/* ==========================================================================
   Design System Variables: Industrial Architecture
   ========================================================================== */
:root {
    /* Colors - Dark Theme Custom */
    --color-primary: #0b1d3a;
    --color-primary-container: #08152a;
    --color-on-primary: #ffffff;
    
    --color-secondary: #af8570; 
    --color-accent: #af8570; 
    --color-on-accent: #ffffff;
    
    --color-surface: #3c3c3c;
    --color-surface-container-low: #323232;
    --color-surface-container-high: #484848;
    --color-surface-highest: #555555;
    --color-surface-lowest: #252525;

    --color-outline-variant: rgba(197, 198, 206, 0.15); /* Ghost Border 15% */
    
    --color-bg-base: var(--color-surface);
    --color-bg-light: var(--color-surface-container-low);
    --color-bg-dark: var(--color-surface-container-high);
    
    --color-text-main: #e2e2e2;      
    --color-text-muted: #a5a5a5;     
    --color-white: #ffffff;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing & Sizes - Adjusted */
    --container-max: 1200px;
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 5.5rem;

    /* Effects */
    --shadow-ambient: 0 24px 48px -12px rgba(11, 29, 58, 0.08); /* Soft glow */
    --shadow-hover: 0 32px 64px -16px rgba(11, 29, 58, 0.12);
    --transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    --radius-sm: 0; /* Sharp geometric edges */
    --radius-lg: 0;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-bg-base);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text-main);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem); /* display-lg responsive */
    font-weight: 700;
}

h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem); /* headline-md */
    padding-top: var(--space-md);
    font-weight: 600;
}

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

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

/* Utilities */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.text-center { text-align: center; }
.bg-light { background-color: var(--color-bg-light); }
.text-muted { color: var(--color-text-muted); }
.section-title { margin-bottom: var(--space-xl); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.4rem 2.75rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-on-accent);
}

.btn-accent:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-ambient);
}

.btn-secondary {
    background-color: rgba(53, 53, 53, 0.2); /* surface_variant at 20% */
    border: 1px solid rgba(197, 198, 206, 0.3); /* outline_variant at 30% */
    backdrop-filter: blur(12px);
    color: var(--color-text-main);
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
}

/* ==========================================================================
   Header / Navbar - Glassmorphism Level 3
   ========================================================================== */
.header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(60, 60, 60, 0.4); /* Dark glass */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo img {
    height: 75px;
    object-fit: contain;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-image: url('../assets/images/hero.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding-top: 140px; /* Separación del menú desktop absolute */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Subtle gradient blending 3c3c3c to 0b1d3a */
    background: linear-gradient(135deg, rgba(60, 60, 60, 0.85) 0%, rgba(11, 29, 58, 0.9) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-text-wrapper {
    max-width: 800px;
    margin-top: 2rem; /* Separa el texto de la cabecera */
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: 2.5rem; /* Separa el título de los beneficios */
}

.hero-benefits {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3.5rem; /* Separa el CTA del texto principal */
    max-width: 700px;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    animation: fadeInUp 0.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
    opacity: 0;
}

.benefit-item:nth-child(2) { animation-delay: 0.15s; }
.benefit-item:nth-child(3) { animation-delay: 0.3s; }

.benefit-number {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-accent);
    min-width: 40px;
}

.benefit-item p {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
    margin: 0;
    font-weight: 300;
}

.benefit-item strong {
    display: block;
    color: var(--color-white);
    font-weight: 700;
    margin-bottom: 0.2rem;
    letter-spacing: 0.02em;
}

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

/* ==========================================================================
   Filosofía y Visión
   ========================================================================== */
.filosofia {
    padding: var(--space-xl) 0;
    background-color: var(--color-surface);
}

.two-col-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
}

.filosofia-text h2 {
    margin-bottom: var(--space-md);
}

.filosofia-text p {
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

.image-wrapper {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-ambient);
}

.image-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top right, rgba(9, 27, 56, 0.2), transparent);
    pointer-events: none;
}

.image-wrapper img {
    transform: scale(1.02);
    transition: transform 1s ease;
}

.image-wrapper:hover img {
    transform: scale(1.05);
}

/* ==========================================================================
   Pilares de Gestión - Cards
   ========================================================================== */
.pilares {
    padding: var(--space-xl) 0;
    background-image: linear-gradient(rgba(50, 50, 50, 0.93), rgba(50, 50, 50, 0.93)), url('../assets/images/Polimero.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.card {
    background: var(--color-surface-lowest);
    padding: var(--space-md) var(--space-md);
    border-radius: var(--radius-sm);
    box-shadow: none; /* No shadow by default */
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: none; /* No-line rule */
}

.card::after {
    content: '';
    position: absolute;
    top: 16px;
    right: 16px;
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card:hover::after {
    transform: scale(2.5);
    border-radius: 50%;
    opacity: 0.8;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-ambient); /* Depth on hover */
    background: var(--color-surface-lowest); /* Tonal shift */
}

.icon-wrapper {
    background: var(--color-surface-lowest);
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    transition: all 0.4s ease;
}

.card:hover .icon-wrapper {
    background: var(--color-surface-container-high);
    border-radius: 50%;
}

.icon-main {
    font-size: 32px;
    color: var(--color-primary);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card:hover .icon-main {
    color: var(--color-accent);
    transform: scale(1.15) translateY(-2px);
}

.card h3 {
    font-size: 1.15rem;
    margin-bottom: var(--space-sm);
    padding-top: 0;
    color: var(--color-text-main);
}

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

/* ==========================================================================
   Autoridad Section
   ========================================================================== */
.autoridad {
    padding: var(--space-xl) 0;
    background-image: linear-gradient(rgba(35, 35, 35, 0.94), rgba(35, 35, 35, 0.94)), url('../assets/images/sello.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.autoridad-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.autoridad-card {
    background: var(--color-surface-lowest);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    border: none;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.autoridad-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

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

.autoridad-card:hover {
    background: var(--color-surface-lowest);
    transform: translateY(-8px);
    box-shadow: var(--shadow-ambient);
}

.authority-icon {
    font-size: 48px;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.autoridad-card:hover .authority-icon {
    transform: scale(1.15) rotate(-5deg);
}

.autoridad-card h3 {
    font-size: 1.1rem;
    line-height: 1.4;
    font-weight: 500;
    color: var(--color-text-main);
}

/* ==========================================================================
   Cierre y Contacto - Input Fields
   ========================================================================== */
.contacto {
    padding: var(--space-xl) 0;
    background-color: var(--color-surface-container-low);
}

.form-container {
    max-width: 900px; /* Aumentado ligeramente para el calendario */
}

.contacto-header h2 {
    margin-bottom: var(--space-sm);
}

.contacto-header p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    font-size: 1.1rem;
}

.contacto.claro {
    background-color: #ffffff;
}

.contacto.claro .contacto-header h2 {
    color: #091b38; /* Usando color-on-primary-fixed para contraste */
}

.contacto.claro .contacto-header p {
    color: #4a5568;
}

.lead-form {
    background: var(--color-surface);
    padding: var(--space-lg);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-ambient);
    border: 1px solid var(--color-outline-variant);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--color-text-muted);
    font-size: 0.75rem; /* label-md */
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-outline-variant);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-main);
    transition: var(--transition);
    border-radius: 0;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-bottom-color: var(--color-secondary); /* Copper */
    background-color: var(--color-surface-lowest);
    padding-left: 0.5rem;
}

.select-wrapper {
    position: relative;
}

.select-wrapper select {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 2.5rem;
}

/* Option styling for dark mode */
.select-wrapper select option {
    background-color: var(--color-surface-container-high);
    color: var(--color-text-main);
}

.select-icon {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-primary);
    pointer-events: none;
}

.btn-submit {
    width: 100%;
    margin-top: var(--space-sm);
}

.form-messages {
    margin-top: 1rem;
    text-align: center;
    font-weight: 500;
    font-size: 0.95rem;
}

/* ==========================================================================
   WhatsApp Floating Button
   ========================================================================== */
.whatsapp-float {
    position: fixed;
    bottom: var(--space-md);
    right: var(--space-md);
    background-color: var(--color-accent);
    color: var(--color-on-accent);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-ambient);
    z-index: 9999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-hover);
}

.whatsapp-float .material-symbols-outlined {
    font-size: 32px;
}

/* ==========================================================================
   Calendar Skeleton (Google Calendar Placeholder)
   ========================================================================== */
.calendar-skeleton {
    background: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-ambient);
    text-align: left;
}

.calendar-header {
    background: var(--color-surface-container-low);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-outline-variant);
}

.calendar-header h3 {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-top: 0;
}

.calendar-body {
    display: grid;
    grid-template-columns: 250px 1fr;
}

.calendar-sidebar {
    background: var(--color-surface);
    padding: var(--space-md);
    border-right: 1px solid var(--color-outline-variant);
}

.cs-avatar {
    width: 48px;
    height: 48px;
    background: var(--color-secondary);
    color: var(--color-on-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
}

.cs-name {
    font-weight: 600;
    color: var(--color-text-main);
    margin-bottom: 0.25rem;
}

.cs-duration {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.calendar-grid-content {
    background: var(--color-surface-lowest);
    padding: var(--space-md);
}

.cg-month {
    font-weight: 600;
    margin-bottom: var(--space-sm);
    font-size: 1.1rem;
}

.cg-days {
    display: flex;
    gap: 0.5rem;
    margin-bottom: var(--space-md);
    overflow-x: auto;
}

.cg-day {
    flex: 0 0 50px;
    height: 60px;
    background: var(--color-surface-container-high);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    border: 1px solid var(--color-outline-variant);
    cursor: pointer;
    transition: var(--transition);
}

.cg-day.active {
    background: var(--color-primary);
    color: var(--color-on-primary-fixed);
    border-color: var(--color-primary);
}

.cg-day.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.cg-slots {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.cg-slot {
    background: transparent;
    border: 1px solid var(--color-outline-variant);
    color: var(--color-text-main);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-body);
}

.cg-slot:hover {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--color-surface-lowest);
    color: var(--color-white);
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--color-outline-variant);
}

.footer-logo {
    height: 60px;
    margin: 0 auto var(--space-md);
    filter: brightness(0) invert(1);
}

.footer p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-brand {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: inline-block;
}

.footer-brand p {
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.ayr-logo {
    height: 50px;
    margin: 0 auto;
    object-fit: contain;
}

/* ==========================================================================
   Galería Slider
   ========================================================================== */
.galeria-slider {
    padding: var(--space-xl) 0;
    background-image: linear-gradient(rgba(60, 60, 60, 0.91), rgba(60, 60, 60, 0.91)), url('../assets/images/elastomero.jpeg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.swiper {
    width: 100%;
    padding: 0 0 3rem 0; /* Space for pagination */
}

.swiper-slide {
    text-align: center;
    font-size: 18px;
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    height: auto;
}

.swiper-slide img {
    display: block;
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-ambient);
    transition: var(--transition);
}

.swiper-slide img:hover {
    transform: scale(1.02);
}

.swiper-button-next,
.swiper-button-prev {
    color: var(--color-accent);
}

/* ==========================================================================
   Micro-Animations (Intersection Observer)
   ========================================================================== */
.reveal {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.reveal.active {
    opacity: 1;
}

.reveal-up {
    transform: translateY(40px);
}

.reveal-up.active {
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }

.swiper-pagination-bullet-active {
    background: var(--color-secondary);
}

/* ==========================================================================
   Responsive Queries
   ========================================================================== */
@media (max-width: 900px) {
    .two-col-grid {
        grid-template-columns: 1fr;
    }
    
    .filosofia-image {
        order: -1;
    }
    
    h1 {
        font-size: 2.5rem;
    }

    .calendar-body {
        grid-template-columns: 1fr;
    }
    
    .calendar-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--color-outline-variant);
    }
}

@media (max-width: 600px) {
    :root {
        --space-md: 1.5rem;
        --space-lg: 2.5rem;
        --space-xl: 4rem;
    }
    
    .header-container {
        height: 80px;
    }
    
    .logo img {
        height: 55px;
    }
    
    .hero {
        padding-top: 70px;
    }
    
    .btn-large {
        width: 100%;
    }
    
    .lead-form {
        padding: var(--space-md);
    }
}