:root {
  --bg-primary: #0B0F19;
  --bg-surface: #111827;
  --bg-card: #151D2F;
  --bg-card-hover: #1A243B;
  --bg-input: #0E1422;
  
  --color-primary: #EE4343;
  --color-primary-hover: #DC2626;
  --color-primary-glow: rgba(238, 67, 67, 0.25);
  
  --color-accent-blue: #3B82F6;
  --color-accent-green: #10B981;
  --color-accent-amber: #F59E0B;
  --color-accent-purple: #8B5CF6;
  --color-accent-cyan: #06B6D4;
  
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(238, 67, 67, 0.35);
  --border-subtle: rgba(255, 255, 255, 0.04);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px -10px rgba(238, 67, 67, 0.3);
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1200px;
}

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

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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

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

/* Background Glowing Orbs */
.glow-orb {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.18;
}

.glow-orb-1 {
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
}

.glow-orb-2 {
  top: 800px;
  right: -100px;
  background: radial-gradient(circle, var(--color-accent-blue) 0%, transparent 70%);
}

.glow-orb-3 {
  bottom: 200px;
  left: -100px;
  background: radial-gradient(circle, var(--color-accent-purple) 0%, transparent 70%);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header & Nav */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(11, 15, 25, 0.85);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 4px 14px rgba(238, 67, 67, 0.4);
  display: block;
}

.logo-badge {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #EE4343, #B91C1C);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(238, 67, 67, 0.4);
}

.logo-badge svg {
  width: 22px;
  height: 22px;
  fill: white;
}

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

.nav-link {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

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

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #EE4343, #D32F2F);
  color: white;
  box-shadow: 0 4px 20px rgba(238, 67, 67, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(238, 67, 67, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  background: rgba(238, 67, 67, 0.12);
  color: #FF6B6B;
  border: 1px solid rgba(238, 67, 67, 0.25);
}

/* Hero Section */
.hero-section {
  padding-top: 150px;
  padding-bottom: 90px;
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: 820px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3.8rem;
  letter-spacing: -0.03em;
  margin: 20px 0;
  background: linear-gradient(180deg, #FFFFFF 40%, #94A3B8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 50px;
  padding: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  display: block;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Bento Grid Section */
.section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-title {
  font-size: 2.5rem;
  margin: 16px 0 12px;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.bento-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-color-hover);
  box-shadow: 0 16px 36px -12px rgba(0, 0, 0, 0.6), 0 0 30px -10px var(--color-primary-glow);
}

.bento-card-featured {
  grid-column: span 2;
  background: linear-gradient(145deg, #151D2F, #19243C);
}

.tool-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.tool-icon-merge { background: rgba(238, 67, 67, 0.15); color: #EE4343; }
.tool-icon-split { background: rgba(59, 130, 246, 0.15); color: #3B82F6; }
.tool-icon-lock { background: rgba(16, 185, 129, 0.15); color: #10B981; }
.tool-icon-unlock { background: rgba(245, 158, 11, 0.15); color: #F59E0B; }
.tool-icon-delete { background: rgba(239, 68, 68, 0.15); color: #EF4444; }
.tool-icon-sign { background: rgba(139, 92, 246, 0.15); color: #8B5CF6; }
.tool-icon-watermark { background: rgba(236, 72, 153, 0.15); color: #EC4899; }
.tool-icon-number { background: rgba(6, 182, 212, 0.15); color: #06B6D4; }
.tool-icon-rotate { background: rgba(20, 184, 166, 0.15); color: #14B8A6; }
.tool-icon-compress { background: rgba(249, 115, 22, 0.15); color: #F97316; }

.bento-title {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.bento-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Security Section */
.security-banner {
  background: linear-gradient(135deg, rgba(238, 67, 67, 0.08), rgba(59, 130, 246, 0.08));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.security-list {
  list-style: none;
  margin-top: 24px;
}

.security-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.security-list svg {
  width: 22px;
  height: 22px;
  fill: var(--color-accent-green);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card-popular {
  border-color: var(--color-primary);
  background: linear-gradient(145deg, #181E30, #1E273E);
  box-shadow: 0 0 35px -10px var(--color-primary-glow);
  transform: scale(1.03);
}

.popular-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 800;
}

.plan-price {
  font-size: 2.8rem;
  font-weight: 800;
  margin: 16px 0;
  color: var(--text-primary);
}

.plan-period {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.pricing-features {
  list-style: none;
  margin: 24px 0;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.pricing-features svg {
  width: 18px;
  height: 18px;
  fill: var(--color-accent-green);
  flex-shrink: 0;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.faq-question {
  padding: 20px 24px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  text-align: left;
}

.faq-icon {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}

/* Legal & Policy Pages Layout */
.legal-page {
  padding-top: 140px;
  padding-bottom: 90px;
  max-width: 860px;
  margin: 0 auto;
}

.legal-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.legal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.legal-content h2 {
  font-size: 1.6rem;
  margin: 32px 0 16px;
  color: var(--text-primary);
}

.legal-content h3 {
  font-size: 1.25rem;
  margin: 24px 0 12px;
  color: var(--text-primary);
}

.legal-content p, .legal-content ul, .legal-content ol {
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.legal-content ul, .legal-content ol {
  padding-left: 24px;
}

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

.callout-box {
  background: rgba(238, 67, 67, 0.08);
  border-left: 4px solid var(--color-primary);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(238, 67, 67, 0.2);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* Footer */
.footer {
  margin-top: auto;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
}

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

.footer-brand p {
  margin-top: 14px;
  font-size: 0.95rem;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 18px;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
}

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-title { font-size: 3rem; }
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-card-featured { grid-column: span 2; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin-left: auto; margin-right: auto; }
  .pricing-card-popular { transform: none; }
  .security-banner { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero-title { font-size: 2.3rem; }
  .hero-subtitle { font-size: 1.05rem; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card-featured { grid-column: span 1; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
  }
  .nav-menu.active { display: flex; }
  .mobile-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .legal-content { padding: 24px; }
}