/* ============================================================
   CODE ACADEMY — Design System & Fully Responsive CSS
   Primary: #1F3A5F  Secondary: #2F5D8C  Accent: #D99A2B
   Font: Inter (Google Fonts)
   ============================================================ */

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

/* ── CSS Custom Properties ─────────────────────────────────── */
:root {
  --color-primary:       #1F3A5F;
  --color-primary-hover: #162d4a;
  --color-secondary:     #2F5D8C;
  --color-accent:        #D99A2B;
  --color-accent-hover:  #c08820;
  --color-bg:            #F7F7F5;
  --color-surface:       #FFFFFF;
  --color-text:          #202124;
  --color-muted:         #6B7280;
  --color-border:        #E5E7EB;
  --color-success:       #2E7D32;
  --color-error:         #C62828;
  --color-info:          #1565C0;
  --color-warning:       #E65100;

  --shadow-sm:  0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:  0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg:  0 4px 16px rgba(0,0,0,0.12);

  --radius-sm:  6px;
  --radius-md:  8px;
  --radius-lg:  12px;

  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --sidebar-width: 250px;
  --navbar-height: 74px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.nav-open,
body.sidebar-open {
  overflow: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }

/* ── Typography ─────────────────────────────────────────────── */
h1 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); font-weight: 700; line-height: 1.25; color: var(--color-text); }
h2 { font-size: clamp(1.25rem, 2.5vw, 1.6rem); font-weight: 600; line-height: 1.3; color: var(--color-text); }
h3 { font-size: clamp(1.05rem, 2vw, 1.25rem); font-weight: 600; line-height: 1.4; color: var(--color-text); }
h4 { font-size: 0.95rem; font-weight: 600; color: var(--color-text); }
p  { color: var(--color-muted); line-height: 1.7; }

/* ── Container ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

main {
  flex: 1;
}

/* ── Public Navbar ──────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: var(--navbar-height);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}
.navbar-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  padding: 4px 0;
}
.brand-logo-img {
  height: 58px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
}
.brand-logo-admin {
  height: 48px;
  width: auto;
  max-width: 185px;
  object-fit: contain;
  display: block;
}
.brand-logo-auth {
  height: 72px;
  width: auto;
  max-width: 250px;
  object-fit: contain;
  margin: 0 auto;
  display: block;
}
.brand-logo-footer {
  height: 58px;
  width: auto;
  max-width: 210px;
  object-fit: contain;
  display: inline-block;
  margin-bottom: 12px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.navbar-nav a {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.15s, background 0.15s;
}
.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--color-primary);
  background: rgba(31,58,95,0.07);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* ── Hamburger Toggle Button ─────────────────────────────────── */
.nav-mobile-toggle {
  display: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px 9px;
  color: var(--color-primary);
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  min-width: 38px;
  min-height: 38px;
  line-height: 1;
  transition: background 0.15s, border-color 0.15s;
}
.nav-mobile-toggle:hover {
  background: var(--color-bg);
  border-color: var(--color-primary);
}
.nav-mobile-toggle svg {
  width: 22px;
  height: 22px;
  min-width: 22px;
  min-height: 22px;
  display: block;
  stroke: var(--color-primary);
}

/* ── Mobile Navigation Drawer & Overlay ─────────────────────── */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 36, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 9998;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.mobile-nav-overlay.open {
  display: block;
  opacity: 1;
}

.navbar-mobile {
  position: fixed;
  top: 0;
  right: -340px;
  width: 320px;
  max-width: 88vw;
  height: 100vh;
  height: 100dvh;
  background: var(--color-surface);
  box-shadow: -8px 0 30px rgba(0, 0, 0, 0.2);
  padding: 20px 18px 28px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  transition: right 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.navbar-mobile.open {
  right: 0;
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 10px;
}
.mobile-nav-header .brand-logo-img {
  height: 42px;
  width: auto;
}
.mobile-nav-close {
  background: rgba(31, 58, 95, 0.06);
  border: 1px solid var(--color-border);
  cursor: pointer;
  padding: 6px;
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}
.mobile-nav-close:hover {
  color: var(--color-text);
  background: rgba(31, 58, 95, 0.12);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.mobile-nav-links a {
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--color-text);
  transition: background 0.15s, color 0.15s;
}
.mobile-nav-links a:hover,
.mobile-nav-links a.active {
  background: rgba(31, 58, 95, 0.08);
  color: var(--color-primary);
  font-weight: 600;
}

.mobile-nav-actions {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-bottom: 16px;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  text-align: center;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

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

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background: rgba(31,58,95,0.05);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-accent:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--color-muted);
  border-color: var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.btn-danger {
  background: var(--color-error);
  color: #fff;
  border-color: var(--color-error);
}
.btn-danger:hover {
  background: #a31f1f;
  border-color: #a31f1f;
}

.btn-success {
  background: var(--color-success);
  color: #fff;
  border-color: var(--color-success);
}
.btn-success:hover {
  background: #236327;
}

.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-lg { padding: 12px 24px; font-size: 0.95rem; }
.btn-block { width: 100%; display: flex; }

/* ── Form Elements ──────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 18px;
}
.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}
.form-label .required { color: var(--color-error); }

.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}
.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(31,58,95,0.1);
}

.form-control.is-invalid,
.is-invalid {
  border-color: #dc2626 !important;
  background-color: #fffbfb !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12) !important;
}
.form-control.is-invalid:focus {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.22) !important;
}

.form-error,
.form-error-js,
.invalid-feedback {
  display: flex !important;
  align-items: center;
  gap: 5px;
  font-size: 0.82rem;
  font-weight: 500;
  color: #dc2626;
  margin-top: 6px;
  line-height: 1.4;
  width: 100%;
  clear: both;
}
.form-error::before,
.form-error-js::before,
.invalid-feedback::before {
  content: '⚠️';
  font-size: 0.85em;
  flex-shrink: 0;
}
.form-control.is-invalid { border-color: var(--color-error); }
.form-control::placeholder { color: #9CA3AF; }

textarea.form-control { min-height: 110px; resize: vertical; }
select.form-control { cursor: pointer; }

.form-error { font-size: 0.8rem; color: var(--color-error); margin-top: 3px; }
.form-hint  { font-size: 0.78rem; color: var(--color-muted); margin-top: 3px; }

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

.form-check { display: flex; align-items: center; gap: 8px; }
.form-check-input { width: 16px; height: 16px; accent-color: var(--color-primary); cursor: pointer; }
.form-check-label { font-size: 0.875rem; font-weight: 500; cursor: pointer; }

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.card-body { padding: 24px; }
.card-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 0.95rem;
}
.card-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.badge-primary { background: rgba(31,58,95,0.1); color: var(--color-primary); }
.badge-success { background: rgba(46,125,50,0.1); color: var(--color-success); }
.badge-error   { background: rgba(198,40,40,0.1); color: var(--color-error); }
.badge-accent  { background: rgba(217,154,43,0.15); color: #92660c; }
.badge-muted   { background: var(--color-bg); color: var(--color-muted); border: 1px solid var(--color-border); }
.badge-beginner     { background: #E8F5E9; color: #2E7D32; }
.badge-intermediate { background: #FFF3E0; color: #E65100; }
.badge-advanced     { background: #FFEBEE; color: #C62828; }

/* ── Course Card ─────────────────────────────────────────────── */
.course-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.course-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.course-card-img {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
}
.course-card-img img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.3s;
}
.course-card:hover .course-card-img img {
  transform: scale(1.02);
}

.course-card-category {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(255,255,255,0.95);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-primary);
}
.course-card-body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.course-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.course-card-desc {
  font-size: 0.82rem;
  color: var(--color-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}
.course-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  padding-top: 6px;
  font-size: 0.78rem;
  color: var(--color-muted);
}
.course-card-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.course-price {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
}
.course-price-original {
  font-size: 0.78rem;
  color: var(--color-muted);
  text-decoration: line-through;
  margin-left: 4px;
}

/* ── Responsive Course Grid ─────────────────────────────────── */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}

/* ── Alert / Flash Messages ──────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
  word-break: break-word;
}
.alert-success { background: #E8F5E9; color: #1B5E20; border: 1px solid #A5D6A7; }
.alert-error   { background: #FFEBEE; color: #B71C1C; border: 1px solid #EF9A9A; }
.alert-info    { background: #E3F2FD; color: #0D47A1; border: 1px solid #90CAF9; }
.alert-warning { background: #FFF8E1; color: #E65100; border: 1px solid #FFE082; }
.alert-close   { margin-left: auto; background: none; border: none; cursor: pointer; opacity: 0.6; font-size: 1rem; line-height: 1; color: inherit; }
.alert-close:hover { opacity: 1; }

/* ── Tables & Horizontal Scroll Container ────────────────────── */
.table-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}
.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}
.table th {
  padding: 12px 16px;
  background: var(--color-bg);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-muted);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
.table td {
  padding: 12px 16px;
  font-size: 0.875rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: rgba(247,247,245,0.7); }
.table-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* ── Sections ────────────────────────────────────────────────── */
.section { padding: 56px 0; }
.section-sm { padding: 32px 0; }
.section-header { text-align: center; margin-bottom: 36px; }
.section-header h2 { margin-bottom: 8px; }
.section-header p { max-width: 520px; margin: 0 auto; }
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* ── Page Header Banner ───────────────────────────────────────── */
.page-header {
  background: linear-gradient(135deg, #1F3A5F 0%, #152843 100%) !important;
  color: #ffffff !important;
  padding: 44px 0 36px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.page-header h1 {
  color: #ffffff !important;
  margin-bottom: 8px;
}

.page-header p {
  color: rgba(255, 255, 255, 0.85) !important;
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-header .hero-label {
  color: #F3C973 !important;
}

.page-header .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.75);
}

.page-header .breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
}

.page-header .breadcrumb a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.page-header .breadcrumb-sep {
  color: rgba(255, 255, 255, 0.45);
}

/* ── Blog Article Content Typography ─────────────────────────── */
.blog-article-content {
  color: var(--color-text);
  line-height: 1.9;
  font-size: 1.02rem;
}

.blog-article-content h2,
.blog-article-content h3,
.blog-article-content h4 {
  color: var(--color-primary);
  margin-top: 32px;
  margin-bottom: 12px;
  font-weight: 700;
}

.blog-article-content p {
  margin-bottom: 20px;
}

.blog-article-content ul,
.blog-article-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.blog-article-content li {
  margin-bottom: 8px;
}

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  padding: 48px 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.hero-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}
.hero h1 { margin-bottom: 14px; }
.hero p { font-size: 1rem; color: var(--color-muted); margin-bottom: 24px; line-height: 1.65; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}
.hero-image img { width: 100%; height: 320px; object-fit: cover; }
.hero-stats {
  display: flex;
  gap: 28px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}
.hero-stat-num { font-size: 1.4rem; font-weight: 700; color: var(--color-primary); }
.hero-stat-label { font-size: 0.8rem; color: var(--color-muted); }

/* ── Features Grid (Why Choose Us) ──────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

/* ── Accordion (Curriculum) ─────────────────────────────────── */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.accordion-item + .accordion-item { border-top: 1px solid var(--color-border); }
.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--color-bg);
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
  gap: 12px;
}
.accordion-header:hover { background: #f0f0ee; }
.accordion-header h4 { font-size: 0.92rem; font-weight: 600; color: var(--color-text); }
.accordion-meta { font-size: 0.78rem; color: var(--color-muted); margin-top: 2px; }
.accordion-icon {
  width: 20px;
  height: 20px;
  color: var(--color-muted);
  transition: transform 0.2s;
  flex-shrink: 0;
}
.accordion-item.open .accordion-icon { transform: rotate(180deg); }
.accordion-body { display: none; }
.accordion-item.open .accordion-body { display: block; }
.lesson-list { padding: 6px 0; }
.lesson-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--color-border);
  gap: 12px;
}
.lesson-item:last-child { border-bottom: none; }
.lesson-title { display: flex; align-items: center; gap: 10px; color: var(--color-text); }
.lesson-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1.5px solid var(--color-primary);
  flex-shrink: 0;
}
.lesson-duration { font-size: 0.78rem; color: var(--color-muted); white-space: nowrap; }

/* ── Page Header ─────────────────────────────────────────────── */
.page-header {
  padding: 32px 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.page-header h1 { font-size: clamp(1.4rem, 3vw, 1.8rem); margin-bottom: 4px; }
.page-header p { font-size: 0.9rem; }
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 6px;
}
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb-sep { color: var(--color-border); }

/* ── Filter Bar ──────────────────────────────────────────────── */
.filter-bar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
  margin-bottom: 24px;
}
.filter-bar .form-group {
  margin-bottom: 0;
  min-width: 140px;
  flex: 1 1 180px;
}
.filter-bar .btn {
  flex-shrink: 0;
}

/* ── Course Detail Layout ────────────────────────────────────── */
.course-detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  align-items: start;
}
.course-sidebar {
  position: sticky;
  top: 84px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.course-sidebar-img img { width: 100%; height: 190px; object-fit: cover; }
.course-sidebar-body { padding: 20px; }
.course-sidebar-price { font-size: 1.5rem; font-weight: 700; color: var(--color-primary); margin-bottom: 2px; }
.course-sidebar-original { font-size: 0.85rem; color: var(--color-muted); text-decoration: line-through; }
.course-sidebar-meta { margin: 16px 0; }
/* ── Batch Select & Payment QR Grid (Enrollment Page) ── */
.batch-select-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.batch-card-option {
  padding: 16px;
  cursor: pointer;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s, background 0.2s;
}
.batch-card-option:hover {
  border-color: var(--color-primary);
}

.payment-qr-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  align-items: center;
}
.qr-box-container {
  text-align: center;
  background: var(--color-surface);
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
  .batch-select-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .payment-qr-grid {
    grid-template-columns: 1fr;
    gap: 18px;
    text-align: center;
  }
  .qr-box-container {
    max-width: 240px;
    margin: 0 auto;
  }
}

/* ── About & Contact Responsive Grids ────────────────────────── */
.about-intro-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.about-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.about-values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.contact-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}

/* ── Footer ──────────────────────────────────────────────────── */
.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.85);
  padding: 44px 0 0;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 36px;
}
.footer-brand { font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.footer-brand span { color: var(--color-accent); }
.footer-desc { font-size: 0.85rem; line-height: 1.7; color: rgba(255,255,255,0.65); }
.footer-col h4 { font-size: 0.85rem; font-weight: 600; color: #fff; margin-bottom: 12px; }
.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 8px;
  transition: color 0.15s;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 18px 0;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: rgba(255,255,255,0.5);
}

/* ── Auth Pages ──────────────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  padding: 32px 16px;
}
.auth-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  width: 100%;
  max-width: 440px;
}
.auth-logo { text-align: center; margin-bottom: 24px; }
.auth-logo-text { font-size: 1.25rem; font-weight: 700; color: var(--color-primary); }
.auth-logo-text span { color: var(--color-accent); }
.auth-title { font-size: 1.25rem; font-weight: 700; text-align: center; margin-bottom: 4px; }
.auth-subtitle { font-size: 0.85rem; color: var(--color-muted); text-align: center; margin-bottom: 24px; }
.auth-footer { text-align: center; margin-top: 20px; font-size: 0.875rem; color: var(--color-muted); }
.auth-footer a { color: var(--color-primary); font-weight: 500; }
.auth-footer a:hover { text-decoration: underline; }
.auth-divider { border: none; border-top: 1px solid var(--color-border); margin: 20px 0; }

/* ── Password Input Group with Eye Toggle ────────────────────── */
.password-input-group {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}
.password-input-group .form-control {
  padding-right: 44px !important;
  width: 100%;
}
.password-toggle-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
  z-index: 5;
  user-select: none;
  line-height: 1;
}
.password-toggle-btn:hover {
  color: var(--color-primary);
  background: rgba(31,58,95,0.08);
}
.password-toggle-btn svg {
  width: 20px;
  height: 20px;
  display: block;
}

/* ── Admin Layout ────────────────────────────────────────────── */
.admin-wrapper {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--color-primary);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  z-index: 210;
  transition: transform 0.25s ease;
}
.admin-sidebar-logo {
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
}
.admin-sidebar-logo span { color: var(--color-accent); }
.admin-sidebar-close {
  display: none;
  background: none;
  border: none;
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  padding: 4px;
}
.admin-sidebar-close:hover { color: #fff; }

.admin-sidebar-label {
  padding: 16px 20px 6px;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: rgba(255,255,255,0.4);
}
.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  transition: background 0.15s, color 0.15s;
}
.admin-nav-link:hover,
.admin-nav-link.active {
  background: rgba(255,255,255,0.1);
  color: #fff;
}
.admin-nav-link.active {
  border-left: 3px solid var(--color-accent);
}
.admin-nav-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.admin-sidebar-bottom {
  margin-top: auto;
  padding: 14px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.admin-sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 205;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.admin-sidebar-overlay.open {
  display: block;
  opacity: 1;
}

.admin-main {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.admin-topbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}
.admin-mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 4px 6px;
  cursor: pointer;
  color: var(--color-text);
  align-items: center;
  justify-content: center;
}
.admin-topbar-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}
.admin-topbar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
}
.admin-topbar-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
}

.admin-content {
  padding: 24px;
  flex: 1;
  background: var(--color-bg);
  min-width: 0;
}
.admin-content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.admin-content-header h1 {
  font-size: clamp(1.2rem, 2.5vw, 1.45rem);
  font-weight: 700;
}

/* ── Admin Responsive Layout Grids ──────────────────────────── */
.admin-form-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 20px;
  align-items: start;
}
.admin-detail-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 20px;
  align-items: start;
}
.admin-dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ── Stat Cards ──────────────────────────────────────────────── */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-cards-2 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
}
.stat-card-label {
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-bottom: 6px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.stat-card-value {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--color-text);
}
.stat-card-sub { font-size: 0.78rem; color: var(--color-muted); margin-top: 4px; }

/* ── Pagination ──────────────────────────────────────────────── */
.pagination {
  display: flex;
  gap: 4px;
  align-items: center;
  justify-content: center;
  margin-top: 28px;
  flex-wrap: wrap;
}
.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: var(--color-surface);
  transition: all 0.15s;
}
.pagination a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.pagination .active span,
.pagination [aria-current="page"] span {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ── Status & Level Labels ───────────────────────────────────── */
.level-beginner     { color: var(--color-success); font-weight: 500; }
.level-intermediate { color: #E65100; font-weight: 500; }
.level-advanced     { color: var(--color-error); font-weight: 500; }

.status-published { color: var(--color-success); font-weight: 600; }
.status-draft     { color: var(--color-muted); font-weight: 500; }
.status-active    { color: var(--color-success); font-weight: 500; }
.status-inactive  { color: var(--color-muted); font-weight: 500; }

/* ── Empty State ─────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--color-muted);
}
.empty-state h3 { font-size: 1rem; color: var(--color-text); margin-bottom: 6px; }
.empty-state p { font-size: 0.875rem; }

/* ── Image Thumbnail Preview ─────────────────────────────────── */
.thumb-preview {
  width: 100%;
  max-height: 180px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-top: 6px;
  border: 1px solid var(--color-border);
}

/* ── Utilities ───────────────────────────────────────────────── */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.text-muted { color: var(--color-muted); }
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-sm { font-size: 0.85rem; }
.text-center { text-align: center; }
.w-full { width: 100%; }
.d-none-mobile { display: inline-flex; }

/* ==============================================================
   RESPONSIVE MEDIA QUERIES
   ============================================================== */

/* ── Tablets & Below (<= 992px) ──────────────────────────────── */
@media (max-width: 992px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-image {
    max-width: 540px;
    margin: 0 auto;
  }
  .course-detail-layout {
    grid-template-columns: 1fr;
  }
  .course-sidebar {
    position: static;
  }
  .about-intro-grid,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .admin-form-layout,
  .admin-detail-layout,
  .admin-dashboard-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ── Mobile Landscape & Tablets (<= 768px) ───────────────────── */
@media (max-width: 768px) {
  .navbar-nav { display: none !important; }
  .d-none-mobile { display: none !important; }
  .nav-mobile-toggle { display: inline-flex !important; }

  /* Admin Sidebar on Mobile */
  .admin-sidebar {
    transform: translateX(-100%);
  }
  .admin-sidebar.open {
    transform: translateX(0);
  }
  .admin-sidebar-close {
    display: inline-block;
  }
  .admin-mobile-toggle {
    display: inline-flex;
  }
  .admin-main {
    margin-left: 0;
  }

  .form-row,
  .form-row-3 {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-bar .form-group {
    min-width: 100%;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
  }

  .admin-content {
    padding: 16px;
  }
  .admin-topbar {
    padding: 0 16px;
  }
  .profile-layout {
    grid-template-columns: 1fr !important;
  }
  .card-body {
    padding: 18px;
  }
}

/* ── Small Mobile Phones (<= 480px) ──────────────────────────── */
@media (max-width: 480px) {
  .container {
    padding: 0 14px;
  }
  .courses-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
  }
  .hero-stat-num {
    font-size: 1.25rem;
  }
  .auth-card {
    padding: 24px 16px;
  }
  .table th,
  .table td {
    padding: 10px 12px;
    font-size: 0.82rem;
  }
  .admin-content-header {
    flex-direction: column;
    align-items: stretch;
  }
  .admin-content-header .btn {
    width: 100%;
  }
}

/* ==============================================================
   WHOLE APPLICATION FULL-PAGE GLOBAL LOADER & PROGRESS BAR
   ============================================================== */
.app-global-loader {
  position: fixed;
  inset: 0;
  background: rgba(247, 247, 245, 0.90);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  pointer-events: none;
}

.app-global-loader.active {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
}

.loader-content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-width: 220px;
  max-width: 90vw;
}

.loader-spinner-ring {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 3.5px solid rgba(31, 58, 95, 0.12);
  border-top-color: var(--color-primary);
  border-right-color: var(--color-accent);
  animation: spin 0.8s linear infinite;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.spinner-core {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.85;
  animation: pulse 1.2s ease-in-out infinite alternate;
}

@keyframes pulse {
  from { transform: scale(0.6); opacity: 0.4; }
  to { transform: scale(1.1); opacity: 1; }
}

.loader-logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.3px;
  margin-bottom: 4px;
}

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

.loader-message {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-muted);
  min-height: 20px;
}

.top-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--color-accent);
  box-shadow: 0 0 10px rgba(217, 154, 43, 0.8);
  z-index: 1000000;
  transition: width 0.2s ease, opacity 0.3s ease;
  pointer-events: none;
  opacity: 0;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.btn-spinner {
  width: 16px;
  height: 16px;
  animation: spin 0.75s linear infinite;
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

.btn.btn-loading {
  position: relative;
  cursor: wait !important;
  opacity: 0.82;
  pointer-events: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  border-radius: inherit;
}

/* ==============================================================
   SWEETALERT2 CUSTOM THEME
   ============================================================== */
.swal2-popup {
  border-radius: var(--radius-lg) !important;
  font-family: var(--font-sans) !important;
  padding: 28px 24px !important;
  border: 1px solid var(--color-border) !important;
  box-shadow: var(--shadow-lg) !important;
}

.swal2-title {
  font-size: 1.25rem !important;
  font-weight: 700 !important;
  color: var(--color-text) !important;
  padding: 0 !important;
  margin-bottom: 10px !important;
}

.swal2-html-container {
  font-size: 0.92rem !important;
  color: var(--color-muted) !important;
  line-height: 1.6 !important;
  margin: 0 0 20px !important;
}

.swal2-actions {
  gap: 10px !important;
  margin-top: 10px !important;
}

.swal2-icon.swal2-question {
  border-color: var(--color-primary) !important;
  color: var(--color-primary) !important;
}

.swal2-icon.swal2-success {
  border-color: var(--color-success) !important;
  color: var(--color-success) !important;
}

.swal2-icon.swal2-warning {
  border-color: var(--color-warning) !important;
  color: var(--color-warning) !important;
}

.swal2-icon.swal2-error {
  border-color: var(--color-error) !important;
  color: var(--color-error) !important;
}

/* ── SweetAlert2 Toast Styling ── */
.swal2-popup.swal2-toast {
  padding: 12px 18px !important;
  box-shadow: 0 4px 18px rgba(0,0,0,0.12) !important;
  border-radius: var(--radius-md) !important;
  background: var(--color-surface) !important;
  border: 1px solid var(--color-border) !important;
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
  max-width: 380px !important;
}

.swal2-popup.swal2-toast .swal2-title {
  font-size: 0.88rem !important;
  font-weight: 600 !important;
  color: var(--color-text) !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 1.4 !important;
}

.swal2-popup.swal2-toast .swal2-icon {
  margin: 0 !important;
  transform: scale(0.75) !important;
  flex-shrink: 0 !important;
}

.swal2-timer-progress-bar {
  background: var(--color-accent) !important;
}

/* ==============================================================
   CLEAN RESPONSIVE PAGINATION (WHOLE APPLICATION)
   ============================================================== */
.pagination {
  margin-top: 24px;
}

.custom-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 20px;
  padding: 12px 0;
}

.pagination-summary {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.pagination-summary .font-medium {
  font-weight: 600;
  color: var(--color-text);
}

.pagination-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 4px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.page-item {
  display: inline-block;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.15s ease;
  user-select: none;
}

.page-link:hover {
  background: rgba(31, 58, 95, 0.06);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.page-item.active .page-link {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  font-weight: 600;
  cursor: default;
}

.page-item.disabled .page-link {
  color: #adb5bd;
  background: var(--color-bg);
  border-color: var(--color-border);
  cursor: not-allowed;
  opacity: 0.7;
}

/* ==============================================================
   SPLIT SCREEN AUTHENTICATION EXPERIENCE & COACHING HERO
   ============================================================== */
.auth-split-layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
  background: var(--color-surface);
}

/* ── Left Hero Pane ── */
.auth-hero-pane {
  flex: 1.15;
  background: linear-gradient(140deg, #0A1628 0%, #122543 45%, #1F3A5F 100%);
  color: #ffffff;
  padding: 48px 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.08);
}

/* Background animated glow orbs */
.auth-hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.55;
  z-index: 1;
}

.auth-hero-glow.glow-1 {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(217, 154, 43, 0.35) 0%, transparent 70%);
  top: -80px;
  right: -60px;
  animation: floatOrb1 12s ease-in-out infinite alternate;
}

.auth-hero-glow.glow-2 {
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, transparent 70%);
  bottom: -100px;
  left: -80px;
  animation: floatOrb2 15s ease-in-out infinite alternate;
}

@keyframes floatOrb1 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-40px, 50px) scale(1.15); }
}

@keyframes floatOrb2 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, -40px) scale(1.1); }
}

.auth-hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  height: 100%;
  justify-content: space-between;
}

.auth-hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.auth-hero-logo {
  height: 44px;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.auth-hero-logo:hover {
  transform: scale(1.03);
}

.auth-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  transition: all 0.2s ease;
}

.auth-back-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
  transform: translateX(-2px);
}

/* Hero Badge */
.auth-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(243, 201, 115, 0.15);
  border: 1px solid rgba(243, 201, 115, 0.35);
  color: var(--color-accent);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.auth-pulse-dot {
  width: 8px;
  height: 8px;
  background: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 8px #22C55E;
  animation: pulseGreen 1.8s infinite;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.auth-hero-heading {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.25;
  color: #ffffff;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.auth-hero-heading .accent-text {
  background: linear-gradient(135deg, #F9D98D 0%, #D99A2B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.auth-hero-desc {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  max-width: 520px;
  margin-bottom: 28px;
}

/* ── Coaching Roadmap & Batch Schedule Card ── */
.auth-coaching-schedule-card {
  background: rgba(14, 28, 48, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(14px);
  margin-bottom: 26px;
  overflow: hidden;
}

.schedule-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-wrap: wrap;
  gap: 8px;
}

.schedule-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #38BDF8;
  letter-spacing: 0.5px;
}

.schedule-location {
  font-size: 0.74rem;
  color: rgba(255, 255, 255, 0.7);
}

.schedule-timeline {
  padding: 16px 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.timeline-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.step-icon {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.step-content strong {
  display: block;
  font-size: 0.85rem;
  color: #ffffff;
  font-weight: 600;
  margin-bottom: 2px;
}

.step-content p {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.72);
  margin: 0;
  line-height: 1.4;
}

.schedule-footer-bar {
  padding: 10px 18px;
  background: rgba(243, 201, 115, 0.1);
  border-top: 1px solid rgba(243, 201, 115, 0.2);
}

.seat-alert {
  font-size: 0.76rem;
  color: #F9D98D;
  display: flex;
  align-items: center;
  gap: 6px;
}

.seat-alert strong {
  color: #ffffff;
}

/* ── Coaching Feature Pills Row ── */
.auth-coaching-pills {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.coaching-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 10px 14px;
  border-radius: 10px;
  backdrop-filter: blur(8px);
  flex: 1;
  min-width: 150px;
  transition: transform 0.25s ease, background 0.25s ease;
}

.coaching-pill:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.1);
}

.coaching-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.coaching-pill strong {
  display: block;
  font-size: 0.8rem;
  color: #ffffff;
  line-height: 1.2;
}

.coaching-pill small {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.65);
}

/* ── Floating Tech Badges Animation ── */
.auth-floating-tech {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.9);
  animation: floatTag 4s ease-in-out infinite alternate;
}

.tech-tag:nth-child(2) { animation-delay: 0.8s; }
.tech-tag:nth-child(3) { animation-delay: 1.6s; }
.tech-tag:nth-child(4) { animation-delay: 2.4s; }
.tech-tag:nth-child(5) { animation-delay: 3.2s; }

@keyframes floatTag {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-6px); }
}

/* Hero Footer / Social Proof */
.auth-hero-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.student-proof-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar-stack {
  display: flex;
  align-items: center;
}

.avatar-stack img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid #1F3A5F;
  margin-left: -8px;
  object-fit: cover;
}

.avatar-stack img:first-child {
  margin-left: 0;
}

.student-proof-text {
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}

/* ── Right Form Pane ── */
.auth-form-pane {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 32px;
  background: var(--color-bg);
  min-height: 100vh;
}

.auth-card-panel {
  width: 100%;
  max-width: 460px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 40px 36px;
  box-shadow: 0 10px 30px rgba(31, 58, 95, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  animation: authCardEnter 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes authCardEnter {
  0% { opacity: 0; transform: translateY(16px); }
  100% { opacity: 1; transform: translateY(0); }
}

.auth-mobile-header {
  display: none;
  text-align: center;
  margin-bottom: 24px;
}

.auth-title {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.auth-subtitle {
  font-size: 0.88rem;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.auth-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 24px 0 16px;
}

.auth-footer {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* ── Responsive Mobile & Tablet Breakpoints ── */
/* ── Responsive Mobile & Tablet Breakpoints ── */
@media (max-width: 1024px) {
  .auth-hero-pane {
    padding: 36px 32px;
  }
  .auth-hero-heading {
    font-size: 1.8rem;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .about-intro-grid,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .blogs-home-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 860px) {
  .auth-split-layout {
    flex-direction: column;
    min-height: 100vh;
  }
  .auth-hero-pane {
    display: none !important;
  }
  .auth-form-pane {
    width: 100%;
    min-height: 100vh;
    padding: 32px 16px;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .auth-card-panel {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    padding: 32px 24px;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    background: var(--color-surface);
    width: 100%;
    max-width: 440px;
  }
  .auth-mobile-header {
    display: block;
    margin-bottom: 20px;
  }
  .auth-mobile-header .brand-logo-auth {
    height: 48px;
    max-width: 200px;
    margin: 0 auto 12px;
  }
  .course-detail-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .course-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .section {
    padding: 40px 0;
  }
  .section-sm {
    padding: 24px 0;
  }
  .section-header {
    margin-bottom: 24px;
  }
  .section-header h2 {
    font-size: 1.4rem;
  }
  .hero {
    padding: 32px 0;
  }
  .hero h1 {
    font-size: 1.65rem;
    line-height: 1.3;
  }
  .hero p {
    font-size: 0.9rem;
    margin-bottom: 20px;
  }
  .hero-image img {
    height: 220px;
  }
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    text-align: center;
  }
  .hero-stat-num {
    font-size: 1.25rem;
  }
  .hero-stat-label {
    font-size: 0.72rem;
  }
  .filter-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 14px;
    margin-bottom: 20px;
  }
  .filter-bar .form-group:first-child {
    grid-column: 1 / -1;
  }
  .filter-bar .btn,
  .filter-bar a.btn {
    grid-column: span 1;
    width: 100%;
  }
  .courses-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .blogs-home-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    margin-bottom: 28px;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .categories-wrapper {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 4px 0 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    flex-wrap: nowrap !important;
    justify-content: flex-start !important;
  }
  .categories-wrapper::-webkit-scrollbar {
    display: none;
  }
  .categories-wrapper .btn {
    white-space: nowrap;
    flex-shrink: 0;
  }
  .form-row,
  .form-row-3 {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  #starRatingContainer {
    flex-direction: column;
    align-items: flex-start !important;
    gap: 4px !important;
  }
  #starPicker {
    white-space: nowrap !important;
    font-size: 1.6rem !important;
  }
  #starRatingLabel {
    margin-left: 0 !important;
    font-size: 0.8rem !important;
  }
  .footer-inner {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .navbar-inner {
    gap: 8px;
  }
  .brand-logo-img {
    height: 44px;
    max-width: 165px;
  }
  .page-header {
    padding: 24px 0 20px;
  }
  .page-header h1 {
    font-size: 1.35rem;
  }
  .filter-bar {
    grid-template-columns: 1fr;
  }
  .filter-bar .btn,
  .filter-bar a.btn {
    grid-column: 1 / -1;
  }
  .course-card-img img {
    height: 170px;
  }
  .card-body {
    padding: 16px;
  }
}