/* ============================================================
   COBRANZA TOOLS — ESTILOS PRINCIPALES
   Diseño: Industrial / Utilitario de precisión
   Paleta: Azul marino profundo + Dorado + Blanco técnico
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Barlow+Condensed:wght@400;600;700&family=Barlow:wght@400;500&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:         #080d1a;
  --surface:    #0e1525;
  --surface2:   #141d30;
  --border:     #1e2d4a;
  --border2:    #253554;
  --gold:       #c9a84c;
  --gold-light: #e8c96a;
  --gold-dim:   #7a6330;
  --text:       #dce6f5;
  --text-mid:   #8ea3c3;
  --text-dim:   #4a6080;
  --accent:     #2a7fff;
  --success:    #1db87a;
  --error:      #e05555;
  --radius:     6px;
  --radius-lg:  12px;
  --mono:       'DM Mono', monospace;
  --condensed:  'Barlow Condensed', sans-serif;
  --body:       'Barlow', sans-serif;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  overscroll-behavior: none;
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

/* ── Shell ─────────────────────────────────────────────────── */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  max-width: 480px;
  margin: 0 auto;
}

/* ── Header ────────────────────────────────────────────────── */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 20px 0;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.brand-name {
  font-family: var(--condensed);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: var(--text);
  text-transform: uppercase;
  line-height: 1.1;
}

/* Acento dorado en "Smart" dentro del nombre de marca */
.brand-smart {
  color: var(--gold);
}

.brand-tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.25);
  padding: 2px 6px;
  border-radius: 3px;
}

.header-date {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* ── Tab Nav ───────────────────────────────────────────────── */
.tab-nav {
  display: flex;
  gap: 0;
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  font-family: var(--condensed);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 4px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  position: relative;
  white-space: nowrap;
}

.tab-btn.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.tab-btn:not(.active):hover {
  color: var(--text-mid);
}

/* ── Main Content ──────────────────────────────────────────── */
.tab-content {
  flex: 1;
  padding: 20px 16px 40px;
}

.panel { display: none; }
.panel.active { display: block; animation: fadeUp 0.22s ease; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Section Title ─────────────────────────────────────────── */
.section-title {
  font-family: var(--condensed);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 4px;
}

.section-sub {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

/* ── Card ──────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-bottom: 16px;
}

.card-title {
  font-family: var(--condensed);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title::before {
  content: '';
  width: 3px;
  height: 12px;
  background: var(--gold);
  border-radius: 2px;
  display: block;
}

/* ── Form Elements ─────────────────────────────────────────── */
.field {
  margin-bottom: 12px;
}

.field label {
  display: block;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-mid);
  margin-bottom: 6px;
}

.field input,
.field select {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--mono);
  font-size: 1rem;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.field input:focus,
.field select:focus {
  border-color: var(--gold-dim);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.12);
}

.field input::placeholder { color: var(--text-dim); }

.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234a6080' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

.field select option {
  background: var(--surface2);
}

/* ── Row ───────────────────────────────────────────────────── */
.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: var(--radius);
  font-family: var(--condensed);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.15s;
  margin-top: 6px;
}

.btn-primary {
  background: var(--gold);
  color: #0a0d14;
}

.btn-primary:active {
  background: var(--gold-light);
  transform: scale(0.98);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text-mid);
}

.btn-ghost:active {
  background: var(--surface2);
}

/* ── Result Box ────────────────────────────────────────────── */
.result-box {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 16px;
  margin-top: 14px;
  display: none;
}

.result-box.show { display: block; animation: fadeUp 0.2s ease; }

.result-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.result-value {
  font-family: var(--mono);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--gold-light);
  word-break: break-all;
}

.result-value.code-style {
  font-size: 2rem;
  letter-spacing: 0.08em;
  color: var(--success);
}

.result-sub {
  font-size: 0.72rem;
  color: var(--text-mid);
  margin-top: 4px;
}

/* ── CPD Range Info ────────────────────────────────────────── */
.cpd-info {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  margin-top: 6px;
}

/* ── Toggle Group ──────────────────────────────────────────── */
.toggle-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.toggle-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text-mid);
  font-family: var(--condensed);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 8px;
  cursor: pointer;
  transition: all 0.15s;
  text-align: center;
}

.toggle-btn.active {
  background: rgba(201,168,76,0.12);
  border-color: var(--gold-dim);
  color: var(--gold);
}

/* ── Divider ───────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 16px 0;
}

/* ── Error state ───────────────────────────────────────────── */
.field input.error,
.field select.error {
  border-color: var(--error);
}

.field-error {
  font-size: 0.65rem;
  color: var(--error);
  margin-top: 4px;
  font-family: var(--mono);
  display: none;
}

.field-error.show { display: block; }

/* ── Install Banner ────────────────────────────────────────── */
.install-banner {
  display: none;
  background: rgba(201,168,76,0.08);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 16px;
  align-items: center;
  gap: 12px;
}

.install-banner.show { display: flex; }

.install-banner p {
  font-size: 0.78rem;
  color: var(--text-mid);
  flex: 1;
}

.install-banner p strong {
  color: var(--gold);
  display: block;
  font-family: var(--condensed);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.7rem;
  margin-bottom: 2px;
}

.install-btn {
  background: var(--gold);
  color: #0a0d14;
  border: none;
  border-radius: var(--radius);
  font-family: var(--condensed);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 8px 14px;
  cursor: pointer;
  white-space: nowrap;
}

/* ── Fecha Mode Tabs ───────────────────────────────────────── */
.mode-tabs {
  display: flex;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px;
  margin-bottom: 16px;
}

.mode-tab {
  flex: 1;
  background: none;
  border: none;
  border-radius: 4px;
  color: var(--text-dim);
  font-family: var(--condensed);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 9px 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.mode-tab.active {
  background: var(--surface);
  color: var(--gold);
  border: 1px solid var(--border2);
}

/* ── Seguro Radio ──────────────────────────────────────────── */
.radio-group {
  display: flex;
  gap: 8px;
}

.radio-opt {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  flex: 1;
}

.radio-opt input[type="radio"] {
  display: none;
}

.radio-box {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text-mid);
  font-family: var(--condensed);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 8px;
  text-align: center;
  transition: all 0.15s;
  cursor: pointer;
}

.radio-opt input[type="radio"]:checked + .radio-box {
  background: rgba(201,168,76,0.12);
  border-color: var(--gold-dim);
  color: var(--gold);
}

/* ── TCR Notice ────────────────────────────────────────────── */
.notice {
  background: rgba(42,127,255,0.08);
  border: 1px solid rgba(42,127,255,0.2);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.72rem;
  color: var(--text-mid);
  margin-top: 10px;
  font-family: var(--mono);
}

.notice strong { color: #64a8ff; }

/* ── Footer ────────────────────────────────────────────────── */
.app-footer {
  padding: 14px 20px 18px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-brand {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 10px;
}

.footer-credits {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 10px 16px;
}

.footer-logo {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}

.footer-author {
  font-family: var(--body);
  font-size: 0.75rem;
  color: var(--text-mid);
  letter-spacing: 0.02em;
}

.footer-author strong {
  color: var(--gold-light);
  font-weight: 500;
}