/* ========================================
   PERNOS CyC - Stylesheet
   Versión: 1.0.0
   ======================================== */

/* ========== THEME VARIABLES (Material Design 2) ========== */
:root {
    /* Tema 1: Naranja Industrial (Default) - Paleta Material */
    --primary-50: #FFF3E0;
    --primary-100: #FFE0B2;
    --primary-200: #FFCC80;
    --primary-300: #FFB74D;
    --primary: #FF9800;        /* 500 - Color principal */
    --primary-dark: #F57C00;   /* 700 */
    --primary-darker: #E65100; /* 900 */
    
    --secondary-50: #FAFAFA;
    --secondary-100: #F5F5F5;
    --secondary-200: #EEEEEE;
    --secondary: #424242;      /* 800 - Gris oscuro */
    --secondary-dark: #212121; /* 900 */
    
    --accent: #FFD54F;         /* Amber 300 */
    --accent-dark: #FFC107;    /* Amber 500 */
    
    /* Surface & Background */
    --surface: #FFFFFF;
    --background: #FAFAFA;
    
    /* Error */
    --error: #B00020;
    --error-light: #CF6679;
    
    /* "On" colors - Text & Icons on colored surfaces */
    --on-primary: #FFFFFF;
    --on-secondary: #FFFFFF;
    --on-background: #000000;
    --on-surface: #000000;
    --on-error: #FFFFFF;
    
    /* Legacy variables for compatibility */
    --bg-light: var(--background);
    --bg-dark: #303030;
    --text-dark: #212121;
    --text-light: #757575;
    --border: #E0E0E0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.25);
    --overlay-light: rgba(255, 152, 0, 0.08);
    --overlay-medium: rgba(255, 152, 0, 0.15);
}

/* Tema 2: Azul Acero - Material Blue + Teal */
[data-theme="azul-acero"] {
    --primary-50: #E3F2FD;
    --primary-100: #BBDEFB;
    --primary-200: #90CAF9;
    --primary-300: #64B5F6;
    --primary: #2196F3;        /* Blue 500 */
    --primary-dark: #1976D2;   /* Blue 700 */
    --primary-darker: #0D47A1; /* Blue 900 */
    
    --secondary-50: #ECEFF1;
    --secondary-100: #CFD8DC;
    --secondary-200: #B0BEC5;
    --secondary: #455A64;      /* Blue Grey 700 */
    --secondary-dark: #263238; /* Blue Grey 900 */
    
    --accent: #4DD0E1;         /* Cyan 300 */
    --accent-dark: #00BCD4;    /* Cyan 500 */
    
    --surface: #FFFFFF;
    --background: #ECEFF1;
    
    --error: #B00020;
    --error-light: #CF6679;
    
    --on-primary: #FFFFFF;
    --on-secondary: #FFFFFF;
    --on-background: #000000;
    --on-surface: #000000;
    --on-error: #FFFFFF;
    
    --bg-light: #ECEFF1;
    --bg-dark: #37474F;
    --overlay-light: rgba(33, 150, 243, 0.08);
    --overlay-medium: rgba(33, 150, 243, 0.15);
}

/* Tema 3: Verde Técnico - Material Green */
[data-theme="verde-tecnico"] {
    --primary-50: #E8F5E9;
    --primary-100: #C8E6C9;
    --primary-200: #A5D6A7;
    --primary-300: #81C784;
    --primary: #4CAF50;        /* Green 500 */
    --primary-dark: #388E3C;   /* Green 700 */
    --primary-darker: #1B5E20; /* Green 900 */
    
    --secondary-50: #E0F2F1;
    --secondary-100: #B2DFDB;
    --secondary-200: #80CBC4;
    --secondary: #00695C;      /* Teal 800 */
    --secondary-dark: #004D40; /* Teal 900 */
    
    --accent: #FFB74D;         /* Orange 300 */
    --accent-dark: #FF9800;    /* Orange 500 */
    
    --surface: #FFFFFF;
    --background: #F1F8E9;
    
    --error: #B00020;
    --error-light: #CF6679;
    
    --on-primary: #FFFFFF;
    --on-secondary: #FFFFFF;
    --on-background: #000000;
    --on-surface: #000000;
    --on-error: #FFFFFF;
    
    --bg-light: #F1F8E9;
    --bg-dark: #2E7D32;
    --overlay-light: rgba(76, 175, 80, 0.08);
    --overlay-medium: rgba(76, 175, 80, 0.15);
}

/* Tema 4: Rojo Industrial - Material Red */
[data-theme="rojo-industrial"] {
    --primary-50: #FFEBEE;
    --primary-100: #FFCDD2;
    --primary-200: #EF9A9A;
    --primary-300: #E57373;
    --primary: #F44336;        /* Red 500 */
    --primary-dark: #D32F2F;   /* Red 700 */
    --primary-darker: #B71C1C; /* Red 900 */
    
    --secondary-50: #ECEFF1;
    --secondary-100: #CFD8DC;
    --secondary-200: #B0BEC5;
    --secondary: #455A64;      /* Blue Grey 700 */
    --secondary-dark: #263238; /* Blue Grey 900 */
    
    --accent: #FFAB40;         /* Orange A200 */
    --accent-dark: #FF6D00;    /* Orange A700 */
    
    --surface: #FFFFFF;
    --background: #FFEBEE;
    
    --error: #B00020;
    --error-light: #CF6679;
    
    --on-primary: #FFFFFF;
    --on-secondary: #FFFFFF;
    --on-background: #000000;
    --on-surface: #000000;
    --on-error: #FFFFFF;
    
    --bg-light: #FFEBEE;
    --bg-dark: #C62828;
    --overlay-light: rgba(244, 67, 54, 0.08);
    --overlay-medium: rgba(244, 67, 54, 0.15);
}

/* Tema 5: Gris Profesional - Material Grey */
[data-theme="gris-profesional"] {
    --primary-50: #FAFAFA;
    --primary-100: #F5F5F5;
    --primary-200: #EEEEEE;
    --primary-300: #E0E0E0;
    --primary: #9E9E9E;        /* Grey 500 */
    --primary-dark: #616161;   /* Grey 700 */
    --primary-darker: #212121; /* Grey 900 */
    
    --secondary-50: #ECEFF1;
    --secondary-100: #CFD8DC;
    --secondary-200: #B0BEC5;
    --secondary: #546E7A;      /* Blue Grey 600 */
    --secondary-dark: #37474F; /* Blue Grey 800 */
    
    --accent: #FFEB3B;         /* Yellow 500 */
    --accent-dark: #FDD835;    /* Yellow 600 */
    
    --surface: #FFFFFF;
    --background: #FAFAFA;
    
    --error: #B00020;
    --error-light: #CF6679;
    
    --on-primary: #FFFFFF;
    --on-secondary: #FFFFFF;
    --on-background: #000000;
    --on-surface: #000000;
    --on-error: #FFFFFF;
    
    --bg-light: #FAFAFA;
    --bg-dark: #424242;
    --overlay-light: rgba(158, 158, 158, 0.08);
    --overlay-medium: rgba(158, 158, 158, 0.15);
}

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

body {
    font-family: 'Exo 2', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    color: var(--on-background);
    background-color: var(--background);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========== HEADER ========== */
.header {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    color: var(--on-secondary);
    padding: 0.3rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    box-shadow: 0 4px 12px var(--shadow-strong);
    transition: background 0.3s ease;
}

.header-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    flex-direction: column;
    text-align: center;
}

.logo {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 100px;
    width: auto;
    filter: brightness(1.08) contrast(1.15);
    transition: all 0.3s ease;
}

.logo:hover .logo-img {
    filter: brightness(1.15) contrast(1.2) drop-shadow(0 4px 12px var(--primary));
    transform: translateY(-2px);
}

.logo-text {
    font-family: 'Bebas Neue', 'Arial Narrow', 'Impact', 'Franklin Gothic Medium', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 2px;
    color: var(--on-secondary);
    display: none;
}

.contact-info {
    display: none;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-icon {
    color: var(--primary);
    font-size: 1.2rem;
}

/* ========== HERO SECTION ========== */
.hero {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--bg-dark) 100%);
    color: var(--on-secondary);
    padding: 3rem 1.5rem;
    position: relative;
    overflow: hidden;
    transition: background 0.3s ease;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 35px,
            var(--overlay-light) 35px,
            var(--overlay-light) 70px
        );
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, var(--overlay-medium) 0%, transparent 60%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: 'Bebas Neue', 'Arial Narrow', 'Impact', 'Franklin Gothic Medium', sans-serif;
    font-size: clamp(3.5rem, 8vw, 6rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: 4px;
    color: var(--on-secondary);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
}

.hero-text {
    font-size: 1rem;
    max-width: 700px;
    margin-bottom: 2rem;
    color: #f5f5f5;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    flex-direction: column;
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

/* ========== BUTTONS ========== */
.btn {
    padding: 0.85rem 2rem;
    font-size: 0.95rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--on-primary);
    box-shadow: 0 4px 15px var(--overlay-medium);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px var(--overlay-medium);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
}

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

.btn-secondary:hover {
    background: var(--on-secondary);
    color: var(--secondary);
    transform: translateY(-3px);
}

/* ========== ICON SPACING ========== */
.btn i,
.contact-info-title i,
.contact-detail-icon i {
    margin-right: 0.5rem;
}

/* ========== WHATSAPP FLOAT ========== */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25D366;
    color: white;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5);
    z-index: 999;
    cursor: pointer;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.7);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5);
    }
    50% {
        box-shadow: 0 4px 30px rgba(37, 211, 102, 0.8);
    }
}

/* ========== FEATURES ========== */
.features {
    background: var(--background);
    padding: 3rem 1.5rem;
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    list-style: none;
    padding: 0;
}

.feature {
    background: var(--surface);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary);
    will-change: transform, box-shadow;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-strong);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--secondary);
}

.feature-text {
    color: var(--text-light);
}

/* ========== PRODUCTS ========== */
.products {
    padding: 3rem 1.5rem;
    background: var(--surface);
}

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

.section-title {
    font-family: 'Bebas Neue', 'Arial Narrow', 'Impact', 'Franklin Gothic Medium', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    text-align: center;
    margin-bottom: 1rem;
    color: var(--secondary);
    letter-spacing: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.product-card {
    background: linear-gradient(135deg, var(--background) 0%, var(--surface) 100%);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    width: 100%;
    box-sizing: border-box;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px var(--shadow-strong);
    border-color: var(--primary);
}

.product-image {
    width: 100%;
    height: 250px;
    object-fit: contain;
    object-position: center;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.product-card:hover .product-image {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3), 0 0 0 2px var(--primary);
    background: linear-gradient(135deg, #3d5a6d 0%, var(--secondary) 100%);
}

.product-name {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--secondary);
}

.product-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.product-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.product-cta:hover {
    gap: 1rem;
    color: var(--primary-dark);
}

/* ========== CONTACT ========== */
.contact {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    color: var(--on-secondary);
    padding: 3rem 1.5rem;
    position: relative;
    overflow: hidden;
    transition: background 0.3s ease;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 35px,
            var(--overlay-light) 35px,
            var(--overlay-light) 70px
        );
    pointer-events: none;
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.contact-info-box {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.contact-info-box:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-3px);
}

.contact-info-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.contact-detail-icon {
    color: var(--primary);
    font-size: 1.5rem;
    min-width: 30px;
}

.contact-detail a {
    color: var(--on-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-detail a:hover {
    color: var(--primary);
}

/* ========== FOOTER ========== */
.footer {
    background: #0a0a0a;
    color: #999;
    padding: 2rem;
    text-align: center;
}

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

.footer-text {
    margin-bottom: 1rem;
}

.footer-link {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: white;
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== ACCESSIBILITY ========== */
/* Respeta preferencias de usuarios que prefieren menos movimiento */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .whatsapp-float {
        animation: none !important;
    }
}



/* ========== RESPONSIVE - MOBILE FIRST ========== */
/* Tablet: 768px en adelante */
@media (min-width: 768px) {
    .header-container {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
        padding: 0 2rem;
    }
    
    .logo-img {
        height: 115px;
    }
    
    .logo-text {
        display: block;
        font-size: 1.9rem;
    }
    
    .contact-info {
        display: flex;
        flex-direction: row;
        gap: 2rem;
        font-size: 0.9rem;
    }
    
    .hero {
        padding: 6rem 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.9rem;
        margin-bottom: 2rem;
    }
    
    .hero-text {
        font-size: 1.25rem;
        margin-bottom: 3rem;
    }
    
    .hero-cta {
        flex-direction: row;
    }
    
    .btn {
        width: auto;
        padding: 1rem 2.5rem;
        font-size: 1.1rem;
    }
    
    .whatsapp-float {
        bottom: 30px;
        right: 30px;
        width: 65px;
        height: 65px;
        font-size: 2.2rem;
    }
    
    .features {
        padding: 4rem 2rem;
    }
    
    .products {
        padding: 5rem 2rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact {
        padding: 5rem 2rem;
    }
    
    .contact-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 3rem;
        margin-top: 3rem;
    }
}

/* Desktop: 1200px en adelante */
@media (min-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
    
    .features-container {
        grid-template-columns: repeat(3, 1fr);
    }
}