/* ============================================================
   SparkLLM marketing landing page — standalone stylesheet.
   Full redesign around the "your own AI computer" narrative.
   Intentionally independent from the app stylesheet (styles.css)
   so the marketing page can evolve without touching the app UI.
   ============================================================ */

:root {
  color-scheme: light;
  --paper: #f7f8fb;
  --paper-tint: #eef2f7;
  --card: #ffffff;
  --ink: #16181d;
  --ink-soft: #3c424d;
  --muted: #6b7280;
  --line: #e2e7ef;
  --line-strong: #cfd7e4;
  --accent: #3157d5;
  --accent-strong: #2446b8;
  --accent-soft: rgba(49, 87, 213, 0.09);
  --accent-glow: rgba(49, 87, 213, 0.18);
  --warm: #c56b2c;
  --warm-soft: rgba(197, 107, 44, 0.12);
  --green: #1f9c63;
  --green-soft: rgba(31, 156, 99, 0.12);
  --radius-lg: 8px;
  --radius-md: 8px;
  --radius-sm: 6px;
  --shadow-card: 0 1px 2px rgba(22, 24, 29, 0.04), 0 10px 30px rgba(22, 24, 29, 0.06);
  --shadow-pop: 0 2px 6px rgba(22, 24, 29, 0.08), 0 24px 60px rgba(22, 24, 29, 0.12);
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI",
    "Inter", "Helvetica Neue", "Microsoft YaHei", Arial, sans-serif;
}

* { box-sizing: border-box; }

[hidden] {
  display: none !important;
}

html { scroll-behavior: smooth; }

body.landing-body {
  margin: 0;
  font-family: var(--font-sans);
  background:
    linear-gradient(180deg, #fbfcff 0%, var(--paper) 38%, #f4f6fa 100%);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.015em; }
p { margin: 0; }

/* ---------------------------- buttons ---------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease,
    transform 0.12s ease, box-shadow 0.18s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 1px 2px rgba(22, 24, 29, 0.2);
}
.btn-primary:hover { background: #000; box-shadow: 0 4px 14px rgba(22, 24, 29, 0.25); }

.btn-secondary {
  background: var(--accent);
  color: #fff;
}
.btn-secondary:hover { background: var(--accent-strong); }

.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--ink-soft); color: var(--ink); }

.btn-lg { padding: 13px 26px; font-size: 16px; }

/* ------------------------- language switch ------------------------- */

.language-switcher {
  position: relative;
  display: inline-flex;
  z-index: 50;
}

.language-switcher--dropdown .language-switcher-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--card);
  color: var(--muted);
  padding: 5px 10px;
  font: inherit;
  font-size: 12.5px;
  cursor: pointer;
}

.language-switcher--dropdown .language-switcher-trigger:hover {
  color: var(--ink);
  border-color: var(--ink-soft);
}

.language-switcher-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 180px;
  max-height: min(360px, 60vh);
  overflow-y: auto;
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  padding: 6px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.language-switcher-option {
  appearance: none;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  padding: 8px 10px;
  text-align: start;
  cursor: pointer;
}

.language-switcher-option.is-selected,
.language-switcher-option[aria-selected="true"] {
  background: var(--ink);
  color: #fff;
}

.language-switcher-option:hover:not(.is-selected) {
  background: rgba(0, 0, 0, 0.04);
}

/* ------------------------------ nav ------------------------------ */

.landing-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 14px clamp(20px, 5vw, 56px);
  background: rgba(250, 249, 246, 0.86);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid rgba(231, 228, 219, 0.7);
}

.landing-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: block;
}

.landing-nav-links {
  display: flex;
  gap: 24px;
  margin-inline: auto;
}

.landing-nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}
.landing-nav-links a:hover { color: var(--ink); }

.landing-nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ------------------------ signed-in account menu ------------------------ */

.landing-account-wrap {
  position: relative;
  z-index: 60;
}

.landing-account-trigger {
  gap: 8px;
  padding-inline: 10px 12px;
}

.landing-account-trigger__avatar,
.landing-account-menu__avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid transparent;
  font-weight: 700;
  line-height: 1;
}

.landing-account-trigger__avatar {
  width: 24px;
  height: 24px;
  font-size: 11px;
}

.landing-account-trigger__label {
  max-width: 9rem;
  overflow: hidden;
  text-overflow: ellipsis;
}

.landing-account-trigger__chevron {
  font-size: 11px;
  opacity: 0.72;
}

.landing-account-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: min(360px, calc(100vw - 24px));
  background: #eef3fc;
  border: 1px solid rgba(22, 24, 29, 0.08);
  border-radius: 28px;
  box-shadow: var(--shadow-pop);
  padding: 18px 16px 10px;
  overflow: hidden;
}

.landing-account-menu[hidden] {
  display: none;
}

.landing-account-menu__hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 4px 8px 14px;
}

.landing-account-menu__email {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 14px;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.landing-account-menu__avatar {
  width: 72px;
  height: 72px;
  font-size: 28px;
  margin-bottom: 12px;
}

.landing-account-menu__greeting {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 14px;
}

.landing-account-menu__primary {
  width: 100%;
  max-width: 260px;
  border-color: var(--line-strong);
  background: var(--card);
  color: var(--accent);
}

.landing-account-menu__primary:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.landing-account-menu__list {
  background: var(--card);
  border-radius: 18px;
  padding: 6px;
  margin-top: 4px;
}

.landing-account-menu__action {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 11px 12px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  text-decoration: none;
  box-sizing: border-box;
}

.landing-account-menu__action:hover {
  background: rgba(22, 24, 29, 0.04);
}

.landing-account-menu__action--danger {
  color: #c62828;
}

.landing-account-menu__action--danger:hover {
  background: rgba(198, 40, 40, 0.06);
}

.landing-account-menu__action--accent {
  color: var(--accent);
  font-weight: 600;
  justify-content: center;
}

.landing-account-menu__action--accent:hover {
  background: var(--accent-soft);
}

.landing-account-menu__divider {
  height: 1px;
  background: var(--line);
  margin: 4px 8px;
}

/* switch-account sub-view */

.landing-account-menu__switch-hdr {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 4px 12px;
}

.landing-account-menu__back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--ink-soft);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.landing-account-menu__back:hover {
  background: rgba(22, 24, 29, 0.06);
}

.landing-account-menu__switch-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.landing-account-menu__account {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 10px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.landing-account-menu__account:hover {
  background: rgba(22, 24, 29, 0.04);
}

.landing-account-menu__account-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
}

.landing-account-menu__account-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.landing-account-menu__account-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.landing-account-menu__account-sub {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.landing-account-menu__empty {
  padding: 10px 12px;
  text-align: center;
}

/* ------------------------------ layout ------------------------------ */

.landing-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 56px) 40px;
}

.section {
  padding: clamp(64px, 9vw, 110px) 0;
  border-top: 1px solid var(--line);
}

.section-tinted {
  position: relative;
}
.section-tinted::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background: var(--paper-tint);
  z-index: -1;
}

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.section h2 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.18;
  max-width: 21em;
}

.section-lead {
  margin-top: 14px;
  font-size: clamp(15px, 1.8vw, 17.5px);
  color: var(--muted);
  max-width: 36em;
}

/* ------------------------------ hero ------------------------------ */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: clamp(32px, 5vw, 64px);
  padding: clamp(56px, 8vw, 100px) 0 clamp(64px, 9vw, 110px);
  position: relative;
}

/* soft ambient glow behind the hero */
.hero::before,
.hero::after { display: none; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  box-shadow: var(--shadow-card);
  margin: 0 0 22px;
}

.hero-eyebrow .dot,
.mock-status .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px var(--green-soft);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--green-soft); }
  50% { box-shadow: 0 0 0 6px rgba(31, 156, 99, 0.05); }
}

.hero h1 {
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.025em;
}

.hero-sub {
  margin-top: 20px;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--ink-soft);
  max-width: 30em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-hint {
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--muted);
}

.hero-proof {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 28px 0 0;
  padding: 0;
}

.hero-proof li {
  font-size: 13.5px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-proof li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--warm);
  flex: none;
}

/* --------------------------- hero mockup --------------------------- */

.hero-visual {
  position: relative;
  min-height: 420px;
}

.mock-window {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-pop);
  overflow: hidden;
  /* leave room for the floating phone card overlapping bottom-right */
  margin: 0 28px 40px 0;
}

.mock-titlebar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #fcfbf9, #f6f4ef);
}

.mock-dots { display: inline-flex; gap: 6px; }
.mock-dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e3e0d7;
}
.mock-dots i:nth-child(1) { background: #f3766b; }
.mock-dots i:nth-child(2) { background: #f2b53d; }
.mock-dots i:nth-child(3) { background: #4cc25e; }

.mock-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
}

.mock-status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
}

.mock-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mock-bubble {
  max-width: 88%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  line-height: 1.55;
}

.mock-user {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.mock-ai {
  align-self: flex-start;
  background: var(--paper-tint);
  color: var(--ink-soft);
  border-bottom-left-radius: 4px;
  max-width: 64%;
}

.mock-steps {
  list-style: none;
  margin: 0;
  padding: 12px 14px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 9px;
  background: #fdfcfa;
}

.mock-steps li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--ink-soft);
}

.step-check {
  flex: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.step-spinner {
  flex: none;
  width: 14px;
  height: 14px;
  margin: 2px;
  border-radius: 50%;
  border: 2px solid var(--accent-soft);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}

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

.mock-phone {
  position: absolute;
  right: -10px;
  bottom: -34px;
  width: min(230px, 62%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 18px 14px 16px;
  box-shadow: var(--shadow-pop);
}

.mock-phone-notch {
  width: 64px;
  height: 6px;
  border-radius: 999px;
  background: var(--line);
  margin: 0 auto 12px;
}

.mock-phone-label {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-align: center;
  margin-bottom: 10px;
}

.mock-phone-card {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: var(--paper-tint);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-soft);
  line-height: 1.45;
}

.mock-phone-icon { flex: none; font-size: 16px; }

/* ----------------------- "different" section ----------------------- */

.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 44px;
}

.diff-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.diff-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-pop);
}

.diff-num {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--warm);
  margin-bottom: 16px;
}

.diff-card h3 { font-size: 19px; margin-bottom: 10px; }
.diff-card p { font-size: 14.5px; color: var(--muted); }

/* ------------------------- work scenarios ------------------------- */

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 44px;
}

.work-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  box-shadow: var(--shadow-card);
}

.work-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--accent-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.work-card h3 { font-size: 17px; margin-bottom: 8px; }
.work-card p { font-size: 14px; color: var(--muted); }

/* --------------------------- two ways --------------------------- */

.ways-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 44px;
}

.way-card {
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

.way-cloud {
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(47, 84, 224, 0.10), transparent 55%),
    var(--card);
}

.way-local {
  background:
    radial-gradient(120% 140% at 0% 100%, rgba(232, 119, 46, 0.10), transparent 55%),
    var(--card);
}

.way-badge {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.way-cloud .way-badge { background: var(--accent-soft); color: var(--accent); }
.way-local .way-badge { background: var(--warm-soft); color: var(--warm); }

.way-card h3 { font-size: clamp(19px, 2.2vw, 23px); line-height: 1.3; margin-bottom: 12px; }
.way-card > p { font-size: 14.5px; color: var(--muted); }

.way-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.way-points li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

.way-points li::before {
  content: "✓";
  flex: none;
  font-size: 12px;
  font-weight: 700;
  color: var(--green);
}

.ways-note {
  margin-top: 26px;
  text-align: center;
  font-size: 14px;
  color: var(--muted);
}

/* ---------------------------- devices ---------------------------- */

.devices-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 44px;
}

.device-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 24px 20px;
  text-align: center;
}

.device-icon { font-size: 28px; margin-bottom: 12px; }
.device-item h3 { font-size: 15.5px; margin-bottom: 6px; }
.device-item p { font-size: 13px; color: var(--muted); }

/* ---------------------------- privacy ---------------------------- */

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 44px;
}

.privacy-card {
  border-left: 3px solid var(--accent);
  background: var(--card);
  border-radius: var(--radius-md);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  padding: 22px 24px;
}

.privacy-card:nth-child(even) { border-left-color: var(--warm); }

.privacy-card h3 { font-size: 17px; margin-bottom: 8px; }
.privacy-card p { font-size: 14px; color: var(--muted); }

/* ---------------------------- download ---------------------------- */

.section-cta { text-align: center; }
.section-cta h2, .section-cta .section-lead { margin-inline: auto; }

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 48px;
  text-align: left;
}

.download-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}

.download-primary {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow-pop);
}

.download-card h3 { font-size: 18px; margin-bottom: 8px; }
.download-card > p { font-size: 14px; color: var(--muted); }

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.download-note {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--muted);
}

/* ----------------------------- footer ----------------------------- */

.landing-footer {
  border-top: 1px solid var(--line);
  padding: 36px clamp(20px, 5vw, 56px) 48px;
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-tagline { font-size: 14px; color: var(--muted); }

.footer-links { gap: 20px; }
.footer-links a {
  font-size: 13.5px;
  color: var(--muted);
  transition: color 0.15s ease;
}
.footer-links a:hover { color: var(--ink); }

/* --------------------------- responsive --------------------------- */

@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; }
  .hero-visual { max-width: 560px; margin-inline: auto 0; width: 100%; }
  .diff-grid, .work-grid, .download-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .devices-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .landing-nav { gap: 12px; }
  .landing-nav-links { display: none; }
  .landing-nav-actions .btn-ghost { display: none; }
  .landing-account-trigger__label { max-width: 6.5rem; }

  .hero { padding-top: 40px; }
  .hero-visual { min-height: 0; padding-bottom: 64px; }
  .mock-phone { right: 0; bottom: 0; }

  .diff-grid, .work-grid, .ways-grid, .privacy-grid, .download-grid {
    grid-template-columns: 1fr;
  }
  .devices-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .section { padding: 56px 0; }
  .hero-actions .btn-lg { flex: 1 1 auto; }
}

@media (max-width: 420px) {
  .devices-row { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-eyebrow .dot, .mock-status .dot { animation: none; }
  .step-spinner { animation-duration: 2s; }
  .diff-card, .btn { transition: none; }
}

/* ---------------------- 2026-07 agent workspace homepage ---------------------- */

.hero-product {
  position: relative;
  min-height: 510px;
  padding: 18px 18px 92px;
}

.workspace-shell {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  min-height: 390px;
  overflow: hidden;
  border: 1px solid rgba(22, 24, 29, 0.1);
  border-radius: var(--radius-lg);
  background: #ffffff;
  box-shadow: var(--shadow-pop);
}

.workspace-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 16px 10px;
  background: #151820;
}

.rail-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: #ffffff;
  display: grid;
  place-items: center;
}

.rail-logo img {
  width: 24px;
  height: 24px;
}

.workspace-rail span {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.12);
}

.workspace-main {
  min-width: 0;
  background:
    linear-gradient(180deg, #fbfcff, #f4f6fa);
}

.workspace-topbar {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
}

.workspace-topbar strong {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--green);
  white-space: nowrap;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px var(--green-soft);
}

.agent-thread {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.agent-message {
  max-width: 78%;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  line-height: 1.5;
}

.agent-message.user {
  align-self: flex-end;
  background: var(--accent);
  color: #ffffff;
}

.agent-plan {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  overflow: hidden;
}

.agent-plan__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 12.5px;
}

.agent-plan__head strong {
  color: var(--accent);
  font-weight: 700;
}

.agent-plan ul {
  list-style: none;
  padding: 12px 14px 14px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.agent-plan li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.45;
}

.agent-plan li::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--line-strong);
}

.agent-plan li.done::before { background: var(--green); }
.agent-plan li.active::before { background: var(--warm); }

.artifact-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.artifact-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 14px;
}

.artifact-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 4px;
}

.artifact-card strong {
  display: block;
  min-width: 0;
  color: var(--ink);
  font-size: 13.5px;
  overflow-wrap: anywhere;
}

.phone-card,
.cloud-card {
  position: absolute;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow-pop);
}

.phone-card {
  right: 0;
  bottom: 18px;
  width: min(238px, 58%);
  padding: 14px;
}

.phone-notch {
  width: 54px;
  height: 5px;
  border-radius: 999px;
  background: var(--line-strong);
  margin: 0 auto 12px;
}

.phone-card p,
.cloud-card span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 6px;
}

.phone-card strong,
.cloud-card strong {
  display: block;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.35;
}

.phone-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.phone-actions span {
  display: inline-flex;
  justify-content: center;
  padding: 8px 10px;
  border-radius: 6px;
  background: var(--paper-tint);
  color: var(--ink-soft);
  font-size: 12.5px;
  font-weight: 700;
}

.phone-actions span:last-child {
  background: var(--accent);
  color: #ffffff;
}

.cloud-card {
  left: 0;
  bottom: 0;
  width: min(284px, 64%);
  padding: 16px;
  border-left: 3px solid var(--warm);
}

.intro-band {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: start;
}

.system-grid,
.plans-grid,
.task-grid,
.trust-grid {
  display: grid;
  gap: 18px;
  margin-top: 44px;
}

.system-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.system-card,
.plan-card,
.task-card,
.trust-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow-card);
}

.system-card {
  padding: 26px 24px;
}

.card-kicker,
.plan-label,
.task-card span {
  display: inline-block;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.system-card h3,
.plan-card h3,
.task-card h3,
.trust-grid h3 {
  font-size: 19px;
  line-height: 1.28;
  margin-bottom: 10px;
}

.system-card p,
.plan-card p,
.task-card p,
.trust-grid p {
  color: var(--muted);
  font-size: 14.5px;
}

.split-head {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: end;
}

.plans-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
}

.plan-card {
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.plan-card .btn {
  margin-top: auto;
}

.plan-price {
  margin-top: 10px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1;
  font-weight: 750;
  color: var(--ink);
}

.plan-card--pro {
  border-color: rgba(49, 87, 213, 0.42);
  box-shadow: 0 0 0 1px rgba(49, 87, 213, 0.18), var(--shadow-pop);
}

.plan-card ul {
  list-style: none;
  margin: 24px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.plan-card li {
  display: flex;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 14px;
}

.plan-card li::before {
  content: "✓";
  color: var(--green);
  font-weight: 800;
}

.pricing-credit-note {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  padding: 14px 16px;
  color: var(--muted);
  font-size: 14px;
}

.pricing-credit-note strong {
  color: var(--ink);
}

.task-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.task-card {
  padding: 22px 20px;
}

.task-card h3 {
  font-size: 17px;
}

.trust-section {
  border-top: 1px solid var(--line);
}

.trust-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.trust-grid article {
  padding: 24px 22px;
}

.trust-grid h3 {
  font-size: 17px;
}

@media (max-width: 1000px) {
  .system-grid,
  .plans-grid,
  .task-grid,
  .trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro-band,
  .split-head {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .hero-product {
    padding: 0 0 118px;
  }

  .workspace-shell {
    grid-template-columns: 44px minmax(0, 1fr);
    min-height: 360px;
  }

  .workspace-rail {
    padding-inline: 8px;
  }

  .workspace-rail span {
    width: 24px;
    height: 24px;
  }

  .workspace-topbar {
    padding-inline: 12px;
  }

  .agent-thread {
    padding: 14px;
  }

  .agent-message {
    max-width: 96%;
  }

  .artifact-row,
  .system-grid,
  .plans-grid,
  .task-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .phone-card {
    width: min(238px, 72%);
  }

  .cloud-card {
    width: min(280px, 78%);
  }
}