/* ============================================================
   WorldWings Virtual — Centro de Descargas
   Tema visual alineado al sitio principal (navy / electric / cyan).
   Solo estilos — no cambia estructura de datos ni lógica del sitio.
   ============================================================ */

:root {
    --navy:       #090d84;
    --blue:       #004aad;
    --electric:   #2181fa;
    --cyan:       #1dcee5;
    --dark:       #111e4e;
    --darker:     #0d1840;
    --card-bg:    rgba(58,79,143,0.65);
    --card-hover: rgba(58,79,143,0.8);
    --border:     rgba(93,181,255,0.55);
    --border-glow:rgba(29,206,229,0.4);
    --text:       #ffffff;
    --text-sec:   rgba(255,255,255,0.65);
    --text-muted: rgba(255,255,255,0.38);
    --radius:     14px;
    --radius-lg:  22px;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --ease: cubic-bezier(0.4,0,0.2,1);
}

* { box-sizing: border-box; }

body {
    background: var(--darker);
    background-image:
        radial-gradient(ellipse 700px 700px at -10% -10%, rgba(33,129,250,0.2), transparent 60%),
        radial-gradient(ellipse 500px 500px at 110% 30%, rgba(29,206,229,0.15), transparent 60%),
        radial-gradient(ellipse 400px 400px at 30% 110%, rgba(93,181,255,0.12), transparent 60%);
    background-attachment: fixed;
    color: var(--text);
    font-family: var(--font);
    min-height: 100vh;
}

a { color: var(--electric); }

/* --- Scrollbar moderno (reemplaza la barra gris por defecto del navegador) --- */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: rgba(255,255,255,0.03); }
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--electric), var(--navy));
    border-radius: 10px;
    border: 2px solid var(--darker);
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, var(--cyan), var(--electric)); }
* { scrollbar-width: thin; scrollbar-color: var(--electric) rgba(255,255,255,0.03); }

/* --- Glass card (reemplaza .card de Bootstrap) --- */
.card {
    background: var(--card-bg) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-lg) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: var(--text);
    box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}
.text-muted { color: var(--text-sec) !important; }
.form-text { color: var(--text-muted) !important; }
code { color: var(--cyan); }

/* --- Inputs --- */
.form-control, .form-select {
    background: rgba(255,255,255,0.06) !important;
    border: 1px solid var(--border) !important;
    color: var(--text) !important;
    border-radius: 10px !important;
}
.form-control:focus, .form-select:focus {
    background: rgba(255,255,255,0.09) !important;
    border-color: var(--electric) !important;
    box-shadow: 0 0 0 3px rgba(33,129,250,0.25) !important;
    color: var(--text) !important;
}
.form-control::placeholder { color: var(--text-muted) !important; }
/* Quita las flechitas del input numérico (Callsign) */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; }
/* El navegador no hereda el fondo oscuro del <select> en la lista desplegada de
   <option> (es una ventana nativa aparte) — sin esto el texto queda blanco
   sobre blanco y no se ve. */
.form-select option, select option { color: #111; background: #fff; }
.form-label { color: var(--text-sec); font-weight: 500; }

/* --- Botones --- */
.btn { border-radius: 10px !important; font-weight: 600; transition: all 0.25s var(--ease); }
.btn-primary {
    background: linear-gradient(135deg, var(--electric) 0%, var(--navy) 100%) !important;
    border: none !important;
    box-shadow: 0 6px 20px rgba(33,129,250,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(33,129,250,0.5); }
.btn-success {
    background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%) !important;
    border: none !important;
    box-shadow: 0 6px 20px rgba(29,206,229,0.15);
}
.btn-success:hover { transform: translateY(-2px); }
.btn-outline-primary, .btn-outline-secondary, .btn-outline-danger {
    background: rgba(255,255,255,0.04) !important;
    border: 1px solid var(--border) !important;
    color: var(--text) !important;
}
.btn-outline-primary:hover, .btn-outline-secondary:hover { background: rgba(33,129,250,0.15) !important; border-color: var(--electric) !important; }
.btn-outline-danger:hover { background: rgba(239,68,68,0.15) !important; border-color: #ef4444 !important; color: #fca5a5 !important; }
.active-cat.btn-primary { pointer-events: none; }

/* --- Alertas --- */
.alert { border-radius: var(--radius) !important; border: 1px solid; backdrop-filter: blur(10px); }
.alert-danger { background: rgba(239,68,68,0.12) !important; border-color: rgba(239,68,68,0.35) !important; color: #fca5a5 !important; }
.alert-info { background: rgba(33,129,250,0.1) !important; border-color: var(--border) !important; color: var(--text-sec) !important; }

/* --- Tabla (lista de archivos) --- */
.table { color: var(--text); background: transparent; }
.table thead th {
    background: rgba(255,255,255,0.04);
    color: var(--cyan);
    border-color: var(--border) !important;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.78rem;
    letter-spacing: 0.04em;
}
.table td, .table th { border-color: rgba(255,255,255,0.08) !important; vertical-align: middle; }
.table-striped > tbody > tr:nth-of-type(odd) > * { background: #AEE0EC; color: #0d1840; }
.table-bordered { border-color: var(--border) !important; }

/* --- Topbar / Sidebar del centro de descargas --- */
.topbar-wrap { padding: 1rem; }
.topbar {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    padding: .9rem 1.6rem;
    display: flex; justify-content: space-between; align-items: center;
}
.sidebar {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    padding: 2rem 1rem;
}
.sidebar .btn { border-radius: 10px; margin-bottom: 1rem; }
.logo { max-width: 90px; margin-bottom: 1rem; filter: drop-shadow(0 0 12px rgba(33,129,250,0.2)); }
.main-content { padding: 2rem; }
iframe.embed {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    height: calc(100vh - 220px);
    background: var(--darker);
}

/* --- Badges de tamaño/estado --- */
.badge-cat { background: rgba(33,129,250,0.15); color: var(--cyan); border: 1px solid var(--border-glow); border-radius: 20px; padding: 4px 12px; font-size: 0.78rem; }