:root {
    --bg: #eef3f8;
    --bg-soft: #f8fafc;
    --card: #ffffff;
    --text: #132033;
    --muted: #64748b;
    --border: #d8e2ee;
    --primary: #1155cc;
    --primary-dark: #0f2f6f;
    --accent: #00a6a6;
    --danger: #b42318;
    --ok: #047857;
    --warning: #b45309;
    --shadow: 0 14px 35px rgba(15, 47, 111, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 20% 0%, rgba(0,166,166,.16), transparent 34%),
        radial-gradient(circle at 90% 12%, rgba(17,85,204,.14), transparent 32%),
        var(--bg);
    line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Navegación y Topbar */
.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 10px 22px;
    min-height: 82px;
    background: linear-gradient(90deg, #071327, #0f2f6f 55%, #005f73);
    color: #fff;
    box-shadow: 0 8px 22px rgba(2, 6, 23, .22);
}
.topbar a { color: #fff; }
.topbar nav { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }

.brand a { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .01em; }
.brand-logo {
    width: 54px;
    height: 54px;
    object-fit: contain;
    display: inline-block;
    background: #fff;
    border-radius: 999px;
    padding: 4px;
    box-shadow: 0 8px 22px rgba(0,0,0,.22);
}

/* Menú de administración */
.admin-menu { position: relative; display: inline-flex; align-items: center; }
.admin-menu-button { display: inline-flex; align-items: center; gap: 4px; font-weight: 700; cursor: pointer; list-style: none; }
.admin-menu-button::-webkit-details-marker { display: none; }
.admin-menu-panel {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    min-width: 240px;
    padding: 8px;
    background: #fff;
    border: 1px solid rgba(216,226,238,.95);
    border-radius: 14px;
    box-shadow: 0 18px 38px rgba(2, 6, 23, .24);
    z-index: 30;
}
.admin-menu:hover .admin-menu-panel,
.admin-menu:focus-within .admin-menu-panel,
.admin-menu[open] .admin-menu-panel { display: grid; gap: 3px; }
.admin-menu-panel a {
    display: block;
    color: var(--text);
    padding: 10px 12px;
    border-radius: 10px;
    white-space: nowrap;
    font-weight: 700;
}
.admin-menu-panel a:hover { background: #eff6ff; text-decoration: none; color: var(--primary-dark); }

/* Estructura y Contenedores */
.container { max-width: 1180px; margin: 28px auto; padding: 0 16px; }
.card, .hero {
    background: rgba(255,255,255,.94);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 24px;
    margin-bottom: 18px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(6px);
}

/* Elementos del Hero */
.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 24px;
    align-items: center;
    overflow: hidden;
    position: relative;
}
.hero::after {
    content: "";
    position: absolute;
    inset: auto -80px -120px auto;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(0,166,166,.12);
}
.hero h1 { font-size: clamp(32px, 5vw, 58px); line-height: 1.02; margin: 8px 0 12px; }
.hero p { font-size: 18px; color: var(--muted); max-width: 720px; }
.hero.compact { grid-template-columns: 1fr; }
.hero.compact h1 { font-size: clamp(30px, 4vw, 46px); }
.eyebrow { display: inline-block; color: var(--primary-dark); font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: 12px; }

/* Panel clásico del Hero (Contador de señales) */
.hero-panel {
    position: relative;
    z-index: 1;
    border-radius: 20px;
    padding: 24px;
    background: linear-gradient(160deg, #0f2f6f, #00a6a6);
    color: #fff;
    text-align: center;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.25);
}
.hero-panel strong { display: block; font-size: 64px; line-height: 1; }
.hero-panel p { color: rgba(255,255,255,.85); margin: 8px 0 0; font-size: 15px; }

.signal { display: flex; justify-content: center; gap: 7px; margin-bottom: 18px; }
.signal span { width: 12px; border-radius: 999px; background: rgba(255,255,255,.8); display: inline-block; }
.signal span:nth-child(1) { height: 18px; margin-top: 24px; }
.signal span:nth-child(2) { height: 30px; margin-top: 12px; }
.signal span:nth-child(3) { height: 42px; }

/* Tarjeta de concursos con logo lateral e información */
.logo-hero-panel {
    position: relative;
    min-height: 165px;
    overflow: hidden;
    display: grid;
    grid-template-columns: minmax(90px, 42%) 1fr;
    align-items: center;
    gap: 14px;
    padding: 18px;
    border-radius: 20px;
}
.logo-hero-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 85% 18%, rgba(255,255,255,.18), transparent 34%),
        linear-gradient(160deg, #0f2f6f, #00a6a6);
    z-index: 0;
}
.hero-panel-logo {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 145px;
    height: auto;
    max-height: 135px;
    object-fit: contain;
    justify-self: center;
    opacity: .42;
    filter: drop-shadow(0 10px 18px rgba(0,0,0,.22));
}
.hero-panel-content {
    position: relative;
    z-index: 3;
    text-align: center;
    width: 100%;
}
.logo-hero-panel strong {
    display: block;
    font-size: clamp(52px, 5vw, 68px);
    line-height: 1;
    color: #fff;
    text-shadow: 0 3px 12px rgba(0,0,0,.35);
}
.logo-hero-panel p {
    color: rgba(255,255,255,.95);
    margin: 10px 0 0;
    font-size: 15px;
    text-shadow: 0 2px 8px rgba(0,0,0,.35);
}

/* Tipografía y Elementos Comunes */
h1, h2, h3 { margin-top: 0; }
hr { border: 0; border-top: 1px solid var(--border); margin: 18px 0; }
ul { padding-left: 20px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.huge-number { font-size: clamp(44px, 8vw, 72px); font-weight: 900; letter-spacing: 1px; margin: 8px 0; color: var(--primary-dark); }
.huge-number.small { font-size: 30px; display: inline-block; margin: 0; }
.badge { display: inline-block; padding: 5px 10px; border-radius: 999px; background: #e8eefc; color: #143a8f; font-size: 12px; font-weight: 800; }
.badge.ok { background: #dcfce7; color: #166534; }
.badge.off { background: #fee2e2; color: #991b1b; }

/* Formularios y Botones */
label { display: block; font-weight: 800; margin: 12px 0 6px; }
input, textarea, select {
    width: 100%;
    padding: 12px 12px;
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 16px;
    background: #fff;
    color: var(--text);
}
input:focus, textarea:focus, select:focus { outline: 3px solid rgba(17,85,204,.15); border-color: var(--primary); }
textarea { min-height: 100px; }
button, .button {
    display: inline-block;
    border: 0;
    border-radius: 12px;
    background: linear-gradient(180deg, var(--primary), #0f45aa);
    color: #fff;
    padding: 11px 16px;
    font-weight: 800;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 8px 18px rgba(17,85,204,.16);
}
button:hover, .button:hover { text-decoration: none; transform: translateY(-1px); }
button.secondary, .button.secondary { background: #334155; box-shadow: none; }
button.danger, .button.danger { background: var(--danger); box-shadow: none; }
.button-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.button-row.compact { margin-top: 0; }

.conditional-input { margin-top: 8px; }
.channel-grid { align-items: start; }
small.muted { display: block; margin-top: 6px; }
.check-line { display: flex; align-items: center; gap: 8px; font-weight: 800; margin-top: 14px; }
.check-line input { width: auto; }

/* Componentes de Administración */
.admin-actions { display: grid; gap: 10px; min-width: 280px; }
.inline-password-form { display: grid; grid-template-columns: minmax(130px, 1fr) minmax(110px, 1fr) auto; gap: 8px; align-items: center; }
.inline-password-form input { padding: 9px 10px; font-size: 14px; }
.admin-edit-form {
    display: grid;
    grid-template-columns: minmax(150px, 1fr) minmax(130px, 1fr) minmax(140px, 1fr) minmax(130px, 1fr) auto;
    gap: 8px;
    align-items: center;
}
.admin-edit-form input { padding: 9px 10px; font-size: 14px; }

/* Tablas y Alertas */
.card table { min-width: 760px; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; border-bottom: 1px solid var(--border); padding: 11px 8px; vertical-align: top; }
th { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .03em; }

.alert { border-radius: 12px; padding: 12px 14px; margin-bottom: 14px; font-weight: 700; }
.alert-success { background: #dcfce7; color: #14532d; }
.alert-error { background: #fee2e2; color: #7f1d1d; }
.alert-info { background: #e0f2fe; color: #075985; }
.muted { color: var(--muted); }
.privacy-note { padding: 10px 12px; border-left: 4px solid var(--accent); background: #eefcfb; border-radius: 10px; color: #0f4f4f; font-size: 14px; }

/* Listados específicos y Resultados */
.public-title { font-size: clamp(30px, 4vw, 44px); margin-bottom: 4px; }
.result-number { font-size: clamp(30px, 6vw, 48px); font-weight: 900; color: var(--primary-dark); }
.success-box { border: 3px solid var(--ok); background: #ecfdf5; }
.campaign-list { display: grid; gap: 12px; }
.campaign-item { display: block; padding: 16px; border: 1px solid var(--border); border-radius: 16px; background: #fff; color: var(--text); transition: .15s ease; }
.campaign-item:hover { text-decoration: none; border-color: var(--primary); transform: translateY(-1px); box-shadow: 0 10px 22px rgba(15,47,111,.08); }
.campaign-item.selected { border: 2px solid var(--primary); background: #eff6ff; }
.campaign-item span { display: block; color: var(--muted); margin-top: 4px; }
.winner-box { border: 1px solid #f59e0b; background: #fffbeb; border-radius: 14px; padding: 14px; }

/* Footer */
.footer { text-align: center; padding: 28px 16px 32px; color: var(--muted); }
.footer-links { margin-bottom: 7px; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }


/* ==========================================
   MEDIA QUERIES (RESPONSIVE)
   ========================================== */

@media (max-width: 780px) {
    .topbar { position: static; align-items: flex-start; flex-direction: column; padding: 12px 16px; min-height: 72px; }
    .topbar nav { justify-content: flex-start; gap: 10px 14px; width: 100%; }
    .brand-logo { width: 48px; height: 48px; }
    
    .admin-menu { width: 100%; display: block; }
    .admin-menu-panel { position: static; min-width: 0; width: 100%; margin-top: 8px; box-shadow: none; }
    
    .container { margin: 16px auto; padding: 0 10px; }
    
    .hero { grid-template-columns: 1fr; padding: 20px; }
    .hero-panel { text-align: left; }
    .hero-panel strong { font-size: 52px; }
    
    .logo-hero-panel {
        min-height: 160px;
        grid-template-columns: minmax(88px, 36%) 1fr;
        gap: 10px;
        padding: 18px 16px;
        text-align: center;
    }
    .hero-panel-logo { width: 100%; max-width: 125px; max-height: 125px; opacity: .42; }
    .logo-hero-panel strong { font-size: 54px; }
    .logo-hero-panel p { font-size: 14px; margin-top: 8px; }

    .card { padding: 18px; border-radius: 18px; overflow-x: auto; }
    .grid, .admin-actions, .inline-password-form, .admin-edit-form { grid-template-columns: 1fr; }
    
    .button-row { flex-direction: column; align-items: stretch; }
    button, .button { width: 100%; text-align: center; }
}

@media (max-width: 420px) {
    .logo-hero-panel { grid-template-columns: 95px 1fr; }
    .hero-panel-logo { max-width: 105px; max-height: 110px; }
    .logo-hero-panel strong { font-size: 50px; }
}