/* ============================================================
   Formal — marketing site styles
   Palette matches the app exactly (see frontend/lib/theme/app_colors.dart):
   black / white / "money green" fintech.
   ============================================================ */

:root {
  --color-black: #0a0a0a;
  --color-white: #ffffff;

  --color-green: #16a34a;
  --color-green-dark: #0f7a38;
  --color-green-light: #d1f2de;

  --neutral-50: #fafafa;
  --neutral-100: #f2f3f2;
  --neutral-200: #e4e6e5;
  --neutral-300: #c9cccb;
  --neutral-500: #7a7f7d;
  --neutral-700: #3a3d3c;
  --neutral-900: #141514;

  --warning: #d97706;
  --warning-bg: #fef3e2;

  --max-width: 1120px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(10, 10, 10, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 10, 10, 0.08);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-black);
  background: var(--color-white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--neutral-200);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.2px;
  text-decoration: none;
  color: var(--color-black);
}

.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  object-fit: cover;
  display: block;
}

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

.main-nav a {
  text-decoration: none;
  color: var(--neutral-700);
  font-weight: 600;
  font-size: 15px;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-black);
}

.nav-cta {
  background: var(--color-black) !important;
  color: var(--color-white) !important;
  padding: 10px 18px;
  border-radius: 999px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-black);
  position: relative;
  transition: transform 0.2s ease;
}

.nav-toggle span::before {
  position: absolute;
  top: -7px;
}

.nav-toggle span::after {
  position: absolute;
  top: 7px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 24px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--color-green);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-green-dark);
}

.btn-dark {
  background: var(--color-black);
  color: var(--color-white);
}

.btn-dark:hover {
  background: var(--neutral-900);
}

.btn-outline {
  background: transparent;
  color: var(--color-black);
  border-color: var(--neutral-300);
}

.btn-outline:hover {
  border-color: var(--color-black);
}

.btn-disabled,
.btn[aria-disabled="true"] {
  background: var(--neutral-100);
  color: var(--neutral-500);
  border-color: var(--neutral-200);
  cursor: not-allowed;
  pointer-events: none;
}

.btn-block {
  width: 100%;
}

/* ---------- Hero ---------- */

.hero {
  padding: 72px 0 56px;
  background: linear-gradient(180deg, var(--color-green-light) 0%, rgba(209, 242, 222, 0) 60%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-green-dark);
  background: var(--color-green-light);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}

.hero p.lead {
  font-size: 18px;
  color: var(--neutral-700);
  margin: 0 0 28px;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-visual {
  position: relative;
}

.phone-mock {
  background: var(--color-black);
  border-radius: 36px;
  padding: 14px;
  box-shadow: var(--shadow-md);
  max-width: 300px;
  margin: 0 auto;
}

.phone-screen {
  background: var(--color-white);
  border-radius: 24px;
  padding: 22px 18px;
  min-height: 460px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.phone-screen .ps-balance-label {
  font-size: 13px;
  color: var(--neutral-500);
  font-weight: 600;
}

.phone-screen .ps-balance {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.phone-screen .ps-qr {
  margin-top: 8px;
  align-self: center;
  width: 150px;
  height: 150px;
  border-radius: 16px;
  background: repeating-linear-gradient(
      45deg,
      var(--color-black) 0 8px,
      transparent 8px 16px
    ),
    var(--color-white);
  background-blend-mode: multiply;
  border: 10px solid var(--color-white);
  outline: 1px solid var(--neutral-200);
}

.phone-screen .ps-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-top: 1px solid var(--neutral-100);
  font-size: 14px;
}

.phone-screen .ps-row strong {
  font-size: 14px;
}

.phone-screen .ps-pill {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-green-dark);
  background: var(--color-green-light);
  padding: 3px 10px;
  border-radius: 999px;
}

/* ---------- Sections ---------- */

.section {
  padding: 72px 0;
}

.section-alt {
  background: var(--neutral-50);
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-head h2 {
  font-size: clamp(26px, 4vw, 36px);
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.section-head p {
  color: var(--neutral-700);
  font-size: 16px;
  margin: 0;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

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

.card {
  background: var(--color-white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-green-light);
  color: var(--color-green-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 22px;
}

.card h3 {
  font-size: 18px;
  margin: 0 0 8px;
}

.card p {
  color: var(--neutral-700);
  font-size: 15px;
  margin: 0;
}

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

.step {
  position: relative;
  padding-top: 8px;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-black);
  color: var(--color-white);
  font-weight: 700;
  margin-bottom: 16px;
}

.step h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.step p {
  margin: 0;
  color: var(--neutral-700);
  font-size: 15px;
}

.cta-band {
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
}

.cta-band h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 4vw, 32px);
}

.cta-band p {
  margin: 0 0 28px;
  color: var(--neutral-300);
}

/* ---------- Download page ---------- */

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

.download-card {
  background: var(--color-white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.download-card .platform-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--neutral-100);
  color: var(--color-black);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 18px;
}

.download-card h3 {
  margin: 0 0 6px;
  font-size: 19px;
}

.download-card .status-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.status-badge.coming-soon {
  color: var(--warning);
  background: var(--warning-bg);
}

.status-badge.available {
  color: var(--color-green-dark);
  background: var(--color-green-light);
}

.download-card p.desc {
  color: var(--neutral-700);
  font-size: 14px;
  margin: 0 0 22px;
  min-height: 42px;
}

.fine-print {
  font-size: 13px;
  color: var(--neutral-500);
  margin-top: 14px;
}

.notice-box {
  display: flex;
  gap: 14px;
  background: var(--neutral-50);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  margin-top: 40px;
}

.notice-box .notice-icon {
  font-size: 18px;
  color: var(--color-green-dark);
}

.notice-box h4 {
  margin: 0 0 6px;
  font-size: 15px;
}

.notice-box p {
  margin: 0;
  font-size: 14px;
  color: var(--neutral-700);
}

/* ---------- Legal pages ---------- */

.legal-page .container {
  max-width: 800px;
}

.legal-header {
  padding: 56px 0 24px;
  border-bottom: 1px solid var(--neutral-200);
}

.legal-header h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 38px);
}

.legal-header .updated {
  color: var(--neutral-500);
  font-size: 14px;
}

.draft-banner {
  display: flex;
  gap: 12px;
  background: var(--warning-bg);
  border: 1px solid #f3d9ad;
  color: #7a4a05;
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin: 24px 0 0;
  font-size: 14px;
}

.legal-body {
  padding: 40px 0 80px;
}

.legal-body h2 {
  font-size: 20px;
  margin: 40px 0 12px;
}

.legal-body h2:first-child {
  margin-top: 0;
}

.legal-body p,
.legal-body li {
  color: var(--neutral-700);
  font-size: 15px;
}

.legal-body ul {
  padding-left: 20px;
}

.legal-body a {
  color: var(--color-green-dark);
  font-weight: 600;
}

.placeholder {
  background: var(--color-green-light);
  color: var(--color-green-dark);
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 600;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--neutral-900);
  color: var(--neutral-300);
  padding: 56px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--neutral-700);
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--neutral-500);
  font-size: 14px;
  max-width: 32ch;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 14px;
  margin: 0 0 14px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.footer-col a {
  color: var(--neutral-300);
  text-decoration: none;
  font-size: 14px;
}

.footer-col a:hover {
  color: var(--color-white);
}

.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--neutral-500);
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .grid-3,
  .steps,
  .download-grid {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--neutral-200);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px;
    gap: 16px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.18s ease, opacity 0.18s ease;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-cta {
    text-align: center;
  }

  .nav-toggle {
    display: block;
  }
}