:root {
  --bg: #07080a;
  --bg-secondary: rgba(255,255,255,.02);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-dimmer: #475569;
  --text-nav: #94a3b8;
  --text-nav-hover: #f1f5f9;
  --text-logo: #f1f5f9;
  --border: rgba(255,255,255,.05);
  --border-light: rgba(255,255,255,.06);
  --border-mock: rgba(255,255,255,.08);
  --accent: #4f46e5;
  --accent-light: #818cf8;
  --accent-glow: rgba(79,70,229,.35);
  --mock-bg: rgba(15,17,22,.8);
  --mock-shadow: rgba(0,0,0,.5);
  --mock-shadow-hover: rgba(0,0,0,.6);
  --card-bg: rgba(255,255,255,.04);
  --card-border: rgba(255,255,255,.06);
  --nav-bg: rgba(7,8,10,.85);
  --overlay-bg: rgba(7,8,10,.95);
  --hero-grad-1: rgba(79,70,229,.15);
  --hero-grad-2: rgba(129,140,248,.1);
  --badge-bg: rgba(79,70,229,.15);
  --badge-border: rgba(79,70,229,.25);
  --badge-text: #818cf8;
  --btn-outline-text: #e2e8f0;
  --btn-outline-border: rgba(255,255,255,.12);
  --btn-outline-hover-bg: rgba(255,255,255,.06);
  --btn-outline-hover-border: rgba(255,255,255,.2);
  --feature-even-bg: rgba(255,255,255,.02);
  --m-line-bg: rgba(255,255,255,.06);
  --blocked-bg: rgba(239,68,68,.08);
  --blocked-border: rgba(239,68,68,.15);
  --model-bg: linear-gradient(135deg, rgba(79,70,229,.15), rgba(99,102,241,.1));
  --model-border: rgba(79,70,229,.2);
  --model-text: #c7d2fe;
  --model-hover-bg: linear-gradient(135deg, rgba(79,70,229,.25), rgba(99,102,241,.2));
  --model-hover-border: rgba(79,70,229,.35);
  --nav-scroll-shadow: rgba(0,0,0,.5);
  --hero-feature-bg: rgba(255,255,255,.04);
  --hero-feature-border: rgba(255,255,255,.06);
  --hero-feature-text: #cbd5e1;
  --ai-sent-bg: rgba(79,70,229,.3);
  --focus-text: #f1f5f9;
  --footer-bg: rgba(255,255,255,.02);
  --footer-border: rgba(255,255,255,.05);
  --scroll-text: #64748b;
  --pomo-text: #e2e8f0;
  --moon-opacity: 1;
  --sun-opacity: 0;
}

.light {
  --bg: #f8fafc;
  --bg-secondary: rgba(0,0,0,.02);
  --text: #1e293b;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --text-dimmer: #94a3b8;
  --text-nav: #64748b;
  --text-nav-hover: #0f172a;
  --text-logo: #0f172a;
  --border: rgba(0,0,0,.06);
  --border-light: rgba(0,0,0,.08);
  --border-mock: rgba(0,0,0,.08);
  --accent: #4f46e5;
  --accent-light: #6366f1;
  --accent-glow: rgba(79,70,229,.3);
  --mock-bg: #ffffff;
  --mock-shadow: rgba(0,0,0,.1);
  --mock-shadow-hover: rgba(0,0,0,.15);
  --card-bg: rgba(0,0,0,.03);
  --card-border: rgba(0,0,0,.06);
  --nav-bg: rgba(248,250,252,.85);
  --overlay-bg: rgba(248,250,252,.95);
  --hero-grad-1: rgba(79,70,229,.08);
  --hero-grad-2: rgba(99,102,241,.05);
  --badge-bg: rgba(79,70,229,.08);
  --badge-border: rgba(79,70,229,.2);
  --badge-text: #4f46e5;
  --btn-outline-text: #1e293b;
  --btn-outline-border: rgba(0,0,0,.15);
  --btn-outline-hover-bg: rgba(0,0,0,.04);
  --btn-outline-hover-border: rgba(0,0,0,.25);
  --feature-even-bg: rgba(0,0,0,.02);
  --m-line-bg: rgba(0,0,0,.08);
  --blocked-bg: rgba(239,68,68,.06);
  --blocked-border: rgba(239,68,68,.15);
  --model-bg: linear-gradient(135deg, rgba(79,70,229,.08), rgba(99,102,241,.06));
  --model-border: rgba(79,70,229,.15);
  --model-text: #4338ca;
  --model-hover-bg: linear-gradient(135deg, rgba(79,70,229,.14), rgba(99,102,241,.1));
  --model-hover-border: rgba(79,70,229,.25);
  --nav-scroll-shadow: rgba(0,0,0,.08);
  --hero-feature-bg: rgba(0,0,0,.03);
  --hero-feature-border: rgba(0,0,0,.06);
  --hero-feature-text: #334155;
  --ai-sent-bg: rgba(79,70,229,.2);
  --focus-text: #0f172a;
  --footer-bg: rgba(0,0,0,.02);
  --footer-border: rgba(0,0,0,.06);
  --scroll-text: #94a3b8;
  --pomo-text: #1e293b;
  --moon-opacity: 0;
  --sun-opacity: 1;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 70px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background .3s, color .3s;
}

::selection {
  background: var(--accent);
  color: #fff;
}

/* ── Navbar ── */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s, background .3s;
}

.navbar.scrolled {
  box-shadow: 0 4px 30px var(--nav-scroll-shadow);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-logo);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -.02em;
}

.logo-img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.logo-highlight {
  color: var(--accent-light);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-nav);
  font-size: .85rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all .2s;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--text-nav-hover);
  background: rgba(255,255,255,.06);
}

.light .nav-links a:hover {
  background: rgba(0,0,0,.05);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.theme-btn {
  background: none;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  cursor: pointer;
  padding: 6px;
  color: var(--text-nav);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
  line-height: 1;
}

.theme-btn:hover {
  color: var(--text-nav-hover);
  background: rgba(255,255,255,.06);
}

.light .theme-btn:hover {
  background: rgba(0,0,0,.05);
}

.theme-btn .sun-icon {
  display: block;
  opacity: var(--sun-opacity);
  transition: opacity .3s;
}

.theme-btn .moon-icon {
  display: block;
  opacity: var(--moon-opacity);
  transition: opacity .3s;
  margin-left: -18px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: .3s;
}

/* ── Hero ── */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 100px 24px 60px;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, var(--hero-grad-1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, var(--hero-grad-2) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 780px;
}

.hero-badge {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--badge-text);
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -.03em;
  color: var(--text);
}

.gradient-text {
  background: linear-gradient(135deg, #818cf8, #6366f1, #4f46e5);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 36px;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  color: var(--hero-feature-text);
  padding: 6px 16px;
  background: var(--hero-feature-bg);
  border: 1px solid var(--hero-feature-border);
  border-radius: 100px;
}

.hf-icon {
  font-size: 1rem;
  width: 1.2em;
  text-align: center;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 12px;
  font-size: .95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all .25s;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-alt {
  background: rgba(255,255,255,.06);
  color: #e2e8f0;
  border: 1px solid rgba(255,255,255,.1);
  backdrop-filter: blur(4px);
}

.btn-alt:hover {
  background: rgba(255,255,255,.1);
  transform: translateY(-2px);
}

.light .btn-alt {
  background: rgba(0,0,0,.04);
  color: #1e293b;
  border-color: rgba(0,0,0,.1);
}

.light .btn-alt:hover {
  background: rgba(0,0,0,.08);
}

.btn-outline {
  background: transparent;
  color: var(--btn-outline-text);
  border: 1px solid var(--btn-outline-border);
}

.btn-outline:hover {
  background: var(--btn-outline-hover-bg);
  border-color: var(--btn-outline-hover-border);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  color: var(--scroll-text);
  animation: bounce-down 2s ease-in-out infinite;
}

@keyframes bounce-down {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ── Feature Sections ── */

.feature {
  padding: 100px 24px;
  transition: background .3s;
}

.feature:nth-child(even) {
  background: var(--feature-even-bg);
}

.feature-container {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.feature.right .feature-container {
  direction: rtl;
}

.feature.right .feature-container > * {
  direction: ltr;
}

.feature-number {
  font-size: .8rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .1em;
  margin-bottom: 8px;
}

.feature-text h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -.02em;
}

.feature-text h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.feature-text p {
  color: var(--text-muted);
  font-size: .95rem;
  line-height: 1.8;
}

/* ── Mockup ── */

.feature-visual {
  display: flex;
  justify-content: center;
}

.mockup {
  background: var(--mock-bg);
  border: 1px solid var(--border-mock);
  border-radius: 14px;
  overflow: hidden;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 20px 60px var(--mock-shadow);
  transition: transform .4s ease, box-shadow .4s ease, background .3s, border .3s;
}

.mockup:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 30px 80px var(--mock-shadow-hover);
}

.mockup-bar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  background: rgba(255,255,255,.03);
  border-bottom: 1px solid var(--border-light);
}

.light .mockup-bar {
  background: rgba(0,0,0,.02);
}

.mockup-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
}

.mockup-bar span:nth-child(1) { background: #ef4444; }
.mockup-bar span:nth-child(2) { background: #f59e0b; }
.mockup-bar span:nth-child(3) { background: #22c55e; }

.mockup-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.m-line {
  display: block;
  height: 8px;
  border-radius: 4px;
  background: var(--m-line-bg);
  transition: background .3s;
}

.m-line.l1 { height: 12px; }
.m-line.l2 { height: 8px; }
.m-line.s { width: 60%; }

/* Dashboard mock */
.dashboard-mock { gap: 14px; }
.dash-header { display: flex; align-items: center; gap: 10px; }
.dash-avatar { width: 32px; height: 32px; border-radius: 50%; background: rgba(79,70,229,.3); flex-shrink: 0; }
.dash-greeting { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.dash-cards { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.dash-card { height: 60px; border-radius: 8px; background: var(--card-bg); border: 1px solid var(--card-border); }
.dash-chart { height: 80px; border-radius: 8px; background: var(--card-bg); border: 1px solid var(--card-border); }

/* Pomodoro mock */
.pomo-mock { align-items: center; gap: 16px; padding: 30px 20px; }
.pomo-circle { width: 120px; height: 120px; position: relative; }
.pomo-ring {
  width: 100%; height: 100%; border-radius: 50%;
  border: 4px solid rgba(79,70,229,.3);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.pomo-ring::before {
  content: ''; position: absolute; inset: -4px; border-radius: 50%;
  border: 4px solid transparent;
  border-top-color: #4f46e5;
  border-right-color: #6366f1;
  animation: spin 3s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.pomo-ring span { font-size: 1.5rem; font-weight: 700; color: var(--pomo-text); }
.pomo-controls { display: flex; gap: 10px; }
.pomo-controls span { width: 32px; height: 32px; border-radius: 50%; background: var(--m-line-bg); border: 1px solid var(--border-mock); }
.pomo-streak { display: flex; flex-direction: column; gap: 4px; width: 100%; align-items: center; }

/* Task mock */
.task-mock { gap: 10px; }
.task-input .m-line { height: 36px; border-radius: 8px; background: var(--card-bg); border: 1px solid var(--border-mock); }
.task-list { display: flex; flex-direction: column; gap: 8px; }
.task-item { display: flex; align-items: center; gap: 8px; }
.task-check { width: 16px; height: 16px; border-radius: 4px; border: 2px solid rgba(255,255,255,.15); flex-shrink: 0; }
.light .task-check { border-color: rgba(0,0,0,.2); }
.task-item.done .task-check { background: #22c55e; border-color: #22c55e; }
.task-item.done .m-line { opacity: .35; }
.task-badge { width: 40px; height: 18px; border-radius: 4px; background: rgba(79,70,229,.25); flex-shrink: 0; }

/* Note mock */
.note-mock { flex-direction: row; gap: 12px; min-height: 160px; }
.note-sidebar { width: 60px; display: flex; flex-direction: column; gap: 6px; flex-shrink: 0; }
.note-sidebar .m-line { height: 20px; }
.note-editor { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.note-grade { display: flex; gap: 8px; margin-top: 6px; }
.note-grade span { width: 50%; height: 30px; border-radius: 6px; background: var(--card-bg); border: 1px solid var(--card-border); }

/* Schedule mock */
.sched-mock { gap: 8px; }
.sched-header { display: grid; grid-template-columns: repeat(5,1fr); gap: 4px; }
.sched-header span { height: 14px; border-radius: 4px; background: var(--m-line-bg); }
.sched-header span:first-child { background: rgba(79,70,229,.25); }
.sched-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 4px; }
.sched-grid span { height: 28px; border-radius: 4px; background: var(--card-bg); border: 1px solid var(--card-border); }
.sched-grid span:nth-child(3),
.sched-grid span:nth-child(7),
.sched-grid span:nth-child(13),
.sched-grid span:nth-child(18) { background: rgba(79,70,229,.2); border-color: rgba(79,70,229,.15); }

/* Focus mock */
.focus-mock { align-items: center; gap: 14px; padding: 24px 20px; }
.focus-timer span { font-size: 2rem; font-weight: 700; color: var(--focus-text); letter-spacing: .02em; }
.focus-list { display: flex; flex-direction: column; gap: 6px; width: 100%; }
.blocked {
  font-size: .75rem; color: #ef4444; padding: 4px 10px;
  background: var(--blocked-bg); border: 1px solid var(--blocked-border);
  border-radius: 6px; text-decoration: line-through;
}
.focus-btn span { display: block; width: 100%; height: 32px; border-radius: 8px; background: rgba(239,68,68,.15); border: 1px solid rgba(239,68,68,.2); }

/* Commands mock */
.cmd-mock { gap: 10px; }
.cmd-search .m-line { height: 32px; border-radius: 8px; background: var(--card-bg); border: 1px solid var(--border-mock); }
.cmd-categories { display: flex; gap: 6px; }
.cmd-categories span { height: 22px; flex: 1; border-radius: 6px; background: var(--m-line-bg); }
.cmd-categories span:first-child { background: rgba(79,70,229,.2); }
.cmd-list { display: flex; flex-direction: column; gap: 6px; }
.cmd-item { display: flex; flex-direction: column; gap: 3px; padding: 8px; background: var(--card-bg); border-radius: 6px; }

/* AI mock */
.ai-mock { gap: 10px; min-height: 200px; justify-content: flex-end; }
.ai-msg { display: flex; flex-direction: column; gap: 4px; }
.ai-msg.received { align-items: flex-start; }
.ai-msg.sent { align-items: flex-end; }
.ai-msg .m-line { background: var(--m-line-bg); }
.ai-msg.sent .m-line { background: var(--ai-sent-bg); }
.ai-input { display: flex; gap: 8px; align-items: center; margin-top: 6px; }
.ai-input .m-line { flex: 1; height: 32px; border-radius: 8px; background: var(--card-bg); border: 1px solid var(--border-mock); }
.ai-send { width: 32px; height: 32px; border-radius: 8px; background: var(--accent); flex-shrink: 0; }

/* Python mock */
.py-mock { flex-direction: row; gap: 10px; min-height: 160px; }
.py-sidebar { width: 44px; display: flex; flex-direction: column; gap: 4px; flex-shrink: 0; }
.py-sidebar span { height: 16px; border-radius: 4px; background: var(--m-line-bg); }
.py-content { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.py-code { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 6px; padding: 8px; display: flex; flex-direction: column; gap: 4px; margin-top: 4px; }

/* ── AI Models ── */

.ai-models {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
}

.ai-models h4 {
  font-size: .85rem;
  font-weight: 600;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 12px;
}

.model-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.model-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .8rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 100px;
  background: var(--model-bg);
  border: 1px solid var(--model-border);
  color: var(--model-text);
  transition: all .2s;
}

.cl-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.model-badge[data-company="meta"]     { --clr: #0866FF; }
.model-badge[data-company="openai"]   { --clr: #10A37F; }
.model-badge[data-company="qwen"]     { --clr: #FF6A00; }
.model-badge[data-company="groq"]     { --clr: #A855F7; }
.model-badge[data-company="google"]   { --clr: #4285F4; }
.model-badge[data-company="deepseek"] { --clr: #4FC3F7; }
.model-badge[data-company="mistral"]  { --clr: #6366F1; }
.model-badge[data-company="kimi"]     { --clr: #EC4899; }
.model-badge[data-company="anthropic"]{ --clr: #D97706; }

.model-badge .cl-icon { color: var(--clr); }

.model-badge:hover {
  background: var(--model-hover-bg);
  border-color: var(--model-hover-border);
  transform: translateY(-1px);
}

/* ── Model Modal ── */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
  padding: 24px;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--mock-bg);
  border: 1px solid var(--border-mock);
  border-radius: 20px;
  padding: 40px 36px 36px;
  max-width: 480px;
  width: 100%;
  position: relative;
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
  transform: scale(.92) translateY(10px);
  transition: transform .3s ease;
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
}

.modal-close:hover {
  background: var(--m-line-bg);
  color: var(--text);
}

.modal-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(79,70,229,.2), rgba(99,102,241,.1));
  border: 1px solid rgba(79,70,229,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-light);
  margin-bottom: 20px;
}

.modal h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -.02em;
}

.modal p {
  font-size: .95rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ── Models List Modal ── */

.modal-models {
  max-width: 640px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}

.models-list-content {
  overflow-y: auto;
  padding-right: 4px;
}

.models-list-section {
  margin-bottom: 20px;
}

.models-list-section:last-child {
  margin-bottom: 0;
}

.models-list-section h4 {
  font-size: .85rem;
  font-weight: 600;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 12px;
}

.models-list-content .model-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ── Models Toggle Button ── */

.models-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: .9rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 100px;
  background: linear-gradient(135deg, rgba(79,70,229,.2), rgba(99,102,241,.12));
  border: 1px solid rgba(79,70,229,.25);
  color: var(--accent-light);
  cursor: pointer;
  transition: all .25s;
}

.models-toggle-btn:hover {
  background: linear-gradient(135deg, rgba(79,70,229,.3), rgba(99,102,241,.22));
  border-color: rgba(79,70,229,.4);
  transform: translateY(-2px);
}

/* ── Footer ── */

.footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--footer-border);
  padding: 48px 24px 32px;
  text-align: center;
  transition: background .3s, border .3s;
}

.footer-container {
  max-width: 600px;
  margin: 0 auto;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}


.footer-desc {
  font-size: .85rem;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 20px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: .85rem;
  transition: color .2s;
}

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-copy {
  font-size: .8rem;
  color: var(--text-dimmer);
}

/* ── Responsive ── */

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--overlay-bg);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 12px 24px 20px;
    border-bottom: 1px solid var(--border);
    gap: 2px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 10px 12px;
    font-size: .9rem;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 80px 20px 48px;
    min-height: auto;
  }

  .hero h1 {
    font-size: clamp(1.6rem, 5.5vw, 2.4rem);
  }

  .hero p {
    font-size: .95rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .hero-features {
    gap: 8px;
  }

  .hero-feature {
    font-size: .75rem;
    padding: 4px 10px;
  }

  .hero-scroll {
    display: none;
  }

  .feature-container {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .feature {
    padding: 60px 20px;
  }

  .feature.right .feature-container {
    direction: ltr;
  }

  .feature-text {
    order: 1;
  }

  .feature.right .feature-text {
    order: 1;
  }

  .feature-visual {
    order: 0;
  }

  .feature-text h2 {
    font-size: 1.4rem;
  }

  .feature-text p {
    font-size: .9rem;
  }

  .mockup {
    max-width: 100%;
  }

  .mockup:hover {
    transform: none;
  }

  .ai-models .model-grid {
    justify-content: center;
  }

  .footer {
    padding: 32px 20px 24px;
  }

  .footer-links {
    flex-direction: column;
    gap: 12px;
    align-items: center;
  }

  .modal {
    padding: 32px 24px 28px;
    margin: 12px;
  }

  .modal-models {
    max-height: 85vh;
  }

  .modal p {
    font-size: .9rem;
  }

  .modal h3 {
    font-size: 1.15rem;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 16px;
  }

  .hero {
    padding: 70px 16px 40px;
  }

  .hero h1 {
    font-size: clamp(1.35rem, 6vw, 1.8rem);
  }

  .hero p {
    font-size: .88rem;
    margin-bottom: 24px;
  }

  .hero-badge {
    font-size: .65rem;
    padding: 4px 14px;
  }

  .hero-features {
    gap: 6px;
  }

  .hero-feature {
    font-size: .7rem;
    padding: 3px 8px;
    gap: 4px;
  }

  .hf-icon {
    font-size: .85rem;
  }

  .hero-actions .btn {
    max-width: 220px;
    padding: 8px 18px;
    font-size: .82rem;
    border-radius: 10px;
  }

  .feature {
    padding: 48px 16px;
  }

  .feature-container {
    gap: 24px;
  }

  .feature-text h2 {
    font-size: 1.25rem;
  }

  .feature-text h3 {
    font-size: .88rem;
  }

  .feature-text p {
    font-size: .85rem;
    line-height: 1.7;
  }

  .feature-number {
    font-size: .7rem;
  }

  .mockup-body {
    padding: 14px;
  }

  .pomo-mock {
    padding: 20px 14px;
  }

  .pomo-circle {
    width: 90px;
    height: 90px;
  }

  .pomo-ring span {
    font-size: 1.15rem;
  }

  .focus-mock {
    padding: 18px 14px;
  }

  .focus-timer span {
    font-size: 1.5rem;
  }

  .note-mock {
    min-height: 120px;
  }

  .note-sidebar {
    width: 44px;
  }

  .py-mock {
    min-height: 120px;
  }

  .dash-cards {
    grid-template-columns: 1fr 1fr;
  }

  .dash-card:last-child {
    display: none;
  }

  .sched-header span {
    height: 10px;
  }

  .sched-grid span {
    height: 20px;
  }

  .modal {
    padding: 28px 20px 24px;
    margin: 8px;
    border-radius: 16px;
  }

  .modal h3 {
    font-size: 1.05rem;
  }

  .modal p {
    font-size: .85rem;
  }

  .modal-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    margin-bottom: 16px;
  }

  .modal-close {
    width: 32px;
    height: 32px;
    top: 10px;
    right: 10px;
  }

  .models-toggle-btn {
    font-size: .82rem;
    padding: 8px 18px;
  }

  .model-badge {
    font-size: .72rem;
    padding: 4px 11px;
  }

  .cl-icon {
    width: 12px;
    height: 12px;
  }

  .models-list-section h4 {
    font-size: .75rem;
  }

  .footer {
    padding: 28px 16px 20px;
  }

  .footer-desc {
    font-size: .78rem;
  }

  .footer-links a {
    font-size: .8rem;
  }
}