/* ============================================================
   DECABO ISEA — Arquitecto Full Stack
   Estilos Globales v2.0 — SEO/GEO Optimized
   ============================================================ */

/* ─── VARIABLES ─────────────────────────────────────────────── */
:root {
    --accent: #c4450c;
    --accent-hover: #a33707;
    --accent-light: rgba(196, 69, 12, 0.12);
    --accent-glow: rgba(196, 69, 12, 0.35);
    --dark-bg: #0a0a0a;
    --dark-secondary: #111111;
    --dark-card: #1a1a1a;
    --dark-border: rgba(255, 255, 255, 0.06);
    --text-light: #f8f9fa;
    --text-muted: rgba(255, 255, 255, 0.55);
    --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── BASE ──────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }
body { background: var(--dark-bg); color: var(--text-light); font-family: var(--font-primary); }

::selection { background: var(--accent); color: #fff; }
::-moz-selection { background: var(--accent); color: #fff; }

/* Scrollbar personalizada */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--dark-bg); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ─── UTILITY CLASSES ───────────────────────────────────────── */
.text-accent { color: var(--accent) !important; }
.bg-accent { background: var(--accent) !important; }
.bg-dark-card { background: var(--dark-card) !important; }
.bg-dark-secondary { background: var(--dark-secondary) !important; }

.btn-accent {
    background: var(--accent);
    color: #fff;
    border: none;
    transition: var(--transition);
}
.btn-accent:hover,
.btn-accent:focus {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-glow);
}
.btn-accent:active { transform: translateY(0); }

.btn-outline-accent {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
    transition: var(--transition);
}
.btn-outline-accent:hover,
.btn-outline-accent:focus {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
}

.section-padding { padding: 5rem 0; }
@media (max-width: 768px) { .section-padding { padding: 3rem 0; } }

.section-badge {
    display: inline-block;
    background: var(--accent-light);
    color: var(--accent);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.15;
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
    margin-top: 12px;
}
.section-title.text-center::after { margin-left: auto; margin-right: auto; }

@media (max-width: 768px) {
    .section-title { font-size: 1.8rem; }
}

/* ─── NAVBAR ────────────────────────────────────────────────── */
.navbar .nav-link {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: var(--transition);
    border-radius: var(--radius-sm);
}
.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: var(--text-light);
    background: rgba(255, 255, 255, 0.05);
}
.navbar .nav-link.active {
    color: var(--accent);
}

.nav-cta {
    padding: 0.45rem 1.2rem !important;
    font-size: 0.85rem !important;
    font-weight: 600;
}

/* ─── HERO ───────────────────────────────────────────────────── */
.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
}
.hero .highlight {
    color: var(--accent);
    position: relative;
}
.hero .highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--accent-light);
    border-radius: 3px;
    z-index: -1;
}

.hero-stats {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--dark-border);
}
.hero-stats h3 { font-size: 2rem; font-weight: 800; }

.hero-card {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}
.hero-card:hover {
    background: rgba(255, 255, 255, 0.07);
    transform: translateY(-4px);
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .hero-stats h3 { font-size: 1.4rem; }
}

/* ─── SERVICE CARDS ──────────────────────────────────────────── */
.service-card {
    background: #fff;
    border: none;
    border-radius: var(--radius-md);
    padding: 2rem;
    transition: var(--transition);
    cursor: default;
    height: 100%;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}
.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent), #ff6b35);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
}
.service-icon i { font-size: 1.6rem; color: #fff; }

/* ─── PROJECT CARDS ──────────────────────────────────────────── */
.project-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
}
.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}
.project-card .card-body { padding: 1.5rem; }
.project-card .tech-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
    padding: 3px 10px;
    border-radius: 50px;
    font-size: 0.7rem;
    margin: 2px;
}
.project-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: #fff;
}

/* ─── BLOG CARDS ─────────────────────────────────────────────── */
.blog-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
}
.blog-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}
.blog-card .card-body { padding: 1.5rem; }
.blog-card .card-title a:hover { color: var(--accent) !important; }

.category-badge {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 3px 12px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ─── PRODUCT CARDS ──────────────────────────────────────────── */
.product-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    height: 100%;
}
.product-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

/* ─── CTA SECTION ────────────────────────────────────────────── */
.cta-section {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: 3.5rem;
}
@media (max-width: 768px) { .cta-section { padding: 2rem 1.5rem; } }

/* ─── BLOG DETAIL ────────────────────────────────────────────── */
.blog-detail h1 {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.2;
}
.blog-detail .lead {
    font-size: 1.1rem;
    color: var(--text-muted);
}
.blog-detail h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2rem;
    color: var(--text-light);
}
.blog-detail h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 1.5rem;
}
.blog-detail p, .blog-detail li {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}
.blog-detail .comparativa-table {
    background: var(--dark-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    width: 100%;
    border-collapse: collapse;
}
.blog-detail .comparativa-table th {
    background: var(--accent);
    color: #fff;
    padding: 12px 15px;
    text-align: left;
    font-size: 0.85rem;
}
.blog-detail .comparativa-table td {
    padding: 10px 15px;
    border-bottom: 1px solid var(--dark-border);
    font-size: 0.85rem;
}
.blog-detail .comparativa-table tr:last-child td { border-bottom: none; }
.blog-detail .comparativa-table td:first-child { font-weight: 600; color: var(--text-light); }

/* ─── SIDEBAR ────────────────────────────────────────────────── */
.sidebar-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

/* ─── CONTACT FORM ───────────────────────────────────────────── */
.contact-form .form-control,
.newsletter-form .form-control {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--dark-border);
    color: var(--text-light);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    transition: var(--transition);
}
.contact-form .form-control:focus,
.newsletter-form .form-control:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
    color: var(--text-light);
}
.contact-form .form-control::placeholder { color: var(--text-muted); }
.contact-form label { color: var(--text-muted); font-size: 0.85rem; font-weight: 500; }

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.contact-info-item .icon {
    width: 44px;
    height: 44px;
    background: var(--accent-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
}

/* ─── FOOTER ─────────────────────────────────────────────────── */
.site-footer {
    background: #050505;
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--dark-border);
}
.footer-links li { margin-bottom: 0.6rem; }
.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    transition: var(--transition);
}
.footer-links a:hover { color: var(--accent); padding-left: 4px; }

.social-links { display: flex; gap: 0.6rem; }
.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
    font-size: 1rem;
}
.social-icon:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-3px);
}

.footer-divider { border-color: var(--dark-border); }
.footer-heading { position: relative; padding-bottom: 0.5rem; }
.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

/* ─── BACK TO TOP ────────────────────────────────────────────── */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: 0 4px 20px var(--accent-glow);
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ─── PAGINATION ─────────────────────────────────────────────── */
.pagination-custom .page-link {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    color: var(--text-muted);
    transition: var(--transition);
}
.pagination-custom .page-link:hover {
    background: var(--accent-light);
    color: var(--accent);
    border-color: var(--accent);
}
.pagination-custom .page-item.active .page-link {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* ─── ANIMATIONS ─────────────────────────────────────────────── */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
}
@keyframes fadeInUp {
    to { opacity: 1; transform: translateY(0); }
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ─── RESPONSIVE TWEAKS ──────────────────────────────────────── */
@media (max-width: 576px) {
    .hero-stats { padding: 1rem; }
    .hero-stats h3 { font-size: 1.2rem; }
    .hero-stats small { font-size: 0.7rem; }
}