/* ===== InstaUp APK - Main Stylesheet ===== */

:root {
  --primary: #D91A5C;
  --primary-dark: #b01449;
  --primary-light: #f03878;
  --primary-glow: rgba(217,26,92,0.25);
  --accent: #ff6b9d;
  --bg-dark: #f8f9fc;
  --bg-card: #ffffff;
  --bg-card2: #f1f3f9;
  --text: #1a1a24;
  --text-muted: #5a5a72;
  --border: rgba(0,0,0,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0,0,0,0.06);
  --shadow-pink: 0 8px 32px rgba(217,26,92,0.3);
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ===== UTILITY ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 52px 0; }
.section-sm { padding: 36px 0; }
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.fw-bold { font-weight: 700; }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(217,26,92,0.15); border: 1px solid var(--border);
  color: var(--accent); font-size: 0.78rem; font-weight: 600;
  padding: 5px 14px; border-radius: 50px;
  backdrop-filter: blur(8px);
}

.section-label {
  display: inline-block; background: linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  font-size: 0.85rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.2;
  margin-bottom: 16px;
}

.section-title span { color: var(--primary); }

.section-desc {
  color: var(--text-muted); font-size: 1.05rem; max-width: 600px; margin: 0 auto 48px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 50px; font-weight: 700;
  font-size: 0.95rem; cursor: pointer; border: none;
  transition: var(--transition); text-align: center; white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; box-shadow: var(--shadow-pink);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(217,26,92,0.5);
}

.btn-outline {
  background: transparent; color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary); color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(0,0,0,0.04); color: var(--text);
  border: 1px solid rgba(0,0,0,0.05);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(217,26,92,0.15); color: var(--accent); }

.btn-lg { padding: 18px 36px; font-size: 1.05rem; }
.btn-sm { padding: 10px 20px; font-size: 0.85rem; }

/* ===== CARD ===== */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: var(--transition); position: relative; overflow: hidden;
}
.card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-pink); }
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: var(--transition);
}
.card:hover::before { opacity: 1; }

/* ===== HEADER / NAV ===== */
.header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.85); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px; gap: 20px;
}

.nav-logo {
  display: flex; align-items: center; gap: 12px;
  font-weight: 800; font-size: 1.2rem;
}
.nav-logo img { width: 42px; height: 42px; border-radius: 12px; }
.nav-logo span { color: var(--primary); }

.nav-links {
  display: flex; align-items: center; gap: 4px;
}
.nav-links a {
  padding: 8px 16px; border-radius: 8px; font-size: 0.9rem;
  font-weight: 500; color: var(--text-muted); transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: rgba(217,26,92,0.12); }

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

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 8px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px; transition: var(--transition);
}

.mobile-menu {
  display: none; position: absolute; top: 100%; left: 0; right: 0;
  background: rgba(255,255,255,0.97); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border); padding: 20px;
  flex-direction: column; gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 12px 16px; border-radius: 10px; font-weight: 500;
  color: var(--text-muted); transition: var(--transition);
}
.mobile-menu a:hover { background: rgba(217,26,92,0.12); color: var(--primary); }

/* ===== HERO ===== */
.hero {
  position: relative; overflow: hidden;
  min-height: calc(100vh - 70px);
  min-height: calc(100dvh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 50px 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(217,26,92,0.12) 0%, transparent 70%);
}

.hero-centered {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.2rem); font-weight: 900;
  line-height: 1.15; margin-bottom: 20px;
  text-align: center;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-title .hero-title-dark { color: #000; -webkit-text-fill-color: #000; }

.hero-logo-box {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

.hero-center-logo {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  box-shadow: 0 12px 36px rgba(217,26,92,0.3);
  display: block;
  transition: var(--transition);
}
.hero-center-logo:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 44px rgba(217,26,92,0.45);
}

.hero-badge-wrap .badge {
  font-size: 0.82rem;
  padding: 5px 16px;
}

.hero-desc {
  color: var(--text-muted); font-size: 1.1rem; margin: 0 auto 28px;
  max-width: 620px; text-align: center; line-height: 1.6;
}

.hero-buttons {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 16px; margin-bottom: 32px;
}

.hero-stats {
  display: flex; gap: 36px; flex-wrap: wrap; justify-content: center;
}
.stat-item { text-align: center; }
.stat-num { font-size: 1.6rem; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; }

/* ===== FEATURES ===== */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card { text-align: center; }
.feature-icon {
  width: 64px; height: 64px; border-radius: 18px;
  background: linear-gradient(135deg, rgba(217,26,92,0.2), rgba(240,56,120,0.1));
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; margin: 0 auto 16px;
  transition: var(--transition);
}
.feature-card:hover .feature-icon { background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-color: transparent; }
.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; }

/* ===== APK INFO TABLE ===== */
.info-table {
  width: 100%; border-collapse: collapse;
  background: var(--bg-card); border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border);
}
.info-table tr { border-bottom: 1px solid var(--border); transition: var(--transition); }
.info-table tr:last-child { border-bottom: none; }
.info-table tr:hover { background: rgba(217,26,92,0.05); }
.info-table td { padding: 16px 24px; font-size: 0.95rem; }
.info-table td:first-child { color: var(--text-muted); font-weight: 600; width: 45%; }
.info-table td:last-child { color: var(--text); font-weight: 500; }

/* ===== INSTALL STEPS ===== */
.steps-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px; counter-reset: step;
}
.step-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; position: relative;
  counter-increment: step;
}
.step-card::before {
  content: counter(step);
  position: absolute; top: -14px; left: 24px;
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 800; color: #fff;
  box-shadow: 0 4px 16px rgba(217,26,92,0.4);
}
.step-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.step-card p { color: var(--text-muted); font-size: 0.88rem; }

/* ===== FAQ ===== */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); overflow: hidden;
}
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; background: none; border: none; color: var(--text);
  font-size: 1rem; font-weight: 600; cursor: pointer; text-align: left;
  gap: 12px; transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon { color: var(--primary); font-size: 1.2rem; flex-shrink: 0; transition: var(--transition); }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease;
  padding: 0 24px; color: var(--text-muted); font-size: 0.95rem;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 20px; }

/* ===== RATING ===== */
.stars { color: #fbbf24; font-size: 1.2rem; letter-spacing: 2px; }
.rating-box { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.rating-num { font-size: 3rem; font-weight: 900; color: var(--primary); }

/* ===== REVIEWS ===== */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.review-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.reviewer-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1rem; color: #fff; flex-shrink: 0;
}
.reviewer-name { font-weight: 700; font-size: 0.95rem; }
.reviewer-date { font-size: 0.78rem; color: var(--text-muted); }
.review-card p { color: var(--text-muted); font-size: 0.9rem; }

/* ===== INTERNAL LINKS ===== */
.ilinks-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.ilink-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px 20px;
  display: flex; align-items: center; gap: 14px;
  transition: var(--transition); cursor: pointer;
}
.ilink-card:hover { border-color: var(--primary); background: rgba(217,26,92,0.07); transform: translateX(4px); }
.ilink-icon { font-size: 1.6rem; flex-shrink: 0; }
.ilink-title { font-weight: 700; font-size: 0.95rem; margin-bottom: 2px; }
.ilink-desc { color: var(--text-muted); font-size: 0.82rem; }

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-card); border-top: 1px solid var(--border);
  padding: 60px 0 24px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 48px;
}
.footer-brand img { width: 48px; height: 48px; border-radius: 14px; margin-bottom: 16px; }
.footer-brand h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 10px; }
.footer-brand p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.7; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.social-btn {
  width: 38px; height: 38px; border-radius: 10px;
  background: rgba(217,26,92,0.12); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; transition: var(--transition); cursor: pointer;
}
.social-btn:hover { background: var(--primary); border-color: var(--primary); }
.footer-col h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { color: var(--text-muted); font-size: 0.88rem; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { color: var(--text-muted); font-size: 0.85rem; }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: var(--text-muted); font-size: 0.82rem; transition: var(--transition); }
.footer-bottom-links a:hover { color: var(--primary); }

/* ===== BREADCRUMB ===== */
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.85rem; color: var(--text-muted);
  padding: 16px 0; flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); transition: var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--primary); font-weight: 600; }

/* ===== VERSION TABLE ===== */
.version-table { width: 100%; border-collapse: collapse; }
.version-table th {
  background: rgba(217,26,92,0.08); padding: 14px 20px;
  font-size: 0.85rem; font-weight: 700; text-align: left; color: var(--primary);
}
.version-table td { padding: 14px 20px; font-size: 0.9rem; border-bottom: 1px solid var(--border); }
.version-table tr:hover td { background: rgba(217,26,92,0.04); }
.version-badge {
  display: inline-block; background: rgba(217,26,92,0.15);
  color: var(--accent); font-size: 0.78rem; font-weight: 700;
  padding: 3px 10px; border-radius: 20px;
}
.latest-badge {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}

/* ===== SAFE DOWNLOAD NOTICE ===== */
.safe-notice {
  background: rgba(34,197,94,0.08); border: 1px solid rgba(34,197,94,0.25);
  border-radius: var(--radius-sm); padding: 16px 20px;
  display: flex; align-items: center; gap: 12px;
  color: #4ade80; font-size: 0.9rem; font-weight: 600;
}

/* ===== PAGE HERO (inner pages) ===== */
.page-hero {
  padding: 60px 0 50px;
  background: radial-gradient(ellipse 80% 80% at 50% 0%, rgba(217,26,92,0.12) 0%, transparent 70%);
  text-align: center;
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; margin-bottom: 14px; }
.page-hero p { color: var(--text-muted); max-width: 580px; margin: 0 auto; }

/* ===== SEARCH BAR ===== */
.search-bar {
  position: relative; max-width: 420px; margin: 0 auto 36px;
}
.search-bar input {
  width: 100%; padding: 14px 20px 14px 48px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 50px; color: var(--text); font-family: inherit; font-size: 0.95rem;
  outline: none; transition: var(--transition);
}
.search-bar input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.search-bar .search-icon {
  position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: 1rem;
}

/* ===== COUNTER ANIMATION ===== */
@keyframes countUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.counter-animate { animation: countUp 0.8s ease forwards; }

/* ===== FLOATING DL BUTTON ===== */
.floating-dl {
  display: none; position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  z-index: 999; box-shadow: 0 8px 30px rgba(217,26,92,0.5);
  border-radius: 50px; white-space: nowrap;
}

/* ===== PROGRESS BAR ===== */
.progress-bar { background: rgba(0,0,0,0.08); border-radius: 50px; height: 6px; overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 50px; transition: width 1.2s ease; }

/* ===== VIRUS SCAN ===== */
.scan-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--bg-card2);
  border-bottom: 1px solid var(--border); font-size: 0.9rem;
}
.scan-pass { color: #4ade80; font-weight: 700; font-size: 0.82rem; }

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes shimmer { 0%{background-position:-200% 0} 100%{background-position:200% 0} }
.fade-in-up { animation: fadeInUp 0.7s ease forwards; }

/* ===== PAGE CONTENT ===== */
.prose h2 { font-size: 1.4rem; font-weight: 700; margin: 32px 0 12px; color: var(--text); }
.prose h3 { font-size: 1.1rem; font-weight: 700; margin: 24px 0 8px; color: var(--primary); }
.prose p { color: var(--text-muted); margin-bottom: 14px; line-height: 1.8; }
.prose ul { padding-left: 20px; margin-bottom: 14px; }
.prose ul li { color: var(--text-muted); margin-bottom: 6px; list-style: disc; }
.prose a { color: var(--primary); }
.prose a:hover { text-decoration: underline; }

/* ===== CONTACT FORM ===== */
.contact-form { max-width: 640px; margin: 0 auto; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 8px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 14px 18px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); font-family: inherit; font-size: 0.95rem;
  outline: none; transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow);
}
.form-group textarea { resize: vertical; min-height: 130px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav { height: auto; flex-wrap: wrap; align-items: center; padding-top: 8px; padding-bottom: 0; row-gap: 0; }
  .nav-logo { font-size: 1.15rem; height: 52px; }
  .nav-logo img { width: 36px; height: 36px; border-radius: 10px; }
  .nav-cta, .hamburger, .mobile-menu, .mobile-menu.open { display: none !important; }
  .nav-links {
    display: flex; width: 100%; order: 3; justify-content: space-between; align-items: center;
    gap: 2px; border-top: 1px solid var(--border); margin-top: 6px; padding: 4px 0 8px; overflow-x: auto;
  }
  .nav-links a { flex: 1; text-align: center; padding: 8px 4px; font-size: 0.8rem; white-space: nowrap; }
  .hero {
    min-height: calc(100vh - 110px);
    min-height: calc(100dvh - 110px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 0;
    box-sizing: border-box;
  }
  .hero-centered { width: 100%; padding: 0 16px; }
  .hero-title { font-size: clamp(1.8rem, 5.5vw, 2.2rem); line-height: 1.2; margin-bottom: 18px; }
  .hero-center-logo { width: 78px; height: 78px; border-radius: 20px; box-shadow: 0 10px 30px rgba(217,26,92,0.28); }
  .hero-logo-box { margin-bottom: 18px; gap: 10px; }
  .hero-badge-wrap .badge { font-size: 0.8rem; padding: 5px 14px; }
  .hero-desc { font-size: 0.98rem; line-height: 1.6; margin: 0 auto 24px; max-width: 92%; }
  .hero-buttons { gap: 14px; margin-bottom: 26px; justify-content: center; width: 100%; }
  .hero-buttons .btn { padding: 14px 24px; font-size: 0.94rem; }
  .hero-stats { gap: 28px; }
  .stat-num { font-size: 1.45rem; }
  .stat-label { font-size: 0.78rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .floating-dl { display: flex; }
  .section { padding: 40px 0; }
}

@media (max-width: 480px) {
  .hero {
    min-height: calc(100vh - 110px);
    min-height: calc(100dvh - 110px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
    box-sizing: border-box;
  }
  .hero-centered { padding: 0 16px; }
  .hero-title { font-size: 1.7rem; line-height: 1.22; margin-bottom: 16px; }
  .hero-center-logo { width: 74px; height: 74px; border-radius: 18px; box-shadow: 0 10px 28px rgba(217,26,92,0.3); }
  .hero-logo-box { margin-bottom: 16px; gap: 8px; }
  .hero-badge-wrap .badge { font-size: 0.78rem; padding: 4px 12px; }
  .hero-desc { font-size: 0.92rem; line-height: 1.55; margin: 0 auto 20px; max-width: 100%; }
  .hero-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 22px;
    width: 100%;
  }
  .hero-buttons .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
    padding: 13px 20px;
    font-size: 0.92rem;
  }
  .hero-stats { gap: 24px; }
  .stat-num { font-size: 1.35rem; }
  .stat-label { font-size: 0.74rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

.old-versions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-top: 10px;
    justify-items: center;
}
@media (min-width: 768px) {
    .old-versions-grid {
        grid-template-columns: 1fr 1fr;
    }
}