/* ============================================
   DURKAL S.U.R.L. - ESTILOS PRINCIPALES
   Energía Solar Profesional para Cuba
   ============================================ */

:root {
    --primary: #0A2463;
    --primary-light: #1E3A8A;
    --primary-dark: #051937;
    --secondary: #F7B32B;
    --secondary-light: #FFD166;
    --secondary-dark: #E09F1F;
    --accent: #00B4D8;
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
    --shadow-glow: 0 0 40px rgba(247,179,43,0.3);
    
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    --transition: 300ms ease;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font-body);
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1,h2,h3,h4,h5,h6 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul,ol { list-style: none; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }

/* ============ LOADER - SOL ROTANDO SUAVEMENTE ============ */
.loader {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.sun-loader {
    position: relative;
    width: 120px;
    height: 120px;
    animation: sunRotateSlow 10s linear infinite;
}

.sun-loader .sun-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background: radial-gradient(circle, var(--secondary-light) 0%, var(--secondary) 60%, var(--secondary-dark) 100%);
    border-radius: 50%;
    box-shadow: 
        0 0 30px var(--secondary),
        0 0 60px rgba(247,179,43,0.5),
        0 0 90px rgba(247,179,43,0.3);
    animation: sunPulse 2s ease-in-out infinite;
}

.sun-loader .sun-ray {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 20px;
    background: linear-gradient(to top, var(--secondary), var(--secondary-light));
    border-radius: 3px;
    transform-origin: center center;
    box-shadow: 0 0 10px var(--secondary);
}

.sun-loader .sun-ray:nth-child(2) { transform: translate(-50%, -50%) rotate(0deg) translateY(-42px); }
.sun-loader .sun-ray:nth-child(3) { transform: translate(-50%, -50%) rotate(45deg) translateY(-42px); }
.sun-loader .sun-ray:nth-child(4) { transform: translate(-50%, -50%) rotate(90deg) translateY(-42px); }
.sun-loader .sun-ray:nth-child(5) { transform: translate(-50%, -50%) rotate(135deg) translateY(-42px); }
.sun-loader .sun-ray:nth-child(6) { transform: translate(-50%, -50%) rotate(180deg) translateY(-42px); }
.sun-loader .sun-ray:nth-child(7) { transform: translate(-50%, -50%) rotate(225deg) translateY(-42px); }
.sun-loader .sun-ray:nth-child(8) { transform: translate(-50%, -50%) rotate(270deg) translateY(-42px); }
.sun-loader .sun-ray:nth-child(9) { transform: translate(-50%, -50%) rotate(315deg) translateY(-42px); }

@keyframes sunRotateSlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes sunPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.08); }
}

.loader-text {
    margin-top: 2rem;
    color: var(--white);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.9;
    animation: textPulse 2s ease-in-out infinite;
}

@keyframes textPulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* ============ HEADER ============ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(247, 247, 247, 0.51);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    padding: 0.75rem 0;
}

.header.scrolled .nav-link { color: var(--gray-700); }
.header.scrolled .nav-link:hover { color: var(--primary); }
.header.scrolled .logo-text { color: var(--primary); }
.header.scrolled .menu-toggle span { background: var(--gray-800); }
.header.scrolled .cart-btn { background: var(--gray-100); color: var(--gray-700); }

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

.logo { display: flex; align-items: center; gap: 0.75rem; z-index: 10; }

.logo-icon {
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: var(--shadow-glow);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--white);
}

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

.nav-menu { display: flex; align-items: center; gap: 2rem; }

.nav-link {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link:hover, .nav-link.active { color: var(--secondary); }

.nav-actions { display: flex; align-items: center; gap: 0.75rem; }

.cart-btn {
    position: relative;
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    transition: var(--transition);
}

.cart-btn:hover { background: rgba(255,255,255,0.2); transform: scale(1.05); }

.cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    background: var(--secondary);
    color: var(--gray-900);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
    border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============ BUTTONS ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--gray-900);
    box-shadow: 0 4px 15px rgba(247,179,43,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(247,179,43,0.4);
}

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

.btn-secondary:hover {
    background: transparent;
    color: var(--white);
}

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

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

.btn-lg { padding: 1rem 2rem; font-size: 0.95rem; }
.btn-sm { padding: 0.625rem 1.25rem; font-size: 0.8rem; }

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37,211,102,0.3);
}

.btn-whatsapp:hover {
    background: #128C7E;
    box-shadow: 0 8px 25px rgba(37,211,102,0.4);
}

/* ============ HERO ============ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(247,179,43,0.15);
    color: var(--secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(247,179,43,0.3);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--white);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-title .highlight { color: var(--secondary); }

.hero-description {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.85);
    max-width: 520px;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.stat-item { text-align: left; }

.stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--secondary);
    line-height: 1;
}

.stat-value::after { content: '+'; }

.stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
    margin-top: 0.25rem;
}

.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 20px; }

/* Hero Image - Reemplaza la animación 3D */
.hero-image {
    position: relative;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.hero-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.hero-image-placeholder {
    font-size: 6rem;
    opacity: 0.9;
}

/* ============ SECTIONS ============ */
.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 3.5rem;
}

.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, rgba(247,179,43,0.1), rgba(247,179,43,0.2));
    color: var(--secondary-dark);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.section-description {
    color: var(--gray-500);
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ============ FEATURES ============ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 1.25rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    transform: scale(1.1);
}

.feature-title {
    font-size: 1.1rem;
    color: var(--gray-800);
    margin-bottom: 0.75rem;
}

.feature-description {
    color: var(--gray-500);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ============ PRODUCTS ============ */
.products-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2.5rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.product-image {
    height: 180px;
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-image .icon-placeholder {
    font-size: 3.5rem;
    transition: var(--transition);
}

.product-card:hover .icon-placeholder { transform: scale(1.15); }

.product-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    background: var(--secondary);
    color: var(--gray-900);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.product-badge.new { background: var(--accent); color: var(--white); }

.product-actions {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    opacity: 0;
    transform: translateX(10px);
    transition: var(--transition);
}

.product-card:hover .product-actions {
    opacity: 1;
    transform: translateX(0);
}

.product-action-btn {
    width: 36px;
    height: 36px;
    background: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.product-action-btn:hover { background: var(--primary); color: var(--white); }

.product-content { padding: 1.25rem; }

.product-category {
    font-size: 0.7rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.4rem;
}

.product-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.product-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.product-spec {
    background: var(--gray-100);
    color: var(--gray-600);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.65rem;
    font-weight: 500;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px solid var(--gray-100);
}

.product-price {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.product-price span { font-size: 0.85rem; font-weight: 500; color: var(--gray-500); }

.btn-cart {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    transition: var(--transition);
}

.btn-cart:hover { background: var(--secondary); color: var(--gray-900); transform: scale(1.1); }

/* ============ KITS ============ */
.kits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.kit-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    border: 2px solid var(--gray-100);
    transition: var(--transition);
    position: relative;
}

.kit-card.featured {
    border-color: var(--secondary);
    box-shadow: var(--shadow-glow);
}

.kit-card.featured::before {
    content: 'Más Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary);
    color: var(--gray-900);
    padding: 0.35rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.kit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.kit-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}

.kit-card.featured .kit-icon {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
}

.kit-name {
    font-size: 1.35rem;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.kit-power {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.kit-price {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.kit-price span { font-size: 1rem; font-weight: 500; color: var(--gray-500); }

.kit-includes h4 {
    font-size: 0.8rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

.kit-includes ul { margin-bottom: 1.5rem; }

.kit-includes li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.9rem;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.kit-includes li i { color: var(--success); font-size: 0.75rem; }

.kit-appliances {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.kit-appliance {
    background: var(--gray-100);
    color: var(--gray-600);
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
}

.kit-btn { width: 100%; }

/* ============ CTA ============ */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(247,179,43,0.1) 0%, transparent 70%);
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    color: var(--white);
    margin-bottom: 1.25rem;
}

.cta-description {
    color: rgba(255,255,255,0.85);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ============ FOOTER ============ */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

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

.footer-description {
    color: var(--gray-400);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social { display: flex; gap: 0.75rem; }

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: var(--transition);
}

.social-link:hover { background: var(--secondary); color: var(--gray-900); }

.footer-title {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.footer-links li { margin-bottom: 0.75rem; }

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--gray-400);
    font-size: 0.9rem;
}

.footer-contact i { color: var(--secondary); width: 16px; }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.85rem;
    color: var(--gray-500);
}

.footer-bottom a { color: var(--secondary); }
.footer-bottom a:hover { text-decoration: underline; }

/* ============ FLOATING ELEMENTS ============ */
.floating-whatsapp {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 999;
}

.floating-whatsapp a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--white);
    font-size: 1.75rem;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    animation: whatsappPulse 2s infinite;
    transition: var(--transition);
}

.floating-whatsapp a:hover { transform: scale(1.1); }

@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,0.4); }
    50% { box-shadow: 0 4px 35px rgba(37,211,102,0.6); }
}

.scroll-top {
    position: fixed;
    bottom: 95px;
    right: 25px;
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 998;
}

.scroll-top.visible { opacity: 1; visibility: visible; }
.scroll-top:hover { background: var(--secondary); color: var(--gray-900); transform: translateY(-3px); }

/* ============ CART MODAL ============ */
.cart-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
    transition: var(--transition);
    backdrop-filter: blur(4px);
}

.cart-overlay.open { opacity: 1; visibility: visible; }

.cart-modal {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 420px;
    height: 100vh;
    height: 100dvh; /* Soporte para móviles con barra de navegación */
    background: var(--white);
    box-shadow: var(--shadow-xl);
    z-index: 1001;
    transition: right 0.4s ease;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.cart-modal.open { right: 0; }

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-100);
    background: var(--gray-50);
    flex-shrink: 0;
}

.cart-title { font-size: 1.15rem; display: flex; align-items: center; gap: 0.6rem; }
.cart-title i { color: var(--primary); }

.cart-close {
    width: 40px;
    height: 40px;
    background: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    flex-shrink: 0;
}

.cart-close:hover { background: var(--gray-100); color: var(--gray-700); }

.cart-body { 
    flex: 1; 
    overflow-y: auto; 
    padding: 1.25rem;
    min-height: 0; /* Importante para que flex funcione con overflow */
}

.cart-empty {
    text-align: center;
    padding: 4rem 1.5rem;
    color: var(--gray-500);
}

.cart-empty i { font-size: 4rem; opacity: 0.3; margin-bottom: 1.25rem; display: block; }
.cart-empty p { margin-bottom: 1.5rem; font-size: 1.05rem; }

.cart-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--gray-100);
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: 0.75rem;
    transition: var(--transition);
}

.cart-item:hover { border-color: var(--gray-200); box-shadow: var(--shadow-sm); }

.cart-item-image {
    width: 70px;
    height: 70px;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    flex-shrink: 0;
}

.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name { font-weight: 600; margin-bottom: 0.3rem; font-size: 0.9rem; line-height: 1.3; }
.cart-item-price { color: var(--primary); font-weight: 700; font-size: 0.95rem; }

.cart-item-qty {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.6rem;
}

.cart-qty-btn {
    width: 28px;
    height: 28px;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--gray-600);
    transition: var(--transition);
    font-weight: 600;
}

.cart-qty-btn:hover { background: var(--primary); color: var(--white); }

.cart-item-qty span { font-weight: 600; min-width: 24px; text-align: center; font-size: 0.9rem; }

.cart-item-remove {
    color: var(--gray-400);
    font-size: 1.1rem;
    transition: var(--transition);
    align-self: center;
    padding: 0.5rem;
    flex-shrink: 0;
}

.cart-item-remove:hover { color: var(--error); }

.cart-footer { 
    padding: 1.25rem 1.5rem; 
    border-top: 1px solid var(--gray-100); 
    background: var(--gray-50);
    flex-shrink: 0;
}

.cart-subtotal {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.cart-subtotal strong { font-size: 1.25rem; color: var(--primary); }

.cart-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.cart-buttons .btn { 
    width: 100%; 
    justify-content: center;
}

/* ============ NOTIFICATIONS ============ */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: var(--white);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 9999;
    transform: translateX(120%);
    transition: transform 0.4s ease;
    max-width: 380px;
}

.notification.show { transform: translateX(0); }
.notification-success { border-left: 4px solid var(--success); }
.notification-success i { color: var(--success); font-size: 1.25rem; }
.notification-error { border-left: 4px solid var(--error); }
.notification-error i { color: var(--error); font-size: 1.25rem; }

.notification span { flex: 1; font-size: 0.95rem; line-height: 1.4; }

.notification-close {
    color: var(--gray-400);
    padding: 0.25rem;
    font-size: 1rem;
}

.notification-close:hover { color: var(--gray-600); }

/* ============ RESPONSIVE ============ */

/* Desktop Grande */
@media (max-width: 1200px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .kits-grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
}

/* Tablet Landscape / Desktop Pequeño */
@media (max-width: 992px) {
    .section { padding: 4rem 0; }
    
    /* Hero - Una columna, centrado */
    .hero { 
        padding: 100px 0 50px; 
        min-height: auto;
    }
    .hero-content { 
        grid-template-columns: 1fr; 
        text-align: center; 
        gap: 2rem;
    }
    .hero-text {
        order: 2;
    }
    .hero-image {
        order: 1;
        height: auto;
        max-width: 500px;
        margin: 0 auto;
    }
    .hero-image-placeholder {
        font-size: 5rem;
    }
    .hero-badge { 
        justify-content: center; 
    }
    .hero-title {
        font-size: 1.75rem;
    }
    .hero-description { 
        margin: 0 auto 1.5rem; 
        max-width: 100%; 
        padding: 0;
        font-size: 1rem;
    }
    .hero-stats { 
        justify-content: center; 
        flex-wrap: wrap; 
        gap: 1.5rem; 
    }
    .hero-buttons { 
        justify-content: center; 
        flex-wrap: wrap; 
    }
    
    /* ========== MENÚ MÓVIL DROPDOWN ========== */
    .nav-menu {
        position: absolute;
        top: 100%;
        right: 1rem;
        left: 1rem;
        background: var(--white);
        flex-direction: column;
        gap: 0;
        padding: 0.5rem 0;
        border-radius: var(--radius-xl);
        box-shadow: 0 10px 40px rgba(0,0,0,0.15);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s ease;
        z-index: 999;
        max-height: calc(100vh - 100px);
        overflow-y: auto;
    }
    
    .nav-menu.active { 
        opacity: 1; 
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-menu .nav-link { 
        font-size: 0.9rem; 
        color: var(--gray-700);
        text-align: left;
        padding: 0.875rem 1.25rem;
        display: block;
        border-bottom: 1px solid var(--gray-100);
        transition: all 0.2s ease;
    }
    
    .nav-menu .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-menu .nav-link:hover {
        background: var(--gray-50);
        color: var(--primary);
    }
    
    .nav-menu .nav-link.active {
        color: var(--primary);
        background: rgba(10, 36, 99, 0.05);
        font-weight: 600;
    }
    
    .nav-menu .nav-link::after {
        display: none;
    }
    
    .menu-toggle { 
        display: flex; 
        z-index: 1001;
    }
    
    /* Ocultar botón contactar en móvil */
    .nav-actions .btn { display: none; }
    
    /* Kits */
    .kits-grid { 
        grid-template-columns: 1fr; 
        max-width: 400px; 
        margin: 0 auto; 
    }
    .kit-card { padding: 1.5rem; }
    
    /* Products */
    .products-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    
    /* Features */
    .features-grid { gap: 1rem; }
    
    /* Section Headers */
    .section-header { margin-bottom: 2.5rem; }
    .section-title { font-size: 1.75rem; }
    .section-description { font-size: 1rem; }
}

/* Tablet Portrait */
@media (max-width: 768px) {
    .section { padding: 3rem 0; }
    .container { padding: 0 1rem; }
    
    /* Header */
    .header { padding: 0.75rem 0; }
    .logo-icon { width: 38px; height: 38px; font-size: 1.1rem; }
    .logo-text { font-size: 1rem; }
    
    /* Hero */
    .hero { 
        padding: 90px 0 40px; 
    }
    .hero-image {
        height: auto;
        max-width: 450px;
    }
    .hero-image-placeholder {
        font-size: 4rem;
    }
    .hero-title { 
        font-size: 1.5rem; 
        margin-bottom: 0.75rem; 
    }
    .hero-description { 
        font-size: 0.95rem; 
        margin-bottom: 1.25rem; 
    }
    .hero-stats { gap: 1rem; }
    .stat-value { font-size: 1.5rem; }
    .stat-label { font-size: 0.7rem; }
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    .hero-buttons .btn {
        width: 100%;
    }
    
    /* Features */
    .features-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
    .feature-card { padding: 1rem; }
    .feature-icon { width: 50px; height: 50px; font-size: 1.3rem; margin-bottom: 0.75rem; }
    .feature-title { font-size: 0.9rem; }
    .feature-description { font-size: 0.8rem; }
    
    /* Products */
    .products-header { 
        flex-direction: column; 
        align-items: stretch; 
        text-align: center; 
        gap: 1rem; 
    }
    .products-header .btn { align-self: center; }
    .products-grid { gap: 0.75rem; }
    .product-image { height: 130px; }
    .product-image .icon-placeholder { font-size: 2.25rem; }
    .product-content { padding: 0.875rem; }
    .product-name { font-size: 0.8rem; line-height: 1.3; }
    .product-category { font-size: 0.6rem; }
    .product-specs { display: none; }
    .product-footer { padding-top: 0.6rem; }
    .product-price { font-size: 0.95rem; }
    .product-price span { font-size: 0.7rem; }
    .btn-cart { width: 34px; height: 34px; }
    
    /* Kits */
    .kits-grid { max-width: 100%; }
    .kit-card { padding: 1rem; }
    .kit-name { font-size: 1.1rem; }
    .kit-price { font-size: 1.5rem; }
    .kit-includes li { font-size: 0.8rem; padding: 0.35rem 0; }
    
    /* CTA */
    .cta-title { font-size: 1.35rem; }
    .cta-description { font-size: 0.95rem; }
    .cta-buttons { flex-direction: column; align-items: stretch; }
    .cta-buttons .btn { width: 100%; }
    
    /* Footer */
    .footer { padding: 2.5rem 0 1.5rem; }
    .footer-grid { 
        grid-template-columns: 1fr; 
        text-align: center; 
        gap: 1.5rem; 
    }
    .footer-brand { max-width: 100%; }
    .footer-social { justify-content: center; }
    .footer-title { margin-bottom: 0.75rem; font-size: 0.9rem; }
    .footer-links li { margin-bottom: 0.4rem; }
    .footer-links a { font-size: 0.85rem; }
    .footer-contact li { justify-content: center; font-size: 0.85rem; }
    .footer-bottom { 
        flex-direction: column; 
        text-align: center; 
        gap: 0.5rem; 
        padding-top: 1.5rem;
        font-size: 0.75rem;
    }
    
    /* Cart Modal - Responsive */
    .cart-modal { 
        max-width: 100%; 
        width: 100%;
    }
    .cart-header { padding: 1rem; }
    .cart-title { font-size: 1rem; }
    .cart-body { padding: 1rem; }
    .cart-footer { 
        padding: 1rem; 
        flex-shrink: 0;
    }
    .cart-subtotal { margin-bottom: 0.75rem; }
    .cart-buttons { gap: 0.5rem; }
    .cart-buttons .btn { 
        padding: 0.75rem 1rem; 
        font-size: 0.85rem;
        min-height: 44px;
    }
    .cart-item { padding: 0.75rem; gap: 0.75rem; }
    .cart-item-image { width: 55px; height: 55px; font-size: 1.4rem; }
    .cart-item-name { font-size: 0.8rem; }
    .cart-item-price { font-size: 0.85rem; }
    
    /* Notifications */
    .notification {
        top: 70px;
        right: 0.75rem;
        left: 0.75rem;
        max-width: none;
        padding: 0.875rem 1rem;
    }
    .notification span { font-size: 0.85rem; }
}

/* Móvil Grande */
@media (max-width: 576px) {
    html { font-size: 15px; }
    .section { padding: 2.5rem 0; }
    .container { padding: 0 0.875rem; }
    
    /* Hero */
    .hero { padding: 80px 0 40px; }
    .hero-badge { font-size: 0.65rem; padding: 0.35rem 0.7rem; }
    .hero-title { font-size: 1.35rem; }
    .hero-description { font-size: 0.9rem; }
    .hero-image { 
        height: auto; 
        max-width: 320px;
    }
    .hero-image-placeholder {
        font-size: 3.5rem;
    }
    .hero-stats { 
        flex-direction: row; 
        justify-content: space-around;
        width: 100%;
        gap: 0.5rem;
    }
    .stat-item { text-align: center; }
    .stat-value { font-size: 1.35rem; }
    .stat-label { font-size: 0.65rem; }
    .hero-buttons { flex-direction: column; width: 100%; gap: 0.6rem; }
    .hero-buttons .btn { width: 100%; padding: 0.75rem 1.25rem; font-size: 0.85rem; }
    
    /* Section Headers */
    .section-header { margin-bottom: 2rem; }
    .section-tag { font-size: 0.7rem; padding: 0.3rem 0.75rem; }
    .section-title { font-size: 1.5rem; }
    .section-description { font-size: 0.9rem; }
    
    /* Features - 1 columna en móvil pequeño */
    .features-grid { grid-template-columns: 1fr; gap: 1rem; }
    .feature-card { 
        display: flex; 
        flex-direction: row; 
        align-items: center; 
        text-align: left; 
        gap: 1rem;
        padding: 1rem;
    }
    .feature-icon { 
        width: 50px; 
        height: 50px; 
        font-size: 1.25rem; 
        margin: 0;
        flex-shrink: 0;
    }
    .feature-card:hover .feature-icon { transform: none; }
    .feature-title { font-size: 0.9rem; margin-bottom: 0.25rem; }
    .feature-description { font-size: 0.8rem; }
    
    /* Products - 2 columnas compactas */
    .products-grid { 
        grid-template-columns: repeat(2, 1fr); 
        gap: 0.5rem; 
    }
    .product-card { border-radius: var(--radius-lg); }
    .product-image { height: 120px; }
    .product-image .icon-placeholder { font-size: 2rem; }
    .product-badge { 
        font-size: 0.5rem; 
        padding: 0.15rem 0.4rem; 
        top: 0.4rem; 
        left: 0.4rem; 
    }
    .product-actions { display: none; }
    .product-content { padding: 0.75rem; }
    .product-category { font-size: 0.55rem; margin-bottom: 0.2rem; }
    .product-name { 
        font-size: 0.75rem; 
        margin-bottom: 0.3rem; 
        line-height: 1.25;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .product-footer { padding-top: 0.5rem; }
    .product-price { font-size: 0.9rem; }
    .product-price span { display: none; }
    .btn-cart { width: 32px; height: 32px; font-size: 0.8rem; }
    
    /* Kits */
    .kit-card { padding: 1rem; }
    .kit-card.featured::before { font-size: 0.6rem; top: -10px; }
    .kit-icon { width: 50px; height: 50px; font-size: 1.25rem; margin-bottom: 1rem; }
    .kit-name { font-size: 1.1rem; }
    .kit-power { font-size: 0.85rem; }
    .kit-price { font-size: 1.5rem; margin-bottom: 1rem; }
    .kit-includes h4 { font-size: 0.7rem; }
    .kit-includes li { font-size: 0.8rem; padding: 0.35rem 0; }
    .kit-includes li i { font-size: 0.65rem; }
    .kit-appliances { gap: 0.3rem; margin-bottom: 1rem; }
    .kit-appliance { font-size: 0.6rem; padding: 0.2rem 0.5rem; }
    .kit-btn { padding: 0.75rem 1rem; font-size: 0.8rem; }
    
    /* CTA */
    .cta-section { padding: 3rem 0; }
    .cta-title { font-size: 1.25rem; }
    .cta-description { font-size: 0.9rem; margin-bottom: 1.5rem; }
    .cta-buttons .btn { padding: 0.875rem 1.5rem; font-size: 0.85rem; }
    
    /* Footer */
    .footer { padding: 2.5rem 0 1rem; }
    .footer-logo .logo-icon { width: 40px; height: 40px; }
    .footer-logo .logo-text { font-size: 1.1rem; }
    .footer-description { font-size: 0.85rem; }
    .footer-social { gap: 0.5rem; }
    .social-link { width: 38px; height: 38px; }
    .footer-title { font-size: 0.9rem; }
    .footer-links a { font-size: 0.85rem; }
    .footer-contact li { font-size: 0.85rem; }
    .footer-bottom { font-size: 0.75rem; }
    
    /* Floating elements */
    .floating-whatsapp { bottom: 15px; right: 15px; }
    .floating-whatsapp a { width: 50px; height: 50px; font-size: 1.4rem; }
    .scroll-top { 
        bottom: 75px; 
        right: 15px; 
        width: 40px; 
        height: 40px; 
        font-size: 0.9rem;
    }
    
    /* Cart Modal - Móvil */
    .cart-modal {
        width: 100%;
        max-width: 100%;
    }
    .cart-header { padding: 0.75rem; }
    .cart-close { width: 36px; height: 36px; }
    .cart-body { 
        padding: 0.75rem; 
        flex: 1;
        overflow-y: auto;
    }
    .cart-empty { padding: 2rem 1rem; }
    .cart-empty i { font-size: 3rem; }
    .cart-empty p { font-size: 0.9rem; }
    .cart-item { padding: 0.625rem; gap: 0.5rem; }
    .cart-item-image { width: 50px; height: 50px; font-size: 1.25rem; }
    .cart-item-name { font-size: 0.75rem; }
    .cart-item-price { font-size: 0.8rem; }
    .cart-qty-btn { width: 26px; height: 26px; font-size: 0.85rem; }
    .cart-item-qty span { font-size: 0.75rem; min-width: 18px; }
    .cart-footer { 
        padding: 0.75rem 0.75rem 3rem; 
        flex-shrink: 0;
    }
    .cart-subtotal { 
        font-size: 0.95rem; 
        margin-bottom: 0.625rem; 
    }
    .cart-subtotal strong { font-size: 1rem; }
    .cart-buttons { gap: 0.5rem; }
    .cart-buttons .btn { 
        padding: 0.625rem 0.875rem; 
        font-size: 0.8rem;
        min-height: 40px;
        white-space: nowrap;
    }
}

/* Móvil Pequeño */
@media (max-width: 400px) {
    .container { padding: 0 0.625rem; }
    
    /* Hero */
    .hero { padding: 75px 0 35px; }
    .hero-title { font-size: 1.25rem; }
    .hero-description { font-size: 0.85rem; }
    .hero-image { 
        height: auto; 
        max-width: 300px;
    }
    .hero-image-placeholder {
        font-size: 3rem;
    }
    .hero-stats { gap: 0.35rem; }
    .stat-value { font-size: 1.2rem; }
    .stat-label { font-size: 0.6rem; }
    .hero-buttons .btn { padding: 0.65rem 1rem; font-size: 0.8rem; }
    
    /* Products - más compactos */
    .products-grid { gap: 0.4rem; }
    .product-image { height: 100px; }
    .product-image .icon-placeholder { font-size: 1.75rem; }
    .product-content { padding: 0.625rem; }
    .product-name { font-size: 0.7rem; }
    .product-price { font-size: 0.8rem; }
    .btn-cart { width: 28px; height: 28px; font-size: 0.7rem; }
    
    /* Features */
    .feature-card { padding: 0.75rem; gap: 0.625rem; }
    .feature-icon { width: 42px; height: 42px; font-size: 1rem; }
    .feature-title { font-size: 0.8rem; }
    .feature-description { font-size: 0.7rem; }
    
    /* Kits */
    .kit-price { font-size: 1.25rem; }
    .kit-includes li { font-size: 0.7rem; }
    
    /* Cart - Ultra compacto */
    .cart-header { padding: 0.625rem; }
    .cart-title { font-size: 0.9rem; }
    .cart-close { width: 32px; height: 32px; }
    .cart-body { padding: 0.625rem; }
    .cart-item { padding: 0.5rem; gap: 0.4rem; }
    .cart-item-image { width: 45px; height: 45px; font-size: 1.1rem; }
    .cart-item-name { font-size: 0.7rem; }
    .cart-item-price { font-size: 0.75rem; }
    .cart-qty-btn { width: 24px; height: 24px; font-size: 0.8rem; }
    .cart-item-qty span { font-size: 0.7rem; min-width: 16px; }
    .cart-item-remove { font-size: 0.9rem; padding: 0.25rem; }
    .cart-footer { padding: 0.625rem 0.625rem 2.25rem; }
    .cart-subtotal { font-size: 0.85rem; margin-bottom: 0.5rem; }
    .cart-subtotal strong { font-size: 0.95rem; }
    .cart-buttons { gap: 0.4rem; }
    .cart-buttons .btn { 
        padding: 0.5rem 0.75rem; 
        font-size: 0.75rem;
        min-height: 36px;
    }
}

/* Pantallas muy pequeñas */
@media (max-width: 350px) {
    html { font-size: 14px; }
    .container { padding: 0 0.5rem; }
    
    .hero { padding: 70px 0 30px; }
    .hero-title { font-size: 1.15rem; }
    .hero-image { 
        height: auto; 
        max-width: 250px;
    }
    .hero-image-placeholder { font-size: 2.5rem; }
    .stat-value { font-size: 1.1rem; }
    .stat-label { font-size: 0.55rem; }
    
    .products-grid { gap: 0.35rem; }
    .product-image { height: 90px; }
    .product-content { padding: 0.5rem; }
    .product-name { font-size: 0.65rem; }
    .product-price { font-size: 0.75rem; }
    .btn-cart { width: 26px; height: 26px; font-size: 0.65rem; }
    
    /* Cart - Mínimo */
    .cart-header { padding: 0.5rem; }
    .cart-title { font-size: 0.85rem; }
    .cart-title i { font-size: 0.9rem; }
    .cart-close { width: 30px; height: 30px; font-size: 0.9rem; }
    .cart-body { padding: 0.5rem; }
    .cart-empty { padding: 1.5rem 0.5rem; }
    .cart-empty i { font-size: 2.5rem; }
    .cart-empty p { font-size: 0.8rem; }
    .cart-item { padding: 0.4rem; gap: 0.35rem; }
    .cart-item-image { width: 40px; height: 40px; font-size: 1rem; }
    .cart-item-name { font-size: 0.65rem; line-height: 1.2; }
    .cart-item-price { font-size: 0.7rem; }
    .cart-qty-btn { width: 22px; height: 22px; font-size: 0.75rem; }
    .cart-item-qty span { font-size: 0.65rem; min-width: 14px; }
    .cart-item-qty { gap: 0.25rem; margin-top: 0.4rem; }
    .cart-item-remove { font-size: 0.85rem; padding: 0.2rem; }
    .cart-footer { padding: 0.5rem 0.5rem 3rem; }
    .cart-subtotal { font-size: 0.8rem; margin-bottom: 0.4rem; }
    .cart-subtotal strong { font-size: 0.9rem; }
    .cart-buttons { gap: 0.35rem; }
    .cart-buttons .btn { 
        padding: 0.45rem 0.5rem; 
        font-size: 0.7rem;
        min-height: 34px;
        letter-spacing: 0;
    }
}