/* ============================================================================
   INTERNET SECURITY & FINANCE — design system
   Navy/blue institutional palette, serif+sans+mono type pairing, and the
   "ledger rule" motif (a double hairline divider styled like ruled ledger
   paper) used throughout as the site's signature structural device.
   ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* Color tokens */
  --ink-navy: #0B1F33;
  --core-blue: #163A5F;
  --vault-blue: #2C5C8C;
  --signal-blue: #3B7DD8;
  --paper-white: #FFFFFF;
  --paper-tint: #F5F8FC;
  --graphite: #8A94A6;
  --graphite-light: #D9DEE7;
  --ledger-green: #1A7A4C;
  --ledger-red: #B3261E;
  --ledger-amber: #9A6A12;

  /* Type */
  --font-display: 'Source Serif 4', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Layout */
  --max-width: 1140px;
  --radius: 6px;
  --shadow-card: 0 2px 4px rgba(11, 31, 51, 0.06), 0 8px 24px rgba(11, 31, 51, 0.06);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--ink-navy);
}

h1 { font-size: clamp(2.1rem, 4vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; color: #2B3A4D; }

a { color: var(--signal-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.mono { font-family: var(--font-mono); letter-spacing: 0.01em; }

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

/* Visible keyboard focus everywhere — never remove this for a financial product */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--signal-blue);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

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

.section { padding: 64px 0; }
.section--tint { background: var(--paper-tint); }

/* ----------------------------------------------------------------------
   The ledger rule — signature divider styled like ruled ledger paper.
   A heavier line above a lighter hairline, with consistent spacing.
   ---------------------------------------------------------------------- */
.ledger-rule {
  height: 5px;
  border: none;
  margin: 0;
  background: linear-gradient(
    to bottom,
    var(--core-blue) 0 2px,
    transparent 2px 3px,
    var(--graphite-light) 3px 5px
  );
}

.ledger-rule--light {
  height: 4px;
  background: linear-gradient(
    to bottom,
    var(--graphite-light) 0 1px,
    transparent 1px 2px,
    var(--graphite-light) 2px 3px,
    transparent 3px 4px
  );
}

/* ----------------------------------------------------------------------
   Header / Nav
   ---------------------------------------------------------------------- */
.utility-bar {
  background: var(--ink-navy);
  color: #C9D4E2;
  font-size: 0.78rem;
  letter-spacing: 0.03em;
}
.utility-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 7px;
  padding-bottom: 7px;
}
.utility-bar a { color: #C9D4E2; }

.site-header {
  background: var(--paper-white);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink-navy);
}
.brand img { height: 44px; width: 44px; }
.brand .wordmark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.95rem;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.brand .wordmark small {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--graphite);
  text-transform: uppercase;
}
.brand:hover { text-decoration: none; }

.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a {
  color: var(--core-blue);
  font-weight: 500;
  font-size: 0.95rem;
}
.main-nav a:hover { color: var(--signal-blue); text-decoration: none; }
.main-nav a.active { color: var(--ink-navy); border-bottom: 2px solid var(--signal-blue); padding-bottom: 4px; }

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle svg { width: 26px; height: 26px; }

/* ----------------------------------------------------------------------
   Buttons
   ---------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 11px 22px;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--core-blue); color: #fff; }
.btn-primary:hover { background: var(--ink-navy); }
.btn-secondary { background: transparent; color: var(--core-blue); border-color: var(--core-blue); }
.btn-secondary:hover { background: var(--paper-tint); }
.btn-ghost { background: transparent; color: var(--core-blue); }
.btn-ghost:hover { background: var(--paper-tint); }
.btn-danger { background: var(--ledger-red); color: #fff; }
.btn-danger:hover { background: #8f1d17; }
.btn-block { width: 100%; }
.btn-sm { padding: 7px 14px; font-size: 0.82rem; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* ----------------------------------------------------------------------
   Cards
   ---------------------------------------------------------------------- */
.card {
  background: #fff;
  border: 1px solid var(--graphite-light);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card { padding: 4px; }
.feature-card .icon {
  width: 44px; height: 44px;
  color: var(--signal-blue);
  margin-bottom: 14px;
}
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--graphite); margin-bottom: 0; }

/* ----------------------------------------------------------------------
   Hero
   ---------------------------------------------------------------------- */
.hero {
  padding: 72px 0 56px;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--vault-blue);
  margin-bottom: 14px;
  display: block;
}
.hero h1 { margin-bottom: 18px; }
.hero p.lead { font-size: 1.1rem; color: var(--graphite); max-width: 460px; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; }

/* ----------------------------------------------------------------------
   Forms
   ---------------------------------------------------------------------- */
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--core-blue);
}
.field .hint { font-size: 0.78rem; color: var(--graphite); margin-top: 4px; }
.field .error-text { font-size: 0.78rem; color: var(--ledger-red); margin-top: 4px; display: none; }
.field.has-error .error-text { display: block; }
.field.has-error input,
.field.has-error select { border-color: var(--ledger-red); }

input[type="text"], input[type="email"], input[type="password"],
input[type="date"], input[type="number"], input[type="tel"],
select, textarea {
  width: 100%;
  padding: 11px 13px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1.5px solid var(--graphite-light);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink-navy);
}
input:focus, select:focus, textarea:focus { border-color: var(--signal-blue); }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.file-drop {
  border: 1.5px dashed var(--graphite-light);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
  background: var(--paper-tint);
  cursor: pointer;
}
.file-drop.has-file { border-color: var(--signal-blue); background: #EEF4FC; }
.file-drop input { display: none; }
.file-drop .filename { font-family: var(--font-mono); font-size: 0.82rem; color: var(--core-blue); margin-top: 6px; }

/* Step indicator for the (genuinely sequential) account-opening flow */
.steps {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0 0 36px;
  gap: 6px;
}
.steps li {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--graphite);
  padding-bottom: 12px;
  border-bottom: 3px solid var(--graphite-light);
}
.steps li.active { color: var(--ink-navy); border-bottom-color: var(--signal-blue); font-weight: 600; }
.steps li.done { color: var(--core-blue); border-bottom-color: var(--core-blue); }

.form-step { display: none; }
.form-step.active { display: block; }

/* ----------------------------------------------------------------------
   Alerts / banners / badges
   ---------------------------------------------------------------------- */
.alert {
  padding: 14px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: 20px;
  border: 1px solid transparent;
}
.alert-info { background: #EEF4FC; color: var(--core-blue); border-color: #CFE0F5; }
.alert-success { background: #EAF6EE; color: var(--ledger-green); border-color: #CDEBD8; }
.alert-error { background: #FCEDEC; color: var(--ledger-red); border-color: #F6D2CF; }
.alert-warning { background: #FBF3E6; color: var(--ledger-amber); border-color: #F0DEB8; }

.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 99px;
  font-weight: 600;
}
.badge-active, .badge-approved, .badge-completed { background: #EAF6EE; color: var(--ledger-green); }
.badge-pending, .badge-pending_review { background: #FBF3E6; color: var(--ledger-amber); }
.badge-rejected, .badge-frozen, .badge-failed { background: #FCEDEC; color: var(--ledger-red); }
.badge-closed, .badge-not_submitted { background: #EEF0F4; color: var(--graphite); }

/* ----------------------------------------------------------------------
   Auth cards (login/signup shell)
   ---------------------------------------------------------------------- */
.auth-shell {
  min-height: calc(100vh - 140px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  background: var(--paper-tint);
}
.auth-card { width: 100%; max-width: 440px; }
.auth-card.wide { max-width: 720px; }
.auth-card .brand { justify-content: center; margin-bottom: 22px; }
.auth-card h1 { font-size: 1.5rem; text-align: center; }
.auth-card .subtitle { text-align: center; color: var(--graphite); margin-bottom: 28px; }

/* ----------------------------------------------------------------------
   Dashboard
   ---------------------------------------------------------------------- */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 24px;
  align-items: start;
}

.balance-card {
  background: var(--ink-navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 28px;
}
.balance-card .label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9FB2C9;
}
.balance-card .amount {
  font-family: var(--font-mono);
  font-size: 2.6rem;
  font-weight: 500;
  margin: 8px 0 4px;
}
.balance-card .account-number { color: #9FB2C9; font-family: var(--font-mono); font-size: 0.85rem; }

.dashboard-hero {
  background: linear-gradient(160deg, var(--core-blue) 0%, var(--ink-navy) 100%);
  padding: 16px 20px 28px;
  color: #fff;
}
.hero-topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.hamburger-btn { background: none; border: none; cursor: pointer; padding: 6px; color: #fff; }
.hamburger-btn svg { width: 26px; height: 26px; }
.hero-title { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; letter-spacing: 0.01em; }

.avatar-menu { position: relative; }
.avatar-btn { background: none; border: none; cursor: pointer; color: #fff; padding: 4px; }
.avatar-btn svg { width: 24px; height: 24px; }
.avatar-dropdown {
  display: none; position: absolute; top: 36px; right: 0; background: #fff;
  border-radius: var(--radius); box-shadow: var(--shadow-card); min-width: 200px; padding: 8px 0; z-index: 60;
}
.avatar-dropdown.open { display: block; }
.avatar-dropdown a, .avatar-dropdown button {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  background: none; border: none; padding: 10px 18px; font-size: 0.9rem;
  color: var(--ink-navy); cursor: pointer; font-family: var(--font-body);
}
.avatar-dropdown a:hover, .avatar-dropdown button:hover { background: var(--paper-tint); text-decoration: none; }
.avatar-dropdown hr { border: none; border-top: 1px solid var(--graphite-light); margin: 6px 0; }

.welcome-block { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.welcome-avatar {
  width: 52px; height: 52px; border-radius: 50%; background: var(--signal-blue); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; flex-shrink: 0;
}
.welcome-label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: #B9C7DA; }
.welcome-name { font-family: var(--font-display); font-weight: 600; font-size: 1.3rem; }

.accounts-container { display: flex; gap: 14px; overflow-x: auto; padding-bottom: 4px; }
.accounts-container .balance-card {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18);
  min-width: 260px; flex-shrink: 0;
}
.accounts-container .balance-card .totals-row {
  display: flex; gap: 24px; margin-top: 14px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,0.15);
}
.accounts-container .balance-card .totals-row div { flex: 1; }
.accounts-container .balance-card .totals-row .t-label { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.05em; text-transform: uppercase; color: #9FB2C9; }
.accounts-container .balance-card .totals-row .t-value { font-family: var(--font-mono); font-size: 0.95rem; margin-top: 2px; }

.icon-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px 12px;
  background: #fff; border: 1px solid var(--graphite-light); border-radius: var(--radius);
  padding: 24px 12px; margin-top: 4px; box-shadow: var(--shadow-card);
}
.icon-grid-item {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  background: none; border: none; cursor: pointer;
  font-family: var(--font-body); font-size: 0.82rem; color: var(--ink-navy); font-weight: 500;
}
.icon-grid-item .icon-circle {
  width: 52px; height: 52px; border-radius: 12px; background: var(--core-blue); color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.icon-grid-item .icon-circle svg { width: 24px; height: 24px; }
.icon-grid-item:hover .icon-circle { background: var(--ink-navy); }

.slide-nav-backdrop { display: none; position: fixed; inset: 0; background: rgba(11,31,51,0.5); z-index: 90; }
.slide-nav-backdrop.open { display: block; }
.slide-nav {
  position: fixed; top: 0; left: 0; bottom: 0; width: 280px; max-width: 84vw;
  background: #fff; z-index: 95; transform: translateX(-100%);
  transition: transform 0.2s ease; overflow-y: auto; padding: 20px 0;
}
.slide-nav.open { transform: translateX(0); }
.slide-nav-header { display: flex; justify-content: space-between; align-items: center; padding: 0 20px 16px; }
.slide-nav-close { background: none; border: none; cursor: pointer; font-size: 1.3rem; color: var(--graphite); }
.slide-nav-section-label {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--graphite); padding: 16px 20px 8px;
}
.slide-nav a, .slide-nav button.slide-nav-link {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  padding: 11px 20px; font-size: 0.92rem; color: var(--core-blue); font-weight: 500;
  background: none; border: none; cursor: pointer; font-family: var(--font-body);
}
.slide-nav a:hover, .slide-nav button.slide-nav-link:hover { background: var(--paper-tint); text-decoration: none; }
.slide-nav a.active { color: var(--signal-blue); }
.slide-nav svg { width: 18px; height: 18px; flex-shrink: 0; }

.tx-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.tx-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--graphite);
  padding: 0 10px 10px;
}
.tx-table td { padding: 12px 10px; border-top: 1px solid var(--graphite-light); }
.tx-table tr:first-child td { border-top: none; }
.tx-amount { font-family: var(--font-mono); text-align: right; white-space: nowrap; }
.tx-amount.credit { color: var(--ledger-green); }
.tx-amount.debit { color: var(--ink-navy); }

.tab-bar { display: flex; gap: 4px; border-bottom: 2px solid var(--graphite-light); margin-bottom: 24px; flex-wrap: wrap; }
.tab-btn {
  background: none; border: none; cursor: pointer;
  padding: 10px 16px; font-family: var(--font-body); font-weight: 600;
  font-size: 0.9rem; color: var(--graphite); border-bottom: 3px solid transparent; margin-bottom: -2px;
}
.tab-btn.active { color: var(--ink-navy); border-bottom-color: var(--signal-blue); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(11,31,51,0.55);
  display: none; align-items: center; justify-content: center; z-index: 100; padding: 24px;
}
.modal-backdrop.open { display: flex; }
.modal { background: #fff; border-radius: var(--radius); padding: 28px; max-width: 560px; width: 100%; max-height: 85vh; overflow-y: auto; }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.modal-close { background: none; border: none; cursor: pointer; font-size: 1.4rem; line-height: 1; color: var(--graphite); }

/* ----------------------------------------------------------------------
   Footer
   ---------------------------------------------------------------------- */
.site-footer {
  background: var(--ink-navy);
  color: #C9D4E2;
  padding: 48px 0 28px;
  margin-top: 64px;
}
.site-footer h4 { color: #fff; font-size: 0.9rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.footer-grid a { color: #AEBCD0; display: block; margin-bottom: 8px; font-size: 0.9rem; }
.footer-grid a:hover { color: #fff; }
.footer-bottom {
  margin-top: 36px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.8rem; color: #8499B5; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

/* WhatsApp floating button */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);
  z-index: 60;
}
.whatsapp-float svg { width: 28px; height: 28px; fill: #fff; }

/* ----------------------------------------------------------------------
   Responsive
   ---------------------------------------------------------------------- */
@media (max-width: 900px) {
  .feature-grid { grid-template-columns: 1fr; }
  .hero .container { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 280px; margin: 0 auto; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav, .nav-actions .btn-secondary-desktop { display: none; }
  .nav-toggle { display: inline-flex; }
  .field-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

.mobile-nav {
  display: none;
  flex-direction: column;
  background: #fff;
  border-top: 1px solid var(--graphite-light);
  padding: 10px 24px 18px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a { padding: 10px 0; color: var(--core-blue); font-weight: 500; border-bottom: 1px solid var(--paper-tint); }