/* =============================================
   DOT Presença Inteligente — Landing Page CSS
   ============================================= */

/* === CSS Variables === */
:root {
  --bg-primary: #050714;
  --bg-secondary: #080c1f;
  --bg-card: rgba(255, 255, 255, 0.035);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --bg-glass: rgba(10, 14, 35, 0.75);

  --blue-500: #3b82f6;
  --blue-400: #60a5fa;
  --blue-300: #93c5fd;
  --purple-500: #7c3aed;
  --purple-400: #a78bfa;
  --purple-300: #c4b5fd;
  --cyan-400: #22d3ee;
  --neon-blue: #00b4ff;
  --neon-purple: #9b59ff;

  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #7c3aed 100%);
  --gradient-hero: linear-gradient(135deg, #00b4ff 0%, #9b59ff 60%, #7c3aed 100%);
  --gradient-card: linear-gradient(135deg, rgba(59,130,246,0.1) 0%, rgba(124,58,237,0.1) 100%);
  --gradient-glow-blue: radial-gradient(ellipse at center, rgba(59,130,246,0.25) 0%, transparent 70%);
  --gradient-glow-purple: radial-gradient(ellipse at center, rgba(124,58,237,0.25) 0%, transparent 70%);

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-glow: rgba(59, 130, 246, 0.3);
  --border-purple: rgba(124, 58, 237, 0.35);

  --shadow-card: 0 4px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow-blue: 0 0 40px rgba(59, 130, 246, 0.2);
  --shadow-glow-purple: 0 0 40px rgba(124, 58, 237, 0.2);
  --shadow-btn: 0 0 24px rgba(59, 130, 246, 0.4);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 999px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;
  --space-4xl: 128px;

  --transition: 0.22s ease;
  --transition-slow: 0.4s ease;
  --max-width: 1200px;
  --header-height: 72px;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

/* === Utility Classes === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
}

.section--tight {
  padding: var(--space-3xl) 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--neon-blue);
  background: rgba(0, 180, 255, 0.08);
  border: 1px solid rgba(0, 180, 255, 0.2);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.section-label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon-blue);
  box-shadow: 0 0 8px var(--neon-blue);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section-title--gradient {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-top: var(--space-md);
  line-height: 1.7;
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

/* === Icons (inline SVG) === */
.icon {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  flex-shrink: 0;
}

.icon-lg { width: 28px; height: 28px; }

.gradient-text {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition);
}

.btn:hover::after { background: rgba(255,255,255,0.08); }

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(59, 130, 246, 0.55);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  border-color: var(--border-glow);
  color: var(--blue-300);
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.4);
}

.btn-lg {
  padding: 17px 36px;
  font-size: 1rem;
}

/* === Card === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card), var(--shadow-glow-blue);
}

.card:hover::before { opacity: 1; }

/* === Divider === */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle) 30%, var(--border-subtle) 70%, transparent);
  margin: 0 auto;
  max-width: var(--max-width);
}

/* =============================================
   HEADER / NAV
   ============================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(5, 7, 20, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition);
}

.header.scrolled {
  background: rgba(5, 7, 20, 0.92);
  border-color: rgba(59, 130, 246, 0.12);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-lg);
}

.nav-logo {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  text-decoration: none;
}

/* DOT wordmark (igual ao app/PDF) — "O" é um emblema circular com check */
.logo-wordmark {
  display: inline-flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1;
  color: var(--text-primary);
}

.logo-o {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 0.9em;
  height: 0.9em;
  margin: 0 0.04em;
  position: relative;
  top: 0.02em;
}

.logo-o svg { width: 100%; height: 100%; display: block; }

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
  box-shadow: 0 0 18px rgba(59, 130, 246, 0.45);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-name {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.logo-descriptor {
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: rgba(5, 7, 20, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-lg);
  z-index: 99;
  flex-direction: column;
  gap: var(--space-sm);
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 12px var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.mobile-menu a:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

.mobile-menu .btn { width: 100%; margin-top: var(--space-sm); }

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

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

.hero-glow-1 {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(59,130,246,0.18) 0%, transparent 65%);
}

.hero-glow-2 {
  position: absolute;
  bottom: 10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(124,58,237,0.15) 0%, transparent 65%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 40%, transparent 100%);
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-4xl);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

.hero-content { max-width: 560px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--purple-300);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-xl);
}

.hero-badge .dot-live {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: pulse-live 2s ease-in-out infinite;
}

@keyframes pulse-live {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero-title .line-gradient {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-stat-number {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Hero Device Photos (fotos reais do app) */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  height: 520px;
}

.hero-shots {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-shot-glow {
  position: absolute;
  top: 42%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 115%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(59,130,246,0.22) 0%, rgba(124,58,237,0.16) 45%, transparent 72%);
  filter: blur(8px);
  pointer-events: none;
  z-index: 0;
}

.hero-shot-laptop {
  position: absolute;
  top: 4%;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 500px;
  z-index: 1;
  filter: drop-shadow(0 28px 55px rgba(0,0,0,0.55));
  animation: heroFloat 7s ease-in-out infinite;
}

.hero-shot-phone {
  position: absolute;
  width: 27%;
  max-width: 150px;
  z-index: 2;
  filter: drop-shadow(0 22px 42px rgba(0,0,0,0.6));
}

.hero-shot-phone.left {
  left: -3%;
  bottom: 0;
  z-index: 3;
  animation: heroFloat 6s ease-in-out infinite;
}

.hero-shot-phone.right {
  right: -3%;
  bottom: 9%;
  animation: heroFloat 6.5s ease-in-out infinite reverse;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* keep laptop's translateX while floating */
.hero-shot-laptop { animation-name: heroFloatLaptop; }
@keyframes heroFloatLaptop {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

/* Dashboard mockup (center/back) */
.device-dashboard {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 340px;
  background: rgba(8, 12, 31, 0.95);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-xl);
  padding: 20px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 40px rgba(59,130,246,0.12);
  backdrop-filter: blur(12px);
  z-index: 2;
}

.device-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.device-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.device-status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.6875rem;
  color: #22c55e;
  font-weight: 600;
}

.device-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: pulse-live 2s ease-in-out infinite;
}

.dash-metric-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.dash-metric {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: var(--radius-md);
  padding: 12px;
  text-align: center;
}

.dash-metric-num {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--blue-400);
  letter-spacing: -0.03em;
}

.dash-metric-lbl {
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.dash-chart {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: 12px;
}

.dash-chart-label {
  font-size: 0.625rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 52px;
}

.chart-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, var(--blue-500), rgba(59,130,246,0.3));
  transition: height var(--transition);
}

.dash-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.6875rem;
}

.dash-row:last-child { border-bottom: none; }

.dash-row-label { color: var(--text-muted); }

.dash-row-value { color: var(--text-primary); font-weight: 600; }

.dash-badge {
  font-size: 0.6rem;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  font-weight: 700;
}

.badge-ok { background: rgba(34,197,94,0.15); color: #22c55e; }
.badge-warn { background: rgba(234,179,8,0.15); color: #eab308; }
.badge-err { background: rgba(239,68,68,0.15); color: #ef4444; }

/* Phone mockups */
.device-phone {
  position: absolute;
  width: 150px;
  background: rgba(8, 12, 31, 0.95);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  padding: 14px 12px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
  z-index: 3;
}

.device-phone-student {
  left: 0;
  bottom: 20px;
  border-color: rgba(124, 58, 237, 0.3);
  box-shadow: 0 16px 40px rgba(0,0,0,0.5), 0 0 24px rgba(124,58,237,0.15);
}

.device-phone-professor {
  right: 0;
  bottom: 60px;
  border-color: rgba(0, 180, 255, 0.3);
  box-shadow: 0 16px 40px rgba(0,0,0,0.5), 0 0 24px rgba(0,180,255,0.15);
}

.phone-notch {
  width: 50px;
  height: 4px;
  background: var(--border-subtle);
  border-radius: 2px;
  margin: 0 auto 12px;
}

.phone-app-label {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 10px;
}

.qr-mock {
  width: 80px;
  height: 80px;
  margin: 0 auto 10px;
  background:
    repeating-conic-gradient(rgba(59,130,246,0.5) 0% 25%, rgba(59,130,246,0.08) 0% 50%)
    0 0 / 8px 8px;
  border: 2px solid rgba(59,130,246,0.3);
  border-radius: var(--radius-sm);
  position: relative;
}

.qr-mock::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 2px solid rgba(59,130,246,0.5);
  border-radius: 3px;
}

.phone-timer {
  text-align: center;
  font-size: 0.6875rem;
  color: var(--neon-blue);
  font-weight: 700;
  font-family: var(--font-mono);
  margin-bottom: 8px;
}

.phone-timer span { color: var(--text-muted); font-weight: 400; }

.phone-btn-mock {
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  padding: 6px 10px;
  font-size: 0.6rem;
  font-weight: 700;
  text-align: center;
  color: #fff;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.phone-checklist {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}

.phone-check-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.6rem;
  color: var(--text-secondary);
}

.check-icon {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.5rem;
  flex-shrink: 0;
  font-style: normal;
}

.check-ok { background: rgba(34,197,94,0.15); color: #22c55e; border: 1px solid rgba(34,197,94,0.3); }
.check-pending { background: rgba(234,179,8,0.1); color: #eab308; border: 1px solid rgba(234,179,8,0.2); animation: blink 1.5s ease-in-out infinite; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* =============================================
   PROBLEM SECTION
   ============================================= */
.problems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition);
}

.problem-card:hover {
  border-color: rgba(239,68,68,0.3);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(239,68,68,0.08);
}

.problem-card:hover::before { opacity: 1; }

.problem-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f87171;
  margin-bottom: var(--space-md);
}

.problem-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.problem-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.metric-block {
  margin-top: var(--space-2xl);
  background: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(124,58,237,0.08));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.metric-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-glow-blue);
  opacity: 0.3;
}

.metric-block-number {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.metric-block-text {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: var(--space-sm);
  position: relative;
}

/* =============================================
   OBJECTION / COMPARISON SECTION
   ============================================= */
.objection-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.objection-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
  margin-top: var(--space-2xl);
}

.objection-intro {
  background: linear-gradient(135deg, rgba(124,58,237,0.08), rgba(59,130,246,0.05));
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

.objection-intro p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.9375rem;
}

.objection-intro .highlight-phrase {
  display: block;
  margin-top: var(--space-lg);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  border-left: 3px solid var(--neon-blue);
  padding-left: var(--space-md);
  line-height: 1.5;
}

.comparison-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.comparison-col {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.comparison-col--dot {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow-blue);
}

.comparison-col-header {
  padding: 14px var(--space-md);
  font-size: 0.8125rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-col-header--sistem {
  background: rgba(255,255,255,0.03);
  color: var(--text-muted);
}

.comparison-col-header--dot {
  background: var(--gradient-primary);
  color: #fff;
}

.comparison-list {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.comparison-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.comparison-item-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.icon-neutral { background: rgba(100,116,139,0.2); color: var(--text-muted); }
.icon-check { background: rgba(59,130,246,0.15); color: var(--blue-400); }

/* =============================================
   HOW IT WORKS
   ============================================= */
.steps-container {
  margin-top: var(--space-2xl);
  position: relative;
}

.steps-line {
  position: absolute;
  left: 27px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--neon-blue), var(--neon-purple), transparent);
  opacity: 0.3;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.step-item {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 2px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: var(--blue-400);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 20px rgba(59,130,246,0.2);
  transition: all var(--transition);
}

.step-item:hover .step-number {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 30px rgba(59,130,246,0.4);
}

.step-content {
  flex: 1;
  padding-top: 12px;
}

.step-role {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--neon-blue);
  margin-bottom: 4px;
}

.step-content h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.step-content p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.steps-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.flow-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  width: 100%;
  max-width: 340px;
  box-shadow: var(--shadow-glow-blue);
}

.flow-diagram-title {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.flow-nodes {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.flow-node {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  text-align: left;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.flow-node:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  background: rgba(59,130,246,0.05);
}

.flow-node-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-400);
  flex-shrink: 0;
}

.flow-node-icon .icon { width: 18px; height: 18px; }

.flow-arrow {
  text-align: center;
  color: var(--border-glow);
  font-size: 0.875rem;
}

.how-it-works-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
  margin-top: var(--space-xl);
}

/* =============================================
   SECURITY
   ============================================= */
.security-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
}

.security-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(ellipse, rgba(124,58,237,0.08) 0%, transparent 65%);
  pointer-events: none;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.security-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.security-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition);
}

.security-card:hover {
  border-color: var(--border-purple);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(124,58,237,0.15);
}

.security-card:hover::after { opacity: 1; }

.security-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto var(--space-md);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(59,130,246,0.12), rgba(124,58,237,0.12));
  border: 1px solid var(--border-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--purple-300);
  transition: all var(--transition);
}

.security-card:hover .security-icon {
  color: #fff;
  border-color: var(--neon-purple);
  box-shadow: 0 0 22px rgba(124,58,237,0.35);
}

.security-card h3 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.security-key-phrase {
  margin-top: var(--space-2xl);
  text-align: center;
  padding: var(--space-xl);
  background: linear-gradient(135deg, rgba(124,58,237,0.08), rgba(59,130,246,0.08));
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-xl);
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
  position: relative;
}

.security-key-phrase strong { color: var(--text-primary); }

/* =============================================
   BENEFITS
   ============================================= */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition);
}

.benefit-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-blue);
}

.benefit-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--gradient-card);
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-400);
  margin-bottom: var(--space-md);
}

.benefit-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.benefit-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* =============================================
   PILOT
   ============================================= */
.pilot-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.pilot-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
  margin-top: var(--space-2xl);
}

.pilot-model {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-glow-blue);
}

.pilot-model-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--neon-blue);
  margin-bottom: var(--space-md);
}

.pilot-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pilot-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.pilot-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #22c55e;
  font-size: 0.7rem;
  font-style: normal;
  flex-shrink: 0;
}

.pilot-metrics {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

.pilot-metrics-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--purple-400);
  margin-bottom: var(--space-md);
}

.pilot-metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.pilot-metric-item {
  background: rgba(124,58,237,0.06);
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: var(--radius-md);
  padding: 14px;
}

.pilot-metric-item p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.pilot-highlight {
  margin-top: var(--space-xl);
  background: linear-gradient(135deg, rgba(59,130,246,0.06), rgba(124,58,237,0.06));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.pilot-highlight strong { color: var(--text-primary); }

/* =============================================
   TARGET AUDIENCE
   ============================================= */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.audience-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  transition: all var(--transition);
}

.audience-card:hover {
  border-color: var(--border-purple);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(124,58,237,0.15);
}

.audience-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(124,58,237,0.1));
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-300);
  transition: all var(--transition);
}

.audience-card:hover .audience-icon {
  color: #fff;
  border-color: var(--border-purple);
  box-shadow: 0 0 22px rgba(124,58,237,0.25);
}

.audience-card h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.audience-supporting {
  margin-top: var(--space-2xl);
  text-align: center;
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  padding: var(--space-xl);
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

/* =============================================
   INTEGRATION
   ============================================= */
.integration-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.integration-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.integration-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition);
}

.integration-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-blue);
}

.integration-card-num {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--neon-blue);
  margin-bottom: var(--space-sm);
}

.integration-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.integration-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.integration-highlight {
  margin-top: var(--space-2xl);
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.01em;
}

/* =============================================
   PLATFORM FEATURES
   ============================================= */
.platform-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-top: var(--space-2xl);
}

.features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  transition: all var(--transition);
}

.feature-item:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  background: rgba(59,130,246,0.04);
}

.feature-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-primary);
  flex-shrink: 0;
}

.platform-visual {
  position: relative;
}

.platform-dashboard {
  background: rgba(8, 12, 31, 0.95);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-glow-blue), 0 24px 64px rgba(0,0,0,0.5);
}

.platform-dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
}

.platform-dash-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

.platform-dash-live {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.6875rem;
  color: #22c55e;
  font-weight: 600;
}

.platform-dash-live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse-live 2s ease-in-out infinite;
}

.platform-metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.platform-metric {
  background: rgba(59,130,246,0.07);
  border: 1px solid rgba(59,130,246,0.15);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
}

.platform-metric-num {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

.platform-metric-lbl {
  font-size: 0.6875rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.notification-feed {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.notification-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.notif-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 3px;
}

.notif-ok { background: #22c55e; }
.notif-warn { background: #eab308; }
.notif-info { background: var(--blue-400); }

.notif-time {
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 2px;
  display: block;
}

/* =============================================
   CTA FINAL
   ============================================= */
.cta-section {
  position: relative;
  overflow: hidden;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}

.cta-bg-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(59,130,246,0.12) 0%, rgba(124,58,237,0.08) 40%, transparent 70%);
  pointer-events: none;
}

.cta-box {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  padding: var(--space-4xl) 0;
}

.cta-box .section-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  margin-bottom: var(--space-md);
}

.cta-box .section-subtitle {
  font-size: 1.0625rem;
  margin-bottom: var(--space-xl);
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.cta-support-text {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--border-subtle);
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: var(--space-md);
  line-height: 1.65;
  max-width: 220px;
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-col ul li a:hover { color: var(--text-secondary); }

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.5;
}

.footer-contact-item .icon {
  width: 16px;
  height: 16px;
  color: var(--blue-400);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

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

.footer-badges {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* =============================================
   APP SHOWCASE  (real screens / CSS recreations)
   ============================================= */
.app-showcase {
  position: relative;
  overflow: hidden;
}

.app-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(124,58,237,0.1) 0%, rgba(59,130,246,0.06) 40%, transparent 70%);
  pointer-events: none;
}

/* --- Image-swap system ---
   Drop a real PNG into /assets and it shows automatically on top of the
   CSS recreation. If the file is missing, onerror hides it and the
   vector mockup stays visible. Either way the site looks complete. */
.shot {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  z-index: 5;
  border-radius: inherit;
}

/* --- Browser / laptop frame (institutional dashboard) --- */
.browser-frame {
  position: relative;
  max-width: 920px;
  margin: var(--space-2xl) auto 0;
  background: #0a0e22;
  border: 1px solid rgba(59,130,246,0.22);
  border-radius: var(--radius-lg);
  box-shadow: 0 40px 120px rgba(0,0,0,0.6), var(--shadow-glow-blue);
  overflow: hidden;
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border-subtle);
}

.browser-dots { display: flex; gap: 7px; }
.browser-dots span {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--border-subtle);
}
.browser-dots span:nth-child(1) { background: #ff5f57; }
.browser-dots span:nth-child(2) { background: #febc2e; }
.browser-dots span:nth-child(3) { background: #28c840; }

.browser-url {
  flex: 1;
  max-width: 360px;
  margin: 0 auto;
  text-align: center;
  font-size: 0.6875rem;
  color: var(--text-muted);
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 4px 14px;
  font-family: var(--font-mono);
}

.browser-screen {
  position: relative;
  aspect-ratio: 16 / 10;
}

/* --- Dashboard recreation --- */
.dash {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 168px 1fr;
  font-size: 0.7rem;
  background: var(--bg-primary);
}

.dash-side {
  border-right: 1px solid var(--border-subtle);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  background: rgba(8,12,31,0.6);
}

.dash-side .logo-mark { width: 26px; height: 26px; border-radius: 7px; font-size: 0.8rem; margin-bottom: 14px; }

.dash-nav-item {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-weight: 500;
}
.dash-nav-item .icon { width: 14px; height: 14px; }
.dash-nav-item.active { background: rgba(59,130,246,0.14); color: var(--blue-300); }

.dash-main { padding: 16px; display: flex; flex-direction: column; gap: 12px; overflow: hidden; }

.dash-main-head { display: flex; align-items: baseline; justify-content: space-between; }
.dash-main-head h4 { font-size: 0.95rem; color: var(--text-primary); font-weight: 700; }
.dash-main-head span { font-size: 0.6rem; color: var(--text-muted); }

.dash-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; }
.dash-kpi {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); padding: 10px;
}
.dash-kpi-lbl { font-size: 0.52rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.dash-kpi-val { font-size: 1.05rem; font-weight: 800; color: var(--text-primary); letter-spacing: -0.02em; margin-top: 3px; }
.dash-kpi-val.green { color: #22c55e; }
.dash-kpi-sub { font-size: 0.5rem; color: var(--text-muted); margin-top: 1px; }

.dash-grid2 { display: grid; grid-template-columns: 1.3fr 1fr; gap: 12px; flex: 1; min-height: 0; }
.dash-panel {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); padding: 12px;
}
.dash-panel-title { font-size: 0.62rem; color: var(--text-secondary); font-weight: 600; margin-bottom: 10px; display:flex; justify-content:space-between; }
.dash-panel-title a { color: var(--blue-400); font-size: 0.55rem; }

.dash-bar-row { display: flex; align-items: center; gap: 8px; margin-bottom: 7px; font-size: 0.55rem; color: var(--text-muted); }
.dash-bar-row .lbl { width: 88px; flex-shrink: 0; color: var(--text-secondary); }
.dash-bar-track { flex: 1; height: 5px; background: rgba(255,255,255,0.05); border-radius: 3px; overflow: hidden; }
.dash-bar-fill { height: 100%; background: var(--gradient-primary); border-radius: 3px; }
.dash-bar-row .pct { width: 30px; text-align: right; color: var(--text-secondary); }

/* Donut chart */
.donut-wrap { display: flex; align-items: center; gap: 12px; }
.donut {
  width: 96px; height: 96px; border-radius: 50%;
  background: conic-gradient(#3b82f6 0% 87.6%, #ef4444 87.6% 97.4%, #eab308 97.4% 100%);
  position: relative; flex-shrink: 0;
}
.donut::after {
  content: ''; position: absolute; inset: 22%;
  background: var(--bg-card); border-radius: 50%;
}
.donut-legend { display: flex; flex-direction: column; gap: 6px; font-size: 0.55rem; }
.donut-legend div { display: flex; align-items: center; gap: 6px; color: var(--text-secondary); }
.donut-legend i { width: 8px; height: 8px; border-radius: 2px; font-style: normal; }

/* --- Phone frame (reusable) --- */
.showcase-apps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.app-card { text-align: center; }

.phone-frame {
  position: relative;
  width: 248px;
  aspect-ratio: 9 / 19.5;
  margin: 0 auto var(--space-lg);
  background: #05060f;
  border: 9px solid #15161c;
  border-radius: 38px;
  box-shadow: 0 30px 70px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.04);
  overflow: hidden;
}

.phone-frame.glow-blue { box-shadow: 0 30px 70px rgba(0,0,0,0.55), 0 0 40px rgba(0,180,255,0.18), 0 0 0 1px rgba(255,255,255,0.04); }
.phone-frame.glow-purple { box-shadow: 0 30px 70px rgba(0,0,0,0.55), 0 0 40px rgba(124,58,237,0.2), 0 0 0 1px rgba(255,255,255,0.04); }
.phone-frame.glow-green { box-shadow: 0 30px 70px rgba(0,0,0,0.55), 0 0 40px rgba(34,197,94,0.16), 0 0 0 1px rgba(255,255,255,0.04); }

.phone-frame::before {
  content: '';
  position: absolute;
  top: 9px; left: 50%; transform: translateX(-50%);
  width: 78px; height: 22px;
  background: #15161c;
  border-radius: 0 0 14px 14px;
  z-index: 6;
}

.phone-screen {
  position: absolute;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.scr-statusbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px 4px;
  font-size: 0.6rem; font-weight: 700; color: var(--text-primary);
}
.scr-statusbar .sb-icons { display: flex; gap: 4px; align-items: center; opacity: 0.85; }
.scr-statusbar .sb-icons span { display: inline-block; }

.scr-topbar {
  display: flex; align-items: center; justify-content: center;
  gap: 6px; padding: 6px 16px 12px;
}
.scr-logo { font-weight: 800; font-size: 0.85rem; letter-spacing: -0.02em; color: var(--text-primary); }
.scr-logo b { color: var(--neon-blue); }

.scr-body { flex: 1; padding: 0 16px; display: flex; flex-direction: column; overflow: hidden; }
.scr-tabbar {
  display: flex; justify-content: space-around;
  padding: 8px 6px 12px;
  border-top: 1px solid var(--border-subtle);
}
.scr-tab { display: flex; flex-direction: column; align-items: center; gap: 3px; font-size: 0.42rem; color: var(--text-muted); }
.scr-tab .icon { width: 15px; height: 15px; }
.scr-tab.active { color: var(--blue-400); }

/* Professor OTP screen */
.scr-card-head {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); padding: 10px; margin-bottom: 12px;
}
.scr-card-head .ic {
  width: 32px; height: 32px; border-radius: 9px; flex-shrink: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.18), rgba(124,58,237,0.18));
  border: 1px solid var(--border-purple);
  display: flex; align-items: center; justify-content: center; color: var(--purple-300);
}
.scr-card-head .ic .icon { width: 16px; height: 16px; }
.scr-card-head h5 { font-size: 0.66rem; color: var(--text-primary); font-weight: 700; }
.scr-card-head p { font-size: 0.52rem; color: var(--text-muted); line-height: 1.35; margin-top: 1px; }

.scr-section-label { font-size: 0.55rem; color: var(--text-secondary); font-weight: 600; margin-bottom: 8px; }

.scr-class {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 4px; border-bottom: 1px solid var(--border-subtle);
}
.scr-class .ci {
  width: 26px; height: 26px; border-radius: 8px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 0.6rem;
  background: rgba(124,58,237,0.14); color: var(--purple-300);
}
.scr-class .ci.green { background: rgba(34,197,94,0.14); color: #22c55e; }
.scr-class h6 { font-size: 0.6rem; color: var(--text-primary); font-weight: 600; }
.scr-class span { font-size: 0.48rem; color: var(--text-muted); }

.scr-otp {
  margin-top: auto;
  text-align: center;
  padding: 12px 0 6px;
}
.scr-otp-label { font-size: 0.55rem; color: var(--text-secondary); margin-bottom: 6px; }
.scr-otp-code {
  font-size: 1.5rem; font-weight: 800; letter-spacing: 0.22em;
  font-family: var(--font-mono);
  background: var(--gradient-hero);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.scr-otp-timer { font-size: 0.5rem; color: #eab308; margin-top: 4px; display: flex; align-items: center; justify-content: center; gap: 4px; }
.scr-btn-row { display: flex; gap: 8px; margin-top: 10px; }
.scr-btn {
  flex: 1; padding: 8px; border-radius: var(--radius-full);
  font-size: 0.55rem; font-weight: 700; text-align: center;
  background: var(--gradient-primary); color: #fff;
}
.scr-btn.outline { background: rgba(255,255,255,0.05); border: 1px solid var(--border-subtle); color: var(--text-secondary); }
.scr-btn.danger { background: #ef4444; }

/* Aluno success screen */
.scr-center {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center; gap: 10px;
  padding: 10px 4px;
}
.scr-success-ring {
  width: 78px; height: 78px; border-radius: 50%;
  background: radial-gradient(circle, #22c55e 0%, #16a34a 100%);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 44px rgba(34,197,94,0.5);
}
.scr-success-ring .icon { width: 38px; height: 38px; stroke-width: 2.5; color: #fff; }
.scr-center h4 { font-size: 0.95rem; color: var(--text-primary); font-weight: 800; }
.scr-center p { font-size: 0.62rem; color: var(--text-secondary); line-height: 1.5; }
.scr-center p strong { color: var(--text-primary); }
.scr-datechip {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); padding: 9px 12px; margin-top: 4px; width: 100%;
}
.scr-datechip .icon { width: 16px; height: 16px; color: var(--purple-300); }
.scr-datechip div { text-align: left; }
.scr-datechip .dl { font-size: 0.5rem; color: var(--text-muted); }
.scr-datechip .dv { font-size: 0.58rem; color: var(--text-primary); font-weight: 600; }

/* Mobile institution panel screen */
.scr-mini-kpis { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-bottom: 10px; }
.scr-mini-kpi { background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); padding: 8px; }
.scr-mini-kpi .v { font-size: 0.85rem; font-weight: 800; color: var(--blue-400); letter-spacing: -0.02em; }
.scr-mini-kpi .v.red { color: #ef4444; }
.scr-mini-kpi .l { font-size: 0.45rem; color: var(--text-muted); text-transform: uppercase; }
.scr-spark {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); padding: 10px; margin-bottom: 10px;
}
.scr-spark-title { font-size: 0.52rem; color: var(--text-secondary); margin-bottom: 8px; }
.scr-spark svg { width: 100%; height: 40px; display: block; }
.scr-donut-row { display: flex; align-items: center; gap: 10px; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 10px; }
.scr-donut-row .donut { width: 60px; height: 60px; }
.scr-donut-row .donut::after { background: var(--bg-card); }

.app-card h3 { font-size: 1.0625rem; font-weight: 700; color: var(--text-primary); margin-bottom: 6px; }
.app-card p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; max-width: 280px; margin: 0 auto; }
.app-card .app-role {
  display: inline-block; font-size: 0.625rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--neon-blue); margin-bottom: 8px;
}

/* =============================================
   ANIMATIONS
   ============================================= */

/* Hero auto-play keyframes (no JS needed) */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-in {
  opacity: 0;
  animation: fadeUp 0.7s ease forwards;
}

.hero-in-d1 { animation-delay: 0.12s; }
.hero-in-d2 { animation-delay: 0.26s; }
.hero-in-d3 { animation-delay: 0.4s; }

/* Scroll-triggered fade-in for below-fold sections */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* No-JS safety net: if scripts don't run, content must still show.
   The <noscript> block in the HTML sets .no-js on <html>. */
.no-js .fade-in,
.no-js .hero-in {
  opacity: 1;
  transform: none;
  animation: none;
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .fade-in,
  .hero-in {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .security-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
  .hero .container { gap: var(--space-2xl); }
}

@media (max-width: 900px) {
  .showcase-apps { grid-template-columns: 1fr; gap: var(--space-2xl); max-width: 320px; margin-left: auto; margin-right: auto; }
  .dash { font-size: 0.62rem; grid-template-columns: 130px 1fr; }
  .dash-kpis { grid-template-columns: 1fr 1fr; }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: var(--space-2xl);
  }

  .hero-content { max-width: 100%; }
  .hero-description { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { height: 380px; margin-top: var(--space-xl); }

  .device-dashboard { width: 280px; }
  .device-phone { width: 130px; }

  .how-it-works-layout { grid-template-columns: 1fr; }
  .steps-visual { display: none; }
  .objection-content { grid-template-columns: 1fr; }
  .comparison-table { grid-template-columns: 1fr 1fr; }
  .pilot-layout { grid-template-columns: 1fr; }
  .platform-layout { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --header-height: 64px; }

  .nav-links { display: none; }
  .nav-actions .btn { display: none; }
  .hamburger { display: flex; }

  .section { padding: var(--space-3xl) 0; }

  .problems-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: 1fr; }
  .integration-grid { grid-template-columns: 1fr; }
  .features-list { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr 1fr; }
  .security-grid { grid-template-columns: 1fr 1fr; }
  .pilot-metric-grid { grid-template-columns: 1fr; }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom { flex-direction: column; text-align: center; }

  .hero-visual { height: 320px; }
  .device-dashboard { width: 240px; }
  .device-phone { width: 110px; }
  .device-phone-student { left: -10px; }
  .device-phone-professor { right: -10px; }
}

@media (max-width: 600px) {
  .browser-screen { aspect-ratio: auto; height: 340px; }
  .dash { grid-template-columns: 1fr; }
  .dash-side { display: none; }
  .dash-grid2 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .section-title { font-size: 1.625rem; }
  .hero-stats { flex-direction: column; gap: var(--space-md); text-align: center; }
  .audience-grid { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: 1fr; }
  .comparison-table { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .hero-visual { height: 260px; }
}