/* --- Base --- */
:root {
  --bg: #0a0e16;
  --bg-card: #141922;
  --bg-elevated: #1e2430;
  --border: #2d3748;
  --text: #f7fafc;
  --text-muted: #94a3b8;
  --accent: #ec4899;
  --accent-hover: #f472b6;
  --accent-dark: #be185d;
  --success: #10b981;
  --warning: #f59e0b;
  --info: #3b82f6;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0,0,0,.5);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.7);
  --glow: 0 0 20px rgba(236, 72, 153, 0.3);
}

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

html { 
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #0a0e16 0%, #141922 50%, #0f1419 100%);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 20%, rgba(236, 72, 153, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.container { 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section { 
  padding: 5rem 0;
  position: relative;
}

.section h2 { 
  margin: 0 0 0.75rem; 
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-lead { 
  color: var(--text-muted); 
  margin: 0 0 2rem;
  font-size: 1.1rem;
}

@media (max-width: 768px) {
  .section { padding: 3rem 0; }
  .section h2 { font-size: 2rem; }
}

/* --- Top Bar --- */
.top-bar {
  background: rgba(20, 25, 34, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(45, 55, 72, 0.5);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.top-bar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  font-size: 1.25rem;
  transition: all 0.3s ease;
}

.brand:hover {
  transform: translateY(-2px);
}

.brand-name span { 
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.brand-logo { display: block; }
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
}
.nav-links a:hover { color: var(--text); }
/* --- Mobile Menu --- */
.mobile-menu-btn {
  display: none;
  background: rgba(30, 36, 48, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(45, 55, 72, 0.5);
  color: var(--text);
  padding: 0.65rem 1rem;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1.25rem;
  transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
  background: rgba(236, 72, 153, 0.15);
  border-color: var(--accent);
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .mobile-menu-btn { display: block; }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    padding-top: 1rem;
    background: rgba(20, 25, 34, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 12px;
    padding: 1rem;
    margin-top: 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(45, 55, 72, 0.5);
  }
  .nav-links.is-open { 
    display: flex;
    animation: slideDown 0.3s ease-out;
  }
  .nav-links a {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
  }
  .nav-links a:hover {
    background: rgba(236, 72, 153, 0.1);
    color: var(--accent);
  }
}

/* --- Hero --- */
.hero {
  background: linear-gradient(135deg, rgba(30, 20, 60, 0.4) 0%, rgba(10, 14, 22, 0.8) 100%);
  padding: 8rem 24px 10rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-top: -1px;
}
.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: 5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, transparent 65%);
  border-radius: 50%;
  z-index: 0;
  animation: float 8s ease-in-out infinite;
  filter: blur(60px);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: 5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 65%);
  border-radius: 50%;
  z-index: 0;
  animation: float 10s ease-in-out infinite reverse;
  filter: blur(60px);
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.1); }
}
.hero-content { max-width: 720px; margin: 0 auto; position: relative; z-index: 1; }
.hero-text { text-align: center; }
.version-tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1rem;
  padding: 0.5rem 1rem;
  background: rgba(236, 72, 153, 0.1);
  border: 1px solid rgba(236, 72, 153, 0.3);
  border-radius: 999px;
  font-weight: 600;
  text-transform: uppercase;
  animation: fadeIn 0.6s ease-out 0.2s both;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.hero-content h1 { 
  margin: 0 0 1rem; 
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff 0%, var(--accent-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.8s ease-out;
}

.hero-content h1 span { 
  display: block; 
  font-size: 1.1rem; 
  font-weight: 500; 
  color: var(--text-muted); 
  margin-top: 0.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  -webkit-text-fill-color: var(--text-muted);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .hero-content h1 { font-size: 2.5rem; }
  .hero { padding: 5rem 20px 6rem; }
}
.hero-content p { color: var(--text-muted); margin: 0 0 1.5rem; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; margin-bottom: 1.5rem; }
.trust-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; }
.trust-badge {
  background: rgba(30, 36, 48, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(236, 72, 153, 0.2);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 600;
  transition: all 0.3s ease;
  animation: fadeIn 0.8s ease-out 0.4s both;
}

.trust-badge:hover {
  background: rgba(236, 72, 153, 0.15);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.2);
}
.nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; margin-bottom: 3rem; }
.nav a { color: var(--text-muted); text-decoration: none; font-size: 0.95rem; }
.nav a:hover { color: var(--text); }
.logo { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--text) !important; font-weight: 600; }
.logo img { display: block; }
.tagline { font-size: 1.2rem; color: var(--text-muted); margin: 0 0 0.5rem; }
.hero-desc { max-width: 560px; margin: 0 auto 1.5rem; color: var(--text-muted); }
.badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; margin-bottom: 1.5rem; }
.badge { background: var(--bg-elevated); border: 1px solid var(--border); padding: 0.25rem 0.75rem; border-radius: 999px; font-size: 0.85rem; }
.cta { display: inline-block; background: var(--accent); color: #fff; padding: 0.75rem 1.5rem; border-radius: 8px; text-decoration: none; font-weight: 600; transition: background .2s; }
.cta:hover { background: var(--accent-hover); }

/* --- Stats Bar --- */
.stats-bar { 
  background: rgba(20, 25, 34, 0.5);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(236, 72, 153, 0.1);
  border-bottom: 1px solid rgba(236, 72, 153, 0.1);
  padding: 3rem 0;
  position: relative;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}
.stats-bar .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2.5rem; }
.stat-item { 
  text-align: center; 
  color: var(--text-muted); 
  font-size: 0.95rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.stat-item::before {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transition: transform 0.4s ease;
}

.stat-item:hover { 
  transform: translateY(-8px);
  color: var(--text);
}

.stat-item:hover::before {
  transform: translateX(-50%) scaleX(1);
}

.stat-item strong { 
  display: block; 
  font-size: 2rem; 
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem; 
  font-weight: 800;
  letter-spacing: -0.02em;
}
.stats { background: var(--bg-card); border-bottom: 1px solid var(--border); padding: 1.5rem 0; }
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.stat { text-align: center; color: var(--text-muted); font-size: 0.9rem; }
.stat-num { display: block; font-size: 1.5rem; font-weight: 700; color: var(--accent); }

/* --- Section header / intro --- */
.section-header { 
  text-align: center; 
  margin-bottom: 4rem;
  animation: fadeInUp 0.8s ease-out;
}

.section-header h2 { 
  margin: 0 0 1rem; 
  font-size: 2.75rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  border-radius: 2px;
}

.section-header h2 span { 
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
}

.section-header p { 
  margin: 1.5rem 0 0; 
  color: var(--text-muted); 
  font-size: 1.15rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}
.intro-box { max-width: 720px; margin: 0 auto; }
.intro-box p { margin: 0 0 1rem; color: var(--text-muted); }

/* --- Download section --- */
.download-section .download-box {
  background: linear-gradient(135deg, rgba(20, 25, 34, 0.8) 0%, rgba(30, 36, 48, 0.6) 100%);
  backdrop-filter: blur(20px) saturate(180%);
  border: 2px solid rgba(236, 72, 153, 0.2);
  border-radius: 24px;
  padding: 3rem;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.download-section .download-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.download-section .download-box:hover {
  border-color: var(--accent);
  box-shadow: 0 30px 80px rgba(236, 72, 153, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 0 40px rgba(236, 72, 153, 0.2);
  transform: translateY(-8px);
}
.download-box h2 { 
  margin: 0 0 1rem; 
  position: relative; 
  z-index: 1;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.download-box > p { 
  color: var(--text-muted); 
  margin-bottom: 2rem; 
  position: relative; 
  z-index: 1;
  font-size: 1.05rem;
  line-height: 1.7;
}
.download-btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  margin: 0 0.5rem 0.5rem 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.download-btn.primary { 
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: #fff;
  box-shadow: 0 4px 12px rgba(196, 30, 58, 0.3);
}
.download-btn.primary:hover { 
  background: linear-gradient(135deg, var(--accent-hover) 0%, #c41e3a 100%);
  box-shadow: 0 8px 24px rgba(196, 30, 58, 0.4);
  transform: translateY(-2px);
}
.file-specs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-muted);
}
.file-specs strong { display: block; margin-bottom: 0.2rem; color: var(--text); font-weight: 600; }
.download .meta { color: var(--text-muted); font-size: 0.9rem; margin-top: 1rem; }
.download-buttons { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; margin-bottom: 1.5rem; }
.btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s;
}
.btn:hover::before {
  width: 300px;
  height: 300px;
}
.btn-primary { 
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(236, 72, 153, 0.4), 0 0 20px rgba(236, 72, 153, 0.2);
  position: relative;
  overflow: hidden;
  font-weight: 700;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn-primary:hover { 
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent) 100%);
  box-shadow: 0 12px 32px rgba(236, 72, 153, 0.5), 0 0 30px rgba(236, 72, 153, 0.3);
  transform: translateY(-3px);
}

.btn-primary:hover::after {
  width: 300px;
  height: 300px;
}
.btn-secondary { 
  background: rgba(30, 36, 48, 0.6);
  backdrop-filter: blur(10px);
  color: var(--text);
  border: 2px solid rgba(45, 55, 72, 0.5);
  font-weight: 600;
}

.btn-secondary:hover { 
  background: rgba(236, 72, 153, 0.15);
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(236, 72, 153, 0.2);
}

.btn-secondary:hover::before {
  width: 400px;
  height: 400px;
}
.password-box {
  background: rgba(63, 185, 80, 0.12);
  border: 1px solid var(--success);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  text-align: center;
}
.password-box strong { display: block; margin-bottom: 0.25rem; }
.password-box small { color: var(--text-muted); font-size: 0.85rem; }
.password {
  display: inline-block;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  user-select: all;
  margin: 0.25rem 0;
}
.download-list { margin-top: 2rem; }
.download-list h3 { font-size: 1.1rem; margin-bottom: 0.75rem; }
.download-list ul { margin: 0; padding-left: 1.25rem; }
.download-list a { color: var(--accent); }
.download-list a:hover { text-decoration: underline; }

/* --- Compatibility notice --- */
.compatibility-notice .compat-box { max-width: 800px; margin: 0 auto; }
.compatibility-notice .compat-box h3 { margin: 0 0 0.5rem; }
.compat p { max-width: 720px; color: var(--text-muted); }

/* --- About --- */
.about p { max-width: 720px; color: var(--text-muted); }

/* --- History (отдельный блок) --- */
.history { 
  background: linear-gradient(135deg, rgba(20, 25, 34, 0.5) 0%, rgba(10, 14, 22, 0.8) 100%);
  position: relative;
}

.history::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(236, 72, 153, 0.5), transparent);
}

.history-timeline {
  display: grid;
  gap: 2rem;
  max-width: 900px;
}

.history-block {
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.6) 0%, rgba(20, 25, 34, 0.4) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(45, 55, 72, 0.5);
  border-left: 5px solid var(--accent);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.history-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(236, 72, 153, 0.05), transparent);
  transition: left 0.6s ease;
}

.history-block:hover {
  transform: translateX(12px);
  box-shadow: 0 15px 40px rgba(236, 72, 153, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  border-color: var(--accent-hover);
}

.history-block:hover::before {
  left: 100%;
}

.history-block h3 { 
  margin: 0 0 1rem; 
  font-size: 1.35rem; 
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.history-block p { 
  margin: 0; 
  color: var(--text-muted); 
  font-size: 1rem; 
  line-height: 1.7;
}

/* --- Version Selector --- */
.version-selector-wrapper {
  margin: 2.5rem 0 3.5rem;
  display: flex;
  justify-content: center;
}

.version-selector {
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, rgba(20, 25, 34, 0.7) 0%, rgba(30, 36, 48, 0.5) 100%);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(45, 55, 72, 0.5);
  border-radius: 14px;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 380px;
  max-width: 100%;
  appearance: none;
  padding-right: 3rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='10' viewBox='0 0 14 10'%3E%3Cpath fill='%23ec4899' d='M7 8L0 0h14z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1.25rem center;
  background-size: 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.version-selector:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(236, 72, 153, 0.25);
  transform: translateY(-4px);
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.9) 0%, rgba(20, 25, 34, 0.6) 100%);
}

.version-selector:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(236, 72, 153, 0.2), 0 12px 32px rgba(236, 72, 153, 0.3);
}

.version-selector option {
  background: rgba(20, 25, 34, 0.98);
  color: var(--text);
  padding: 1rem;
  font-weight: 600;
}
/* Hide version blocks by default */
.version-block {
  display: none;
}
.version-block.active {
  display: block;
  animation: fadeIn 0.3s ease;
  margin-top: 2rem;
  margin-bottom: 2rem;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (max-width: 600px) {
  .version-selector {
    min-width: 100%;
  }
}
.versions-section { 
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.3) 0%, rgba(10, 14, 22, 0.6) 100%);
  position: relative;
}

.version-block {
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.7) 0%, rgba(20, 25, 34, 0.5) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(45, 55, 72, 0.5);
  border-left: 4px solid var(--accent);
  border-radius: 16px;
  padding: 2rem 2.5rem;
  margin-bottom: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.version-block:hover {
  transform: translateX(8px);
  box-shadow: 0 15px 40px rgba(236, 72, 153, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  border-color: var(--accent-hover);
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.8) 0%, rgba(20, 25, 34, 0.6) 100%);
}
.version-block-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.version-block-header h3 { 
  margin: 0; 
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.version-badge {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: #fff;
  font-size: 0.7rem;
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.3);
}
.version-badge.sony { background: linear-gradient(135deg, #0066b3 0%, #004580 100%); }
.version-block > p { 
  margin: 0 0 1rem; 
  color: var(--text-muted); 
  font-size: 1rem;
  line-height: 1.7;
}
.version-features {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.version-download {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.version-build { font-size: 0.85rem; color: var(--text-muted); }

/* --- Comparison table (версии Vegas) --- */
.comparison-versions-section .table-wrap { 
  overflow-x: auto; 
  margin: 0 auto;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.versions-compare-table {
  width: 100%;
  min-width: 800px;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.6) 0%, rgba(20, 25, 34, 0.4) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(45, 55, 72, 0.5);
  border-radius: 16px;
  overflow: hidden;
}

.versions-compare-table th,
.versions-compare-table td { 
  padding: 1rem; 
  border: 1px solid rgba(45, 55, 72, 0.3); 
  text-align: center;
}

.versions-compare-table th { 
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.2) 0%, rgba(236, 72, 153, 0.05) 100%);
  text-align: left;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.versions-compare-table td:first-child { 
  text-align: left; 
  font-weight: 600;
  color: var(--text);
}

.versions-compare-table tbody tr:nth-child(even) { 
  background: rgba(255, 255, 255, 0.02); 
}

.versions-compare-table tbody tr:hover { 
  background: rgba(236, 72, 153, 0.1);
  transition: background 0.3s ease;
}

/* --- Features grid --- */
.features-section .features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
}

.feature-card {
  background: linear-gradient(135deg, rgba(20, 25, 34, 0.7) 0%, rgba(30, 36, 48, 0.4) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(45, 55, 72, 0.5);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-hover), transparent);
  transition: top 0.5s ease;
}

.feature-card::after {
  content: '';
  position: absolute;
  inset: -1px;
  background: linear-gradient(135deg, var(--accent), var(--info), var(--accent-hover));
  border-radius: 20px;
  opacity: 0;
  z-index: -1;
  transition: opacity 0.5s ease;
}

.feature-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: transparent;
  box-shadow: 0 20px 50px rgba(236, 72, 153, 0.3), 0 0 0 1px rgba(236, 72, 153, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.9) 0%, rgba(20, 25, 34, 0.6) 100%);
}

.feature-card:hover::before {
  top: 0;
}

.feature-card:hover::after {
  opacity: 0.15;
}

.feature-icon { 
  font-size: 2.5rem; 
  margin-bottom: 1rem; 
  display: block; 
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  filter: drop-shadow(0 4px 8px rgba(236, 72, 153, 0.3));
}

.feature-card:hover .feature-icon { 
  transform: scale(1.3) rotate(10deg) translateY(-8px);
  filter: drop-shadow(0 8px 16px rgba(236, 72, 153, 0.5));
}

.feature-card h3 { 
  margin: 0 0 0.75rem; 
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.feature-card p { 
  margin: 0 0 1rem; 
  color: var(--text-muted); 
  font-size: 0.95rem;
  line-height: 1.6;
}

.feature-tag { 
  display: block; 
  margin-top: 0.75rem; 
  font-size: 0.8rem; 
  color: var(--accent); 
  opacity: 0.8;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* --- Steps grid (6 шагов в табах) --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.step-card {
  background: linear-gradient(135deg, rgba(20, 25, 34, 0.7) 0%, rgba(30, 36, 48, 0.4) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(45, 55, 72, 0.5);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.step-card::before {
  content: attr(data-step);
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.4);
}

.step-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(236, 72, 153, 0.2);
  border-color: rgba(236, 72, 153, 0.5);
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.9) 0%, rgba(20, 25, 34, 0.6) 100%);
}

.step-icon { 
  font-size: 2.25rem; 
  margin-bottom: 1rem; 
  display: block;
  transition: transform 0.4s ease;
  filter: drop-shadow(0 4px 8px rgba(236, 72, 153, 0.2));
}

.step-card:hover .step-icon {
  transform: scale(1.2) translateY(-4px);
}

.step-card h3 { 
  margin: 0 0 0.75rem; 
  font-size: 1.1rem; 
  font-weight: 700;
  letter-spacing: -0.01em;
}

.step-card p { 
  margin: 0; 
  color: var(--text-muted); 
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Cards --- */
.cards-grid { 
  display: grid; 
  gap: 1.5rem;
}

.cards-4 { 
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); 
}

.cards-6 { 
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
}

.card {
  background: linear-gradient(135deg, rgba(20, 25, 34, 0.7) 0%, rgba(30, 36, 48, 0.4) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(45, 55, 72, 0.5);
  border-radius: 18px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(236, 72, 153, 0.08), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transition: transform 0.4s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(236, 72, 153, 0.3);
  border-color: rgba(236, 72, 153, 0.4);
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.9) 0%, rgba(20, 25, 34, 0.6) 100%);
}

.card:hover::before {
  opacity: 1;
}

.card:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.card-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  filter: drop-shadow(0 4px 8px rgba(236, 72, 153, 0.2));
}

.card:hover .card-icon {
  transform: scale(1.2) rotate(-15deg) translateY(-8px);
  filter: drop-shadow(0 8px 16px rgba(236, 72, 153, 0.4));
}

.card h4 { 
  margin: 0 0 0.75rem; 
  font-size: 1.15rem; 
  font-weight: 700; 
  position: relative; 
  z-index: 1;
  letter-spacing: -0.01em;
}

.card p { 
  margin: 0; 
  color: var(--text-muted); 
  font-size: 0.95rem; 
  position: relative; 
  z-index: 1; 
  line-height: 1.6;
}

.review-card cite { 
  display: block; 
  margin-top: 0.75rem; 
  font-size: 0.9rem; 
  color: var(--accent); 
  position: relative; 
  z-index: 1;
  font-weight: 600;
  font-style: normal;
}

/* --- Tech --- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.tech-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(22, 27, 34, 0.4) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.tech-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(196, 30, 58, 0.12);
  background: linear-gradient(135deg, rgba(22, 27, 34, 0.8) 0%, rgba(22, 27, 34, 0.3) 100%);
}
.tech-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
  transition: transform 0.3s ease;
}
.tech-card:hover .tech-icon {
  transform: scale(1.2) rotate(10deg);
}
.tech-card h4 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}
.tech-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}
.compat-box {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(22, 27, 34, 0.4) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  max-width: 720px;
  transition: all 0.3s ease;
}
.compat-box:hover {
  border-color: rgba(196, 30, 58, 0.5);
  box-shadow: 0 8px 24px rgba(196, 30, 58, 0.08);
}
.compat-box p { margin: 0; color: var(--text-muted); line-height: 1.6; }

/* --- Licenses --- */
.license-notice {
  background: rgba(196, 30, 58, 0.1);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}
.licenses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.license-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.license-card.highlight { border-color: var(--accent); background: rgba(196, 30, 58, 0.06); }
.license-card h4 { margin: 0 0 0.75rem; font-size: 1rem; }
.license-card ul { margin: 0; padding-left: 1.1rem; font-size: 0.9rem; color: var(--text-muted); }

/* --- Sysreq --- */
.sysreq-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; align-items: start; }
.sysreq-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(22, 27, 34, 0.4) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}
.sysreq-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
  border-color: var(--accent);
}
.sysreq-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.sysreq-icon { font-size: 1.5rem; }
.sysreq-head h4 { margin: 0; font-size: 1.1rem; font-weight: 600; }
.sysreq-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem 1rem;
}
.sysreq-list dt {
  grid-column: 1;
  font-weight: 600;
  color: var(--text);
  margin: 0;
  min-width: 10ch;
}
.sysreq-list dd {
  grid-column: 2;
  margin: 0;
  color: var(--text-muted);
}
.sysreq-list dt, .sysreq-list dd { align-self: start; }
/* dl as grid: dt and dd in same row */
.sysreq-list { grid-template-columns: auto 1fr; }
.sysreq-list dt { white-space: nowrap; }
.sysreq-list dd { padding-left: 0; }

/* --- Screenshots (2 col, 16/10, lightbox) --- */
.screens-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}
.screen-card {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.screen-card:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(196, 30, 58, 0.12);
}
.screen-link {
  display: block;
  aspect-ratio: 16/10;
  overflow: hidden;
  transition: transform .3s ease;
}
.screen-link:hover { transform: scale(1.03); }
.screen-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.screen-card figcaption {
  padding: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  background: linear-gradient(to top, var(--bg-card), transparent);
  font-weight: 500;
}
@media (max-width: 600px) { .screens-grid { grid-template-columns: 1fr; } }

/* --- Tabs --- */
.tabs { 
  display: flex; 
  gap: 1rem; 
  margin-bottom: 2.5rem; 
  flex-wrap: wrap;
  justify-content: center;
}

.tab-btn {
  padding: 0.85rem 1.75rem;
  background: rgba(30, 36, 48, 0.5);
  backdrop-filter: blur(10px);
  border: 1.5px solid rgba(45, 55, 72, 0.5);
  border-radius: 12px;
  color: var(--text);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.tab-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: -1;
}

.tab-btn:hover { 
  border-color: var(--accent);
  background: rgba(236, 72, 153, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(236, 72, 153, 0.2);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 8px 24px rgba(236, 72, 153, 0.4), 0 0 20px rgba(236, 72, 153, 0.2);
  transform: translateY(-2px);
}

.tab-btn.active::before {
  opacity: 1;
}
.tab-pane { display: none; }
.tab-pane.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
.steps-list { margin: 0; padding-left: 1.5rem; max-width: 640px; }
.steps-list li { margin-bottom: 0.5rem; color: var(--text-muted); }
.steps-list code { background: var(--bg-elevated); padding: 0.15rem 0.4rem; border-radius: 4px; }

/* --- Compare table --- */
.table-wrap { overflow-x: auto; }
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, rgba(33, 38, 45, 0.5) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.compare-table th,
.compare-table td { padding: 0.75rem 1rem; border: 1px solid var(--border); text-align: left; }
.compare-table th { 
  background: linear-gradient(135deg, rgba(196, 30, 58, 0.2) 0%, rgba(196, 30, 58, 0.05) 100%);
  font-weight: 600;
  color: var(--accent);
}
.compare-table td:first-child { font-weight: 500; }
.compare-table tbody tr:nth-child(even) { background: rgba(255,255,255,.02); }
.compare-table tbody tr:hover { background: rgba(196, 30, 58, 0.08); }

/* --- Pros/cons --- */
.pros-cons-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.pros, .cons { 
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(22, 27, 34, 0.4) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: all 0.3s ease;
}
.pros { border-left: 4px solid var(--success); }
.cons { border-left: 4px solid var(--accent); }
.pros:hover, .cons:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
}
.pros h3, .cons h3 { margin: 0 0 1rem; font-size: 1.15rem; font-weight: 600; }
.pros h3 { color: var(--success); }
.cons h3 { color: var(--accent); }
.pros ul, .cons ul { margin: 0; padding-left: 1.5rem; color: var(--text-muted); line-height: 1.7; }
.pros li, .cons li { margin-bottom: 0.5rem; }
.pros li::marker { color: var(--success); }
.cons li::marker { color: var(--accent); }

/* --- FAQ --- */
.faq-list { 
  max-width: 1100px; 
  margin: 0 auto;
}

.faq-list.faq-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  max-width: 1200px;
}

@media (max-width: 900px) {
  .faq-list.faq-2col {
    grid-template-columns: 1fr;
  }
}

.faq-item {
  border: 0;
  border-bottom: 1px solid rgba(45, 55, 72, 0.3);
  background: transparent;
  border-radius: 0;
  padding: 0;
  margin-bottom: 0;
  overflow: visible;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-list.faq-2col .faq-item:last-child {
  border-bottom: none;
}

.faq-list:not(.faq-2col) .faq-item:last-child {
  border-bottom: none;
}

.faq-item summary {
  padding: 1.75rem;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
  color: var(--text);
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, rgba(20, 25, 34, 0.5) 0%, rgba(30, 36, 48, 0.3) 100%);
  backdrop-filter: blur(5px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  border: 1px solid rgba(45, 55, 72, 0.3);
}

.faq-item summary:hover {
  background: linear-gradient(135deg, rgba(30, 36, 48, 0.7) 0%, rgba(20, 25, 34, 0.5) 100%);
  border-color: rgba(236, 72, 153, 0.4);
  transform: translateX(8px);
  box-shadow: 0 8px 20px rgba(236, 72, 153, 0.15);
}

.faq-item summary::before {
  content: '▶';
  display: inline-block;
  margin-right: 1.25rem;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
}

.faq-item[open] summary::before {
  transform: rotate(90deg);
  color: var(--accent-hover);
}

.faq-item[open] summary {
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.15) 0%, rgba(30, 36, 48, 0.4) 100%);
  border-color: var(--accent);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  box-shadow: 0 4px 16px rgba(236, 72, 153, 0.2);
}

.faq-item p {
  margin: 0;
  padding: 1.5rem 2rem 2rem 4rem;
  color: var(--text-muted);
  font-size: 0.98rem;
  border-top: 1px solid rgba(45, 55, 72, 0.3);
  line-height: 1.8;
  animation: slideDown 0.4s ease-out;
  background: rgba(20, 25, 34, 0.3);
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
  border-left: 1px solid rgba(236, 72, 153, 0.2);
  border-right: 1px solid rgba(236, 72, 153, 0.2);
  border-bottom: 1px solid rgba(236, 72, 153, 0.2);
}
@keyframes slideDown {
  from {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
  }
  to {
    opacity: 1;
    max-height: 500px;
    overflow: visible;
  }
}
.faq-item::-webkit-details-marker { display: none; }

/* --- Contact --- */
.contact-form {
  display: grid;
  gap: 1.25rem;
  max-width: 520px;
  margin: 0 auto;
}

.contact-form.contact-form-centered {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
}

.contact-form.contact-form-centered button {
  justify-self: center;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  background: rgba(20, 25, 34, 0.6);
  backdrop-filter: blur(10px);
  border: 1.5px solid rgba(45, 55, 72, 0.5);
  border-radius: 12px;
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(236, 72, 153, 0.15), 0 8px 20px rgba(236, 72, 153, 0.2);
  background: rgba(30, 36, 48, 0.8);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder { 
  color: var(--text-muted);
  opacity: 0.7;
}

.contact-form button { 
  justify-self: start;
  margin-top: 0.5rem;
}

.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
  color: #fff;
  border-radius: 12px;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  z-index: 1000;
  font-weight: 600;
  box-shadow: 0 12px 32px rgba(16, 185, 129, 0.4), 0 0 20px rgba(16, 185, 129, 0.2);
  backdrop-filter: blur(10px);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* --- Footer --- */
.footer {
  background: linear-gradient(180deg, rgba(20, 25, 34, 0.8) 0%, rgba(10, 14, 22, 0.9) 100%);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(236, 72, 153, 0.2);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 3rem;
}

@media (max-width: 700px) { 
  .footer-content { 
    grid-template-columns: 1fr; 
    gap: 2rem;
  }
}

.footer-left { 
  max-width: 450px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  font-size: 1.25rem;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.footer-brand:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.footer-text { 
  font-size: 0.95rem; 
  color: var(--text-muted); 
  margin: 0; 
  line-height: 1.7;
}

.footer-links-grid { 
  display: flex; 
  flex-wrap: wrap; 
  gap: 3rem;
  justify-content: flex-end;
}

.footer-section h4 { 
  margin: 0 0 1rem; 
  font-size: 1rem; 
  font-weight: 700; 
  color: var(--text);
  letter-spacing: 0.02em;
}

.footer-section ul { 
  margin: 0; 
  padding: 0; 
  list-style: none;
}

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

.footer-section a { 
  color: var(--text-muted); 
  text-decoration: none; 
  font-size: 0.95rem;
  transition: all 0.3s ease;
  display: inline-block;
}

.footer-section a:hover { 
  color: var(--accent);
  transform: translateX(4px);
}

.footer-bottom { 
  padding-top: 2rem; 
  border-top: 1px solid rgba(45, 55, 72, 0.3); 
  text-align: center;
}

.footer-bottom p { 
  margin: 0; 
  font-size: 0.9rem; 
  color: var(--text-muted);
  opacity: 0.8;
}
.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; margin-bottom: 1rem; }
.footer-nav a { color: var(--text-muted); text-decoration: none; }
.footer-nav a:hover { color: var(--text); }
.footer-info { font-size: 0.9rem; color: var(--text-muted); max-width: 560px; margin: 0 auto 0.5rem; }
.copyright { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

/* --- Back to top --- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  box-shadow: 0 8px 24px rgba(236, 72, 153, 0.4), 0 0 20px rgba(236, 72, 153, 0.2);
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 99;
  backdrop-filter: blur(10px);
}

.back-to-top.visible { 
  opacity: 1; 
  visibility: visible;
}

.back-to-top:hover { 
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-dark) 100%);
  box-shadow: 0 12px 36px rgba(236, 72, 153, 0.6), 0 0 30px rgba(236, 72, 153, 0.3);
  transform: translateY(-6px) scale(1.1);
}

.back-to-top:active {
  transform: translateY(-2px) scale(1.05);
}

/* --- Lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 22, 0.95);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 2rem;
  animation: fadeIn 0.3s ease;
}

.lightbox[hidden] { 
  display: none; 
}

.lightbox img { 
  max-width: 95%; 
  max-height: 90vh; 
  object-fit: contain; 
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(236, 72, 153, 0.2);
  animation: scaleIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  font-size: 2rem;
  line-height: 1;
  background: rgba(30, 36, 48, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(236, 72, 153, 0.3);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-close:hover { 
  background: rgba(236, 72, 153, 0.2);
  border-color: var(--accent);
  transform: rotate(90deg) scale(1.1);
  box-shadow: 0 8px 20px rgba(236, 72, 153, 0.3);
}
/* --- Responsive & Mobile optimizations --- */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .section { padding: 4rem 0; }
}

@media (max-width: 768px) {
  .hero { padding: 5rem 20px 6rem; }
  .hero-content h1 { font-size: 2.5rem; }
  .section h2 { font-size: 2rem; }
  .section-header h2 { font-size: 2.25rem; }
  .download-box { padding: 2rem; }
  .feature-card, .card { padding: 1.5rem; }
  .history-block, .version-block { padding: 1.5rem; }
  .stats-bar .stats-grid { gap: 1.5rem; }
  .hero-buttons { flex-direction: column; width: 100%; }
  .hero-buttons .btn { width: 100%; text-align: center; }
  .trust-badges { justify-content: center; }
  .footer-links-grid { justify-content: flex-start; gap: 2rem; }
  .back-to-top { bottom: 1.5rem; right: 1.5rem; width: 50px; height: 50px; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 2rem; }
  .section h2 { font-size: 1.75rem; }
  .section-header h2 { font-size: 1.85rem; }
  .section { padding: 3rem 0; }
  .download-box { padding: 1.5rem; }
  .stat-item strong { font-size: 1.75rem; }
  .feature-icon, .card-icon { font-size: 2.25rem; }
  .version-block-header { flex-direction: column; align-items: flex-start; }
  .faq-item summary { font-size: 1rem; padding: 1.25rem; }
  .faq-item p { padding: 1.25rem 1.5rem 1.5rem 1.5rem; }
  .container { padding: 0 16px; }
}

/* --- Accessibility improvements --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --- Print styles --- */
@media print {
  .top-bar,
  .mobile-menu-btn,
  .back-to-top,
  .lightbox,
  .hero-buttons,
  .download-buttons,
  .contact-form {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .section {
    page-break-inside: avoid;
  }
}