/* ============================================
   TechLearn — Online Tech Tutorial Platform
   ============================================ */

:root {
  /* 300plus.ng brand palette */
  --color-primary: #06bbcc;
  --color-primary-dark: #0596a3;
  --color-primary-light: #33c9d8;
  --color-bg: #ffffff;
  --color-bg-elevated: #f0fbfc;
  --color-bg-card: #ffffff;
  --color-surface: #f0fbfc;
  --color-dark: #181d38;
  --color-border: #e8f4f5;
  --color-border-hover: #c5e8ec;
  --color-text: #181d38;
  --color-text-muted: #5a6178;
  --color-text-dim: #8b92a8;
  --color-accent: #06bbcc;
  --color-accent-light: #33c9d8;
  --color-accent-glow: rgba(6, 187, 204, 0.25);
  --color-success: #06bbcc;
  --color-warning: #f5a623;
  --font-sans: "Heebo", system-ui, -apple-system, sans-serif;
  --font-heading: "Nunito", "Heebo", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 12px rgba(24, 29, 56, 0.06);
  --shadow-md: 0 8px 30px rgba(24, 29, 56, 0.1);
  --shadow-glow: 0 8px 24px var(--color-accent-glow);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 72px;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ---- Background pattern ---- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(6, 187, 204, 0.08), transparent),
    radial-gradient(ellipse 50% 40% at 100% 80%, rgba(6, 187, 204, 0.04), transparent);
  pointer-events: none;
  z-index: -1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  color: #fff;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.nav-cta {
  padding: 0.55rem 1.25rem;
  background: var(--color-primary);
  color: #fff !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-family: var(--font-heading);
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: 0.5rem;
}

/* ---- Hero ---- */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
  background: linear-gradient(rgba(24, 29, 56, 0.85), rgba(24, 29, 56, 0.85)),
    linear-gradient(135deg, #181d38 0%, #0f172a 100%);
  color: #fff;
}

.hero .hero-badge {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.85);
}

.hero p {
  color: rgba(255, 255, 255, 0.75);
}

.hero .stat-item strong {
  color: var(--color-primary-light);
}

.hero .stat-item span {
  color: rgba(255, 255, 255, 0.6);
}

.hero .hero-stats {
  border-top-color: rgba(255, 255, 255, 0.12);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.hero-badge span {
  width: 8px;
  height: 8px;
  background: var(--color-primary-light);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.hero h1 .gradient-text {
  color: var(--color-primary-light);
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

.stat-item strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
}

.stat-item span {
  font-size: 0.875rem;
  color: var(--color-text-dim);
}

/* ---- Section headers ---- */
.section {
  padding: 4rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  font-family: var(--font-heading);
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* ---- Program cards ---- */
.program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.program-card {
  position: relative;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.program-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--card-accent, var(--color-accent)) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.program-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.program-card:hover::before {
  opacity: 0.06;
}

.program-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.program-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  position: relative;
  z-index: 1;
}

.program-icon i {
  line-height: 1;
}

.program-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.program-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  flex: 1;
  position: relative;
  z-index: 1;
}

.program-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-dim);
  position: relative;
  z-index: 1;
}

.program-meta span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.program-card .enroll-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  position: relative;
  z-index: 1;
  margin-top: auto;
}

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

.program-meta i {
  color: var(--color-primary);
  font-size: 0.85rem;
}

/* ---- Features ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.feature-item {
  padding: 1.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.feature-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ---- Footer ---- */
.site-footer {
  padding: 3rem 0 2rem;
  border-top: none;
  margin-top: 2rem;
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.85);
}

.site-footer .logo {
  color: #fff;
}

.site-footer .footer-brand p {
  color: rgba(255, 255, 255, 0.65);
}

.site-footer .footer-col h4 {
  color: rgba(255, 255, 255, 0.5);
}

.site-footer .footer-col a {
  color: rgba(255, 255, 255, 0.65);
}

.site-footer .footer-col a:hover {
  color: var(--color-primary-light);
}

.site-footer .footer-bottom {
  border-top-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.45);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  margin-top: 0.75rem;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 1rem;
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ============================================
   Registration Page
   ============================================ */

.register-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.register-layout {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: calc(100vh - var(--header-height));
}

.register-info {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--color-bg-elevated);
  border-right: 1px solid var(--color-border);
}

.register-info-inner {
  max-width: 420px;
  margin: 0 auto;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  transition: color var(--transition);
}

.back-link:hover {
  color: var(--color-text);
}

.selected-program {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
}

.selected-program-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  background: var(--color-primary);
  color: #fff;
  flex-shrink: 0;
}

.selected-program h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.selected-program p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.register-benefits {
  margin-top: 2rem;
}

.register-benefits h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.register-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.register-benefits li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--color-primary);
  flex-shrink: 0;
}

.register-form-panel {
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.register-form-wrapper {
  width: 100%;
  max-width: 440px;
}

.register-form-wrapper h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.register-form-wrapper > p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.form-group label .required {
  color: var(--color-warning);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.925rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-dim);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-top: 0.35rem;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-accent);
  cursor: pointer;
  flex-shrink: 0;
}

.checkbox-group label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1.5;
}

.checkbox-group a {
  color: var(--color-accent-light);
  text-decoration: underline;
}

.btn-primary {
  width: 100%;
  padding: 0.85rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

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

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

.form-footer {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.form-footer a {
  color: var(--color-accent-light);
  font-weight: 500;
}

/* Success state */
.success-message {
  display: none;
  text-align: center;
  padding: 2rem;
}

.success-message.visible {
  display: block;
}

.success-icon {
  width: 72px;
  height: 72px;
  background: rgba(6, 187, 204, 0.15);
  color: var(--color-primary);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 2rem;
  margin: 0 auto 1.5rem;
}

.back-link i {
  font-size: 0.8rem;
}

.success-message h2 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.success-message p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.925rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--transition);
}

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

.register-form.hidden {
  display: none;
}

/* Filter tabs */
.filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.filter-tab {
  padding: 0.5rem 1.15rem;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-muted);
  font-family: inherit;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-tab:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text);
}

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

#features {
  background: var(--color-bg-elevated);
}

#about {
  background: var(--color-bg);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .register-layout {
    grid-template-columns: 1fr;
  }

  .register-info {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 2rem;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 1.5rem;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    padding: 3rem 0 2.5rem;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}

/* ============================================
   Simplified pages
   ============================================ */

.hero-simple {
  padding: 4rem 0 3rem;
  text-align: center;
}

.hero-simple h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 1rem;
  color: #fff;
}

.hero-simple p {
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto 1.75rem;
}

.btn-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: auto;
  padding: 0.85rem 1.75rem;
}

.simple-title {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.5rem;
}

.simple-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.section-simple {
  padding: 3rem 0;
  background: var(--color-bg-elevated);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.step-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
}

.step-num {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.step-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.program-grid-simple {
  gap: 1rem;
}

.program-card-simple .card-price {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.site-footer-simple {
  text-align: center;
  padding: 2rem 0;
}

.site-footer-simple p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.site-footer-simple a {
  color: var(--color-primary-light);
}

/* ---- Register (simple) ---- */
.register-simple {
  padding: 2rem 0 4rem;
}

.register-simple .container {
  max-width: 520px;
}

.register-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  margin-top: 1rem;
}

.selected-program-simple {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.register-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.register-card h1 {
  font-size: 1.35rem;
  margin-bottom: 0.25rem;
}

.program-price {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.flow-steps {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.flow-step {
  flex: 1;
  min-width: 90px;
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-dim);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.flow-step i {
  display: block;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.flow-step.active {
  background: rgba(6, 187, 204, 0.12);
  color: var(--color-primary-dark);
  font-weight: 600;
}

.pay-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 1.25rem;
}

.pay-note i {
  color: var(--color-primary);
  margin-right: 0.25rem;
}

/* ---- Join page ---- */
.join-page {
  background: var(--color-bg-elevated);
}

.join-main {
  padding: 2rem 0 4rem;
}

.join-main .container {
  max-width: 520px;
}

.join-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.join-success-icon {
  margin-bottom: 1rem;
}

.join-card h1 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.join-lead {
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.join-ref {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-bottom: 1.5rem;
}

.whatsapp-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1rem;
  text-align: left;
}

.whatsapp-box-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.whatsapp-box-header > i {
  font-size: 2.5rem;
  color: #25d366;
}

.whatsapp-box-header h2 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.whatsapp-box-header p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.btn-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.9rem 1.5rem;
  background: #25d366;
  color: #fff;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  transition: background var(--transition);
}

.btn-whatsapp:hover {
  background: #1da851;
}

.whatsapp-box-secondary {
  text-align: center;
}

.whatsapp-box-secondary h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.whatsapp-box-secondary p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.back-home {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.back-home:hover {
  color: var(--color-primary);
}

/* ============================================
   Card Buttons Row (View Description + Enroll)
   ============================================ */

.card-btns {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.view-desc-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.6rem 0.75rem;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.view-desc-btn:hover {
  background: var(--color-bg-elevated);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.program-card .enroll-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 0.75rem;
  background: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}

.program-card .enroll-btn:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
}

/* ============================================
   Admin Nav Link
   ============================================ */

.nav-admin {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.nav-admin:hover { color: var(--color-primary); }

.nav-admin i { font-size: 0.8rem; }

/* ============================================
   Program Description Modal
   ============================================ */

.desc-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 15, 40, 0.6);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.desc-modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.desc-modal-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 24px 60px rgba(10, 15, 40, 0.2);
  position: relative;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  outline: none;
}

.desc-modal-overlay.open .desc-modal-box {
  transform: scale(1) translateY(0);
}

/* Close button */
.desc-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 1rem;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--transition);
  z-index: 1;
}

.desc-modal-close:hover {
  background: var(--color-border);
  color: var(--color-text);
}

/* Modal header */
.desc-modal-header {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.desc-modal-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  box-shadow: 0 6px 18px var(--color-accent-glow);
}

.desc-modal-meta { flex: 1; }

.desc-modal-cat {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.desc-modal-meta h2 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  margin-bottom: 0.35rem;
}

.desc-modal-price {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
}

/* Modal body */
.desc-modal-body {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.desc-modal-body p {
  margin-bottom: 0.5rem;
}

.desc-modal-body br {
  display: block;
  margin-bottom: 0.35rem;
}

.desc-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.desc-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.93rem;
  color: var(--color-text-muted);
}

.desc-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  margin-top: 0.5em;
  flex-shrink: 0;
}

/* Modal footer */
.desc-modal-footer {
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
}

.desc-modal-enroll-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 14px var(--color-accent-glow);
}

.desc-modal-enroll-btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--color-accent-glow);
}

@media (max-width: 480px) {
  .desc-modal-box { padding: 1.25rem; }
  .desc-modal-header { flex-direction: column; align-items: flex-start; }
  .card-btns { flex-direction: column; }
  .view-desc-btn, .program-card .enroll-btn { flex: none; width: 100%; }
}

/* ============================================
   Payment Processing Spinner Overlay
   ============================================ */

.payment-spinner-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 187, 204, 0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.payment-spinner-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.payment-spinner-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  background: #ffffff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem 3rem;
  box-shadow: 0 20px 60px rgba(6, 187, 204, 0.18), 0 4px 20px rgba(24, 29, 56, 0.08);
  transform: scale(0.9);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  max-width: 320px;
  width: 90%;
}

.payment-spinner-overlay.active .payment-spinner-box {
  transform: scale(1);
}

/* Animated ring spinner */
.payment-spinner-ring {
  position: relative;
  width: 64px;
  height: 64px;
}

.payment-spinner-ring div {
  box-sizing: border-box;
  display: block;
  position: absolute;
  width: 56px;
  height: 56px;
  margin: 4px;
  border: 5px solid transparent;
  border-radius: 50%;
  animation: spinner-ring 1.1s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.payment-spinner-ring div:nth-child(1) {
  border-top-color: var(--color-primary);
  animation-delay: -0.45s;
}
.payment-spinner-ring div:nth-child(2) {
  border-top-color: var(--color-primary-light);
  animation-delay: -0.3s;
}
.payment-spinner-ring div:nth-child(3) {
  border-top-color: var(--color-primary-dark);
  animation-delay: -0.15s;
}
.payment-spinner-ring div:nth-child(4) {
  border-top-color: var(--color-primary);
}

@keyframes spinner-ring {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.payment-spinner-text {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
  margin: 0;
}

.payment-spinner-subtext {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 0;
}