@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --bg-primary: #090d16;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(31, 41, 55, 0.8);
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --accent-primary: #6366f1;
  --accent-glow: #818cf8;
  --accent-green: #10b981;
  --accent-green-glow: #34d399;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(99, 102, 241, 0.3);
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

a, a:hover, a:focus, a:active, a:visited {
  text-decoration: none !important;
}

img, svg {
  max-width: 100%;
  height: auto;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  background: 
    radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.12) 0%, transparent 40%),
    var(--bg-primary);
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 1;
  padding: 0;
  margin: 0;
}

.logo-img {
  height: 38px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
}

.logo-badge {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-green));
  color: #fff;
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-weight: 700;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: #fff;
}

/* Header Actions Buttons */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s ease;
  color: #fff;
}

.nav-btn-login {
  background: rgba(59, 130, 246, 0.2);
  border: 1px solid rgba(59, 130, 246, 0.4);
  color: #93c5fd;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav-btn-login:hover {
  background: rgba(59, 130, 246, 0.4);
  color: #fff;
  transform: translateY(-1px);
}

.nav-btn-chat {
  background: rgba(245, 158, 11, 0.2);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fcd34d;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav-btn-chat:hover {
  background: rgba(245, 158, 11, 0.4);
  color: #fff;
  transform: translateY(-1px);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.85) 0%, rgba(5, 150, 105, 0.9) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff !important;
  padding: 0.45rem 1rem;
  border-radius: 8px;
  font-weight: 700 !important;
  font-size: 0.85rem;
  border: 1px solid rgba(52, 211, 153, 0.35);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45), inset 0 1px 1px rgba(255, 255, 255, 0.5);
}

/* Hero Section */
.hero {
  padding: 4rem 0 3rem;
  text-align: center;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--border-highlight);
  color: var(--accent-glow);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-highlight {
  background: linear-gradient(135deg, #818cf8, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem;
}

/* Hero Banner Showcase */
.hero-banner-container {
  max-width: 750px;
  margin: 0 auto 2.5rem;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  background: var(--bg-card);
}

.hero-banner-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.hero-banner-container:hover .hero-banner-img {
  transform: scale(1.02);
}

/* Download Card */
.download-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 2.5rem;
  max-width: 750px;
  margin: 0 auto 4rem;
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.download-box::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-glow), var(--accent-green), transparent);
}

.app-header-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  text-align: left;
  margin-bottom: 2rem;
}

.app-icon {
  width: 90px;
  height: 90px;
  background: linear-gradient(135deg, #1e1b4b, #312e81);
  border: 2px solid var(--border-highlight);
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.25);
  flex-shrink: 0;
  overflow: hidden;
}

.app-icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
}

.app-title-group h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
}

.app-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
  margin-top: 0.4rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.rating {
  color: #fbbf24;
  font-weight: 700;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  padding: 1.1rem 1rem;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.85) 0%, rgba(5, 150, 105, 0.9) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 12px;
  border: 1px solid rgba(52, 211, 153, 0.35);
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-align: center;
  white-space: normal;
  word-break: break-word;
}

.btn-download:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(16, 185, 129, 0.5), inset 0 1px 1px rgba(255, 255, 255, 0.5);
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.9) 0%, rgba(16, 185, 129, 0.95) 100%);
}

.btn-sub-note {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 2.5rem;
  text-align: center;
  letter-spacing: 0.5px;
}

/* Quick Action Buttons Bar */
.action-buttons-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn-action {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 0.5rem;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  color: #ffffff;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.2);
}

.btn-register {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.85) 0%, rgba(79, 70, 229, 0.9) 100%);
  border-color: rgba(165, 180, 252, 0.35);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.3);
}

.btn-register:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, rgba(129, 140, 248, 0.95) 0%, rgba(99, 102, 241, 0.95) 100%);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45), inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

.btn-login {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.85) 0%, rgba(37, 99, 235, 0.9) 100%);
  border-color: rgba(147, 197, 253, 0.35);
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.3);
}

.btn-login:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.95) 0%, rgba(59, 130, 246, 0.95) 100%);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.45), inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

.btn-chat {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.85) 0%, rgba(217, 119, 6, 0.9) 100%);
  border-color: rgba(252, 211, 77, 0.35);
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.3);
}

.btn-chat:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.95) 0%, rgba(245, 158, 11, 0.95) 100%);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45), inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

/* Specs Table */
.specs-section {
  margin-bottom: 4rem;
}

.section-title {
  text-align: center;
  font-size: 1.85rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: #fff;
}

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

.spec-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.spec-icon {
  font-size: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--accent-glow);
  flex-shrink: 0;
}

.spec-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.spec-value {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

/* Content & Features Section */
.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
  margin-bottom: 4rem;
}

.content-card h2 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
  color: #fff;
}

.content-card p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.promo-showcase-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 2rem;
  align-items: center;
  margin: 2rem 0;
  background: rgba(255, 255, 255, 0.02);
  padding: 1.5rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
}

.square-banner-img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  display: block;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 14px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
}

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  display: inline-block;
}

.feature-item h3 {
  font-size: 1.15rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.feature-item p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* Installation Guide */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.step-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 1.25rem 1.5rem;
  border-radius: 14px;
}

.step-number {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-glow));
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex-shrink: 0;
}

.step-info h3 {
  font-size: 1.05rem;
  color: #fff;
  margin-bottom: 0.25rem;
}

.step-info p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* FAQ Section */
.faq-section {
  margin-bottom: 4rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

details {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  transition: background 0.3s ease;
}

details[open] {
  background: rgba(31, 41, 55, 0.6);
  border-color: var(--border-highlight);
}

summary {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--accent-glow);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

details[open] summary::after {
  content: '−';
}

details p {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  background: #060911;
  padding: 3rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.25rem;
  margin: 1rem 0 1.5rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: #fff;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .nav-links {
    display: none;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 2.5rem 0 2rem;
  }

  .hero h1 {
    font-size: 1.75rem;
    line-height: 1.25;
  }

  .hero p {
    font-size: 1rem;
    margin-bottom: 1.75rem;
  }

  .app-header-info {
    flex-direction: column;
    text-align: center;
  }

  .app-meta {
    justify-content: center;
  }

  .nav-btn {
    display: none;
  }

  .download-box {
    padding: 1.5rem 1rem;
    border-radius: 16px;
  }

  .btn-download {
    padding: 0.85rem 0.75rem;
    font-size: 0.95rem;
    border-radius: 10px;
  }

  .btn-sub-note {
    font-size: 0.8rem;
    margin-top: 1.75rem;
    padding: 0 0.5rem;
  }

  .action-buttons-group {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .promo-showcase-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 1.25rem;
    padding: 1.25rem 1rem;
  }

  .square-banner-img {
    max-width: 260px;
  }

  .content-card {
    padding: 1.5rem 1rem;
    border-radius: 16px;
  }

  .content-card h2 {
    font-size: 1.35rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .step-card {
    padding: 1rem;
    gap: 0.85rem;
  }

  details {
    padding: 1rem;
  }

  summary {
    font-size: 0.98rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  header {
    padding: 0.65rem 0;
  }

  .logo {
    gap: 0.4rem;
  }

  .logo-img {
    height: 32px;
  }

  .logo-badge {
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
  }

  .nav-cta {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
  }

  .specs-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .spec-card {
    padding: 0.85rem;
    flex-direction: column;
    text-align: center;
    gap: 0.4rem;
  }

  .spec-icon {
    width: 38px;
    height: 38px;
    font-size: 1.2rem;
  }

  .spec-label {
    font-size: 0.72rem;
  }

  .spec-value {
    font-size: 0.88rem;
  }
}