@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;600;700;900&display=swap');

/* ============================
   RESET Y ESTILOS BASE
   ============================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: #1a1a1a;
    color: #f0f0f0;
    min-height: 100vh;
    text-align: center;
    position: relative;
    padding-top: 92px;
    padding-left: 20px;
    padding-right: 20px;
    padding-bottom: 20px;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('logo.webp') no-repeat center center/contain;
    opacity: 0.15;
    z-index: -1;
}

/* ============================
   HEADER Y NAVEGACIÓN
   ============================ */
.main-header {
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #ffc107;
    padding: 10px 20px;
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo img {
    height: 50px;
    width: auto;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 25px;
}

.nav-menu li a {
    color: #f0f0f0;
    text-decoration: none;
    font-weight: 700;
    font-size: 1em;
    padding: 5px 10px;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}

.nav-menu li a:hover {
    background-color: #ffc107;
    color: #1a1a1a;
}

.hamburger {
    display: none;
    background: none;
    border: none;
    color: #ffc107;
    font-size: 2em;
    cursor: pointer;
    padding: 5px 10px;
    flex-shrink: 0;
}

.mobile-menu {
    display: none;
    background-color: rgba(0, 0, 0, 0.95);
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    text-align: center;
    padding: 20px 0;
    z-index: 999;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu ul {
    list-style: none;
}

.mobile-menu ul li {
    margin-bottom: 20px;
}

.mobile-menu ul li a {
    color: #f0f0f0;
    text-decoration: none;
    font-size: 1.5em;
    font-weight: 700;
}

/* ============================
   CONTENEDOR PRINCIPAL
   ============================ */
.puertas-container {
    max-width: 1200px !important;
    margin: 40px auto !important;
    padding: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    border: none !important;
}

/* ============================
   HERO MODERNO PUERTAS
   ============================ */
.puertas-hero-modern {
    background: linear-gradient(135deg, rgba(0,0,0,0.95) 0%, rgba(26,26,26,0.9) 50%, rgba(42,42,42,0.85) 100%),
                url('https://images.unsplash.com/photo-1517646287270-a5a9ca602e5c?q=80&w=1974&auto=format&fit=crop') center/cover;
    padding: 60px 20px;
    margin: -40px -40px 40px -40px;
    border-bottom: 3px solid #ffc107;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero-overlay {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 193, 7, 0.15);
    border: 1px solid #ffc107;
    padding: 10px 20px;
    border-radius: 25px;
    margin-bottom: 25px;
    font-size: 0.9em;
    color: #ffc107;
    font-weight: 600;
}

.puertas-title-hero {
    font-size: 2.8em;
    color: #ffc107;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.puertas-subtitle-hero {
    font-size: 1.25em;
    color: #e0e0e0;
    margin-bottom: 35px;
    line-height: 1.7;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero-benefits-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 193, 7, 0.1);
    padding: 12px 20px;
    border-radius: 8px;
    border: 1px solid rgba(255, 193, 7, 0.3);
    font-size: 0.95em;
    color: #ffc107;
    font-weight: 600;
}

.benefit-item i {
    font-size: 1.2em;
}

/* ============================
   SECCIONES GENERALES
   ============================ */
.section-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 2.2em;
    color: #ffc107;
    margin-bottom: 20px;
}

.section-intro {
    font-size: 1.15em;
    color: #ddd;
    text-align: center;
    margin-bottom: 50px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

/* ============================
   INTRODUCCIÓN
   ============================ */
.puertas-intro-section {
    margin: 80px 0;
    padding: 0 20px;
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
}

.intro-text {
    font-size: 1.1em;
    color: #ddd;
    line-height: 1.8;
    margin-bottom: 20px;
}

/* ============================
   GRID DE PUERTAS
   ============================ */
.tipos-puertas-section {
    margin: 80px 0;
    padding: 0 20px;
}

.puertas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.puerta-card {
    background: rgba(42, 42, 42, 0.7);
    border-radius: 12px;
    padding: 35px 30px;
    border: 1px solid rgba(255, 193, 7, 0.2);
    transition: all 0.3s ease;
    text-align: left;
}

.puerta-card:hover {
    border-color: #ffc107;
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(255, 193, 7, 0.15);
}

.puerta-icon {
    font-size: 3em;
    color: #ffc107;
    margin-bottom: 20px;
    display: block;
}

.puerta-title {
    color: #ffc107;
    font-size: 1.5em;
    margin-bottom: 15px;
}

.puerta-text {
    color: #ddd;
    font-size: 1.05em;
    line-height: 1.7;
    margin-bottom: 25px;
}

.puerta-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.puerta-list li {
    color: #ddd;
    font-size: 0.95em;
    line-height: 1.7;
    margin-bottom: 10px;
    padding-left: 30px;
    position: relative;
}

.puerta-list li::before {
    content: '✓';
    color: #25D366;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.puerta-ideal {
    background: rgba(255, 193, 7, 0.1);
    padding: 12px 15px;
    border-radius: 6px;
    border-left: 3px solid #ffc107;
    font-size: 0.95em;
    color: #ddd;
    line-height: 1.5;
}

/* ============================
   MATERIALES Y ACABADOS
   ============================ */
.materiales-acabados-section {
    margin: 80px 0;
    padding: 0 20px;
}

.materiales-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    max-width: 1100px;
    margin: 0 auto 50px;
}

.material-card {
    background: rgba(42, 42, 42, 0.7);
    border-radius: 12px;
    padding: 30px;
    border: 2px solid rgba(255, 193, 7, 0.2);
    text-align: left;
    position: relative;
    transition: all 0.3s ease;
}

.material-card.destacado {
    border-color: #ffc107;
    background: rgba(255, 193, 7, 0.08);
}

.material-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(255, 193, 7, 0.15);
}

.destacado-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: #ffc107;
    color: #1a1a1a;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 700;
}

.material-card h3 {
    color: #ffc107;
    font-size: 1.3em;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.material-desc {
    color: #ddd;
    font-size: 1em;
    line-height: 1.6;
    margin-bottom: 20px;
}

.material-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.material-list li {
    color: #aaa;
    font-size: 0.95em;
    line-height: 1.7;
    margin-bottom: 8px;
    padding-left: 25px;
    position: relative;
}

.material-list li::before {
    content: '✓';
    color: #25D366;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.acabados-info {
    max-width: 1000px;
    margin: 0 auto;
}

.acabados-info h3 {
    color: #ffc107;
    font-size: 1.6em;
    margin-bottom: 30px;
}

.acabados-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
}

.acabado-item {
    background: rgba(42, 42, 42, 0.7);
    border-radius: 12px;
    padding: 25px;
    border: 1px solid rgba(255, 193, 7, 0.2);
    display: flex;
    gap: 20px;
    align-items: flex-start;
    text-align: left;
}

.acabado-item i {
    font-size: 2em;
    color: #ffc107;
    flex-shrink: 0;
}

.acabado-item h4 {
    color: #ffc107;
    font-size: 1.1em;
    margin-bottom: 8px;
}

.acabado-item p {
    color: #aaa;
    font-size: 0.95em;
    line-height: 1.5;
}

/* ============================
   PROCESO DE FABRICACIÓN
   ============================ */
.proceso-puertas-section {
    margin: 80px 0;
    padding: 0 20px;
}

.proceso-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.proceso-paso {
    background: rgba(42, 42, 42, 0.7);
    border-radius: 12px;
    padding: 30px 25px;
    border: 1px solid rgba(255, 193, 7, 0.2);
    text-align: left;
    position: relative;
}

.paso-numero {
    width: 50px;
    height: 50px;
    background: #ffc107;
    color: #1a1a1a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5em;
    font-weight: 900;
    margin-bottom: 20px;
}

.proceso-paso h3 {
    color: #ffc107;
    font-size: 1.3em;
    margin-bottom: 15px;
}

.proceso-paso p {
    color: #ddd;
    font-size: 1em;
    line-height: 1.7;
}

/* ============================
   PRECIOS
   ============================ */
.precios-puertas-section {
    margin: 80px 0;
    padding: 0 20px;
}

.precios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    max-width: 1100px;
    margin: 0 auto;
}

.precio-item {
    background: rgba(42, 42, 42, 0.7);
    border-radius: 12px;
    padding: 30px;
    border: 1px solid rgba(255, 193, 7, 0.2);
    text-align: left;
}

.precio-item h4 {
    color: #ffc107;
    font-size: 1.2em;
    margin-bottom: 15px;
}

.precio-valor {
    font-size: 1.8em;
    color: #25D366;
    font-weight: 700;
    margin-bottom: 10px;
}

.precio-desc {
    color: #aaa;
    font-size: 0.95em;
    line-height: 1.6;
}

.precios-aviso {
    color: #aaa;
    font-size: 0.95em;
    margin-top: 25px;
    padding: 15px 20px;
    background: rgba(255, 193, 7, 0.05);
    border-radius: 8px;
    text-align: left;
}

/* ============================
   AUTOMATIZACIÓN
   ============================ */
.automatizacion-section {
    margin: 80px 0;
    padding: 0 20px;
}

.automatizacion-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.auto-info,
.auto-ventajas {
    background: rgba(42, 42, 42, 0.7);
    border-radius: 12px;
    padding: 35px 30px;
    border: 1px solid rgba(255, 193, 7, 0.2);
    text-align: left;
}

.auto-info h3,
.auto-ventajas h3 {
    color: #ffc107;
    font-size: 1.5em;
    margin-bottom: 20px;
}

.auto-info p {
    color: #ddd;
    font-size: 1.05em;
    line-height: 1.7;
    margin-bottom: 20px;
}

.auto-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.auto-list li {
    color: #ddd;
    font-size: 1em;
    line-height: 1.8;
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
}

.auto-list li::before {
    content: '✓';
    color: #25D366;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.auto-list li strong {
    color: #fff;
}

.ventajas-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ventajas-list li {
    color: #ddd;
    font-size: 1em;
    line-height: 1.8;
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
}

.ventajas-list li::before {
    content: '✓';
    color: #25D366;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.auto-consulta {
    max-width: 900px;
    margin: 30px auto 0;
    padding: 20px 25px;
    background: rgba(255, 193, 7, 0.08);
    border-radius: 8px;
    border-left: 4px solid #ffc107;
    text-align: left;
    color: #ddd;
    font-size: 1.05em;
    line-height: 1.7;
}

.auto-consulta i {
    color: #ffc107;
    margin-right: 10px;
}

/* ============================
   GALERÍA DE PROYECTOS
   ============================ */
.galeria-puertas-section {
    margin: 80px 0;
    padding: 0 20px;
}

.galeria-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    max-width: 1100px;
    margin: 0 auto;
}

.galeria-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid rgba(255, 193, 7, 0.2);
    transition: all 0.3s ease;
    display: block;
}

.galeria-item:hover {
    border-color: #ffc107;
    transform: translateY(-5px);
}

.galeria-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.galeria-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.7) 100%);
    padding: 20px;
    text-align: left;
}

.galeria-overlay h4 {
    color: #ffc107;
    font-size: 1.2em;
    margin-bottom: 5px;
}

.galeria-overlay span {
    color: #25D366;
    font-size: 0.95em;
    font-weight: 600;
}

.galeria-item.ver-todos {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 193, 7, 0.1);
    min-height: 250px;
    text-decoration: none;
}

.ver-todos-content {
    text-align: center;
}

.ver-todos-content i {
    font-size: 3em;
    color: #ffc107;
    margin-bottom: 15px;
    display: block;
}

.ver-todos-content h4 {
    color: #ffc107;
    font-size: 1.3em;
    margin-bottom: 8px;
}

.ver-todos-content span {
    color: #aaa;
    font-size: 0.95em;
}

/* ============================
   ZONAS DE SERVICIO
   ============================ */
.zonas-servicio-section {
    margin: 80px 0;
    padding: 0 20px;
}

.zonas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 25px;
    max-width: 1000px;
    margin: 0 auto;
}

.zona-item {
    background: rgba(42, 42, 42, 0.7);
    border-radius: 12px;
    padding: 25px 20px;
    border: 1px solid rgba(255, 193, 7, 0.2);
    transition: all 0.3s ease;
}

.zona-item:hover {
    border-color: #ffc107;
    transform: translateY(-3px);
}

.zona-item i {
    font-size: 2.5em;
    color: #ffc107;
    margin-bottom: 15px;
    display: block;
}

.zona-item h4 {
    color: #ffc107;
    font-size: 1.1em;
    margin-bottom: 10px;
}

.zona-item p {
    color: #aaa;
    font-size: 0.9em;
    line-height: 1.5;
}

/* ============================
   CTA SECTION
   ============================ */
.cta-puertas-section {
    margin: 80px 0;
    padding: 0 20px;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(0,0,0,0.9) 0%, rgba(26,26,26,0.85) 100%);
    border-radius: 15px;
    padding: 50px 40px;
    border: 2px solid #ffc107;
}

.cta-title {
    font-size: 2.5em;
    color: #ffc107;
    margin-bottom: 15px;
}

.cta-subtitle {
    font-size: 1.2em;
    color: #ddd;
    margin-bottom: 35px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-llamada {
    background: #ffc107;
    color: #1a1a1a;
}

.btn-llamada:hover {
    background: #e0a800;
    transform: translateY(-2px);
}

.btn-whatsapp {
    background: #25D366;
    color: #fff;
}

.btn-whatsapp:hover {
    background: #1ebc57;
    transform: translateY(-2px);
}

/* ============================
   FOOTER
   ============================ */
.main-footer {
    background-color: rgba(0, 0, 0, 0.95);
    border-top: 1px solid #ffc107;
    padding: 30px 20px;
    text-align: center;
    margin-top: 80px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-content p {
    color: #aaa;
    margin-bottom: 10px;
}

.footer-content a {
    color: #ffc107;
    text-decoration: none;
}

.footer-content a:hover {
    text-decoration: underline;
}

/* ============================
   ÍNDICE DE CONTENIDOS (ACORDEÓN)
   ============================ */
.indice-contenidos {
    max-width: 900px;
    margin: 0 auto 40px;
    padding: 0 20px;
}

.indice-contenidos[open] {
    background: rgba(42, 42, 42, 0.8);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 12px;
    padding-bottom: 20px;
}

.indice-contenidos summary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 25px;
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.25);
    border-radius: 8px;
    cursor: pointer;
    color: #ffc107;
    font-size: 1.05em;
    list-style: none;
    transition: all 0.3s ease;
}

.indice-contenidos summary::-webkit-details-marker {
    display: none;
}

.indice-contenidos summary:hover {
    background: rgba(255, 193, 7, 0.18);
    border-color: #ffc107;
}

.indice-contenidos summary i:last-child {
    margin-left: auto;
    transition: transform 0.3s ease;
    font-size: 0.85em;
}

.indice-contenidos[open] summary i:last-child {
    transform: rotate(180deg);
}

.indice-lista {
    list-style: none;
    padding: 15px 0 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.indice-lista li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    color: #ddd;
    text-decoration: none;
    font-size: 0.92em;
    border-radius: 6px;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.indice-lista li a:hover {
    background: rgba(255, 193, 7, 0.08);
    color: #ffc107;
    border-color: rgba(255, 193, 7, 0.2);
}

.indice-lista li a i:first-child {
    color: #ffc107;
    font-size: 1em;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

/* ============================
   VOLVER AL ÍNDICE
   ============================ */
.volver-indice {
    text-align: center;
    margin: 30px 0 10px;
    padding: 0 20px;
}

.volver-indice a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #ffc107;
    text-decoration: none;
    font-size: 0.95em;
    font-weight: 600;
    padding: 8px 20px;
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 25px;
    background: rgba(255, 193, 7, 0.06);
    transition: all 0.3s ease;
}

.volver-indice a:hover {
    background: rgba(255, 193, 7, 0.15);
    border-color: #ffc107;
    transform: translateY(-2px);
}

.volver-indice a i {
    font-size: 0.85em;
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hamburger {
        display: block;
    }

    .puertas-title-hero {
        font-size: 2em;
    }

    .puertas-subtitle-hero {
        font-size: 1.1em;
    }

    .section-title {
        font-size: 1.8em;
        flex-direction: column;
    }

    .hero-benefits-grid {
        flex-direction: column;
        align-items: center;
    }

    .indice-contenidos {
        padding: 0 15px;
    }

    .indice-lista {
        grid-template-columns: 1fr;
        gap: 5px;
    }

    .indice-lista li a {
        padding: 14px 15px;
        font-size: 1em;
    }

    .volver-indice a {
        padding: 10px 22px;
        font-size: 0.9em;
        width: 100%;
        justify-content: center;
    }

    .puertas-grid,
    .proceso-grid,
    .galeria-grid {
        grid-template-columns: 1fr;
    }

    .benefit-item {
        width: 100%;
        justify-content: center;
    }

    .puertas-grid,
    .precios-grid {
        grid-template-columns: 1fr;
    }

    .materiales-grid {
        grid-template-columns: 1fr;
    }

    .acabados-grid {
        grid-template-columns: 1fr;
    }

    .proceso-grid {
        grid-template-columns: 1fr;
    }

    .automatizacion-content {
        grid-template-columns: 1fr;
    }

    .zonas-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-content {
        padding: 35px 20px;
    }

    .cta-title {
        font-size: 1.8em;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .galeria-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .puertas-title-hero {
        font-size: 1.6em;
    }

    .zonas-grid {
        grid-template-columns: 1fr;
    }
}