/* =========================================
   SAKUTARI.GE — Design System & Styles
   Palette: Warm Georgian — terracotta, sand, cream
   ========================================= */

:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #f9f6f0;
  --color-surface: #faf8f3;
  --color-surface-2: #fcfaf6;
  --color-surface-offset: #f2ede3;
  --color-surface-offset-2: #ebe4d8;
  --color-divider: #ddd5c6;
  --color-border: #d0c8b8;

  /* Text */
  --color-text: #2a2218;
  --color-text-muted: #7a7060;
  --color-text-faint: #b8b0a0;
  --color-text-inverse: #f9f6f0;

  /* Primary — Terracotta */
  --color-primary: #b85c38;
  --color-primary-hover: #9e4a2b;
  --color-primary-active: #7d3920;
  --color-primary-highlight: #f0ddd4;

  /* Accent — warm sand */
  --color-accent: #c49a6c;
  --color-accent-hover: #a87d52;

  /* Success, Error */
  --color-success: #4a7c3f;
  --color-error: #c0392b;

  /* Typography */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(42,34,24,0.07);
  --shadow-md: 0 4px 14px rgba(42,34,24,0.10);
  --shadow-lg: 0 12px 32px rgba(42,34,24,0.14);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Transitions */
  --trans: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme='dark'] {
  --color-bg: #181410;
  --color-surface: #1e1a15;
  --color-surface-2: #231f19;
  --color-surface-offset: #27221b;
  --color-surface-offset-2: #2c271f;
  --color-divider: #342d24;
  --color-border: #403830;
  --color-text: #e8e0d0;
  --color-text-muted: #8a8070;
  --color-text-faint: #5a5248;
  --color-text-inverse: #181410;
  --color-primary: #d4764e;
  --color-primary-hover: #e08860;
  --color-primary-active: #c06040;
  --color-primary-highlight: #3d2518;
  --color-accent: #d4a870;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #181410;
    --color-surface: #1e1a15;
    --color-surface-2: #231f19;
    --color-surface-offset: #27221b;
    --color-surface-offset-2: #2c271f;
    --color-divider: #342d24;
    --color-border: #403830;
    --color-text: #e8e0d0;
    --color-text-muted: #8a8070;
    --color-text-faint: #5a5248;
    --color-text-inverse: #181410;
    --color-primary: #d4764e;
    --color-primary-hover: #e08860;
    --color-primary-active: #c06040;
    --color-primary-highlight: #3d2518;
    --color-accent: #d4a870;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
    --shadow-md: 0 4px 14px rgba(0,0,0,0.35);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.45);
  }
}

/* =========================================
   BASE RESET
   ========================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  transition: background var(--trans), color var(--trans);
}
img { display: block; max-width: 100%; height: auto; }
h1,h2,h3,h4,h5,h6 { text-wrap: balance; line-height: 1.15; font-family: var(--font-display); }
p, li { text-wrap: pretty; max-width: 68ch; }
a, button, [role='button'] {
  transition: color var(--trans), background var(--trans), border-color var(--trans), box-shadow var(--trans), opacity var(--trans);
}
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
.hidden { display: none !important; }

/* =========================================
   LAYOUT UTILITIES
   ========================================= */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-16));
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  padding: 0.65rem 1.5rem;
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
  cursor: pointer;
  line-height: 1;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-lg { padding: 0.85rem 2rem; font-size: var(--text-base); }
.btn-full { width: 100%; }

/* =========================================
   HEADER / NAV
   ========================================= */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow var(--trans), background var(--trans);
}
.header.scrolled { box-shadow: var(--shadow-sm); }
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}
.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.nav-lang {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
  background: var(--color-surface-offset);
  border-radius: var(--radius-full);
  padding: 3px;
}
.lang-btn {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  transition: all var(--trans);
}
.lang-btn:hover { color: var(--color-text); }
.lang-btn.active { background: var(--color-primary); color: #fff; }
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.theme-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
}
.theme-btn:hover { color: var(--color-text); background: var(--color-surface-offset); }

/* =========================================
   HERO
   ========================================= */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(24,16,8,0.75) 0%,
    rgba(24,16,8,0.5) 50%,
    rgba(24,16,8,0.2) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-24);
  max-width: 680px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(196,154,108,0.15);
  border: 1px solid rgba(196,154,108,0.35);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}
.hero-title {
  font-size: var(--text-3xl);
  font-weight: 900;
  color: #fff;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}
.text-accent { color: var(--color-accent); }
.hero-sub {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.80);
  max-width: 520px;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}
.hero-ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
}
.hero-ctas .btn-ghost {
  color: rgba(255,255,255,0.85);
  border-color: rgba(255,255,255,0.35);
}
.hero-ctas .btn-ghost:hover {
  border-color: rgba(255,255,255,0.7);
  color: #fff;
}
.hero-stats {
  display: flex;
  gap: var(--space-8);
  align-items: center;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 900;
  color: #fff;
  line-height: 1;
}
.stat-label { font-size: var(--text-xs); color: rgba(255,255,255,0.60); letter-spacing: 0.06em; text-transform: uppercase; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.2); }
.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.hero-scroll-hint span {
  display: block;
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  30% { opacity: 1; }
  100% { opacity: 0; transform: scaleY(1); transform-origin: top; }
}

/* =========================================
   SECTIONS
   ========================================= */
.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}
.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.section-label--light { color: rgba(255,255,255,0.7); }
.section-title {
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-10);
  max-width: 620px;
}

/* =========================================
   PROBLEM SECTION
   ========================================= */
.section-problem { background: var(--color-surface); }
.pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-5);
}
.pain-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: box-shadow var(--trans), transform var(--trans);
}
.pain-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.pain-icon { font-size: 2rem; margin-bottom: var(--space-4); }
.pain-card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}
.pain-card p { font-size: var(--text-sm); color: var(--color-text-muted); max-width: none; }

/* =========================================
   HOW IT WORKS
   ========================================= */
.how-tabs {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
  background: var(--color-surface-offset);
  padding: 4px;
  border-radius: var(--radius-full);
  width: fit-content;
}
.tab-btn {
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 8px 24px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: all var(--trans);
}
.tab-btn.active { background: var(--color-primary); color: #fff; box-shadow: var(--shadow-sm); }
.tab-btn:hover:not(.active) { color: var(--color-text); }
.steps { display: flex; flex-direction: column; gap: var(--space-6); }
.step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--space-6);
  align-items: start;
  padding: var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-divider);
  transition: box-shadow var(--trans);
}
.step:hover { box-shadow: var(--shadow-md); }
.step-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 900;
  color: var(--color-primary);
  opacity: 0.5;
  line-height: 1;
  padding-top: 2px;
}
.step-body h3 { font-size: var(--text-base); font-weight: 700; margin-bottom: var(--space-2); }
.step-body p { font-size: var(--text-sm); color: var(--color-text-muted); max-width: none; }

/* =========================================
   FEATURES
   ========================================= */
.section-features { background: var(--color-surface); }
.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
}
.feat-card {
  background: var(--color-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: box-shadow var(--trans), transform var(--trans);
}
.feat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feat-card--primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  grid-column: span 2;
}
@media (max-width: 600px) { .feat-card--primary { grid-column: span 1; } }
.feat-card--primary p, .feat-card--primary h3 { color: rgba(255,255,255,0.92); }
.feat-card--primary .feat-icon { color: rgba(255,255,255,0.75); }
.feat-icon {
  margin-bottom: var(--space-5);
  color: var(--color-primary);
  width: 44px;
  height: 44px;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}
.feat-card--primary .feat-icon {
  background: rgba(255,255,255,0.2);
}
.feat-card h3 { font-size: var(--text-base); font-weight: 700; margin-bottom: var(--space-3); }
.feat-card p { font-size: var(--text-sm); color: var(--color-text-muted); max-width: none; }

/* =========================================
   VS TABLE
   ========================================= */
.vs-table-wrap { overflow-x: auto; border-radius: var(--radius-xl); border: 1px solid var(--color-divider); }
.vs-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
}
.vs-table thead th {
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 700;
  text-align: center;
  background: var(--color-surface-offset);
  border-bottom: 2px solid var(--color-divider);
}
.vs-table thead th:first-child { text-align: left; }
.vs-table .col-sakutari {
  background: color-mix(in oklab, var(--color-primary-highlight) 60%, transparent);
  font-weight: 700;
}
.vs-table thead .col-sakutari { background: var(--color-primary); color: #fff; }
.vs-table tbody td {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  text-align: center;
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text-muted);
}
.vs-table tbody td:first-child { text-align: left; color: var(--color-text); font-weight: 500; }
.vs-table tbody tr:last-child td { border-bottom: none; }
.check { color: var(--color-success); font-weight: 700; font-size: var(--text-base); }
.cross { color: var(--color-error); font-weight: 700; }
.partial { color: var(--color-accent); }

/* =========================================
   WAITLIST
   ========================================= */
.section-waitlist { background: var(--color-primary); }
.waitlist-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}
@media (max-width: 768px) { .waitlist-card { grid-template-columns: 1fr; gap: var(--space-10); } }
.waitlist-text .section-title { color: #fff; }
.waitlist-text p { color: rgba(255,255,255,0.80); font-size: var(--text-base); margin-bottom: var(--space-6); max-width: 440px; }
.wl-perks { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.wl-perks li { font-size: var(--text-sm); color: rgba(255,255,255,0.85); font-weight: 500; }
.waitlist-form-wrap {
  background: var(--color-bg);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
}
.waitlist-form { display: flex; flex-direction: column; gap: var(--space-5); }
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}
.form-group input {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 0.75rem 1rem;
  font-size: var(--text-base);
  color: var(--color-text);
  font-family: var(--font-body);
  transition: border-color var(--trans), box-shadow var(--trans);
}
.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}
.form-group input::placeholder { color: var(--color-text-faint); }
.radio-group { display: flex; gap: var(--space-5); }
.radio-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  cursor: pointer;
  color: var(--color-text);
}
.radio-label input { accent-color: var(--color-primary); width: 16px; height: 16px; }
.form-note { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-4); text-align: center; }
.form-success {
  text-align: center;
  padding: var(--space-8);
}
.success-icon { font-size: 2.5rem; margin-bottom: var(--space-4); }
.form-success p { color: var(--color-text); font-weight: 600; font-size: var(--text-base); max-width: none; }

/* =========================================
   FOOTER
   ========================================= */
.footer {
  background: var(--color-surface-offset-2);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-10);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}
.footer-tagline { font-size: var(--text-sm); color: var(--color-text-muted); font-style: italic; }
.footer-copy { font-size: var(--text-xs); color: var(--color-text-faint); }

/* =========================================
   ANIMATIONS
   ========================================= */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-content > * {
  animation: fadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.hero-badge { animation-delay: 0.05s; }
.hero-title { animation-delay: 0.15s; }
.hero-sub { animation-delay: 0.25s; }
.hero-ctas { animation-delay: 0.35s; }
.hero-stats { animation-delay: 0.45s; }

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 768px) {
  .hero-title { font-size: clamp(2rem, 8vw, 3.5rem); }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; text-align: center; justify-content: center; }
  .hero-stats { gap: var(--space-5); }
  .nav-actions .btn { display: none; }
}
@media (max-width: 500px) {
  .stat-divider { display: none; }
  .hero-stats { gap: var(--space-6); flex-wrap: wrap; }
}

/* =========================================
   FOCUS / ACCESSIBILITY
   ========================================= */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}