/*
 * MolarCity.com - Main Stylesheet
 * Mobile-first responsive design
 * Color Palette: Primary Blue #0EA5E9, Dark Blue #1E3A8A
 * Typography: Poppins (headings), Inter (body)
 */

/* ===== CSS RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-blue: #0EA5E9;
    --primary-blue-dark: #0284C7;
    --dark-blue: #1E3A8A;
    --dark-blue-light: #1E40AF;
    --light-blue: #E0F2FE;
    --white: #FFFFFF;
    --black: #000000;
    --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;
    --success-green: #10B981;
    --error-red: #EF4444;
    --warning-yellow: #F59E0B;
    
    /* Typography */
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

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

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

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--primary-blue-dark);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

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

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

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

.logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: none;
    list-style: none;
    gap: 2rem;
}

.nav-menu.active {
    display: flex;
}

.nav-link {
    color: var(--gray-700);
    font-weight: 500;
    transition: color var(--transition-base);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width var(--transition-base);
}

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

.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-600);
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.lang-btn.active,
.lang-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    margin: 5px 0;
    transition: all var(--transition-base);
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 1.5rem 4rem;
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--dark-blue-light) 100%);
    color: var(--white);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://cdn.abacus.ai/images/0b643971-d912-499b-ab56-cab6a4495e5b.png');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

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

.hero-description {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 4rem;
}

.hero-stat-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.hero-stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.hero-stat-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.hero-stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.hero-stat-text {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ===== SECTION COMMON STYLES ===== */
.section {
    padding: 4rem 1.5rem;
}

.section-dark {
    background: var(--gray-50);
}

.section-blue {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--dark-blue-light) 100%);
    color: var(--white);
}

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

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1rem;
}

.section-title .highlight {
    color: var(--primary-blue);
}

.section-blue .section-title .highlight {
    color: var(--primary-blue);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
}

.section-blue .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

/* ===== WHY SECTION ===== */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.why-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.why-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.why-card-icon {
    width: 60px;
    height: 60px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.875rem;
    margin-bottom: 1.5rem;
}

.why-card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.why-card-text {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.why-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-blue);
    font-weight: 600;
    transition: gap var(--transition-base);
}

.why-card-link:hover {
    gap: 0.75rem;
}

/* ===== STATS SECTION ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.stat-text {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ===== TESTIMONIALS ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.testimonial-stars {
    color: var(--warning-yellow);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    color: var(--gray-700);
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: var(--gray-200);
    overflow: hidden;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-info h4 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.testimonial-location {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.testimonial-procedure {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ===== BEFORE/AFTER ===== */
.before-after {
    margin-top: 4rem;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.before-after-header {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--dark-blue-light) 100%);
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.before-after-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    background: var(--white);
}

.before-after-image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.before-after-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.before-after-label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 0, 0, 0.7);
    color: var(--white);
    border-radius: var(--radius-md);
    font-weight: 600;
}

/* ===== CONTACT FORM ===== */
.contact-section {
    background: var(--gray-50);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.contact-form {
    background: var(--white);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--gray-700);
}

.form-control {
    width: 100%;
    padding: 0.875rem 1.25rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

.form-error {
    color: var(--error-red);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.form-error.active {
    display: block;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-info-content h4 {
    margin-bottom: 0.5rem;
}

.contact-info-content p {
    margin-bottom: 0;
    color: var(--gray-600);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 3rem 1.5rem 1.5rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

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

.footer-logo img {
    height: 50px;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: var(--gray-300);
    transition: color var(--transition-base);
}

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

.social-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    color: var(--gray-300);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-800);
    text-align: center;
}

/* ===== WHATSAPP FLOATING BUTTON ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    z-index: 999;
    transition: all var(--transition-base);
    animation: pulse 2s infinite;
}

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

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (min-width: 768px) {
    .header-container {
        padding: 1rem 2rem;
    }
    
    .nav-menu {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: none;
    }
    
    .contact-wrapper {
        grid-template-columns: 2fr 1fr;
    }
    
    h1 { font-size: 3.5rem; }
    h2 { font-size: 2.5rem; }
}

@media (min-width: 1024px) {
    .section {
        padding: 6rem 2rem;
    }
    
    .hero {
        padding: 10rem 2rem 6rem;
    }
}

@media (min-width: 1440px) {
    .header-container,
    .container {
        padding-left: 3rem;
        padding-right: 3rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .whatsapp-float,
    .footer {
        display: none;
    }
}