/* ============================================================
   CONSTRUCTORA BOLÍVAR - VALIDACIÓN DE ENTREGA
   Diseño UX/UI Senior - Fullscreen Video + Form
   ============================================================ */

/* ---------- VARIABLES CSS ---------- */
:root {
    --verde: #0D7A3C;
    --verde-hover: #0A5E2E;
    --amarillo: #F2B134;
    --amarillo-hover: #D99A20;
    --gris-claro: #F4F4F4;
    --gris-borde: #E5E5E5;
    --blanco: #FFFFFF;
    --negro: #000000;
    --texto: #1A1A1A;
    --gris-texto: #888888;
    --sombra-suave: 0 2px 12px rgba(0, 0, 0, 0.06);
    --sombra-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --radio: 24px;
    --radio-sm: 16px;
    --fuente: 'Montserrat', 'Poppins', sans-serif;
    --transicion: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- RESET ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
    height: 100%;
}

body {
    font-family: var(--fuente);
    color: var(--texto);
    line-height: 1.6;
    height: 100%;
    overflow: hidden;
    position: relative;
    background: var(--negro);
}

/* ================================================================
   PANTALLA 1: VIDEO FULLSCREEN VERTICAL
   ================================================================ */
.screen-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    background: var(--negro);
    overflow: hidden;
}

.screen-video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Superposición de textos superiores */
.video-overlay-superior {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 60px 24px 40px;
    text-align: center;
    z-index: 3;
    pointer-events: none;
    background: linear-gradient(to bottom, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.2) 70%, transparent 100%);
}

.video-titulo {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--blanco);
    letter-spacing: -0.5px;
    text-transform: uppercase;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    margin-bottom: 10px;
}

.video-categoria {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 10px;
}

.video-categoria-linea {
    flex: 0 0 50px;
    height: 2px;
    background: var(--amarillo);
    opacity: 0.9;
}

.video-categoria-texto {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--amarillo);
    letter-spacing: 2px;
    text-transform: uppercase;
    text-shadow: 0 2px 6px rgba(0,0,0,0.5);
}

/* Label inferior */
.video-overlay-inferior {
    position: absolute;
    bottom: 100px;
    left: 0;
    right: 0;
    text-align: center;
    z-index: 3;
    pointer-events: none;
}

.video-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.65);
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Play button overlay */
.video-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    cursor: pointer;
    z-index: 4;
    transition: opacity 0.3s ease;
}

.video-play-overlay.oculto {
    opacity: 0;
    pointer-events: none;
}

.video-play-overlay .video-subtitulo {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    text-align: center;
    text-shadow: 0 1px 4px rgba(0,0,0,0.7);
    padding: 0 24px;
    max-width: 360px;
}

.video-play-overlay .video-subtitulo .si {
    color: #4ADE80;
    font-weight: 700;
}

.video-play-overlay .video-subtitulo .no {
    color: var(--amarillo);
    font-weight: 700;
}

.video-play-button {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255,255,255,0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transicion), box-shadow var(--transicion);
    box-shadow: 0 4px 25px rgba(0,0,0,0.35);
}

.video-play-overlay:not(.oculto):hover .video-play-button {
    transform: scale(1.08);
    box-shadow: 0 8px 35px rgba(0,0,0,0.45);
}

.video-play-button::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 16px 0 16px 28px;
    border-color: transparent transparent transparent var(--verde);
    margin-left: 4px;
}

/* Botón "Continuar" */
.btn-continuar {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--verde);
    color: var(--blanco);
    border: none;
    border-radius: 50px;
    font-family: var(--fuente);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease, transform var(--transicion), background var(--transicion);
    box-shadow: 0 4px 20px rgba(13,122,60,0.5);
    letter-spacing: 0.5px;
}

.btn-continuar.visible {
    opacity: 1;
    pointer-events: all;
    animation: pulse-continuar 0.6s ease;
}

.btn-continuar:hover {
    background: var(--verde-hover);
    transform: translateX(-50%) translateY(-2px);
    box-shadow: 0 8px 30px rgba(13,122,60,0.6);
}

.btn-continuar:active {
    transform: translateX(-50%) translateY(0);
}

@keyframes pulse-continuar {
    0%   { transform: translateX(-50%) scale(0.9); }
    50%  { transform: translateX(-50%) scale(1.04); }
    100% { transform: translateX(-50%) scale(1); }
}

/* ================================================================
   PANTALLA 2: FORMULARIO FULLSCREEN
   ================================================================ */
.screen-form {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 20;
    background: var(--blanco);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.screen-form.activa {
    transform: translateX(0);
}

/* Botón volver */
.btn-volver {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 16px 20px;
    background: var(--blanco);
    color: var(--verde);
    border: none;
    border-bottom: 1px solid var(--gris-borde);
    font-family: var(--fuente);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transicion);
    width: 100%;
    text-align: left;
}

.btn-volver:hover {
    background: var(--gris-claro);
}

/* Contenedor scrolleable del formulario */
.form-scroll {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.form-container {
    max-width: 680px;
    margin: 0 auto;
    padding: 20px 20px 60px;
}

/* ================================================================
   ENCABEZADO (sin logo)
   ================================================================ */
.header-simple {
    text-align: center;
    margin-bottom: 28px;
}

.header-simple h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--verde);
    letter-spacing: -0.5px;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.categoria-titulo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 12px;
}

.categoria-linea {
    flex: 1;
    height: 2px;
    background: var(--amarillo);
    max-width: 60px;
}

.categoria-titulo h2 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--amarillo);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.header-subtitulo {
    font-size: 0.9rem;
    color: var(--texto);
    font-weight: 500;
}

.header-subtitulo .si { color: var(--verde); font-weight: 700; }
.header-subtitulo .no { color: var(--amarillo); font-weight: 700; }

/* ================================================================
   TARJETAS DEL FORMULARIO
   ================================================================ */
.card {
    background: var(--blanco);
    border: 1px solid var(--gris-borde);
    border-radius: var(--radio);
    padding: 26px 22px;
    margin-bottom: 16px;
    box-shadow: var(--sombra-suave);
    transition: box-shadow var(--transicion), transform var(--transicion);
}

.card:hover {
    box-shadow: var(--sombra-hover);
    transform: translateY(-2px);
}

/* Campos de texto */
.form-group {
    margin-bottom: 18px;
}

.form-group:last-child { margin-bottom: 0; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--texto);
    margin-bottom: 6px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 16px;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    pointer-events: none;
}

.input-icon svg {
    width: 20px;
    height: 20px;
    color: var(--gris-texto);
}

.input-wrapper input {
    width: 100%;
    height: 54px;
    padding: 0 16px 0 48px;
    border: 2px solid var(--gris-borde);
    border-radius: var(--radio-sm);
    font-family: var(--fuente);
    font-size: 0.95rem;
    color: var(--texto);
    background: var(--blanco);
    transition: border-color var(--transicion), box-shadow var(--transicion);
    outline: none;
}

.input-wrapper input::placeholder { color: #BBBBBB; }

.input-wrapper input:focus {
    border-color: var(--verde);
    box-shadow: 0 0 0 3px rgba(13,122,60,0.1);
}

.input-wrapper input.error {
    border-color: #E74C3C;
    box-shadow: 0 0 0 3px rgba(231,76,60,0.1);
}

/* Preguntas */
.pregunta-header {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 14px;
}

.pregunta-numero {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--verde);
    color: var(--blanco);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    font-weight: 700;
}

.pregunta-texto {
    flex: 1;
    font-size: 1rem;
    font-weight: 600;
    color: var(--texto);
    line-height: 1.45;
    padding-top: 2px;
}

.pregunta-divisor {
    height: 1px;
    background: var(--gris-borde);
    margin: 0 0 18px 0;
}

/* Opciones Sí / No */
.opciones {
    display: flex;
    gap: 16px;
}

.opcion {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
    padding: 8px 0;
    transition: opacity var(--transicion);
}

.opcion:hover { opacity: 0.8; }

.checkbox-custom {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background var(--transicion), border-color var(--transicion);
}

.checkbox-custom.si { border: 2px solid var(--verde); background: transparent; }
.checkbox-custom.no { border: 2px solid var(--amarillo); background: transparent; }

.opcion.seleccionada .checkbox-custom.si {
    background: var(--verde);
    border-color: var(--verde);
}

.opcion.seleccionada .checkbox-custom.no {
    background: var(--amarillo);
    border-color: var(--amarillo);
}

.check-icon {
    display: none;
    width: 14px;
    height: 14px;
    position: relative;
}

.opcion.seleccionada .check-icon { display: block; }

.check-icon::before,
.check-icon::after {
    content: '';
    position: absolute;
    background: var(--blanco);
    border-radius: 1.5px;
}

.check-icon::before {
    width: 3px;
    height: 8px;
    top: 5px;
    left: 3px;
    transform: rotate(45deg);
}

.check-icon::after {
    width: 3px;
    height: 12px;
    top: 1px;
    left: 8px;
    transform: rotate(-45deg);
}

.opcion-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--texto);
}

/* Botón enviar */
.submit-wrapper {
    text-align: center;
    margin-top: 8px;
    margin-bottom: 30px;
}

.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 48px;
    background: var(--verde);
    color: var(--blanco);
    border: none;
    border-radius: 50px;
    font-family: var(--fuente);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background var(--transicion), transform var(--transicion), box-shadow var(--transicion);
    letter-spacing: 0.3px;
    box-shadow: 0 4px 15px rgba(13,122,60,0.3);
}

.btn-submit:hover {
    background: var(--verde-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(13,122,60,0.35);
}

.btn-submit:active { transform: translateY(0); }

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-submit .spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: var(--blanco);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.btn-submit.enviando .spinner { display: block; }
.btn-submit.enviando .btn-text { opacity: 0.7; }

@keyframes spin { to { transform: rotate(360deg); } }

/* Footer */
.footer {
    text-align: center;
    padding: 20px 0 30px;
}

.footer-linea {
    height: 2px;
    background: var(--amarillo);
    max-width: 80px;
    margin: 0 auto 14px;
}

.footer-texto {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--verde);
}

/* ================================================================
   OVERLAY DE AGRADECIMIENTO
   ================================================================ */
.agradecimiento-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.agradecimiento-overlay.visible {
    opacity: 1;
    pointer-events: all;
}

.agradecimiento-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.agradecimiento-content {
    position: relative;
    z-index: 1;
    background: var(--blanco);
    border-radius: var(--radio);
    padding: 30px 22px;
    margin: 16px;
    max-width: 480px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

.agradecimiento-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radio-sm);
    margin-bottom: 8px;
}

.agradecimiento-check {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--verde);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
}

.agradecimiento-check::after {
    content: '';
    width: 18px;
    height: 27px;
    border: solid var(--blanco);
    border-width: 0 4px 4px 0;
    transform: rotate(45deg);
    margin-top: -4px;
}

.agradecimiento-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--verde);
    margin-bottom: 14px;
}

.btn-cerrar {
    display: inline-block;
    padding: 12px 32px;
    background: var(--verde);
    color: var(--blanco);
    border: none;
    border-radius: 50px;
    font-family: var(--fuente);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transicion);
    margin-top: 14px;
}

.btn-cerrar:hover { background: var(--verde-hover); }

/* ================================================================
   ERROR / NO ENCONTRADO
   ================================================================ */
.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: 20px;
    background: var(--blanco);
}

.error-page .error-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gris-claro);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.error-page h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--texto);
    margin-bottom: 8px;
}

.error-page p {
    color: var(--gris-texto);
    font-size: 0.95rem;
}

/* Eliminamos decoraciones fijas en pantalla video */
.screen-video ~ .decoracion-top-right,
.screen-video ~ .decoracion-bottom-left {
    display: none;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 480px) {
    html { font-size: 15px; }

    .video-titulo { font-size: 1.35rem; }
    .video-categoria-texto { font-size: 1.2rem; }
    .video-categoria-linea { flex-basis: 36px; }
    .video-play-overlay .video-subtitulo { font-size: 0.8rem; }

    .video-play-button {
        width: 66px;
        height: 66px;
    }
    .video-play-button::after {
        border-width: 13px 0 13px 23px;
    }

    .btn-continuar {
        padding: 12px 26px;
        font-size: 0.9rem;
        bottom: 28px;
    }

    .video-overlay-inferior { bottom: 85px; }

    .form-container { padding: 14px 12px 40px; }
    .card { padding: 20px 14px; border-radius: 18px; }

    .header-simple h1 { font-size: 1.25rem; }
    .categoria-titulo h2 { font-size: 1.15rem; }
    .categoria-linea { max-width: 36px; }

    .pregunta-header { gap: 10px; }
    .pregunta-numero { width: 38px; height: 38px; font-size: 0.95rem; }
    .pregunta-texto { font-size: 0.9rem; }
    .checkbox-custom { width: 30px; height: 30px; border-radius: 8px; }
    .opcion-label { font-size: 0.88rem; }
    .opciones { gap: 10px; }
    .input-wrapper input { height: 50px; font-size: 0.9rem; }

    .btn-submit {
        width: 100%;
        padding: 15px 20px;
    }
}