/* ==========================================================================
   Plasma — Marketing site design system
   Ports the app's monochrome oklch charte graphique 1:1.
   ========================================================================== */

/* ----- Geist font (Vercel open-source, on Google Fonts) ----- */
@import url("https://fonts.googleapis.com/css2?family=Geist+Mono:wght@400;500&family=Geist:wght@300;400;500;600;700&display=swap");

/* ==========================================================================
   Design tokens — mirrored from src/index.css
   ========================================================================== */
:root {
  /* Light theme (default values, same as app :root) */
  --background: oklch(1 0 0);
  --foreground: oklch(0.145 0 0);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.145 0 0);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.145 0 0);
  --primary: oklch(0.205 0 0);
  --primary-foreground: oklch(0.985 0 0);
  --secondary: oklch(0.97 0 0);
  --secondary-foreground: oklch(0.205 0 0);
  --muted: oklch(0.97 0 0);
  --muted-foreground: oklch(0.556 0 0);
  --accent: oklch(0.97 0 0);
  --accent-foreground: oklch(0.205 0 0);
  --destructive: oklch(0.577 0.245 27.325);
  --border: oklch(0.922 0 0);
  --input: oklch(0.922 0 0);
  --ring: oklch(0.708 0 0);
  --radius: 0.625rem;

  color-scheme: light;
}

.dark {
  --background: oklch(0.145 0 0);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.205 0 0);
  --card-foreground: oklch(0.985 0 0);
  --popover: oklch(0.205 0 0);
  --popover-foreground: oklch(0.985 0 0);
  --primary: oklch(0.922 0 0);
  --primary-foreground: oklch(0.205 0 0);
  --secondary: oklch(0.269 0 0);
  --secondary-foreground: oklch(0.985 0 0);
  --muted: oklch(0.269 0 0);
  --muted-foreground: oklch(0.708 0 0);
  --accent: oklch(0.269 0 0);
  --accent-foreground: oklch(0.985 0 0);
  --destructive: oklch(0.704 0.191 22.216);
  --border: oklch(1 0 0 / 10%);
  --input: oklch(1 0 0 / 15%);
  --ring: oklch(0.556 0 0);

  color-scheme: dark;
}

/* ==========================================================================
   Reset / base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
  font-family: "Geist", system-ui, -apple-system, sans-serif;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  font-feature-settings: "cv11", "ss01";
  transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection {
  background: color-mix(in oklch, var(--primary) 22%, transparent);
}

/* Custom scrollbar (matches app feel) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: color-mix(in oklch, var(--muted-foreground) 30%, transparent);
  border-radius: 9999px;
  border: 3px solid var(--background);
}
::-webkit-scrollbar-thumb:hover {
  background: color-mix(in oklch, var(--muted-foreground) 50%, transparent);
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section-eyebrow {
  display: inline-block;
  font-family: "Geist Mono", monospace;
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted-foreground);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--muted-foreground);
  max-width: 560px;
  margin: 0 0 56px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: calc(var(--radius) * 0.8);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background-color 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  position: relative;
  overflow: hidden;
  background: var(--primary);
  color: var(--primary-foreground);
  box-shadow: 0 1px 2px color-mix(in oklch, var(--foreground) 8%, transparent);
}
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: -60%;
  width: 40%;
  background: linear-gradient(105deg, transparent, color-mix(in oklch, var(--primary-foreground) 16%, transparent), transparent);
  transform: skewX(-20deg);
  transition: left 0.5s ease;
  pointer-events: none;
}
.btn-primary:hover::after { left: 130%; }
.btn-primary:hover { background: color-mix(in oklch, var(--primary) 88%, var(--foreground)); }

.btn-secondary {
  background: var(--secondary);
  color: var(--secondary-foreground);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: color-mix(in oklch, var(--secondary) 80%, var(--foreground)); }

.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.btn[disabled]:hover { transform: none; }
.btn-secondary[disabled]:hover { background: var(--secondary); }

.btn-ghost {
  color: var(--foreground);
}
.btn-ghost:hover { background: var(--secondary); }

.btn-lg { padding: 14px 26px; font-size: 0.95rem; }

/* ==========================================================================
   Nav bar
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: color-mix(in oklch, var(--background) 72%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background-color 0.3s ease;
}
.nav.scrolled {
  border-bottom-color: var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
}
.brand-logo {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  flex-shrink: 0;
  display: block;
  object-fit: cover;
}

.hero-logo {
  width: 84px;
  height: 84px;
  border-radius: 20px;
  margin: 0 auto 28px;
  display: block;
  filter: drop-shadow(0 8px 28px color-mix(in oklch, var(--foreground) 18%, transparent));
  animation: logo-rise 0.8s cubic-bezier(0.16,1,0.3,1) both;
}
@keyframes logo-rise {
  from { opacity: 0; transform: translateY(16px) scale(0.94); }
  to   { opacity: 1; transform: none; }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--muted-foreground);
  transition: color 0.15s ease;
}
.nav-links a:hover { color: var(--foreground); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-toggle {
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  border-radius: calc(var(--radius) * 0.8);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted-foreground);
  border: 1px solid var(--border);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.lang-toggle:hover { background: var(--secondary); color: var(--foreground); }

.theme-toggle {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: calc(var(--radius) * 0.8);
  color: var(--muted-foreground);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.theme-toggle:hover { background: var(--secondary); color: var(--foreground); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun { display: none; }
.dark .theme-toggle .icon-sun { display: block; }
.dark .theme-toggle .icon-moon { display: none; }

.mobile-menu-btn {
  display: none;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: calc(var(--radius) * 0.8);
  color: var(--foreground);
}
.mobile-menu-btn:hover { background: var(--secondary); }

@media (max-width: 820px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: grid; }
  .nav-actions .btn-primary { display: none; }
  /* dropdown */
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--background);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    z-index: 60;
  }
}

/* ==========================================================================
   HERO — animated orbs + grid + vignette + shimmer title
   (ported from src/index.css & LandingScreen.tsx)
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.landing-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  pointer-events: none;
  will-change: transform;
}
.dark .landing-orb { opacity: 0.35; filter: blur(90px); }

.landing-orb-1 { width: 500px; height: 500px; background: oklch(0.75 0 0); top: -10%; left: -8%; animation: orb-float-1 12s ease-in-out infinite; }
.landing-orb-2 { width: 400px; height: 400px; background: oklch(0.7 0 0); top: 50%; right: -10%; animation: orb-float-2 14s ease-in-out infinite; }
.landing-orb-3 { width: 350px; height: 350px; background: oklch(0.72 0 0); bottom: -5%; left: 30%; animation: orb-float-3 13s ease-in-out infinite; }
.landing-orb-4 { width: 280px; height: 280px; background: oklch(0.8 0 0); top: 20%; right: 20%; animation: orb-float-4 16s ease-in-out infinite; }
.landing-orb-5 { width: 200px; height: 200px; background: oklch(0.68 0 0); top: 60%; left: 10%; animation: orb-float-5 10s ease-in-out infinite; }

.dark .landing-orb-1 { background: oklch(0.22 0 0); }
.dark .landing-orb-2 { background: oklch(0.18 0 0); }
.dark .landing-orb-3 { background: oklch(0.2 0 0); }
.dark .landing-orb-4 { background: oklch(0.25 0 0); }
.dark .landing-orb-5 { background: oklch(0.16 0 0); }

@keyframes orb-float-1 {
  0%,100% { transform: translate(0,0) scale(1); }
  25%     { transform: translate(160px,120px) scale(1.15); }
  50%     { transform: translate(80px,200px) scale(0.95); }
  75%     { transform: translate(-60px,130px) scale(1.08); }
}
@keyframes orb-float-2 {
  0%,100% { transform: translate(0,0) scale(1); }
  25%     { transform: translate(-120px,-140px) scale(1.12); }
  50%     { transform: translate(-180px,-80px) scale(0.9); }
  75%     { transform: translate(-80px,-150px) scale(1.06); }
}
@keyframes orb-float-3 {
  0%,100% { transform: translate(0,0) scale(1); }
  33%     { transform: translate(140px,-100px) scale(1.15); }
  66%     { transform: translate(-80px,-140px) scale(0.88); }
}
@keyframes orb-float-4 {
  0%,100% { transform: translate(0,0) scale(1); }
  30%     { transform: translate(-100px,120px) scale(1.1); }
  60%     { transform: translate(60px,160px) scale(0.92); }
}
@keyframes orb-float-5 {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(160px,-80px) scale(1.2); }
}

.landing-grid-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(oklch(0 0 0 / 4%) 1px, transparent 1px),
    linear-gradient(90deg, oklch(0 0 0 / 4%) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 60% 60% at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at center, black 20%, transparent 70%);
}
.dark .landing-grid-overlay {
  background-image:
    linear-gradient(oklch(1 0 0 / 4%) 1px, transparent 1px),
    linear-gradient(90deg, oklch(1 0 0 / 4%) 1px, transparent 1px);
}

.landing-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 70% 70% at center, transparent 40%, oklch(1 0 0 / 20%) 100%);
}
.dark .landing-vignette {
  background: radial-gradient(ellipse 70% 70% at center, transparent 40%, oklch(0.145 0 0 / 40%) 100%);
}

/* Shimmer title */
.landing-title {
  background: linear-gradient(
    90deg,
    oklch(0.32 0 0) 0%, oklch(0.32 0 0) 30%,
    oklch(0.58 0 0) 50%,
    oklch(0.32 0 0) 70%, oklch(0.32 0 0) 100%
  );
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: title-shimmer 18s ease-in-out infinite;
}
.dark .landing-title {
  background: linear-gradient(
    90deg,
    oklch(0.62 0 0) 0%, oklch(0.62 0 0) 30%,
    oklch(0.88 0 0) 50%,
    oklch(0.62 0 0) 70%, oklch(0.62 0 0) 100%
  );
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: title-shimmer 18s ease-in-out infinite;
}
@keyframes title-shimmer {
  0%   { background-position: 100% 50%; }
  50%  { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
.hero-title {
  font-size: clamp(3.5rem, 11vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  margin-bottom: 24px;
}
.hero-tagline {
  font-size: clamp(1.125rem, 2.5vw, 1.4rem);
  color: var(--muted-foreground);
  font-weight: 400;
  max-width: 560px;
  margin: 0 auto 12px;
  letter-spacing: -0.01em;
}
.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 9999px;
  background: var(--secondary);
  border: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--muted-foreground);
  margin-bottom: 28px;
}
.hero-pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: oklch(0.72 0 0.15 145);
  box-shadow: 0 0 0 3px color-mix(in oklch, oklch(0.72 0 0.15 145) 22%, transparent);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity: 1; }
  50%     { opacity: 0.5; }
}

.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 36px;
}

@media (prefers-reduced-motion: reduce) {
  .landing-orb, .landing-title, .hero-pill .dot { animation: none; }
}

/* ==========================================================================
   Real screenshot (theme-switched)
   ========================================================================== */
.screenshot-wrap {
  position: relative;
  z-index: 10;
  margin-top: 72px;
  perspective: 2000px;
}
.screenshot-frame {
  position: relative;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.4);
  overflow: hidden;
  background: var(--card);
  box-shadow:
    0 1px 3px color-mix(in oklch, var(--foreground) 8%, transparent),
    0 20px 60px -20px color-mix(in oklch, var(--foreground) 30%, transparent),
    0 40px 120px -40px color-mix(in oklch, var(--foreground) 22%, transparent);
  transform: rotateX(2deg);
  transform-origin: center top;
}
.screenshot-frame .shot {
  display: block;
  width: 100%;
  height: auto;
}
/* Light theme shows the light screenshot; dark shows the dark one.
   Scoped under .screenshot-frame to outrank the .screenshot-frame .shot
   { display: block } base rule (same-source-order tie was unreliable). */
.screenshot-frame .shot-dark { display: none; }
.dark .screenshot-frame .shot-dark { display: block; }
.dark .screenshot-frame .shot-light { display: none; }

/* ==========================================================================
   Bento — deep workflow features
   ========================================================================== */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.bento-card {
  grid-column: span 3;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.4);
  background: var(--card);
  transition: border-color 0.2s ease, transform 0.2s ease;
  position: relative;
  overflow: hidden;
}
.bento-card:hover {
  border-color: color-mix(in oklch, var(--muted-foreground) 35%, transparent);
  transform: translateY(-2px);
}
/* large cards span the full row on wide screens */
.bento-card.bento-lg { grid-column: span 6; }
.bento-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 30px 30px 32px;
}
/* left text block (icon + title side-by-side, then description) */
.bento-text {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.bento-head {
  display: flex;
  align-items: center;
  gap: 14px;
}
.bento-head .feature-icon { margin-bottom: 0; flex-shrink: 0; }
.bento-card h3 {
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  margin: 0;
}
.bento-text > p {
  color: var(--muted-foreground);
  font-size: 0.96rem;
  line-height: 1.65;
  margin: 0;
  max-width: 640px;
}
@media (min-width: 820px) {
  .bento-card.bento-lg .bento-body {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 36px;
  }
}
@media (max-width: 820px) {
  .bento { grid-template-columns: 1fr; }
  .bento-card, .bento-card.bento-lg { grid-column: span 1; }
}

/* ---- mini badges (plan mode) ---- */
.badge-row { display: flex; gap: 8px; flex-wrap: wrap; }
.mini-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 500;
  border: 1px solid var(--border);
}
.mini-badge.amber { border-color: oklch(0.77 0.16 70 / 35%); color: oklch(0.7 0.16 60); background: oklch(0.77 0.16 70 / 8%); }
.dark .mini-badge.amber { border-color: oklch(0.75 0.16 70 / 40%); color: oklch(0.78 0.16 70); }
.mini-badge.violet { border-color: oklch(0.62 0.2 300 / 35%); color: oklch(0.55 0.2 300); background: oklch(0.62 0.2 300 / 8%); }
.dark .mini-badge.violet { border-color: oklch(0.7 0.18 300 / 45%); color: oklch(0.74 0.18 300); }

/* ---- todo demo ---- */
.todo-demo {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 0.9);
  padding: 14px 16px;
  background: color-mix(in oklch, var(--background) 60%, var(--card));
}
.todo-demo li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.86rem;
}
.todo-demo li .td-check {
  width: 16px; height: 16px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--primary);
  color: var(--primary-foreground);
  font-size: 9px;
  flex-shrink: 0;
}
.todo-demo li .td-check::before { content: "✓"; }
.todo-demo li.done { color: var(--muted-foreground); text-decoration: line-through; text-decoration-color: color-mix(in oklch, var(--muted-foreground) 50%, transparent); }
.todo-demo li .td-spinner {
  width: 14px; height: 14px; border-radius: 50%;
  border: 1.5px solid color-mix(in oklch, var(--foreground) 22%, transparent);
  border-top-color: var(--foreground);
  animation: run-spin 0.7s linear infinite;
  flex-shrink: 0;
}
.todo-demo li.active { font-weight: 500; }
.todo-demo li .td-dot {
  width: 14px; height: 14px; border-radius: 50%;
  border: 1.5px solid var(--border);
  flex-shrink: 0;
}
.todo-demo li.pending { color: var(--muted-foreground); }

/* ---- permission demo ---- */
.perm-demo {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 0.9);
  padding: 14px 16px;
  background: color-mix(in oklch, var(--background) 60%, var(--card));
}
.perm-row { display: inline-flex; align-items: center; gap: 9px; font-size: 0.83rem; }
.perm-row code {
  font-family: "Geist Mono", monospace;
  font-size: 0.8em;
  color: var(--secondary-foreground);
}
.perm-ic {
  width: 18px; height: 18px; border-radius: 5px;
  display: grid; place-items: center;
  font-size: 10px; font-weight: 700;
  flex-shrink: 0;
}
.perm-ic.allow { background: oklch(0.72 0.16 145 / 14%); color: oklch(0.5 0.16 145); }
.dark .perm-ic.allow { color: oklch(0.78 0.16 145); }
.perm-ic.deny { background: oklch(0.65 0.2 25 / 14%); color: oklch(0.5 0.22 25); }
.dark .perm-ic.deny { color: oklch(0.72 0.2 25); }

/* ---- ask demo ---- */
.ask-demo {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 0.9);
  padding: 14px;
  background: color-mix(in oklch, var(--background) 60%, var(--card));
}
.ask-q { font-size: 0.86rem; font-weight: 500; margin-bottom: 4px; }
.ask-opt {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 0.7);
  font-size: 0.84rem;
}
.ask-opt.recommended { border-color: var(--foreground); font-weight: 500; }
.ask-tag {
  font-size: 0.64rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: 5px;
  background: var(--primary);
  color: var(--primary-foreground);
}
.ask-filler { width: 12px; height: 12px; border-radius: 50%; border: 1.5px solid var(--border); }

/* ---- goal demo ---- */
.goal-demo {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 0.9);
  padding: 14px 16px;
  background: color-mix(in oklch, var(--background) 60%, var(--card));
}
.goal-demo li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.86rem;
}
.goal-demo li .gc-check {
  width: 16px; height: 16px; border-radius: 50%;
  display: grid; place-items: center;
  background: oklch(0.72 0.16 145 / 16%);
  color: oklch(0.5 0.16 145);
  font-size: 9px;
  flex-shrink: 0;
}
.dark .goal-demo li .gc-check { color: oklch(0.78 0.16 145); }
.goal-demo li .gc-check::before { content: "✓"; }
.goal-demo li.pass { color: var(--foreground); }
.goal-demo li .gc-spinner {
  width: 14px; height: 14px; border-radius: 50%;
  border: 1.5px solid color-mix(in oklch, var(--foreground) 22%, transparent);
  border-top-color: var(--foreground);
  animation: run-spin 0.7s linear infinite;
  flex-shrink: 0;
}
.goal-demo li.run { font-weight: 500; }

/* ---- research demo ---- */
.research-demo {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 0.9);
  padding: 14px 16px;
  background: color-mix(in oklch, var(--background) 60%, var(--card));
}
.research-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
}
.research-row code {
  font-family: "Geist Mono", monospace;
  font-size: 0.85em;
  color: var(--secondary-foreground);
}
.rx-tag {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  flex-shrink: 0;
}
.rx-tag.keep {
  color: oklch(0.5 0.16 145);
  background: oklch(0.72 0.16 145 / 14%);
}
.dark .rx-tag.keep { color: oklch(0.78 0.16 145); }
.rx-tag.revert {
  color: oklch(0.5 0.22 25);
  background: oklch(0.65 0.2 25 / 14%);
}
.dark .rx-tag.revert { color: oklch(0.72 0.2 25); }

/* ==========================================================================
   Autonomous modes — numbered pipeline (distinct from bento)
   ========================================================================== */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.mode-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 30px 26px 26px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.4);
  background: var(--card);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.mode-card:hover {
  border-color: color-mix(in oklch, var(--muted-foreground) 35%, transparent);
  transform: translateY(-2px);
}
.mode-num {
  position: absolute;
  top: 10px;
  right: 16px;
  font-family: "Geist Mono", monospace;
  font-size: 2.75rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--foreground);
  opacity: 0.06;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.mode-card:hover .mode-num { opacity: 0.14; }
.mode-accent {
  width: 30px;
  height: 3px;
  border-radius: 999px;
}
.mode-accent.amber { background: oklch(0.75 0.16 70); }
.mode-accent.goal { background: oklch(0.72 0.16 145); }
.mode-accent.research { background: oklch(0.7 0.18 300); }
.mode-card .feature-icon { margin-bottom: 2px; }
.mode-card h3 {
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  margin: 0;
}
.mode-desc {
  color: var(--muted-foreground);
  font-size: 0.93rem;
  line-height: 1.65;
  margin: 0;
  flex: 1;
}
.mode-divider {
  height: 1px;
  background: var(--border);
  margin: 2px 0;
}

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

/* ==========================================================================
   Features grid
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.4);
  overflow: hidden;
}
.feature {
  background: var(--background);
  padding: 32px 28px;
  transition: background-color 0.2s ease;
}
.feature:hover { background: var(--secondary); }
.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: calc(var(--radius) * 0.8);
  background: var(--secondary);
  display: grid;
  place-items: center;
  color: var(--foreground);
  margin-bottom: 18px;
  border: 1px solid var(--border);
  transition: transform 0.25s cubic-bezier(0.16,1,0.3,1), background-color 0.2s ease;
}
.feature:hover .feature-icon { background: var(--background); transform: translateY(-2px) scale(1.05); }
.feature-icon svg { width: 20px; height: 20px; }
.feature h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
.feature p {
  font-size: 0.9rem;
  color: var(--muted-foreground);
  margin: 0;
  line-height: 1.6;
}

@media (max-width: 900px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .features-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   Tech stack
   ========================================================================== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.tech-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--card);
  transition: border-color 0.2s ease, transform 0.2s ease;
  text-align: center;
}
.tech-card:hover {
  border-color: color-mix(in oklch, var(--muted-foreground) 40%, transparent);
  transform: translateY(-2px);
}
.tech-card .tech-name { font-size: 0.9rem; font-weight: 600; }
.tech-card .tech-role { font-size: 0.78rem; color: var(--muted-foreground); margin-top: 4px; }

@media (max-width: 700px) { .tech-grid { grid-template-columns: repeat(2, 1fr); } }

/* spinner keyframe (used by todo-demo + bento) */
@keyframes run-spin { to { transform: rotate(360deg); } }

/* ==========================================================================
   Misc utilities
   ========================================================================== */
.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-subtitle.center { text-align: center; }
.section-eyebrow.center { display: block; }

.prerequisite {
  text-align: center;
  margin-top: 32px;
  font-size: 0.85rem;
  color: var(--muted-foreground);
}
.prerequisite a { text-decoration: underline; }
.prerequisite code { font-family: "Geist Mono", monospace; font-size: 0.85em; }

/* ==========================================================================
   Powered-by strip
   ========================================================================== */
.powered-section { padding: 56px 0; }
.powered {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 28px 32px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.6);
  background: color-mix(in oklch, var(--secondary) 55%, transparent);
}
.powered-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}
.powered-body { display: flex; flex-direction: column; gap: 6px; }
.powered-name {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--foreground);
  transition: color 0.15s ease;
}
.powered-name:hover { color: var(--muted-foreground); }
.powered-body p {
  margin: 4px 0 0;
  font-size: 0.92rem;
  color: var(--muted-foreground);
  max-width: 520px;
  line-height: 1.6;
}
@media (min-width: 700px) {
  .powered { flex-direction: row; align-items: center; gap: 28px; flex-wrap: wrap; }
  .powered-label { flex-shrink: 0; }
}

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 2);
  padding: 64px 48px;
  text-align: center;
  background: var(--card);
  margin-top: 72px;
}
.cta h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: 14px; }
.cta p { color: var(--muted-foreground); margin: 0 auto 32px; max-width: 480px; }
.cta .landing-orb { opacity: 0.25; }
.dark .cta .landing-orb { opacity: 0.3; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-brand { max-width: 280px; }
.footer-brand p { color: var(--muted-foreground); font-size: 0.875rem; margin-top: 12px; }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-col h4 { font-size: 0.8rem; color: var(--muted-foreground); font-weight: 500; margin-bottom: 14px; letter-spacing: 0.02em; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { font-size: 0.875rem; color: var(--foreground); transition: color 0.15s ease; }
.footer-col a:hover { color: var(--muted-foreground); }
.footer-soon { display: inline-flex; align-items: center; gap: 6px; font-size: 0.875rem; color: var(--muted-foreground); }
.soon-tag {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 999px;
  color: var(--muted-foreground);
  background: color-mix(in oklch, var(--muted-foreground) 18%, transparent);
}
.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: var(--muted-foreground);
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  [data-stagger] > * { opacity: 1; animation: none; }
  .platform-card--loading::after { animation: none; }
  .scroll-progress { display: none; }
}

/* ==========================================================================
   Platform badges (download)
   ========================================================================== */
.platform-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.platform-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 140px;
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.2);
  background: var(--card);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.platform-card:not(.disabled):not(.platform-card--loading):hover {
  border-color: var(--muted-foreground);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px -12px color-mix(in oklch, var(--foreground) 22%, transparent);
}
.platform-card svg { width: 28px; height: 28px; transition: transform 0.25s cubic-bezier(0.16,1,0.3,1); }
.platform-card:not(.disabled):not(.platform-card--loading):hover svg { transform: scale(1.12); }
.platform-card .p-name { font-weight: 600; font-size: 0.9rem; }
.platform-card .p-sub { font-size: 0.75rem; color: var(--muted-foreground); }
.platform-card .p-version {
  margin-top: 2px;
  font-family: "Geist Mono", monospace;
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--muted-foreground);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 9px;
  opacity: 0;
  transform: translateY(4px) scale(0.9);
  transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.16,1,0.3,1), color 0.2s ease, border-color 0.2s ease;
}
.platform-card .p-version.loaded { opacity: 1; transform: none; }
.platform-card:hover .p-version.loaded { color: var(--foreground); border-color: var(--muted-foreground); }
.platform-card--loading { opacity: 0.75; pointer-events: none; overflow: hidden; }
.platform-card--loading::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 30%, color-mix(in oklch, var(--foreground) 8%, transparent) 50%, transparent 70%);
  background-size: 200% 100%;
  animation: card-shimmer 1.4s linear infinite;
}
@keyframes card-shimmer {
  from { background-position: 150% 0; }
  to   { background-position: -50% 0; }
}
.platform-card.disabled { opacity: 0.55; cursor: not-allowed; }
.platform-card.disabled:hover { border-color: var(--border); transform: none; }
.platform-card .p-soon {
  margin-top: 2px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
  color: var(--muted-foreground);
  background: color-mix(in oklch, var(--muted-foreground) 18%, transparent);
}

/* ==========================================================================
   Scroll progress bar + scrollspy nav + staggered reveals
   ========================================================================== */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 100;
  background: var(--foreground);
  transform-origin: left center;
  transform: scaleX(0);
  pointer-events: none;
}

.nav-links a { position: relative; }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1.5px;
  background: var(--foreground);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s cubic-bezier(0.16,1,0.3,1);
}
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--foreground); }

/* Staggered group reveals — children cascade in, then release the animation
   (via .stagger-done) so their own hover transforms stay responsive. */
[data-stagger] > * { opacity: 0; }
[data-stagger].in > * {
  animation: stagger-in 0.65s cubic-bezier(0.16,1,0.3,1) both;
  animation-delay: var(--d, 0ms);
}
[data-stagger] > .stagger-done { animation: none; opacity: 1; }
@keyframes stagger-in {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}