/* ── Reset mínimo ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; }
input, select, button { font-family: inherit; }

/* ── Paleta ───────────────────────────────────────────────── */
:root {
  --bg: #0e0e0c;
  --bg-alt: #16160f;
  --bg-card: #1a1916;
  --bg-input: #1f1e1a;
  --border: #2c2a24;
  --border-strong: #3a3830;
  --fg: #f2efe8;
  --fg-soft: #b8b3a7;
  --fg-muted: #75716a;
  --brand: #c8962a;
  --brand-soft: rgba(200, 150, 42, 0.12);
  --rojo: #c24a2a;
  --verde: #3a7a4a;
}

/* ── Body ────────────────────────────────────────────────── */
body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.app {
  max-width: 560px;
  margin: 0 auto;
  padding: 40px 20px 64px;
}

/* ── Brand header ─────────────────────────────────────────── */
.brand { text-align: center; margin-bottom: 32px; }
.brand h1 {
  color: var(--brand);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin: 0;
}
.subtitle {
  color: var(--fg-soft);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 6px 0 0;
}

/* ── Estados ─────────────────────────────────────────────── */
.estado { display: none; }
.estado.is-active { display: block; }

/* ── Form ─────────────────────────────────────────────────── */
.field { display: block; margin-bottom: 18px; }
.field > span {
  display: block;
  color: var(--fg-soft);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
input[type="text"],
select {
  width: 100%;
  padding: 13px 14px;
  font-size: 16px;
  color: var(--fg);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.15s, background 0.15s;
}
input[type="text"]:focus,
select:focus {
  outline: none;
  border-color: var(--brand);
  background: var(--bg-card);
}
select {
  appearance: none;
  -webkit-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--fg-soft) 50%),
    linear-gradient(135deg, var(--fg-soft) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}

/* ── Dropzone ─────────────────────────────────────────────── */
.dropzone {
  border: 1.5px dashed var(--border-strong);
  border-radius: 8px;
  padding: 28px 18px;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
  background: var(--bg-card);
}
.dropzone:hover,
.dropzone:focus,
.dropzone.is-drag {
  border-color: var(--brand);
  background: var(--brand-soft);
  outline: none;
}
.dropzone.has-file { border-style: solid; border-color: var(--brand); }
.dropzone-title {
  color: var(--fg);
  font-size: 14px;
  font-weight: 500;
  margin: 0;
}
.dropzone-sub {
  color: var(--fg-muted);
  font-size: 12px;
  margin: 6px 0 0;
}
.dropzone-file {
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  margin: 12px 0 0;
  word-break: break-all;
}
.tip {
  color: var(--fg-soft);
  font-size: 12px;
  line-height: 1.5;
  background: var(--brand-soft);
  border-left: 2px solid var(--brand);
  padding: 10px 12px;
  margin: 12px 0 0;
  border-radius: 0 4px 4px 0;
}
.tip strong { color: var(--fg); }
.tip em { color: var(--brand); font-style: normal; font-weight: 500; }

/* ── Botones ─────────────────────────────────────────────── */
.btn-primary {
  display: block;
  width: 100%;
  background: var(--brand);
  color: #1a1500;
  border: none;
  border-radius: 6px;
  padding: 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
  transition: opacity 0.15s, transform 0.15s;
  margin-top: 20px;
}
.btn-primary:hover { opacity: 0.92; }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-secondary {
  background: transparent;
  color: var(--fg-soft);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  transition: border-color 0.15s, color 0.15s;
}
.btn-secondary:hover { border-color: var(--brand); color: var(--fg); }

/* ── Errores ─────────────────────────────────────────────── */
.form-error {
  color: var(--rojo);
  background: rgba(194, 74, 42, 0.12);
  border: 1px solid rgba(194, 74, 42, 0.3);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 13px;
  margin: 14px 0 0;
}

/* ── Estado procesando ───────────────────────────────────── */
#estado-procesando { text-align: center; padding: 30px 0; }
.spinner {
  width: 64px;
  height: 64px;
  border: 4px solid var(--border);
  border-top-color: var(--brand);
  border-radius: 50%;
  margin: 0 auto 24px;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.procesando-mensaje {
  color: var(--fg);
  font-size: 17px;
  font-weight: 500;
  margin: 0 0 24px;
  min-height: 1.4em;
}
.progress {
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  height: 3px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.progress > span {
  display: block;
  height: 100%;
  width: 30%;
  background: var(--brand);
  border-radius: 999px;
  animation: slide 1.8s ease-in-out infinite;
}
@keyframes slide {
  0% { margin-left: -30%; }
  100% { margin-left: 100%; }
}
.procesando-nota {
  color: var(--fg-muted);
  font-size: 12px;
  margin: 24px auto 0;
  max-width: 360px;
}

/* ── Estado resultado ────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 14px;
}
.card-label {
  color: var(--fg-soft);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin: 0 0 12px;
}
.cliente-tipo { color: var(--brand); font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; margin: 0 0 6px; font-weight: 600; }
.cliente-nombre { color: var(--fg); font-size: 22px; font-weight: 700; margin: 0; letter-spacing: -0.5px; }

.madurez-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.madurez-num {
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  margin: 0;
  letter-spacing: -2px;
}
.madurez-num.color-rojo  { color: var(--rojo); }
.madurez-num.color-brand { color: var(--brand); }
.madurez-num.color-verde { color: var(--verde); }
.madurez-sufijo { color: var(--fg-muted); font-size: 22px; font-weight: 400; letter-spacing: -1px; }
.madurez-barra {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 4px;
  min-width: 180px;
}
.madurez-barra .seg {
  height: 14px;
  background: var(--border);
  border-radius: 2px;
}
.madurez-barra .seg.lleno { background: var(--brand); }
.madurez-barra .seg.color-rojo  { background: var(--rojo); }
.madurez-barra .seg.color-verde { background: var(--verde); }

.dolores { margin-bottom: 14px; }
.dolor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  margin-bottom: 10px;
}
.dolor-titulo { color: var(--fg); font-size: 15px; font-weight: 600; margin: 0; }
.dolor-impacto {
  display: inline-block;
  background: var(--brand);
  color: #1a1500;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 3px 7px;
  border-radius: 3px;
  margin-left: 8px;
  vertical-align: 2px;
}
.dolor-impacto.alto { background: var(--rojo); color: white; }
.dolor-impacto.bajo { background: var(--border-strong); color: var(--fg-soft); }
.dolor-desc { color: var(--fg-soft); font-size: 13px; margin: 8px 0 0; line-height: 1.55; }
.dolor-cita {
  color: var(--fg-soft);
  font-style: italic;
  font-size: 13px;
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--brand);
}

.semaforo { text-align: center; padding: 28px 20px; }
.semaforo-titulo {
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.5px;
}
.semaforo-razon {
  color: var(--fg-soft);
  font-size: 13px;
  margin: 10px 0 0;
  line-height: 1.55;
}
.semaforo.verde   { background: var(--verde); border-color: var(--verde); }
.semaforo.brand   { background: var(--brand); border-color: var(--brand); }
.semaforo.rojo    { background: var(--rojo);  border-color: var(--rojo); }
.semaforo.verde .semaforo-titulo,
.semaforo.brand .semaforo-titulo,
.semaforo.rojo  .semaforo-titulo,
.semaforo.verde .semaforo-razon,
.semaforo.brand .semaforo-razon,
.semaforo.rojo  .semaforo-razon { color: white; }
.semaforo.brand .semaforo-titulo,
.semaforo.brand .semaforo-razon { color: #1a1500; }

.acciones { display: flex; gap: 10px; align-items: center; margin-top: 20px; flex-wrap: wrap; }
.acciones .btn-primary { flex: 1; margin-top: 0; }
.acciones .btn-secondary { flex: 0 0 auto; }

/* ── Accesibilidad ───────────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 480px) {
  .app { padding: 24px 14px 40px; }
  .brand h1 { font-size: 28px; }
  .madurez-num { font-size: 44px; }
}