/* ============================================
   InvoicesMate Website - Style System
   ============================================ */

:root {
  /* Brand Colors */
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #3B82F6;
  --accent: #22D3EE;
  --accent-green: #10B981;
  --accent-red: #EF4444;
  --accent-orange: #F59E0B;

  /* Dark Theme */
  --bg-deep: #060B18;
  --bg-surface: #0D1529;
  --bg-elevated: #152042;
  --bg-card: #111B33;

  /* Text */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  /* Borders */
  --border: rgba(148, 163, 184, 0.12);
  --border-light: rgba(148, 163, 184, 0.06);

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1140px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: var(--primary-light);
}

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

/* ============================================
   Layout
   ============================================ */

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: var(--section-padding);
}

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.3s var(--ease);
  background: transparent;
}

.nav.scrolled {
  background: rgba(6, 11, 24, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

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

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s var(--ease);
}

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

.nav-cta {
  background: var(--primary);
  color: white !important;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  transition: all 0.2s var(--ease);
}

.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

/* Mobile menu */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-text {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(37, 99, 235, 0.2);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 24px;
}

.hero-badge span {
  font-size: 0.75rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 500px;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: white;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.3);
  color: white;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-secondary);
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.btn-secondary:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-phone {
  width: 280px;
  height: 580px;
  background: var(--bg-card);
  border-radius: 40px;
  border: 2px solid var(--border);
  position: relative;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

.hero-phone-screen {
  width: 100%;
  height: 100%;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.phone-header {
  text-align: center;
  padding: 24px 0 12px;
}

.phone-header .logo-small {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  margin-bottom: 8px;
}

.phone-header h3 {
  font-size: 0.95rem;
  font-weight: 700;
}

.phone-header p {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.phone-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.phone-stat {
  background: var(--bg-elevated);
  border-radius: 12px;
  padding: 12px;
  border: 1px solid var(--border-light);
}

.phone-stat .label {
  font-size: 0.6rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.phone-stat .value {
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 2px;
}

.phone-stat .value.green { color: var(--accent-green); }
.phone-stat .value.blue { color: var(--primary-light); }
.phone-stat .value.orange { color: var(--accent-orange); }
.phone-stat .value.cyan { color: var(--accent); }

.phone-invoice-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.phone-invoice {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-elevated);
  border-radius: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border-light);
}

.phone-invoice .inv-info .inv-num {
  font-size: 0.75rem;
  font-weight: 600;
}

.phone-invoice .inv-info .inv-client {
  font-size: 0.6rem;
  color: var(--text-muted);
}

.phone-invoice .inv-amount {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-green);
}

.phone-invoice .inv-status {
  font-size: 0.55rem;
  padding: 2px 8px;
  border-radius: 100px;
  font-weight: 600;
}

.inv-status.paid {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
}

.inv-status.sent {
  background: rgba(59, 130, 246, 0.15);
  color: var(--primary-light);
}

.inv-status.overdue {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-red);
}

/* ============================================
   Features Section
   ============================================ */

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

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

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s var(--ease);
}

.feature-card:hover {
  border-color: rgba(37, 99, 235, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.feature-icon.blue {
  background: rgba(37, 99, 235, 0.12);
}

.feature-icon.green {
  background: rgba(16, 185, 129, 0.12);
}

.feature-icon.cyan {
  background: rgba(34, 211, 238, 0.12);
}

.feature-icon.orange {
  background: rgba(245, 158, 11, 0.12);
}

.feature-icon.red {
  background: rgba(239, 68, 68, 0.12);
}

.feature-icon.purple {
  background: rgba(139, 92, 246, 0.12);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ============================================
   Australia Section
   ============================================ */

.australia-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.australia-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.australia-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.aus-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.aus-feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(34, 211, 238, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.aus-feature h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.aus-feature p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================
   Security Section
   ============================================ */

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

.security-item {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.security-item .icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.security-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.security-item p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
  text-align: center;
  padding: 120px 0;
}

.cta-box {
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-surface) 100%);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 64px;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
}

.cta-box h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-box p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.store-badges {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: white;
  color: #111;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s var(--ease);
}

.store-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.1);
  color: #111;
}

.store-badge .store-icon {
  font-size: 1.4rem;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.footer-brand span {
  font-weight: 700;
  font-size: 1.1rem;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
  max-width: 300px;
}

.footer-column h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.footer-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-column a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color 0.2s var(--ease);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ============================================
   Legal Pages (Privacy, Terms, Support)
   ============================================ */

.legal-page {
  padding-top: 120px;
  padding-bottom: 80px;
  min-height: 100vh;
}

.legal-content {
  max-width: 760px;
  margin: 0 auto;
}

.legal-content h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.legal-date {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 48px;
}

.legal-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.legal-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
}

.legal-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.legal-content ul, .legal-content ol {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 16px;
  padding-left: 24px;
}

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

.legal-content strong {
  color: var(--text-primary);
}

.legal-content a {
  color: var(--accent);
}

/* Support page specific */
.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}

.faq-item h3 {
  margin-top: 0;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.faq-item p {
  margin-bottom: 0;
}

.contact-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  margin-top: 48px;
  text-align: center;
}

.contact-box h2 {
  margin-top: 0;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero-description {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .hero-phone {
    width: 240px;
    height: 500px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .australia-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .security-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 64px 0;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(6, 11, 24, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    min-height: auto;
    padding-top: 100px;
    padding-bottom: 60px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
  }

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

  .security-grid {
    grid-template-columns: 1fr;
  }

  .section-header h2 {
    font-size: 1.8rem;
  }

  .cta-box {
    padding: 40px 24px;
  }

  .cta-box h2 {
    font-size: 1.6rem;
  }

  .store-badges {
    flex-direction: column;
    align-items: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .legal-content h1 {
    font-size: 1.8rem;
  }
}