/* ================================================================
   ViSER — OpenGurukul Evolution | viser.ivirth.in
   Design System: DM Sans | Black, White, Dark Blue, Brown
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;0,9..40,800;0,9..40,900;1,9..40,300;1,9..40,400&display=swap');

/* ─── CSS Variables ─────────────────────────────────────────── */
:root {
  --font: 'DM Sans', sans-serif;

  /* Light Mode */
  --bg:         #F8F6F2;
  --bg-alt:     #EDEAE3;
  --bg-card:    #FFFFFF;
  --surface:    #F0EDE7;
  --border:     rgba(0,0,0,0.10);
  --text:       #0A0A0A;
  --text-muted: #555048;
  --text-sub:   #888079;

  /* Brand Palette */
  --black:      #0A0A0A;
  --white:      #FFFFFF;
  --blue:       #0D1B3E;
  --blue-mid:   #1A3060;
  --blue-lite:  #2A4A8A;
  --brown:      #6B4226;
  --brown-lite: #9B6B47;
  --brown-warm: #C4915C;

  /* Accents */
  --accent:     #0D1B3E;
  --accent2:    #6B4226;
  --glow:       rgba(13,27,62,0.12);

  --radius-sm:  6px;
  --radius:     14px;
  --radius-lg:  24px;
  --radius-xl:  40px;

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.06);
  --shadow:     0 8px 32px rgba(0,0,0,0.09);
  --shadow-lg:  0 20px 60px rgba(0,0,0,0.13);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --nav-h: 72px;
}

[data-theme="dark"] {
  --bg:         #070A12;
  --bg-alt:     #0D1020;
  --bg-card:    #111520;
  --surface:    #161B2E;
  --border:     rgba(255,255,255,0.08);
  --text:       #F0EDE7;
  --text-muted: #A8A49C;
  --text-sub:   #6E6B65;

  --accent:     #4A7ADA;
  --blue-lite:  #4A7ADA;
  --brown-warm: #C4915C;
  --glow:       rgba(74,122,218,0.15);

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.3);
  --shadow:     0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg:  0 20px 60px rgba(0,0,0,0.5);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* ─── Typography ────────────────────────────────────────────── */
.display-xl {
  font-size: clamp(2.6rem, 6vw, 5.2rem);
  font-weight: 800;
  line-height: 1.07;
  letter-spacing: -0.03em;
}
.display-lg {
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
}
.display-md {
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.display-sm {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 600;
  line-height: 1.3;
}
.body-lg { font-size: 1.125rem; line-height: 1.7; }
.body-md { font-size: 1rem; line-height: 1.65; }
.body-sm { font-size: 0.875rem; line-height: 1.6; }
.label   { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }

.text-muted  { color: var(--text-muted); }
.text-sub    { color: var(--text-sub); }
.text-blue   { color: var(--blue-lite); }
.text-brown  { color: var(--brown-warm); }
.text-white  { color: var(--white); }

/* ─── Layout ────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-sm { max-width: 800px; }
.container-lg { max-width: 1400px; }

section { padding: 100px 0; }

/* ─── Navigation ────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  background: rgba(248,246,242,0.88);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}
[data-theme="dark"] .nav {
  background: rgba(7,10,18,0.88);
}
.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo-mark {
  width: 36px;
  height: 36px;
  background: var(--blue);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: white;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
[data-theme="dark"] .nav-logo-mark {
  background: var(--blue-lite);
}
.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.nav-logo-title {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}
.nav-logo-sub {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-sub);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover {
  color: var(--text);
  background: var(--surface);
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}
.theme-toggle {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition);
  cursor: pointer;
  font-size: 1rem;
}
.theme-toggle:hover { background: var(--bg-card); color: var(--text); }

.nav-mobile-toggle {
  display: none;
  width: 38px; height: 38px;
  align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-size: 1.25rem;
  cursor: pointer;
}

/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue);
  color: white;
  border: 2px solid var(--blue);
}
.btn-primary:hover {
  background: var(--blue-mid);
  border-color: var(--blue-mid);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(13,27,62,0.3);
}
[data-theme="dark"] .btn-primary {
  background: var(--blue-lite);
  border-color: var(--blue-lite);
}
[data-theme="dark"] .btn-primary:hover {
  background: #5A8AEA;
  border-color: #5A8AEA;
  box-shadow: 0 8px 24px rgba(74,122,218,0.4);
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--text-muted);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--blue-lite);
  border: 2px solid transparent;
  padding: 13px 20px;
}
.btn-ghost:hover {
  background: var(--glow);
  border-color: var(--blue-lite);
}
.btn-brown {
  background: var(--brown);
  color: white;
  border: 2px solid var(--brown);
}
.btn-brown:hover {
  background: var(--brown-lite);
  border-color: var(--brown-lite);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(107,66,38,0.3);
}
.btn-lg {
  padding: 16px 34px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}
.btn-sm {
  padding: 9px 18px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

/* ─── Badges / Tags ─────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.badge-blue {
  background: rgba(13,27,62,0.10);
  color: var(--blue);
  border: 1px solid rgba(13,27,62,0.15);
}
[data-theme="dark"] .badge-blue {
  background: rgba(74,122,218,0.15);
  color: var(--blue-lite);
  border-color: rgba(74,122,218,0.25);
}
.badge-brown {
  background: rgba(107,66,38,0.10);
  color: var(--brown);
  border: 1px solid rgba(107,66,38,0.15);
}
[data-theme="dark"] .badge-brown {
  background: rgba(196,145,92,0.15);
  color: var(--brown-warm);
  border-color: rgba(196,145,92,0.25);
}
.badge-dark {
  background: var(--black);
  color: var(--white);
}
[data-theme="dark"] .badge-dark {
  background: var(--white);
  color: var(--black);
}

/* ─── Section Labels ────────────────────────────────────────── */
.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.section-eyebrow-line {
  width: 32px;
  height: 2px;
  background: var(--brown-warm);
  border-radius: 2px;
}
.section-eyebrow span {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brown-warm);
}

/* ─── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}
.card:hover {
  border-color: rgba(13,27,62,0.2);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
[data-theme="dark"] .card:hover {
  border-color: rgba(74,122,218,0.2);
}
.card-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.card-icon-blue {
  background: rgba(13,27,62,0.08);
}
[data-theme="dark"] .card-icon-blue {
  background: rgba(74,122,218,0.15);
}
.card-icon-brown {
  background: rgba(107,66,38,0.08);
}
[data-theme="dark"] .card-icon-brown {
  background: rgba(196,145,92,0.12);
}

/* ─── HERO ──────────────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(13,27,62,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13,27,62,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
[data-theme="dark"] .hero-grid {
  background-image:
    linear-gradient(rgba(74,122,218,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74,122,218,0.05) 1px, transparent 1px);
}
.hero-blob-1 {
  position: absolute;
  width: 700px; height: 700px;
  top: -200px; right: -200px;
  background: radial-gradient(circle, rgba(13,27,62,0.07) 0%, transparent 70%);
  border-radius: 50%;
}
[data-theme="dark"] .hero-blob-1 {
  background: radial-gradient(circle, rgba(74,122,218,0.12) 0%, transparent 70%);
}
.hero-blob-2 {
  position: absolute;
  width: 500px; height: 500px;
  bottom: -150px; left: 10%;
  background: radial-gradient(circle, rgba(107,66,38,0.06) 0%, transparent 70%);
  border-radius: 50%;
}
[data-theme="dark"] .hero-blob-2 {
  background: radial-gradient(circle, rgba(196,145,92,0.08) 0%, transparent 70%);
}
.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 80px 0;
}
.hero-text {}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.hero-headline {
  margin-bottom: 24px;
}
.hero-headline em {
  font-style: normal;
  color: var(--blue-lite);
}
[data-theme="dark"] .hero-headline em {
  color: var(--blue-lite);
}
.hero-sub {
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 52px;
}
.hero-stats {
  display: flex;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.hero-stat-val {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
}
.hero-stat-val span {
  color: var(--brown-warm);
}
.hero-stat-label {
  font-size: 0.78rem;
  color: var(--text-sub);
  margin-top: 2px;
}

.hero-visual {
  position: relative;
}
.hero-card-stack {
  position: relative;
  height: 520px;
}
.hcs-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.hcs-card:nth-child(1) {
  width: 320px;
  top: 0; right: 0;
  animation: float1 6s ease-in-out infinite;
}
.hcs-card:nth-child(2) {
  width: 280px;
  top: 170px; left: 0;
  animation: float2 7s ease-in-out infinite;
}
.hcs-card:nth-child(3) {
  width: 260px;
  bottom: 0; right: 30px;
  animation: float3 5.5s ease-in-out infinite;
}
@keyframes float1 {
  0%,100% { transform: translateY(0px) rotate(0deg); }
  50%      { transform: translateY(-12px) rotate(0.5deg); }
}
@keyframes float2 {
  0%,100% { transform: translateY(0px) rotate(-0.5deg); }
  50%      { transform: translateY(-8px) rotate(0deg); }
}
@keyframes float3 {
  0%,100% { transform: translateY(0px) rotate(0.3deg); }
  50%      { transform: translateY(-10px) rotate(-0.3deg); }
}
.hcs-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-sub);
  margin-bottom: 8px;
}
.hcs-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.hcs-bars { display: flex; flex-direction: column; gap: 8px; }
.hcs-bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.hcs-bar-label { font-size: 0.72rem; color: var(--text-muted); width: 32px; }
.hcs-bar-track {
  flex: 1;
  height: 6px;
  background: var(--surface);
  border-radius: 3px;
  overflow: hidden;
}
.hcs-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--blue);
}
[data-theme="dark"] .hcs-bar-fill { background: var(--blue-lite); }
.hcs-bar-fill.brown { background: var(--brown-warm); }
.hcs-bar-val { font-size: 0.72rem; font-weight: 700; color: var(--text); width: 28px; text-align: right; }

.hcs-avatar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.hcs-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
}
.hcs-avatar-info {}
.hcs-avatar-name { font-size: 0.85rem; font-weight: 600; }
.hcs-avatar-role { font-size: 0.7rem; color: var(--text-muted); }

.hcs-metric-row {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}
.hcs-metric {
  flex: 1;
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
}
.hcs-metric-val {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
}
.hcs-metric-key {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-sub);
  margin-top: 2px;
}

.hcs-icon-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.hcs-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--surface);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* ─── MARQUEE ────────────────────────────────────────────────── */
.marquee-section {
  padding: 28px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  background: var(--bg-alt);
}
.marquee-track {
  display: flex;
  animation: marquee 28s linear infinite;
  white-space: nowrap;
}
.marquee-track:hover { animation-play-state: paused; }
.marquee-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 32px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  flex-shrink: 0;
}
.marquee-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--brown-warm);
}
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ─── VALUE PROPS ────────────────────────────────────────────── */
#value-props { padding: 100px 0; }
.vp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}
.vp-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.vp-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.vp-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}
.vp-card:nth-child(1)::before { background: var(--blue); }
.vp-card:nth-child(2)::before { background: var(--brown); }
.vp-card:nth-child(3)::before { background: linear-gradient(90deg, var(--blue), var(--brown)); }
.vp-number {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-sub);
  margin-bottom: 20px;
}
.vp-emoji { font-size: 2rem; margin-bottom: 16px; }
.vp-title { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; }
.vp-desc { color: var(--text-muted); font-size: 0.9rem; line-height: 1.65; margin-bottom: 20px; }
.vp-list { display: flex; flex-direction: column; gap: 8px; }
.vp-list-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.vp-list-item::before {
  content: '→';
  color: var(--brown-warm);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ─── TECHNOLOGY ─────────────────────────────────────────────── */
#technology {
  background: var(--blue);
  color: white;
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] #technology {
  background: var(--bg-alt);
}
.tech-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}
[data-theme="dark"] .tech-bg-pattern {
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
}
.tech-inner { position: relative; z-index: 1; }
.tech-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 80px;
}
.tech-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
[data-theme="dark"] .tech-label { color: var(--text-sub); }
.tech-label::before {
  content: '';
  width: 24px; height: 2px;
  background: var(--brown-warm);
  border-radius: 2px;
}
.tech-intro h2 {
  color: white;
  margin-bottom: 20px;
}
[data-theme="dark"] .tech-intro h2 { color: var(--text); }
.tech-intro p {
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
}
[data-theme="dark"] .tech-intro p { color: var(--text-muted); }
.tech-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
}
[data-theme="dark"] .tech-features {
  background: var(--border);
  border-color: var(--border);
}
.tech-feat {
  background: rgba(13,27,62,0.6);
  padding: 32px 28px;
  transition: all var(--transition);
}
[data-theme="dark"] .tech-feat { background: var(--bg-card); }
.tech-feat:hover {
  background: rgba(13,27,62,0.8);
}
[data-theme="dark"] .tech-feat:hover { background: var(--surface); }
.tech-feat-icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
}
.tech-feat-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
}
[data-theme="dark"] .tech-feat-title { color: var(--text); }
.tech-feat-desc {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.6;
}
[data-theme="dark"] .tech-feat-desc { color: var(--text-muted); }

/* Helix Passport */
.helix-section {
  margin-top: 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.helix-passport {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
  padding: 36px;
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] .helix-passport {
  background: var(--bg-card);
  border-color: var(--border);
}
.helix-passport::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(196,145,92,0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.hp-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
[data-theme="dark"] .hp-header { border-bottom-color: var(--border); }
.hp-icon {
  width: 44px; height: 44px;
  background: var(--brown);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.hp-name { font-size: 1rem; font-weight: 700; color: white; }
[data-theme="dark"] .hp-name { color: var(--text); }
.hp-id { font-size: 0.7rem; color: rgba(255,255,255,0.4); font-family: monospace; letter-spacing: 0.1em; }
[data-theme="dark"] .hp-id { color: var(--text-sub); }
.hp-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}
.hp-metric {
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: center;
}
[data-theme="dark"] .hp-metric { background: var(--surface); }
.hp-metric-val { font-size: 1.4rem; font-weight: 800; color: white; }
[data-theme="dark"] .hp-metric-val { color: var(--text); }
.hp-metric-key { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.4); margin-top: 2px; }
[data-theme="dark"] .hp-metric-key { color: var(--text-sub); }
.hp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.hp-tag {
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hp-tag-blue { background: rgba(74,122,218,0.2); color: #7AA8F0; border: 1px solid rgba(74,122,218,0.3); }
.hp-tag-brown { background: rgba(196,145,92,0.2); color: var(--brown-warm); border: 1px solid rgba(196,145,92,0.3); }
.hp-tag-green { background: rgba(72,187,120,0.15); color: #68D391; border: 1px solid rgba(72,187,120,0.25); }

.helix-text {}
.helix-text h3 { color: white; margin-bottom: 16px; }
[data-theme="dark"] .helix-text h3 { color: var(--text); }
.helix-text p { color: rgba(255,255,255,0.65); margin-bottom: 24px; }
[data-theme="dark"] .helix-text p { color: var(--text-muted); }
.helix-points { display: flex; flex-direction: column; gap: 14px; }
.helix-point { display: flex; align-items: flex-start; gap: 12px; }
.helix-point-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--brown-warm);
  flex-shrink: 0;
  margin-top: 6px;
}
.helix-point-text { font-size: 0.88rem; color: rgba(255,255,255,0.7); line-height: 1.55; }
[data-theme="dark"] .helix-point-text { color: var(--text-muted); }
.helix-point-text strong { color: white; font-weight: 600; }
[data-theme="dark"] .helix-point-text strong { color: var(--text); }

/* ─── ViSE ASSESSMENT ────────────────────────────────────────── */
#vise { padding: 100px 0; }
.vise-header { text-align: center; max-width: 640px; margin: 0 auto 70px; }
.vise-header p { color: var(--text-muted); margin-top: 16px; }
.vise-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.vise-table-head {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: 0;
  background: var(--blue);
  padding: 0;
}
[data-theme="dark"] .vise-table-head { background: var(--surface); }
.vise-th {
  padding: 18px 28px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
}
[data-theme="dark"] .vise-th { color: var(--text-sub); }
.vise-rows { padding: 8px 0; }
.vise-row {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  align-items: center;
  padding: 0;
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
  cursor: default;
}
.vise-row:last-child { border-bottom: none; }
.vise-row:hover { background: var(--surface); }
.vise-cell {
  padding: 24px 28px;
}
.vise-indicator-name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.vise-indicator-icon { font-size: 1.4rem; margin-bottom: 6px; }
.vise-quotient-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--surface);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.vise-quotient-tag strong { color: var(--blue-lite); }
[data-theme="dark"] .vise-quotient-tag strong { color: var(--blue-lite); }
.vise-def { font-size: 0.88rem; color: var(--text-muted); line-height: 1.55; }

.vise-full-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.vise-mini-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: all var(--transition);
}
.vise-mini-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(13,27,62,0.2);
}
[data-theme="dark"] .vise-mini-card:hover { border-color: rgba(74,122,218,0.2); }
.vise-mini-icon { font-size: 1.8rem; margin-bottom: 10px; }
.vise-mini-q { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-lite); margin-bottom: 4px; }
.vise-mini-name { font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; }
.vise-mini-def { font-size: 0.78rem; color: var(--text-muted); line-height: 1.5; }

/* ─── WHY iViRTH ─────────────────────────────────────────────── */
#why {
  background: var(--bg-alt);
  padding: 100px 0;
}
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.why-text {}
.why-text p { color: var(--text-muted); margin-top: 16px; margin-bottom: 40px; }
.why-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.why-cta-group { display: flex; flex-direction: column; gap: 12px; }
.why-stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 36px;
}
.why-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.why-stat-val { font-size: 1.6rem; font-weight: 800; color: var(--text); }
.why-stat-val em { font-style: normal; color: var(--blue-lite); }
.why-stat-desc { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }
.why-advantages { display: grid; gap: 16px; }
.why-adv-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all var(--transition);
}
.why-adv-card:hover {
  border-color: rgba(13,27,62,0.2);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}
[data-theme="dark"] .why-adv-card:hover { border-color: rgba(74,122,218,0.2); }
.why-adv-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: var(--surface);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.why-adv-content {}
.why-adv-title { font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; }
.why-adv-desc { font-size: 0.83rem; color: var(--text-muted); line-height: 1.55; }

/* ─── ROADMAP ────────────────────────────────────────────────── */
#roadmap { padding: 100px 0; }
.roadmap-header { text-align: center; max-width: 560px; margin: 0 auto 70px; }
.roadmap-header p { color: var(--text-muted); margin-top: 16px; }
.roadmap-phases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; position: relative; }
.roadmap-phases::before {
  content: '';
  position: absolute;
  top: 56px;
  left: calc(16.6% + 24px);
  right: calc(16.6% + 24px);
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--brown));
  opacity: 0.3;
  z-index: 0;
}
.rp {
  position: relative;
  z-index: 1;
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}
.rp:hover { box-shadow: var(--shadow); border-color: rgba(13,27,62,0.15); }
[data-theme="dark"] .rp:hover { border-color: rgba(74,122,218,0.2); }
.rp-num {
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  margin-bottom: 20px;
}
.rp-num-1 { background: var(--blue); color: white; }
.rp-num-2 { background: var(--brown); color: white; }
.rp-num-3 { background: linear-gradient(135deg, var(--blue), var(--brown)); color: white; }
.rp-phase-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-sub);
  margin-bottom: 6px;
}
.rp-duration {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  background: var(--surface);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 14px;
  border: 1px solid var(--border);
}
.rp-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 12px; }
.rp-items { display: flex; flex-direction: column; gap: 8px; }
.rp-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.rp-item-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 5px;
}
.rp-item-dot-1 { background: var(--blue-lite); }
[data-theme="dark"] .rp-item-dot-1 { background: var(--blue-lite); }
.rp-item-dot-2 { background: var(--brown-warm); }
.rp-item-dot-3 { background: linear-gradient(135deg, var(--blue-lite), var(--brown-warm)); }

/* ─── CTA ────────────────────────────────────────────────────── */
#cta {
  padding: 100px 0;
  background: var(--blue);
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] #cta { background: var(--bg-alt); }
.cta-bg-blob {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196,145,92,0.12) 0%, transparent 70%);
}
.cta-bg-blob-1 { width: 600px; height: 600px; top: -200px; right: -100px; }
.cta-bg-blob-2 { width: 400px; height: 400px; bottom: -150px; left: -50px; }
.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.cta-inner h2 { color: white; margin-bottom: 20px; }
[data-theme="dark"] .cta-inner h2 { color: var(--text); }
.cta-inner p { color: rgba(255,255,255,0.65); margin-bottom: 40px; }
[data-theme="dark"] .cta-inner p { color: var(--text-muted); }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.btn-white {
  background: white;
  color: var(--blue);
  border: 2px solid white;
}
.btn-white:hover {
  background: rgba(255,255,255,0.9);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
[data-theme="dark"] .btn-white {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.btn-outline-white {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline-white:hover {
  border-color: white;
  background: rgba(255,255,255,0.08);
}
[data-theme="dark"] .btn-outline-white {
  color: var(--text);
  border-color: var(--border);
}
.cta-trust {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.cta-trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
}
[data-theme="dark"] .cta-trust-item { color: var(--text-sub); }
.cta-trust-item::before { content: '✓'; color: #68D391; font-weight: 700; }

/* ─── FOOTER ─────────────────────────────────────────────────── */
footer {
  background: var(--black);
  color: rgba(255,255,255,0.65);
  padding: 64px 0 36px;
}
[data-theme="dark"] footer { background: #040509; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand {}
.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-logo-mark {
  width: 32px; height: 32px;
  background: var(--blue-lite);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem;
  font-weight: 800;
  color: white;
  letter-spacing: 0.05em;
}
.footer-logo-title { font-size: 0.95rem; font-weight: 700; color: white; }
.footer-desc {
  font-size: 0.83rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.45);
  max-width: 260px;
}
.footer-col-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer-links a:hover { color: white; }
.footer-divider {
  height: 1px;
  background: rgba(255,255,255,0.06);
  margin-bottom: 28px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy { font-size: 0.78rem; color: rgba(255,255,255,0.3); }
.footer-copy a { color: rgba(255,255,255,0.45); }
.footer-copy a:hover { color: white; }
.footer-tagline {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.25);
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-tagline span { color: var(--brown-warm); }

/* ─── Mobile Nav Drawer ─────────────────────────────────────── */
.mobile-nav {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 999;
  display: none;
  flex-direction: column;
  background: var(--bg);
  padding: 24px;
  padding-top: calc(var(--nav-h) + 24px);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav-links a {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
}
.mobile-nav-links a:hover { color: var(--text); background: var(--surface); }
.mobile-nav-ctas {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ─── Animations ─────────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; gap: 60px; }
  .hero-visual { display: none; }
  .tech-intro { grid-template-columns: 1fr; gap: 40px; }
  .tech-features { grid-template-columns: repeat(2, 1fr); }
  .helix-section { grid-template-columns: 1fr; }
  .vp-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  section { padding: 70px 0; }
  .nav-links, .nav-cta { display: none; }
  .nav-mobile-toggle { display: flex; }
  .mobile-nav { display: flex; }
  .tech-features { grid-template-columns: 1fr; }
  .roadmap-phases { grid-template-columns: 1fr; }
  .roadmap-phases::before { display: none; }
  .vise-table-head, .vise-row { grid-template-columns: 1fr; }
  .vise-th:not(:first-child) { display: none; }
  .vise-full-grid { grid-template-columns: 1fr 1fr; }
  .why-stat-row { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .vise-full-grid { grid-template-columns: 1fr; }
  .hp-metrics { grid-template-columns: 1fr 1fr 1fr; }
}

/* ─── Utility ────────────────────────────────────────────────── */
.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8  { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-20 { margin-bottom: 20px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.flex  { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-sub); }

/* Selection */
::selection { background: rgba(13,27,62,0.15); color: var(--text); }
[data-theme="dark"] ::selection { background: rgba(74,122,218,0.25); }