/* ============================================================
   Filvy — shared stylesheet
   Dark-first, Revolut-inspired. System fonts only. No deps.
   ============================================================ */

:root {
  --bg:              #191c1f;
  --surface:         #20252a;
  --surface-pressed: #2a3036;
  --border:          #2a3036;
  --text:            #ffffff;
  --text-2:          #8d969e;
  --text-3:          #505a63;
  --accent:          #494fdf;
  --accent-pressed:  #3a40b0;
  --success:         #00a87e;
  --ghost-bg:        rgba(244, 244, 244, 0.08);
  --ghost-border:    rgba(244, 244, 244, 0.16);

  --r-pill: 9999px;
  --r-card: 20px;
  --r-chip: 12px;

  --s-1: 4px;
  --s-2: 8px;
  --s-3: 14px;
  --s-4: 16px;
  --s-5: 20px;
  --s-6: 24px;
  --s-7: 32px;
  --s-8: 48px;
  --s-9: 80px;

  --maxw: 720px;

  --ff: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto,
        "Helvetica Neue", Arial, "Noto Sans", sans-serif,
        "Apple Color Emoji", "Segoe UI Emoji";
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff);
  font-size: 17px;
  line-height: 1.55;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 120ms ease, border-color 120ms ease;
}
a:hover { color: #6a6fe8; border-bottom-color: currentColor; }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--accent); color: #fff; }

/* ---------- Layout shell ---------- */

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--s-6);
}

/* ---------- Landing (index) ---------- */

.landing {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.landing-main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: var(--s-8) 0;
}

.logo-row {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  margin-bottom: var(--s-8);
}
.logo-mark { width: 56px; height: 56px; border-radius: 14px; }
.logo-word {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.display {
  font-size: clamp(36px, 7vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 500;
  margin: 0 0 var(--s-3) 0;
  max-width: 18ch;
  text-wrap: balance;
}
.display-en {
  color: var(--text-2);
  font-weight: 500;
  margin-top: var(--s-2);
}

.subline {
  font-size: 18px;
  color: var(--text-2);
  margin: var(--s-6) 0 var(--s-7) 0;
  letter-spacing: 0.01em;
}
.subline .sep {
  color: var(--text-3);
  margin: 0 var(--s-2);
}
.subline-en { display: block; color: var(--text-3); margin-top: 2px; }

/* App Store pill badge (self-drawn, no external asset) */
.appstore {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: 12px 22px;
  border-radius: var(--r-pill);
  background: var(--ghost-bg);
  border: 1px solid var(--ghost-border);
  color: var(--text);
  font-size: 15px;
  letter-spacing: 0.01em;
  transition: background 120ms ease, border-color 120ms ease;
}
.appstore:hover {
  background: var(--surface-pressed);
  border-color: var(--text-3);
  color: var(--text);
}
.appstore-icon { width: 22px; height: 22px; flex: 0 0 auto; }
.appstore-sub { display: block; font-size: 11px; color: var(--text-2); letter-spacing: 0.06em; text-transform: uppercase; }
.appstore-main { display: block; font-size: 17px; font-weight: 500; line-height: 1.1; }

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

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--s-6) 0;
  color: var(--text-2);
  font-size: 14px;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4) var(--s-6);
  align-items: center;
  justify-content: space-between;
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-5);
}
.site-footer a {
  color: var(--text-2);
  border-bottom-color: transparent;
}
.site-footer a:hover { color: var(--text); }

/* ---------- Document pages (privacy / terms) ---------- */

.doc-header {
  border-bottom: 1px solid var(--border);
  padding: var(--s-5) 0;
  position: sticky;
  top: 0;
  background: rgba(25, 28, 31, 0.85);
  backdrop-filter: saturate(1.2) blur(10px);
  -webkit-backdrop-filter: saturate(1.2) blur(10px);
  z-index: 10;
}
.doc-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 500;
  letter-spacing: -0.01em;
  border-bottom: none;
}
.brand:hover { color: var(--text); border-bottom: none; }
.brand-mark { width: 28px; height: 28px; border-radius: 7px; }

.lang-toggle {
  display: inline-flex;
  gap: var(--s-1);
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-chip);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.lang-toggle a {
  color: var(--text-2);
  padding: 6px 12px;
  border-radius: 8px;
  border-bottom: none;
  font-weight: 500;
}
.lang-toggle a:hover {
  color: var(--text);
  background: var(--surface-pressed);
  border-bottom: none;
}

.doc {
  padding: var(--s-8) 0 var(--s-9);
}

.doc section + section {
  margin-top: var(--s-9);
  padding-top: var(--s-8);
  border-top: 1px solid var(--border);
}

.doc h1 {
  font-size: clamp(32px, 5vw, 42px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 var(--s-4) 0;
  text-wrap: balance;
}
.doc h2 {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: var(--s-8) 0 var(--s-4) 0;
  scroll-margin-top: 80px;
}
.doc h3 {
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  margin: var(--s-6) 0 var(--s-2) 0;
}
.doc p { margin: 0 0 var(--s-4) 0; color: var(--text); }
.doc ul { padding-left: 1.25em; margin: 0 0 var(--s-4) 0; }
.doc li { margin-bottom: 6px; }
.doc li::marker { color: var(--text-3); }

.doc strong { font-weight: 500; color: var(--text); }

.meta {
  color: var(--text-2);
  font-size: 14px;
  margin-bottom: var(--s-6);
}
.meta span + span::before {
  content: "·";
  margin: 0 10px;
  color: var(--text-3);
}

.section-anchor {
  position: relative;
  top: -80px;
  display: block;
  height: 0;
  visibility: hidden;
}

/* Tables */
.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--s-5) 0 var(--s-6);
  font-size: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-chip);
  overflow: hidden;
}
.doc thead th {
  text-align: left;
  font-weight: 500;
  color: var(--text);
  background: var(--surface-pressed);
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.02em;
  font-size: 12px;
  text-transform: uppercase;
}
.doc tbody td {
  padding: 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--text-2);
}
.doc tbody td:first-child {
  color: var(--text);
  white-space: nowrap;
}
.doc tbody tr:last-child td { border-bottom: none; }

.table-scroll {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--r-chip);
}

/* Small "chip" for yes/no cells */
.chip {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--r-pill);
  font-size: 12px;
  letter-spacing: 0.03em;
  background: var(--ghost-bg);
  border: 1px solid var(--ghost-border);
  color: var(--text);
}
.chip-no {
  background: transparent;
  color: var(--text-3);
  border-color: var(--border);
}

code, .mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
               "Liberation Mono", monospace;
  font-size: 0.9em;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 6px;
  color: var(--text);
}

/* Terms page CTA card */
.cta-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  padding: var(--s-6);
  margin: var(--s-5) 0;
}
.cta-card p { margin-bottom: var(--s-4); color: var(--text); }
.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--r-pill);
  font-weight: 500;
  letter-spacing: 0.01em;
  border-bottom: none;
  word-break: break-all;
  transition: background 120ms ease;
}
.cta-link:hover {
  background: var(--accent-pressed);
  color: #fff;
  border-bottom: none;
}
.cta-link .arrow { transition: transform 150ms ease; }
.cta-link:hover .arrow { transform: translateX(3px); }

/* Inline footnote under a CTA card (used on terms page). */
.footnote {
  color: var(--text-3);
  font-size: 14px;
  margin-top: var(--s-7);
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
  html, body { font-size: 16px; }
  .wrap { padding: 0 var(--s-5); }
  .logo-row { margin-bottom: var(--s-7); }
  .doc { padding: var(--s-7) 0 var(--s-8); }
  .doc table { font-size: 13px; }
  .doc thead th,
  .doc tbody td { padding: 10px; }
  .site-footer .wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--s-4);
  }
}

/* ---------- Print ---------- */
@media print {
  :root {
    --bg: #ffffff;
    --surface: #ffffff;
    --surface-pressed: #f4f4f4;
    --border: #d0d0d0;
    --text: #000000;
    --text-2: #333333;
    --text-3: #666666;
  }
  html, body {
    background: #fff !important;
    color: #000 !important;
  }
  a { color: #000 !important; border-bottom: none !important; }
  .doc-header, .site-footer, .lang-toggle { display: none !important; }
  .doc { padding: 0 !important; }
  .doc h1, .doc h2, .doc h3 { color: #000 !important; page-break-after: avoid; }
  .doc table {
    background: #fff !important;
    border: 1px solid #999 !important;
    page-break-inside: avoid;
  }
  .doc thead th {
    background: #eee !important;
    color: #000 !important;
    border-bottom: 1px solid #999 !important;
  }
  .doc tbody td {
    color: #000 !important;
    border-bottom: 1px solid #ccc !important;
  }
  .chip {
    background: transparent !important;
    border: 1px solid #999 !important;
    color: #000 !important;
  }
  .cta-card { border: 1px solid #999 !important; }
  .cta-link { background: transparent !important; color: #000 !important; padding: 0 !important; }
  section + section { page-break-before: always; }
}