/* ════════════════════════════════════════════════════════════════
   AhorraPe — Sistema de diseño compartido
   Cargado por todas las páginas. Inter + variables + componentes.
   ════════════════════════════════════════════════════════════════ */

:root {
  --ink:        #0E0E14;
  --ink-soft:   #41414E;
  --muted:      #8A8A99;
  --line:       #ECECF1;
  --line-soft:  #F4F4F7;
  --bg:         #FFFFFF;
  --bg-soft:    #FAFAFB;
  --brand:      #6D28D9;
  --brand-hi:   #7C3AED;
  --brand-ink:  #5B21B6;
  --brand-soft: #F3F0FE;
  --emerald:    #059669;
  --emerald-soft:#ECFDF5;
  --amber:      #D97706;
  --red:        #DC2626;
  --radius:     16px;
  --shadow-sm:  0 1px 2px rgba(14,14,20,.04);
  --shadow:     0 12px 32px -12px rgba(14,14,20,.12);
  --shadow-lg:  0 28px 60px -18px rgba(14,14,20,.20);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  margin: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ── Typography helpers ───────────────────────────────────────── */
.display { letter-spacing: -0.03em; line-height: 1.04; font-weight: 800; }
.tight   { letter-spacing: -0.02em; }
.eyebrow {
  font-size: .75rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--brand);
}
.gradient {
  background: linear-gradient(120deg, var(--brand-hi) 0%, #4F46E5 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-weight: 600; font-size: .9375rem; line-height: 1; cursor: pointer;
  border-radius: 13px; padding: .8rem 1.3rem; border: 1px solid transparent;
  transition: all .18s ease; white-space: nowrap; text-decoration: none;
  font-family: inherit;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-ink); transform: translateY(-1px); box-shadow: 0 12px 26px -10px rgba(109,40,217,.55); }
.btn-outline { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-ghost { background: transparent; color: var(--ink-soft); }
.btn-ghost:hover { color: var(--ink); background: var(--bg-soft); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { transform: translateY(-1px); box-shadow: 0 14px 30px -12px rgba(0,0,0,.5); }
.btn-lg { padding: 1.05rem 1.9rem; font-size: 1.0625rem; border-radius: 15px; }
.btn-sm { padding: .55rem .9rem; font-size: .8125rem; border-radius: 10px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── Cards ────────────────────────────────────────────────────── */
.card { background: #fff; border: 1px solid var(--line); border-radius: 24px; }
.card-hover { transition: transform .2s ease, box-shadow .2s ease; }
.card-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

/* ── Chips & badges ───────────────────────────────────────────── */
.chip {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .8125rem; font-weight: 600; padding: .4rem .85rem; border-radius: 999px;
}
.chip-brand   { background: var(--brand-soft); color: var(--brand); }
.chip-emerald { background: var(--emerald-soft); color: var(--emerald); }
.chip-muted   { background: var(--bg-soft); color: var(--muted); }
.badge-pro {
  font-size: .625rem; font-weight: 800; letter-spacing: .06em;
  background: linear-gradient(120deg, var(--brand-hi), #4F46E5); color: #fff;
  padding: .2rem .45rem; border-radius: 6px; text-transform: uppercase;
}

/* ── Form fields ──────────────────────────────────────────────── */
.field {
  width: 100%; border: 1px solid var(--line); background: var(--bg-soft);
  border-radius: 13px; padding: .85rem 1rem; font-size: .95rem; color: var(--ink);
  font-weight: 500; transition: all .15s; font-family: inherit;
}
.field::placeholder { color: #B5B5C0; font-weight: 400; }
.field:focus { outline: none; border-color: var(--brand); background: #fff; box-shadow: 0 0 0 4px var(--brand-soft); }
.field-label { display: block; font-size: .8125rem; font-weight: 600; color: var(--ink-soft); margin-bottom: .4rem; }

/* ── Navbar ───────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.78); backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid var(--line);
}
.nav-inner { max-width: 1120px; margin: 0 auto; padding: .85rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); }
.brand-name { font-weight: 800; font-size: 1.2rem; letter-spacing: -.02em; }
.nav-links { display: none; align-items: center; gap: 1.75rem; }
.nav-link { font-size: .9rem; font-weight: 500; color: var(--muted); text-decoration: none; transition: color .15s; }
.nav-link:hover { color: var(--ink); }
.nav-link.active { color: var(--ink); font-weight: 600; }
.nav-actions { display: flex; align-items: center; gap: .65rem; }
.avatar {
  width: 34px; height: 34px; border-radius: 10px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .85rem; color: #fff;
  background: linear-gradient(135deg, var(--brand-hi), #4F46E5);
}
@media (min-width: 880px) { .nav-links { display: flex; } }
.hide-sm { display: none; }
@media (min-width: 560px) { .hide-sm { display: inline; } }

/* ── Modal ────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 100; padding: 1.5rem;
  background: rgba(14,14,20,.5); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity .2s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal {
  background: #fff; border-radius: 26px; width: 100%; max-width: 430px;
  padding: 2.25rem; box-shadow: var(--shadow-lg);
  transform: translateY(14px) scale(.98); transition: transform .22s ease;
  max-height: 92vh; overflow-y: auto;
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }

/* ── Toast ────────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 1.5rem; left: 50%; z-index: 200;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: #fff; padding: .85rem 1.3rem; border-radius: 13px;
  font-size: .9rem; font-weight: 500; box-shadow: var(--shadow-lg);
  opacity: 0; pointer-events: none; transition: all .25s ease; max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast-ok { background: #052E1B; }
.toast-err { background: #3B0A0A; }

/* ── Sections & utilities ─────────────────────────────────────── */
.wrap { max-width: 1120px; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
.wrap-sm { max-width: 760px; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
.divider { height: 1px; background: var(--line); border: 0; }
.link { color: var(--brand); font-weight: 600; text-decoration: none; }
.link:hover { text-decoration: underline; }

/* fade up entrance */
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp .45s ease both; }

/* progress bars */
.bar { transition: width .7s cubic-bezier(.4,0,.2,1); }

/* hide number spinners */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; }

/* lock body scroll when modal open */
body.modal-open { overflow: hidden; }