/* ============================================
   SaaS Premium Light Luxury Theme
   ============================================ */

/* Core Variables */
:root {
  --saas-bg: #f8fafc; /* Rất nhạt, sáng sủa */
  --saas-surface: rgba(255, 255, 255, 0.85); /* Glassmorphism light */
  --saas-surface-hover: rgba(255, 255, 255, 1);
  --saas-border: rgba(15, 23, 42, 0.08);
  --saas-text: #475569; /* Slate 600 for readability */
  --saas-heading: #0f172a; /* Slate 900 */
  
  --saas-primary: #1e3a8a; /* Deep Royal Blue cho uy tín */
  --saas-primary-hover: #172554;
  --saas-accent: #d4af37; /* Metallic Gold cho Luxury */
  --saas-accent-hover: #b8860b;
  --saas-secondary: #0ea5e9; /* Light blue accent */
  
  --saas-radius-sm: 8px;
  --saas-radius-md: 16px;
  --saas-radius-lg: 24px;
}

/* Global Fixes */
body.saas-theme-active {
  background-color: var(--saas-bg);
  color: var(--saas-text);
  font-family: 'Inter', sans-serif;
}

.saas-block {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

.saas-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
  box-sizing: border-box;
}

/* Badge (Trust Signal) */
.saas-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: rgba(30, 58, 138, 0.05);
  border: 1px solid rgba(30, 58, 138, 0.15);
  border-radius: 999px;
  color: var(--saas-primary);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

/* Hero Section */
.saas-hero {
  padding: 60px 0 100px;
  background: #ffffff;
  overflow: hidden;
  position: relative;
}

.saas-hero::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -100px;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
}

.saas-hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(30, 58, 138, 0.06) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
}

.saas-hero-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  position: relative;
  z-index: 1;
}

.saas-hero-left {
  flex: 1 1 500px;
  max-width: 600px;
}

.saas-hero-right {
  flex: 1 1 500px;
  position: relative;
  display: flex;
  justify-content: center;
}

.saas-hero-title {
  font-size: 52px;
  line-height: 1.15;
  font-weight: 800;
  color: var(--saas-heading);
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.saas-hero-title span {
  background: linear-gradient(135deg, var(--saas-primary), var(--saas-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.saas-hero-title span.gold-text {
  background: linear-gradient(135deg, var(--saas-accent), #fcd34d);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.saas-hero-desc {
  font-size: 18px;
  line-height: 1.6;
  color: var(--saas-text);
  margin-bottom: 32px;
}

/* Buttons */
.saas-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  letter-spacing: 0.5px;
}

.saas-hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.saas-btn-primary {
  background: var(--saas-primary);
  color: #fff !important;
  box-shadow: 0 4px 15px rgba(30, 58, 138, 0.25);
  border: 1px solid var(--saas-primary);
}

.saas-btn-primary:hover {
  background: var(--saas-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(30, 58, 138, 0.35);
}

.saas-btn-gold {
  background: linear-gradient(135deg, var(--saas-accent), #fcd34d);
  color: #0f172a !important;
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
  border: none;
}
.saas-btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
  filter: brightness(1.05);
}

.saas-btn-outline {
  background: #ffffff;
  color: var(--saas-heading) !important;
  border: 1px solid var(--saas-border);
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.saas-btn-outline:hover {
  background: #f1f5f9;
  border-color: rgba(15, 23, 42, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.05);
}

/* Stats */
.saas-hero-stats {
  display: flex;
  gap: 32px;
  border-top: 1px solid var(--saas-border);
  padding-top: 32px;
  flex-wrap: wrap;
}

.saas-stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--saas-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.saas-stat-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--saas-text);
}

/* Hero Right Floating Cards */
.saas-hero-img-wrap {
  position: relative;
  z-index: 1;
}

.saas-floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 1);
  border-radius: var(--saas-radius-md);
  padding: 16px 20px;
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.08);
  animation: saasFloat 6s ease-in-out infinite;
}

.saas-card-1 {
  top: 15%;
  left: -40px;
}

.saas-card-2 {
  bottom: 15%;
  right: -40px;
  animation-delay: -3s;
}

@keyframes saasFloat {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

.fc-title { font-size: 12px; color: var(--saas-text); text-transform: uppercase; font-weight: 700; margin-bottom: 4px; }
.fc-value { font-size: 24px; color: var(--saas-accent); font-weight: 800; }
.fc-desc { font-size: 12px; color: #10b981; font-weight: 600; display: flex; align-items: center; gap: 4px; margin-top: 4px; }

/* Logos */
.saas-logos { background: #ffffff; padding: 50px 0; text-align: center; border-top: 1px solid var(--saas-border); border-bottom: 1px solid var(--saas-border); }
.saas-logos-eyebrow { font-size: 13px; font-weight: 700; color: #94a3b8; letter-spacing: 2px; margin-bottom: 30px; text-transform: uppercase; }
.saas-logo-track { display: flex; flex-wrap: wrap; justify-content: center; gap: 50px; align-items: center; opacity: 0.7; filter: grayscale(100%); transition: filter 0.3s; }
.saas-logo-track:hover { filter: grayscale(0%); opacity: 1; }
.saas-logo-track img { max-height: 35px; width: auto; }

/* Section Headers */
.saas-section-header { text-align: center; margin-bottom: 60px; max-width: 700px; margin-left: auto; margin-right: auto; }
.saas-section-eyebrow { display: inline-block; color: var(--saas-primary); font-weight: 700; font-size: 14px; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 16px; padding: 6px 16px; background: rgba(30, 58, 138, 0.05); border-radius: 20px; }
.saas-section-title { font-size: 40px; font-weight: 800; color: var(--saas-heading); line-height: 1.2; margin-bottom: 16px; }
.saas-section-desc { font-size: 16px; color: var(--saas-text); line-height: 1.6; }

/* Services Grid */
.saas-services { background: var(--saas-bg); }
.saas-grid-6 { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 30px; }

.saas-service-card {
  background: #ffffff;
  border: 1px solid var(--saas-border);
  border-radius: var(--saas-radius-lg);
  padding: 40px 30px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 6px rgba(0,0,0,0.02);
  position: relative;
  overflow: hidden;
}

.saas-service-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--saas-primary), var(--saas-accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.saas-service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
  border-color: transparent;
}
.saas-service-card:hover::after {
  opacity: 1;
}

.saas-icon-wrap { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; border-radius: 16px; margin-bottom: 24px; background: rgba(30, 58, 138, 0.05); color: var(--saas-primary); font-size: 24px; }
.saas-service-card:hover .saas-icon-wrap { background: var(--saas-primary); color: #fff; transform: scale(1.1); transition: all 0.3s ease; }

.saas-service-title { font-size: 22px; font-weight: 700; color: var(--saas-heading); margin-bottom: 16px; }
.saas-service-desc { font-size: 15px; color: var(--saas-text); line-height: 1.6; margin-bottom: 24px; }
.saas-service-link { font-size: 15px; font-weight: 600; color: var(--saas-primary); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.saas-service-link svg { transition: transform 0.3s ease; }
.saas-service-link:hover { color: var(--saas-primary-hover); }
.saas-service-link:hover svg { transform: translateX(5px); }

/* Asymmetric Layouts (Case Study) */
.saas-asymmetric { background: #ffffff; overflow: hidden; border-top: 1px solid var(--saas-border); }
.alt-bg { background: var(--saas-bg); }
.saas-asy-container { display: flex; gap: 50px; align-items: stretch; }
.saas-asy-left { width: 350px; flex-shrink: 0; display: flex; flex-direction: column; justify-content: center; }
.saas-asy-right { display: flex; gap: 30px; overflow-x: auto; padding: 20px 0 40px 20px; scrollbar-width: none; flex-grow: 1; margin-right: -20px; }
.saas-asy-right::-webkit-scrollbar { display: none; }

.saas-card {
  min-width: 380px;
  width: 380px;
  background: #ffffff;
  border: 1px solid var(--saas-border);
  border-radius: var(--saas-radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 10px 25px rgba(0,0,0,0.03);
}

.saas-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}

.saas-card-img { width: 100%; height: 220px; object-fit: cover; border-bottom: 1px solid var(--saas-border); }

.saas-card-body { padding: 30px; }
.saas-card-title { font-size: 20px; font-weight: 800; color: var(--saas-heading); margin-bottom: 16px; line-height: 1.4; }
.saas-card-stats { display: flex; gap: 24px; margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--saas-border); }
.saas-cs-stat { display: flex; flex-direction: column; }
.saas-cs-stat-val { font-size: 22px; font-weight: 800; color: #10b981; }
.saas-cs-stat-lbl { font-size: 13px; font-weight: 500; color: var(--saas-text); margin-top: 4px; }
.saas-card-link { font-size: 15px; font-weight: 600; color: var(--saas-primary); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.saas-card-link:hover { color: var(--saas-primary-hover); }

/* Footer */
.saas-custom-footer { background: #ffffff; border-top: 1px solid var(--saas-border); color: var(--saas-text); font-size: 15px; }
.saas-footer-grid { display: flex; flex-wrap: wrap; gap: 40px; padding: 80px 0 60px; }
.saas-footer-brand { flex: 2 1 300px; }
.saas-footer-brand p { margin-bottom: 24px; line-height: 1.6; max-width: 320px; }
.saas-footer-col { flex: 1 1 200px; }
.saas-footer-col h3 { color: var(--saas-heading); font-size: 16px; font-weight: 800; margin-bottom: 24px; letter-spacing: 0.5px; text-transform: uppercase; }
.saas-footer-col ul { list-style: none; padding: 0; margin: 0; }
.saas-footer-col li { margin-bottom: 16px; }
.saas-footer-col a { color: var(--saas-text); text-decoration: none; transition: color 0.2s; }
.saas-footer-col a:hover { color: var(--saas-primary); }

.saas-socials { display: flex; gap: 16px; }
.saas-socials a { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: rgba(15, 23, 42, 0.05); color: var(--saas-heading); border-radius: 50%; transition: all 0.3s; }
.saas-socials a:hover { background: var(--saas-primary); color: #fff; transform: translateY(-3px); }
.saas-socials a svg { width: 20px; height: 20px; }

.contact-list li { display: flex; gap: 12px; align-items: flex-start; }
.contact-list svg { color: var(--saas-primary); flex-shrink: 0; margin-top: 4px; }

.saas-footer-btn { display: inline-block; padding: 12px 24px; background: var(--saas-primary); color: #fff !important; font-weight: 700; border-radius: 8px; text-align: center; width: 100%; box-sizing: border-box; margin-top: 16px; transition: background 0.3s; }
.saas-footer-btn:hover { background: var(--saas-primary-hover); }

.saas-footer-bottom { border-top: 1px solid var(--saas-border); padding: 24px 0; background: #f8fafc; }
.saas-footer-links a { color: var(--saas-text); margin-left: 24px; text-decoration: none; font-size: 14px; }
.saas-footer-links a:hover { color: var(--saas-primary); }

/* Responsive Adjustments */
@media (max-width: 991px) {
  .saas-hero-title { font-size: 40px; }
  .saas-asy-container { flex-direction: column; }
  .saas-asy-left { width: 100%; text-align: center; align-items: center; }
  .saas-section-header.saas-asy-left { margin-left: auto; margin-right: auto; }
  .saas-asy-right { width: 100%; padding-left: 0; margin-right: 0; padding-bottom: 20px; }
}

@media (max-width: 768px) {
  .saas-hero { padding: 100px 0 60px; }
  .saas-hero-title { font-size: 36px; }
  .saas-section-title { font-size: 32px; }
  .saas-grid-6 { grid-template-columns: 1fr; }
  .saas-card { min-width: 85vw; width: 85vw; }
  .saas-footer-grid { gap: 30px; }
}

/* Hide default Flatsome footer on homepage to prevent duplication with custom Luxury footer */
.home footer.site-footer {
    display: none !important;
}

/* ============================================
   Dark Mode & UI Upgrades
   ============================================ */
[data-theme="dark"] {
  --saas-bg: #0f172a;
  --saas-surface: rgba(30, 41, 59, 0.85);
  --saas-surface-hover: rgba(30, 41, 59, 1);
  --saas-border: rgba(255, 255, 255, 0.1);
  --saas-text: #94a3b8;
  --saas-heading: #f8fafc;
  --saas-primary: #3b82f6;
  --saas-primary-hover: #60a5fa;
  --saas-accent: #fbbf24;
}

[data-theme="dark"] .saas-hero { background: #0f172a; }
[data-theme="dark"] .saas-logos { background: #0f172a; }
[data-theme="dark"] .saas-service-card { background: #1e293b; }
[data-theme="dark"] .saas-asymmetric { background: #0f172a; }
[data-theme="dark"] .saas-card { background: #1e293b; }
[data-theme="dark"] .saas-custom-footer { background: #0f172a; }
[data-theme="dark"] .saas-footer-bottom { background: #0f172a; }
[data-theme="dark"] .saas-btn-outline { background: #1e293b; color: #f8fafc !important; border-color: rgba(255,255,255,0.2); }
[data-theme="dark"] .saas-logo-track { filter: grayscale(100%) invert(1) opacity(0.7); }
[data-theme="dark"] .saas-logo-track:hover { filter: invert(1) opacity(1); }

/* Mobile Sticky CTA */
.saas-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--saas-surface);
  backdrop-filter: blur(12px);
  padding: 12px 20px;
  border-top: 1px solid var(--saas-border);
  z-index: 999;
  text-align: center;
  box-shadow: 0 -10px 20px rgba(0,0,0,0.05);
}
@media (max-width: 768px) {
  .saas-sticky-cta { display: flex; gap: 12px; align-items: center; justify-content: center; }
  body.saas-theme-active { padding-bottom: 70px; } /* Prevent footer overlap */
}

/* Dark mode toggle button */
.saas-theme-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--saas-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1000;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  border: none;
  transition: all 0.3s ease;
}
.saas-theme-toggle:hover { transform: scale(1.1); }
@media (max-width: 768px) {
  .saas-theme-toggle { bottom: 85px; right: 16px; width: 44px; height: 44px; }
}

/* Scroll Animations */
.saas-fade-up { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1); }
.saas-fade-up.is-visible { opacity: 1; transform: translateY(0); }