/* ═══════════════════════════════════════════════════════════
   SplitBot — styles.css
   Estrategia: mobile-first. Los estilos base son para móvil,
   los @media (min-width:…) agregan complejidad en pantallas mayores.
   ═══════════════════════════════════════════════════════════ */

/* ── Variables ─────────────────────────────────────────── */
:root {
  --clr-bg: #0d0d0d;
  --clr-surface: #161616;
  --clr-surface-2: #1f1f1f;
  --clr-border: #2a2a2a;
  --clr-accent: #f0e040;
  --clr-accent-dim: rgba(240, 224, 64, 0.12);
  --clr-green: #4ade80;
  --clr-green-dim: rgba(74, 222, 128, 0.12);
  --clr-red: #f87171;
  --clr-red-dim: rgba(248, 113, 113, 0.1);
  --clr-text: #f0f0f0;
  --clr-muted: #888;
  --clr-wa: #25D366;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,.4);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1100px;
  /* Espaciado responsive */
  --px: 1rem;
  --py: 1.5rem;
}
@media (min-width: 640px) {
  :root { --px: 1.5rem; --py: 2rem; }
}
@media (min-width: 1024px) {
  :root { --px: 2rem; }
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  min-height: 100dvh; /* dynamic viewport en móviles */
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
input, select, button, textarea { font-family: inherit; }
/* Evitar zoom en inputs en iOS */
input[type="text"],
input[type="number"],
input[type="email"],
select {
  font-size: max(16px, 1rem);
}

/* ── Header ────────────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--px);
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: 0;
  background: rgba(13,13,13,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
}
.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
@media (min-width: 640px) {
  .logo { font-size: 1.4rem; }
}
.logo-icon { font-size: 1.1rem; }

/* ── Main & Footer ─────────────────────────────────────── */
.main-content {
  flex: 1;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--py) var(--px) 4rem;
}
.site-footer {
  text-align: center;
  padding: 1.25rem var(--px);
  color: var(--clr-muted);
  font-size: 0.82rem;
  border-top: 1px solid var(--clr-border);
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.18s ease;
  white-space: nowrap;
  /* Área táctil mínima recomendada por Apple/Google: 44px */
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}
@media (min-width: 640px) {
  .btn { padding: 0.75rem 1.5rem; }
}
.btn-primary {
  background: var(--clr-accent);
  color: #0d0d0d;
  border-color: var(--clr-accent);
  font-weight: 700;
}
.btn-primary:hover { background: #e8d830; }
@media (hover: hover) {
  .btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(240,224,64,.3); }
}
.btn-wa {
  background: var(--clr-wa);
  color: #fff;
  font-weight: 700;
}
.btn-wa:hover { background: #1fb855; }
@media (hover: hover) {
  .btn-wa:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(37,211,102,.3); }
}
.btn-outline {
  background: transparent;
  color: var(--clr-text);
  border-color: var(--clr-border);
}
.btn-outline:hover { border-color: var(--clr-text); }
.btn-ghost {
  background: transparent;
  color: var(--clr-muted);
  border-color: transparent;
}
.btn-ghost:hover { color: var(--clr-text); background: var(--clr-surface-2); }
.btn--large { padding: 1rem 1.5rem; font-size: 1rem; min-height: 52px; }
@media (min-width: 640px) {
  .btn--large { padding: 1rem 2rem; font-size: 1.05rem; }
}
/* Botón full-width en móvil */
.btn--full-mobile {
  width: 100%;
}
@media (min-width: 480px) {
  .btn--full-mobile { width: auto; }
}

/* ── Flash ─────────────────────────────────────────────── */
.flash { padding: 0.9rem 1.1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.9rem; }
.flash--success { background: var(--clr-green-dim); border: 1px solid var(--clr-green); color: var(--clr-green); }
.flash--error { background: var(--clr-red-dim); border: 1px solid var(--clr-red); color: var(--clr-red); }

/* ── Hero (landing) ────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 3rem 0 2.5rem;
  max-width: 700px;
  margin: 0 auto;
}
@media (min-width: 640px) {
  .hero { padding: 5rem 1rem 4rem; }
}
.hero__badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  border: 1px solid var(--clr-border);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--clr-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 10vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}
.hero__accent { color: var(--clr-accent); }
.hero__sub {
  font-size: 1rem;
  color: var(--clr-muted);
  max-width: 480px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}
@media (min-width: 640px) {
  .hero__sub { font-size: 1.1rem; margin-bottom: 2.5rem; }
}
.hero__actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: stretch;
}
@media (min-width: 480px) {
  .hero__actions {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
  }
}
.hero__hint {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--clr-muted);
  line-height: 1.7;
}

/* ── How it works ──────────────────────────────────────── */
.how-it-works { margin: 3rem 0 2rem; }
@media (min-width: 640px) {
  .how-it-works { margin: 4rem 0 2rem; }
}
.section-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
@media (min-width: 640px) {
  .section-title { font-size: 1.4rem; margin-bottom: 2rem; }
}
.steps {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
@media (min-width: 640px) {
  .steps {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
  }
}
.step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  flex: 1;
}
@media (min-width: 640px) {
  .step { max-width: 220px; min-width: 160px; padding: 1.5rem; }
}
.step__num {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--clr-accent);
  color: #0d0d0d;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step__body h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.step__body p { font-size: 0.82rem; color: var(--clr-muted); margin: 0; }
.step__arrow { font-size: 1.5rem; color: var(--clr-border); flex-shrink: 0; display: none; }
@media (min-width: 640px) {
  .step__arrow { display: block; }
}

/* ── Feature cards ─────────────────────────────────────── */
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 3rem;
}
@media (min-width: 480px) {
  .features { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 900px) {
  .features { grid-template-columns: repeat(3, 1fr); margin-top: 4rem; }
}
.feature-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color 0.2s;
}
@media (min-width: 640px) {
  .feature-card { padding: 2rem; }
}
.feature-card__icon { font-size: 1.75rem; margin-bottom: 0.65rem; }
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.feature-card p { color: var(--clr-muted); font-size: 0.88rem; }

/* ── Page header ───────────────────────────────────────── */
.page-header {
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--clr-border);
}
@media (min-width: 640px) {
  .page-header { margin-bottom: 2.5rem; padding-bottom: 1.5rem; }
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.page-header p { color: var(--clr-muted); margin-top: 0.35rem; font-size: 0.9rem; }

/* ── Form ──────────────────────────────────────────────── */
.split-form { max-width: 720px; }
.form-section {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1rem;
}
@media (min-width: 640px) {
  .form-section { padding: 2rem; margin-bottom: 1.5rem; }
}
.form-section__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
@media (min-width: 640px) {
  .form-section__title { font-size: 1.1rem; margin-bottom: 1.25rem; }
}
.form-section__hint {
  color: var(--clr-muted);
  font-size: 0.85rem;
  margin-top: -0.5rem;
  margin-bottom: 1rem;
  line-height: 1.5;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}
@media (min-width: 540px) {
  .form-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .form-group--full { grid-column: 1 / -1; }
}
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
label { font-size: 0.83rem; color: var(--clr-muted); font-weight: 500; }
input, select {
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  color: var(--clr-text);
  padding: 0.75rem 1rem;
  font-size: max(16px, 0.95rem); /* evita zoom en iOS */
  transition: border-color 0.2s;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  min-height: 48px;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--clr-accent);
}
input::placeholder { color: #444; }
.form-footer { margin-top: 1.5rem; }
@media (min-width: 640px) {
  .form-footer { margin-top: 2rem; }
}
.field-hint { display: block; font-size: 0.8rem; color: var(--clr-muted); margin-top: 0.35rem; }

.preview-calc {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 0.9rem 1.1rem;
  background: var(--clr-accent-dim);
  border: 1px solid var(--clr-accent);
  border-radius: var(--radius);
}
@media (min-width: 640px) {
  .preview-calc { gap: 1rem; margin-top: 1.25rem; padding: 1rem 1.25rem; }
}
.preview-calc__label { color: var(--clr-muted); font-size: 0.85rem; }
.preview-calc__amount {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--clr-accent);
}
@media (min-width: 640px) {
  .preview-calc__amount { font-size: 1.5rem; }
}
.preview-calc--custom { margin-top: 1rem; }

/* ── Split mode toggle ─────────────────────────────────── */
.split-mode-toggle {
  display: flex;
  gap: 0.4rem;
  margin-top: 1rem;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 0.3rem;
}
.split-mode-btn {
  flex: 1;
  padding: 0.65rem 0.75rem;
  border-radius: calc(var(--radius) - 2px);
  border: none;
  background: transparent;
  color: var(--clr-muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}
.split-mode-btn--active {
  background: var(--clr-surface-2);
  color: var(--clr-accent);
  border: 1px solid var(--clr-accent);
}

/* ── Participant inputs ─────────────────────────────────── */
.participants-inputs { display: flex; flex-direction: column; gap: 0.6rem; }
.participant-input-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.participant-input-num {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--clr-accent-dim);
  border: 1px solid var(--clr-accent);
  color: var(--clr-accent);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.participant-input-row input { flex: 1; }
.participant-input-row .amt-input {
  width: 95px;
  flex-shrink: 0;
  text-align: right;
}
@media (min-width: 480px) {
  .participant-input-row .amt-input { width: 110px; }
}

/* ── Split hero ────────────────────────────────────────── */
.split-hero { margin-bottom: 1.75rem; }
@media (min-width: 640px) {
  .split-hero { margin-bottom: 2.5rem; }
}
.split-hero__tag {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-muted);
  margin-bottom: 0.4rem;
}
.split-hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 6vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  word-break: break-word;
}
.split-summary {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.split-summary__item { display: flex; flex-direction: column; gap: 0.15rem; }
.split-summary__value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
}
@media (min-width: 480px) {
  .split-summary__value { font-size: 1.8rem; }
}
.split-summary__label { font-size: 0.72rem; color: var(--clr-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.split-summary__item--accent .split-summary__value { color: var(--clr-accent); }
.split-summary__divider { font-size: 1.5rem; color: var(--clr-border); font-weight: 300; }

/* ── Share bar ─────────────────────────────────────────── */
.share-bar {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 1.5rem;
}
@media (min-width: 480px) {
  .share-bar { flex-direction: row; flex-wrap: wrap; gap: 0.75rem; }
}

/* ── Split layout ──────────────────────────────────────── */
.split-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
@media (min-width: 900px) {
  .split-layout {
    grid-template-columns: 1fr 320px;
    gap: 1.5rem;
    align-items: start;
  }
}
@media (min-width: 1024px) {
  .split-layout { grid-template-columns: 1fr 340px; }
}

/* En móvil el sidebar va abajo del main */
.split-sidebar { margin-top: 0; }

/* ── Card ──────────────────────────────────────────────── */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1rem;
}
@media (min-width: 640px) {
  .card { padding: 1.75rem; margin-bottom: 1.25rem; }
}
.card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.card__header h2, .card h2 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0;
}
@media (min-width: 640px) {
  .card h2 { font-size: 1.1rem; margin-bottom: 1rem; }
  .card__header h2 { margin-bottom: 0; }
}
.card p { color: var(--clr-muted); font-size: 0.88rem; margin-bottom: 1rem; line-height: 1.5; }
.card--action { border-color: var(--clr-accent); }
.card--success {
  border-color: var(--clr-green);
  background: var(--clr-green-dim);
  text-align: center;
  padding: 2rem 1.25rem;
}
@media (min-width: 640px) {
  .card--success { padding: 2.5rem; }
}
.card--bank { border-color: #2d2d2d; }
.card--qr { text-align: center; }
.success-icon { font-size: 2.5rem; margin-bottom: 0.65rem; }

/* ── Pills & badges ────────────────────────────────────── */
.progress-pills { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.pill {
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.pill--paid { background: var(--clr-green-dim); color: var(--clr-green); }
.pill--pending { background: var(--clr-red-dim); color: var(--clr-red); }
.badge {
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}
.badge--paid { background: var(--clr-green-dim); color: var(--clr-green); }
.badge--pending { background: var(--clr-red-dim); color: var(--clr-red); }

/* ── Participants list ─────────────────────────────────── */
.participants-list { display: flex; flex-direction: column; gap: 0.6rem; }
.participant {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--clr-border);
  transition: border-color 0.2s;
  flex-wrap: wrap;
  gap: 0.4rem;
}
@media (min-width: 640px) {
  .participant { padding: 1rem 1.25rem; gap: 0.5rem; }
}
.participant--paid { border-color: rgba(74,222,128,.2); background: rgba(74,222,128,.04); }
.participant__info { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
@media (min-width: 480px) {
  .participant__info { gap: 1rem; }
}
.participant__name { font-weight: 500; font-size: 0.95rem; }
.participant__amount { color: var(--clr-muted); font-size: 0.85rem; }
.participant__status { display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; }
.participant__time { font-size: 0.72rem; color: var(--clr-muted); }

/* ── Rename inline ─────────────────────────────────────── */
.btn-rename {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.8rem;
  opacity: 0.45;
  padding: 0.2rem;
  transition: opacity 0.15s;
  flex-shrink: 0;
  min-width: 28px;
  min-height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
}
.btn-rename:hover { opacity: 1; }
.rename-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--clr-border);
  width: 100%;
}
.rename-form input {
  flex: 1;
  min-width: 120px;
  padding: 0.45rem 0.75rem;
  font-size: max(16px, 0.88rem);
  min-height: 40px;
}

/* ── Pay form ──────────────────────────────────────────── */
.pay-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
@media (min-width: 540px) {
  .pay-form { flex-direction: row; flex-wrap: wrap; }
  .pay-form select { flex: 1; min-width: 180px; }
}
.pay-form--extended { flex-direction: column; }

/* ── Receipt upload ────────────────────────────────────── */
.receipt-upload { cursor: pointer; }
.receipt-upload__label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border: 1.5px dashed var(--clr-border);
  border-radius: var(--radius);
  font-size: 0.88rem;
  color: var(--clr-muted);
  cursor: pointer;
  transition: border-color 0.18s, color 0.18s;
  min-height: 48px;
}
.receipt-upload__label:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

/* ── wa.me mini button ─────────────────────────────────── */
.btn-wa-mini {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: rgba(37,211,102,.12);
  color: var(--clr-wa);
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(37,211,102,.3);
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
  min-height: 32px;
  -webkit-tap-highlight-color: transparent;
}
.btn-wa-mini:hover { background: rgba(37,211,102,.22); border-color: var(--clr-wa); }

/* ── Reminder list ─────────────────────────────────────── */
.card--reminder { border-color: rgba(240,224,64,.2); }
.reminder-list { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.25rem; }
.reminder-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 1rem;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  color: var(--clr-text);
  transition: border-color 0.18s, background 0.18s;
  text-decoration: none;
  min-height: 52px;
  -webkit-tap-highlight-color: transparent;
}
.reminder-item:hover { border-color: var(--clr-wa); background: rgba(37,211,102,.06); }
.reminder-item svg { color: var(--clr-wa); flex-shrink: 0; }
.reminder-item__name { flex: 1; font-weight: 500; font-size: 0.9rem; }
.reminder-item__amount { color: var(--clr-muted); font-size: 0.85rem; }
.reminder-item__action { font-size: 0.78rem; color: var(--clr-wa); white-space: nowrap; }

/* ── Bank info ─────────────────────────────────────────── */
.bank-info { display: grid; grid-template-columns: auto 1fr; gap: 0.45rem 0.85rem; }
.bank-info dt { color: var(--clr-muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; align-self: center; }
.bank-info dd { font-weight: 500; font-size: 0.9rem; word-break: break-all; }
.bank-info__number { font-family: monospace; font-size: 1rem; color: var(--clr-accent); }
.bank-info + .btn { margin-top: 1.25rem; width: 100%; justify-content: center; }

/* ── QR ────────────────────────────────────────────────── */
.qr-image {
  width: 160px;
  height: 160px;
  margin: 0.85rem auto;
  border-radius: var(--radius);
  border: 4px solid var(--clr-surface-2);
}
@media (min-width: 640px) {
  .qr-image { width: 180px; height: 180px; margin: 1rem auto; }
}
.card--qr .btn { width: 100%; justify-content: center; }

/* ── Scan trigger button ───────────────────────────────── */
.input-with-action { display: flex; gap: 0.5rem; align-items: stretch; }
.input-with-action input { flex: 1; min-width: 0; }
.btn-scan-trigger {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0 0.85rem;
  border-radius: var(--radius);
  background: var(--clr-surface-2);
  color: var(--clr-text);
  border: 1.5px solid var(--clr-border);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.18s, background 0.18s;
  min-height: 48px;
  -webkit-tap-highlight-color: transparent;
}
.btn-scan-trigger:hover { border-color: var(--clr-accent); background: var(--clr-accent-dim); color: var(--clr-accent); }

/* ── OCR section ───────────────────────────────────────── */
.ocr-section { border-color: rgba(240,224,64,.25) !important; }
.ocr-source-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}
.ocr-source-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 1rem 0.75rem;
  border-radius: var(--radius-lg);
  background: var(--clr-surface-2);
  border: 1.5px solid var(--clr-border);
  color: var(--clr-text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s;
  text-align: center;
  min-height: 90px;
  -webkit-tap-highlight-color: transparent;
}
@media (min-width: 640px) {
  .ocr-source-btn { padding: 1.25rem 1rem; min-height: auto; }
}
.ocr-source-btn:hover { border-color: var(--clr-accent); background: var(--clr-accent-dim); }
.ocr-source-btn--camera:hover { border-color: var(--clr-green); background: var(--clr-green-dim); }
.ocr-source-btn__icon { font-size: 1.75rem; }
@media (min-width: 640px) { .ocr-source-btn__icon { font-size: 2rem; } }
.ocr-source-btn__hint { font-size: 0.72rem; color: var(--clr-muted); font-weight: 400; }

.ocr-dropzone {
  border: 2px dashed var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s;
  cursor: pointer;
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (min-width: 640px) { .ocr-dropzone { min-height: 160px; } }
.ocr-dropzone--over { border-color: var(--clr-accent); background: var(--clr-accent-dim); }
.ocr-dropzone__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 1.5rem 1rem;
  text-align: center;
}
@media (min-width: 640px) { .ocr-dropzone__inner { padding: 2rem; } }
.ocr-dropzone__icon { font-size: 2rem; }
.ocr-dropzone__text { color: var(--clr-text); font-size: 0.9rem; line-height: 1.5; }
.ocr-dropzone__text .ocr-link { color: var(--clr-accent); text-decoration: underline; cursor: pointer; }
.ocr-dropzone__hint { color: var(--clr-muted); font-size: 0.75rem; }
.ocr-preview-img { width: 100%; max-height: 260px; object-fit: contain; display: block; background: #111; }
@media (min-width: 640px) { .ocr-preview-img { max-height: 300px; } }

.ocr-loading { display: flex; align-items: center; gap: 0.75rem; margin-top: 1rem; color: var(--clr-muted); font-size: 0.9rem; }
.ocr-spinner {
  width: 1.1rem; height: 1.1rem;
  border: 2px solid var(--clr-border);
  border-top-color: var(--clr-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

.ocr-result {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  background: var(--clr-accent-dim);
  border: 1px solid var(--clr-accent);
  border-radius: var(--radius);
}
.ocr-result__row { display: flex; align-items: baseline; gap: 0.75rem; margin-bottom: 0.85rem; flex-wrap: wrap; }
.ocr-result__label { color: var(--clr-muted); font-size: 0.85rem; }
.ocr-result__amount { font-family: var(--font-display); font-size: 1.75rem; font-weight: 800; color: var(--clr-accent); }
.ocr-result__actions { display: flex; flex-direction: column; gap: 0.6rem; }
@media (min-width: 480px) { .ocr-result__actions { flex-direction: row; flex-wrap: wrap; } }

.ocr-error {
  margin-top: 1rem;
  padding: 0.9rem 1.1rem;
  background: var(--clr-red-dim);
  border: 1px solid var(--clr-red);
  border-radius: var(--radius);
  color: var(--clr-red);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.88rem;
  flex-wrap: wrap;
}
.ocr-close { margin-top: 0.85rem; font-size: 0.85rem; }

.ocr-pdf-preview {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  width: 100%;
  justify-content: center;
}
.ocr-pdf-preview__icon { font-size: 2.25rem; }
.ocr-pdf-preview__name { font-size: 0.85rem; color: var(--clr-muted); word-break: break-all; max-width: 220px; }

/* ── Flash ─────────────────────────────────────────────── */
.flash { padding: 0.9rem 1.1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.88rem; line-height: 1.5; }

/* ── Print ─────────────────────────────────────────────── */
@media print {
  .site-header, .site-footer, .btn, .pay-form, .card--action, .share-bar { display: none !important; }
  body { background: white; color: black; }
  .card--qr { border: 1px solid #ccc; }
}

/* ── Páginas de error (404, 500, 403) ───────────────────── */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 1rem;
  min-height: 50vh;
}
.error-page__code {
  font-family: var(--font-display);
  font-size: clamp(5rem, 20vw, 10rem);
  font-weight: 800;
  line-height: 1;
  color: var(--clr-accent);
  letter-spacing: -0.05em;
  margin-bottom: 1rem;
}
.error-page__title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.error-page__sub {
  color: var(--clr-muted);
  font-size: 1rem;
  max-width: 400px;
  margin: 0 auto 2rem;
}

/* ── Flash messages mejorados ───────────────────────────── */
.flash {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.92rem;
  animation: slideDown 0.25s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.flash--success {
  background: var(--clr-green-dim);
  border: 1px solid var(--clr-green);
  color: var(--clr-green);
}
.flash--success::before { content: "✓"; font-weight: 700; }
.flash--error {
  background: var(--clr-red-dim);
  border: 1px solid var(--clr-red);
  color: var(--clr-red);
}
.flash--error::before { content: "✕"; font-weight: 700; }