/* ========================================
   PinTech Landing Page — Design System
   ======================================== */

/* --- Variables --- */
:root {
  --primary: #16A34A;
  --primary-hover: #15803D;
  --bg-dark: #111827;
  --bg-white: #FFFFFF;
  --text: #111827;
  --text-muted: #6B7280;
  --text-on-dark: #F9FAFB;
  --text-muted-on-dark: #9CA3AF;
  --card-bg: #FFFFFF;
  --card-bg-dark: #1F2937;
  --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --card-shadow-dark: 0 2px 8px rgba(0, 0, 0, 0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 1120px;
  --nav-height: 64px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --- Typography --- */
h1 { font-size: 3rem; font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: 2.25rem; font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
p  { font-size: 1.125rem; line-height: 1.7; }

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

section {
  padding: 96px 0;
}

.section-dark {
  background: var(--bg-dark);
  color: var(--text-on-dark);
}

.section-label {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 56px;
}

.section-dark .section-subtitle {
  color: var(--text-muted-on-dark);
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  transition: background 0.3s, box-shadow 0.3s;
}

.navbar.scrolled {
  background: var(--bg-white);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.08);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
}

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

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

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: background 0.2s;
}

.nav-cta:hover {
  background: var(--primary-hover);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* --- Hero --- */
.hero {
  padding-top: calc(var(--nav-height) + 80px);
  padding-bottom: 96px;
  text-align: center;
}

.hero h1 {
  margin-bottom: 20px;
}

.hero .highlight {
  color: var(--primary);
}

.hero p {
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
}

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 1.0625rem;
  font-weight: 600;
  transition: background 0.2s, transform 0.1s;
}

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

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Store Badges --- */
.store-badges {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 20px;
  flex-wrap: wrap;
}

.store-badge {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  background: var(--bg-dark);
  color: var(--text-muted-on-dark);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

a.store-badge:hover {
  background: var(--green);
  color: #fff;
}

/* --- Phone Showcase --- */
.phone-showcase {
  display: flex;
  gap: 40px;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-top: 16px;
}

.phone-frame {
  position: relative;
  width: 260px;
  background: #000;
  border-radius: 36px;
  padding: 12px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.phone-screen {
  width: 100%;
  height: 460px;
  border-radius: 24px;
  overflow: hidden;
}

.phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 24px;
  background: #000;
  border-radius: 0 0 16px 16px;
  z-index: 2;
}

.phone-frame img {
  width: 100%;
  display: block;
}

.phone-caption {
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted-on-dark);
  margin-top: 16px;
  padding-bottom: 4px;
}

/* --- Grid --- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

/* --- Cards --- */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--card-shadow);
}

.section-dark .card {
  background: var(--card-bg-dark);
  box-shadow: var(--card-shadow-dark);
}

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

.card h3 {
  margin-bottom: 8px;
}

.card p {
  font-size: 1rem;
  color: var(--text-muted);
}

.section-dark .card p {
  color: var(--text-muted-on-dark);
}

/* --- Stat Card --- */
.stat-card {
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-muted-on-dark);
}

/* --- Flow Diagram --- */
.flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.flow-step {
  background: var(--card-bg-dark);
  border-radius: var(--radius);
  padding: 20px 24px;
  text-align: center;
  min-width: 140px;
}

.flow-step .flow-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.flow-step p {
  font-size: 0.9375rem;
  font-weight: 500;
}

.flow-arrow {
  font-size: 1.5rem;
  color: var(--primary);
  flex-shrink: 0;
}

/* --- Checklist --- */
.checklist {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 40px;
}

.checklist li {
  font-size: 1rem;
  padding: 8px 0;
}

.checklist li::before {
  content: "\2705";
  margin-right: 8px;
}

/* --- Tech Stack Bar --- */
.tech-bar {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 20px 24px;
  background: #F3F4F6;
  border-radius: var(--radius-sm);
}

.tech-bar span {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* --- Table --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 32px;
}

.data-table th,
.data-table td {
  padding: 14px 20px;
  text-align: left;
  font-size: 1rem;
}

.data-table thead th {
  background: var(--card-bg-dark);
  color: var(--text-on-dark);
  font-weight: 600;
  border-bottom: 2px solid var(--primary);
}

.section-dark .data-table thead th {
  background: rgba(255, 255, 255, 0.05);
}

.data-table tbody tr {
  border-bottom: 1px solid #E5E7EB;
}

.section-dark .data-table tbody tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.data-table tbody td {
  color: var(--text);
}

.section-dark .data-table tbody td {
  color: var(--text-on-dark);
}

/* --- Pricing Tiers --- */
.tier {
  border-left: 3px solid var(--primary);
  padding-left: 20px;
  margin-bottom: 24px;
}

.tier h3 {
  margin-bottom: 4px;
}

.tier .price {
  font-size: 1rem;
  color: var(--primary);
  font-weight: 600;
}

.tier p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --- Team Cards --- */
.team-card {
  text-align: center;
}

.team-card .team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
}

.team-card .team-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-card .team-role {
  font-size: 0.9375rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.team-card .team-bio {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- Advantage List --- */
.advantage-list {
  list-style: none;
  margin-top: 48px;
}

.advantage-list li {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.advantage-number {
  background: var(--primary);
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.advantage-list li p {
  font-size: 1rem;
}

.advantage-list li strong {
  display: block;
  margin-bottom: 2px;
}

/* --- Vision Timeline --- */
.timeline {
  display: flex;
  gap: 32px;
  margin-top: 48px;
}

.timeline-item {
  flex: 1;
  position: relative;
  padding-left: 24px;
  border-left: 3px solid var(--primary);
}

.timeline-year {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.timeline-item p {
  font-size: 1.0625rem;
  color: var(--text-on-dark);
}

/* --- Contact Section --- */
.contact-section {
  text-align: center;
}

.contact-section .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.contact-amount {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 32px;
}

/* --- Footer --- */
.footer {
  background: var(--bg-dark);
  padding: 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-text {
  font-size: 0.875rem;
  color: var(--text-muted-on-dark);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted-on-dark);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text-on-dark);
}

/* --- Privacy Callout --- */
.privacy-callout {
  background: rgba(22, 163, 74, 0.08);
  border: 1px solid rgba(22, 163, 74, 0.2);
  border-radius: var(--radius);
  padding: 24px 32px;
  margin-top: 40px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.privacy-callout .callout-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.privacy-callout p {
  font-size: 0.9375rem;
}

/* --- Phase Labels --- */
.phase-block {
  margin-bottom: 32px;
}

.phase-label {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.phase-block h3 {
  margin-bottom: 8px;
}

.phase-block p {
  font-size: 1rem;
  color: var(--text-muted);
}

.phase-block ul {
  margin-top: 8px;
  padding-left: 20px;
}

.phase-block ul li {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

/* --- Animations --- */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive: Tablet --- */
@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  section { padding: 64px 0; }

  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }

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

  .flow { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }

  .timeline { flex-direction: column; }

  .phone-showcase { gap: 32px; }
  .phone-frame { width: 220px; border-radius: 30px; padding: 10px; }
  .phone-screen { height: 390px; border-radius: 20px; }
  .phone-notch { width: 64px; height: 20px; top: 10px; }

  .nav-links { display: none; }
  .hamburger { display: flex; }

  /* Mobile nav */
  .nav-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-white);
    padding: 24px;
    gap: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  }

  .nav-open .hamburger span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-open .hamburger span:nth-child(2) { opacity: 0; }
  .nav-open .hamburger span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .footer .container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .data-table { font-size: 0.875rem; }
  .data-table th, .data-table td { padding: 10px 12px; }
}

/* --- Responsive: Small Phone --- */
@media (max-width: 480px) {
  h1 { font-size: 1.875rem; }
  .container { padding: 0 16px; }
  .hero { padding-top: calc(var(--nav-height) + 48px); padding-bottom: 64px; }
  .stat-number { font-size: 2.25rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn { width: 100%; text-align: center; }
  .store-badges { flex-direction: column; align-items: center; }
  .phone-frame { width: 200px; border-radius: 28px; padding: 8px; }
  .phone-screen { height: 350px; border-radius: 20px; }
  .phone-notch { width: 56px; height: 18px; top: 8px; }
}