/* ============================================================
   CARTAS ZENER — Estilos principales
   Estética: Laboratorio parapsicológico años 30-50
   Papel envejecido, tinta negra, tipografía académica/máquina
   ============================================================ */

/* --- Variables -------------------------------------------- */
:root {
    --bg:            #f5f0e8;
    --bg-card:       #faf7f2;
    --bg-dark:       #1a1410;
    --ink:           #1a1410;
    --ink-dim:       #4a4035;
    --ink-faint:     #8a7e6e;
    --red:           #8b1a1a;
    --red-light:     #c0392b;
    --green:         #1a5c2a;
    --border:        #1a1410;
    --border-light:  rgba(26,20,16,0.2);
    --gold:          #8b6914;
    --shadow:        0 4px 24px rgba(26,20,16,0.18);
    --radius:        2px;
    --font-title:    'Special Elite', cursive;
    --font-body:     'Libre Baskerville', serif;
    --font-mono:     'Share Tech Mono', monospace;
    --transition:    0.2s ease;
}

/* --- Reset mínimo ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* --- Wrapper raíz ----------------------------------------- */
#zener-app {
    background-color: var(--bg);
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23noise)' opacity='0.045'/%3E%3C/svg%3E");
    min-height: 100vh;
    width: 100%;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    position: relative;
}

/* --- Contenedor ------------------------------------------- */
.zener-container {
    max-width: 700px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 24px 60px;
}

/* --- Header ----------------------------------------------- */
.zener-header {
    text-align: center;
    margin-bottom: 36px;
}

.lab-stamp {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--ink-faint);
    text-transform: uppercase;
    margin-bottom: 16px;
    border: 1px solid var(--border-light);
    display: inline-block;
    padding: 4px 14px;
}

.zener-title {
    font-family: var(--font-title);
    font-size: clamp(28px, 6vw, 46px);
    font-weight: 400;
    letter-spacing: 2px;
    color: var(--ink);
    line-height: 1.15;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.zener-subtitle {
    font-family: var(--font-body);
    font-style: italic;
    font-size: 15px;
    color: var(--ink-dim);
    margin-bottom: 20px;
}

.header-rule {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}
.header-rule span { flex: 1; height: 1px; background: var(--ink); max-width: 120px; }
.rule-diamond { color: var(--ink); font-size: 10px; }

/* --- Steps ------------------------------------------------ */
.z-step { display: none; }
.z-step.active { display: block; }

/* --- Intro ------------------------------------------------ */
.intro-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 36px;
    margin-top: 28px;
    position: relative;
}
.intro-box::before {
    content: '';
    position: absolute;
    top: 4px; left: 4px; right: 4px; bottom: 4px;
    border: 1px solid var(--border-light);
    pointer-events: none;
}

.intro-desc {
    font-size: 15px;
    color: var(--ink-dim);
    line-height: 1.8;
    margin-bottom: 28px;
    text-align: center;
}

.rounds-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-bottom: 12px;
    text-align: center;
}

.rounds-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 28px;
}

.btn-rounds {
    font-family: var(--font-mono);
    font-size: 14px;
    /*width: 56px;*/
    height: 40px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--ink);
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 1px;
}
.btn-rounds:hover { background: var(--ink); color: var(--bg); }
.btn-rounds.active {
    background: var(--ink);
    color: var(--bg);
    font-weight: 700;
}

/* --- Botón primario --------------------------------------- */
.btn-primary {
    display: block;
    width: 100%;
    font-family: var(--font-title);
    font-size: 15px;
    letter-spacing: 3px;
    text-transform: uppercase;
    padding: 14px 24px;
    background: var(--ink);
    color: var(--bg);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}
.btn-primary:hover { background: var(--ink-dim); }
.btn-primary:active { transform: translateY(1px); }

/* --- Paso Test -------------------------------------------- */
.test-header {
    margin-top: 20px;
    margin-bottom: 24px;
}

.progress-bar-wrap {
    height: 3px;
    background: var(--border-light);
    margin-bottom: 8px;
    position: relative;
}
.progress-bar-fill {
    height: 100%;
    background: var(--ink);
    width: 0%;
    transition: width 0.4s ease;
}

.test-counter {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ink-faint);
    letter-spacing: 2px;
    text-align: right;
}
.counter-sep { margin: 0 2px; }

/* --- Carta boca abajo ------------------------------------- */
.card-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 32px;
}

.card-back {
    width: 140px;
    height: 196px;
    background: var(--bg-card);
    border: 2px solid var(--ink);
    position: relative;
    cursor: default;
    box-shadow: 4px 4px 0 var(--ink-dim);
    margin-bottom: 14px;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card-back-pattern {
    position: absolute;
    inset: 8px;
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
}
.cbp-border {
    position: absolute;
    inset: 5px;
    border: 1px dashed var(--border-light);
}
.cbp-inner {
    display: flex;
    align-items: center;
    justify-content: center;
}
.cbp-symbol {
    font-family: var(--font-mono);
    font-size: 42px;
    color: var(--ink-faint);
    opacity: 0.3;
    user-select: none;
}

.card-instruction {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--ink-faint);
    text-align: center;
}

/* --- Opciones de símbolo ---------------------------------- */
.symbol-choices {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.choice-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 100px;
    padding: 16px 10px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
    color: var(--ink);
    position: relative;
}
.choice-btn:hover {
    background: var(--ink);
    color: var(--bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26,20,16,0.2);
}
.choice-btn:active { transform: translateY(0); }

.choice-svg {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.choice-svg svg {
    width: 100%;
    height: 100%;
}

.choice-name {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: inherit;
}

/* --- Reveal ----------------------------------------------- */
#z-step-reveal {
    text-align: center;
    padding: 40px 0;
}

.reveal-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.reveal-card {
    width: 140px;
    height: 196px;
    background: var(--bg-card);
    border: 2px solid var(--ink);
    box-shadow: 4px 4px 0 var(--ink-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: revealFlip 0.35s ease forwards;
}

@keyframes revealFlip {
    0%   { transform: scaleX(0); opacity: 0; }
    60%  { transform: scaleX(1.05); }
    100% { transform: scaleX(1); opacity: 1; }
}

.reveal-svg {
    width: 80px;
    height: 80px;
    color: var(--ink);
}
.reveal-svg svg {
    width: 100%;
    height: 100%;
}

.reveal-card.correct   { border-color: var(--green); color: var(--green); box-shadow: 4px 4px 0 var(--green); }
.reveal-card.incorrect { border-color: var(--red);   color: var(--red);   box-shadow: 4px 4px 0 var(--red); }
.reveal-card.correct .reveal-svg   { color: var(--green); }
.reveal-card.incorrect .reveal-svg { color: var(--red); }

.reveal-verdict {
    font-family: var(--font-title);
    font-size: 22px;
    letter-spacing: 3px;
    text-transform: uppercase;
}
.reveal-verdict.correct   { color: var(--green); }
.reveal-verdict.incorrect { color: var(--red); }

/* --- Resultado Final -------------------------------------- */
#z-step-result { margin-top: 20px; }

.result-title {
    font-family: var(--font-title);
    font-size: 22px;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 24px;
    color: var(--ink);
}

.report-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 0;
    margin-bottom: 24px;
    position: relative;
}
.report-card::before {
    content: '';
    position: absolute;
    top: 5px; left: 5px; right: 5px; bottom: 5px;
    border: 1px solid var(--border-light);
    pointer-events: none;
}

.report-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 10px 20px;
    border-bottom: 1px solid var(--border-light);
}
.report-row:last-child { border-bottom: none; }

.report-label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--ink-faint);
}

.report-value {
    font-family: var(--font-mono);
    font-size: 16px;
    color: var(--ink);
    font-weight: 700;
}
.report-value.highlight { color: var(--red); font-size: 20px; }

.report-divider {
    height: 2px;
    background: var(--ink);
    margin: 0 20px;
}

.verdict-row { padding: 14px 20px; }
.verdict-value { font-size: 13px; font-weight: 400; text-align: right; max-width: 55%; color: var(--ink-dim); }

/* --- ESP Meter -------------------------------------------- */
.esp-meter {
    margin-bottom: 28px;
}

.esp-meter-track {
    height: 8px;
    background: var(--border-light);
    border: 1px solid var(--border);
    position: relative;
    margin-bottom: 6px;
}
.esp-meter-fill {
    height: 100%;
    background: linear-gradient(to right, var(--ink-faint), var(--ink));
    width: 0%;
    transition: width 1s ease;
}
.esp-chance-mark {
    position: absolute;
    top: -3px;
    width: 2px;
    height: 14px;
    background: var(--red);
    left: 20%; /* 20% = azar (1/5) — se setea por JS */
    transform: translateX(-50%);
}
.esp-chance-mark::after {
    content: 'AZAR';
    position: absolute;
    bottom: -18px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 8px;
    color: var(--red);
    white-space: nowrap;
    letter-spacing: 1px;
}

.esp-meter-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 22px;
}
.esp-meter-labels span {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--ink-faint);
}

/* --- Historial -------------------------------------------- */
.history-section { margin-bottom: 28px; }

.history-title {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 6px;
}

.history-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.history-item {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-light);
    position: relative;
    title: '';
}
.history-item svg { width: 20px; height: 20px; }
.history-item.hit  { border-color: var(--green); color: var(--green); background: rgba(26,92,42,0.07); }
.history-item.miss { border-color: var(--border-light); color: var(--ink-faint); }

/* --- Result actions --------------------------------------- */
.result-actions {
    margin-top: 8px;
}

/* --- Animaciones ----------------------------------------- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.z-step.active {
    animation: fadeInUp 0.3s ease forwards;
}

/* --- Responsive ------------------------------------------ */
@media (max-width: 520px) {
    .zener-container { padding: 24px 16px 48px; }
    .intro-box { padding: 24px 18px; }
    .symbol-choices { gap: 8px; }
    .choice-btn { width: 80px; padding: 12px 6px 10px; }
    .choice-svg { width: 40px; height: 40px; }
    .card-back { width: 120px; height: 168px; }
}