/* 3BN — Validador público de certificados (validar_certificado.php). Glassmorphism oscuro, paleta de la portada. */
:root {
    --vc-bg: #05080f;
    --vc-panel: rgba(11, 21, 48, 0.62);
    --vc-line: rgba(0, 240, 255, 0.18);
    --vc-ink: #f1f5f9;
    --vc-ink-2: #cbd5e1;
    --vc-muted: #8b9bb4;
    --vc-cyan: #00f0ff;
    --vc-green: #00ff87;
    --vc-crimson: #ff3b30;
    --vc-amber: #ff9f1c;
    --f-display: 'Chakra Petch', 'Space Grotesk', sans-serif;
    --f-body: 'Space Grotesk', sans-serif;
    --f-mono: 'JetBrains Mono', monospace;
}

* {
    box-sizing: border-box;
}

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

.vc-body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--vc-ink);
    font-family: var(--f-body);
    background:
        radial-gradient(900px 500px at 15% -10%, rgba(0, 87, 255, 0.22), transparent 60%),
        radial-gradient(700px 420px at 100% 10%, rgba(0, 240, 255, 0.12), transparent 60%),
        linear-gradient(180deg, #05080f 0%, #081024 55%, #05080f 100%);
}

.material-symbols-outlined {
    font-size: 20px;
    line-height: 1;
    vertical-align: middle;
}

/* Barra superior */
.vc-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(5, 8, 15, 0.7);
    backdrop-filter: blur(14px);
}

.vc-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--vc-ink-2);
    font-family: var(--f-display);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-decoration: none;
    transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.vc-brand:hover {
    border-color: var(--vc-cyan);
    color: var(--vc-cyan);
    transform: translateX(-2px);
}

.vc-top-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--vc-cyan);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Contenido */
.vc-wrap {
    width: 100%;
    max-width: 860px;
    margin: 0 auto;
    padding: 48px 20px 64px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    flex: 1;
}

.vc-hero,
.vc-result,
.vc-step {
    background: var(--vc-panel);
    border: 1px solid var(--vc-line);
    border-radius: 22px;
    backdrop-filter: blur(18px);
    box-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.8);
}

.vc-hero {
    padding: 36px;
}

.vc-kicker {
    font-family: var(--f-mono);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--vc-cyan);
}

.vc-hero h1 {
    margin: 10px 0 12px;
    font-family: var(--f-display);
    font-size: clamp(30px, 5vw, 44px);
    line-height: 1.1;
}

.vc-hero p {
    margin: 0;
    color: var(--vc-ink-2);
    line-height: 1.65;
}

.vc-hero code,
.vc-mono {
    font-family: var(--f-mono);
    color: var(--vc-cyan);
    word-break: break-all;
}

.vc-form {
    margin-top: 26px;
}

.vc-label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--vc-ink-2);
}

.vc-field {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 8px 8px 16px;
    border-radius: 16px;
    background: rgba(5, 8, 15, 0.85);
    border: 1.5px solid rgba(0, 240, 255, 0.3);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.vc-field:focus-within {
    border-color: var(--vc-cyan);
    box-shadow: 0 0 0 4px rgba(0, 240, 255, 0.12);
}

.vc-field-ic {
    color: var(--vc-cyan);
}

.vc-field input {
    flex: 1;
    min-width: 0;
    padding: 12px 4px;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--vc-ink);
    font-family: var(--f-mono);
    font-size: 17px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.vc-field input::placeholder {
    color: #475569;
}

.vc-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 22px;
    border: 0;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--vc-cyan), var(--vc-green));
    color: #05080f;
    font-family: var(--f-display);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    box-shadow: 0 10px 28px -8px rgba(0, 240, 255, 0.6);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.vc-btn:hover,
.vc-btn:focus-visible {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 14px 34px -6px rgba(0, 255, 135, 0.65);
    outline: none;
}

.vc-help {
    margin: 10px 0 0 !important;
    font-size: 13px;
    color: var(--vc-muted) !important;
}

/* Resultado */
.vc-result {
    padding: 30px;
    animation: vcIn 0.35s ease;
}

.vc-result.is-ok {
    border-color: rgba(0, 255, 135, 0.45);
    box-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.8), 0 0 40px -12px rgba(0, 255, 135, 0.45);
}

.vc-result.is-ko {
    border-color: rgba(255, 59, 48, 0.5);
}

.vc-result.is-warn {
    border-color: rgba(255, 159, 28, 0.45);
}

.vc-result-head {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.vc-seal {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: grid;
    place-items: center;
}

.vc-seal .material-symbols-outlined {
    font-size: 36px;
}

.is-ok .vc-seal {
    background: rgba(0, 255, 135, 0.12);
    color: var(--vc-green);
}

.is-ko .vc-seal {
    background: rgba(255, 59, 48, 0.12);
    color: var(--vc-crimson);
}

.is-warn .vc-seal {
    background: rgba(255, 159, 28, 0.12);
    color: var(--vc-amber);
}

.vc-status {
    font-family: var(--f-mono);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.18em;
}

.is-ok .vc-status {
    color: var(--vc-green);
}

.is-ko .vc-status {
    color: var(--vc-crimson);
}

.is-warn .vc-status {
    color: var(--vc-amber);
}

.vc-result h2 {
    margin: 6px 0 8px;
    font-family: var(--f-display);
    font-size: 26px;
}

.vc-result-head p {
    margin: 0;
    color: var(--vc-ink-2);
    line-height: 1.6;
}

.vc-data {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 24px 0 0;
}

.vc-data>div {
    padding: 14px 16px;
    border-radius: 14px;
    background: rgba(5, 8, 15, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.06);
    min-width: 0;
}

.vc-data>div.is-wide {
    grid-column: 1 / -1;
}

.vc-data dt {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--vc-muted);
}

.vc-data dd {
    margin: 6px 0 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--vc-ink);
    overflow-wrap: anywhere;
}

.vc-note {
    display: flex;
    gap: 8px;
    margin: 18px 0 0;
    font-size: 13px;
    line-height: 1.55;
    color: var(--vc-muted);
}

/* Pasos (estado inicial) */
.vc-steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.vc-step {
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.vc-step:hover {
    transform: translateY(-3px);
    border-color: var(--vc-cyan);
}

.vc-step .material-symbols-outlined {
    font-size: 28px;
    color: var(--vc-cyan);
}

.vc-step b {
    font-family: var(--f-display);
    font-size: 17px;
}

.vc-step span:last-child {
    font-size: 14px;
    line-height: 1.5;
    color: var(--vc-ink-2);
}

.vc-foot {
    padding: 20px 16px 28px;
    text-align: center;
    font-size: 12px;
    color: var(--vc-muted);
}

@keyframes vcIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

@media (max-width: 680px) {
    .vc-top {
        padding: 12px 16px;
    }

    .vc-top-tag {
        display: none;
    }

    .vc-wrap {
        padding: 28px 16px 48px;
    }

    .vc-hero,
    .vc-result {
        padding: 22px;
    }

    .vc-field {
        flex-wrap: wrap;
        padding: 8px;
    }

    .vc-field-ic {
        display: none;
    }

    .vc-field input {
        flex-basis: 100%;
        font-size: 15px;
        padding: 10px 8px;
    }

    .vc-btn {
        width: 100%;
        justify-content: center;
    }

    .vc-result-head {
        flex-direction: column;
    }

    .vc-data,
    .vc-steps {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .vc-result {
        animation: none;
    }

    .vc-btn,
    .vc-step,
    .vc-brand {
        transition: none;
    }
}