/* LLMCHARTS marketing — Altitude.so section clone */
@import url('https://api.fontshare.com/v2/css?f[]=satoshi@400,500,600,700&display=swap');

:root,
html[data-theme="dark"] {
  --alt-bg: #10161f;
  --alt-bg-deep: #0a1018;
  --alt-card: #171e29;
  --alt-elevated: #1e2836;
  --alt-hover: #273243;
  --alt-fg: #e8eef6;
  --alt-muted: #9aabc0;
  --alt-border: rgba(165, 181, 210, 0.14);
  --alt-stone: #dce4f0;
  --alt-stone-panel: #c5d0e0;
  --alt-workflow-panel: #141b26;
  --alt-workflow-tile: #1e2836;
  --alt-workflow-tile-hover: #273243;
  --alt-workflow-fg: #e8eef6;
  --alt-workflow-icon: #a5b5d2;
  --alt-workflow-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
  --alt-workflow-shadow-hover: 0 10px 28px rgba(0, 0, 0, 0.4);
  --alt-primary: #f5f7fa;
  --alt-primary-fg: #10161f;
  --alt-blue: #496995;
  --alt-blue-soft: #a5b5d2;
  --alt-trust-logo: #a5b5d2;
  --alt-radius: 0.5rem;
  --alt-radius-xl: 0.75rem;
  --alt-radius-2xl: 1rem;
  --alt-font-serif: "Satoshi", system-ui, -apple-system, sans-serif;
  --alt-font-sans: "Satoshi", system-ui, -apple-system, sans-serif;
  --alt-max: 80rem;
  --alt-header-h: 4rem;
  --alt-fg-strong: #ffffff;
  --alt-header-fg: #edf3f8;
  --alt-header-muted: #dbe9f4;
  --alt-header-bg-scrolled: rgba(10, 16, 24, 0.88);
  --alt-header-shadow: none;
  --alt-header-shadow-scrolled: 0 10px 28px rgba(8, 14, 24, 0.28);
  --alt-hero-fallback: #0b1117;
}

html[data-theme="light"] {
  --alt-bg: #eef2f7;
  --alt-bg-deep: #e4ebf4;
  --alt-card: #ffffff;
  --alt-elevated: #f4f7fb;
  --alt-hover: #e8eef6;
  --alt-fg: #1e3156;
  --alt-muted: #5a6f8c;
  --alt-border: rgba(30, 49, 86, 0.12);
  --alt-stone: #dce4f0;
  --alt-stone-panel: #c5d0e0;
  --alt-workflow-panel: #dce4f0;
  --alt-workflow-tile: #ffffff;
  --alt-workflow-tile-hover: #ffffff;
  --alt-workflow-fg: #1c1917;
  --alt-workflow-icon: #292524;
  --alt-workflow-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  --alt-workflow-shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.12);
  --alt-primary: #1e3156;
  --alt-primary-fg: #f7f9fc;
  --alt-blue: #496995;
  --alt-blue-soft: #a5b5d2;
  --alt-trust-logo: #496995;
  --alt-fg-strong: #15233f;
  /* Header stays dark-glass over the always-dark hero */
  --alt-header-fg: #edf3f8;
  --alt-header-muted: #dbe9f4;
  --alt-header-bg-scrolled: rgba(10, 16, 24, 0.88);
  --alt-header-shadow: none;
  --alt-header-shadow-scrolled: 0 10px 28px rgba(8, 14, 24, 0.28);
  --alt-hero-fallback: #0b1117;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html:not(.landing-ready) body.landing-altitude {
  visibility: hidden;
}

body.landing-altitude {
  margin: 0;
  background: var(--alt-bg);
  color: var(--alt-fg);
  font-family: var(--alt-font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* —— Header —— */
.alt-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--alt-header-h);
  background: transparent;
  border-bottom: 1px solid transparent;
  color: var(--alt-header-fg);
  box-shadow: none;
  transition: background 0.2s ease, border-color 0.2s ease, backdrop-filter 0.2s ease, box-shadow 0.2s ease;
}

.alt-header.is-scrolled {
  background: var(--alt-header-bg-scrolled);
  border-bottom-color: var(--alt-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--alt-header-shadow-scrolled);
}

.alt-header-inner {
  position: relative;
  height: 100%;
  max-width: var(--alt-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (min-width: 1024px) {
  .alt-header-inner {
    padding: 0 2rem;
  }
}

.alt-logo {
  display: inline-flex;
  align-items: center;
  height: 1.75rem;
  position: relative;
  z-index: 2;
}

.alt-logo img {
  height: 1.5rem;
  width: auto;
}

.alt-nav-desktop {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  transform: translateX(-50%);
  z-index: 1;
}

@media (min-width: 768px) {
  .alt-nav-desktop {
    display: flex;
  }
}

.alt-nav-link,
.alt-nav-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  height: var(--alt-header-h);
  padding: 0 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--alt-header-fg);
  transition: color 0.15s ease;
}

.alt-nav-link:hover,
.alt-nav-trigger:hover {
  color: var(--alt-fg-strong);
}

.alt-nav-chevron {
  width: 0.875rem;
  height: 0.875rem;
  opacity: 0.7;
}

.alt-platform {
  position: relative;
}

.alt-platform-menu {
  position: absolute;
  top: calc(100% - 0.5rem);
  left: 50%;
  transform: translateX(-50%);
  min-width: 12rem;
  padding: 0.5rem;
  background: var(--alt-card);
  border: 1px solid var(--alt-border);
  border-radius: var(--alt-radius-xl);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.alt-platform:hover .alt-platform-menu,
.alt-platform:focus-within .alt-platform-menu,
.alt-platform.open .alt-platform-menu {
  opacity: 1;
  pointer-events: auto;
}

.alt-platform-menu a {
  display: block;
  padding: 0.6rem 0.75rem;
  border-radius: var(--alt-radius);
  font-size: 0.875rem;
  color: var(--alt-muted);
}

.alt-platform-menu a:hover {
  background: var(--alt-elevated);
  color: var(--alt-fg);
}

.alt-header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  position: relative;
  z-index: 2;
  margin-left: auto;
}

.alt-login {
  display: none;
  padding: 0 0.75rem;
  height: 2.25rem;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 500;
}

@media (min-width: 768px) {
  .alt-login {
    display: inline-flex;
  }
}

.alt-login:active,
.alt-btn:active {
  transform: scale(0.97);
}

.alt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2.25rem;
  padding: 0 1.1rem;
  border-radius: 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 500;
  backdrop-filter: blur(16px) saturate(1.25);
  -webkit-backdrop-filter: blur(16px) saturate(1.25);
  box-shadow: 0 8px 28px rgba(8, 14, 24, 0.18);
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}

.alt-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.32);
  color: #ffffff;
  box-shadow: 0 10px 32px rgba(8, 14, 24, 0.24);
}

/* Light site CTAs — exclude header (always dark bar) + hero/ghost */
html[data-theme="light"] .alt-btn:not(.alt-hero-cta):not(.alt-btn-ghost):not(:is(.alt-header .alt-btn)) {
  border-color: rgba(30, 49, 86, 0.14);
  background: rgba(30, 49, 86, 0.08);
  color: #1e3156;
  box-shadow: 0 8px 24px rgba(30, 49, 86, 0.08);
}

html[data-theme="light"] .alt-btn:not(.alt-hero-cta):not(.alt-btn-ghost):not(:is(.alt-header .alt-btn)):hover {
  background: rgba(30, 49, 86, 0.14);
  border-color: rgba(30, 49, 86, 0.22);
  color: #1e3156;
}

/* Header stays dark-glass — lock CTA to frosted white regardless of site theme */
html[data-theme="light"] .alt-header a.alt-btn,
html[data-theme="light"] .alt-header .alt-btn {
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  background: rgba(255, 255, 255, 0.12) !important;
  background-color: rgba(255, 255, 255, 0.12) !important;
  color: #ffffff !important;
  box-shadow: 0 8px 28px rgba(8, 14, 24, 0.18) !important;
  backdrop-filter: blur(16px) saturate(1.25) !important;
  -webkit-backdrop-filter: blur(16px) saturate(1.25) !important;
}

html[data-theme="light"] .alt-header a.alt-btn:hover,
html[data-theme="light"] .alt-header .alt-btn:hover {
  background: rgba(255, 255, 255, 0.2) !important;
  background-color: rgba(255, 255, 255, 0.2) !important;
  border-color: rgba(255, 255, 255, 0.32) !important;
  color: #ffffff !important;
  box-shadow: 0 10px 32px rgba(8, 14, 24, 0.24) !important;
}

/* Hero stays dark — frosted glass CTA regardless of site theme */
html[data-theme="light"] .alt-hero a.alt-btn.alt-hero-cta,
html[data-theme="light"] .alt-hero .alt-hero-cta,
html[data-theme="light"] .alt-hero .alt-btn.alt-hero-cta {
  border: 1px solid rgba(255, 255, 255, 0.22) !important;
  background: rgba(255, 255, 255, 0.12) !important;
  background-color: rgba(255, 255, 255, 0.12) !important;
  color: #ffffff !important;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.28) !important;
  backdrop-filter: blur(18px) saturate(1.3) !important;
  -webkit-backdrop-filter: blur(18px) saturate(1.3) !important;
}

html[data-theme="light"] .alt-hero a.alt-btn.alt-hero-cta:hover,
html[data-theme="light"] .alt-hero .alt-hero-cta:hover,
html[data-theme="light"] .alt-hero .alt-btn.alt-hero-cta:hover {
  background: rgba(255, 255, 255, 0.2) !important;
  background-color: rgba(255, 255, 255, 0.2) !important;
  border-color: rgba(255, 255, 255, 0.34) !important;
  color: #ffffff !important;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.28) !important;
}

html[data-theme="light"] .alt-header .theme-menu-trigger,
html[data-theme="light"] .alt-header .alt-lang-trigger {
  border: 1px solid rgba(165, 181, 210, 0.28) !important;
  background: rgba(255, 255, 255, 0.08) !important;
  color: #dbe9f4 !important;
}

html[data-theme="light"] .alt-header .theme-menu-trigger:hover,
html[data-theme="light"] .alt-header .alt-lang-trigger:hover {
  background: rgba(255, 255, 255, 0.14) !important;
  color: #edf3f8 !important;
}

html[data-theme="light"] .alt-header .alt-menu-toggle span {
  background: #edf3f8;
}

.alt-btn-ghost {
  background: transparent !important;
  color: var(--alt-muted);
  padding: 0;
  height: auto;
  gap: 0.35rem;
  border: 0 !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.alt-btn-ghost:hover {
  background: transparent !important;
  color: var(--alt-fg);
  border: 0 !important;
  box-shadow: none !important;
}

html[data-theme="light"] .alt-btn.alt-btn-ghost,
html[data-theme="light"] .alt-btn.alt-btn-ghost:hover {
  background: transparent !important;
  background-color: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  color: var(--alt-muted);
}

html[data-theme="light"] .alt-btn.alt-btn-ghost:hover {
  color: var(--alt-fg);
}

.alt-menu-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
}

@media (min-width: 768px) {
  .alt-menu-toggle {
    display: none;
  }
}

.alt-menu-toggle span {
  display: block;
  height: 1.5px;
  background: var(--alt-header-fg);
  border-radius: 1px;
}

.alt-mobile-nav {
  display: none;
  position: fixed;
  inset: var(--alt-header-h) 0 auto;
  z-index: 99;
  background: var(--alt-bg);
  border-bottom: 1px solid var(--alt-border);
  padding: 1rem 1.5rem 1.5rem;
  flex-direction: column;
  gap: 0.25rem;
}

.alt-mobile-nav.open {
  display: flex;
}

.alt-mobile-nav a {
  padding: 0.85rem 0.25rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border-bottom: 1px solid var(--alt-border);
}

.alt-mobile-nav .alt-btn {
  margin-top: 0.75rem;
  width: 100%;
}

/* —— Hero (always dark — preview emblem stage) —— */
.alt-hero {
  position: relative;
  isolation: isolate;
  min-height: 100svh;
  height: 100svh;
  overflow: hidden;
  background: radial-gradient(ellipse at 72% 45%, #24323d 0%, #0b1117 43%, #070a0d 80%);
  color: #edf3f8;
}

.alt-hero-canvas,
.alt-hero-fallback,
.alt-hero-atmosphere {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.alt-hero-canvas {
  z-index: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.alt-hero.is-ready .alt-hero-canvas {
  opacity: 1;
}

.alt-hero-fallback {
  z-index: 0;
  display: grid;
  place-items: center;
  opacity: 0.22;
}

.alt-hero-fallback img {
  width: min(70vw, 680px);
  filter: drop-shadow(0 0 65px #8ecbff);
}

.alt-hero.is-ready .alt-hero-fallback {
  display: none;
}

.alt-hero-atmosphere {
  z-index: 1;
  background:
    rgba(0, 0, 0, 0.3),
    linear-gradient(90deg, rgba(10, 17, 24, 0.1), transparent 65%),
    linear-gradient(0deg, rgba(10, 17, 24, 0.3), transparent 22%, transparent 87%, rgba(4, 8, 12, 0.12));
}

.alt-hero-content {
  position: absolute;
  z-index: 3;
  left: 8%;
  top: 50%;
  transform: translateY(-42%);
  width: min(36rem, 48vw);
  max-width: calc(100% - 3rem);
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  pointer-events: none;
}

.alt-hero-content .alt-hero-cta {
  pointer-events: auto;
}

.alt-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.35rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(237, 243, 248, 0.72);
  line-height: 1.2;
}

.alt-hero-eyebrow-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  flex-shrink: 0;
  background: #ffffff;
  box-shadow:
    0 0 0 3px rgba(255, 255, 255, 0.12),
    0 0 14px 2px rgba(180, 220, 255, 0.55),
    0 0 28px 6px rgba(120, 180, 255, 0.28);
}

.alt-hero h1 {
  margin: 0;
  font-family: var(--alt-font-serif);
  font-weight: 500;
  font-size: clamp(2.75rem, 6.2vw, 5.25rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  color: #ffffff;
  text-shadow: 0 2px 35px rgba(0, 0, 0, 0.18);
}

.alt-hero-sub {
  margin: 1.65rem 0 0;
  max-width: 28rem;
  font-size: 1.12rem;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: #b9c2ca;
}

.alt-hero .alt-hero-cta,
.alt-hero a.alt-btn.alt-hero-cta {
  margin-top: 1.75rem;
  height: 2.75rem;
  padding: 0 1.35rem;
  border-radius: 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.12) !important;
  background-color: rgba(255, 255, 255, 0.12) !important;
  color: #ffffff;
  font-weight: 600;
  backdrop-filter: blur(18px) saturate(1.3) !important;
  -webkit-backdrop-filter: blur(18px) saturate(1.3) !important;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.28) !important;
}

.alt-hero .alt-hero-cta:hover,
.alt-hero a.alt-btn.alt-hero-cta:hover {
  background: rgba(255, 255, 255, 0.2) !important;
  background-color: rgba(255, 255, 255, 0.2) !important;
  border-color: rgba(255, 255, 255, 0.34);
  color: #ffffff;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.28) !important;
}

.alt-nav-link,
.alt-nav-trigger,
.alt-login {
  color: var(--alt-header-fg);
}

.alt-nav-link:hover,
.alt-nav-trigger:hover,
.alt-login:hover {
  color: #ffffff;
}

.alt-header .alt-btn {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  backdrop-filter: blur(16px) saturate(1.25);
  -webkit-backdrop-filter: blur(16px) saturate(1.25);
}

.alt-header .alt-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.alt-header .theme-menu-trigger,
.alt-header .alt-lang-trigger {
  width: 34px;
  height: 34px;
  padding: 0;
  justify-content: center;
  gap: 0;
  border: 1px solid rgba(165, 181, 210, 0.28);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--alt-header-muted);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.alt-header .theme-menu-trigger:hover,
.alt-header .alt-lang-trigger:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #edf3f8;
}

.alt-header .alt-lang-trigger {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

@media (max-width: 720px) {
  .alt-hero-content {
    left: 6%;
    right: 6%;
    width: auto;
    max-width: none;
    top: 48%;
    transform: translateY(-36%);
  }

  .alt-hero h1 {
    font-size: clamp(2.6rem, 11vw, 3.6rem);
  }

  .alt-hero-sub {
    font-size: 0.95rem;
  }

  .alt-hero-atmosphere {
    background:
      rgba(0, 0, 0, 0.3),
      linear-gradient(90deg, rgba(4, 8, 12, 0.2), transparent),
      linear-gradient(0deg, rgba(10, 17, 24, 0.35), transparent 40%);
  }
}

/* —— Shared product section —— */
.alt-products {
  width: min(90vw, 1800px);
  margin: 0 auto;
  padding: 4rem 0 6rem;
  display: flex;
  flex-direction: column;
  gap: 6rem;
}

@media (min-width: 1024px) {
  .alt-products {
    padding: 6rem 0 8rem;
    gap: 8rem;
  }
}

.alt-feature {
  display: grid;
  gap: 2rem;
  min-height: 60vh;
  align-items: center;
}

@media (min-width: 1100px) {
  .alt-feature {
    grid-template-columns: minmax(16rem, 1fr) minmax(0, 2fr);
    gap: 2.5rem;
    align-items: center;
  }

  .alt-feature-reverse {
    grid-template-columns: minmax(0, 2fr) minmax(16rem, 1fr);
  }

  .alt-feature-reverse .alt-feature-copy {
    order: 2;
  }

  .alt-feature-reverse .alt-feature-media {
    order: 1;
  }
}

.alt-feature-copy {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
  min-width: 0;
}

.alt-feature-mark {
  display: block;
  margin: 0 0 -0.35rem;
  font-family: var(--alt-font-serif);
  font-weight: 500;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--alt-fg-strong);
}

.alt-feature-copy h2 {
  margin: 0;
  font-family: var(--alt-font-serif);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--alt-fg-strong);
}

.alt-feature-copy p {
  margin: 0;
  max-width: 28rem;
  font-size: 1.0625rem;
  color: var(--alt-muted);
  line-height: 1.6;
}

.alt-feature-media {
  position: relative;
  min-width: 0;
  min-height: 28rem;
  border-radius: var(--alt-radius-2xl);
  overflow: hidden;
}

@media (min-width: 1100px) {
  .alt-feature-media {
    min-height: 34rem;
  }
}

#workflows .alt-feature-media {
  overflow: hidden;
  min-height: 26rem;
}

.alt-media-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.55) saturate(0.85);
}

.alt-media-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(24, 24, 24, 0.15), rgba(24, 24, 24, 0.55));
}

#terminal .alt-media-bg {
  filter: brightness(0.92) saturate(0.92) contrast(1.02);
}

#terminal .alt-media-bg::after {
  background: linear-gradient(180deg, rgba(16, 22, 31, 0.12), rgba(16, 22, 31, 0.35));
}

html[data-theme="light"] #terminal .alt-media-bg {
  filter: brightness(0.98) saturate(0.9) contrast(1.02);
}

html[data-theme="light"] #terminal .alt-media-bg::after {
  background: linear-gradient(180deg, rgba(238, 242, 247, 0.1), rgba(16, 22, 31, 0.22));
}

#algos .alt-media-bg {
  filter: brightness(0.88) saturate(0.95) contrast(1.04);
}

#algos .alt-media-bg::after {
  background: linear-gradient(180deg, rgba(8, 14, 24, 0.18), rgba(8, 14, 24, 0.42));
}

html[data-theme="light"] #algos .alt-media-bg {
  filter: brightness(0.96) saturate(0.92) contrast(1.02);
}

html[data-theme="light"] #algos .alt-media-bg::after {
  background: linear-gradient(180deg, rgba(8, 14, 24, 0.1), rgba(8, 14, 24, 0.32));
}

.alt-window {
  position: absolute;
  inset: 8% 6% 8%;
  display: flex;
  flex-direction: column;
  background: rgba(17, 17, 17, 0.92);
  border: 1px solid var(--alt-border);
  border-radius: var(--alt-radius-xl);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.alt-window-chrome {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--alt-border);
  background: rgba(31, 31, 31, 0.9);
}

.alt-traffic {
  display: flex;
  gap: 0.4rem;
}

.alt-traffic i {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  display: block;
}

.alt-traffic i:nth-child(1) { background: #ff5f57; }
.alt-traffic i:nth-child(2) { background: #febc2e; }
.alt-traffic i:nth-child(3) { background: #28c840; }

.alt-url-chip {
  flex: 1;
  max-width: 16rem;
  margin: 0 auto;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--alt-elevated);
  border: 1px solid var(--alt-border);
  font-size: 0.75rem;
  color: var(--alt-muted);
  text-align: center;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.alt-window-body {
  flex: 1;
  display: grid;
  grid-template-columns: 13rem 1fr;
  min-height: 0;
}

@media (max-width: 900px) {
  .alt-window-body {
    grid-template-columns: 1fr;
  }

  .alt-sidebar {
    display: none;
  }
}

.alt-sidebar {
  border-right: 1px solid var(--alt-border);
  padding: 1rem 0.85rem;
  background: #141414;
  overflow: auto;
}

.alt-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  padding: 0 0.35rem;
}

.alt-sidebar-brand img {
  height: 1.1rem;
  width: auto;
}

.alt-sidebar-label {
  margin: 0.75rem 0 0.4rem;
  padding: 0 0.35rem;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--alt-muted);
}

.alt-sidebar-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.5rem;
  border-radius: 0.4rem;
  font-size: 0.8rem;
  color: var(--alt-fg);
}

.alt-sidebar-item.active {
  background: var(--alt-elevated);
}

.alt-sidebar-item .dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: #f59e0b;
  flex-shrink: 0;
}

.alt-sidebar-file {
  font-size: 0.72rem;
  color: var(--alt-muted);
  padding: 0.35rem 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.alt-main-pane {
  padding: 1rem 1.15rem;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.alt-chat-prompt {
  align-self: flex-end;
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: var(--alt-radius-xl);
  background: var(--alt-elevated);
  border: 1px solid var(--alt-border);
  font-size: 0.875rem;
}

.alt-chat-meta {
  font-size: 0.75rem;
  color: var(--alt-muted);
}

.alt-chat-reply {
  font-size: 0.875rem;
  color: #d4d4d4;
  line-height: 1.55;
}

.alt-chart-card {
  margin-top: 0.25rem;
  border: 1px solid var(--alt-border);
  border-radius: var(--alt-radius-xl);
  overflow: hidden;
  background: #0c0c0c;
}

.alt-chart-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--alt-border);
  font-size: 0.75rem;
  color: var(--alt-muted);
}

.alt-chart-card-head strong {
  color: var(--alt-fg);
  font-weight: 500;
}

.alt-candles {
  height: 180px;
  padding: 1rem 1.25rem 0.75rem;
  display: flex;
  align-items: flex-end;
  gap: 0.45rem;
}

.alt-candle {
  flex: 1;
  border-radius: 2px 2px 0 0;
  position: relative;
  min-width: 0;
}

.alt-candle::before {
  content: "";
  position: absolute;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
  background: currentColor;
  opacity: 0.55;
}

.alt-candle.up {
  background: #3ecf8e;
  color: #3ecf8e;
}

.alt-candle.down {
  background: #ef4444;
  color: #ef4444;
}

.alt-levels {
  display: flex;
  gap: 0.5rem;
  padding: 0 1rem 1rem;
  flex-wrap: wrap;
}

.alt-level {
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--alt-border);
  color: var(--alt-muted);
}

.alt-level.long { color: #3ecf8e; border-color: rgba(62, 207, 142, 0.35); }
.alt-level.short { color: #f87171; border-color: rgba(248, 113, 113, 0.35); }

/* —— Copilot demo (Terminal section) —— */
.alt-copilot-demo,
.alt-algo-demo {
  --demo-bull: #a5b5d2;
  --demo-bear: #34466f;
  --demo-success: #a5b5d2;
  --demo-success-ink: #0a0c10;
  --demo-fg: #edf3f8;
  --demo-fg-muted: rgba(237, 243, 248, 0.55);
  --demo-fg-dim: rgba(237, 243, 248, 0.35);
  --demo-border: rgba(255, 255, 255, 0.1);
  --demo-border-soft: rgba(255, 255, 255, 0.06);
  --demo-surface: rgba(12, 14, 18, 0.92);
  --demo-chart-bg: #0a0c10;
  --demo-composer-bg: rgba(28, 30, 36, 0.95);
  --demo-bubble: rgba(165, 181, 210, 0.2);
  --demo-step-bg: rgba(255, 255, 255, 0.03);
  --demo-grid: rgba(255, 255, 255, 0.04);
  --demo-grid-v: rgba(255, 255, 255, 0.03);
  --demo-send-bg: rgba(255, 255, 255, 0.12);
  --demo-send-ready-bg: #f4f4f5;
  --demo-send-ready-fg: #111110;
  --demo-ghost: rgba(255, 255, 255, 0.06);
  position: absolute;
  inset: 7% 4.5% 6%;
  z-index: 2;
  display: flex;
}

html[data-theme="light"] .alt-copilot-demo,
html[data-theme="light"] .alt-algo-demo {
  --demo-bull: #a5b5d2;
  --demo-bear: #34466f;
  --demo-success: #1e3156;
  --demo-success-ink: #f7f9fc;
  --demo-fg: #1e3156;
  --demo-fg-muted: rgba(30, 49, 86, 0.55);
  --demo-fg-dim: rgba(30, 49, 86, 0.38);
  --demo-border: rgba(30, 49, 86, 0.12);
  --demo-border-soft: rgba(30, 49, 86, 0.08);
  --demo-surface: rgba(255, 255, 255, 0.96);
  --demo-chart-bg: #ffffff;
  --demo-composer-bg: #f3f4f6;
  --demo-bubble: rgba(165, 181, 210, 0.38);
  --demo-step-bg: rgba(30, 49, 86, 0.03);
  --demo-grid: rgba(30, 49, 86, 0.06);
  --demo-grid-v: rgba(30, 49, 86, 0.045);
  --demo-send-bg: rgba(30, 49, 86, 0.1);
  --demo-send-ready-bg: #1e3156;
  --demo-send-ready-fg: #f7f9fc;
  --demo-ghost: rgba(30, 49, 86, 0.08);
}

.alt-copilot-window,
.alt-algo-window {
  position: relative;
  inset: auto;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--demo-surface);
  border: 1px solid var(--demo-border);
  color: var(--demo-fg);
  box-shadow:
    0 40px 100px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

html[data-theme="light"] .alt-copilot-window,
html[data-theme="light"] .alt-algo-window {
  box-shadow:
    0 28px 70px rgba(30, 49, 86, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

html[data-theme="light"] .alt-copilot-window .alt-window-chrome,
html[data-theme="light"] .alt-algo-window .alt-window-chrome {
  background: rgba(243, 244, 246, 0.95);
  border-bottom-color: var(--demo-border-soft);
}

.alt-demo-views {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.alt-demo-view {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  transition:
    opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

.alt-demo-chat {
  opacity: 1;
  transform: none;
  z-index: 2;
}

.alt-demo-chart-view {
  opacity: 0;
  transform: translateX(18px) scale(0.985);
  pointer-events: none;
  z-index: 1;
  background: var(--demo-chart-bg);
}

.alt-copilot-demo.is-chart-screen .alt-demo-chat,
.alt-algo-demo.is-backtest-screen .alt-algo-chat {
  opacity: 0;
  transform: translateX(-16px) scale(0.985);
  pointer-events: none;
}

.alt-copilot-demo.is-chart-screen .alt-demo-chart-view,
.alt-algo-demo.is-backtest-screen .alt-algo-backtest {
  opacity: 1;
  transform: none;
  pointer-events: auto;
  z-index: 3;
}

.alt-copilot-demo.is-rewind .alt-demo-chat,
.alt-algo-demo.is-rewind .alt-algo-chat {
  transition-duration: 0.45s;
}

.alt-copilot-demo.is-rewind .alt-demo-chart-view,
.alt-algo-demo.is-rewind .alt-algo-backtest {
  opacity: 0;
  transform: translateX(14px);
}

.alt-algo-backtest {
  opacity: 0;
  transform: translateX(18px) scale(0.985);
  pointer-events: none;
  z-index: 1;
  background: var(--demo-chart-bg);
}

/* Thread */
.alt-demo-thread {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  padding: 0.85rem 0.9rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  justify-content: flex-end;
}

.alt-demo-msg {
  display: flex;
  max-width: 100%;
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 0.35s ease,
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.alt-copilot-demo.is-user .alt-demo-msg-user,
.alt-copilot-demo.is-reply .alt-demo-msg-assistant,
.alt-algo-demo.is-user .alt-demo-msg-user,
.alt-algo-demo.is-reply .alt-demo-msg-assistant {
  opacity: 1;
  transform: none;
}

.alt-demo-msg-user {
  justify-content: flex-end;
}

.alt-demo-msg-bubble {
  max-width: 92%;
  padding: 0.55rem 0.75rem;
  border-radius: 18px 18px 6px 18px;
  background: var(--demo-bubble);
  color: var(--demo-fg);
  font-size: 0.8rem;
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.alt-demo-msg-assistant {
  align-items: flex-start;
  gap: 0.55rem;
}

.alt-demo-msg-avatar {
  width: 1.1rem;
  height: 1.2rem;
  border-radius: 0;
  background: transparent;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.alt-demo-msg-avatar .alt-demo-mark {
  width: 1.05rem;
  height: auto;
  display: block;
  filter: none;
  opacity: 0.95;
}

.alt-demo-msg-avatar .alt-demo-mark-on-light {
  display: none;
}

html[data-theme="light"] .alt-demo-msg-avatar .alt-demo-mark-on-dark {
  display: none;
}

html[data-theme="light"] .alt-demo-msg-avatar .alt-demo-mark-on-light {
  display: block;
}

.alt-demo-msg-body {
  flex: 1;
  min-width: 0;
  color: var(--demo-fg);
  opacity: 0.9;
  font-size: 0.8rem;
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.alt-demo-typing {
  display: none;
  align-items: center;
  padding: 0.15rem 0;
}

.alt-copilot-demo.is-typing-ai .alt-demo-typing,
.alt-algo-demo.is-typing-ai .alt-demo-typing {
  display: inline-flex;
}

.alt-demo-typing-dots {
  display: inline-flex;
  gap: 0.28rem;
  padding: 0.35rem 0.15rem;
}

.alt-demo-typing-dots i {
  width: 0.32rem;
  height: 0.32rem;
  border-radius: 50%;
  background: var(--demo-fg-muted);
  animation: alt-think 1s ease-in-out infinite;
}

.alt-demo-typing-dots i:nth-child(2) { animation-delay: 0.15s; }
.alt-demo-typing-dots i:nth-child(3) { animation-delay: 0.3s; }

.alt-demo-steps {
  display: none;
  border: 1px solid var(--demo-border);
  border-radius: 10px;
  background: var(--demo-step-bg);
  overflow: hidden;
}

.alt-copilot-demo.is-tools .alt-demo-steps,
.alt-copilot-demo.is-reply .alt-demo-steps,
.alt-algo-demo.is-tools .alt-demo-steps,
.alt-algo-demo.is-reply .alt-demo-steps {
  display: block;
  animation: alt-demo-fade-up 0.35s ease both;
}

.alt-demo-steps-head {
  padding: 0.45rem 0.65rem;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--demo-fg-muted);
  border-bottom: 1px solid var(--demo-border-soft);
}

.alt-demo-steps-list {
  display: flex;
  flex-direction: column;
}

.alt-demo-step {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.65rem;
  font-size: 0.72rem;
  color: var(--demo-fg-muted);
  border-top: 1px solid var(--demo-border-soft);
  opacity: 0.4;
  transition: opacity 0.3s ease, color 0.3s ease;
}

.alt-demo-step.is-running,
.alt-demo-step.is-ok {
  opacity: 1;
  color: var(--demo-fg);
}

.alt-demo-step-icon {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  border: 1.5px solid color-mix(in srgb, var(--demo-bull) 55%, transparent);
  flex-shrink: 0;
  position: relative;
}

.alt-demo-step.is-running .alt-demo-step-icon {
  border-color: transparent;
  border-top-color: var(--demo-bull);
  animation: alt-spin 0.7s linear infinite;
}

.alt-demo-step.is-ok .alt-demo-step-icon {
  border-color: var(--demo-success);
  background: var(--demo-success);
  box-shadow: inset 0 0 0 1.5px var(--demo-chart-bg);
}

@keyframes alt-spin {
  to { transform: rotate(360deg); }
}

@keyframes alt-demo-fade-up {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* Composer — mirrors .llm-composer-box */
.alt-demo-composer {
  flex-shrink: 0;
  padding: 0.45rem 0.65rem 0.75rem;
  border-top: 1px solid var(--demo-border-soft);
}

.alt-demo-composer-box {
  border-radius: 14px;
  border: 1px solid var(--demo-border);
  background: var(--demo-composer-bg);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.18),
    0 10px 28px rgba(0, 0, 0, 0.16);
  padding: 0.65rem 0.7rem 0.55rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

html[data-theme="light"] .alt-demo-composer-box {
  box-shadow:
    0 1px 3px rgba(30, 49, 86, 0.06),
    0 8px 20px rgba(30, 49, 86, 0.06);
}

.alt-copilot-demo.is-focus .alt-demo-composer-box,
.alt-algo-demo.is-focus .alt-demo-composer-box {
  border-color: color-mix(in srgb, var(--demo-bull) 45%, transparent);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--demo-bull) 12%, transparent),
    0 10px 28px rgba(0, 0, 0, 0.18);
}

.alt-demo-composer-row {
  display: flex;
  align-items: flex-end;
  gap: 0.45rem;
}

.alt-demo-input {
  flex: 1;
  min-width: 0;
  min-height: 1.55rem;
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--demo-fg);
  letter-spacing: -0.01em;
}

.alt-demo-placeholder {
  color: var(--demo-fg-dim);
}

.alt-copilot-demo.is-drafting .alt-demo-placeholder,
.alt-copilot-demo.is-user .alt-demo-placeholder,
.alt-algo-demo.is-drafting .alt-demo-placeholder,
.alt-algo-demo.is-user .alt-demo-placeholder {
  display: none;
}

.alt-demo-caret {
  display: inline-block;
  width: 0.08rem;
  height: 0.95em;
  margin-left: 0.1rem;
  vertical-align: -0.12em;
  background: var(--demo-fg);
  opacity: 0;
}

.alt-copilot-demo.is-drafting .alt-demo-input .alt-demo-caret,
.alt-copilot-demo.is-replying .alt-demo-msg-body .alt-demo-caret,
.alt-algo-demo.is-drafting .alt-demo-input .alt-demo-caret {
  opacity: 1;
  animation: alt-caret 1s steps(1) infinite;
}

@keyframes alt-caret {
  50% { opacity: 0; }
}

.alt-demo-send {
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 999px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  background: var(--demo-send-bg);
  color: var(--demo-fg);
  opacity: 0.4;
  transition: opacity 0.25s ease, background 0.25s ease, transform 0.2s ease, color 0.25s ease;
}

.alt-copilot-demo.is-ready .alt-demo-send,
.alt-algo-demo.is-ready .alt-demo-send {
  opacity: 1;
  background: var(--demo-send-ready-bg);
  color: var(--demo-send-ready-fg);
}

.alt-copilot-demo.is-sending .alt-demo-send,
.alt-algo-demo.is-sending .alt-demo-send {
  transform: scale(0.88);
  opacity: 0.7;
}

.alt-demo-composer-tools {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin-top: 0.45rem;
}

.alt-demo-tool-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--demo-fg-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  pointer-events: none;
}

.alt-demo-tool-icon svg {
  display: block;
}

.alt-demo-composer-spacer { flex: 1; }

.alt-demo-model-pill {
  font-size: 0.65rem;
  color: var(--demo-fg-muted);
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--demo-border-soft);
}

/* Chart view */
.alt-demo-chart-bar {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--demo-border-soft);
  font-size: 0.72rem;
  color: var(--demo-fg-muted);
}

.alt-demo-chart-bar strong {
  color: var(--demo-fg);
  font-weight: 500;
}

.alt-demo-chart-bar em {
  margin-left: auto;
  font-style: normal;
  color: var(--demo-success);
  font-weight: 500;
}

.alt-demo-plot {
  position: relative;
  flex: 1;
  min-height: 0;
  padding: 0.75rem 2.65rem 0.85rem 0.75rem;
}

.alt-demo-grid {
  position: absolute;
  inset: 0.75rem 2.65rem 0.85rem 0.75rem;
  background-image:
    linear-gradient(var(--demo-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--demo-grid-v) 1px, transparent 1px);
  background-size: 100% 25%, 12.5% 100%;
  pointer-events: none;
}

.alt-demo-candles {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
}

.alt-demo-candles .c-wick {
  stroke-width: 1.15;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.alt-demo-candles .c-body {
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center bottom;
  transform: scaleY(0.12);
  transition:
    opacity 0.35s ease,
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.alt-copilot-demo.is-candles .c-wick,
.alt-copilot-demo.is-candles .c-body {
  opacity: 1;
  transform: none;
}

.alt-demo-candles .up .c-wick { stroke: var(--demo-bull); }
.alt-demo-candles .up .c-body { fill: var(--demo-bull); }
.alt-demo-candles .down .c-wick { stroke: var(--demo-bear); }
.alt-demo-candles .down .c-body { fill: var(--demo-bear); }

.alt-demo-yaxis {
  position: absolute;
  top: 0.75rem;
  right: 0.45rem;
  bottom: 0.85rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-size: 0.58rem;
  color: var(--demo-fg-dim);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

.alt-zone {
  position: absolute;
  left: 0.75rem;
  /* Extend past last candle into empty future space (before y-axis) */
  right: 1.15rem;
  height: 14%;
  border-radius: 0.3rem;
  display: flex;
  align-items: flex-start;
  padding: 0.18rem 0.45rem;
  opacity: 0;
  transform: scaleX(0.15);
  transform-origin: left center;
  transition:
    opacity 0.4s ease,
    transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
  z-index: 2;
}

.alt-zone span {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.alt-zone-support {
  bottom: 22%;
  align-items: flex-start;
  justify-content: flex-start;
  background: color-mix(in srgb, var(--demo-bull) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--demo-bull) 42%, transparent);
  box-shadow: 0 0 28px color-mix(in srgb, var(--demo-bull) 16%, transparent);
  color: var(--demo-bull);
}

.alt-zone-support span {
  position: absolute;
  right: 0.45rem;
  bottom: 0.18rem;
  left: auto;
  top: auto;
}

.alt-zone-resist {
  top: 18%;
  align-items: flex-start;
  justify-content: flex-start;
  background: color-mix(in srgb, var(--demo-bear) 22%, transparent);
  border: 1px solid color-mix(in srgb, var(--demo-bear) 48%, transparent);
  box-shadow: 0 0 28px color-mix(in srgb, var(--demo-bear) 14%, transparent);
  color: color-mix(in srgb, var(--demo-bull) 55%, var(--demo-bear));
}

.alt-zone-resist span {
  position: absolute;
  left: 0.45rem;
  top: 0.18rem;
  right: auto;
  bottom: auto;
}

html[data-theme="light"] .alt-zone-resist {
  color: var(--demo-bear);
}

.alt-copilot-demo.is-support [data-demo-zone="support"],
.alt-copilot-demo.is-resist [data-demo-zone="resist"] {
  opacity: 1;
  transform: none;
}

.alt-bias-mark {
  position: absolute;
  z-index: 3;
  transform: translate(-50%, 10px) scale(0.88);
  opacity: 0;
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  pointer-events: none;
  transition:
    opacity 0.35s ease,
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.alt-short-mark {
  /* Centered above last candle (chartEnd 292 / 360 ≈ 0.791 of plot width) */
  left: calc(0.75rem + (100% - 0.75rem - 2.65rem) * 0.791);
  top: 9%;
  background: var(--demo-bear);
  color: var(--demo-bull);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--demo-bear) 40%, transparent);
}

html[data-theme="light"] .alt-short-mark {
  color: #f7f9fc;
}

.alt-copilot-demo.is-short .alt-short-mark {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}

@media (max-width: 720px) {
  .alt-copilot-demo {
    inset: 5% 3.5% 4%;
  }

  .alt-demo-msg-bubble,
  .alt-demo-msg-body,
  .alt-demo-input {
    font-size: 0.76rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .alt-demo-view,
  .alt-demo-msg,
  .alt-zone,
  .alt-short-mark,
  .alt-bias-mark,
  .alt-demo-candles .c-body,
  .alt-demo-candles .c-wick {
    transition: none !important;
    animation: none !important;
  }

  .alt-copilot-demo .alt-demo-chart-view,
  .alt-copilot-demo .alt-demo-msg-user,
  .alt-copilot-demo .alt-demo-msg-assistant,
  .alt-copilot-demo .alt-zone,
  .alt-copilot-demo .alt-short-mark,
  .alt-copilot-demo .c-body,
  .alt-copilot-demo .c-wick {
    opacity: 1;
    transform: none;
  }

  .alt-demo-caret,
  .alt-demo-typing {
    display: none !important;
  }
}

/* —— Workflows —— */
.alt-workflows-panel {
  height: 100%;
  min-height: 420px;
  border-radius: var(--alt-radius-xl);
  background: var(--alt-workflow-panel);
  border: 1px solid var(--alt-border);
  padding: 1.75rem 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.25rem;
  overflow: hidden;
  position: relative;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.alt-workflows-panel::before,
.alt-workflows-panel::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 4rem;
  z-index: 2;
  pointer-events: none;
}

.alt-workflows-panel::before {
  left: 0;
  background: linear-gradient(90deg, var(--alt-workflow-panel), transparent);
}

.alt-workflows-panel::after {
  right: 0;
  background: linear-gradient(270deg, var(--alt-workflow-panel), transparent);
}

.alt-marquee {
  display: flex;
  width: max-content;
  gap: 1rem;
  animation: alt-scroll-left var(--scroll-speed, 26s) linear infinite;
}

.alt-marquee:hover {
  animation-play-state: paused;
}

.alt-marquee.reverse {
  animation-name: alt-scroll-right;
  --scroll-speed: 30s;
}

.alt-workflow-tile {
  width: 10.5rem;
  padding: 1.35rem 1rem;
  background: var(--alt-workflow-tile);
  border: 1px solid var(--alt-border);
  border-radius: var(--alt-radius-xl);
  box-shadow: var(--alt-workflow-shadow);
  text-align: center;
  color: var(--alt-workflow-fg);
  transition: box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  flex-shrink: 0;
}

.alt-workflow-tile:hover {
  background: var(--alt-workflow-tile-hover);
  box-shadow: var(--alt-workflow-shadow-hover);
}

.alt-workflow-tile svg {
  width: 2rem;
  height: 2rem;
  margin: 0 auto 0.75rem;
  stroke: var(--alt-workflow-icon);
  fill: none;
  stroke-width: 1.5;
  transition: stroke 0.2s ease;
}

.alt-workflow-tile span {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.3;
}

@keyframes alt-scroll-left {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes alt-scroll-right {
  from { transform: translateX(-50%); }
  to { transform: translateX(0); }
}

/* —— Algo demo (strategy → backtest) —— */
.alt-algo-demo .alt-demo-thread {
  justify-content: flex-start;
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-behavior: smooth;
}

.alt-algo-demo .alt-demo-thread::-webkit-scrollbar {
  display: none;
}

.alt-algo-demo.is-reply .alt-demo-steps-list {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.25s ease;
}

.alt-algo-demo.is-tools:not(.is-reply) .alt-demo-steps-list {
  max-height: 12rem;
  opacity: 1;
}

@media (max-width: 720px) {
  #algos .alt-feature-media {
    min-height: 32rem;
  }

  .alt-algo-demo {
    inset: 4% 3% 3.5%;
  }

  .alt-algo-demo .alt-demo-thread {
    padding: 0.55rem 0.65rem 0.35rem;
    gap: 0.45rem;
  }

  .alt-algo-demo .alt-demo-composer {
    padding: 0.35rem 0.55rem 0.55rem;
  }

  .alt-algo-demo .alt-demo-composer-box {
    padding: 0.5rem 0.55rem 0.45rem;
  }

  .alt-algo-demo .alt-demo-msg-bubble {
    max-width: 100%;
    padding: 0.45rem 0.6rem;
    font-size: 0.72rem;
    line-height: 1.35;
  }

  .alt-algo-demo .alt-demo-steps-head {
    padding: 0.35rem 0.55rem;
    font-size: 0.64rem;
  }

  .alt-algo-demo .alt-demo-step {
    padding: 0.35rem 0.55rem;
    font-size: 0.66rem;
    gap: 0.4rem;
  }

  .alt-algo-demo.is-tools:not(.is-reply) .alt-demo-steps-list {
    max-height: none;
  }

  .alt-algo-strategy {
    padding: 0.5rem 0.6rem 0.55rem;
  }

  .alt-algo-strategy header strong {
    font-size: 0.74rem;
  }

  .alt-algo-strategy li {
    font-size: 0.66rem;
    grid-template-columns: 2.6rem 1fr;
  }

  .alt-algo-strategy p {
    margin-top: 0.4rem;
    font-size: 0.64rem;
  }
}

.alt-algo-strategy {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--demo-border);
  border-radius: 12px;
  background: var(--demo-step-bg);
  padding: 0.6rem 0.75rem 0.65rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.alt-algo-demo.is-reply .alt-algo-strategy {
  opacity: 1;
  transform: none;
}

.alt-algo-strategy header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.45rem;
}

.alt-algo-strategy header strong {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--demo-fg);
}

.alt-algo-strategy header span {
  font-size: 0.66rem;
  color: var(--demo-fg-muted);
  white-space: nowrap;
}

.alt-algo-strategy ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
}

.alt-algo-strategy li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 0.4rem;
  font-size: 0.7rem;
  line-height: 1.35;
  color: var(--demo-fg);
}

.alt-algo-strategy li em {
  font-style: normal;
  color: var(--demo-fg-muted);
  font-weight: 500;
}

.alt-algo-strategy p {
  margin: 0.5rem 0 0;
  font-size: 0.68rem;
  color: var(--demo-fg-muted);
}

.alt-algo-bt-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--demo-border-soft);
  flex-shrink: 0;
}

.alt-algo-bt-title {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  min-width: 0;
}

.alt-algo-bt-title strong {
  font-size: 0.8rem;
  font-weight: 500;
}

.alt-algo-bt-title span {
  font-size: 0.66rem;
  color: var(--demo-fg-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.alt-algo-bt-bar em {
  font-style: normal;
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--demo-fg-muted);
  padding: 0.26rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--demo-border);
  background: var(--demo-ghost);
  white-space: nowrap;
}

.alt-algo-demo.is-running .alt-algo-bt-bar em {
  color: var(--demo-bull);
  border-color: color-mix(in srgb, var(--demo-bull) 40%, transparent);
}

.alt-algo-demo.is-done .alt-algo-bt-bar em {
  color: var(--demo-success);
  border-color: color-mix(in srgb, var(--demo-success) 40%, transparent);
}

.alt-algo-equity {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 0.5rem 0 0.2rem;
  color: var(--demo-bull);
}

@media (min-width: 1100px) {
  .alt-algo-equity {
    padding: 0.4rem 0 0.1rem;
  }

  .alt-algo-equity-head {
    padding: 0 0.75rem 0.25rem;
  }

  .alt-algo-stats {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }
}

.alt-algo-equity-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0 0.65rem 0.25rem;
  flex-shrink: 0;
}

.alt-algo-equity-label {
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--demo-fg-muted);
}

.alt-algo-legend {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.alt-algo-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--demo-fg-muted);
}

.alt-algo-legend-item i {
  width: 0.85rem;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
}

.alt-algo-legend-item.is-strategy {
  color: var(--demo-bull);
}

.alt-algo-legend-item.is-hold {
  color: var(--demo-fg-dim);
}

.alt-algo-legend-item.is-hold i {
  background: transparent;
  border-top: 1.5px dashed currentColor;
  height: 0;
}

.alt-algo-chart-wrap {
  flex: 1;
  min-height: 0;
  width: 100%;
  display: flex;
}

.alt-algo-equity-svg {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 8.5rem;
  overflow: visible;
  color: var(--demo-bull);
}

.alt-algo-axes .alt-algo-grid-line {
  stroke: var(--demo-grid);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.alt-algo-axes .alt-algo-axis-line {
  stroke: var(--demo-border);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.alt-algo-axes text {
  fill: var(--demo-fg-muted);
  font-size: 9px;
  font-family: var(--alt-font-sans);
  font-weight: 500;
}

.alt-algo-equity-line {
  stroke: currentColor;
  stroke-width: 1.45;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  vector-effect: non-scaling-stroke;
}

.alt-algo-hold-line {
  stroke: var(--demo-fg-dim);
  stroke-width: 1.15;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 4.5 3.5;
  fill: none;
  vector-effect: non-scaling-stroke;
}

.alt-algo-equity-fill {
  opacity: 0.95;
}

.alt-algo-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.3rem;
  padding: 0.45rem 0.65rem 0.7rem;
  border-top: 1px solid var(--demo-border-soft);
  flex-shrink: 0;
}

.alt-algo-stat {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  padding: 0.4rem 0.35rem;
  border-radius: 8px;
  background: var(--demo-ghost);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.35s ease, transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.alt-algo-demo.is-stats .alt-algo-stat {
  opacity: 1;
  transform: none;
}

.alt-algo-demo.is-stats .alt-algo-stat:nth-child(2) { transition-delay: 0.06s; }
.alt-algo-demo.is-stats .alt-algo-stat:nth-child(3) { transition-delay: 0.12s; }
.alt-algo-demo.is-stats .alt-algo-stat:nth-child(4) { transition-delay: 0.18s; }

.alt-algo-stat span {
  font-size: 0.6rem;
  color: var(--demo-fg-muted);
  font-weight: 500;
}

.alt-algo-stat strong {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--demo-fg);
  letter-spacing: -0.02em;
}

.alt-algo-stat strong.is-pos { color: var(--demo-bull); }
.alt-algo-stat strong.is-neg { color: #f87171; }

@media (max-width: 720px) {
  .alt-algo-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* —— Signal / Research table (archived section styles kept) —— */
.alt-table-window {
  inset: 6% 4% 6%;
}

.alt-table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--alt-border);
  flex-wrap: wrap;
}

.alt-table-title {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.alt-table-title strong {
  font-size: 0.9375rem;
  font-weight: 500;
}

.alt-table-title span {
  font-size: 0.75rem;
  color: var(--alt-muted);
}

.alt-table-actions {
  display: flex;
  gap: 0.5rem;
}

.alt-mini-btn {
  height: 2rem;
  padding: 0 0.75rem;
  border-radius: var(--alt-radius);
  border: 1px solid var(--alt-border);
  background: var(--alt-elevated);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--alt-fg);
}

.alt-table-wrap {
  overflow: auto;
  max-height: 100%;
}

.alt-data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
  white-space: nowrap;
}

.alt-data-table th {
  text-align: left;
  padding: 0.7rem 0.9rem;
  color: var(--alt-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--alt-border);
  background: #161616;
  position: sticky;
  top: 0;
}

.alt-data-table td {
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid rgba(238, 238, 238, 0.05);
  color: #d4d4d4;
}

.alt-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 500;
}

.alt-pill.buy { background: rgba(62, 207, 142, 0.15); color: #3ecf8e; }
.alt-pill.sell { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.alt-pill.news { background: rgba(43, 127, 255, 0.15); color: #60a5fa; }
.alt-pill.algo { background: rgba(168, 85, 247, 0.15); color: #c084fc; }

.alt-shimmer {
  background: linear-gradient(90deg, #3a3a3a 0%, #6b6b6b 50%, #3a3a3a 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: alt-shimmer 1.6s linear infinite;
}

@keyframes alt-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.alt-table-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--alt-border);
  font-size: 0.72rem;
  color: var(--alt-muted);
}

/* —— Trust / providers —— */
.alt-trust {
  max-width: 1400px;
  margin: 0 auto;
  padding: 3.25rem 0 2.25rem;
  overflow: hidden;
}

@media (min-width: 1024px) {
  .alt-trust {
    padding: 4.5rem 0 3rem;
  }
}

.alt-trust-intro {
  text-align: center;
  max-width: 42rem;
  margin: 0 auto 1.5rem;
  padding: 0 1.25rem;
}

@media (min-width: 768px) {
  .alt-trust-intro {
    margin-bottom: 2rem;
  }
}

.alt-trust-intro h2 {
  margin: 0;
  font-family: var(--alt-font-serif);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 2.85rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.alt-trust-intro p {
  margin: 0.75rem 0 0;
  color: var(--alt-muted);
  font-size: 1.0625rem;
  line-height: 1.55;
}

.alt-trust-rail {
  position: relative;
  overflow: hidden;
  padding: 0.25rem 0;
}

.alt-trust-fade {
  position: absolute;
  top: 0;
  bottom: 0;
  width: clamp(2rem, 10vw, 5rem);
  z-index: 2;
  pointer-events: none;
}

.alt-trust-fade-left {
  left: 0;
  background: linear-gradient(90deg, var(--alt-bg), transparent);
}

.alt-trust-fade-right {
  right: 0;
  background: linear-gradient(270deg, var(--alt-bg), transparent);
}

.alt-trust-track {
  display: flex;
  width: max-content;
  align-items: center;
  gap: 1.5rem;
  animation: alt-scroll-left 45s linear infinite;
  will-change: transform;
}

@media (min-width: 768px) {
  .alt-trust-track {
    gap: 2.25rem;
  }
}

.alt-trust-rail:hover .alt-trust-track {
  animation-play-state: paused;
}

.alt-trust-item {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  height: 1.75rem;
  padding: 0;
  opacity: 0.92;
  transition: opacity 0.2s ease;
}

.alt-trust-item:hover {
  opacity: 1;
}

.alt-trust-logo {
  display: block;
  height: 1.5rem;
  width: auto;
  max-width: none;
  object-fit: contain;
  object-position: center;
  filter: none;
}

html[data-theme="dark"] .alt-trust-logo {
  filter: brightness(0) invert(76%) sepia(8%) saturate(548%) hue-rotate(178deg) brightness(93%) contrast(88%);
}

html[data-theme="light"] .alt-trust-logo {
  filter: brightness(0) invert(22%) sepia(24%) saturate(980%) hue-rotate(185deg) brightness(92%) contrast(90%);
}

@media (min-width: 768px) {
  .alt-trust-item {
    height: 2rem;
  }

  .alt-trust-logo {
    height: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .alt-trust-track {
    animation: none;
    flex-wrap: wrap;
    width: 100%;
    max-width: 56rem;
    margin: 0 auto;
    justify-content: center;
    gap: 0.85rem 1.5rem;
    padding: 0 1.25rem;
  }

  .alt-trust-item:nth-child(n + 9) {
    display: none;
  }

  .alt-trust-fade {
    display: none;
  }
}

/* —— Community —— */
.alt-community {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem 3.5rem;
  overflow: hidden;
  container-type: inline-size;
}

@media (min-width: 1024px) {
  .alt-community {
    padding: 5rem 2rem 4.5rem;
  }
}

.alt-community-layout {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 960px) {
  .alt-community-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 2.5rem 3rem;
    align-items: center;
  }
}

.alt-community-intro {
  text-align: center;
  max-width: 37rem;
  margin: 0 auto;
}

@media (min-width: 960px) {
  .alt-community-intro {
    text-align: left;
    max-width: none;
    margin: 0;
  }
}

.alt-community-eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--alt-blue-soft);
}

html[data-theme="light"] .alt-community-eyebrow {
  color: var(--alt-blue);
}

.alt-community-intro h2 {
  margin: 0 0 0.75rem;
  font-family: var(--alt-font-serif);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--alt-fg-strong);
}

.alt-community-body {
  margin: 0 auto 1rem;
  max-width: 36rem;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--alt-muted);
}

@media (min-width: 960px) {
  .alt-community-body {
    margin: 0 0 1.15rem;
    max-width: 28rem;
  }
}

.alt-community-visual {
  min-width: 0;
}

.alt-community-map {
  position: relative;
  height: 320px;
  max-width: 720px;
  margin: 0 auto;
}

@media (min-width: 960px) {
  .alt-community-map {
    max-width: none;
    height: 360px;
    margin: 0;
  }
}

.alt-community-connections {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}

.alt-community-connections path {
  fill: none;
  stroke: color-mix(in srgb, var(--alt-blue-soft) 28%, transparent);
  stroke-width: 1;
  transition: stroke 0.25s ease, stroke-opacity 0.25s ease;
}

.alt-community-connections path.is-lit {
  stroke: #b8ddf5;
  stroke-opacity: 0.75;
}

html[data-theme="light"] .alt-community-connections path.is-lit {
  stroke: #496995;
  stroke-opacity: 0.85;
}

.alt-community-core {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 150px;
  height: 150px;
  z-index: 2;
  filter: drop-shadow(0 10px 24px rgba(8, 16, 28, 0.45));
  pointer-events: auto;
}

.alt-community-core-canvas,
.alt-community-core-fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 64%, transparent 90%);
  mask-image: radial-gradient(circle at 50% 50%, #000 64%, transparent 90%);
}

.alt-community-core-canvas {
  opacity: 0;
  transition: opacity 0.45s ease;
}

.alt-community-core.is-ready .alt-community-core-canvas {
  opacity: 1;
}

.alt-community-core-fallback {
  display: grid;
  place-items: center;
}

.alt-community-core-fallback img {
  width: 54%;
  height: auto;
  opacity: 0.85;
}

.alt-community-core.is-ready .alt-community-core-fallback {
  opacity: 0;
}

.alt-community-cluster {
  position: absolute;
  width: 42%;
  height: 72px;
  z-index: 3;
}

.alt-community-c0,
.alt-community-c1 {
  top: 35px;
}

.alt-community-c2,
.alt-community-c3 {
  top: auto;
  bottom: 35px;
}

.alt-community-c0,
.alt-community-c2 {
  left: 0;
}

.alt-community-c1,
.alt-community-c3 {
  right: 0;
}

.alt-community-pack {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 180px;
  padding: 0.95rem;
  text-align: left;
  background: var(--alt-card);
  border: 1px solid color-mix(in srgb, var(--alt-blue-soft) 18%, transparent);
  border-radius: 0.625rem;
  color: var(--alt-fg);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
  font: inherit;
}

.alt-community-pack:hover,
.alt-community-pack[aria-pressed="true"] {
  border-color: color-mix(in srgb, var(--alt-blue-soft) 55%, transparent);
  background: var(--alt-elevated);
}

.alt-community-pack strong {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
  color: var(--alt-fg-strong);
}

.alt-community-pack small {
  display: inline-flex;
  align-items: center;
  font-size: 0.625rem;
  color: var(--alt-muted);
}

.alt-community-price {
  float: right;
  font-size: 0.625rem;
  color: color-mix(in srgb, var(--alt-blue-soft) 90%, var(--alt-fg));
}

.alt-community-avatar {
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  margin-right: 5px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--alt-blue-soft) 14%, transparent);
  color: var(--alt-blue-soft);
  font-size: 0.5rem;
  font-style: normal;
}

.alt-community-detail {
  min-height: 1.5rem;
  margin: 0.85rem auto 0;
  max-width: 37.5rem;
  text-align: center;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--alt-muted);
}

@media (min-width: 960px) {
  .alt-community-detail {
    margin-left: 0;
    margin-right: 0;
  }
}

.alt-community button:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--alt-blue-soft) 80%, white);
  outline-offset: 4px;
}

@container (max-width: 480px) {
  .alt-community-map {
    height: 345px;
    margin-top: 1.25rem;
  }

  .alt-community-cluster {
    width: 46%;
    height: 88px;
  }

  .alt-community-c0,
  .alt-community-c1 {
    top: 10px;
  }

  .alt-community-c2,
  .alt-community-c3 {
    top: auto;
    bottom: 10px;
  }

  .alt-community-pack {
    width: 100%;
    padding: 0.75rem 0.55rem;
  }

  .alt-community-core {
    top: 50%;
    width: 128px;
    height: 128px;
  }

  .alt-community-detail {
    font-size: 0.6875rem;
  }

  .alt-community-price {
    float: none;
    display: block;
    margin-bottom: 0.35rem;
  }
}

/* —— FAQ —— */
.alt-faq {
  max-width: var(--alt-max);
  margin: 0 auto;
  padding: 7rem 1.5rem 6rem;
  border-top: 1px solid var(--alt-border);
  position: relative;
  z-index: 2;
  background: var(--alt-bg);
}

@media (min-width: 1024px) {
  .alt-faq {
    padding: 9rem 2rem 8rem;
  }
}

.alt-faq-title {
  text-align: center;
  margin: 0 0 3rem;
  font-family: var(--alt-font-serif);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.2;
}

.alt-faq-title em {
  font-style: italic;
  color: var(--alt-muted);
}

.alt-faq-list {
  max-width: 48rem;
  margin: 0 auto;
  border-top: 1px solid var(--alt-border);
}

.alt-faq-item {
  border-bottom: 1px solid var(--alt-border);
}

.alt-faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 0;
  text-align: left;
  font-size: 0.975rem;
  font-weight: 500;
}

.alt-faq-num {
  color: var(--alt-muted);
  font-variant-numeric: tabular-nums;
  min-width: 1.75rem;
}

.alt-faq-q span:nth-child(2) {
  flex: 1;
}

.alt-faq-chevron {
  width: 1.1rem;
  height: 1.1rem;
  transition: transform 0.2s ease;
  opacity: 0.7;
}

.alt-faq-item.open .alt-faq-chevron {
  transform: rotate(180deg);
}

.alt-faq-a {
  display: none;
  padding: 0 0 1.25rem 2.75rem;
  color: var(--alt-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.alt-faq-item.open .alt-faq-a {
  display: block;
}

/* —— Footer —— */
.alt-footer {
  max-width: var(--alt-max);
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

@media (min-width: 1024px) {
  .alt-footer {
    padding: 0 2rem 3rem;
  }
}

.alt-footer-cta {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 4rem 0;
  border-top: 1px solid var(--alt-border);
}

@media (min-width: 768px) {
  .alt-footer-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 5rem 0;
  }
}

.alt-footer-cta h2 {
  margin: 0;
  font-family: var(--alt-font-serif);
  font-weight: 500;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  line-height: 1.2;
}

.alt-footer-cols {
  display: grid;
  gap: 2rem;
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--alt-border);
}

@media (min-width: 768px) {
  .alt-footer-cols {
    grid-template-columns: repeat(3, 1fr);
  }
}

.alt-footer-col h4 {
  margin: 0 0 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--alt-muted);
  font-weight: 500;
}

.alt-footer-col a {
  display: block;
  padding: 0.35rem 0;
  font-size: 0.875rem;
  color: var(--alt-fg);
}

.alt-footer-col a:hover {
  color: var(--alt-fg-strong);
}

.alt-copyright {
  padding-top: 1rem;
  margin: 0;
  font-size: 0.75rem;
  color: color-mix(in srgb, var(--alt-muted) 70%, transparent);
}

.alt-copyright-legal {
  padding-top: 0.35rem;
}

.alt-disclaimer {
  margin-top: 1rem;
  font-size: 0.7rem;
  line-height: 1.55;
  color: color-mix(in srgb, var(--alt-muted) 55%, transparent);
  max-width: 56rem;
}

/* Lang control — match theme icon chrome */
.alt-lang {
  position: relative;
}

.alt-lang-trigger {
  display: inline-flex;
  align-items: center;
}

.alt-lang-panel {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 0.35rem);
  min-width: 8rem;
  padding: 0.35rem;
  background: var(--alt-card);
  border: 1px solid var(--alt-border);
  border-radius: var(--alt-radius);
  z-index: 20;
}

.alt-lang.is-open .alt-lang-panel,
.alt-lang.is-open .theme-menu-panel {
  display: block;
}

.alt-lang-panel button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.5rem 0.65rem;
  border-radius: 0.35rem;
  font-size: 0.8125rem;
  color: var(--alt-fg);
}

.alt-lang-panel button:hover {
  background: var(--alt-elevated);
}