/* ==========================================================================
   FadPay Next — components
   ========================================================================== */

/* Buttons ----------------------------------------------------------------- */
.btn {
  --btn-bg: var(--surface);
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-weight: 700; font-size: var(--fs-sm); line-height: 1;
  padding: .85rem 1.3rem; border-radius: var(--r-full);
  color: var(--text); background: var(--btn-bg);
  border: 1px solid var(--border);
  transition: transform var(--dur-1) var(--ease), box-shadow var(--dur-2) var(--ease),
              background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
  white-space: nowrap; user-select: none;
}
.btn svg { width: 1.1em; height: 1.1em; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  color: var(--on-brand); background: var(--grad-brand); border-color: transparent;
  box-shadow: var(--glow-brand);
}
.btn-primary:hover { box-shadow: 0 26px 70px -18px rgba(30,111,224,.7); }

.btn-dark { color:#fff; background: var(--grad-navy); border-color: transparent; box-shadow: var(--shadow-md); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }
.btn-outline { background: transparent; border-color: var(--border); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-soft { background: color-mix(in srgb, var(--brand) 12%, transparent); border-color: transparent; color: var(--brand); }
.btn-danger { color:#fff; background: var(--danger); border-color: transparent; }
.btn-lg { padding: 1.05rem 1.8rem; font-size: 1rem; }
.btn-sm { padding: .55rem .9rem; font-size: var(--fs-xs); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; pointer-events: none; }

.btn-link { color: var(--brand); font-weight: 700; display: inline-flex; align-items: center; gap: .4rem; }
.btn-link .arrow { transition: transform var(--dur-1) var(--ease); }
.btn-link:hover .arrow { transform: translateX(4px); }

/* Badges / pills ---------------------------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: var(--fs-xs); font-weight: 700; padding: .3rem .65rem; border-radius: var(--r-full);
  background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border);
}
.badge-brand   { background: var(--info-soft); color: var(--brand); border-color: transparent; }
.badge-success { background: var(--success-soft); color: var(--success); border-color: transparent; }
.badge-warning { background: var(--warning-soft); color: var(--warning); border-color: transparent; }
.badge-gold    { background: color-mix(in srgb, var(--gold) 20%, transparent); color: var(--gold); border-color: transparent; }
.badge-dot { width: .5rem; height: .5rem; border-radius: 50%; background: currentColor; }

/* Cards ------------------------------------------------------------------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}
.card-hover:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: color-mix(in srgb, var(--brand) 40%, var(--border)); }
.card-glass {
  background: var(--glass); border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%);
}
.card-pad-lg { padding: clamp(1.5rem, 3vw, 2.5rem); }

/* Feature icon tile ------------------------------------------------------- */
.icon-tile {
  width: 3.2rem; height: 3.2rem; border-radius: var(--r-md);
  /* flex centering, not grid: an implicit grid track can collapse to the glyph
     width and pin it left (seen on the send/code icons) — flex has no such
     track-sizing dependency, so every glyph centres identically. */
  display: flex; align-items: center; justify-content: center;
  flex: none; color: var(--on-brand);
  background: var(--grad-brand); box-shadow: var(--shadow-md);
}
.icon-tile svg { width: 1.5rem; height: 1.5rem; flex: none; display: block; }
.icon-tile.cyan { background: var(--grad-cyan); }
.icon-tile.green { background: var(--grad-qr); }
.icon-tile.gold { background: var(--grad-gold); color: #3a2c05; }
.icon-tile.navy { background: var(--grad-navy); }
.icon-tile.soft { background: color-mix(in srgb, var(--brand) 12%, transparent); color: var(--brand); box-shadow: none; }

.feature h3 { margin-top: 1.1rem; font-size: 1.2rem; }
.feature p { margin-top: .5rem; font-size: var(--fs-sm); }

/* Site header ------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(16px) saturate(150%); -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-2) var(--ease), background var(--dur-2) var(--ease);
}
.site-header.scrolled { border-bottom-color: var(--hairline); box-shadow: var(--shadow-sm); }
.site-header .container { display: flex; align-items: center; gap: 1.2rem; width: 100%; }
.nav-left { display: flex; align-items: center; gap: 2.2rem; }
.nav-links { display: flex; align-items: center; gap: .3rem; }
.nav-links a {
  font-size: var(--fs-sm); font-weight: 600; color: var(--text-2);
  padding: .5rem .8rem; border-radius: var(--r-full);
  transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: color-mix(in srgb, var(--text) 6%, transparent); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: .5rem; }

/* Brand logo -------------------------------------------------------------- */
.brand { display: inline-flex; align-items: center; gap: .55rem; }
.brand .logo-mark { width: 38px; height: auto; flex: none; display: block; }
.brand .wordmark { font-weight: 800; font-size: 1.28rem; letter-spacing: -.02em; color: var(--text); white-space: nowrap; }
.brand .wordmark .wm-pay { color: var(--brand); }
.brand .wordmark .wm-next { color: var(--brand); font-weight: 600; }
/* Reversed (solid white) logo mark on dark surfaces — the navy tail would
   otherwise disappear against a dark background. Applies in dark theme and on
   the always-navy auth panel; the white phone tab button keeps the colour mark. */
:root[data-theme="dark"] .brand .logo-mark,
.auth-aside .brand .logo-mark { filter: brightness(0) invert(1); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) .brand .logo-mark { filter: brightness(0) invert(1); }
}

/* Theme toggle ------------------------------------------------------------ */
.icon-btn {
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; color: var(--text-2);
  border: 1px solid var(--border); background: var(--surface);
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
}
.icon-btn:hover { color: var(--text); border-color: var(--brand); transform: translateY(-1px); }
.icon-btn svg { width: 1.15rem; height: 1.15rem; }
.theme-toggle .moon { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) .theme-toggle .sun { display: none; }
  :root:not([data-theme="light"]):not([data-theme="dark"]) .theme-toggle .moon { display: block; }
}

/* Language switch (dropdown) --------------------------------------------- */
.lang-switch { position: relative; }
.lang-switch > button { display: inline-flex; flex-flow: row nowrap; align-items: center; gap: .4rem; padding-inline: .8rem; width: auto; border-radius: var(--r-full); white-space: nowrap; }
.lang-switch > button svg { flex: none; }
.lang-switch > button [data-current-lang] { line-height: 1; }
.lang-switch .lang-menu {
  position: absolute; right: 0; top: calc(100% + .5rem); min-width: 190px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md);
  box-shadow: var(--shadow-lg); padding: .4rem; z-index: 120;
  opacity: 0; transform: translateY(-6px) scale(.98); pointer-events: none;
  transition: opacity var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
}
.lang-switch.open .lang-menu { opacity: 1; transform: none; pointer-events: auto; }
.lang-menu button {
  display: flex; align-items: center; gap: .6rem; width: 100%; text-align: left;
  padding: .55rem .7rem; border-radius: var(--r-sm); font-size: var(--fs-sm); font-weight: 600; color: var(--text-2);
}
.lang-menu button:hover { background: var(--surface-2); color: var(--text); }
.lang-menu button.active { color: var(--brand); background: var(--info-soft); }
.lang-menu .flag { font-size: 1.1rem; }
.lang-menu .check { margin-left: auto; opacity: 0; }
.lang-menu button.active .check { opacity: 1; }

/* Account dropdown (header, logged-out): one control that reveals sign in + get started */
.acct-switch { position: relative; }
.acct-switch > .js-dd-toggle { gap: .45rem; }
.acct-switch > .js-dd-toggle > svg:last-child { transition: transform var(--dur-1) var(--ease); }
.acct-switch.open > .js-dd-toggle > svg:last-child { transform: rotate(180deg); }
.acct-switch .acct-menu {
  position: absolute; right: 0; top: calc(100% + .5rem); min-width: 210px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md);
  box-shadow: var(--shadow-lg); padding: .4rem; z-index: 120; display: flex; flex-direction: column; gap: .25rem;
  opacity: 0; transform: translateY(-6px) scale(.98); pointer-events: none;
  transition: opacity var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
}
.acct-switch.open .acct-menu { opacity: 1; transform: none; pointer-events: auto; }
.acct-menu a {
  display: flex; align-items: center; gap: .6rem; width: 100%;
  padding: .6rem .75rem; border-radius: var(--r-sm); font-size: var(--fs-sm); font-weight: 700; color: var(--text-2);
}
.acct-menu a svg { flex: none; }
.acct-menu a:hover { background: var(--surface-2); color: var(--text); }
.acct-menu a.primary { background: var(--grad-brand); color: #fff; justify-content: center; box-shadow: var(--shadow-md); }
.acct-menu a.primary:hover { color: #fff; filter: brightness(1.06); }

/* Mobile menu ------------------------------------------------------------- */
.menu-btn { display: none; }
.mobile-menu {
  position: fixed; inset: var(--nav-h) 0 0 0; z-index: 90;
  background: var(--bg); padding: 1.5rem clamp(1.1rem,4vw,2rem) 3rem;
  transform: translateX(100%); transition: transform var(--dur-2) var(--ease);
  overflow-y: auto; display: flex; flex-direction: column; gap: .3rem;
}
.mobile-menu.open { transform: none; }
.mobile-menu a { padding: .9rem .4rem; font-size: 1.15rem; font-weight: 700; border-bottom: 1px solid var(--hairline); }
@media (max-width: 940px) {
  .nav-links, .nav-right .desktop-only { display: none; }
  .menu-btn { display: grid; }
}

/* Footer ------------------------------------------------------------------ */
.site-footer { background: var(--bg-2); border-top: 1px solid var(--hairline); padding-block: clamp(3rem,6vw,5rem) 2rem; margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 2rem; }
@media (max-width: 960px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-col h4 { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .1em; color: var(--text-3); margin-bottom: .9rem; font-weight: 800; }
.footer-col a { display: block; color: var(--text-2); font-size: var(--fs-sm); padding: .3rem 0; }
.footer-col a:hover { color: var(--brand); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--hairline); color: var(--text-3); font-size: var(--fs-xs); }
.footer-brand p { margin: 1rem 0 1.4rem; max-width: 34ch; font-size: var(--fs-sm); }
.social-row { display: flex; gap: .5rem; }

/* Marquee / trust bar ----------------------------------------------------- */
.trust-strip { border-block: 1px solid var(--hairline); padding-block: 1.4rem; }
.trust-row { display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.trust-row .logo-word { font-weight: 800; font-size: 1.1rem; color: var(--text-2); letter-spacing: -.01em; }

/* Stat counters ----------------------------------------------------------- */
.stat .num { font-size: clamp(2rem, 1.4rem + 2.4vw, 3.2rem); font-weight: 800; letter-spacing: -.03em; color: var(--text); line-height: 1; }
.stat .num .unit { color: var(--brand); }
.stat .label { margin-top: .5rem; color: var(--text-2); font-size: var(--fs-sm); }

/* Accordion (FAQ) --------------------------------------------------------- */
.accordion-item { border-bottom: 1px solid var(--hairline); }
.accordion-item > button { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem 0; text-align: left; font-weight: 700; font-size: 1.05rem; color: var(--text); }
.accordion-item .plus { flex: none; width: 1.6rem; height: 1.6rem; border-radius: 50%; display: grid; place-items: center; background: var(--surface-2); transition: transform var(--dur-2) var(--ease), background var(--dur-1) var(--ease); }
.accordion-item[open] .plus { transform: rotate(45deg); background: var(--brand); color: #fff; }
.accordion-item .panel { overflow: hidden; max-height: 0; transition: max-height var(--dur-3) var(--ease); }
.accordion-item[open] .panel { max-height: 340px; }
.accordion-item .panel p { padding-bottom: 1.25rem; color: var(--text-2); }

/* Forms ------------------------------------------------------------------- */
.field { display: flex; flex-direction: column; gap: .45rem; margin-bottom: 1.1rem; }
.field label { font-size: var(--fs-sm); font-weight: 700; color: var(--text); }
.field .input, .field input, .field select, .field textarea {
  width: 100%; padding: .9rem 1rem; border-radius: var(--r-md);
  background: var(--field); border: 1px solid var(--border); color: var(--text);
  transition: border-color var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-3); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 18%, transparent);
  background: var(--surface);
}
.field .hint { font-size: var(--fs-xs); color: var(--text-3); }
.field .err { font-size: var(--fs-xs); color: var(--danger); font-weight: 600; }
.field.has-error input, .field.has-error select { border-color: var(--danger); }
.input-icon { position: relative; }
.input-icon svg { position: absolute; left: .95rem; top: 50%; transform: translateY(-50%); width: 1.15rem; height: 1.15rem; color: var(--text-3); }
.input-icon input { padding-left: 2.7rem; }

/* Segmented account-type selector ---------------------------------------- */
.segmented { display: grid; gap: .75rem; }
.segmented.cols-3 { grid-template-columns: repeat(3,1fr); }
@media (max-width: 620px){ .segmented.cols-3 { grid-template-columns: 1fr; } }
.seg-option { position: relative; }
.seg-option input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.seg-option .seg-card {
  border: 1.5px solid var(--border); border-radius: var(--r-md); padding: 1rem;
  display: flex; gap: .8rem; align-items: flex-start; transition: all var(--dur-1) var(--ease); height: 100%;
}
.seg-option .seg-card .ic { width: 2.4rem; height: 2.4rem; border-radius: var(--r-sm); display: grid; place-items: center; background: var(--surface-2); color: var(--brand); flex: none; }
.seg-option .seg-card h4 { font-size: .98rem; }
.seg-option .seg-card p { font-size: var(--fs-xs); margin-top: .15rem; }
.seg-option input:checked + .seg-card { border-color: var(--brand); background: color-mix(in srgb, var(--brand) 8%, transparent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 12%, transparent); }
.seg-option input:checked + .seg-card .ic { background: var(--grad-brand); color: #fff; }
.seg-option input:focus-visible + .seg-card { outline: 3px solid color-mix(in srgb, var(--brand) 55%, transparent); outline-offset: 2px; }

/* Flash / toast ----------------------------------------------------------- */
.flash-stack { position: fixed; top: calc(var(--nav-h) + 12px); right: 16px; z-index: 300; display: flex; flex-direction: column; gap: .6rem; max-width: min(92vw, 380px); }
.flash {
  display: flex; gap: .7rem; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--brand);
  border-radius: var(--r-md); padding: .85rem 1rem; box-shadow: var(--shadow-lg);
  animation: flashIn .4s var(--ease-spring) both;
}
.flash.success { border-left-color: var(--success); }
.flash.error   { border-left-color: var(--danger); }
.flash.info    { border-left-color: var(--brand); }
.flash .fx { flex: none; color: var(--brand); }
.flash.success .fx { color: var(--success); } .flash.error .fx { color: var(--danger); }
.flash p { color: var(--text); font-size: var(--fs-sm); font-weight: 600; }
.flash button { margin-left: auto; color: var(--text-3); }
@keyframes flashIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }

/* Tabs -------------------------------------------------------------------- */
.tabs { display: inline-flex; gap: .2rem; padding: .3rem; background: var(--surface-2); border-radius: var(--r-full); border: 1px solid var(--border); }
.tabs button { padding: .5rem 1rem; border-radius: var(--r-full); font-size: var(--fs-sm); font-weight: 700; color: var(--text-2); }
.tabs button.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow-sm); }

/* Logo cloud dots decoration --------------------------------------------- */
.bg-dots { background-image: radial-gradient(color-mix(in srgb, var(--text) 8%, transparent) 1px, transparent 1px); background-size: 22px 22px; }