/* ==========================================================================
   CSS PRINCIPAL - INDUSTRIAS PIRIGUAO
   Diseño: Industrial Premium (Modo Oscuro Nativo)
   ========================================================================== */

/* Importación de Fuentes */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Rajdhani:wght@500;600;700&display=swap');

/* Variables de Diseño (Design Tokens) */
:root {
    --color-bg-primary: #0D1113;       /* Negro grafito */
    --color-bg-secondary: #1B2226;     /* Acero oscuro */
    --color-bg-card: #242C30;          /* Gris industrial */
    --color-text-primary: #F2E8DA;     /* Marfil claro */
    --color-text-secondary: #B8AEA2;   /* Gris cálido */
    --color-premium: #B77A4A;          /* Bronce / Cobre */
    --color-premium-hover: #9E6436;
    --color-glow: #F5A94C;             /* Dorado fuego (brillo soldadura) */
    --color-metal-line: rgba(167, 173, 176, 0.15); /* Acero claro translúcido */
    --color-metal-line-active: #A7ADB0; /* Acero claro sólido */
    --color-whatsapp: #25D366;
    --color-whatsapp-hover: #128C7E;
    
    --font-titles: 'Rajdhani', sans-serif;
    --font-body: 'Montserrat', sans-serif;
    
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-slow: all 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    --header-height: 95px;
    --container-width: 1200px;
}

/* Reset y Estilos Globales */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-titles);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-text-primary);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-smooth);
}

img, video {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

/* Utilidades de Diseño */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 100px 0;
}

.text-center { text-align: center; }
.text-premium { color: var(--color-premium); }
.text-glow { color: var(--color-glow); }

.grid {
    display: grid;
    gap: 30px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Componente de Título */
.section-title {
    margin-bottom: 60px;
    position: relative;
    display: inline-block;
}

.section-title h2 {
    font-size: 2.8rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--color-premium);
    transition: var(--transition-smooth);
}

.section-title:hover::after {
    width: 100%;
    background-color: var(--color-glow);
    box-shadow: 0 0 10px var(--color-glow);
}

/* Botones Premium */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-titles);
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--color-premium);
    color: var(--color-bg-primary);
    box-shadow: 0 4px 15px rgba(183, 122, 74, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-glow);
    box-shadow: 0 6px 20px rgba(245, 169, 76, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-premium);
}

.btn-secondary:hover {
    background-color: rgba(183, 122, 74, 0.1);
    border-color: var(--color-glow);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background-color: var(--color-whatsapp);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    background-color: var(--color-whatsapp-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(18, 140, 126, 0.5);
}

.btn i {
    margin-right: 8px;
    font-size: 1.2rem;
}

/* Header Premium con Glassmorphism */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(13, 17, 19, 0.75);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-metal-line);
    z-index: 1000;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
}

header.scrolled {
    height: 75px;
    background: rgba(13, 17, 19, 0.9);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 70px;
    width: auto;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--color-metal-line);
    transition: var(--transition-smooth);
}

header.scrolled .logo-img {
    height: 55px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-premium), var(--color-glow));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-bg-primary);
    font-family: var(--font-titles);
    font-weight: 700;
    font-size: 1.5rem;
    box-shadow: 0 0 10px rgba(183, 122, 74, 0.5);
}

.logo-text {
    font-family: var(--font-titles);
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

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

nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    font-family: var(--font-titles);
    font-weight: 500;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-premium);
    transition: var(--transition-smooth);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Menú Hamburguesa para Móvil */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: 1.8rem;
    cursor: pointer;
}

/* Footer */
footer {
    background-color: #080A0B;
    border-top: 1px solid var(--color-metal-line);
    padding: 80px 0 30px;
    color: var(--color-text-secondary);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: url('../assets/logo/logo.webp') no-repeat center/contain;
    opacity: 0.3;
    pointer-events: none;
    z-index: 0;
}

.footer-grid, 
.footer-bottom {
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-info .logo {
    margin-bottom: 20px;
}

.footer-info p {
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.footer-socials {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-metal-line);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--color-text-primary);
}

.social-link:hover {
    background-color: var(--color-premium);
    color: var(--color-bg-primary);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(183, 122, 74, 0.4);
}

.footer-links h3,
.footer-contact h3 {
    font-size: 1.3rem;
    color: var(--color-text-primary);
    margin-bottom: 25px;
    position: relative;
}

.footer-links h3::after,
.footer-contact h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--color-premium);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a:hover {
    color: var(--color-premium);
    padding-left: 5px;
}

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-contact li {
    display: flex;
    gap: 12px;
    font-size: 0.95rem;
}

.footer-contact li i {
    color: var(--color-premium);
    font-size: 1.1rem;
    margin-top: 3px;
}

.footer-bottom {
    border-top: 1px solid var(--color-metal-line);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

/* Tarjetas Generales (Cards) */
.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-metal-line);
    border-radius: var(--border-radius-md);
    padding: 40px 30px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-premium), var(--color-glow));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-smooth);
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(183, 122, 74, 0.4);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 15px rgba(183, 122, 74, 0.05);
}

.card:hover::before {
    transform: scaleX(1);
}

/* Badge Superior */
.badge {
    display: inline-block;
    padding: 6px 14px;
    background-color: rgba(183, 122, 74, 0.15);
    border: 1px solid var(--color-premium);
    color: var(--color-glow);
    font-family: var(--font-titles);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 50px;
    margin-bottom: 20px;
}

/* Botón flotante de WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: var(--color-whatsapp);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3), 0 0 20px rgba(37, 211, 102, 0.2);
    z-index: 999;
    transition: var(--transition-smooth);
}

.whatsapp-float:hover {
    background-color: var(--color-whatsapp-hover);
    transform: scale(1.1) rotate(10deg);
}

/* Hero Section (Fondo de Video o Simulación) */
.hero {
    position: relative;
    height: 100vh;
    min-height: 650px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background-color: var(--color-bg-primary);
}

.hero-video-container video,
.hero-video-placeholder {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-video-placeholder {
    background: linear-gradient(rgba(13, 17, 19, 0.8), rgba(27, 34, 38, 0.85)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%231B2226"/><path d="M10 10L90 90M90 10L10 90" stroke="%23242C30" stroke-width="1"/></svg>');
    background-size: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(27, 34, 38, 0.4) 0%, rgba(13, 17, 19, 0.95) 90%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 10;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 25px;
    line-height: 1.05;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
    max-width: 680px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.hero-footer-text {
    font-family: var(--font-titles);
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-left: 2px solid var(--color-premium);
    padding-left: 15px;
}

/* Slider de Antes/Después */
.before-after-container {
    position: relative;
    width: 100%;
    height: 480px;
    overflow: hidden;
    border-radius: var(--border-radius-md);
    border: 2px solid var(--color-metal-line);
    user-select: none;
}

.ba-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.ba-before {
    z-index: 1;
}

.ba-after {
    width: 50%; /* Controlado por JS */
    z-index: 2;
    border-right: 3px solid var(--color-premium);
}

.ba-label {
    position: absolute;
    bottom: 20px;
    padding: 6px 14px;
    background-color: rgba(13, 17, 19, 0.8);
    backdrop-filter: blur(5px);
    font-family: var(--font-titles);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 1px;
    font-size: 0.9rem;
    border-radius: var(--border-radius-sm);
    z-index: 10;
}

.ba-label.before-label {
    right: 20px;
    border-left: 3px solid var(--color-glow);
}

.ba-label.after-label {
    left: 20px;
    border-left: 3px solid var(--color-premium);
}

.ba-handle {
    position: absolute;
    top: 0;
    left: 50%; /* Controlado por JS */
    width: 4px;
    height: 100%;
    background-color: var(--color-premium);
    z-index: 3;
    cursor: ew-resize;
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(183, 122, 74, 0.8);
}

.ba-handle-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    background-color: var(--color-bg-primary);
    border: 3px solid var(--color-premium);
    color: var(--color-premium);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    transition: var(--transition-smooth);
}

.ba-handle:hover .ba-handle-button,
.ba-handle-button:hover {
    color: var(--color-glow);
    border-color: var(--color-glow);
    box-shadow: 0 0 15px var(--color-glow);
}

/* Formularios de Contacto/Cotizar */
.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-family: var(--font-titles);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--color-text-secondary);
}

.form-control {
    width: 100%;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-metal-line);
    color: var(--color-text-primary);
    padding: 14px 18px;
    font-family: var(--font-body);
    font-size: 1rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-premium);
    box-shadow: 0 0 10px rgba(183, 122, 74, 0.2);
    background-color: var(--color-bg-card);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23B77A4A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'></polyline></svg>");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 18px;
    padding-right: 45px;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* Estructura para Re-utilización de Grid en Admin */
.admin-login-card {
    max-width: 450px;
    margin: 100px auto;
}

/* Modal de Producto */
.modal-layout-grid {
    grid-template-columns: 1.1fr 1fr;
    max-width: 900px;
    width: 100%;
}