/* =========================================================================
   ELECTROTERAPIA & EVIDENCIA — style.css
   Paleta: azul clínico + acento cian eléctrico + neutros cálidos
   ========================================================================= */

:root {
    --blue-950: #0b1e33;
    --blue-900: #10263f;
    --blue-800: #143352;
    --blue-700: #1a4269;
    --blue-600: #21557f;
    --blue-100: #e7f0f8;
    --blue-50:  #f3f8fc;

    --cyan-500: #00b6c7;
    --cyan-400: #22d3e0;
    --cyan-100: #d8f9fb;

    --ink-900: #14202b;
    --ink-700: #3d4c58;
    --ink-500: #6b7a86;
    --ink-300: #a9b6bf;
    --ink-100: #e4e9ec;
    --ink-50:  #f7f9fa;

    --white: #ffffff;

    --alta: #0f9d58;
    --moderada: #f2994a;
    --baja: #e2564a;
    --muybaja: #9e9e9e;

    --radius: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 1px 3px rgba(11,30,51,0.08);
    --shadow-md: 0 6px 20px rgba(11,30,51,0.10);
    --shadow-lg: 0 12px 32px rgba(11,30,51,0.16);

    --font-sans: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--blue-50);
    color: var(--ink-900);
    line-height: 1.55;
}

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

a { color: var(--blue-700); text-decoration: none; }
a:hover { color: var(--cyan-500); }

h1, h2, h3, h4 { color: var(--blue-950); font-weight: 700; margin: 0 0 .5em; }
h1 { font-size: 1.9rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; color: var(--ink-700); }

/* -------------------------------------------------------------------------
   TOPBAR
------------------------------------------------------------------------- */
.topbar {
    background: linear-gradient(120deg, var(--blue-950), var(--blue-800));
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}
.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    font-size: 1.15rem;
}
.brand:hover { color: var(--cyan-400); }
.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px; height: 38px;
    background: rgba(0,182,199,0.18);
    border-radius: 10px;
    font-size: 1.1rem;
}
.brand-text strong { color: var(--cyan-400); font-weight: 800; margin-left: 3px; }

.mainnav { display: flex; align-items: center; gap: 6px; }
.mainnav a {
    color: rgba(255,255,255,0.82);
    padding: 9px 16px;
    border-radius: 8px;
    font-size: .93rem;
    font-weight: 600;
    transition: background .15s, color .15s;
}
.mainnav a:hover { background: rgba(255,255,255,0.08); color: var(--white); }
.mainnav a.active { background: var(--cyan-500); color: var(--blue-950); }
.mainnav a.nav-admin {
    border: 1px solid rgba(255,255,255,0.3);
    margin-left: 6px;
}
.menu-toggle { display: none; background: none; border: none; color: var(--white); font-size: 1.4rem; cursor: pointer; }

/* -------------------------------------------------------------------------
   LAYOUT GENERAL
------------------------------------------------------------------------- */
.main-content { padding: 32px 24px 60px; min-height: 60vh; }

.page-header { margin-bottom: 28px; }
.page-header p.lead { font-size: 1.02rem; color: var(--ink-500); max-width: 720px; }

.sitefooter {
    background: var(--blue-950);
    color: rgba(255,255,255,0.65);
    padding: 26px 0;
    margin-top: 40px;
    font-size: .85rem;
}
.sitefooter p { color: rgba(255,255,255,0.65); margin: 0 0 6px; }
.sitefooter .disclaimer { color: rgba(255,255,255,0.4); font-size: .78rem; }

/* -------------------------------------------------------------------------
   BUSCADOR / FILTROS
------------------------------------------------------------------------- */
.filterbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    background: var(--white);
    padding: 16px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 26px;
    align-items: center;
}
.filterbar input[type="text"],
.filterbar select {
    padding: 10px 14px;
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-sm);
    font-size: .92rem;
    background: var(--ink-50);
    color: var(--ink-900);
}
.filterbar input[type="text"] { flex: 1; min-width: 220px; }
.filterbar button {
    padding: 10px 20px;
    background: var(--blue-800);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: background .15s;
}
.filterbar button:hover { background: var(--cyan-500); color: var(--blue-950); }

/* -------------------------------------------------------------------------
   TARJETAS DE TÉCNICAS
------------------------------------------------------------------------- */
.grid-tecnicas {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}
.card-tecnica {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 22px;
    display: flex;
    flex-direction: column;
    transition: transform .15s, box-shadow .15s;
    border-top: 4px solid var(--cyan-500);
}
.card-tecnica:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card-tecnica .cat-tag {
    display: inline-block;
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--blue-700);
    background: var(--blue-100);
    padding: 4px 10px;
    border-radius: 20px;
    margin-bottom: 10px;
    width: fit-content;
}
.card-tecnica h3 { margin-bottom: 2px; }
.card-tecnica .short-name { color: var(--cyan-500); font-weight: 700; font-size: .85rem; margin-bottom: 10px; }
.card-tecnica p.desc { font-size: .89rem; color: var(--ink-500); flex: 1; }
.card-tecnica ul.obj-preview { list-style: none; padding: 0; margin: 8px 0 14px; font-size: .82rem; color: var(--ink-700); }
.card-tecnica ul.obj-preview li { padding-left: 18px; position: relative; margin-bottom: 4px; }
.card-tecnica ul.obj-preview li::before { content: '＋'; position: absolute; left: 0; color: var(--cyan-500); font-weight: 700; }
.card-tecnica .card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--ink-100);
    padding-top: 12px;
    margin-top: auto;
}
.card-tecnica .evidence-count { font-size: .78rem; color: var(--ink-500); }
.btn-ver {
    background: var(--blue-950);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: .82rem;
    font-weight: 600;
}
.btn-ver:hover { background: var(--cyan-500); color: var(--blue-950); }

/* -------------------------------------------------------------------------
   FICHA DE DETALLE
------------------------------------------------------------------------- */
.tecnica-hero {
    background: linear-gradient(120deg, var(--blue-950), var(--blue-700));
    color: var(--white);
    padding: 34px 30px;
    border-radius: var(--radius);
    margin-bottom: 28px;
    box-shadow: var(--shadow-md);
}
.tecnica-hero .cat-tag {
    background: rgba(0,182,199,0.22);
    color: var(--cyan-400);
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: .74rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.tecnica-hero h1 { color: var(--white); margin-bottom: 4px; }
.tecnica-hero .short-name { color: var(--cyan-400); font-weight: 700; }
.tecnica-hero p { color: rgba(255,255,255,0.85); margin-top: 12px; max-width: 780px; }

.section-block {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    margin-bottom: 22px;
}
.section-block h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 2px solid var(--blue-100);
    padding-bottom: 10px;
    margin-bottom: 16px;
}
.section-block h2 .icon { font-size: 1.2rem; }

.param-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}
.param-item {
    background: var(--blue-50);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    border-left: 3px solid var(--cyan-500);
}
.param-item .label { font-size: .74rem; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-500); font-weight: 700; margin-bottom: 4px; }
.param-item .value { font-size: .92rem; color: var(--ink-900); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 720px) { .two-col { grid-template-columns: 1fr; } }

ul.check-list { list-style: none; padding: 0; margin: 0; }
ul.check-list li {
    padding: 8px 0 8px 26px;
    position: relative;
    border-bottom: 1px solid var(--ink-100);
    font-size: .92rem;
    color: var(--ink-700);
}
ul.check-list li:last-child { border-bottom: none; }
ul.check-list.usos li::before { content: '🎯'; position: absolute; left: 0; }
ul.check-list.objetivos li::before { content: '✅'; position: absolute; left: 0; }

.evidencia-item {
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-sm);
    padding: 16px 18px;
    margin-bottom: 14px;
}
.evidencia-item:last-child { margin-bottom: 0; }
.evidencia-item h4 { margin-bottom: 6px; font-size: 1rem; }
.evidencia-meta { font-size: .82rem; color: var(--ink-500); margin-bottom: 8px; }
.evidencia-item p.resumen { font-size: .88rem; margin-bottom: 8px; }
.evidencia-item a.doi-link { font-size: .82rem; font-weight: 600; }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: .72rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: .03em;
}
.badge-alta { background: var(--alta); }
.badge-moderada { background: var(--moderada); }
.badge-baja { background: var(--baja); }
.badge-muybaja { background: var(--muybaja); }
.badge-default { background: var(--ink-300); }

.equipos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.equipo-card {
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    background: var(--ink-50);
}
.equipo-card h4 { font-size: .95rem; margin-bottom: 3px; }
.equipo-card .fabricante { font-size: .8rem; color: var(--ink-500); margin-bottom: 8px; }
.equipo-card .tipo-tag {
    display: inline-block;
    font-size: .7rem;
    font-weight: 700;
    padding: 2px 9px;
    border-radius: 12px;
    background: var(--blue-100);
    color: var(--blue-700);
    margin-bottom: 8px;
}
.equipo-card p { font-size: .84rem; margin-bottom: 6px; }

/* -------------------------------------------------------------------------
   COMPARATIVA
------------------------------------------------------------------------- */
.comparar-selector {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 20px 22px;
    margin-bottom: 26px;
}
.checkbox-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; margin: 14px 0; }
.checkbox-tecnica {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color .15s, background .15s;
}
.checkbox-tecnica:hover { border-color: var(--cyan-500); background: var(--cyan-100); }
.checkbox-tecnica input { accent-color: var(--cyan-500); width: 17px; height: 17px; }

.table-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow-sm); background: var(--white); }
table.compare-table { width: 100%; border-collapse: collapse; font-size: .88rem; min-width: 640px; }
table.compare-table th, table.compare-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--ink-100); vertical-align: top; }
table.compare-table thead th { background: var(--blue-950); color: var(--white); position: sticky; top: 68px; }
table.compare-table tbody tr:nth-child(even) { background: var(--blue-50); }
table.compare-table td.row-label { font-weight: 700; color: var(--blue-800); background: var(--blue-100); white-space: nowrap; }

/* -------------------------------------------------------------------------
   ARTÍCULOS (listado global)
------------------------------------------------------------------------- */
.articulos-list { display: flex; flex-direction: column; gap: 14px; }
.articulo-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 20px 22px;
    border-left: 4px solid var(--cyan-500);
}
.articulo-card .tecnica-pill {
    display: inline-block;
    font-size: .74rem;
    font-weight: 700;
    color: var(--blue-700);
    background: var(--blue-100);
    padding: 3px 10px;
    border-radius: 20px;
    margin-bottom: 8px;
}

/* -------------------------------------------------------------------------
   FORMULARIOS / ADMIN
------------------------------------------------------------------------- */
.admin-shell { display: flex; min-height: calc(100vh - 68px); }
.admin-sidebar {
    width: 230px;
    background: var(--blue-950);
    color: var(--white);
    padding: 24px 0;
    flex-shrink: 0;
}
.admin-sidebar a {
    display: block;
    padding: 11px 24px;
    color: rgba(255,255,255,0.78);
    font-size: .9rem;
    font-weight: 600;
}
.admin-sidebar a:hover, .admin-sidebar a.active { background: rgba(255,255,255,0.08); color: var(--cyan-400); }
.admin-sidebar .sidebar-title { padding: 0 24px 14px; font-size: .72rem; text-transform: uppercase; color: var(--ink-300); letter-spacing: .05em; }
.admin-main { flex: 1; padding: 30px; background: var(--blue-50); }

.form-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 26px;
    max-width: 760px;
}
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 700; font-size: .85rem; margin-bottom: 6px; color: var(--blue-800); }
.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group input[type="url"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--ink-100);
    border-radius: var(--radius-sm);
    font-size: .92rem;
    font-family: inherit;
    background: var(--ink-50);
    color: var(--ink-900);
}
.form-group textarea { min-height: 90px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

.btn {
    display: inline-block;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: .9rem;
    cursor: pointer;
    border: none;
    text-align: center;
}
.btn-primary { background: var(--cyan-500); color: var(--blue-950); }
.btn-primary:hover { background: var(--cyan-400); color: var(--blue-950); }
.btn-secondary { background: var(--ink-100); color: var(--ink-700); }
.btn-secondary:hover { background: var(--ink-300); }
.btn-danger { background: var(--baja); color: var(--white); }
.btn-danger:hover { background: #c8483d; }
.btn-sm { padding: 6px 14px; font-size: .78rem; }

.admin-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.admin-table th, .admin-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--ink-100); font-size: .88rem; }
.admin-table thead { background: var(--blue-900); color: var(--white); }
.admin-table tbody tr:hover { background: var(--blue-50); }
.admin-table .actions { display: flex; gap: 8px; }

.admin-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; }
.alert { padding: 12px 18px; border-radius: var(--radius-sm); margin-bottom: 18px; font-size: .88rem; font-weight: 600; }
.alert-success { background: #e2f6e9; color: #0f7a3e; border: 1px solid #b6e6c6; }
.alert-error { background: #fdecea; color: #a4302a; border: 1px solid #f6c6c1; }

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 80vh; }
.login-box { background: var(--white); padding: 36px 34px; border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; max-width: 380px; }
.login-box h1 { text-align: center; font-size: 1.3rem; }
.login-box .hint { font-size: .78rem; color: var(--ink-500); text-align: center; margin-top: 14px; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--ink-500); }
.empty-state .emoji { font-size: 2.4rem; margin-bottom: 10px; }

/* -------------------------------------------------------------------------
   RESPONSIVE
------------------------------------------------------------------------- */
@media (max-width: 860px) {
    .mainnav { display: none; }
    .menu-toggle { display: block; }
    .mainnav.open { display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: var(--blue-950); padding: 10px 20px 18px; gap: 4px; }
    .admin-shell { flex-direction: column; }
    .admin-sidebar { width: 100%; display: flex; overflow-x: auto; padding: 10px 0; }
    .admin-sidebar .sidebar-title { display: none; }
    .admin-sidebar a { white-space: nowrap; }
}