/* =========================================================================
 * estilo.css — Visualizador de algoritmos de ordenamiento
 * Estética basada en /plantilla: fondo pastel degradado, tarjetas blancas
 * redondeadas, números monoespaciados, código con línea activa resaltada.
 * ========================================================================= */

:root {
  --font-ui: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", Consolas, Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-ui);
  color: #1e293b;
  background:
    radial-gradient(1000px 600px at 0% 0%, #d9f3e2 0%, transparent 55%),
    radial-gradient(900px 700px at 100% 30%, #fbdde6 0%, transparent 55%),
    radial-gradient(800px 600px at 50% 100%, #dee3fb 0%, transparent 60%),
    #eef0f6;
  min-height: 100vh;
}

/* ============================ visualizador ============================ */
.sv-root {
  --c-a: #e5484d;
  --c-b: #3b82f6;
  --c-ok: #22c55e;
  --c-card: #ffffff;
  --c-text: #1e293b;
  --c-accent: #6366f1;
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 40px;
  outline: none;
}

.sv-topbadge {
  width: fit-content;
  margin: 0 auto 18px;
  background: rgba(255, 255, 255, .85);
  border-radius: 999px;
  padding: 8px 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2.5px;
  box-shadow: 0 4px 14px rgba(30, 41, 59, .07);
}
.sv-tb-a { color: var(--c-b); }
.sv-tb-dot { margin: 0 8px; color: #94a3b8; }
.sv-tb-b { color: var(--c-a); }

.sv-card {
  background: linear-gradient(140deg, rgba(233, 250, 239, .9), rgba(255, 255, 255, .92) 45%, rgba(252, 238, 243, .85));
  border-radius: 26px;
  box-shadow: 0 14px 38px rgba(30, 41, 59, .09);
  padding: 26px 28px;
  margin-bottom: 22px;
}

/* ------------------------------ cabecera ----------------------------- */
.sv-header { text-align: center; }
.sv-title { margin: 4px 0 12px; font-size: clamp(26px, 5vw, 38px); letter-spacing: -.5px; }
.sv-desc { margin: 0 auto 16px; max-width: 56ch; color: #475569; font-size: 15px; line-height: 1.55; }
.sv-arrays {
  font-family: var(--font-mono);
  font-size: clamp(12px, 2.6vw, 15px);
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px;
  margin-bottom: 16px;
}
.sv-arr-in { color: #334155; }
.sv-arr-arrow { color: #94a3b8; }
.sv-arr-out { color: #16a34a; font-weight: 600; }
.sv-badges { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.sv-badge {
  font-family: var(--font-mono); font-size: 15px; font-weight: 600;
  background: #fff; border-radius: 999px; padding: 9px 20px;
  box-shadow: 0 3px 10px rgba(30, 41, 59, .07);
  display: inline-flex; align-items: center; gap: 8px;
}
.sv-badge small { font-family: var(--font-ui); font-size: 10px; letter-spacing: 1.5px; color: #64748b; font-weight: 700; }
.sv-badge-time { color: var(--c-b); border: 1.5px solid color-mix(in srgb, var(--c-b) 35%, white); }
.sv-badge-space { color: #16a34a; border: 1.5px solid #bbe7c8; }
.sv-badge-stable { color: var(--c-accent); border: 1.5px solid #d5d3f7; }

/* --------------------------- vista previa ---------------------------- */
.sv-prev-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.sv-live { font-size: 11px; font-weight: 700; letter-spacing: 2px; color: #64748b; display: inline-flex; align-items: center; gap: 7px; }
.sv-live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-accent); display: inline-block; animation: sv-blink 1.6s infinite; }
@keyframes sv-blink { 50% { opacity: .35; } }
.sv-step { font-size: 12px; font-weight: 700; letter-spacing: 2px; color: #64748b; font-family: var(--font-mono); }

.sv-msg-wrap { display: flex; justify-content: center; min-height: 40px; margin-bottom: 10px; }
.sv-msg {
  font-family: var(--font-mono); font-size: 14px; font-weight: 600;
  background: #e9ecf2; color: #334155;
  border-radius: 12px; padding: 8px 18px;
  max-width: 100%; text-align: center;
  transition: background .25s, color .25s;
}
.sv-msg-info { background: color-mix(in srgb, var(--c-b) 14%, white); color: color-mix(in srgb, var(--c-b) 80%, black); }
.sv-msg-ok { background: color-mix(in srgb, var(--c-ok) 16%, white); color: color-mix(in srgb, var(--c-ok) 65%, black); }

/* escenario */
.sv-stage {
  display: flex; justify-content: center; align-items: center; gap: 10px;
  min-height: 214px; padding: 4px 0;
}
.sv-slot { display: flex; flex-direction: column; align-items: center; flex: 0 1 72px; min-width: 30px; }
.sv-xs .sv-slot { flex-basis: 44px; }
.sv-sm .sv-slot { flex-basis: 56px; }
.sv-stage { gap: clamp(4px, 1.4vw, 12px); }

.sv-ptr { height: 36px; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; }
.sv-ptr-bot { justify-content: flex-start; }
.sv-ptr-badge {
  font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: #fff;
  border-radius: 8px; padding: 3px 8px; line-height: 1.2;
}
.sv-ptr-a { background: var(--c-a); box-shadow: 0 3px 8px color-mix(in srgb, var(--c-a) 45%, transparent); }
.sv-ptr-b { background: var(--c-b); box-shadow: 0 3px 8px color-mix(in srgb, var(--c-b) 45%, transparent); }
.sv-ptr-line { width: 2px; height: 9px; }
.sv-ptr-line-a { background: var(--c-a); }
.sv-ptr-line-b { background: var(--c-b); }

/* elemento — forma tarjeta (por defecto) */
.sv-el {
  width: 100%; aspect-ratio: 1 / 1.1;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-card); color: var(--c-text);
  border: 2px solid transparent; border-radius: 16px;
  box-shadow: 0 6px 16px rgba(30, 41, 59, .09);
  font-family: var(--font-mono); font-weight: 700;
  font-size: clamp(15px, 3.4vw, 28px);
  transition: background .2s, border-color .2s, opacity .2s;
  position: relative;
}
.sv-xs .sv-el { font-size: clamp(11px, 2vw, 16px); border-radius: 10px; }
.sv-sm .sv-el { font-size: clamp(13px, 2.6vw, 22px); border-radius: 13px; }

/* forma barra */
.sv-shape-bar { align-items: flex-end; }
.sv-shape-bar .sv-slot { justify-content: flex-end; }
.sv-shape-bar .sv-el {
  aspect-ratio: auto; width: 100%; border-radius: 8px 8px 4px 4px;
  align-items: flex-start; padding-top: 3px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--c-accent) 22%, white), var(--c-card));
  font-size: clamp(10px, 2vw, 15px);
}
.sv-shape-bar .sv-val { pointer-events: none; }

/* forma círculo */
.sv-shape-circle .sv-el { aspect-ratio: 1; border-radius: 50%; }

/* estados */
.sv-cmp-a { border-color: var(--c-a) !important; box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-a) 18%, transparent), 0 6px 16px rgba(30,41,59,.09); animation: sv-pop .3s; }
.sv-cmp-b { border-color: var(--c-b) !important; box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-b) 18%, transparent), 0 6px 16px rgba(30,41,59,.09); animation: sv-pop .3s; }
.sv-key   { border-color: #f59e0b !important; background: #fef6e7 !important; }
.sv-ok    { background: var(--c-ok) !important; color: #fff !important; }
.sv-write { background: var(--c-ok) !important; color: #fff !important; animation: sv-pop .35s; }
.sv-dim   { opacity: .38; }
.sv-under-l { box-shadow: 0 5px 0 -1px color-mix(in srgb, var(--c-ok) 75%, white), 0 6px 16px rgba(30,41,59,.09); }
.sv-under-r { box-shadow: 0 5px 0 -1px color-mix(in srgb, var(--c-b) 65%, white), 0 6px 16px rgba(30,41,59,.09); }
@keyframes sv-pop { 40% { transform: scale(1.08); } }

.sv-idx { margin-top: 8px; font-family: var(--font-mono); font-size: 12px; color: #94a3b8; }

/* buffer de mezcla */
.sv-buffer-wrap { min-height: 0; text-align: center; }
.sv-buffer-label { font-size: 10px; font-weight: 700; letter-spacing: 2px; color: #94a3b8; margin: 6px 0 8px; }
.sv-buffer {
  display: inline-flex; gap: 6px; padding: 8px;
  border: 2px dashed #cbd5e1; border-radius: 14px; min-height: 52px;
}
.sv-buf-cell {
  width: 38px; height: 38px; border-radius: 10px; background: #eef1f6;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 700; font-size: 16px;
}
.sv-buf-full { background: var(--c-ok); color: #fff; animation: sv-pop .3s; }

/* estadísticas */
.sv-stats { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.sv-stat {
  background: rgba(255, 255, 255, .8); border-radius: 999px; padding: 6px 14px;
  font-family: var(--font-mono); font-size: 14px; font-weight: 700; color: #334155;
  display: inline-flex; align-items: center; gap: 8px;
  box-shadow: 0 2px 8px rgba(30, 41, 59, .06);
}
.sv-stat small { font-family: var(--font-ui); font-size: 9px; letter-spacing: 1.5px; color: #94a3b8; }

/* controles */
.sv-controls { margin-top: 18px; border-top: 1px solid rgba(148, 163, 184, .25); padding-top: 14px; }
.sv-scrub { width: 100%; accent-color: var(--c-accent); cursor: pointer; margin-bottom: 10px; }
.sv-ctl-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.sv-btns { display: flex; gap: 6px; }
.sv-btn {
  width: 40px; height: 40px; border-radius: 12px; border: none; cursor: pointer;
  background: #fff; color: #334155; font-size: 15px;
  box-shadow: 0 3px 10px rgba(30, 41, 59, .08);
  transition: transform .12s, background .15s;
}
.sv-btn:hover { transform: translateY(-1px); background: #f1f5f9; }
.sv-btn-play { background: var(--c-accent); color: #fff; width: 52px; }
.sv-btn-play:hover { background: color-mix(in srgb, var(--c-accent) 85%, black); }
.sv-ctl-label { font-size: 9px; font-weight: 700; letter-spacing: 1.5px; color: #94a3b8; }
.sv-speed { display: flex; align-items: center; gap: 8px; }
.sv-speed-range { width: 90px; accent-color: var(--c-accent); cursor: pointer; }
.sv-speed-label { font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--c-accent); min-width: 34px; }
.sv-order { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.sv-obtn {
  border: 1.5px solid #dbe1ea; background: #fff; border-radius: 999px;
  padding: 7px 12px; font-size: 12px; font-weight: 600; color: #475569; cursor: pointer;
  transition: all .15s;
}
.sv-obtn:hover { border-color: var(--c-accent); }
.sv-obtn.on { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }

/* ------------------------------ código ------------------------------- */
.sv-code { padding: 20px 22px; }
.sv-code-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.sv-dots { display: inline-flex; gap: 6px; }
.sv-dots i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.sv-dots i:nth-child(1) { background: #f16a5d; }
.sv-dots i:nth-child(2) { background: #f5bd4f; }
.sv-dots i:nth-child(3) { background: #58c55c; }
.sv-filename { font-family: var(--font-mono); font-size: 13px; color: #64748b; flex: 1; }
.sv-lang {
  font-family: var(--font-mono); font-size: 11px; font-weight: 700;
  background: color-mix(in srgb, var(--c-b) 14%, white); color: var(--c-b);
  border-radius: 6px; padding: 3px 8px;
}
.sv-code-body { font-family: var(--font-mono); font-size: 14px; line-height: 1.5; overflow-x: auto; }
.sv-cl { display: flex; gap: 14px; padding: 3px 8px; border-radius: 8px; border-left: 3px solid transparent; white-space: pre; }
.sv-cl.on { background: color-mix(in srgb, var(--c-ok) 13%, white); border-left-color: var(--c-ok); }
.sv-ln { color: #b0b9c6; min-width: 2ch; text-align: right; user-select: none; }
.sv-cl code { color: #334155; }
.tok-kw { color: #7c3aed; font-weight: 600; }
.tok-num { color: #ea580c; }
.tok-str { color: #16a34a; }
.tok-fn { color: #2563eb; font-weight: 600; }
.tok-com { color: #94a3b8; font-style: italic; }

.sv-footer { text-align: center; font-size: 12px; color: #94a3b8; letter-spacing: 1px; }

/* ============================ configurador ============================ */
.cfg-layout { display: grid; grid-template-columns: 330px 1fr; gap: 0; min-height: 100vh; }
.cfg-panel {
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(8px);
  border-right: 1px solid rgba(148, 163, 184, .25);
  padding: 22px 20px 40px;
  overflow-y: auto;
  max-height: 100vh;
  position: sticky; top: 0;
}
.cfg-panel h2 { margin: 0 0 4px; font-size: 19px; }
.cfg-sub { margin: 0 0 18px; font-size: 12.5px; color: #64748b; line-height: 1.5; }
.cfg-group { margin-bottom: 18px; }
.cfg-group > label, .cfg-legend {
  display: block; font-size: 10.5px; font-weight: 700; letter-spacing: 1.5px;
  color: #64748b; margin-bottom: 7px; text-transform: uppercase;
}
.cfg-group select, .cfg-group input[type="text"], .cfg-group input[type="number"] {
  width: 100%; padding: 9px 12px; border-radius: 10px; border: 1.5px solid #dbe1ea;
  font-family: var(--font-mono); font-size: 13px; background: #fff; color: #1e293b;
}
.cfg-group select { font-family: var(--font-ui); }
.cfg-group select:focus, .cfg-group input:focus { outline: none; border-color: #6366f1; }
.cfg-hint { font-size: 11px; color: #94a3b8; margin-top: 5px; line-height: 1.4; }
.cfg-row { display: flex; gap: 8px; align-items: center; }
.cfg-row > * { flex: 1; }
.cfg-colors { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.cfg-color { display: flex; align-items: center; gap: 8px; background: #fff; border: 1.5px solid #dbe1ea; border-radius: 10px; padding: 5px 8px; }
.cfg-color input[type="color"] { width: 30px; height: 30px; border: none; background: none; padding: 0; cursor: pointer; }
.cfg-color span { font-size: 11.5px; color: #475569; }
.cfg-checks label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: #334155; margin-bottom: 6px; cursor: pointer; }
.cfg-checks input { accent-color: #6366f1; width: 15px; height: 15px; }
.cfg-btn {
  width: 100%; padding: 10px 14px; margin-bottom: 8px;
  border-radius: 12px; border: 1.5px solid #dbe1ea; background: #fff;
  font-size: 13px; font-weight: 600; color: #334155; cursor: pointer;
  display: flex; align-items: center; gap: 8px; justify-content: center;
  transition: all .15s;
}
.cfg-btn:hover { border-color: #6366f1; color: #4f46e5; }
.cfg-btn-primary { background: #6366f1; border-color: #6366f1; color: #fff; }
.cfg-btn-primary:hover { background: #4f46e5; color: #fff; }
.cfg-sep { border: none; border-top: 1px solid rgba(148, 163, 184, .3); margin: 18px 0; }
.cfg-main { overflow-y: auto; max-height: 100vh; }
.cfg-toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: #1e293b; color: #fff; font-size: 13px; padding: 10px 20px;
  border-radius: 999px; opacity: 0; pointer-events: none; transition: opacity .3s;
  z-index: 50;
}
.cfg-toast.show { opacity: 1; }

@media (max-width: 900px) {
  .cfg-layout { grid-template-columns: 1fr; }
  .cfg-panel { position: static; max-height: none; border-right: none; border-bottom: 1px solid rgba(148,163,184,.25); }
  .cfg-main { max-height: none; }
}