/**
 * Corporate Swiss Style Design System
 * 
 * Minimalist, grid-based design language inspired by:
 * - Electrolux Professional
 * - Winterhalter
 * - Swiss Style (International Typographic Style)
 * 
 * @version 2.0.0
 */

:root {
    /* Primary Brand Colors - Corporate Navy */
    --navy-primary: #0D2F5F;
    --navy-dark: #091D3E;
    --navy-light: #1A4A8F;
    
    /* Accent Colors - Industrial Orange (action buttons only) */
    --orange-action: #E65100;
    --orange-hover: #FF6D00;
    
    /* Neutral Palette - Matte Grays */
    --gray-900: #1A1A1A;
    --gray-800: #2D2D2D;
    --gray-700: #404040;
    --gray-600: #5C5C5C;
    --gray-500: #7A7A7A;
    --gray-400: #9E9E9E;
    --gray-300: #BDBDBD;
    --gray-200: #E0E0E0;
    --gray-100: #F5F5F5;
    --white: #FFFFFF;
    
    /* Semantic Colors */
    --success: #2E7D32;
    --warning: #F57C00;
    --error: #C62828;
    
    /* Typography Scale */
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing Scale (8px base) */
    --space-1: 0.5rem;
    --space-2: 1rem;
    --space-3: 1.5rem;
    --space-4: 2rem;
    --space-5: 2.5rem;
    --space-6: 3rem;
    --space-8: 4rem;
    --space-10: 5rem;
    --space-12: 6rem;
    --space-16: 8rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows - Subtle */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ==========================================================================
   Layout Grid
   ========================================================================== */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.container-narrow {
    max-width: 960px;
}

.container-wide {
    max-width: 1440px;
}

.grid {
    display: grid;
    gap: var(--space-4);
}

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

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

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

@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Section Spacing - Ample Whitespace
   ========================================================================== */

.section {
    padding: var(--space-16) 0;
}

.section-sm {
    padding: var(--space-10) 0;
}

.section-lg {
    padding: var(--space-16) 0;
}

/* ==========================================================================
   Navigation - Clean, Corporate
   ========================================================================== */

.nav-corporate {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow var(--transition-base);
}

.nav-corporate.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo img {
    height: 56px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    text-decoration: none;
    padding: var(--space-1) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--navy-primary);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--navy-primary);
}

.nav-link:hover::after {
    width: 100%;
}

/* ==========================================================================
   Buttons - Action-Focused
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--navy-primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--navy-dark);
}

.btn-action {
    background: var(--orange-action);
    color: var(--white);
}

.btn-action:hover {
    background: var(--orange-hover);
}

.btn-outline {
    background: transparent;
    color: var(--navy-primary);
    border: 2px solid var(--navy-primary);
}

.btn-outline:hover {
    background: var(--navy-primary);
    color: var(--white);
}

.btn-white {
    background: var(--white);
    color: var(--navy-primary);
}

.btn-white:hover {
    background: var(--gray-100);
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: 1rem;
}

/* ==========================================================================
   Cards - Clean, No Animation
   ========================================================================== */

.card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-body {
    padding: var(--space-4);
}

.card-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--gray-100);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==========================================================================
   Hero Section - Corporate, Static
   ========================================================================== */

.hero-corporate {
    background: var(--navy-primary);
    color: var(--white);
    padding: var(--space-16) 0;
    padding-top: calc(80px + var(--space-16));
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 640px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-bottom: var(--space-4);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-4);
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-6);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* ==========================================================================
   Stats Section - Clean Numbers
   ========================================================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
    text-align: center;
}

.stat-item {
    padding: var(--space-4);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--navy-primary);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================================================
   Brand Grid - Minimal
   ========================================================================== */

.brand-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-3);
}

.brand-card {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    background: var(--gray-100);
    border-radius: var(--radius-md);
    text-align: center;
    transition: background var(--transition-fast);
}

.brand-card:hover {
    background: var(--gray-200);
}

.brand-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 1024px) {
    .brand-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 640px) {
    .brand-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================================================
   Services Grid
   ========================================================================== */

.service-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    text-align: center;
    transition: border-color var(--transition-fast);
}

.service-card:hover {
    border-color: var(--navy-primary);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-3);
    color: var(--navy-primary);
    font-size: 1.5rem;
}

.service-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-800);
}

/* ==========================================================================
   Feature List - Clean
   ========================================================================== */

.feature-item {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--navy-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.feature-content {
    flex: 1;
}

.feature-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--navy-primary);
    margin-bottom: var(--space-1);
}

.feature-desc {
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ==========================================================================
   Process Steps
   ========================================================================== */

.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.process-step {
    text-align: center;
}

.process-number {
    width: 64px;
    height: 64px;
    background: var(--navy-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    font-size: 1.5rem;
    font-weight: 700;
}

.process-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--navy-primary);
    margin-bottom: var(--space-2);
}

.process-desc {
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .process-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: var(--navy-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.contact-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: 2px;
}

.contact-value {
    font-size: 1rem;
    color: var(--gray-800);
}

.contact-value a {
    color: var(--navy-primary);
    text-decoration: none;
}

.contact-value a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   CTA Banner - Simple
   ========================================================================== */

.cta-banner {
    background: var(--navy-primary);
    color: var(--white);
    padding: var(--space-10) 0;
    text-align: center;
}

.cta-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--space-4);
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
}

/* ==========================================================================
   Footer - Corporate
   ========================================================================== */

.footer-corporate {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--space-10) 0 var(--space-6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.footer-brand {
    color: var(--white);
}

.footer-brand img {
    height: 48px;
    margin-bottom: var(--space-3);
    filter: brightness(0) invert(1);
}

.footer-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3);
}

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

.footer-links li {
    margin-bottom: var(--space-1);
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-social {
    display: flex;
    gap: var(--space-2);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--orange-action);
    color: var(--white);
}

.footer-bottom {
    padding-top: var(--space-4);
    border-top: 1px solid var(--gray-800);
    text-align: center;
    font-size: 0.75rem;
}

.footer-bottom a {
    color: var(--gray-400);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: var(--white);
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Floating Buttons - Minimal
   ========================================================================== */

.float-btn {
    position: fixed;
    bottom: var(--space-4);
    z-index: 90;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-fast);
    text-decoration: none;
}

.float-btn:hover {
    transform: scale(1.1);
}

.float-btn-whatsapp {
    right: var(--space-4);
    background: #25D366;
    color: var(--white);
}

.float-btn-phone {
    left: var(--space-4);
    background: var(--navy-primary);
    color: var(--white);
}

@media (min-width: 769px) {
    .float-btn-phone {
        display: none;
    }
}

/* ==========================================================================
   Lazy Loading Images
   ========================================================================== */

img[loading="lazy"] {
    opacity: 0;
    transition: opacity var(--transition-slow);
}

img[loading="lazy"].loaded,
img[loading="lazy"][src] {
    opacity: 1;
}

/* ==========================================================================
   Focus States - Accessibility
   ========================================================================== */

textarea:focus-visible {
    outline: 2px solid var(--navy-primary);
    outline-offset: 2px;
}

/* ==========================================================================
   Utility Classes - Glass & Gradients
   ========================================================================== */

.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.glass-premium {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.text-transparent {
    color: transparent;
}

.bg-clip-text {
    background-clip: text;
    -webkit-background-clip: text;
}

.bg-gradient-to-r {
    background-image: linear-gradient(to right, var(--tw-gradient-stops));
}

.from-blue-600 { --tw-gradient-from: #2563eb; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(37, 99, 235, 0)); }
.to-indigo-600 { --tw-gradient-to: #4f46e5; }

.from-orange-500 { --tw-gradient-from: #f97316; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(249, 115, 22, 0)); }
.to-red-500 { --tw-gradient-to: #ef4444; }

.from-green-500 { --tw-gradient-from: #22c55e; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(34, 197, 94, 0)); }
.to-teal-500 { --tw-gradient-to: #14b8a6; }

.from-purple-500 { --tw-gradient-from: #a855f7; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(168, 85, 247, 0)); }
.to-pink-500 { --tw-gradient-to: #ec4899; }

.hover\:scale-105:hover {
    transform: scale(1.05);
}

.transition-transform {
    transition-property: transform;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 300ms;
}

.duration-300 {
    transition-duration: 300ms;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--navy-primary);
    color: var(--white);
    padding: var(--space-2) var(--space-4);
    z-index: 1000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-10);
}

.section-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
    color: var(--orange-action);
    margin-bottom: var(--space-2);
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 600;
    color: var(--navy-primary);
    margin-bottom: var(--space-2);
}

.section-desc {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ==========================================================================
   Mobile Navigation
   ========================================================================== */

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: none;
}

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

.mobile-menu-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
}

.mobile-menu-panel {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 300px;
    max-width: 100%;
    background: var(--white);
    padding: var(--space-4);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
}

.mobile-menu.open .mobile-menu-panel {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.mobile-menu-close {
    width: 40px;
    height: 40px;
    background: var(--gray-100);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--gray-700);
}

.mobile-nav-link {
    display: block;
    padding: var(--space-2) 0;
    color: var(--gray-800);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid var(--gray-200);
}

.mobile-nav-link:hover {
    color: var(--navy-primary);
}