/* ==========================================================================
   SNTP Cloud (sntpjiasu.sbs) Design System & Stylesheet
   ========================================================================== */

:root {
  --primary: #10b981;
  --primary-hover: #059669;
  --primary-light: #ecfdf5;
  --primary-ring: rgba(16, 185, 129, 0.25);
  --accent-cyan: #06b6d4;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --border-light: #e2e8f0;
  --border-focus: #10b981;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.05), 0 8px 10px -6px rgba(0,0,0,0.03);
  --shadow-glow: 0 0 20px rgba(16, 185, 129, 0.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Nav */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 96px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  height: 72px;
  width: auto;
  object-fit: contain;
  transition: transform 0.25s ease;
}

.brand img:hover {
  transform: scale(1.04);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-muted);
  font-size: 15px;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
}

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

.btn-secondary:hover {
  background-color: #d1fae5;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border-light);
  color: var(--text-main);
}

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

.btn-accent {
  background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.3);
}

.btn-accent:hover {
  opacity: 0.95;
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  padding: 80px 0;
  background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.08), transparent 50%),
              radial-gradient(circle at bottom left, rgba(6, 182, 212, 0.05), transparent 50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary-hover);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-title span {
  background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.hero-image {
  position: relative;
}

.hero-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

/* Feature Cards Section */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px auto;
}

.section-tag {
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 16px;
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  padding: 32px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(16, 185, 129, 0.4);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* Pricing Section */
.pricing-section {
  background: #f1f5f9;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pricing-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--border-light);
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
  transform: scale(1.03);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #10b981, #06b6d4);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-full);
}

.pricing-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 38px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
}

.pricing-price span {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 400;
}

.pricing-period {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.pricing-features li i {
  color: var(--primary);
  font-weight: bold;
}

/* Reviews Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  padding: 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.review-stars {
  color: #f59e0b;
  margin-bottom: 12px;
  font-size: 16px;
}

.review-text {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-style: italic;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.user-info h4 {
  font-size: 15px;
  font-weight: 700;
}

.user-info p {
  font-size: 13px;
  color: var(--text-light);
}

/* Articles Matrix Section */
.articles-section {
  background: #ffffff;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.article-card {
  background: var(--bg-main);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

.article-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-tag {
  display: inline-block;
  color: var(--primary);
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 8px;
}

.article-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.4;
}

.article-excerpt {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-grow: 1;

  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-link {
  font-weight: 600;
  font-size: 14px;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-link:hover {
  gap: 10px;
}

/* FAQ Section */
.faq-grid {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all 0.2s ease;
}

.faq-question {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.faq-question i {
  color: var(--primary);
}

.faq-answer {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Footer & PBN Link Section */
.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 0 30px 0;
  border-top: 1px solid #1e293b;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: #ffffff;
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #94a3b8;
  font-size: 14px;
}

.footer-col ul li a:hover {
  color: var(--primary);
}

/* Footer Bottom PBN Friends Links Area */
.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
}

.pbn-links-area {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 12px;
}

.pbn-links-area span {
  color: #64748b;
  font-weight: 600;
}

.pbn-links-area a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s ease;
}

.pbn-links-area a:hover {
  color: var(--primary);
}

.copyright {
  color: #64748b;
  font-size: 13px;
}

/* Single Article Layout */
.article-page {
  padding: 60px 0;
}

.article-header {
  max-width: 840px;
  margin: 0 auto 40px auto;
  text-align: center;
}

.article-header h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 16px;
  line-height: 1.3;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 14px;
  color: var(--text-light);
}

.article-container {
  max-width: 840px;
  margin: 0 auto;
  background: #ffffff;
  padding: 48px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: #334155;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin: 36px 0 16px 0;
  border-left: 4px solid var(--primary);
  padding-left: 12px;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin: 24px 0 12px 0;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content ul, .article-content ol {
  margin: 0 0 20px 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  font-style: italic;
  color: #065f46;
}

.article-cta-box {
  margin: 40px 0;
  padding: 32px;
  background: linear-gradient(135deg, #ecfdf5 0%, #e0f2fe 100%);
  border-radius: var(--radius-md);
  border: 1px solid #a7f3d0;
  text-align: center;
}

.article-cta-box h3 {
  font-size: 22px;
  color: #065f46;
  margin-bottom: 12px;
}

.article-cta-box p {
  color: #047857;
  margin-bottom: 20px;
}

/* Responsive */
@media (max-width: 1024px) {
  .features-grid, .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .articles-grid, .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-cta {
    justify-content: center;
  }
  .features-grid, .pricing-grid, .articles-grid, .reviews-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
  .article-container {
    padding: 24px;
  }
}

/* ==========================================================================
   Download Modal & Client Action Styles
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  padding: 16px;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), 0 20px 40px rgba(0, 0, 0, 0.15);
  width: 100%;
  max-width: 480px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-light);
  transform: translateY(20px) scale(0.98);
  transition: transform 0.25s ease;
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: #f1f5f9;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1;
}

.modal-close-btn:hover {
  background: #e2e8f0;
  color: var(--text-main);
}

.modal-header {
  padding: 32px 28px 16px;
  text-align: center;
}

.modal-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}

.modal-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.3;
}

.modal-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

.modal-body {
  padding: 0 28px 28px;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 16px;
}

.modal-btn-download {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  transition: all 0.2s ease;
  cursor: pointer;
}

.modal-btn-android {
  background: var(--primary);
  color: #ffffff;
  border: 1px solid var(--primary);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.modal-btn-android:hover {
  background: var(--primary-hover);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35);
  transform: translateY(-1px);
}

.modal-btn-ios {
  background: #ffffff;
  color: var(--text-main);
  border: 1.5px solid var(--border-light);
}

.modal-btn-ios:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-1px);
}

.modal-tip {
  margin-top: 20px;
  padding: 12px 14px;
  background: #f8fafc;
  border-radius: var(--radius-sm);
  border: 1px solid #e2e8f0;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

.modal-tip ol {
  margin-left: 18px;
  margin-top: 4px;
}

body.modal-open {
  overflow: hidden;
}