/* ==========================================================================
   RADWAY RADIOLOGIA ODONTOLÓGICA — MODERN DESIGN SYSTEM
   Cores Oficiais:
   - Amarelo Motorsport: #E5C847
   - Verde Britânico:    #006B3F
   - Preto Carvão:       #151A22
   - Branco:             #FFFFFF
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens & Modern Variables
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;

  /* Cores Principais */
  --c-yellow: #E5C847;
  --c-yellow-hover: #EDD458;
  --c-yellow-soft: rgba(229, 200, 71, 0.14);
  --c-yellow-glow: rgba(229, 200, 71, 0.28);

  --c-green: #006B3F;
  --c-green-dark: #004F2E;
  --c-green-light: #008751;
  --c-green-soft: rgba(0, 107, 63, 0.08);
  --c-green-glow: rgba(0, 107, 63, 0.22);

  --c-black: #151A22;
  --c-white: #FFFFFF;

  /* Tema Claro (Clean Modern Medical-Tech) */
  --bg: #F8FAF9;
  --bg-gradient: radial-gradient(circle at 50% 0%, #FFFFFF 0%, #F5F8F6 100%);
  --surface: #FFFFFF;
  --surface-alt: #F1F5F3;
  --surface-glass: rgba(255, 255, 255, 0.86);
  --card: #FFFFFF;
  --card-hover: #FFFFFF;

  --ink: #151A22;
  --ink-secondary: #323E38;
  --muted: #5D7068;
  --subtle: #8A9D95;

  --border: rgba(21, 26, 34, 0.08);
  --border-strong: rgba(21, 26, 34, 0.14);
  --border-focus: var(--c-green);

  --header-bg: rgba(248, 250, 249, 0.90);
  --header-border: rgba(21, 26, 34, 0.07);

  --shadow-xs: 0 1px 3px rgba(21, 26, 34, 0.04);
  --shadow-sm: 0 4px 14px rgba(21, 26, 34, 0.05);
  --shadow-md: 0 12px 32px -4px rgba(21, 26, 34, 0.08);
  --shadow-lg: 0 24px 50px -12px rgba(21, 26, 34, 0.12);
  --shadow-colored: 0 16px 36px -8px rgba(0, 107, 63, 0.18);

  --glow-hero-1: rgba(0, 107, 63, 0.14);
  --glow-hero-2: rgba(229, 200, 71, 0.16);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Plus Jakarta Sans', system-ui, sans-serif;
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-full: 9999px;

  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   Tema Escuro (Deep Charcoal & Luminous Emerald/Gold)
   -------------------------------------------------------------------------- */
:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #151A22;
  --bg-gradient: radial-gradient(circle at 50% 0%, #1C232E 0%, #151A22 100%);
  --surface: #1B232E;
  --surface-alt: #202A38;
  --surface-glass: rgba(27, 35, 46, 0.88);
  --card: #1D2633;
  --card-hover: #222D3D;

  --ink: #FFFFFF;
  --ink-secondary: #E1E8E5;
  --muted: #8E9E98;
  --subtle: #5C6E67;

  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-focus: var(--c-yellow);

  --header-bg: rgba(21, 26, 34, 0.90);
  --header-border: rgba(255, 255, 255, 0.07);

  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 14px 34px -4px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 28px 60px -12px rgba(0, 0, 0, 0.65);
  --shadow-colored: 0 16px 40px -8px rgba(0, 135, 81, 0.3);

  --glow-hero-1: rgba(0, 135, 81, 0.18);
  --glow-hero-2: rgba(229, 200, 71, 0.14);
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease-smooth), color 0.3s ease;
}

::selection {
  background: var(--c-yellow);
  color: var(--c-black);
}

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

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

h1, h2, h3, h4, p {
  margin-top: 0;
}

h1, h2, h3 {
  letter-spacing: -0.035em;
  font-weight: 700;
  color: var(--ink);
}

[id] {
  scroll-margin-top: 90px;
}

.container {
  width: min(1160px, 100% - 48px);
  margin-inline: auto;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 18px;
  background: var(--c-green);
  color: var(--c-white);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--r-sm);
  transform: translateY(-200%);
  transition: transform 0.25s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 2px solid var(--c-yellow);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Modern Glass Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 68px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.brand:hover {
  transform: translateY(-1px);
}

/* Crisp, anti-aliased logo rendering */
.brand-logo {
  height: 42px;
  width: auto;
  aspect-ratio: 1190 / 515;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: auto;
  transform: translateZ(0);
}

.logo-dark { display: none; }
.logo-light { display: block; }
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark  { display: block; }

/* Navigation links as clean pill tabs */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(21, 26, 34, 0.03);
  padding: 4px 6px;
  border-radius: var(--r-full);
  border: 1px solid var(--border);
}

:root[data-theme="dark"] .nav {
  background: rgba(255, 255, 255, 0.03);
}

.nav a {
  padding: 6px 16px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--muted);
  border-radius: var(--r-full);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav a:hover {
  color: var(--ink);
  background: var(--surface);
}

:root[data-theme="dark"] .nav a:hover {
  color: var(--c-white);
  background: rgba(255, 255, 255, 0.08);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* --------------------------------------------------------------------------
   Tactile Theme Toggle
   -------------------------------------------------------------------------- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease;
  box-shadow: var(--shadow-xs);
}

.theme-toggle:hover {
  border-color: var(--border-strong);
  transform: scale(1.03);
}

.toggle-track {
  position: relative;
  width: 48px;
  height: 26px;
  border-radius: var(--r-full);
  background: var(--surface-alt);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
  transition: background-color 0.3s ease;
}

:root[data-theme="dark"] .toggle-track {
  background: #151A22;
}

.toggle-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.icon-sun {
  color: #B38600;
  transition: transform 0.3s ease, color 0.3s ease;
}

.icon-moon {
  color: #6D8279;
  transition: transform 0.3s ease, color 0.3s ease;
}

:root[data-theme="dark"] .icon-sun {
  color: #495B53;
  transform: scale(0.85);
}

:root[data-theme="dark"] .icon-moon {
  color: var(--c-yellow);
  transform: scale(1.05);
}

.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--c-green);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  transition: transform 0.35s var(--ease-spring), background-color 0.3s ease;
}

:root[data-theme="dark"] .toggle-thumb {
  transform: translateX(22px);
  background: var(--c-yellow);
}

/* --------------------------------------------------------------------------
   Modern Button System
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: var(--r-full);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s var(--ease-spring),
              box-shadow 0.25s var(--ease-spring),
              background-color 0.2s ease,
              border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

/* Verde Britânico Button */
.btn-primary {
  background: var(--c-green);
  color: var(--c-white);
  border-color: var(--c-green);
  box-shadow: 0 4px 16px -2px rgba(0, 107, 63, 0.35), inset 0 1px 1px rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  background: var(--c-green-light);
  border-color: var(--c-green-light);
  box-shadow: 0 8px 24px -2px rgba(0, 107, 63, 0.45);
}

:root[data-theme="dark"] .btn-primary {
  background: var(--c-yellow);
  color: var(--c-black);
  border-color: var(--c-yellow);
  box-shadow: 0 4px 16px -2px rgba(229, 200, 71, 0.35);
}

:root[data-theme="dark"] .btn-primary:hover {
  background: var(--c-yellow-hover);
  border-color: var(--c-yellow-hover);
  box-shadow: 0 8px 24px -2px rgba(229, 200, 71, 0.45);
}

/* Amarelo Motorsport Button */
.btn-accent {
  background: var(--c-yellow);
  color: var(--c-black);
  border-color: var(--c-yellow);
  box-shadow: 0 4px 20px -3px rgba(229, 200, 71, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.5);
}

.btn-accent:hover {
  background: var(--c-yellow-hover);
  border-color: var(--c-yellow-hover);
  box-shadow: 0 8px 28px -3px rgba(229, 200, 71, 0.55);
}

/* Ghost / Glass Button */
.btn-ghost {
  background: var(--surface-glass);
  color: var(--ink);
  border-color: var(--border-strong);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-xs);
}

.btn-ghost:hover {
  background: var(--surface);
  border-color: var(--ink);
  box-shadow: var(--shadow-sm);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 15.5px;
  border-radius: var(--r-full);
}

/* --------------------------------------------------------------------------
   Hero Section — Perfectly Proportioned, 100% Uncut
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 44px 0 54px;
  /* NO overflow: hidden on .hero so nothing is ever clipped! */
}

/* Contained background wrapper for ambient glow orbs */
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

/* Floating ambient glow orbs */
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  pointer-events: none;
  opacity: 0.85;
}

.hero-glow-1 {
  width: 540px;
  height: 540px;
  top: -120px;
  right: -80px;
  background: var(--glow-hero-1);
  animation: floatOrb1 16s ease-in-out infinite alternate;
}

.hero-glow-2 {
  width: 460px;
  height: 460px;
  bottom: 0px;
  left: -100px;
  background: var(--glow-hero-2);
  animation: floatOrb2 14s ease-in-out infinite alternate;
}

@keyframes floatOrb1 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(-30px, 40px) scale(1.08); }
  100% { transform: translate(20px, -20px) scale(0.96); }
}

@keyframes floatOrb2 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(40px, -30px) scale(1.12); }
  100% { transform: translate(-20px, 20px) scale(0.92); }
}

/* Modern radial dot grid mask */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, var(--border-strong) 1.2px, transparent 1.2px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 65% 55% at 50% 35%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 65% 55% at 50% 35%, black 20%, transparent 75%);
  opacity: 0.6;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin-inline: auto;
  padding-bottom: 20px;
}

/* Pill badge with live indicator */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 16px 5px 10px;
  border-radius: var(--r-full);
  background: var(--surface-glass);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--c-green);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: 20px;
  box-shadow: var(--shadow-xs);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.hero-badge:hover {
  transform: translateY(-1px);
  border-color: var(--c-green);
}

:root[data-theme="dark"] .hero-badge {
  color: var(--c-yellow);
}

:root[data-theme="dark"] .hero-badge:hover {
  border-color: var(--c-yellow);
}

.badge-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-green-light);
  box-shadow: 0 0 0 0 rgba(0, 135, 81, 0.5);
  animation: pulseGlow 2.2s infinite;
}

:root[data-theme="dark"] .badge-pulse {
  background: var(--c-yellow);
  box-shadow: 0 0 0 0 rgba(229, 200, 71, 0.5);
}

@keyframes pulseGlow {
  0%   { box-shadow: 0 0 0 0 rgba(0, 135, 81, 0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(0, 135, 81, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 135, 81, 0); }
}

.hero h1 {
  font-size: clamp(36px, 5.2vw, 58px);
  line-height: 1.12;
  margin-bottom: 18px;
  letter-spacing: -0.04em;
  font-weight: 800;
  padding-bottom: 2px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--c-green) 0%, var(--c-green-light) 45%, var(--c-yellow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

:root[data-theme="dark"] .gradient-text {
  background: linear-gradient(135deg, var(--c-white) 0%, var(--c-yellow) 60%, var(--c-yellow-hover) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-sub {
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 30px;
  font-weight: 400;
}

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

/* --------------------------------------------------------------------------
   Stats Banner (Laudos Rápidos, Cone Beam, Dose Radiação, Fluxo Digital)
   100% Uncut, Fully Rendered with Generous Breathing Room
   -------------------------------------------------------------------------- */
.stats-banner-wrap {
  position: relative;
  z-index: 2;
  margin-top: 26px;
}

.stats-banner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 12px;
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
  margin-bottom: 0;
}

.stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 22px 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  text-align: center;
  transition: transform 0.3s var(--ease-spring),
              border-color 0.3s ease,
              box-shadow 0.3s ease,
              background-color 0.3s ease;
}

.stat-box:hover {
  transform: translateY(-3px);
  border-color: var(--c-green);
  box-shadow: var(--shadow-sm);
}

:root[data-theme="dark"] .stat-box:hover {
  border-color: var(--c-yellow);
}

.stat-number {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--c-green);
  margin-bottom: 4px;
  line-height: 1.1;
}

:root[data-theme="dark"] .stat-number {
  color: var(--c-yellow);
}

.stat-text {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Generic Section Layout
   -------------------------------------------------------------------------- */
.section {
  padding: 100px 0;
  position: relative;
}

.section-alt {
  background: var(--surface-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.4s ease, border-color 0.3s ease;
}

.section-head {
  margin-bottom: 52px;
  text-align: center;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  margin-bottom: 16px;
  border-radius: var(--r-full);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  background: var(--c-green-soft);
  color: var(--c-green);
  border: 1px solid rgba(0, 107, 63, 0.15);
}

:root[data-theme="dark"] .chip {
  background: var(--c-yellow-soft);
  color: var(--c-yellow);
  border-color: rgba(229, 200, 71, 0.2);
}

.chip-light {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--c-yellow);
}

.section-head h2 {
  font-size: clamp(30px, 4vw, 46px);
  margin-bottom: 0;
  letter-spacing: -0.03em;
}

/* --------------------------------------------------------------------------
   Exam Carousel — Futuristic Modern Changing Card
   -------------------------------------------------------------------------- */
.exam-carousel {
  max-width: 660px;
  margin-inline: auto;
  position: relative;
}

/* Ambient backlight behind the changing card */
.exam-carousel::before {
  content: '';
  position: absolute;
  inset: -12px;
  background: radial-gradient(circle at 50% 50%, var(--glow-hero-1) 0%, transparent 70%);
  filter: blur(40px);
  z-index: 0;
  pointer-events: none;
  opacity: 0.7;
}

.exam-card {
  position: relative;
  z-index: 1;
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background: var(--card);
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--border);
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.exam-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg), var(--shadow-colored);
}

.exam-card-inner {
  padding: 48px 44px 36px;
  transition: opacity 0.25s ease, transform 0.25s var(--ease-spring);
}

.exam-card.switching .exam-card-inner {
  opacity: 0;
  transform: translateY(10px) scale(0.99);
}

.exam-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.exam-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--r-full);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  background: var(--c-green-soft);
  color: var(--c-green);
  border: 1px solid rgba(0, 107, 63, 0.18);
}

:root[data-theme="dark"] .exam-tag {
  background: var(--c-yellow-soft);
  color: var(--c-yellow);
  border-color: rgba(229, 200, 71, 0.25);
}

.exam-counter {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--subtle);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.5px;
}

.exam-card h3 {
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 800;
  margin-bottom: 14px;
  line-height: 1.2;
}

.exam-card p {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
  max-width: 480px;
}

.exam-footer {
  padding: 0 44px 32px;
}

/* Neon progress line indicator */
.exam-progress {
  height: 3px;
  background: var(--surface-alt);
  border-radius: var(--r-full);
  margin-bottom: 24px;
  overflow: hidden;
}

.exam-progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--c-green), var(--c-yellow));
  border-radius: var(--r-full);
  box-shadow: 0 0 10px rgba(0, 107, 63, 0.4);
}

:root[data-theme="dark"] .exam-progress-bar {
  background: linear-gradient(90deg, var(--c-green-light), var(--c-yellow));
  box-shadow: 0 0 10px rgba(229, 200, 71, 0.4);
}

.exam-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.exam-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: var(--r-full);
  border: none;
  padding: 0;
  cursor: pointer;
  background: var(--border-strong);
  transition: background-color 0.25s ease, width 0.3s var(--ease-spring), border-radius 0.3s ease;
}

.dot:hover {
  background: var(--subtle);
}

.dot.is-active {
  width: 24px;
  background: var(--c-green);
}

:root[data-theme="dark"] .dot.is-active {
  background: var(--c-yellow);
}

.exam-arrows {
  display: flex;
  gap: 8px;
}

.arrow-btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  transition: transform 0.2s var(--ease-spring),
              border-color 0.2s ease,
              color 0.2s ease,
              box-shadow 0.2s ease;
}

.arrow-btn:hover {
  border-color: var(--c-green);
  color: var(--c-green);
  transform: scale(1.08);
  box-shadow: var(--shadow-sm);
}

:root[data-theme="dark"] .arrow-btn:hover {
  border-color: var(--c-yellow);
  color: var(--c-yellow);
}

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

.exam-note {
  margin-top: 24px;
  text-align: center;
  font-size: 12.5px;
  color: var(--subtle);
}

/* --------------------------------------------------------------------------
   Steps Section (Frosted Modern Cards)
   -------------------------------------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step-card {
  position: relative;
  padding: 40px 32px;
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background: var(--card);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
  transition: transform 0.3s var(--ease-spring),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}

.step-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-green), var(--c-yellow));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.step-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

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

.step-num {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(135deg, var(--c-green), var(--c-green-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}

:root[data-theme="dark"] .step-num {
  background: linear-gradient(135deg, var(--c-green-light), var(--c-yellow));
  -webkit-background-clip: text;
  background-clip: text;
}

.step-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

/* --------------------------------------------------------------------------
   Modern CTA & Contact Card
   -------------------------------------------------------------------------- */
.cta-card {
  position: relative;
  padding: 80px 60px;
  border-radius: var(--r-xl);
  background: linear-gradient(145deg, var(--c-green-dark) 0%, var(--c-green) 100%);
  color: var(--c-white);
  overflow: hidden;
  text-align: center;
  box-shadow: var(--shadow-lg), 0 20px 48px -8px rgba(0, 107, 63, 0.35);
}

:root[data-theme="dark"] .cta-card {
  background: linear-gradient(145deg, #151A22 0%, #1D2633 100%);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-lg);
}

.cta-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  top: -150px;
  right: -100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(229, 200, 71, 0.28) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
}

.cta-card h2 {
  font-size: clamp(30px, 4vw, 44px);
  color: var(--c-white);
  margin-bottom: 16px;
  font-weight: 800;
}

:root[data-theme="dark"] .cta-card h2 {
  color: var(--ink);
}

.cta-card > .cta-content > p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.65;
  margin-bottom: 36px;
}

:root[data-theme="dark"] .cta-card > .cta-content > p {
  color: var(--muted);
}

.cta-info {
  display: flex;
  justify-content: center;
  gap: 36px;
  margin-bottom: 38px;
  flex-wrap: wrap;
}

.cta-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 14px;
  text-align: center;
}

.cta-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--c-yellow);
}

:root[data-theme="dark"] .cta-info-item span:last-child {
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   Floating WhatsApp Button
   -------------------------------------------------------------------------- */
.wa-float {
  position: fixed;
  z-index: 999;
  bottom: 28px;
  right: 28px;
}

.wa-float-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--c-green);
  color: var(--c-white);
  box-shadow: 0 6px 24px rgba(0, 107, 63, 0.4);
  transition: transform 0.25s var(--ease-spring), box-shadow 0.25s ease;
}

.wa-float-btn:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 10px 32px rgba(0, 107, 63, 0.5);
}

:root[data-theme="dark"] .wa-float-btn {
  background: var(--c-yellow);
  color: var(--c-black);
  box-shadow: 0 6px 24px rgba(229, 200, 71, 0.35);
}

:root[data-theme="dark"] .wa-float-btn:hover {
  box-shadow: 0 10px 32px rgba(229, 200, 71, 0.5);
}

.wa-float-pulse {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--c-green);
  animation: waRingPulse 2.6s infinite;
  pointer-events: none;
}

:root[data-theme="dark"] .wa-float-pulse {
  border-color: var(--c-yellow);
}

@keyframes waRingPulse {
  0%   { transform: scale(0.95); opacity: 0.8; }
  60%  { transform: scale(1.24); opacity: 0; }
  100% { transform: scale(1.28); opacity: 0; }
}

/* --------------------------------------------------------------------------
   Modern Footer
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 36px 0;
  background: var(--surface);
  transition: border-color 0.3s ease, background-color 0.4s ease;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--muted);
}

.footer-links a {
  transition: color 0.2s ease;
}

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

.footer-copy {
  font-size: 12.5px;
  color: var(--subtle);
  margin: 0;
}

/* --------------------------------------------------------------------------
   Intersection Reveal Animation
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-spring), transform 0.8s var(--ease-spring);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   Mobile Navigation & Responsive Styles
   -------------------------------------------------------------------------- */
.mobile-menu {
  display: none;
}

@media (max-width: 960px) {
  .stats-banner {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    padding: 84px 0;
  }
}

@media (max-width: 680px) {
  .nav, .header-cta {
    display: none;
  }

  .brand-logo {
    height: 36px;
  }

  .mobile-menu {
    display: block;
    position: relative;
  }

  .mobile-menu summary {
    width: 38px;
    height: 38px;
    display: grid;
    align-content: center;
    justify-items: center;
    gap: 5px;
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    background: var(--surface);
    cursor: pointer;
    list-style: none;
    box-shadow: var(--shadow-xs);
  }

  .mobile-menu summary::-webkit-details-marker {
    display: none;
  }

  .mobile-menu summary span {
    width: 17px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.25s var(--ease-spring);
  }

  .mobile-menu[open] summary span:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .mobile-menu[open] summary span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .mobile-nav {
    position: absolute;
    top: 48px;
    right: 0;
    width: min(280px, 92vw);
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px;
    background: var(--card);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-lg);
    z-index: 100;
  }

  .mobile-nav a {
    padding: 10px 14px;
    font-size: 14.5px;
    font-weight: 500;
    border-radius: var(--r-sm);
    transition: background-color 0.2s ease;
  }

  .mobile-nav a:hover {
    background: var(--surface-alt);
  }

  .hero {
    padding: 36px 0 44px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-sub {
    font-size: 15px;
  }

  .stats-banner {
    grid-template-columns: repeat(2, 1fr);
    border-radius: var(--r-lg);
    gap: 8px;
    padding: 8px;
  }

  .stat-box {
    padding: 18px 10px;
  }

  .stat-number {
    font-size: 26px;
  }

  .stat-text {
    font-size: 11px;
    letter-spacing: 0.4px;
    white-space: normal;
  }

  .section {
    padding: 68px 0;
  }

  .exam-card-inner {
    padding: 32px 24px 24px;
  }

  .exam-card h3 {
    font-size: 24px;
  }

  .exam-footer {
    padding: 0 24px 24px;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .step-card {
    padding: 30px 24px;
  }

  .cta-card {
    padding: 52px 24px;
  }

  .cta-info {
    gap: 20px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .wa-float {
    bottom: 20px;
    right: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero-glow,
  .badge-pulse,
  .wa-float-pulse {
    animation: none !important;
  }
}