/* VastSigner — capa de pulido visual (se carga al final).
   Objetivo: que la app se vea actual y "premium" sin cambiar la marca VAST:
     · tipografía de display (Plus Jakarta Sans) para títulos, cifras, botones y nombres; Inter para el texto
     · profundidad: luz ambiental de fondo, tarjetas con brillo superior y sombra suave
     · botones con degradado y brillo (glossy) y sombra del color de la marca
     · barra inferior y botones de ícono con efecto vidrio (blur)
     · microinteracciones: entrada de pantalla y presión de botones */

:root {
  --glass: rgba(24, 28, 38, 0.72);
  --glass-line: rgba(255, 255, 255, 0.08);
  --hi: rgba(255, 255, 255, 0.07);          /* brillo del borde superior */
  --grad-primary: linear-gradient(180deg, #2D4DFF 0%, #0B33FB 55%, #0A2BD9 100%);
  --grad-hero: linear-gradient(140deg, #2D4DFF 0%, #0B33FB 55%, #0A25C2 100%); /* mismo degradado del ícono */
  --grad-card: linear-gradient(180deg, rgba(255,255,255,0.045) 0%, rgba(255,255,255,0.012) 100%);
  --sh-btn: 0 10px 24px -8px rgba(25, 55, 240, 0.65), inset 0 1px 0 rgba(255,255,255,0.28);
  --sh-card-soft: 0 1px 0 var(--hi) inset, 0 12px 32px -16px rgba(0, 0, 0, 0.6);
}

/* ---------- Tipografía ---------- */
body { font-family: var(--font-ui); font-feature-settings: 'cv11', 'ss01'; letter-spacing: -0.006em; text-rendering: optimizeLegibility; }
.t-display, .t-h1, .t-h2, .t-title, .brand, .stat__value, .topbar__title, .btn, .t-strong, .tpl__title-ui, .cert .t-title, .ring > span, .tab, .chip, .segmented button, .badge, .label, .link-btn, .avatar {
  font-family: var(--font-display);
}
.t-display { font-size: 32px; font-weight: 800; letter-spacing: -0.025em; line-height: 1.1; }
.t-h1 { font-size: 27px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.15; }
.t-h2 { font-size: 21px; font-weight: 700; letter-spacing: -0.015em; }
.t-title { font-weight: 700; letter-spacing: -0.01em; }
.t-strong { font-weight: 600; letter-spacing: -0.01em; }
.t-section { font-family: var(--font-display); font-size: 13px; font-weight: 600; letter-spacing: 0.02em; color: var(--c-subtle); text-transform: uppercase; }
.topbar__title { font-weight: 700; letter-spacing: -0.015em; }
.stat__value { font-size: 32px; font-weight: 800; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.t-muted { color: var(--c-muted); }
.brand { font-weight: 800; letter-spacing: -0.02em; }

/* ---------- Fondo con luz ambiental ---------- */
.screen {
  background:
    radial-gradient(120% 55% at 0% -10%, rgba(25, 55, 240, 0.22) 0%, transparent 60%),
    radial-gradient(90% 45% at 110% 0%, rgba(124, 147, 247, 0.12) 0%, transparent 55%),
    var(--c-ground);
}
.screen.camera { background: radial-gradient(120% 70% at 50% 30%, var(--c-camera-1) 0%, var(--c-camera-2) 60%, var(--c-camera-3) 100%); }

/* ---------- Tarjetas con profundidad ---------- */
.card, .stat, .doc-row, .toggle-row, .source, .provider, .mail-row, .tile, .tpl__paper, .uploading, .sig-option {
  background: var(--grad-card), var(--c-surface);
  border-color: var(--glass-line);
  box-shadow: var(--sh-card-soft);
}
.card--flush .list-row { border-bottom-color: rgba(255,255,255,0.05); }
.card--dark { background: linear-gradient(160deg, rgba(43, 55, 104, 0.9), rgba(28, 38, 80, 0.9)); border-color: rgba(124,147,247,0.25); }
.list-row--me { background: linear-gradient(90deg, rgba(25,55,240,0.22), rgba(25,55,240,0.06)); }

/* Tarjeta destacada: degradado, brillo diagonal y halo */
.card--hero {
  position: relative; overflow: hidden; isolation: isolate;
  background: var(--grad-hero);
  box-shadow: 0 24px 48px -20px rgba(25, 55, 240, 0.75), inset 0 1px 0 rgba(255,255,255,0.25);
}
.card--hero::before { content: ''; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(80% 90% at 100% 0%, rgba(255,255,255,0.22) 0%, transparent 55%),
              linear-gradient(115deg, transparent 40%, rgba(255,255,255,0.08) 50%, transparent 60%); }
.card--hero::after { content: ''; position: absolute; right: -50px; bottom: -70px; width: 190px; height: 190px; z-index: -1; border-radius: 50%; border: 26px solid rgba(255,255,255,0.06); }
.cert { background: var(--grad-hero); box-shadow: 0 24px 48px -20px rgba(25, 55, 240, 0.75), inset 0 1px 0 rgba(255,255,255,0.25); }

/* ---------- Botones ---------- */
.btn { font-weight: 700; letter-spacing: -0.01em; transition: transform .12s ease, box-shadow .2s ease, filter .2s ease; }
.btn:active, .fab:active, .chip:active, .icon-btn:active, .tile:active, .quick a:active { transform: scale(0.97); }
.btn--primary { background: var(--grad-primary); box-shadow: var(--sh-btn); }
.btn--primary:hover { background: var(--grad-primary); filter: brightness(1.08); }
.btn--primary[disabled] { background: #20284A; box-shadow: none; color: #6E77A0; }
.btn--light { box-shadow: 0 8px 20px -10px rgba(0,0,0,0.5), inset 0 -1px 0 rgba(25,55,240,0.12); font-weight: 700; }
.btn--outline, .btn--outline-primary, .btn--soft {
  background: linear-gradient(180deg, rgba(124,147,247,0.16), rgba(124,147,247,0.08));
  border: 1px solid rgba(124,147,247,0.28); color: #B9C6FF; box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
}
.btn--danger-soft { background: linear-gradient(180deg, rgba(242,139,130,0.16), rgba(242,139,130,0.08)); border: 1px solid rgba(242,139,130,0.22); }
.btn--ghost { font-weight: 600; }

/* FAB: botón central con brillo y halo */
.fab { width: 56px; height: 56px; border-radius: 18px; background: var(--grad-primary);
  box-shadow: 0 12px 28px -8px rgba(25,55,240,0.8), inset 0 1px 0 rgba(255,255,255,0.35), 0 0 0 6px rgba(25,55,240,0.12); }

/* ---------- Vidrio: barra inferior, cabeceras y botones de ícono ---------- */
.tabbar { background: var(--glass); border-color: var(--glass-line);
  -webkit-backdrop-filter: blur(22px) saturate(170%); backdrop-filter: blur(22px) saturate(170%);
  box-shadow: 0 18px 40px -12px rgba(0,0,0,0.7), inset 0 1px 0 var(--hi); }
.tab { font-weight: 600; letter-spacing: -0.005em; }
.tab--active svg { filter: drop-shadow(0 0 8px rgba(124,147,247,0.55)); }
.appbar, .actionbar { background: var(--glass); border-color: var(--glass-line);
  -webkit-backdrop-filter: blur(22px) saturate(170%); backdrop-filter: blur(22px) saturate(170%); }
.icon-btn { background: rgba(255,255,255,0.05); border-color: var(--glass-line);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); box-shadow: inset 0 1px 0 var(--hi); }
.sheet { background: linear-gradient(180deg, #212634 0%, var(--c-surface) 40%); box-shadow: 0 -20px 50px rgba(0,0,0,0.5), inset 0 1px 0 var(--hi); }
.overlay { background: rgba(5, 7, 12, 0.55); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }

/* ---------- Íconos con volumen ---------- */
.ico-box { box-shadow: inset 0 1px 0 rgba(255,255,255,0.08); }
.ico-box--brand { background: linear-gradient(150deg, rgba(124,147,247,0.30), rgba(25,55,240,0.18)); color: #C3CEFF; }
.ico-box--sign { background: linear-gradient(150deg, rgba(242,139,130,0.28), rgba(242,139,130,0.10)); }
.ico-box--wait { background: linear-gradient(150deg, rgba(224,176,74,0.28), rgba(224,176,74,0.10)); }
.ico-box--done { background: linear-gradient(150deg, rgba(95,211,148,0.28), rgba(95,211,148,0.10)); }
.quick span.ico-box { background: var(--grad-card), var(--c-surface); border-color: var(--glass-line); box-shadow: var(--sh-card-soft); color: #AFC0FF; }
@media (min-width: 900px) { html.web-sesion .quick a { background: var(--grad-card), var(--c-surface); border-color: var(--glass-line); box-shadow: var(--sh-card-soft); } html.web-sesion .quick__t { font-family: var(--font-display); } }
.brand__mark { background: var(--grad-primary); box-shadow: 0 6px 16px -6px rgba(25,55,240,0.8), inset 0 1px 0 rgba(255,255,255,0.3); }
.avatar--me, .avatar--xl { background: var(--grad-primary); box-shadow: inset 0 1px 0 rgba(255,255,255,0.3); }
.ok-circle { box-shadow: 0 12px 30px -10px rgba(30,148,80,0.7); }

/* ---------- Chips, segmentados, badges ---------- */
.chip { background: rgba(255,255,255,0.04); border-color: var(--glass-line); font-weight: 600; }
.chip--active { background: var(--grad-primary); border-color: transparent; box-shadow: 0 8px 18px -8px rgba(25,55,240,0.8), inset 0 1px 0 rgba(255,255,255,0.25); }
.segmented { background: rgba(0,0,0,0.25); border-color: var(--glass-line); }
.segmented button.on { background: var(--grad-primary); box-shadow: 0 6px 14px -6px rgba(25,55,240,0.8), inset 0 1px 0 rgba(255,255,255,0.25); }
.badge { font-weight: 700; letter-spacing: 0.005em; }
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .9; }
.badge--sign::before, .badge--rejected::before { box-shadow: 0 0 8px currentColor; }

/* ---------- Campos ---------- */
.input, .textarea, .search { background: rgba(0,0,0,0.28); border-color: var(--c-line-control); transition: border-color .2s, box-shadow .2s; }
.input:focus, .textarea:focus, .search:focus-within { border-color: var(--c-accent); box-shadow: 0 0 0 4px rgba(124,147,247,0.16); }
.input.is-ok { border-color: rgba(95,211,148,0.7); box-shadow: 0 0 0 4px rgba(95,211,148,0.10); }

/* ---------- Progreso ---------- */
.bar > span { background: linear-gradient(90deg, #5C77FF, var(--c-accent)); box-shadow: 0 0 10px rgba(124,147,247,0.6); }
.bar--ok > span { background: linear-gradient(90deg, #2FB872, var(--c-ok)); box-shadow: 0 0 10px rgba(95,211,148,0.5); }
.ring { background: conic-gradient(#5C77FF 0%, var(--c-accent) calc(var(--p) * 1%), rgba(124,147,247,0.14) 0); box-shadow: 0 0 24px -6px rgba(124,147,247,0.5); }
.ring > span { background: var(--c-surface); font-size: 18px; letter-spacing: -0.03em; }

/* ---------- Papel ---------- */
.pdf-page, .paper { box-shadow: 0 24px 50px -24px rgba(0,0,0,0.8), 0 0 0 1px rgba(255,255,255,0.04); }

/* ---------- Entrada de pantalla ---------- */
.view > .screen.entrar { animation: entrar .32s cubic-bezier(.2,.8,.2,1); }
@keyframes entrar { from { opacity: 0; } to { opacity: 1; } }
.toast { background: var(--glass); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); border-color: var(--glass-line); font-family: var(--font-display); }
@media (prefers-reduced-motion: reduce) { .view > .screen.entrar { animation: none; } }

/* Logo oficial */
.brand__logo { display: block; height: 34px; width: auto; }
.brand__logo--sm { height: 28px; }