:root {
    --ink: #0f172a;
    --ink-soft: #1e2a3d;
    --color-primary: #dc2626;
    --color-primary-dark: #b91c1c;
    --color-primary-soft: #fdecec;
    --color-accent: #c8862a;
    --color-accent-soft: #fbf1e0;
    --bg: #eef0f4;
    --surface: #ffffff;
    --border: #e3e7ee;
    --border-strong: #d4d9e2;
    --text: #101828;
    --text-muted: #66707e;
    --text-faint: #94a0ae;
    --radius-xl: 0;
    --radius-md: 0;
    --spacing: 20px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
    --shadow-md: 0 6px 20px -6px rgba(16, 24, 40, 0.12), 0 2px 6px -2px rgba(16, 24, 40, 0.06);
    --shadow-lg: 0 20px 44px -14px rgba(16, 24, 40, 0.22);
    --ring: 0 0 0 3px rgba(220, 38, 38, 0.16);
}

* { box-sizing: border-box; }

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

html { background: var(--bg); }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    padding-bottom: 56px;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* ---------- Barra de idioma ---------- */
.lang-switch {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 4px;
    padding: 10px var(--spacing);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
.lang-btn {
    padding: 5px 13px;
    border: 1px solid var(--border-strong);
    background: var(--surface);
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.lang-btn:hover:not(.active) { border-color: var(--color-primary); color: var(--color-primary); }
.lang-btn.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

/* ---------- Cabecera ---------- */
.app-header {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--surface);
    color: var(--text);
    padding: 14px 118px 14px 22px;
    border-bottom: 3px solid var(--color-primary);
}
.app-header .logo { height: 58px; width: auto; flex: 0 0 auto; }
.app-header h1 {
    flex: 1 1 auto;
    text-align: center;
    font-size: 1.1rem;
    margin: 0;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text);
}

/* ---------- Barra de idioma (dentro de la cabecera, esquina superior derecha) ---------- */
.lang-switch {
    position: absolute;
    top: 14px;
    right: var(--spacing);
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0;
    background: transparent;
    border-bottom: none;
}

/* ---------- Indicador de pasos ---------- */
.steps-indicator {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    max-width: 360px;
    margin: 0 auto;
    padding: 10px var(--spacing) 6px;
}
.step-dot {
    position: relative;
    flex: 0 0 auto;
    width: 30px; height: 30px;
    background: var(--surface);
    border: 2px solid var(--border-strong);
    color: var(--text-faint);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.78rem; font-weight: 700;
    z-index: 1;
    transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}
.step-dot:not(:last-child) { margin-right: 46px; }
.step-dot:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 100%;
    width: 46px;
    height: 2px;
    background: var(--border-strong);
    transform: translateY(-50%);
    z-index: -1;
    transition: background 0.25s ease;
}
.step-dot.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    box-shadow: var(--ring);
}
.step-dot.done { background: var(--ink); border-color: var(--ink); color: #fff; }
.step-dot.done:not(:last-child)::after { background: var(--ink); }

main { max-width: 560px; margin: 0 auto; padding: 8px var(--spacing) 0; }

.step { display: none; }
.step.active { display: block; animation: step-in 0.32s ease; }
@keyframes step-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.step > h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    margin: 20px 0 4px;
    letter-spacing: -0.01em;
}

fieldset {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 26px 24px 24px;
    margin: 22px 0;
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px 18px;
    align-items: start;
    min-width: 0; /* los <fieldset> traen min-width:min-content de fabrica en los
                     navegadores, lo que les impide encogerse dentro del grid y
                     provoca scroll horizontal en pantallas estrechas */
}
.fieldset-title {
    grid-column: 1 / -1;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
    padding: 0 0 16px;
    margin: 0 0 4px;
    border-bottom: 1px solid var(--border);
}
.fieldset-title::before {
    content: "";
    flex: 0 0 auto;
    width: 9px;
    height: 9px;
    background: var(--color-primary);
}

.required-hint {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin: 4px 0 0;
}
.req-mark {
    color: var(--color-primary);
    font-weight: 700;
}

label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0;
}

.field-wide { grid-column: span 2; }
.field-row-start { grid-column: 1; }
.field-compact input { max-width: 110px; }

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="time"],
input[type="datetime-local"],
input[type="number"],
select {
    display: block;
    width: 100%;
    margin-top: 7px;
    padding: 11px 13px;
    font-size: 0.94rem;
    font-family: inherit;
    border: 1.5px solid var(--border-strong);
    border-radius: var(--radius-md);
    background: #fbfcfe;
    color: var(--text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
input::placeholder { color: var(--text-faint); }
input:focus, select:focus {
    outline: none;
    border-color: var(--color-primary);
    background: #fff;
    box-shadow: var(--ring);
}
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%), linear-gradient(135deg, var(--text-muted) 50%, transparent 50%); background-position: calc(100% - 18px) center, calc(100% - 13px) center; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 34px; }

.section-label {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 9px;
    padding-top: 20px;
    margin: 0 0 -8px;
    border-top: 1px dashed var(--border-strong);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--color-accent);
}
.section-label::before { content: "\25C6"; font-size: 0.65rem; }

input[readonly] { background: #f0f2f5; color: var(--text-muted); border-style: dashed; }

fieldset > .field-label,
fieldset > .toggle-label,
fieldset > .yesno-group,
fieldset > .conditional-fields,
fieldset > .section-label {
    grid-column: 1 / -1;
}
.field-label { margin-bottom: -8px; font-weight: 700; color: var(--text); font-size: 0.85rem; }

.toggle-field { display: flex; flex-direction: column; gap: 7px; }
.toggle-field .field-label { grid-column: auto; margin-bottom: 0; font-size: 0.8rem; font-weight: 600; color: var(--text-muted); }
.toggle-field .yesno-group { grid-column: auto; margin-bottom: 0; }

.toggle-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.94rem;
    font-weight: 600;
    color: var(--text);
    padding: 4px 2px;
}
.toggle-label input { width: auto; accent-color: var(--color-primary); }

.yesno-group { display: flex; gap: 8px; margin-bottom: 0; }
.yesno-option {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 56px;
    padding: 6px 14px;
    border: 1.5px solid var(--border-strong);
    border-radius: var(--radius-md);
    background: #fbfcfe;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    margin-bottom: 0;
    position: relative;
    transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.yesno-option input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    cursor: pointer;
}
.yesno-option.selected {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

.conditional-fields {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px 18px;
    margin-top: 4px;
    padding: 18px 16px 2px;
    border-top: 1px dashed var(--border-strong);
}
.conditional-fields[hidden] { display: none; }

.legal-clauses {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 24px 24px 22px;
    margin: 22px 0;
    font-size: 0.85rem;
    color: var(--text);
    box-shadow: var(--shadow-md);
}
.legal-clauses h3 {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 0 0 16px;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text);
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}
.legal-clauses h3::before {
    content: "";
    flex: 0 0 auto;
    width: 9px;
    height: 9px;
    background: var(--color-accent);
}
table.clause-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 10px;
    font-size: 0.75rem;
}
table.clause-table td {
    padding: 13px 14px;
    vertical-align: middle;
    line-height: 1.5;
    background: #fbfcfe;
}
table.clause-table tr td:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); border-left: 3px solid var(--color-primary); }
table.clause-table tr td:last-child { border-radius: 0 var(--radius-md) var(--radius-md) 0; }
td.clause-text { width: 72%; color: var(--text); }
td.clause-text strong { color: var(--color-primary); }
td.clause-amount { width: 28%; text-align: right; white-space: nowrap; }
.clause-amount-value {
    display: inline-block;
    padding: 6px 14px;
    background: var(--color-accent-soft);
    color: #8a5c17;
    font-weight: 700;
    font-size: 0.82rem;
    white-space: nowrap;
}
.legal-text-note {
    margin: 16px 0 0;
    font-size: 0.76rem;
    color: var(--text-muted);
    font-style: italic;
}

.btn-primary, .btn-secondary {
    display: block;
    box-sizing: border-box;
    width: 100%;
    padding: 15px;
    font-size: 0.98rem;
    font-weight: 700;
    font-family: inherit;
    text-align: center;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: none;
    margin-bottom: 12px;
    cursor: pointer;
    letter-spacing: -0.003em;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.08s ease, box-shadow 0.15s ease;
}
.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { background: var(--border-strong); color: var(--text-faint); box-shadow: none; cursor: not-allowed; }
.btn-secondary { background: var(--surface); color: var(--text); border: 1.5px solid var(--border-strong); }
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

.step-actions { display: flex; flex-direction: column; gap: 0; }

.preview-box { margin-bottom: var(--spacing); }

/* La previsualizacion reutiliza la misma estructura visual que el formulario
   (paso 1): tarjetas tipo fieldset con grid de campos, para que el cliente
   reconozca exactamente los mismos datos con el mismo aspecto. */
.preview-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 26px 24px 24px;
    margin: 22px 0;
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px 18px;
    align-items: start;
}
.preview-card:first-child { margin-top: 0; }
.preview-field-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 7px;
}
.preview-field-value {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 11px 13px;
    font-size: 0.94rem;
    font-weight: 600;
    color: var(--text);
    background: #f0f2f5;
    border: 1.5px solid var(--border-strong);
    word-break: break-word;
}
.preview-box h3:first-child { margin-top: 0; }
.preview-row { display: flex; justify-content: space-between; gap: 10px; padding: 7px 0; border-bottom: 1px solid #f1f2f5; }
.preview-row:last-child { border-bottom: none; }
.preview-row .k { color: var(--text-muted); }
.preview-row .v { text-align: right; font-weight: 700; color: var(--text); }

.hint-text { color: var(--text-muted); font-size: 0.85rem; margin: 4px 0 12px; }

.signature-canvas {
    width: 100%;
    height: 220px;
    background: #fff;
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-xl);
    touch-action: none;
    margin-bottom: var(--spacing);
    box-shadow: var(--shadow-sm);
}

.done-box {
    text-align: center;
    padding: 48px 22px 40px;
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-top: 20px;
}
.done-box::before {
    content: "";
    display: block;
    width: 56px;
    height: 56px;
    margin: 0 auto 18px;
    background: var(--ink);
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/26px no-repeat;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/26px no-repeat;
}
.done-box h2 { color: var(--text); font-size: 1.15rem; margin: 0 0 4px; }
.done-box .contract-number { font-size: 1.7rem; font-weight: 800; color: var(--color-primary); margin: 12px 0; letter-spacing: -0.01em; }
.done-box p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.5; max-width: 380px; margin: 0 auto; }
.done-box.is-error::before {
    background: var(--color-primary);
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E") center/26px no-repeat;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E") center/26px no-repeat;
}
.done-box.is-error h2 { color: var(--color-primary-dark); }
.done-box .btn-primary { max-width: 320px; margin: 20px auto 0; }

.app-footer {
    max-width: 560px;
    margin: 28px auto 0;
    padding: 0 var(--spacing);
    text-align: center;
}
.app-footer a {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-decoration: none;
    border-bottom: 1px dashed var(--border-strong);
    padding-bottom: 1px;
    transition: color 0.15s ease, border-color 0.15s ease;
}
.app-footer a:hover { color: var(--color-primary); border-color: var(--color-primary); }

/* Desktop: el formulario queda muy estrecho a 560px en pantallas grandes;
   se ensancha solo a partir de 1024px, sin tocar movil/tablet. El grid de
   campos ya es responsive por si mismo (auto-fill), asi que al ensanchar
   el contenedor aparecen mas columnas de forma natural. */
@media (min-width: 1024px) {
    main,
    .app-footer {
        max-width: 1100px;
    }
}

/* ================= MOVIL (<=768px) =================
   Ajustes de comodidad tactil e iPhone. No toca la logica del formulario ni
   el layout de escritorio (que sigue viviendo en las reglas base + el media
   query de 1024px de arriba). */
@media (max-width: 768px) {
    :root { --spacing: 16px; }

    .app-header {
        padding: 10px 92px 10px 14px;
        gap: 10px;
    }
    .app-header .logo { height: 38px; }
    .app-header h1 { font-size: 0.96rem; }
    .lang-switch { top: 10px; right: 14px; }
    .lang-btn { padding: 5px 10px; font-size: 0.64rem; }

    .steps-indicator { padding: 10px 14px 6px; }

    main { padding: 8px var(--spacing) 0; }

    .step > h2 { font-size: 1rem; }

    /* Tarjetas (formulario, previsualizacion, clausulas): menos padding
       lateral para ganar ancho util, pero manteniendo aire suficiente. */
    fieldset,
    .preview-card,
    .legal-clauses {
        padding: 20px 16px 18px;
        margin: 16px 0;
    }
    .fieldset-title { font-size: 0.96rem; }
    .legal-clauses h3 { font-size: 0.9rem; }

    /* Inputs mas altos y con texto >=16px: evita que iOS haga zoom
       automatico al enfocar el campo, y da un area comoda para el dedo. */
    input[type="text"],
    input[type="email"],
    input[type="tel"],
    input[type="date"],
    input[type="time"],
    input[type="datetime-local"],
    input[type="number"],
    select {
        padding: 13px 14px;
        font-size: 1rem;
    }
    label { font-size: 0.82rem; }

    /* Objetivo de toque de al menos 44px de alto (checkbox 2o conductor,
       botones Si/No de Full Kasko / deposito / vehiculo de sustitucion). */
    .toggle-label {
        min-height: 44px;
        align-items: center;
        padding: 8px 2px;
    }
    .yesno-option {
        min-height: 44px;
        padding: 10px 16px;
    }

    .btn-primary, .btn-secondary {
        padding: 16px;
        font-size: 1rem;
    }
    .done-box .btn-primary { max-width: 100%; }

    .signature-canvas { height: 240px; }

    table.clause-table { font-size: 0.72rem; }
}

/* ================= MOVIL PEQUENO: iPhone y Android compactos (<=480px) ================= */
@media (max-width: 480px) {
    .app-header { padding: 8px 84px 8px 12px; gap: 8px; }
    .app-header .logo { height: 32px; }
    .app-header h1 { font-size: 0.88rem; }
    .lang-switch { right: 12px; }
    .lang-btn { padding: 4px 8px; font-size: 0.6rem; }

    .step-dot { width: 26px; height: 26px; font-size: 0.72rem; }
    .step-dot:not(:last-child) { margin-right: 34px; }
    .step-dot:not(:last-child)::after { width: 34px; }

    fieldset,
    .preview-card,
    .legal-clauses {
        padding: 18px 14px 16px;
    }

    /* Por debajo de ~480px el grid de campos (fieldset/preview-card/
       conditional-fields) ya solo cabe en 1 columna: un campo con
       field-wide (span 2) forzaria una columna implicita extra y
       desbordaria la pantalla, asi que se desactiva el span aqui. */
    .field-wide { grid-column: span 1; }
}