/* ═══════════════════════════════════════════
   home.css — أنماط الصفحة الرئيسية (Hub)
   دفتر البرمجة — تصميم احترافي
═══════════════════════════════════════════ */

/* ═══════════════ NAVBAR ═══════════════ */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 254, 247, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 0;
  transition: background 0.3s ease, border-color 0.3s ease;
}
body.dark .top-nav { background: rgba(15, 23, 42, 0.85); }

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Aref Ruqaa', serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink-blue);
  text-decoration: none;
}
.brand-logo .logo-icon {
  font-size: 1.5rem;
  animation: bounce 2.5s ease-in-out infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}

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

#themeToggle {
  background: var(--card);
  border: 1px solid var(--border);
  width: 44px; height: 44px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
#themeToggle:hover { transform: scale(1.08) rotate(15deg); border-color: var(--ink-purple); }

/* ═══════════════ HAMBURGER MENU ═══════════════ */
.menu-toggle {
  background: var(--card);
  border: 1px solid var(--border);
  width: 44px; height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all 0.25s ease;
}
.menu-toggle:hover { border-color: var(--ink-purple); }
.menu-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  padding: 8px;
  min-width: 210px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 60;
}
.nav-menu.show { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-menu-item {
  display: flex;
  align-items: center;
  gap: 11px;
  background: transparent;
  border: none;
  padding: 11px 14px;
  border-radius: 10px;
  font-family: 'Cairo', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: right;
  width: 100%;
  transition: background 0.2s ease;
}
.nav-menu-item:hover { background: var(--bg); }
.nav-menu-item .mi-icon { font-size: 1.1rem; }

/* ═══════════════ LAYOUT ═══════════════ */
.page-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

/* ═══════════════ HERO SECTION ═══════════════ */
.hero {
  position: relative;
  padding: 56px 40px 50px;
  margin-bottom: 32px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(30,58,138,0.04), rgba(124,58,237,0.06), rgba(220,38,38,0.04));
  border: 1px solid var(--border);
  overflow: hidden;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
body.dark .hero {
  background: linear-gradient(135deg, rgba(96,165,250,0.08), rgba(167,139,250,0.12), rgba(248,113,113,0.06));
}

/* خلفية نقاط متحركة خفيفة */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(124,58,237,0.10) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(30,58,138,0.10) 0%, transparent 40%),
    radial-gradient(circle at 50% 90%, rgba(220,38,38,0.06) 0%, transparent 30%);
  animation: bgShift 15s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes bgShift {
  from { transform: scale(1) rotate(0deg); }
  to   { transform: scale(1.1) rotate(8deg); }
}

.hero-content { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  border: 2px solid var(--ink-orange);
  color: var(--ink-orange);
  padding: 6px 18px;
  border-radius: 999px;
  font-family: 'Caveat', cursive;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 18px;
  box-shadow: 0 4px 16px rgba(234,88,12,0.15);
}

.hero h1 {
  font-family: 'Aref Ruqaa', serif;
  font-size: clamp(2rem, 5.5vw, 3.4rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 14px;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--ink-blue), var(--ink-purple), var(--ink-red));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration-color: var(--ink-red);
}

/* Typewriter */
.hero-typewriter {
  font-family: 'Fira Code', monospace;
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--ink-purple);
  min-height: 32px;
  margin-bottom: 24px;
  direction: ltr;
  font-weight: 600;
}
.hero-typewriter::after {
  content: '|';
  margin-right: 2px;
  color: var(--ink-red);
  animation: blink 0.7s infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-tagline {
  font-family: 'Caveat', cursive;
  font-size: 1.3rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  max-width: 600px;
  margin-inline: auto;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 12px;
  font-family: 'Cairo', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s ease;
  border: 2px solid transparent;
}
.cta-btn.primary {
  background: linear-gradient(135deg, var(--ink-blue), var(--ink-purple));
  color: white;
  box-shadow: 0 8px 24px rgba(30,58,138,0.3);
}
.cta-btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(124,58,237,0.4);
}
.cta-btn.outline {
  background: var(--card);
  color: var(--ink-blue);
  border-color: var(--ink-blue);
}
.cta-btn.outline:hover {
  background: var(--ink-blue);
  color: white;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 2px dashed var(--border);
}
.hero-stat { text-align: center; }
.hero-stat-num {
  font-family: 'Tajawal', sans-serif;
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--ink-blue), var(--ink-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.hero-stat-label {
  font-family: 'Caveat', cursive;
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ═══════════════ SEARCH BAR ═══════════════ */
.search-section {
  margin-bottom: 28px;
}
.search-wrap {
  position: relative;
  max-width: 500px;
  margin: 0 auto;
}
.search-icon {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: var(--text-muted);
  pointer-events: none;
}
.search-input {
  width: 100%;
  padding: 14px 50px 14px 18px;
  border: 2px solid var(--border);
  border-radius: 14px;
  font-family: 'Cairo', sans-serif;
  font-size: 1rem;
  background: var(--card);
  color: var(--text);
  outline: none;
  direction: rtl;
  transition: all 0.25s ease;
  box-shadow: var(--shadow);
}
.search-input:focus {
  border-color: var(--ink-purple);
  box-shadow: 0 0 0 4px rgba(124,58,237,0.15);
}
.search-input::placeholder { color: var(--text-muted); }

/* ═══════════════ SECTION HEADER ═══════════════ */
.section-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.section-heading h2 {
  font-family: 'Aref Ruqaa', serif;
  font-size: 1.5rem;
  color: var(--ink-blue);
  font-weight: 700;
}
.section-heading .line {
  flex: 1;
  height: 2px;
  background: linear-gradient(to left, transparent, var(--border));
}

/* ═══════════════ COURSES GRID ═══════════════ */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
  margin-bottom: 40px;
}

.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 1.1rem;
  grid-column: 1 / -1;
}
.no-results .nr-icon { font-size: 3rem; display: block; margin-bottom: 10px; }

/* ═══════════════ COURSE CARD ═══════════════ */
.course-card {
  background: var(--card);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  display: block;
}

.course-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--card-color, var(--ink-blue)) 0%, transparent 60%);
  opacity: 0.04;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.course-card:not(.coming-soon):hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12), 0 0 0 2px var(--card-color, var(--ink-blue));
}
.course-card:not(.coming-soon):hover::before { opacity: 0.10; }

/* شريط ملوّن في الأعلى */
.course-card-top {
  height: 6px;
  background: linear-gradient(90deg, var(--card-color, var(--ink-blue)), rgba(255,255,255,0.3));
}

.course-card-body {
  padding: 18px 18px 16px;
  position: relative;
}

/* badge عدد الدروس */
.course-lessons-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: 'Tajawal', sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  color: white;
  background: var(--card-color, var(--ink-blue));
  padding: 3px 9px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 2;
}

.course-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  font-size: 1.9rem;
  background: linear-gradient(135deg, var(--card-color, var(--ink-blue))22, var(--card-color, var(--ink-blue))08);
  border: 1px solid var(--card-color, var(--ink-blue))33;
  transition: transform 0.3s ease;
}
.course-card:hover .course-icon-wrap {
  transform: scale(1.08) rotate(-5deg);
}

/* اسم المسار */
.course-name {
  font-family: 'Aref Ruqaa', serif;
  font-size: 1.15rem;
  color: var(--text);
  font-weight: 700;
  margin-bottom: 4px;
  line-height: 1.4;
}

.course-name-en {
  font-family: 'Caveat', cursive;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: block;
}

.course-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* شريط التقدم */
.course-progress-wrap {
  margin-bottom: 12px;
}

.course-progress-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 7px;
  font-size: 0.78rem;
}

.course-progress-label {
  color: var(--text-muted);
  font-weight: 600;
}

.course-progress-pct {
  font-family: 'Tajawal', sans-serif;
  color: var(--card-color, var(--ink-blue));
  font-size: 0.9rem;
  font-weight: 800;
}

.course-progress-wrap .progress-bar {
  height: 7px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.course-progress-wrap .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--card-color, var(--ink-blue)), var(--ink-purple));
  border-radius: 999px;
  transition: width 0.8s cubic-bezier(.4,0,.2,1);
  position: relative;
}
.course-progress-wrap .progress-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 2s infinite;
}
@keyframes shimmer {
  from { transform: translateX(-100%); }
  to   { transform: translateX(100%); }
}

/* زر الدخول */
.course-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 10px;
  background: var(--card-color, var(--ink-blue));
  color: white;
  border: none;
  border-radius: 12px;
  font-family: 'Cairo', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: all 0.25s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.course-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.18);
  filter: brightness(1.1);
}

/* ═══════════════ COMING SOON CARD ═══════════════ */
.course-card.coming-soon {
  opacity: 0.65;
  cursor: default;
  filter: saturate(0.7);
}
.course-card.coming-soon .course-icon-wrap { filter: grayscale(0.4); }

.coming-soon-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--border);
  color: var(--text-muted);
  border: 1.5px dashed var(--text-muted);
  padding: 10px;
  border-radius: 12px;
  font-family: 'Cairo', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  width: 100%;
}

/* ═══════════════ FEATURED CARD ═══════════════ */
.course-card.featured {
  border: 2px solid var(--card-color, var(--ink-blue));
  box-shadow: 0 10px 30px rgba(30,58,138,0.15);
}
.course-card.featured .course-card-top { height: 8px; }
/* دفع المحتوى للأسفل حتى لا تتداخل شارة "متاح الآن" مع الأيقونة */
.course-card.featured .course-card-body { padding-top: 44px; }

.featured-label {
  position: absolute;
  top: 14px;
  right: 14px;
  background: linear-gradient(135deg, var(--ink-green), #16a34a);
  color: white;
  padding: 5px 14px;
  border-radius: 999px;
  font-family: 'Cairo', sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  z-index: 2;
  box-shadow: 0 4px 12px rgba(21,128,61,0.3);
  animation: pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 4px 12px rgba(21,128,61,0.3); }
  50%      { box-shadow: 0 4px 20px rgba(21,128,61,0.6); }
}

/* ═══════════════ PROGRESS SUMMARY (in footer) ═══════════════ */
.progress-summary {
  background: linear-gradient(135deg, rgba(30,58,138,0.08), rgba(124,58,237,0.08));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px 24px;
  margin-bottom: 24px;
  text-align: center;
}
.ps-title {
  font-family: 'Aref Ruqaa', serif;
  color: var(--ink-blue);
  font-size: 1.2rem;
  margin-bottom: 10px;
}
.ps-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.ps-stat-num {
  font-family: 'Tajawal', sans-serif;
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--ink-blue), var(--ink-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.ps-stat-label {
  font-family: 'Caveat', cursive;
  font-size: 1rem;
  color: var(--text-muted);
}

/* ═══════════════ FOOTER (محسّن) ═══════════════ */
.home-footer {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 26px;
  margin-top: 20px;
}
.hf-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 30px;
  margin-bottom: 22px;
}
@media (max-width: 600px) { .hf-grid { grid-template-columns: 1fr; gap: 20px; } }

.hf-brand h3 {
  font-family: 'Aref Ruqaa', serif;
  font-size: 1.3rem;
  color: var(--ink-blue);
  margin-bottom: 8px;
}
.hf-brand p {
  font-family: 'Caveat', cursive;
  color: var(--text-muted);
  font-size: 1.15rem;
  line-height: 1.7;
}
.hf-links h4 {
  font-family: 'Aref Ruqaa', serif;
  color: var(--ink-purple);
  font-size: 1rem;
  margin-bottom: 10px;
}
.hf-links ul { list-style: none; padding: 0; }
.hf-links li { margin-bottom: 6px; }
.hf-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s ease;
}
.hf-links a:hover { color: var(--ink-purple); }

.hf-bottom {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.hf-bottom .made-with { color: var(--ink-red); }

/* ═══════════════ ABOUT MODAL ═══════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.modal-overlay.show { opacity: 1; visibility: visible; }

.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 34px 28px 28px;
  max-width: 380px;
  width: 100%;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: scale(0.92);
  transition: transform 0.25s ease;
}
.modal-overlay.show .modal { transform: scale(1); }

.modal-close {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  width: 32px; height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: all 0.2s ease;
}
.modal-close:hover { color: var(--ink-red); border-color: var(--ink-red); }

.modal-icon {
  width: 72px; height: 72px;
  margin: 0 auto 14px;
  display: block;
}
.modal h2 {
  font-family: 'Aref Ruqaa', serif;
  color: var(--ink-blue);
  font-size: 1.5rem;
  margin-bottom: 12px;
}
.modal p {
  font-family: 'Cairo', sans-serif;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.85;
  margin-bottom: 22px;
}
.modal-dev {
  background: linear-gradient(135deg, rgba(30,58,138,0.08), rgba(124,58,237,0.08));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  font-family: 'Cairo', sans-serif;
  color: var(--text);
  font-size: 0.95rem;
}
.modal-dev .dev-label { color: var(--text-muted); font-size: 0.82rem; display: block; margin-bottom: 4px; }
.modal-dev .dev-name {
  font-family: 'Tajawal', sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  background: linear-gradient(135deg, var(--ink-blue), var(--ink-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  direction: ltr;
}
.modal-version {
  margin-top: 14px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: 'Fira Code', monospace;
}

/* ═══════════════ INSTALL BANNER ═══════════════ */
.install-banner {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(200%);
  width: calc(100% - 32px);
  max-width: 440px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 150;
  transition: transform 0.45s cubic-bezier(.4,0,.2,1);
}
.install-banner.show { transform: translateX(-50%) translateY(0); }
.ib-icon {
  width: 42px; height: 42px;
  flex-shrink: 0;
}
.ib-text { flex: 1; display: flex; flex-direction: column; gap: 3px; }
.ib-text strong { font-family: 'Cairo', sans-serif; color: var(--text); font-size: 0.98rem; }
.ib-text span { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }
.ib-actions { display: flex; flex-direction: column; gap: 6px; flex-shrink: 0; }
#ibInstall {
  background: linear-gradient(135deg, var(--ink-blue), var(--ink-purple));
  color: #fff;
  border: none;
  padding: 9px 18px;
  border-radius: 9px;
  font-family: 'Cairo', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(30,58,138,0.25);
}
#ibDismiss {
  background: transparent;
  color: var(--text-muted);
  border: none;
  padding: 4px;
  font-family: 'Cairo', sans-serif;
  font-size: 0.78rem;
  cursor: pointer;
}
#ibDismiss:hover { color: var(--text); }
@media (max-width: 430px) {
  .ib-actions { flex-direction: row; align-items: center; }
}

/* ═══════════════ RESPONSIVE ═══════════════ */
@media (max-width: 700px) {
  .hero { padding: 40px 24px 36px; }
  .hero-stats { gap: 24px; }
  .hero-stat-num { font-size: 1.8rem; }
  .courses-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .cta-btn { justify-content: center; }
}

@media (max-width: 480px) {
  .page-wrap { padding: 14px 12px 30px; }
  .hero { padding: 32px 18px 28px; }
  .nav-inner { padding: 10px 14px; }
  .brand-logo { font-size: 1rem; }
  .courses-grid { grid-template-columns: 1fr; }
}