/* ===================================================================
   SR Library Management System - Main Stylesheet
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ─── CSS Variables ─────────────────────────────────────────────── */
:root {
  --primary: #1a237e;
  --primary-light: #3949ab;
  --primary-dark: #0d1b6e;
  --accent: #ffd600;
  --accent-hover: #f9a825;
  --success: #2e7d32;
  --success-light: #e8f5e9;
  --danger: #c62828;
  --danger-light: #ffebee;
  --warning: #f57f17;
  --warning-light: #fff8e1;
  --info: #0277bd;
  --info-light: #e1f5fe;

  --bg: #f4f6fb;
  --bg-white: #ffffff;
  --surface: #ffffff;
  --surface-2: #f8f9fc;
  --border: #e2e8f0;
  --border-dark: #cbd5e1;

  --text-primary: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --text-light: #a0aec0;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition: all 0.2s ease;
  --transition-slow: all 0.35s ease;

  --font-sans: 'Inter', system-ui, sans-serif;
  --font-display: 'Outfit', 'Inter', sans-serif;

  --nav-height: 70px;
  --sidebar-width: 260px;
}

/* ─── 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: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* ─── Typography ────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.25;
  color: var(--text-primary);
  font-weight: 700;
}

/* ─── Buttons ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26, 35, 126, 0.3);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26, 35, 126, 0.4);
}

.btn-accent {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 4px 14px rgba(255, 214, 0, 0.4);
}

.btn-accent:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--success);
  color: #fff;
}

.btn-success:hover:not(:disabled) {
  background: #1b5e20;
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover:not(:disabled) {
  background: #b71c1c;
  transform: translateY(-1px);
}

.btn-warning {
  background: var(--warning);
  color: #fff;
}

.btn-info {
  background: var(--info);
  color: #fff;
}

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

.btn-outline:hover:not(:disabled) {
  background: var(--primary);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--surface-2);
  border-color: var(--border-dark);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

/* ─── Cards ─────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-body {
  padding: 24px;
}

/* ─── Form Styles ───────────────────────────────────────────────── */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-label .required {
  color: var(--danger);
  margin-left: 3px;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--text-primary);
  background: #fff;
  transition: var(--transition);
  outline: none;
  appearance: none;
}

.form-control:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(57, 73, 171, 0.12);
}

.form-control::placeholder {
  color: var(--text-light);
}

.form-control.is-invalid {
  border-color: var(--danger);
}

.form-text {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-row-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ─── Alerts ─────────────────────────────────────────────────────── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
  border: 1px solid transparent;
}

.alert-danger {
  background: var(--danger-light);
  color: var(--danger);
  border-color: #ffcdd2;
}

.alert-success {
  background: var(--success-light);
  color: var(--success);
  border-color: #c8e6c9;
}

.alert-warning {
  background: var(--warning-light);
  color: var(--warning);
  border-color: #ffe082;
}

.alert-info {
  background: var(--info-light);
  color: var(--info);
  border-color: #b3e5fc;
}

/* ─── Badges ─────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
}

.badge-success {
  background: var(--success-light);
  color: var(--success);
}

.badge-danger {
  background: var(--danger-light);
  color: var(--danger);
}

.badge-warning {
  background: var(--warning-light);
  color: var(--warning);
}

.badge-info {
  background: var(--info-light);
  color: var(--info);
}

.badge-gray {
  background: #f1f5f9;
  color: var(--text-secondary);
}

/* ─── Table Styles ───────────────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 900px;
}

.table th {
  background: var(--surface-2);
  padding: 13px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: middle;
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table tbody tr:hover {
  background: #f8faff;
}

/* ─── Public Navbar ──────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.4);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(26, 35, 126, 0.97);
  box-shadow: 0 4px 24px rgba(26, 35, 126, 0.3);
}

.navbar.scrolled .nav-logo,
.navbar.scrolled .nav-link {
  color: #fff;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  transition: var(--transition);
}

.nav-logo span {
  color: var(--accent-hover);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(26, 35, 126, 0.06);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border: none;
  background: transparent;
}

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

/* ─── Hero Section ───────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #0d1b6e 0%, #1a237e 40%, #283593 70%, #1565c0 100%);
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 40px) 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(255, 214, 0, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(100, 150, 255, 0.08) 0%, transparent 40%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
  opacity: 0.12;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-20px) rotate(120deg); }
  66% { transform: translateY(10px) rotate(240deg); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 214, 0, 0.15);
  border: 1px solid rgba(255, 214, 0, 0.3);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-title .highlight {
  color: var(--accent);
  position: relative;
}

.hero-subtitle {
  font-size: 17px;
  color: rgba(255,255,255,0.75);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.hero-stat {
  text-align: center;
  padding: 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
}

.hero-stat-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
}

.hero-stat-label {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* ─── Hero Visual Card ───────────────────────────────────────────── */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-xl);
  padding: 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.hero-card-title {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-card-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.hero-card-item:last-child { border: none; }

.hero-card-icon {
  width: 36px;
  height: 36px;
  background: rgba(255, 214, 0, 0.15);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.hero-card-text {
  color: rgba(255,255,255,0.85);
  font-size: 14px;
}

/* ─── Section Styles ─────────────────────────────────────────────── */
.section {
  padding: 80px 24px;
}

.section-alt {
  background: var(--surface-2);
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  background: rgba(26, 35, 126, 0.08);
  color: var(--primary);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ─── Features Grid ──────────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0);
  transition: var(--transition-slow);
  transform-origin: left;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(26, 35, 126, 0.2);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 54px;
  height: 54px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 18px;
  box-shadow: 0 6px 20px rgba(26, 35, 126, 0.25);
}

.feature-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ─── Process Steps ──────────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  z-index: 0;
}

.step-item {
  text-align: center;
  padding: 24px 16px;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 16px;
  box-shadow: 0 6px 20px rgba(26, 35, 126, 0.3);
  border: 3px solid var(--bg-white);
}

.step-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-desc {
  font-size: 13px;
  color: var(--text-muted);
}

/* ─── Pricing Card ───────────────────────────────────────────────── */
.pricing-card {
  max-width: 500px;
  margin: 0 auto;
  background: var(--surface);
  border: 2px solid var(--primary);
  border-radius: var(--radius-xl);
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
}

.pricing-amount {
  font-size: 72px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin: 20px 0;
}

.pricing-amount sup {
  font-size: 30px;
  vertical-align: super;
}

.pricing-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.pricing-features {
  text-align: left;
  margin-bottom: 32px;
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  font-size: 15px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.pricing-feature:last-child { border: none; }

.pricing-check {
  color: var(--success);
  font-weight: 700;
  font-size: 16px;
}

/* ─── Contact Section ────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-icon {
  width: 46px;
  height: 46px;
  background: rgba(26, 35, 126, 0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-details p {
  color: var(--text-muted);
  font-size: 14px;
}

/* ─── Footer ─────────────────────────────────────────────────────── */
.footer {
  background: linear-gradient(135deg, #0d1b6e 0%, #1a237e 100%);
  color: rgba(255,255,255,0.7);
  padding: 48px 24px 24px;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: #fff;
  font-size: 22px;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-link {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  padding: 4px 0;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--accent);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
}

/* ─── Toast Notifications ────────────────────────────────────────── */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  max-width: 360px;
  font-size: 14px;
  animation: slideIn 0.3s ease;
}

.toast-success { border-color: var(--success); }
.toast-danger { border-color: var(--danger); }
.toast-warning { border-color: var(--warning); }

@keyframes slideIn {
  from { transform: translateX(120%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ─── Loading Spinner ────────────────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

.spinner-primary {
  border-color: rgba(26,35,126,0.2);
  border-top-color: var(--primary);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Modal ──────────────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 9000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 32px;
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-xl);
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  justify-content: flex-end;
}

/* ─── Page Header ────────────────────────────────────────────────── */
.page-header {
  padding: calc(var(--nav-height) + 24px) 24px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

/* ─── Student Auth Pages ─────────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0d1b6e 0%, #1a237e 50%, #283593 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 460px;
  overflow: hidden;
}

.auth-card-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 32px;
  text-align: center;
  color: #fff;
}

.auth-card-header h1 {
  color: #fff;
  font-size: 24px;
  margin-top: 10px;
}

.auth-card-header p {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  margin-top: 4px;
}

.auth-card-body {
  padding: 32px;
}

/* ─── Registration Page ──────────────────────────────────────────── */
.registration-page {
  min-height: 100vh;
  padding: calc(var(--nav-height) + 24px) 24px 48px;
  background: var(--bg);
}

.registration-container {
  max-width: 900px;
  margin: 0 auto;
}

.registration-header {
  text-align: center;
  margin-bottom: 36px;
}

.registration-steps-bar {
  display: flex;
  gap: 0;
  margin-bottom: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 4px;
  overflow: hidden;
}

.reg-step-item {
  flex: 1;
  text-align: center;
  padding: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.reg-step-item.active {
  background: var(--primary);
  color: #fff;
}

/* ─── Student Dashboard ──────────────────────────────────────────── */
.student-dash {
  min-height: 100vh;
  background: var(--bg);
  padding-top: var(--nav-height);
}

.student-dash-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 32px 24px;
  color: #fff;
}

.student-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.student-info-item {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  padding: 16px;
}

.student-info-label {
  font-size: 11px;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.student-info-value {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
}

/* ─── Success Page ───────────────────────────────────────────────── */
.success-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0d1b6e 0%, #1a237e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.success-card {
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 48px;
  max-width: 540px;
  width: 100%;
  text-align: center;
}

.success-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--success) 0%, #43a047 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin: 0 auto 24px;
  box-shadow: 0 8px 28px rgba(46, 125, 50, 0.35);
  animation: successPop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes successPop {
  0% { transform: scale(0); }
  100% { transform: scale(1); }
}

/* ─── Error Page ─────────────────────────────────────────────────── */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}

.error-code {
  font-size: 100px;
  font-weight: 800;
  color: var(--primary);
  opacity: 0.15;
  line-height: 1;
}

/* ─── Pagination ─────────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 24px;
}

.page-btn {
  min-width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
}

.page-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.page-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ─── Utility Classes ────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.fw-bold { font-weight: 700; }
.fw-600 { font-weight: 600; }
.mt-auto { margin-top: auto; }
.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.gap-8 { gap: 8px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.w-100 { width: 100%; }

/* ─── Why Join Section ───────────────────────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.why-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: var(--transition);
}

.why-item:hover {
  border-color: rgba(26,35,126,0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.why-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  background: linear-gradient(135deg, rgba(26,35,126,0.1) 0%, rgba(57,73,171,0.1) 100%);
}

.avatar-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  font-weight: 700;
  flex-shrink: 0;
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}