/* Variables CSS para facilitar cambios de diseño */
:root {
    --bg-color: #0d0d12;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --primary-color: #00f3ff;
    --primary-hover: #00c3cc;
    --accent-color: #b026ff;
    --text-main: #f0f0f5;
    --text-muted: #9fa0b8;
    --font-family: 'Outfit', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-family);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: rgba(13, 13, 18, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--card-border);
    padding: 1rem 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 1px;
}

.logo span {
    color: var(--primary-color);
}

nav a {
    margin-left: 20px;
    font-weight: 600;
    color: var(--text-muted);
}

nav a:hover, nav a.active {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 100px 0;
    text-align: center;
}

.hero-bg {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(176,38,255,0.15) 0%, rgba(0,243,255,0.15) 50%, rgba(13,13,18,0) 70%);
    z-index: -1;
}

.hero h2 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h2 span {
    background: -webkit-linear-gradient(45deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-muted);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 40px auto;
}

/* Botones */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: #000;
    box-shadow: 0 4px 15px rgba(0, 243, 255, 0.3);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 243, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--card-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-logout {
    color: #ff4757 !important;
}

/* Main Content (Proyectos) */
.section-title {
    margin-bottom: 40px;
}

.section-title h3 {
    font-size: 2rem;
}

.section-title span {
    color: var(--primary-color);
}

.line {
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin-top: 10px;
    border-radius: 2px;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

/* Glass Card */
.post-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(5px);
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.post-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--card-border);
}

.post-content-preview {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.post-date {
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.post-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.post-excerpt {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* Post Detalle */
.post-container {
    padding: 60px 20px;
    max-width: 800px;
}

.post-header-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 30px;
    border: 1px solid var(--card-border);
}

.post-full-title {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.post-full-date {
    color: var(--primary-color);
    margin-bottom: 30px;
    font-size: 1rem;
}

.post-body {
    font-size: 1.1rem;
    color: #cfcfd6;
    margin-bottom: 40px;
    white-space: pre-wrap;
}

.download-box {
    background: rgba(176, 38, 255, 0.1);
    border: 1px solid var(--accent-color);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
}

.download-box h4 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.download-box p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* Formularios & Panel Admin */
.glass-panel {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 30px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.admin-container {
    padding: 60px 20px;
    max-width: 800px;
}

#login-section {
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
}

#login-section p {
    margin-bottom: 20px;
    color: var(--text-muted);
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-main);
    font-family: var(--font-family);
    transition: border-color 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.error-msg {
    color: #ff4757;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.admin-list-item {
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--card-border);
    padding: 15px 20px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.admin-actions button {
    margin-left: 10px;
    padding: 6px 12px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-weight: 600;
}

.btn-edit { background: #eccc68; color: #000; }
.btn-delete { background: #ff4757; color: #fff; }

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

footer {
    text-align: center;
    padding: 40px 0;
    color: var(--text-muted);
    border-top: 1px solid var(--card-border);
    margin-top: 60px;
}

.loading {
    text-align: center;
    padding: 40px;
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* ── Barra de progreso mini (en las cards del index) ── */
.progress-mini {
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.08);
    border-radius: 3px;
    margin-bottom: 6px;
    overflow: hidden;
}

.progress-mini-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 3px;
    transition: width 0.5s ease;
}

.progress-label {
    font-size: 0.8rem;
    color: var(--primary-color);
    margin-bottom: 12px;
}

/* ── YouTube embed ── */
.youtube-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    margin-bottom: 35px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--card-border);
}

.youtube-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ── Grid de info (descripción + progreso) ── */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 35px;
}

@media (max-width: 600px) {
    .info-grid { grid-template-columns: 1fr; }
}

.info-box {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 20px;
}

.info-box h4 {
    color: var(--primary-color);
    margin-bottom: 12px;
    font-size: 1rem;
}

.info-box p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ── Barra de progreso grande ── */
.progress-bar-wrap {
    width: 100%;
    background: rgba(255,255,255,0.08);
    border-radius: 8px;
    height: 32px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 10px;
    font-weight: 700;
    font-size: 0.85rem;
    color: #000;
    transition: width 0.8s ease;
    min-width: 40px;
}

/* ── Sección de novedades ── */
.post-news-section {
    margin-bottom: 35px;
}

.post-news-section h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-main);
}

/* ── Comentarios ── */
.comment-form {
    margin-bottom: 30px;
}

.comment-form h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.comment-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 18px 20px;
    margin-bottom: 12px;
    transition: border-color 0.3s;
}

.comment-item:hover {
    border-color: rgba(0, 243, 255, 0.3);
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.comment-author {
    color: var(--primary-color);
    font-size: 1rem;
}

.comment-date {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.comment-text {
    color: #cfcfd6;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ── Botón Responder ── */
.btn-reply {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.82rem;
    cursor: pointer;
    margin-top: 10px;
    transition: all 0.2s;
    font-family: var(--font-family);
}

.btn-reply:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* ── Formulario de respuesta inline ── */
.reply-form-container {
    margin-top: 12px;
    padding: 15px;
    background: rgba(0,0,0,0.2);
    border-radius: 8px;
    border: 1px solid var(--card-border);
}

.reply-inputs {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.reply-name, .reply-body {
    width: 100%;
    padding: 10px 12px;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    color: var(--text-main);
    font-family: var(--font-family);
    font-size: 0.9rem;
    transition: border-color 0.3s;
    resize: vertical;
}

.reply-name:focus, .reply-body:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* ── Hilos de respuestas ── */
.replies-list {
    margin-top: 8px;
    padding-left: 20px;
    border-left: 2px solid rgba(0, 243, 255, 0.2);
}

.reply-item {
    background: rgba(0,0,0,0.15);
    border-radius: 8px;
    padding: 12px 15px;
    margin-top: 8px;
}

.reply-author {
    color: var(--accent-color) !important;
    font-size: 0.9rem !important;
}