/* ============================================================
   Sociedad Mexicana de Cardiología - 2da Sesión Estatutaria
   Hoja de estilos general
   Paleta obtenida del Programa Académico oficial (PDF):
     - Rojo carmesí (identidad / botones principales)
     - Dorado (acentos, prestigio)
     - Verde (detalle heráldico)
     - Gris carbón (texto)
   ============================================================ */

/* ---------- 1. Variables globales ---------- */
:root {
    --smc-rojo: #CF3339;
    --smc-rojo-oscuro: #A8262B;
    --smc-rojo-suave: #FBE9EA;
    --smc-dorado: #C8A977;
    --smc-dorado-suave: #F4EDE0;
    --smc-verde: #006633;
    --smc-gris-900: #24272B;
    --smc-gris-700: #44494E;
    --smc-gris-500: #6B7075;
    --smc-gris-200: #E7E5E1;
    --smc-gris-100: #F7F5F2;
    --smc-blanco: #FFFFFF;

    --smc-radio-sm: 0.5rem;
    --smc-radio-md: 1rem;
    --smc-radio-lg: 1.5rem;

    --smc-sombra-sm: 0 2px 10px rgba(36, 39, 43, 0.06);
    --smc-sombra-md: 0 10px 30px rgba(36, 39, 43, 0.10);
    --smc-sombra-lg: 0 20px 45px rgba(36, 39, 43, 0.16);

    --smc-transicion: all 0.25s ease;
}

/* ---------- 2. Base ---------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--smc-gris-700);
    background-color: var(--smc-gris-100);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main { flex: 1 0 auto; }

h1, h2, h3, h4, h5, h6 {
    color: var(--smc-gris-900);
    font-weight: 700;
}

a { color: var(--smc-rojo); text-decoration: none; transition: var(--smc-transicion); }
a:hover { color: var(--smc-rojo-oscuro); }

::selection { background-color: var(--smc-dorado-suave); color: var(--smc-gris-900); }

/* ---------- 3. Encabezado / Navegación ---------- */
.navbar-smc {
    background-color: rgba(255, 255, 255, 0.97);
    padding-top: 1rem;
    padding-bottom: 1rem;
    transition: box-shadow 0.3s ease, padding 0.3s ease;
    border-bottom: 1px solid transparent;
}

.navbar-smc.navbar-scrolled {
    box-shadow: var(--smc-sombra-md);
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--smc-gris-200);
}

.navbar-smc .navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.navbar-smc .navbar-brand img {
    height: 48px;
    width: 48px;
    object-fit: contain;
    transition: var(--smc-transicion);
}

.navbar-smc .marca-texto {
    line-height: 1.15;
}

.navbar-smc .marca-texto strong {
    display: block;
    font-size: 0.95rem;
    color: var(--smc-gris-900);
}

.navbar-smc .marca-texto span {
    display: block;
    font-size: 0.72rem;
    color: var(--smc-rojo);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.navbar-smc .nav-link {
    color: var(--smc-gris-700);
    font-weight: 600;
    padding: 0.5rem 1rem !important;
    border-radius: var(--smc-radio-sm);
    transition: var(--smc-transicion);
}

.navbar-smc .nav-link.active,
.navbar-smc .nav-link:hover {
    color: var(--smc-rojo);
    background-color: var(--smc-rojo-suave);
}

.navbar-smc .btn-salir {
    border: 1.5px solid var(--smc-rojo);
    color: var(--smc-rojo);
    font-weight: 600;
    border-radius: 50rem;
    padding: 0.4rem 1.2rem;
}

.navbar-smc .btn-salir:hover {
    background-color: var(--smc-rojo);
    color: var(--smc-blanco);
}

/* ---------- 4. Botones ---------- */
.btn-smc {
    background-color: var(--smc-rojo);
    border-color: var(--smc-rojo);
    color: var(--smc-blanco);
    font-weight: 600;
    border-radius: 50rem;
    padding: 0.65rem 1.75rem;
    transition: var(--smc-transicion);
    box-shadow: var(--smc-sombra-sm);
}

.btn-smc:hover, .btn-smc:focus {
    background-color: var(--smc-rojo-oscuro);
    border-color: var(--smc-rojo-oscuro);
    color: var(--smc-blanco);
    transform: translateY(-2px);
    box-shadow: var(--smc-sombra-md);
}

.btn-smc-outline {
    background-color: transparent;
    border: 1.5px solid var(--smc-rojo);
    color: var(--smc-rojo);
    font-weight: 600;
    border-radius: 50rem;
    padding: 0.6rem 1.6rem;
    transition: var(--smc-transicion);
}

.btn-smc-outline:hover {
    background-color: var(--smc-rojo);
    color: var(--smc-blanco);
}

.btn-dorado {
    background-color: var(--smc-dorado);
    border-color: var(--smc-dorado);
    color: var(--smc-gris-900);
    font-weight: 600;
    border-radius: 50rem;
    transition: var(--smc-transicion);
}

.btn-dorado:hover {
    filter: brightness(0.94);
    transform: translateY(-2px);
}

/* ---------- 5. Tarjetas genéricas ---------- */
.tarjeta-smc {
    background-color: var(--smc-blanco);
    border: 1px solid var(--smc-gris-200);
    border-radius: var(--smc-radio-lg);
    box-shadow: var(--smc-sombra-sm);
    transition: var(--smc-transicion);
}

.tarjeta-smc:hover {
    box-shadow: var(--smc-sombra-md);
    transform: translateY(-4px);
}

/* ---------- 6. Página de Login ---------- */
.pantalla-login {
    min-height: 100vh;
    display: flex;
    align-items: stretch;
}

.login-panel-marca {
    background: linear-gradient(160deg, var(--smc-rojo) 0%, var(--smc-rojo-oscuro) 55%, #7a1b20 100%);
    color: var(--smc-blanco);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 3rem 2.5rem;
    position: relative;
    overflow: hidden;
}

.login-panel-marca::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.10) 0, transparent 45%),
                       radial-gradient(circle at 85% 80%, rgba(255,255,255,0.08) 0, transparent 40%);
}

.login-panel-marca img.logo-login {
    width: 132px;
    height: 132px;
    object-fit: contain;
    background-color: var(--smc-blanco);
    border-radius: 50%;
    padding: 0.6rem;
    box-shadow: var(--smc-sombra-lg);
    position: relative;
    z-index: 1;
}

.login-panel-marca h1 {
    color: var(--smc-blanco);
    font-size: 1.7rem;
    margin-top: 1.75rem;
    position: relative;
    z-index: 1;
}

.login-panel-marca p.evento {
    color: var(--smc-dorado-suave);
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    font-size: 0.85rem;
    position: relative;
    z-index: 1;
}

.login-panel-marca .detalle-evento {
    margin-top: 1.5rem;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.login-panel-marca .detalle-evento div {
    background-color: rgba(255,255,255,0.12);
    border-radius: var(--smc-radio-md);
    padding: 0.75rem 1.1rem;
    font-size: 0.85rem;
}

.login-panel-marca .detalle-evento i { color: var(--smc-dorado-suave); }

.login-panel-formulario {
    background-color: var(--smc-blanco);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
}

.login-caja {
    width: 100%;
    max-width: 400px;
}

.login-caja .form-control {
    border-radius: var(--smc-radio-md);
    padding: 0.8rem 1rem;
    border: 1.5px solid var(--smc-gris-200);
}

.login-caja .form-control:focus {
    border-color: var(--smc-rojo);
    box-shadow: 0 0 0 0.2rem rgba(207, 51, 57, 0.15);
}

/* ---------- 7. Salones (overview) ---------- */
.encabezado-pagina {
    background: linear-gradient(135deg, var(--smc-gris-900) 0%, #34383d 100%);
    color: var(--smc-blanco);
    border-radius: var(--smc-radio-lg);
    padding: 2.5rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
}

.encabezado-pagina::after {
    content: "";
    position: absolute;
    right: -60px;
    top: -60px;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(207,51,57,0.35) 0%, transparent 70%);
}

.encabezado-pagina h1 { color: var(--smc-blanco); }
.encabezado-pagina .badge-evento {
    background-color: rgba(255,255,255,0.12);
    color: var(--smc-dorado-suave);
    border-radius: 50rem;
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.tarjeta-salon {
    background-color: var(--smc-blanco);
    border-radius: var(--smc-radio-lg);
    overflow: hidden;
    box-shadow: var(--smc-sombra-sm);
    transition: var(--smc-transicion);
    height: 100%;
    display: flex;
    flex-direction: column;
    border-top: 5px solid var(--color-salon, var(--smc-rojo));
}

.tarjeta-salon:hover {
    transform: translateY(-6px);
    box-shadow: var(--smc-sombra-lg);
}

.tarjeta-salon .icono-salon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--smc-blanco);
    background-color: var(--color-salon, var(--smc-rojo));
    margin-bottom: 1rem;
}

.tarjeta-salon .cuerpo-salon {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.tarjeta-salon .cuerpo-salon p { color: var(--smc-gris-500); font-size: 0.92rem; }

.tarjeta-salon .cuerpo-salon .btn-smc-outline { margin-top: auto; }

/* ---------- 8. Detalle de salón: transmisión + chat ---------- */
.contenedor-video {
    background-color: #000;
    border-radius: var(--smc-radio-lg);
    overflow: hidden;
    box-shadow: var(--smc-sombra-md);
}

.panel-chat {
    background-color: var(--smc-blanco);
    border-radius: var(--smc-radio-lg);
    box-shadow: var(--smc-sombra-sm);
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 420px;
}

.panel-chat .chat-encabezado {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--smc-gris-200);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.panel-chat .chat-encabezado .punto-vivo {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background-color: var(--smc-rojo);
    display: inline-block;
    animation: parpadeo 1.4s infinite ease-in-out;
}

@keyframes parpadeo {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.25; }
}

.panel-chat .chat-mensajes {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 420px;
}

.chat-mensaje {
    background-color: var(--smc-gris-100);
    border-radius: var(--smc-radio-md);
    padding: 0.55rem 0.9rem;
    font-size: 0.88rem;
    max-width: 92%;
    animation: aparecer 0.25s ease;
}

.chat-mensaje strong { color: var(--smc-rojo); display: block; font-size: 0.78rem; }

.chat-mensaje.chat-mensaje-propio {
    background-color: var(--smc-rojo-suave);
    align-self: flex-end;
}

@keyframes aparecer {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.panel-chat .chat-formulario {
    padding: 0.85rem;
    border-top: 1px solid var(--smc-gris-200);
    display: flex;
    gap: 0.5rem;
}

.panel-chat .chat-formulario input {
    border-radius: 50rem;
    border: 1.5px solid var(--smc-gris-200);
    padding: 0.55rem 1rem;
}

.panel-chat .chat-formulario button {
    border-radius: 50%;
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--smc-rojo);
    color: #fff;
    border: none;
    transition: var(--smc-transicion);
}

.panel-chat .chat-formulario button:hover { background-color: var(--smc-rojo-oscuro); }

/* ---------- 9. Módulo Administrar ---------- */
.tabla-usuarios thead th {
    background-color: var(--smc-gris-900);
    color: var(--smc-blanco);
    border: none;
    font-weight: 600;
    font-size: 0.85rem;
}

.tabla-usuarios tbody tr { transition: var(--smc-transicion); }
.tabla-usuarios tbody tr:hover { background-color: var(--smc-rojo-suave); }

.tabla-usuarios td, .tabla-usuarios th { vertical-align: middle; padding: 0.85rem 1rem; }

.avatar-inicial {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--smc-dorado);
    color: var(--smc-gris-900);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

/* ---------- 10. Footer ---------- */
.footer-smc {
    background-color: var(--smc-gris-900);
    color: #C8C9CB;
    margin-top: 3rem;
}

.footer-smc a { color: #C8C9CB; }
.footer-smc a:hover { color: var(--smc-blanco); }

.footer-smc .marca-footer {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-smc .marca-footer img { height: 46px; width: 46px; }

.footer-smc h6 {
    color: var(--smc-blanco);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.footer-smc .redes a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.08);
    margin-right: 0.5rem;
    transition: var(--smc-transicion);
}

.footer-smc .redes a:hover { background-color: var(--smc-rojo); }

.footer-smc .franja-legal {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 1rem 0;
    font-size: 0.82rem;
    text-align: center;
}

/* ---------- 11. Utilidades responsive ---------- */
@media (max-width: 991.98px) {
    .pantalla-login { flex-direction: column; }
    .login-panel-marca { padding: 2.5rem 1.5rem; }
}

@media (max-width: 767.98px) {
    .encabezado-pagina { padding: 1.75rem; text-align: center; }
    .navbar-smc .marca-texto span { display: none; }
}

/* Mejora de accesibilidad: foco visible en elementos interactivos */
a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 2px solid var(--smc-rojo);
    outline-offset: 2px;
}