/* ==========================================================================
   aplikasiinvoice.my.id - Design Tokens & Stylesheet
   Invoice Online 101 - Smart SaaS Invoicing & Quotations
   ========================================================================== */

:root {
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-dark: #075985;
  --primary-light: #e0f2fe;
  --primary-gradient: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  
  --secondary: #0b132b;
  --secondary-light: #1c2541;
  
  --accent: #10b981;
  --accent-hover: #059669;
  --accent-light: #ecfdf5;
  
  --amber: #f59e0b;
  --amber-light: #fffbeb;
  
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-alt: #f0f9ff;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-sub: #64748b;
  --text-white: #ffffff;
  
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  --shadow-sm: 0 1px 2px 0 rgba(11, 19, 43, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(11, 19, 43, 0.08), 0 2px 4px -2px rgba(11, 19, 43, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(11, 19, 43, 0.08), 0 4px 6px -4px rgba(11, 19, 43, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(11, 19, 43, 0.1), 0 8px 10px -6px rgba(11, 19, 43, 0.04);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* TOPBAR & NAVBAR */
.topbar {
  background: var(--secondary);
  color: #cbd5e1;
  font-size: 0.78rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 0;
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  box-shadow: 0 4px 10px rgba(2, 132, 199, 0.3);
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: -0.5px;
}

.brand-text span {
  color: var(--primary);
}

.brand-sub {
  font-size: 0.7rem;
  color: var(--text-sub);
  display: block;
  font-weight: 600;
  margin-top: -3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

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

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-gradient);
  color: var(--text-white);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.45);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--secondary);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-alt);
  border-color: #cbd5e1;
}

.btn-whatsapp {
  background: #25d366;
  color: white;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #20ba59;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--secondary);
  cursor: pointer;
  padding: 4px;
}

/* HERO SECTION */
.hero {
  padding: 70px 0 60px;
  background: radial-gradient(circle at 80% 20%, rgba(2, 132, 199, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 10% 80%, rgba(16, 185, 129, 0.05) 0%, transparent 60%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
  border: 1px solid rgba(2, 132, 199, 0.2);
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--secondary);
  margin-bottom: 20px;
}

.hero-title span {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.stat-item h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 2px;
}

.stat-item p {
  font-size: 0.78rem;
  color: var(--text-sub);
  font-weight: 600;
}

/* INVOICE CARD DOCUMENT PREVIEW */
.invoice-card {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-xl);
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.invoice-badge-status {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 800;
  background: #fef3c7;
  color: #b45309;
  border: 1px solid #fde68a;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.invoice-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 18px;
}

.invoice-num {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: 4px;
}

.invoice-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
  font-size: 0.82rem;
}

.invoice-table th {
  background: var(--bg-alt);
  padding: 8px 10px;
  text-align: left;
  font-weight: 700;
  color: var(--secondary);
  border-radius: 4px;
}

.invoice-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-light);
}

.invoice-total-box {
  background: #f8fafc;
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: right;
  margin-bottom: 18px;
}

.invoice-total-amount {
  font-size: 1.4rem;
  font-weight: 900;
  color: #0f172a;
  font-family: var(--font-mono);
}

.stamp-box {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px dashed #0284c7;
  color: #0284c7;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  transform: rotate(-3deg);
}

/* FEATURES SECTION */
.section-features {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-tag {
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: inline-block;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 32px 26px;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-xl);
}

.feature-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 22px;
}

.f-sky { background: #e0f2fe; color: #0284c7; }
.f-emerald { background: #ecfdf5; color: #10b981; }
.f-indigo { background: #eef2ff; color: #4f46e5; }
.f-amber { background: #fffbeb; color: #f59e0b; }
.f-rose { background: #fff1f2; color: #f43f5e; }
.f-violet { background: #f5f3ff; color: #7c3aed; }

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* PRICING */
.section-pricing {
  padding: 80px 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
}

.pricing-card.popular {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-xl);
  transform: scale(1.02);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-gradient);
  color: white;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.pricing-header h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 6px;
}

.pricing-header p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.price-box {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.price-amount {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--secondary);
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-sub);
}

.pricing-features {
  list-style: none;
  margin-bottom: 30px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-main);
  margin-bottom: 12px;
}

.pricing-features li i {
  color: var(--accent);
  font-size: 0.8rem;
}

/* FAQ */
.section-faq {
  padding: 80px 0;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 14px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 700;
  color: var(--secondary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-icon {
  font-size: 0.85rem;
  transition: transform 0.25s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  padding-bottom: 20px;
}

/* CTA BANNER & FOOTER */
.cta-banner {
  background: var(--secondary);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  color: white;
  margin-bottom: 70px;
  box-shadow: var(--shadow-xl);
}

.cta-title {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.cta-desc {
  font-size: 1rem;
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto 30px;
}

.footer {
  background: #090d16;
  color: #94a3b8;
  padding: 60px 0 30px;
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h4 {
  color: white;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
}

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

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

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.wa-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99;
  background: #25d366;
  color: white;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45);
}

@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .features-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .topbar { display: none; }
  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: white; flex-direction: column;
    padding: 24px; border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl); display: none;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero-title { font-size: 2.1rem; }
  .features-grid, .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card.popular { transform: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; gap: 12px; }
}