/* ============================================================
   Estilos generales del sistema de votación FCABSNT 2026
   ============================================================ */

:root {
    --azul:        #0b3d91;
    --azul-claro:  #1e63d0;
    --verde:       #15a34a;
    --verde-hover: #128a3e;
    --rojo:        #d32f2f;
    --gris-texto:  #444;
    --gris-suave:  #6b7280;
    --fondo-card:  #ffffff;
    --borde:       #e2e8f0;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background: linear-gradient(135deg, #0b3d91 0%, #1e63d0 60%, #2a8bf2 100%);
    color: var(--gris-texto);
}

.card {
    background-color: var(--fondo-card);
    width: 100%;
    max-width: 460px;
    border-radius: 16px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    animation: aparecer 0.4s ease;
}

@keyframes aparecer {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.card-header {
    background: linear-gradient(135deg, var(--azul) 0%, var(--azul-claro) 100%);
    padding: 26px 24px 22px;
    text-align: center;
}

.card-header img {
    max-width: 150px;
    height: auto;
    margin-bottom: 8px;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.25));
}

.card-header h1 {
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: 0.2px;
}

.card-header .subtitulo {
    color: #d6e4ff;
    font-size: 13px;
    margin-top: 6px;
}

.card-body {
    padding: 28px 26px 30px;
}

.pregunta {
    font-size: 16px;
    font-weight: 600;
    color: var(--azul);
    line-height: 1.5;
    margin-bottom: 22px;
    text-align: center;
}

label.campo {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: var(--gris-texto);
    margin-bottom: 6px;
}

input[type="text"],
input[type="email"] {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 18px;
    border: 1.5px solid var(--borde);
    border-radius: 10px;
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="email"]:focus {
    outline: none;
    border-color: var(--azul-claro);
    box-shadow: 0 0 0 3px rgba(30, 99, 208, 0.15);
}

.codigo-input {
    text-align: center;
    letter-spacing: 8px;
    font-size: 26px !important;
    font-weight: 700;
}

/* Botón principal */
.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    cursor: pointer;
    background: linear-gradient(135deg, var(--verde) 0%, var(--verde-hover) 100%);
    transition: transform 0.12s, box-shadow 0.2s, opacity 0.2s;
}

.btn:hover  { box-shadow: 0 8px 18px rgba(21, 163, 74, 0.35); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-azul {
    background: linear-gradient(135deg, var(--azul) 0%, var(--azul-claro) 100%);
}
.btn-azul:hover { box-shadow: 0 8px 18px rgba(11, 61, 145, 0.35); }

/* Opciones de voto Si / No */
.opciones {
    display: flex;
    gap: 14px;
    margin-bottom: 24px;
}

.opcion {
    flex: 1;
}

.opcion input {
    display: none;
}

.opcion label {
    display: block;
    text-align: center;
    padding: 18px 10px;
    border: 2px solid var(--borde);
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--gris-suave);
    cursor: pointer;
    transition: all 0.18s ease;
    user-select: none;
}

.opcion label:hover {
    border-color: var(--azul-claro);
}

.opcion input:checked + label {
    color: #fff;
    border-color: transparent;
}

.opcion.si input:checked + label {
    background: linear-gradient(135deg, var(--verde) 0%, var(--verde-hover) 100%);
}

.opcion.no input:checked + label {
    background: linear-gradient(135deg, var(--rojo) 0%, #b71c1c 100%);
}

/* Mensajes */
.alerta {
    padding: 14px 16px;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 20px;
    border: 1px solid transparent;
}

.alerta-error {
    background-color: #fdecea;
    border-color: #f5c2c0;
    color: #b71c1c;
}

.alerta-info {
    background-color: #e8f1fe;
    border-color: #b9d3fb;
    color: #0b3d91;
}

.alerta-ok {
    background-color: #e7f6ec;
    border-color: #b6e2c4;
    color: #0f7a36;
}

.texto-ayuda {
    font-size: 13px;
    color: var(--gris-suave);
    text-align: center;
    margin-top: 16px;
    line-height: 1.5;
}

.pie {
    text-align: center;
    font-size: 12px;
    color: var(--gris-suave);
    padding: 0 26px 22px;
}

/* Página de éxito */
.exito-icono {
    width: 88px;
    height: 88px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--verde) 0%, var(--verde-hover) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 26px rgba(21, 163, 74, 0.4);
    animation: pop 0.45s ease;
}

@keyframes pop {
    0%   { transform: scale(0); }
    70%  { transform: scale(1.12); }
    100% { transform: scale(1); }
}

.exito-icono svg {
    width: 46px;
    height: 46px;
    stroke: #fff;
    stroke-width: 4;
    fill: none;
}

.exito-titulo {
    text-align: center;
    font-size: 22px;
    font-weight: 700;
    color: var(--verde-hover);
    margin-bottom: 10px;
}

.exito-texto {
    text-align: center;
    font-size: 15px;
    color: var(--gris-texto);
    line-height: 1.6;
}