/* =====================================================
   RESET & VARIABLES
===================================================== */
:root {
    --bg-main: #2C3E50;
    --bg-dark: #111;
    --bg-darker: #0f0f0f;
    --text-main: #eee;
    --text-muted: #ccc;
    --accent: #FDB141;
    --danger: #dc3545;
    --success: #28a745;
}

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

html, body {
    height: 100%;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: inherit;
}

/* =====================================================
   HEADER / NAV
===================================================== */
header {
    background: linear-gradient(to bottom, #3d5164, var(--bg-main));
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

header nav {
    display: flex;
    gap: 1.5rem;
}

header nav a {
    color: #fff;
    padding: .5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s;
}

header nav a:hover {
    background: var(--bg-main);
    color: var(--accent);
}

/* =====================================================
   HERO VIDEO
===================================================== */
.hero {
    position: relative;
    width: 100%;
    height: 70vh;
    min-height: 420px;
    overflow: hidden;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero iframe {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 177.78vh;
    height: 130vh;
    min-width: 100%;
    min-height: 100%;
    transform: translate(-50%, -50%);
    object-fit: cover;
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 1rem;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px rgba(0,0,0,.7);
}

.hero-content .play-hero {
    display: inline-block;
    padding: .75rem 1.5rem;
    background: var(--accent);
    color: #111;
    font-weight: bold;
    border-radius: 8px;
    margin-top: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.hero-content .play-hero:hover {
    background: #fff;
    transform: scale(1.05);
}

/* =====================================================
   GRID DE CARDS
===================================================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem auto;
    padding: 0 1rem;
    max-width: 1200px;
}

/* =====================================================
   CARD BASE
===================================================== */
.card {
    background: linear-gradient(90deg, #2C3E50, #717173);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0,0,0,.35);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 32px rgba(0,0,0,.45);
}

.card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.card-body {
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card h3 {
    font-size: 1.1rem;
    margin-bottom: .5rem;
    color: #fff;
}

.card p {
    font-size: .9rem;
    color: var(--text-muted);
    margin-bottom: auto;
}

.card small {
    color: #999;
    font-size: .75rem;
    margin-top: .5rem;
}

/* =====================================================
   PAGINACIÓN
===================================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.pagination a {
    padding: .5rem 1rem;
    border-radius: 6px;
    background: #717173;
    color: #fff;
    transition: all 0.3s;
}

.pagination a:hover {
    background: var(--accent);
    color: var(--bg-main);
}

/* =====================================================
   VIDEO MODAL
===================================================== */
.video-modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.85);
    z-index: 999;
    padding: 1rem;
}

.video-modal.active {
    display: flex;
}

.video-modal iframe {
    width: 50vw;
    height: 50vh;
    max-width: 960px;
    max-height: 540px;
    border-radius: 12px;
}

.video-modal .close-video {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent);
    color: #111;
    padding: .5rem .75rem;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
}

/* =====================================================
   CONTENT / ADMIN / TEXT PAGES
===================================================== */
main {
    flex: 1;
}

.content {
    padding: 2.5rem 1rem;
    min-height: 60vh;
}

.container-fluid {
    max-width: 1200px;
    margin: 0 auto;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: -0.75rem;
}

.col-md-12 {
    flex: 0 0 100%;
    padding: 0.75rem;
}

/* Cards en contenido */
.content .card {
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0,0,0,.4);
}

.content .card-header {
    padding: 1.25rem 1.5rem;
    background: linear-gradient(90deg, #2C3E50, #717173);
    border-bottom: 1px solid rgba(200, 172, 172, 0.08)
}

.content .card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent);
}

.content .card-body {
    padding: 1.5rem;
    font-size: .95rem;
    color: #ddd;
}

/* Warning card */
.card-warning {
    border-left: 4px solid var(--accent);
}

/* =====================================================
   BOTONES
===================================================== */
.btn {
    display: inline-block;
    padding: .65rem 1.2rem;
    border-radius: 10px;
    font-size: .9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all .25s ease;
}

.btn-warning {
    background: var(--accent);
    color: #111;
}

.btn-warning:hover {
    background: #ffd27a;
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--accent);
    color: #111;
}

.btn-block {
    width: 100%;
}

/* =====================================================
   FORMULARIOS – DARK UI
===================================================== */
form {
    width: 100%;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: .35rem;
    color: #ddd;
}

.form-control {
    background: var(--bg-main);
    border: 1px solid #2a2a2a;
    color: #eee;
    padding: .6rem .75rem;
    border-radius: 8px;
    font-size: .9rem;
}

.form-control::placeholder {
    color: #777;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(253,177,65,.15);
    outline: none;
}

.invalid-feedback {
    display: none;
    font-size: .75rem;
    color: var(--danger);
}

.was-validated .form-control:invalid ~ .invalid-feedback {
    display: block;
}

/* =====================================================
   FOOTER
===================================================== */
footer {
    background: var(--bg-dark);
    color: #aaa;
    text-align: center;
    padding: 1rem;
    font-size: .8rem;
    border-top: 1px solid rgba(255,255,255,.08);
}

/* =====================================================
   RESPONSIVE
===================================================== */
@media (max-width: 768px) {
    .hero-content h1 { font-size: 1.8rem; }
    .video-modal iframe { width: 90%; height: 50vw; }
}

@media (max-width: 480px) {
    header nav { flex-direction: column; gap: .75rem; }
    .hero-content h1 { font-size: 1.5rem; }
}


/* Grid del formulario */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* En móvil vuelve a una sola columna */
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}