/* ============================================================
   LEBSEL MEDICAL — HOME "NEGATOSCOPIO"
   Sala de lectura radiológica oscura: el contenido aparece
   retroiluminado como una placa sobre el negatoscopio.
   Tema único deliberado (un modo claro rompería la metáfora).
   ============================================================ */

@font-face {
    font-family: "Atkinson Hyperlegible Next";
    src: url("../fonts/atkinson-hyperlegible-next.825fabef695f.woff2") format("woff2");
    font-weight: 200 800;
    font-style: normal;
    font-display: swap;
}

:root {
    color-scheme: dark;

    /* Fondos de la sala de lectura */
    --void: #070f1a;
    --void-2: #0a1524;
    --panel: #0e1c30;
    --panel-2: #122740;

    /* Retroiluminación (teal) — la luz del negatoscopio */
    --glow: #53a5b7;
    --glow-bright: #8fdcec;
    --glow-dim: rgba(83, 165, 183, 0.16);

    /* Señal (naranja) — color de anotación radiológica -> CTA */
    --signal: #e0672a;
    --signal-strong: #c24f17;

    /* Texto */
    --ink: #eef4fb;
    --ink-soft: #a4b8ce;
    --ink-faint: #748aa2;

    --edge: rgba(143, 220, 236, 0.14);
    --edge-strong: rgba(143, 220, 236, 0.30);

    --radius: 14px;
    --maxw: 1180px;
    --nav-h: 68px;

    --mono: "SFMono-Regular", "Cascadia Code", "JetBrains Mono", "Consolas", ui-monospace, monospace;
    --sans: "Atkinson Hyperlegible Next", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--sans);
    color: var(--ink);
    background:
        radial-gradient(1200px 700px at 78% -8%, rgba(83, 165, 183, 0.14), transparent 60%),
        radial-gradient(900px 500px at 8% 105%, rgba(224, 103, 42, 0.08), transparent 55%),
        var(--void);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.wrap { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }

.section { padding-block: clamp(4.5rem, 9vw, 7.5rem); position: relative; }

/* Enlace de salto para accesibilidad de teclado */
.skip-link {
    position: fixed; z-index: 200; top: 0.75rem; left: 0.75rem;
    padding: 0.75rem 1rem; border-radius: 8px;
    background: var(--glow-bright); color: var(--void); font-weight: 700;
    transform: translateY(-160%); transition: transform 0.2s ease;
}
.skip-link:focus { transform: translateY(0); }

/* Etiqueta mono tipo tag DICOM */
.tag {
    font-family: var(--mono);
    font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--glow-bright); display: inline-flex; align-items: center; gap: 0.6rem;
}
.tag::before {
    content: ""; width: 26px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--glow-bright));
}

.eyebrow {
    font-family: var(--mono);
    font-size: 0.7rem; letter-spacing: 0.26em; text-transform: uppercase; color: var(--ink-faint);
}

h1, h2, h3 { font-weight: 800; letter-spacing: -0.015em; line-height: 1.05; text-wrap: balance; margin: 0; }

.section-head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); margin-top: 0.9rem; }
.section-head p { color: var(--ink-soft); font-size: 1.05rem; margin: 1rem 0 0; max-width: 40rem; }

/* ============================================================
   NAV — punto de entrada al portal
   ============================================================ */
.nav {
    position: sticky; top: 0; z-index: 60; min-height: var(--nav-h);
    display: flex; align-items: center;
    background: color-mix(in srgb, var(--void) 78%, transparent);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--edge);
}
.nav .wrap { display: flex; align-items: center; gap: 1.25rem; padding-block: 0.6rem; }
.brand { display: inline-flex; align-items: center; gap: 0.75rem; font-weight: 800; letter-spacing: -0.01em; color: var(--ink); }
.brand-logo {
    width: 40px; height: 40px; border-radius: 50%; flex: none; padding: 4px;
    display: grid; place-items: center; background: #fff;
    box-shadow: 0 0 0 1px var(--edge-strong), 0 0 18px -5px rgba(143, 220, 236, 0.6);
}
.brand-logo img { width: 100%; height: 100%; object-fit: contain; display: block; }
.nav-links { margin-left: auto; display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 0.35rem; }
.nav-links a {
    padding: 0.5rem 0.85rem; border-radius: 999px; color: var(--ink-soft);
    font-size: 0.92rem; font-weight: 600; transition: color 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.nav-links a:hover { color: var(--ink); background: rgba(143, 220, 236, 0.08); }
.nav-greeting { color: var(--ink-soft); font-size: 0.92rem; font-weight: 600; padding: 0.5rem 0.4rem; }
.nav-login { color: var(--ink) !important; border: 1px solid var(--edge-strong); }
.nav-login:hover { border-color: var(--glow); }
.nav-cta {
    color: var(--void) !important; background: var(--glow-bright) !important; font-weight: 700 !important;
}
.nav-cta:hover { box-shadow: 0 0 0 3px rgba(143, 220, 236, 0.18); }

/* Mensajes de Django */
.message-wrap { margin-top: 1rem; }
.message-list {
    list-style: none; margin: 0; padding: 1rem 1.25rem;
    background: var(--glow-dim); border: 1px solid var(--edge); border-radius: 12px; color: var(--ink);
}
.message-list li + li { margin-top: 0.5rem; }

/* ============================================================
   HERO — la sala de lectura. Firma: la línea de escaneo.
   ============================================================ */
.hero { position: relative; padding-top: clamp(4rem, 9vw, 7rem); padding-bottom: clamp(4rem, 9vw, 7rem); overflow: hidden; }
.hero .wrap { position: relative; z-index: 2; }

.hero::before {
    content: ""; position: absolute; inset: 0; z-index: 0; opacity: 0.5;
    background-image:
        linear-gradient(rgba(143, 220, 236, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(143, 220, 236, 0.045) 1px, transparent 1px);
    background-size: 46px 46px;
    mask-image: radial-gradient(circle at 65% 40%, black, transparent 72%);
    -webkit-mask-image: radial-gradient(circle at 65% 40%, black, transparent 72%);
}

/* Línea de escaneo que barre el hero al cargar (FIRMA) */
.scanbeam {
    position: absolute; left: 0; right: 0; top: 0; height: 140px; z-index: 1; pointer-events: none;
    background: linear-gradient(180deg, transparent, rgba(143, 220, 236, 0.10) 55%, rgba(143, 220, 236, 0.55) 82%, var(--glow-bright) 100%);
    filter: blur(1px);
    animation: sweep 2.6s cubic-bezier(0.4, 0, 0.2, 1) 0.15s 1 both;
}
@keyframes sweep {
    0%   { transform: translateY(-160px); opacity: 0; }
    12%  { opacity: 1; }
    88%  { opacity: 1; }
    100% { transform: translateY(78vh); opacity: 0; }
}

.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.hero h1 { font-size: clamp(2.5rem, 6.2vw, 4.6rem); margin: 1.4rem 0 0; }
.hero h1 .lit { color: var(--glow-bright); text-shadow: 0 0 32px rgba(143, 220, 236, 0.35); }
.hero-sub { color: var(--ink-soft); font-size: clamp(1.05rem, 1.6vw, 1.22rem); max-width: 34rem; margin: 1.5rem 0 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.4rem; }

.btn {
    display: inline-flex; align-items: center; gap: 0.6rem;
    padding: 0.9rem 1.6rem; border-radius: 999px; font-weight: 700; font-size: 1rem; cursor: pointer;
    border: 1px solid transparent; transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}
.btn-signal { background: var(--signal); color: #fff; box-shadow: 0 10px 30px -10px rgba(224, 103, 42, 0.7); }
.btn-signal:hover { background: var(--signal-strong); transform: translateY(-2px); box-shadow: 0 16px 36px -12px rgba(224, 103, 42, 0.8); }
.btn-ghost { border-color: var(--edge-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--glow); background: var(--glow-dim); transform: translateY(-2px); }

/* Panel "placa retroiluminada" del hero */
.filmpanel {
    position: relative; border-radius: 18px; padding: 1.6rem;
    background: linear-gradient(160deg, var(--panel-2), var(--void-2));
    border: 1px solid var(--edge);
    box-shadow: inset 0 1px 0 rgba(143, 220, 236, 0.08), 0 40px 80px -40px rgba(0, 0, 0, 0.9);
}
.filmpanel .row {
    display: flex; align-items: center; justify-content: space-between;
    font-family: var(--mono); font-size: 0.72rem; color: var(--ink-faint); letter-spacing: 0.12em;
    padding-block: 0.55rem; border-bottom: 1px dashed var(--edge);
}
.filmpanel .row:last-child { border-bottom: 0; }
.filmpanel .row b { color: var(--glow-bright); font-weight: 600; }
.filmpanel .scan {
    height: 170px; border-radius: 10px; margin-bottom: 1rem; position: relative; overflow: hidden;
    background: radial-gradient(70% 90% at 50% 50%, rgba(83, 165, 183, 0.10), transparent 72%), var(--void);
    border: 1px solid var(--edge);
}
.filmpanel .scan .slice {
    position: absolute; inset: 0; width: 100%; height: 100%;
    color: var(--glow-bright); opacity: 0.85; filter: drop-shadow(0 0 3px rgba(83, 165, 183, 0.35));
}
.filmpanel .scan::after {
    content: ""; position: absolute; left: 0; right: 0; height: 2px; top: 0;
    background: var(--glow-bright); box-shadow: 0 0 12px 1px var(--glow-bright); opacity: 0.8;
    animation: scanloop 3.4s ease-in-out infinite;
}
@keyframes scanloop { 0%, 100% { top: 8%; } 50% { top: 88%; } }

/* ============================================================
   REVELADO al scroll — con degradación sin JavaScript
   ============================================================ */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.js .reveal.is-lit { opacity: 1; transform: none; }
.js .reveal.d1 { transition-delay: 0.08s; }
.js .reveal.d2 { transition-delay: 0.16s; }
.js .reveal.d3 { transition-delay: 0.24s; }

/* ============================================================
   CAPACIDADES — cards como placas en el negatoscopio
   ============================================================ */
.services { background: linear-gradient(180deg, transparent, rgba(10, 21, 36, 0.6)); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

.card {
    position: relative; padding: 1.8rem; border-radius: var(--radius);
    background: linear-gradient(165deg, var(--panel), var(--void-2));
    border: 1px solid var(--edge); overflow: hidden;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.card::before {
    content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--glow), transparent);
    opacity: 0.5; transition: opacity 0.3s;
}
.card:hover { transform: translateY(-4px); border-color: var(--edge-strong); box-shadow: 0 24px 50px -30px rgba(83, 165, 183, 0.5), inset 0 0 40px -20px rgba(83, 165, 183, 0.4); }
.card:hover::before { opacity: 1; }
.card .ico {
    width: 52px; height: 52px; border-radius: 12px; margin-bottom: 1.2rem;
    display: grid; place-items: center; background: var(--glow-dim); border: 1px solid var(--edge); color: var(--glow-bright);
}
.card .ico svg { width: 26px; height: 26px; }
.card h3 { font-size: 1.28rem; margin-bottom: 0.6rem; }
.card p { color: var(--ink-soft); margin: 0; font-size: 0.98rem; }

/* ============================================================
   CÓMO FUNCIONA — timeline (secuencia real)
   ============================================================ */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; position: relative; }
.steps::before {
    content: ""; position: absolute; top: 30px; left: 6%; right: 6%; height: 1px;
    background: linear-gradient(90deg, transparent, var(--glow), transparent); opacity: 0.35;
}
.step { position: relative; }
.step .num {
    font-family: var(--mono); font-size: 0.82rem; font-weight: 600;
    width: 60px; height: 60px; border-radius: 50%; display: grid; place-items: center; margin-bottom: 1.3rem;
    background: var(--void); border: 1px solid var(--edge-strong); color: var(--glow-bright);
    box-shadow: 0 0 0 6px var(--void), 0 0 24px -6px rgba(83, 165, 183, 0.5); position: relative; z-index: 1;
}
.step h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.step p { color: var(--ink-soft); margin: 0; font-size: 0.97rem; }

/* ============================================================
   CONTROL — panel iluminado único
   ============================================================ */
.control .panel {
    border-radius: 20px; padding: clamp(2rem, 5vw, 3.4rem);
    background:
        radial-gradient(120% 140% at 100% 0, rgba(83, 165, 183, 0.16), transparent 55%),
        linear-gradient(160deg, var(--panel-2), var(--void-2));
    border: 1px solid var(--edge); box-shadow: 0 40px 90px -50px rgba(0, 0, 0, 0.9);
}
.control h2 { font-size: clamp(1.7rem, 3.5vw, 2.5rem); max-width: 22ch; margin-top: 0.9rem; }
.control p { color: var(--ink-soft); max-width: 60ch; margin: 1.2rem 0 0; font-size: 1.04rem; }

/* ============================================================
   FAQ — tiras de placa colapsables
   ============================================================ */
.faq-list { display: grid; gap: 0.9rem; max-width: 52rem; }
.faq details {
    border: 1px solid var(--edge); border-radius: 12px; overflow: hidden;
    background: linear-gradient(160deg, var(--panel), var(--void-2)); transition: border-color 0.25s;
}
.faq details[open] { border-color: var(--edge-strong); }
.faq summary {
    list-style: none; cursor: pointer; padding: 1.15rem 1.35rem; font-weight: 700;
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--glow-bright); font-size: 1.4rem; font-weight: 400; transition: transform 0.25s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0; padding: 0 1.35rem 1.3rem; color: var(--ink-soft); }

/* ============================================================
   CTA final — momento naranja
   ============================================================ */
.cta { text-align: center; }
.cta .panel {
    border-radius: 22px; padding: clamp(2.4rem, 6vw, 4.5rem) clamp(1.5rem, 5vw, 3rem);
    background:
        radial-gradient(80% 160% at 50% 0, rgba(224, 103, 42, 0.20), transparent 60%),
        linear-gradient(160deg, var(--panel-2), var(--void-2));
    border: 1px solid var(--edge); position: relative; overflow: hidden;
}
.cta .panel::before {
    content: ""; position: absolute; left: 10%; right: 10%; top: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--signal), transparent);
    box-shadow: 0 0 18px 1px rgba(224, 103, 42, 0.6);
}
.cta h2 { font-size: clamp(1.8rem, 4vw, 2.7rem); max-width: 20ch; margin: 0.9rem auto 0; }
.cta p { color: var(--ink-soft); max-width: 46ch; margin: 1.1rem auto 0; font-size: 1.06rem; }
.cta .hero-actions { justify-content: center; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { border-top: 1px solid var(--edge); background: var(--void-2); padding-block: 3.5rem 2.5rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
.footer h4 { font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-faint); margin: 0 0 1rem; font-family: var(--mono); font-weight: 500; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.footer a { color: var(--ink-soft); font-size: 0.94rem; transition: color 0.2s; }
.footer a:hover { color: var(--glow-bright); }
.footer .tagline { color: var(--ink-soft); font-size: 0.95rem; max-width: 26rem; margin: 1rem 0 0; }
.social-links { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1rem; }
.footer-bottom {
    display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center;
    margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--edge); color: var(--ink-faint); font-size: 0.86rem;
}
.footer-legal { display: flex; flex-wrap: wrap; gap: 1rem; }

:focus-visible { outline: 3px solid var(--glow-bright); outline-offset: 3px; border-radius: 4px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
    .cards { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .steps::before { display: none; }
}
@media (max-width: 800px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
    .nav .brand-name { display: none; }
    .nav-links a { padding: 0.45rem 0.6rem; font-size: 0.86rem; }
}
@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   MOVIMIENTO REDUCIDO
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .scanbeam { display: none; }
    .filmpanel .scan::after { animation: none; }
    .js .reveal { opacity: 1; transform: none; transition: none; }
    .btn, .card { transition: none; }
}