/* ------------------------------------------------------------------ */
/*  Tokens (paleta equivalente a la de Tailwind slate/teal/emerald)     */
/* ------------------------------------------------------------------ */
:root {
  --slate-950: #020617;
  --slate-900: #0f172a;
  --slate-850: #131c2e;
  --slate-800: #1e293b;
  --slate-750: #253347;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;

  --teal-300: #5eead4;
  --teal-400: #2dd4bf;
  --emerald-400: #34d399;
  --emerald-500: #10b981;

  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --sky-400: #38bdf8;
  --sky-500: #0ea5e9;
  --red-300: #fca5a5;
  --red-400: #f87171;
  --red-500: #ef4444;

  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
}

* { box-sizing: border-box; }

html, body, #app { height: 100%; }

body {
  margin: 0;
  background: var(--slate-950);
  color: var(--slate-200);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button, input, select {
  font-family: inherit;
  color: inherit;
}

button { cursor: pointer; }

/* ------------------------------------------------------------------ */
/*  Phone frame                                                         */
/* ------------------------------------------------------------------ */
.app-shell {
  min-height: 100vh;
  width: 100%;
  background: var(--slate-950);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.phone {
  width: 100%;
  min-height: 100vh;
  background: var(--slate-950);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

@media (min-width: 640px) {
  .app-shell { padding: 2rem 0; }
  .phone {
    max-width: 28rem;
    min-height: 0;
    height: calc(100vh - 4rem);
    border-radius: 1.5rem;
    border: 1px solid var(--slate-800);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
  }
}

.phone-body { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.screen { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.screen-scroll { flex: 1; min-height: 0; overflow-y: auto; }

/* ------------------------------------------------------------------ */
/*  Typography helpers                                                  */
/* ------------------------------------------------------------------ */
.logo {
  font-family: Georgia, serif;
  font-weight: 900;
  background: linear-gradient(to bottom right, var(--teal-300), var(--emerald-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.logo-sm { font-size: 1.25rem; }
.logo-md { font-size: 1.875rem; }
.logo-lg { font-size: 3.75rem; }

.title-xl { font-size: 1.5rem; font-weight: 800; color: #fff; }
.title-lg { font-size: 1.25rem; font-weight: 700; color: #fff; }
.title-md { font-size: 1.125rem; font-weight: 700; color: #fff; }
.text-muted { color: var(--slate-400); }
.text-faint { color: var(--slate-500); }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-teal { color: var(--teal-400); }

/* ------------------------------------------------------------------ */
/*  Buttons                                                             */
/* ------------------------------------------------------------------ */
.btn {
  width: 100%;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-xl);
  font-weight: 600;
  border: none;
  transition: transform 0.1s ease, background 0.15s ease;
  font-size: 0.95rem;
}
.btn:active { transform: scale(0.98); }

.btn-primary {
  color: var(--slate-950);
  background: linear-gradient(to right, var(--teal-400), var(--emerald-500));
}
.btn-primary:hover { background: linear-gradient(to right, var(--teal-300), var(--emerald-400)); }
.btn-primary:disabled {
  background: var(--slate-700);
  color: var(--slate-400);
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  color: var(--slate-200);
  background: var(--slate-800);
  border: 1px solid var(--slate-700);
}
.btn-secondary:hover { background: var(--slate-750); }

.btn-ghost-back {
  background: none;
  border: none;
  padding: 0;
  color: var(--slate-300);
  display: flex;
  align-items: center;
}
.btn-ghost-back:hover { color: #fff; }

/* ------------------------------------------------------------------ */
/*  Cards / badges                                                      */
/* ------------------------------------------------------------------ */
.card {
  background: var(--slate-900);
  border: 1px solid var(--slate-800);
  border-radius: var(--radius-2xl);
  padding: 1rem;
}
.card-gradient { background: linear-gradient(to bottom right, var(--slate-900), var(--slate-800)); }
.card-row { display: flex; flex-direction: row; align-items: center; gap: 0.75rem; }
.card-tint-sky { background: rgba(14, 165, 233, 0.05); border-color: rgba(14, 165, 233, 0.2); }

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  display: inline-block;
}
.badge-success { background: rgba(16, 185, 129, 0.15); color: var(--emerald-400); }
.badge-pending { background: rgba(245, 158, 11, 0.15); color: var(--amber-400); }
.badge-info { background: rgba(14, 165, 233, 0.15); color: var(--sky-400); }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: var(--red-400); }

/* ------------------------------------------------------------------ */
/*  Forms                                                               */
/* ------------------------------------------------------------------ */
.field { display: block; margin-bottom: 1rem; }
.field-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--slate-400);
  margin-bottom: 0.375rem;
}
.text-input,
select.text-input {
  width: 100%;
  background: var(--slate-800);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-lg);
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  color: #fff;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.text-input::placeholder { color: var(--slate-500); }
.text-input:focus {
  border-color: var(--teal-400);
  box-shadow: 0 0 0 1px var(--teal-400);
}
.input-wrap { position: relative; }
.input-eye {
  position: absolute;
  right: 0.75rem;
  top: 0.6rem;
  background: none;
  border: none;
  color: var(--slate-500);
  padding: 0;
  display: flex;
}
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  font-size: 0.75rem;
  color: var(--slate-400);
}
.checkbox-row input { margin-top: 0.15rem; }

input[type="range"] {
  width: 100%;
  accent-color: var(--teal-400);
  margin-bottom: 0.25rem;
}

/* ------------------------------------------------------------------ */
/*  Layout utility classes                                              */
/* ------------------------------------------------------------------ */
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.pt-5 { padding-top: 1.25rem; }
.pb-4 { padding-bottom: 1rem; }
.pb-6 { padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-10 { padding-top: 2.5rem; padding-bottom: 2.5rem; }
.py-14 { padding-top: 3.5rem; padding-bottom: 3.5rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-auto { margin-top: auto; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.flex-1 { flex: 1; }
.shrink-0 { flex-shrink: 0; }
.w-full { width: 100%; }
.relative { position: relative; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.divide > * + * { border-top: 1px solid var(--slate-800); }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }

.avatar {
  width: 2.5rem; height: 2.5rem;
  border-radius: 999px;
  background: var(--slate-800);
  color: var(--teal-400);
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.avatar-lg {
  width: 3rem; height: 3rem;
  border-radius: 999px;
  background: linear-gradient(to bottom right, var(--teal-400), var(--emerald-500));
  color: var(--slate-950);
  font-weight: 700;
  font-size: 1.125rem;
  display: flex; align-items: center; justify-content: center;
}

/* ------------------------------------------------------------------ */
/*  Header                                                              */
/* ------------------------------------------------------------------ */
.screen-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.25rem 1rem;
}
.screen-header-left { display: flex; align-items: center; gap: 0.75rem; }

/* ------------------------------------------------------------------ */
/*  Row (label/value line inside cards)                                 */
/* ------------------------------------------------------------------ */
.row { display: flex; justify-content: space-between; align-items: center; padding: 0.25rem 0; }
.row-label { font-size: 0.75rem; color: var(--slate-400); }
.row-value { font-size: 0.875rem; font-weight: 600; color: var(--slate-200); }
.row-value.highlight { color: var(--teal-400); }
.divider { border-top: 1px solid var(--slate-800); margin: 0.5rem 0; }

/* ------------------------------------------------------------------ */
/*  Quick access grid                                                   */
/* ------------------------------------------------------------------ */
.quick-access {
  background: var(--slate-900);
  border: 1px solid var(--slate-800);
  border-radius: var(--radius-xl);
  padding: 1rem;
  text-align: left;
  transition: border-color 0.15s;
}
.quick-access:hover { border-color: var(--slate-700); }
.quick-access .qa-icon { color: var(--teal-400); margin-bottom: 0.5rem; }
.quick-access .qa-label { font-size: 0.875rem; color: var(--slate-200); font-weight: 500; }

/* ------------------------------------------------------------------ */
/*  Term picker (simulator)                                             */
/* ------------------------------------------------------------------ */
.term-btn {
  padding: 0.5rem 0;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid var(--slate-700);
  background: var(--slate-800);
  color: var(--slate-300);
  text-align: center;
}
.term-btn.active {
  background: linear-gradient(to right, var(--teal-400), var(--emerald-500));
  color: var(--slate-950);
  border-color: transparent;
}

/* ------------------------------------------------------------------ */
/*  Stepper (request flow)                                              */
/* ------------------------------------------------------------------ */
.stepper { display: flex; align-items: center; gap: 0.5rem; padding: 0 1.25rem; margin-bottom: 1.25rem; }
.step-item { display: flex; flex-direction: column; align-items: center; gap: 0.25rem; }
.step-dot {
  width: 1.5rem; height: 1.5rem;
  border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 700;
  background: var(--slate-800); color: var(--slate-500);
}
.step-dot.current, .step-dot.done { background: linear-gradient(to right, var(--teal-400), var(--emerald-500)); color: var(--slate-950); }
.step-label { font-size: 0.625rem; color: var(--slate-500); white-space: nowrap; }
.step-line { flex: 1; height: 1px; background: var(--slate-800); margin-bottom: 1rem; }

/* ------------------------------------------------------------------ */
/*  Timeline (status screen)                                            */
/* ------------------------------------------------------------------ */
.timeline-item { display: flex; gap: 0.75rem; }
.timeline-dot-col { display: flex; flex-direction: column; align-items: center; }
.timeline-dot {
  width: 1.5rem; height: 1.5rem;
  border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  background: var(--slate-800); color: var(--slate-600);
}
.timeline-dot.done { background: var(--emerald-500); color: var(--slate-950); }
.timeline-dot.current { background: var(--amber-400); color: var(--slate-950); }
.timeline-line { width: 1px; flex: 1; min-height: 28px; background: var(--slate-800); }
.timeline-line.done { background: var(--emerald-500); }
.timeline-content { padding-bottom: 1.5rem; }
.timeline-title { font-size: 0.875rem; font-weight: 500; color: var(--slate-600); }
.timeline-title.active { color: #fff; }
.timeline-sub { font-size: 0.75rem; color: var(--slate-500); }

/* ------------------------------------------------------------------ */
/*  List rows (profile / settings / notifications / calendar)           */
/* ------------------------------------------------------------------ */
.list-card {
  background: var(--slate-900);
  border: 1px solid var(--slate-800);
  border-radius: var(--radius-2xl);
  overflow: hidden;
}
.list-row {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  text-align: left;
  background: none;
  border: none;
  font-size: 0.875rem;
  color: var(--slate-200);
}
.list-row + .list-row { border-top: 1px solid var(--slate-800); }
.list-row-left { display: flex; align-items: center; gap: 0.75rem; }
.list-row-left .ic { color: var(--teal-400); }
.list-row-right { display: flex; align-items: center; gap: 0.5rem; }

.logout-row {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  background: none;
  border: none;
  color: var(--red-400);
  font-size: 0.875rem;
  font-weight: 500;
  text-align: left;
}

.pay-row {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--slate-900);
  border: 1px solid var(--slate-800);
  border-radius: var(--radius-xl);
  padding: 0.75rem 1rem;
}
.pay-num { color: var(--slate-600); font-size: 0.75rem; font-family: monospace; width: 1rem; display: inline-block; }
.pay-btn {
  font-size: 0.75rem; font-weight: 600;
  background: linear-gradient(to right, var(--teal-400), var(--emerald-500));
  color: var(--slate-950);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-lg);
  border: none;
}
.pay-btn:disabled { opacity: 0.6; }

.notif-row {
  display: flex; align-items: flex-start; gap: 0.75rem;
  background: var(--slate-900);
  border: 1px solid var(--slate-800);
  border-radius: var(--radius-xl);
  padding: 0.75rem 1rem;
}
.notif-dot { width: 0.5rem; height: 0.5rem; border-radius: 999px; margin-top: 0.35rem; flex-shrink: 0; background: transparent; }
.notif-dot.unread { background: var(--teal-400); }

/* ------------------------------------------------------------------ */
/*  Bottom nav                                                          */
/* ------------------------------------------------------------------ */
.bottom-nav {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--slate-800);
  background: var(--slate-950);
}
.nav-btn {
  background: none; border: none;
  display: flex; flex-direction: column; align-items: center; gap: 0.15rem;
  padding: 0.6rem 0;
  position: relative;
}
.nav-icon-wrap { position: relative; }
.nav-icon-wrap .icon { color: var(--slate-600); }
.nav-btn.active .nav-icon-wrap .icon { color: var(--teal-400); }
.nav-label { font-size: 0.6rem; color: var(--slate-600); }
.nav-btn.active .nav-label { color: var(--teal-400); font-weight: 600; }
.nav-badge {
  position: absolute; top: -0.25rem; right: -0.4rem;
  background: var(--red-500); color: #fff;
  font-size: 0.55rem;
  border-radius: 999px;
  width: 0.9rem; height: 0.9rem;
  display: flex; align-items: center; justify-content: center;
}

/* ------------------------------------------------------------------ */
/*  Global error banner                                                 */
/* ------------------------------------------------------------------ */
.global-error {
  margin: 1rem 1.25rem 0.5rem;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 0.5rem;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-lg);
  padding: 0.5rem 0.75rem;
}
.global-error p { font-size: 0.7rem; color: var(--red-300); margin: 0; }
.global-error button { background: none; border: none; color: var(--red-300); flex-shrink: 0; padding: 0; }

.form-error { color: var(--red-400); font-size: 0.75rem; margin-bottom: 0.75rem; }
.hint-tiny { font-size: 0.625rem; color: var(--slate-600); margin-top: 0.25rem; }
.link-btn { background: none; border: none; padding: 0; color: var(--teal-400); font-weight: 600; }
.server-cfg-toggle { background: none; border: none; padding: 0; color: var(--slate-600); font-size: 0.7rem; margin-top: 1.25rem; }
.server-cfg-toggle:hover { color: var(--slate-400); }

.empty-state { display: flex; flex: 1; min-height: 0; flex-direction: column; align-items: center; justify-content: center; padding: 2rem; text-align: center; }