/* ============================================
   PairedM Website — Styles
   Design system matching the PairedM mobile app
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  /* Primary */
  --red: #D32F2F;
  --red-light: #EF5350;
  --red-dark: #B71C1C;

  /* Secondary */
  --orange: #E8720C;
  --orange-light: #F5A623;
  --orange-dark: #D35400;

  /* Accent */
  --gold: #D4A853;
  --cyan: #06B6D4;

  /* Neutrals */
  --bg: #FFFFFF;
  --card: #F5F5F5;
  --border: #E0E0E0;
  --divider: #EEEEEE;

  /* Text */
  --text-primary: #1A1A1A;
  --text-secondary: #555555;
  --text-tertiary: #888888;

  /* Status */
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #D32F2F, #E8720C);
  --gradient-secondary: linear-gradient(135deg, #E8720C, #F5A623);
  --gradient-hero: linear-gradient(180deg, rgba(255,255,255,0) 0%, #FFFFFF 100%);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-base: 16px;
  --space-lg: 20px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 40px;
  --space-4xl: 48px;
  --space-5xl: 64px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.16);

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.5;
  overflow-x: hidden;
}

a {
  color: var(--orange);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--red);
}

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

ul, ol {
  list-style: none;
}

/* ---------- Typography ---------- */
h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.3px;
}

h3 {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.35;
}

h4 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
}

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

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

.section-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: var(--space-md);
}

.section-title {
  margin-bottom: var(--space-lg);
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-3xl);
}

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

section {
  padding: var(--space-5xl) 0;
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  text-decoration: none;
  line-height: 1.3;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-primary {
  background: var(--gradient-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(211, 47, 47, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.btn-whatsapp {
  background: #25D366;
  color: #FFFFFF;
}

.btn-whatsapp:hover {
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 13px;
}

.btn-lg {
  padding: 18px 40px;
  font-size: 17px;
}

.btn-arrow::after {
  content: '→';
  font-size: 18px;
  transition: transform 0.2s;
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ---------- Header / Nav ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background 0.3s;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo img {
  height: 44px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}

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

.nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
}

.nav-cta {
  margin-left: var(--space-md);
}

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

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  z-index: 999;
  padding: var(--space-3xl) var(--space-lg);
  flex-direction: column;
  gap: var(--space-xl);
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav a {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--divider);
}

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

/* ---------- 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;
  z-index: 0;
}

.hero-slider {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0.95) 0%,
    rgba(255, 255, 255, 0.85) 40%,
    rgba(255, 255, 255, 0.5) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  padding: var(--space-5xl) 0;
}

.hero-content h1 {
  font-size: 56px;
  margin-bottom: var(--space-xl);
}

.hero-content p {
  font-size: 18px;
  margin-bottom: var(--space-3xl);
  color: var(--text-secondary);
}

.hero-buttons {
  display: flex;
  gap: var(--space-base);
  flex-wrap: wrap;
}

/* Launch announcement banner */
.launch-banner {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 5px var(--space-md) 5px 5px;
  background: rgba(211, 47, 47, 0.07);
  border: 1px solid rgba(211, 47, 47, 0.22);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 16px rgba(211, 47, 47, 0.12);
}
.launch-banner:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(211, 47, 47, 0.22);
}
.launch-pill {
  background: var(--gradient-primary);
  color: #fff;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
  white-space: nowrap;
}
.launch-text {
  color: var(--text-primary);
  font-size: 13.5px;
  font-weight: 500;
}
.launch-arrow {
  color: var(--red);
  font-weight: 700;
  font-size: 15px;
}
@media (max-width: 600px) {
  .launch-text { font-size: 12px; }
  .launch-pill { font-size: 11px; padding: 4px 10px; }
}

.hero-tags {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-3xl);
  flex-wrap: wrap;
}

.hero-tag {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-secondary);
}

.hero-tag .tag-icon {
  color: var(--red);
  font-weight: 600;
}

/* Hero Background Video */
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

/* When video loads successfully, hide the slider underneath */
.hero-bg .hero-video ~ .hero-slider {
  opacity: 0;
  transition: opacity 0.5s;
}

/* "How It Works" Video Placeholder */
.how-it-works-video {
  aspect-ratio: 16 / 9;
  max-width: 720px;
  margin: 0 auto var(--space-3xl);
  background: var(--card);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.3s;
}

.how-it-works-video:hover {
  border-color: var(--orange);
}

/* Decorative circles */
.hero-decor-1 {
  position: absolute;
  top: 15%;
  right: 5%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: var(--red);
  opacity: 0.04;
  z-index: 0;
}

.hero-decor-2 {
  position: absolute;
  bottom: 10%;
  right: 20%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--orange);
  opacity: 0.04;
  z-index: 0;
}

/* ---------- Banner Carousel ---------- */
.banner-section {
  padding: var(--space-4xl) 0;
  background: var(--card);
}

.banner-carousel {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: var(--space-sm) 0;
}

.banner-carousel::-webkit-scrollbar {
  display: none;
}

.banner-item {
  flex: 0 0 320px;
  scroll-snap-align: start;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s;
}

.banner-item:hover {
  transform: scale(1.02);
}

.banner-item img {
  width: 100%;
  height: auto;
}

/* ---------- How It Works ---------- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}

.step-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: transform 0.3s, border-color 0.3s;
  position: relative;
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: var(--orange);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #FFF;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
}

.step-icon {
  font-size: 40px;
  margin-bottom: var(--space-md);
}

.step-card h3 {
  margin-bottom: var(--space-md);
}

.step-card p {
  font-size: 14px;
}

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

.service-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--orange);
}

.service-card-image {
  overflow: hidden;
  position: relative;
}

.service-card-image img {
  width: 100%;
  height: auto;
  transition: transform 0.4s;
}

.service-card:hover .service-card-image img {
  transform: scale(1.05);
}

.service-badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.badge-active {
  background: var(--success);
  color: #FFF;
}

.badge-soon {
  background: var(--warning);
  color: #1A1A1A;
}

.service-card-body {
  padding: var(--space-xl);
}

.service-card-body h3 {
  margin-bottom: var(--space-sm);
}

/* ---------- Features / Why Choose Us ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--red);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  font-size: 24px;
}

.feature-card h4 {
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: 14px;
}

/* ---------- Testimonials ---------- */
.testimonials-section {
  background: var(--card);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
}

.testimonial-quote {
  font-size: 48px;
  line-height: 1;
  color: var(--red);
  opacity: 0.3;
  position: absolute;
  top: var(--space-lg);
  left: var(--space-xl);
}

.testimonial-text {
  font-size: 15px;
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  padding-top: var(--space-xl);
  line-height: 1.7;
}

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

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF;
  font-weight: 700;
  font-size: 16px;
}

.testimonial-name {
  font-weight: 600;
  font-size: 15px;
}

.testimonial-location {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ---------- CTA Banner ---------- */
.cta-section {
  position: relative;
  padding: var(--space-5xl) 0;
  text-align: center;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0.1;
}

.cta-section h2 {
  margin-bottom: var(--space-lg);
}

.cta-section p {
  margin-bottom: var(--space-2xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand img {
  height: 44px;
  margin-bottom: var(--space-lg);
}

.footer-brand p {
  font-size: 14px;
  margin-bottom: var(--space-lg);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 18px;
  transition: border-color 0.2s, color 0.2s;
}

.footer-social a:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.footer-column h4 {
  font-size: 15px;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.footer-column a {
  display: block;
  color: var(--text-tertiary);
  font-size: 14px;
  padding: var(--space-xs) 0;
  transition: color 0.2s;
}

.footer-column a:hover {
  color: var(--orange);
}

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

.footer-bottom p {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ---------- Page Hero (inner pages) ---------- */
.page-hero {
  padding: calc(var(--header-height) + var(--space-5xl)) 0 var(--space-4xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: var(--red);
  opacity: 0.03;
}

.page-hero h1 {
  margin-bottom: var(--space-lg);
  position: relative;
}

.page-hero p {
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

/* ---------- Process Page ---------- */
.process-section {
  padding: var(--space-4xl) 0;
}

.process-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-bottom: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.process-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
}

.process-card h3 {
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.process-level {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-md);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: #FFF;
  white-space: nowrap;
}

.process-card p {
  font-size: 15px;
  line-height: 1.8;
}

.process-card ul {
  margin-top: var(--space-md);
  padding-left: var(--space-lg);
}

.process-card ul li {
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  position: relative;
  padding-left: var(--space-xl);
  font-size: 15px;
}

.process-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: 700;
}

.process-banner {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-3xl) 0;
}

.process-banner img {
  width: 100%;
  height: auto;
}

/* ---------- Scholars Page ---------- */
.scholars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}

.scholar-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}

.scholar-card:hover {
  transform: translateY(-4px);
  border-color: var(--red);
}

.scholar-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  font-size: 36px;
}

.scholar-card h3 {
  margin-bottom: var(--space-xs);
}

.scholar-role {
  font-size: 14px;
  color: var(--orange);
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.scholar-card p {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.scholar-quote {
  font-style: italic;
  font-size: 14px;
  color: var(--text-tertiary);
  padding: var(--space-base);
  border-left: 3px solid var(--red);
  text-align: left;
  background: rgba(211, 47, 47, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ---------- Contact Page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  margin-top: var(--space-3xl);
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-info-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  transition: border-color 0.3s;
}

.contact-info-card:hover {
  border-color: var(--orange);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-info-card h4 {
  font-size: 15px;
  margin-bottom: var(--space-xs);
}

.contact-info-card p {
  font-size: 14px;
}

.contact-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

.contact-form h3 {
  margin-bottom: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--orange);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* ---------- Register Page ---------- */
.register-hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
}

.register-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.register-features {
  margin-top: var(--space-2xl);
}

.register-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.register-feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}

.register-feature h4 {
  font-size: 16px;
  margin-bottom: var(--space-xs);
}

.register-feature p {
  font-size: 14px;
}

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

.register-visual img {
  border-radius: var(--radius-lg);
  width: 100%;
  height: auto;
}

.register-visual img:first-child {
  grid-column: 1 / -1;
}

/* ---------- Scroll Animations ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.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; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  h1 { font-size: 40px; }
  h2 { font-size: 30px; }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }

  .scholars-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
  h3 { font-size: 20px; }

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

  .nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-content h1 {
    font-size: 36px;
  }

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

  .hero-overlay {
    background: linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0.9) 0%,
      rgba(255, 255, 255, 0.75) 100%
    );
  }

  .steps-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .register-content {
    grid-template-columns: 1fr;
  }

  .register-visual {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .banner-item {
    flex: 0 0 260px;
  }

  .banner-item img {
    height: auto;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 28px; }

  .hero-content h1 {
    font-size: 30px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-tags {
    flex-direction: column;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: 15px;
  }
}

/* ============================================
   Dark Theme
   ============================================ */
[data-theme="dark"] {
  --bg: #1A1A1A;
  --card: #242424;
  --border: #333333;
  --divider: #2A2A2A;

  --text-primary: #FFFFFF;
  --text-secondary: #B3B3B3;
  --text-tertiary: #808080;

  --gradient-hero: linear-gradient(180deg, rgba(26,26,26,0) 0%, #1A1A1A 100%);

  --shadow-sm: 0 1px 3px rgba(211, 47, 47, 0.10);
  --shadow-md: 0 2px 8px rgba(211, 47, 47, 0.20);
  --shadow-lg: 0 4px 16px rgba(211, 47, 47, 0.30);
}

[data-theme="dark"] a {
  color: var(--orange-light);
}

[data-theme="dark"] a:hover {
  color: var(--orange);
}

[data-theme="dark"] .header {
  background: rgba(26, 26, 26, 0.95);
}

[data-theme="dark"] .mobile-nav {
  background: rgba(26, 26, 26, 0.98);
}

[data-theme="dark"] .hero-overlay {
  background: linear-gradient(
    to right,
    rgba(26, 26, 26, 0.95) 0%,
    rgba(26, 26, 26, 0.8) 40%,
    rgba(26, 26, 26, 0.4) 100%
  );
}

@media (max-width: 768px) {
  [data-theme="dark"] .hero-overlay {
    background: linear-gradient(
      to bottom,
      rgba(26, 26, 26, 0.9) 0%,
      rgba(26, 26, 26, 0.7) 100%
    );
  }
}

/* ---------- Theme Toggle Button ---------- */
.theme-toggle {
  background: none;
  border: 2px solid var(--border);
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-primary);
  transition: border-color 0.2s, color 0.2s;
}

.theme-toggle:hover {
  border-color: var(--orange);
  color: var(--orange);
}

/* Light mode: show moon, hide sun */
.theme-icon-light { display: none; }
.theme-icon-dark  { display: inline; }

/* Dark mode: show sun, hide moon */
[data-theme="dark"] .theme-icon-light { display: inline; }
[data-theme="dark"] .theme-icon-dark  { display: none; }

/* Coming Soon Banner */
.coming-soon-banner {
  background: linear-gradient(135deg, var(--red), var(--orange));
  color: #fff;
  text-align: center;
  padding: var(--space-sm) 0;
  font-size: 14px;
  z-index: 999;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
}
.coming-soon-banner p {
  margin: 0;
  letter-spacing: 0.3px;
}

/* Coordinator Badge */
.coordinator-badge {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 998;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 13px;
  color: var(--text-secondary);
  box-shadow: var(--shadow-md);
  max-width: 300px;
}
.coordinator-badge-icon {
  font-size: 20px;
}

@media (max-width: 768px) {
  .coordinator-badge {
    bottom: 10px;
    right: 10px;
    left: 10px;
    max-width: none;
    justify-content: center;
    font-size: 12px;
  }
}

/* Scholar Process Flowchart */
.scholar-process-section {
  padding: var(--space-5xl) 0;
}
.scholar-flowchart {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-3xl);
}
.flowchart-step {
  flex: 1;
  max-width: 280px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s;
}
.flowchart-step:hover {
  transform: translateY(-4px);
  border-color: var(--red);
}
.flowchart-stage {
  padding: var(--space-xl) var(--space-lg) var(--space-md);
}
.flowchart-icon {
  font-size: 36px;
  margin-bottom: var(--space-sm);
}
.flowchart-stage h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}
.flowchart-stage p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.flowchart-scholar {
  background: linear-gradient(135deg, rgba(211,47,47,0.1), rgba(232,114,12,0.1));
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border);
}
.flowchart-scholar span {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-bottom: 2px;
}
.flowchart-scholar strong {
  font-size: 14px;
  color: var(--orange);
}
.flowchart-arrow {
  display: flex;
  align-items: center;
  font-size: 24px;
  color: var(--text-tertiary);
  font-weight: 300;
}

@media (max-width: 768px) {
  .scholar-flowchart {
    flex-direction: column;
    align-items: center;
  }
  .flowchart-step {
    max-width: 100%;
    width: 100%;
  }
  .flowchart-arrow {
    transform: rotate(90deg);
    font-size: 20px;
  }
}

/* Scholar Video Placeholder */
.scholar-video-placeholder {
  margin-top: var(--space-lg);
  aspect-ratio: 16 / 9;
  background: var(--bg);
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}
.video-placeholder-content {
  text-align: center;
  color: var(--text-tertiary);
}
.video-play-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--red), var(--orange));
  color: #fff;
  font-size: 18px;
  margin-bottom: var(--space-sm);
}
.video-placeholder-content p {
  font-size: 13px;
  margin: 0;
}

/* Scholar Video Coming Soon (YouTube-style) */
.scholar-video-coming-soon {
  margin-top: var(--space-lg);
  aspect-ratio: 16 / 9;
  background: #0f0f0f;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.video-coming-soon-content {
  text-align: center;
}
.video-coming-soon-content .yt-play-icon {
  opacity: 0.7;
  margin-bottom: var(--space-md);
}
.video-coming-soon-content p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  margin: 0;
  letter-spacing: 0.5px;
}

/* Scholar Video Embeds (YouTube) */
.scholar-video-embed {
  margin-top: var(--space-lg);
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.scholar-video-embed iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ============================================
   PREMIUM UX POLISH — v2
   ============================================ */

/* Accessibility: skip-to-content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: var(--space-lg);
  background: var(--red);
  color: #fff;
  padding: var(--space-sm) var(--space-base);
  border-radius: var(--radius-md);
  z-index: 10000;
  font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus {
  top: var(--space-sm);
  color: #fff;
}

/* Scroll progress bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: var(--gradient-primary);
  z-index: 9999;
  transition: width 0.1s linear;
  box-shadow: 0 0 12px rgba(211, 47, 47, 0.4);
}

/* Header scrolled state */
.header {
  transition: background 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.header.scrolled {
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--border);
}
[data-theme="dark"] .header.scrolled {
  background: color-mix(in srgb, var(--bg) 70%, transparent);
}

/* Footer text (non-link address) */
.footer-text {
  color: var(--text-secondary);
  font-size: 14px;
  display: block;
  line-height: 1.8;
}

/* Animated Counter Typography */
.counter-value {
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

/* Gradient Mesh Background (subtle blobs) */
.mesh-bg {
  position: relative;
  isolation: isolate;
}
.mesh-bg::before,
.mesh-bg::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.08;
  pointer-events: none;
  z-index: -1;
}
.mesh-bg::before {
  width: 500px;
  height: 500px;
  background: var(--red);
  top: -100px;
  left: -150px;
}
.mesh-bg::after {
  width: 400px;
  height: 400px;
  background: var(--orange);
  bottom: -100px;
  right: -100px;
}
[data-theme="dark"] .mesh-bg::before,
[data-theme="dark"] .mesh-bg::after {
  opacity: 0.18;
}

/* Glassmorphism cards (applied via data-glass) */
[data-glass] {
  background: color-mix(in srgb, var(--card) 60%, transparent);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s,
              border-color 0.3s;
}
[data-glass]:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px -12px color-mix(in srgb, var(--red) 28%, transparent);
  border-color: color-mix(in srgb, var(--orange) 50%, var(--border));
}

/* 3D tilt transition */
[data-tilt] {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

/* CTA button pulse + arrow slide */
.btn-primary,
.btn.btn-primary {
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.3), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
}
.btn-primary:hover::before {
  opacity: 1;
  animation: ctaPulse 1.4s ease-out infinite;
}
@keyframes ctaPulse {
  0% { transform: scale(0.8); opacity: 0.6; }
  100% { transform: scale(1.5); opacity: 0; }
}
.btn-arrow::after {
  content: '→';
  display: inline-block;
  margin-left: 6px;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn-arrow:hover::after {
  transform: translateX(6px);
}

/* Typography bump — bigger hero H1, tighter tracking on labels */
@media (min-width: 768px) {
  .page-hero h1,
  .register-hero h1,
  main h1 {
    font-size: 64px;
    letter-spacing: -1px;
  }
}
.section-label {
  letter-spacing: 2.5px;
}

/* Form validation visuals */
.form-group {
  position: relative;
}
.form-group input,
.form-group textarea {
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}
.form-group input.valid,
.form-group textarea.valid {
  border-color: var(--success);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--success) 15%, transparent);
  padding-right: 40px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2310B981' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 18px;
}
.form-group input.invalid,
.form-group textarea.invalid {
  border-color: var(--error);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--error) 12%, transparent);
}
.form-error {
  display: block;
  color: var(--error);
  font-size: 13px;
  margin-top: 6px;
  min-height: 18px;
  font-weight: 500;
}

/* Trust Badges */
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-base);
  justify-content: center;
  align-items: center;
  margin-top: var(--space-2xl);
}
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--card);
  border: 1px solid var(--border);
  padding: var(--space-sm) var(--space-base);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.trust-badge:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--orange);
}
.trust-badge-icon {
  font-size: 18px;
}

/* Testimonial carousel indicator */
.testimonial-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--space-lg);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.testimonial-indicator-current {
  color: var(--orange);
  font-size: 16px;
}

/* Interactive Timeline */
.interactive-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-base);
  max-width: 780px;
  margin: 0 auto;
}
.timeline-step {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-xl);
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.timeline-step:hover {
  border-color: var(--orange);
}
.timeline-step.active {
  background: color-mix(in srgb, var(--orange) 8%, var(--card));
  border-color: var(--orange);
  box-shadow: var(--shadow-md);
}
.timeline-step-header {
  display: flex;
  align-items: center;
  gap: var(--space-base);
}
.timeline-step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.timeline-step-title {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}
.timeline-step-toggle {
  transition: transform 0.3s;
  color: var(--text-tertiary);
  font-size: 22px;
}
.timeline-step.active .timeline-step-toggle {
  transform: rotate(45deg);
  color: var(--orange);
}
.timeline-step-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.timeline-step.active .timeline-step-body {
  max-height: 600px;
  margin-top: var(--space-base);
}
.timeline-step-body p,
.timeline-step-body li {
  color: var(--text-secondary);
  line-height: 1.7;
}
.timeline-step-body ul {
  padding-left: var(--space-lg);
  list-style: disc;
  margin-top: var(--space-sm);
}

/* Legal pages layout */
.legal-content {
  max-width: 780px;
}
.legal-content h2 {
  font-size: 22px;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}
.legal-content h2:first-child {
  margin-top: 0;
}
.legal-content p,
.legal-content li {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-base);
}
.legal-content ul {
  list-style: disc;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-base);
}

/* Dark mode polish: saturate orange + button glow */
[data-theme="dark"] {
  --orange: #FF8A1F;
  --orange-light: #FFB54E;
}
[data-theme="dark"] .btn-primary {
  box-shadow: 0 8px 24px -6px rgba(232, 114, 12, 0.5),
              0 0 0 1px rgba(255, 255, 255, 0.05);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}