/* ─────────────────────────────────────────────
   OneCenter Landing — styles.css
   Crafted with Apple Interface Design Principles (WWDC) & Taste Engineering.
   Optical typography, fluid spring motion, translucent materials & depth.
───────────────────────────────────────────── */

/* ── Custom Properties & Design Tokens (Violet Indigo #4F46E5) ── */
:root {
  --brand: #4F46E5;
  --brand-hover: #4338CA;
  --brand-tint: #EEF2FF;
  --brand-border: #C7D2FE;
  --brand-glow: rgba(79, 70, 229, 0.35);

  --dark-bg: #09090D;
  --dark-surface: #12121A;
  --dark-card: #1A1A26;
  --dark-border: rgba(255, 255, 255, 0.08);
  --dark-border-hover: rgba(255, 255, 255, 0.22);
  --dark-muted: rgba(255, 255, 255, 0.7);
  --dark-subtle: rgba(255, 255, 255, 0.45);

  --light-bg: #FFFFFF;
  --light-alt: #F8F8FB;
  --light-border: #E4E4E8;
  --light-muted: #71717A;
  --ink: #09090B;

  --accent-green: #10B981;
  --accent-green-tint: #ECFDF5;
  --accent-red: #EF4444;
  --accent-red-tint: #FEF2F2;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --container: 1140px;

  --font: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Geist", Roboto, sans-serif;

  /* Apple Spring & Physical Easing Curves */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--light-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
ul, ol { list-style: none; }

.tabular-nums {
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* ── Accessibility ── */
:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

.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;
}

.hidden { display: none !important; }

/* ── Container ── */
.container {
  width: min(var(--container), 100% - 2.5rem);
  margin-inline: auto;
}

/* ── Section Headers ── */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.section-h2 {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.s-dark .section-h2 { color: #FFFFFF; }

.section-lead {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--light-muted);
  line-height: 1.55;
}

.s-dark .section-lead { color: var(--dark-muted); }

/* ── Buttons (Apple Response: Instant pointer-down active scale) ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 120ms var(--ease-out), background 160ms var(--ease-out), border-color 160ms var(--ease-out), box-shadow 160ms var(--ease-out);
  text-decoration: none;
  touch-action: manipulation;
}

.btn:active {
  transform: scale(0.97);
}

.btn-sm { padding: 0.5rem 1.125rem; font-size: 0.875rem; }
.btn-lg { padding: 0.875rem 1.75rem; font-size: 1rem; }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--brand);
  color: #FFFFFF;
  border-color: var(--brand);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.25), 0 2px 8px rgba(30,64,175,0.2);
}

.btn-primary:hover {
  background: var(--brand-hover);
  border-color: var(--brand-hover);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.25), 0 6px 20px var(--brand-glow);
}

.btn-outline {
  background: transparent;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.4);
}

.s-light .btn-outline {
  color: var(--ink);
  border-color: var(--light-border);
}

.s-light .btn-outline:hover {
  background: var(--light-alt);
  border-color: #D1D1D6;
}

/* ───────────────────── NAVIGATION HEADER (Apple Translucent Glass) ───────────────────── */
.site-header {
  position: fixed;
  top: 1.25rem;
  left: 0;
  right: 0;
  z-index: 100;
  pointer-events: none;
}

.nav-container {
  width: min(1140px, 100% - 2rem);
  margin: 0 auto;
}

.nav-pill {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.625rem 0.5rem 1.25rem;
  background: rgba(14, 14, 18, 0.72);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 12px 36px rgba(0, 0, 0, 0.5);
  transition: background 200ms var(--ease-out), border-color 200ms var(--ease-out);
}

.nav-pill.scrolled {
  background: rgba(8, 8, 10, 0.88);
  border-color: rgba(255, 255, 255, 0.16);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 700;
  font-size: 1.125rem;
  color: #FFFFFF;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  transition: color 150ms var(--ease-out);
}

.nav-links a:hover {
  color: #FFFFFF;
}

.btn-nav {
  border-radius: var(--radius-full);
  padding: 0.5rem 1.25rem;
}

.nav-demo-mobile { display: none; }
.nav-login-mobile { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.toggle-bar {
  width: 100%;
  height: 2px;
  background: #FFFFFF;
  border-radius: 2px;
}

/* ───────────────────── 4.1 HERO (Apple Editorial Layout) ───────────────────── */
.s-hero {
  position: relative;
  min-height: 80vh;
  padding-top: clamp(7rem, 15vh, 9.5rem);
  padding-bottom: 5rem;
  background: var(--dark-bg);
  color: #FFFFFF;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}

.hero-glow-1 {
  position: absolute;
  width: 700px;
  height: 700px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.45) 0%, rgba(79, 70, 229, 0) 70%);
  filter: blur(120px);
  opacity: 0.55;
  pointer-events: none;
  transition: left 0.25s cubic-bezier(0.16, 1, 0.3, 1), top 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-container {
  position: relative;
  z-index: 2;
  width: min(1140px, 100% - 2.5rem);
  margin-inline: auto;
}

.hero-header {
  text-align: center;
  max-width: 840px;
  margin: 0 auto;
}

.hero-eyebrow {
  font-size: 0.8125rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  color: #FFFFFF;
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--dark-muted);
  max-width: 660px;
  margin: 0 auto 2.5rem auto;
  line-height: 1.55;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-trust {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--dark-muted);
}

.trust-check {
  width: 18px;
  height: 18px;
  color: var(--accent-green);
}

.trust-text strong { color: #FFFFFF; }

.hero-stage-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
}

/* ── Hero Integrated 3-Column Apple Feature Grid ── */
.hero-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.hero-feature-card {
  background: rgba(18, 18, 22, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  text-align: left;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 16px 36px rgba(0, 0, 0, 0.4);
  transition: transform 200ms var(--ease-out), border-color 200ms var(--ease-out), background 200ms var(--ease-out);
}

.hero-feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(30, 64, 175, 0.5);
  background: rgba(24, 24, 30, 0.85);
}

.feature-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--brand-tint);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg { width: 22px; height: 22px; }

.feature-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--dark-muted);
  line-height: 1.5;
}

/* ───────────────────── 4.2 SPECIFICS BAR (Dark) ───────────────────── */
.s-specifics {
  background: var(--dark-bg);
  border-top: 1px solid var(--dark-border);
  padding: 3rem 0;
  color: #FFFFFF;
}

.specifics-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.specifics-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  font-weight: 500;
  font-size: 1rem;
  color: rgba(255,255,255,0.9);
  padding: 1rem 1.25rem;
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
}

.check-icon {
  width: 20px;
  height: 20px;
  color: #10B981;
  flex-shrink: 0;
}

.specifics-banner {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--dark-muted);
  padding: 0.875rem 1.5rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-full);
  max-width: 600px;
  margin: 0 auto;
}

/* ───────────────────── 4.3 MONEY SCENE (Light) ───────────────────── */
.s-money {
  padding: 6rem 0;
  background: var(--light-bg);
}

.money-scene {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.money-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.money-tab {
  display: flex;
  flex-direction: column;
  text-align: left;
  padding: 1.25rem;
  background: var(--light-alt);
  border: 1.5px solid var(--light-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform 160ms var(--ease-out), border-color 160ms var(--ease-out), background 160ms var(--ease-out), box-shadow 160ms var(--ease-out);
}

.money-tab:hover {
  border-color: #BFDBFE;
  background: #FFFFFF;
}

.money-tab.active {
  background: #FFFFFF;
  border-color: var(--brand);
  box-shadow: 0 4px 20px rgba(30, 64, 175, 0.12);
}

.money-tab:active {
  transform: scale(0.98);
}

.tab-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.375rem;
}

.tab-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.25rem;
}

.tab-desc {
  font-size: 0.875rem;
  color: var(--light-muted);
  line-height: 1.45;
}

.money-preview-container {
  background: var(--light-alt);
  border: 1px solid var(--light-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 12px 32px rgba(0,0,0,0.04);
  position: relative;
  min-height: 380px;
}

.preview-scene {
  display: none;
  opacity: 0;
  transform: scale(0.98);
  transition: opacity 200ms var(--ease-out), transform 200ms var(--ease-out);
}

.preview-scene.active {
  display: block;
  opacity: 1;
  transform: scale(1);
}

.widget-card {
  background: #FFFFFF;
  border: 1px solid var(--light-border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.widget-card-img {
  padding: 0;
  overflow: hidden;
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.07);
}

.widget-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

.widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.widget-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--light-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.widget-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ink);
}

.widget-badge {
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
}

.badge-warning { background: #FEF3C7; color: #92400E; }
.badge-success { background: #D1FAE5; color: #065F46; }
.badge-neutral { background: var(--light-alt); color: var(--ink); border: 1px solid var(--light-border); }

.widget-table-wrap {
  overflow-x: auto;
  margin-bottom: 1rem;
}

.widget-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.widget-table th {
  padding: 0.625rem 0.75rem;
  font-weight: 600;
  color: var(--light-muted);
  border-bottom: 1px solid var(--light-border);
}

.widget-table td {
  padding: 0.875rem 0.75rem;
  border-bottom: 1px solid #F1F1F4;
  color: var(--ink);
}

.status-pill {
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.status-overdue { background: #FEE2E2; color: #991B1B; }
.status-pending { background: #DBEAFE; color: #1E40AF; }

.btn-table-action {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--brand-tint);
  color: var(--brand);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 150ms var(--ease-out);
}

.btn-table-action:hover {
  background: #DBEAFE;
}

.widget-footer {
  font-size: 0.8125rem;
  color: var(--light-muted);
}

.pnl-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.pnl-stat-box {
  padding: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--light-border);
}

.bg-tint { background: #EFF6FF; border-color: #BFDBFE; }
.bg-tint-red { background: #FEF2F2; border-color: #FCA5A5; }
.bg-tint-green { background: #ECFDF5; border-color: #6EE7B7; }

.pnl-label { font-size: 0.75rem; font-weight: 600; color: var(--light-muted); margin-bottom: 0.25rem; }
.pnl-value { font-size: 1.25rem; font-weight: 700; }
.text-brand { color: var(--brand); }
.text-red { color: #DC2626; }
.text-green { color: #059669; }
.pnl-sub { font-size: 0.75rem; color: var(--light-muted); margin-top: 0.25rem; }

.pnl-bar-visual {
  display: flex;
  height: 12px;
  border-radius: var(--radius-full);
  overflow: hidden;
  gap: 2px;
  margin-bottom: 1.25rem;
}

.segment-green { background: #10B981; }
.segment-blue { background: #3B82F6; }
.segment-amber { background: #F59E0B; }

/* ───────────────────── 4.4 PAIN CARDS (Light) ───────────────────── */
.s-pain {
  padding: 6rem 0;
  background: var(--light-alt);
  border-top: 1px solid var(--light-border);
  border-bottom: 1px solid var(--light-border);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
}

.pain-card {
  background: #FFFFFF;
  border: 1px solid var(--light-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}

.pain-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.06);
}

.pain-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: #FEF2F2;
  color: #DC2626;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.pain-icon svg { width: 24px; height: 24px; }

.pain-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.pain-card p {
  font-size: 0.9375rem;
  color: var(--light-muted);
  line-height: 1.55;
}

/* ───────────────────── 4.5 MODULES BENTO (Light) ───────────────────── */
.s-modules {
  padding: 6rem 0;
  background: var(--light-bg);
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.spotlight-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--light-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  overflow: hidden;
  transition: border-color 200ms var(--ease-out), transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}

.spotlight-card:hover {
  border-color: #BFDBFE;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(30, 64, 175, 0.08);
}

.module-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--brand-tint);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.module-icon svg { width: 22px; height: 22px; }

.module-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.375rem;
}

.module-card p {
  font-size: 0.875rem;
  color: var(--light-muted);
  line-height: 1.5;
}

.module-card-full {
  grid-column: span 3;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: linear-gradient(to right, #FFFFFF, var(--brand-tint));
}

.module-card-full .module-icon {
  margin-bottom: 0;
  flex-shrink: 0;
}

/* ───────────────────── 4.6 MIGRATION (Accent Card) ───────────────────── */
.s-migration {
  padding: 4rem 0;
  background: var(--light-bg);
}

.migration-card {
  background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-xl);
  padding: 3.5rem clamp(1.5rem, 5vw, 4rem);
  text-align: center;
  box-shadow: 0 16px 40px rgba(30, 64, 175, 0.1);
}

.migration-badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: #FFFFFF;
  color: var(--brand);
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  box-shadow: 0 2px 8px rgba(30,64,175,0.12);
}

.migration-h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.migration-lead {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: #374151;
  max-width: 780px;
  margin: 0 auto 2rem auto;
  line-height: 1.6;
}

.migration-highlight {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.875rem 1.5rem;
  background: #FFFFFF;
  border-radius: var(--radius);
  font-weight: 600;
  color: var(--brand);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.mig-icon { width: 20px; height: 20px; flex-shrink: 0; }

/* ───────────────────── 4.7 ROLES SWITCHER (Light) ───────────────────── */
.s-roles {
  padding: 6rem 0;
  background: var(--light-alt);
  border-top: 1px solid var(--light-border);
  border-bottom: 1px solid var(--light-border);
}

.roles-widget {
  background: #FFFFFF;
  border: 1px solid var(--light-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: 0 12px 36px rgba(0,0,0,0.04);
}

.roles-tabs {
  display: flex;
  gap: 0.75rem;
  border-bottom: 1px solid var(--light-border);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
  overflow-x: auto;
}

.role-btn {
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--light-alt);
  border: 1px solid var(--light-border);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--light-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: transform 160ms var(--ease-out), background 160ms var(--ease-out), color 160ms var(--ease-out), border-color 160ms var(--ease-out);
}

.role-btn:hover {
  color: var(--ink);
  border-color: #BFDBFE;
}

.role-btn.active {
  background: var(--brand);
  color: #FFFFFF;
  border-color: var(--brand);
  box-shadow: 0 4px 12px var(--brand-glow);
}

.role-btn:active {
  transform: scale(0.96);
}

.role-view {
  display: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 200ms var(--ease-out), transform 200ms var(--ease-out);
}

.role-view.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.role-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.role-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.role-info p {
  font-size: 1rem;
  color: var(--light-muted);
  margin-bottom: 1.5rem;
  line-height: 1.55;
}

.role-feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.role-feature-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9375rem;
  color: var(--ink);
  font-weight: 500;
}

.role-feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--brand);
  font-weight: 700;
}

.mockup-frame {
  background: var(--dark-bg);
  border-radius: var(--radius);
  border: 1px solid var(--dark-border);
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
  color: #FFFFFF;
}

.phone-frame {
  max-width: 280px;
  margin: 0 auto;
  border-radius: 28px;
  border-width: 6px;
}

.mockup-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.75rem 1rem;
  background: var(--dark-surface);
  border-bottom: 1px solid var(--dark-border);
  font-size: 0.75rem;
  color: var(--dark-muted);
}

.dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.2); }
.mockup-title { margin-left: auto; font-weight: 500; }

.mockup-body { padding: 1.5rem; }

.mock-stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
.mock-card { background: var(--dark-card); border: 1px solid var(--dark-border); padding: 0.875rem; border-radius: var(--radius-sm); }
.mock-lbl { font-size: 0.75rem; color: var(--dark-muted); display: block; margin-bottom: 0.25rem; }
.mock-val { font-size: 1.125rem; font-weight: 700; }

.qr-mock-box { padding: 2rem; background: var(--dark-card); border: 2px dashed var(--brand); border-radius: var(--radius); text-align: center; font-weight: 600; color: var(--brand); margin-bottom: 0.75rem; }
.qr-mock-text { font-size: 0.8125rem; color: var(--dark-muted); text-align: center; }

.mock-student-list { display: flex; flex-direction: column; gap: 0.5rem; }
.mock-student-item { display: flex; justify-content: space-between; align-items: center; padding: 0.625rem 0.875rem; background: var(--dark-card); border-radius: var(--radius-sm); font-size: 0.875rem; }
.badge-tag { padding: 0.25rem 0.5rem; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
.tag-present { background: rgba(16, 185, 129, 0.2); color: #34D399; }
.tag-absent { background: rgba(239, 68, 68, 0.2); color: #FCA5A5; }

.phone-qr-demo { padding: 1rem; }
.mini-qr { width: 100px; height: 100px; background: #FFF; margin: 0 auto 1rem auto; border-radius: 8px; background-image: radial-gradient(#000 40%, transparent 40%); background-size: 10px 10px; }
.phone-name { font-weight: 700; margin-bottom: 0.25rem; }
.phone-status { font-size: 0.75rem; color: #34D399; }

/* ───────────────────── 4.8 PRICING (Light) ───────────────────── */
.s-pricing {
  padding: 6rem 0;
  background: var(--light-bg);
}

.pricing-toggle-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.toggle-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--light-muted);
}

.discount-badge {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  background: var(--accent-green-tint);
  color: #047857;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  margin-left: 0.5rem;
}

.toggle-switch {
  width: 52px;
  height: 28px;
  background: var(--light-border);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  position: relative;
  padding: 2px;
  transition: background 200ms var(--ease-out);
}

.toggle-switch[aria-checked="true"] {
  background: var(--brand);
}

.switch-handle {
  display: block;
  width: 24px;
  height: 24px;
  background: #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  transition: transform 200ms var(--ease-spring);
}

.toggle-switch[aria-checked="true"] .switch-handle {
  transform: translateX(24px);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
  margin-bottom: 3rem;
}

.pricing-card {
  position: relative;
  background: #FFFFFF;
  border: 1.5px solid var(--light-border);
  border-radius: var(--radius-xl);
  padding: 2.25rem 1.75rem;
  display: flex;
  flex-direction: column;
  transition: transform 200ms var(--ease-out), border-color 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0,0,0,0.06);
}

.plan-featured {
  border-color: var(--brand);
  box-shadow: 0 12px 32px rgba(30, 64, 175, 0.15);
}

.featured-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px var(--brand-glow);
}

.plan-header { margin-bottom: 1.5rem; }
.plan-name { font-size: 1.5rem; font-weight: 800; color: var(--ink); margin-bottom: 0.375rem; }
.plan-desc { font-size: 0.875rem; color: var(--light-muted); min-height: 40px; }

.plan-price-wrap {
  padding: 1.25rem 0;
  border-top: 1px solid var(--light-border);
  border-bottom: 1px solid var(--light-border);
  margin-bottom: 1.5rem;
}

.plan-price { font-size: 2.5rem; font-weight: 800; color: var(--ink); line-height: 1; }
.plan-period { font-size: 0.875rem; color: var(--light-muted); margin-top: 0.25rem; }
.plan-year { font-size: 0.8125rem; font-weight: 600; color: var(--brand); margin-top: 0.5rem; }

.plan-specs { display: flex; flex-direction: column; gap: 0.5rem; font-size: 0.875rem; margin-bottom: 1.5rem; }
.spec-row { color: var(--ink); }

.plan-features { display: flex; flex-direction: column; gap: 0.75rem; font-size: 0.875rem; color: var(--ink); margin-bottom: 2rem; flex-grow: 1; }
.plan-features li { position: relative; padding-left: 1.375rem; }
.plan-features li::before { content: "✓"; position: absolute; left: 0; color: var(--brand); font-weight: 700; }

.pricing-guarantee {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.25rem 2rem;
  background: var(--light-alt);
  border: 1px solid var(--light-border);
  border-radius: var(--radius-lg);
  max-width: 760px;
  margin: 0 auto;
  font-size: 0.9375rem;
  color: var(--ink);
  text-align: center;
}

.guarantee-icon { width: 24px; height: 24px; color: var(--brand); flex-shrink: 0; }

/* ───────────────────── ИНФРАСТРУКТУРА И БЕЗОПАСНОСТЬ (Dark) ───────────────────── */
.s-honest {
  padding: 6rem 0;
  background: var(--dark-bg);
  color: #FFFFFF;
}

.infra-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.infra-card {
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform 200ms var(--ease-out), border-color 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}

.infra-card:hover {
  transform: translateY(-3px);
  border-color: rgba(30, 64, 175, 0.5);
  box-shadow: 0 12px 28px rgba(0,0,0,0.3);
}

.infra-svg-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.05);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.25rem;
}

.infra-svg-icon svg { width: 20px; height: 20px; }

.infra-card h3 { font-size: 1.125rem; font-weight: 700; color: #FFFFFF; }
.infra-card p { font-size: 0.875rem; color: var(--dark-muted); }

/* ───────────────────── 4.10 FAQ (Light) ───────────────────── */
.s-faq {
  padding: 6rem 0;
  background: var(--light-bg);
}

.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--light-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 150ms var(--ease-out);
}

.faq-item[open] {
  border-color: var(--brand-border);
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
}

.faq-question:hover { color: var(--brand); }

.faq-chevron {
  width: 20px;
  height: 20px;
  color: var(--light-muted);
  flex-shrink: 0;
  transition: transform 200ms var(--ease-out);
}

.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
  color: var(--brand);
}

.faq-answer {
  padding: 0 1.5rem 1.5rem 1.5rem;
  font-size: 0.9375rem;
  color: var(--light-muted);
  line-height: 1.6;
}

/* ───────────────────── 4.11 CTA & DEMO FORM (Dark) ───────────────────── */
.s-cta {
  padding: 6rem 0;
  background: var(--dark-bg);
  color: #FFFFFF;
}

.cta-card {
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 5vw, 3.5rem);
}

.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 3.5rem;
  align-items: center;
}

.cta-h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  line-height: 1.15;
}

.cta-sub {
  font-size: 1.0625rem;
  color: var(--dark-muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.cta-perks {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cta-perks li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.9);
}

.perk-icon { width: 20px; height: 20px; color: #10B981; flex-shrink: 0; }

.cta-form-wrap {
  position: relative;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.demo-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: 0.375rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-label { font-size: 0.8125rem; font-weight: 600; color: var(--dark-muted); }

.form-input, .form-select {
  padding: 0.75rem 1rem;
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-sm);
  color: #FFFFFF;
  font-size: 0.9375rem;
  transition: border-color 150ms var(--ease-out);
}

.form-input:focus, .form-select:focus {
  border-color: var(--brand);
  outline: none;
}

.form-select option { background: var(--dark-surface); color: #FFFFFF; }

.form-privacy {
  font-size: 0.75rem;
  color: var(--dark-subtle);
  text-align: center;
  line-height: 1.4;
}

.form-consent-group {
  margin-top: 0.75rem;
  margin-bottom: 1rem;
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.75rem;
  color: var(--dark-subtle);
  line-height: 1.4;
  cursor: pointer;
  text-align: left;
}

.form-checkbox {
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.125rem;
  accent-color: var(--brand);
  cursor: pointer;
  flex-shrink: 0;
}

.legal-link {
  color: var(--brand);
  text-decoration: underline;
}

.legal-link:hover {
  color: #60A5FA;
}

.form-error-msg {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #FCA5A5;
  font-size: 0.8125rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  text-align: left;
  line-height: 1.4;
}

.form-error-msg .retry-btn {
  margin-top: 0.5rem;
  display: inline-block;
  background: rgba(239, 68, 68, 0.3);
  color: #FFF;
  border: 1px solid rgba(239, 68, 68, 0.6);
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 150ms;
}

.form-error-msg .retry-btn:hover {
  background: rgba(239, 68, 68, 0.5);
}

.form-success-overlay {
  text-align: center;
  padding: 3rem 1.5rem;
}

.success-icon {
  width: 56px;
  height: 56px;
  background: #10B981;
  color: #FFF;
  border-radius: 50%;
  font-size: 1.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
}

/* ───────────────────── 4.12 FOOTER (Dark) ───────────────────── */
.site-footer {
  background: var(--dark-bg);
  border-top: 1px solid var(--dark-border);
  padding: 3.5rem 0 2.5rem 0;
  color: var(--dark-muted);
  font-size: 0.875rem;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--dark-border);
  margin-bottom: 2rem;
}

.footer-logo { display: flex; align-items: center; gap: 0.625rem; font-weight: 700; color: #FFFFFF; font-size: 1.125rem; }

.footer-contact { display: flex; align-items: center; gap: 1.5rem; }
.footer-mail { color: #FFFFFF; font-weight: 500; }
.footer-mail:hover { color: var(--brand); }

.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer-legal { display: flex; gap: 1.5rem; }
.footer-legal a:hover { color: #FFFFFF; }

/* ───────────────────── ANIMATIONS & MOTION ───────────────────── */
.s-hero .animate-on-scroll {
  opacity: 1 !important;
  transform: none !important;
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 350ms var(--ease-out), transform 350ms var(--ease-out);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 80ms; }
.delay-2 { transition-delay: 160ms; }
.delay-3 { transition-delay: 240ms; }

/* ───────────────────── RESPONSIVE BREAKPOINTS ───────────────────── */
@media (max-width: 1024px) {
  .hero-features-grid { grid-template-columns: 1fr; }
  .modules-grid { grid-template-columns: repeat(2, 1fr); }
  .module-card-full { grid-column: span 2; }
  .money-scene { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin-inline: auto; }
  .cta-grid { grid-template-columns: 1fr; }
  .infra-grid-3 { grid-template-columns: 1fr; }
  .role-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .br-desktop { display: none; }
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; }
  .nav-demo-mobile {
    display: block;
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  .nav-login-mobile { display: block; text-align: center; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    background: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    gap: 1rem;
    box-shadow: 0 16px 40px rgba(0,0,0,0.5);
  }

  .modules-grid { grid-template-columns: 1fr; }
  .module-card-full { grid-column: span 1; flex-direction: column; align-items: flex-start; }
  .pnl-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .mock-stat-row { grid-template-columns: 1fr; }
  .footer-top, .footer-bottom { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
}

/* ───────────────────── ACCESSIBILITY ───────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .nav-pill {
    background: #0A0F1D !important;
    backdrop-filter: none !important;
  }
  .hero-feature-card {
    background: #111827 !important;
    backdrop-filter: none !important;
  }
}

/* ───────────────────── 4.13 LEGAL PAGES STYLING ───────────────────── */
.legal-hero {
  padding-top: clamp(7rem, 15vh, 9rem);
  padding-bottom: 3rem;
  background: var(--dark-bg);
  color: #FFFFFF;
  border-bottom: 1px solid var(--dark-border);
}

.legal-hero-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.legal-hero-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  color: var(--dark-muted);
  font-size: 0.9375rem;
}

.legal-hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.legal-section {
  padding: 3.5rem 0 5rem 0;
  background: var(--light-bg);
  color: var(--ink);
}

.legal-card {
  background: #FFFFFF;
  border: 1px solid var(--light-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

.legal-body {
  font-size: 1rem;
  line-height: 1.7;
  color: #27272A;
}

.legal-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 2.25rem 0 1rem 0;
  color: var(--ink);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--light-border);
}

.legal-body h2:first-child {
  margin-top: 0;
}

.legal-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1.75rem 0 0.75rem 0;
  color: var(--ink);
}

.legal-body h4 {
  font-size: 1.025rem;
  font-weight: 600;
  margin: 1.25rem 0 0.5rem 0;
  color: var(--ink);
}

.legal-body p {
  margin-bottom: 1rem;
}

.legal-body ul, .legal-body ol {
  margin: 0.75rem 0 1.25rem 1.5rem;
  list-style-type: disc;
}

.legal-body li {
  margin-bottom: 0.375rem;
}

.legal-table-wrapper {
  overflow-x: auto;
  margin: 1.5rem 0;
}

.legal-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.legal-body th, .legal-body td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--light-border);
  text-align: left;
}

.legal-body th {
  background: var(--light-alt);
  font-weight: 600;
  color: var(--ink);
}

.legal-body tr:nth-child(even) td {
  background: #FAFAFC;
}

.legal-body blockquote {
  background: var(--brand-tint);
  border-left: 4px solid var(--brand);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.25rem 0;
  color: #3730A3;
  font-size: 0.95rem;
}

.legal-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--brand);
  font-weight: 500;
  margin-bottom: 1.5rem;
  text-decoration: none;
}

.legal-back-link:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .legal-card {
    padding: 1.5rem;
  }
}