/* ==============================================
   Global Styles & Variables
   ============================================== */

:root {
    /* Primary Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    
    /* Secondary Colors */
    --secondary-color: #f59e0b;
    --secondary-dark: #d97706;
    --secondary-light: #fbbf24;
    
    /* Neutral Colors */
    --dark: #1e293b;
    --dark-light: #334155;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f1f5f9;
    --white: #ffffff;
    
    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-secondary: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    
    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Typography */
    --font-primary: 'Heebo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

ul {
    list-style: none;
}

/* ==============================================
   Typography
   ============================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

/* ==============================================
   Buttons
   ============================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

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

/* ==============================================
   Header & Navigation
   ============================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-base);
}

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

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    gap: var(--spacing-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--dark);
    position: relative;
    padding: 0.5rem 0;
}

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

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

.nav-cta {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition-base);
}

/* ==============================================
   Hero Section
   ============================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?w=1920&h=1080&fit=crop&q=80');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.85) 0%, rgba(37, 99, 235, 0.75) 100%);
    backdrop-filter: blur(2px);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--white);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-title-small {
    display: block;
    font-size: clamp(1rem, 3vw, 1.5rem);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xs);
}

.hero-title-accent {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
    color: var(--white);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    color: #fbbf24;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

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

.stat-number {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ==============================================
   Section Styles
   ============================================== */

section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.section-subtitle {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--gray);
}

/* ==============================================
   Services Section
   ============================================== */

.services {
    background: linear-gradient(180deg, var(--white) 0%, var(--light) 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    position: relative;
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.service-card.featured {
    background: var(--gradient-primary);
    color: var(--white);
}

.service-card.featured .service-title,
.service-card.featured .service-description,
.service-card.featured .service-list li {
    color: var(--white);
}

.service-card.featured .service-icon {
    color: var(--white);
}

.featured-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--gradient-secondary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.service-card.featured .service-icon {
    background: rgba(255, 255, 255, 0.2);
}

.service-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

.service-list {
    margin-bottom: var(--spacing-md);
}

.service-list li {
    padding: 0.5rem 0;
    padding-right: 1.5rem;
    position: relative;
    color: var(--dark-light);
}

.service-list li::before {
    content: '✓';
    position: absolute;
    right: 0;
    color: var(--primary-color);
    font-weight: 700;
}

.service-card.featured .service-list li::before {
    color: var(--white);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition-base);
}

.service-card.featured .service-link {
    color: var(--white);
}

.service-link:hover {
    gap: var(--spacing-sm);
}

/* ==============================================
   Projects Section
   ============================================== */

.projects-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--white);
    border: 2px solid var(--light);
    border-radius: var(--radius-lg);
    font-weight: 600;
    color: var(--gray);
    cursor: pointer;
    transition: var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: transparent;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    opacity: 1;
}

.project-card.hidden {
    display: none;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.project-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: var(--light);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.project-content {
    padding: var(--spacing-lg);
}

.project-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.project-description {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

.project-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--light);
    color: var(--primary-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

/* ==============================================
   Testimonials Section
   ============================================== */

.testimonials {
    background: linear-gradient(180deg, var(--white) 0%, var(--light) 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

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

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.testimonial-rating {
    display: flex;
    gap: 0.25rem;
    color: #fbbf24;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: var(--font-size-lg);
    color: var(--dark-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
}

.author-name {
    font-weight: 700;
    color: var(--dark);
}

.author-location {
    font-size: var(--font-size-sm);
    color: var(--gray);
}

/* ==============================================
   About Section
   ============================================== */

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.about-feature {
    display: flex;
    gap: var(--spacing-md);
}

.feature-icon-wrapper {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.feature-content h3 {
    font-size: var(--font-size-lg);
    margin-bottom: 0.25rem;
}

.feature-content p {
    color: var(--gray);
}

.about-description {
    font-size: var(--font-size-lg);
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.image-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.image-placeholder-large {
    width: 100%;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.image-badge {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    text-align: center;
}

.badge-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.badge-text {
    font-size: var(--font-size-sm);
    color: var(--gray);
    font-weight: 600;
}

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

.contact {
    background: linear-gradient(180deg, var(--white) 0%, var(--light) 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-2xl);
}

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

.contact-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: var(--font-size-lg);
    margin-bottom: 0.5rem;
}

.contact-details a {
    color: var(--primary-color);
    font-weight: 600;
    display: block;
    margin-bottom: 0.25rem;
}

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

.contact-details p {
    color: var(--gray);
    font-size: var(--font-size-sm);
}

/* Contact CTA Box */
.contact-cta-box {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.contact-cta-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--dark);
}

.contact-cta-text {
    font-size: var(--font-size-lg);
    color: var(--gray);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.contact-cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: var(--font-size-lg);
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.btn-whatsapp:hover {
    background: #22c55e;
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.contact-cta-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--light);
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    justify-content: center;
    color: var(--dark-light);
}

.cta-feature svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

/* ==============================================
   Footer
   ============================================== */

.footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--gray-light);
    line-height: 1.8;
}

.footer-section h3 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.footer-links,
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.footer-links a:hover {
    color: var(--white);
    padding-right: var(--spacing-xs);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-light);
}

.footer-contact svg {
    color: var(--primary-light);
}

.footer-contact a {
    color: var(--gray-light);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom-content {
    flex: 1;
}

.footer-bottom p {
    color: var(--gray-light);
    margin-bottom: 0.5rem;
}

.footer-disclaimer {
    font-size: var(--font-size-xs);
    color: var(--gray-light);
    opacity: 0.8;
    font-style: italic;
    margin-top: 0.5rem;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

/* ==============================================
   Blog Page Styles
   ============================================== */

.blog-hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    text-align: center;
    color: var(--white);
}

.blog-hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.blog-hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
}

.blog-categories {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.category-btn {
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.category-btn:hover,
.category-btn.active {
    background: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
    transform: translateY(-2px);
}

.blog-section {
    padding: 5rem 0;
    background: var(--light);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    opacity: 1;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.blog-card-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: var(--light);
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.1);
}

.blog-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-lg);
}

.blog-card-content {
    padding: var(--spacing-xl);
}

.blog-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--gray);
}

.blog-date,
.blog-read-time {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.blog-card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
    line-height: 1.4;
}

.blog-card-excerpt {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.blog-tags {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.blog-tag {
    padding: 0.25rem 0.75rem;
    background: var(--light);
    color: var(--primary-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.blog-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: 700;
    transition: gap var(--transition-base);
}

.blog-read-more:hover {
    gap: 1rem;
}

.blog-cta {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    text-align: center;
    margin-top: 4rem;
    box-shadow: var(--shadow-lg);
}

.blog-cta h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    color: var(--dark);
}

.blog-cta p {
    font-size: var(--font-size-lg);
    color: var(--gray);
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Blog Responsive */
@media (max-width: 768px) {
    .blog-hero {
        padding: 120px 0 60px;
    }
    
    .blog-hero-title {
        font-size: 2rem;
    }
    
    .blog-hero-subtitle {
        font-size: 1rem;
    }
    
    .blog-categories {
        gap: 0.5rem;
    }
    
    .category-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .blog-card-content {
        padding: var(--spacing-lg);
    }
    
    .blog-cta {
        padding: var(--spacing-xl);
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .blog-hero {
        padding: 100px 0 50px;
    }
    
    .blog-hero-title {
        font-size: 1.75rem;
    }
    
    .blog-hero-subtitle {
        font-size: 0.9375rem;
    }
    
    .category-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
    }
    
    .blog-card-image {
        height: 200px;
    }
    
    .blog-card-title {
        font-size: 1.125rem;
    }
    
    .blog-card-excerpt {
        font-size: 0.9375rem;
    }
}

/* ==============================================
   FAQ Section
   ============================================== */

.faq {
    background: linear-gradient(180deg, var(--white) 0%, var(--light) 100%);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: none;
    border: none;
    text-align: right;
    cursor: pointer;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--dark);
    transition: var(--transition-base);
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-icon {
    flex-shrink: 0;
    transition: transform var(--transition-base);
    color: var(--primary-color);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--gray);
    font-size: var(--font-size-base);
    line-height: 1.8;
}

.faq-answer a {
    color: var(--primary-color);
    font-weight: 600;
}

.faq-answer a:hover {
    text-decoration: underline;
}

/* ==============================================
   Back to Top Button
   ============================================== */

.back-to-top {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-2xl);
}

/* ==============================================
   WhatsApp Floating Button
   ============================================== */

.whatsapp-float {
    position: fixed;
    bottom: 90px;
    left: 2rem;
    width: 65px;
    height: 65px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5);
    z-index: 999;
    transition: all 0.3s ease;
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.7);
    animation: none;
}

@keyframes pulse-whatsapp {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5);
    }
    50% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.8), 0 0 0 10px rgba(37, 211, 102, 0.2);
    }
}

/* ==============================================
   Responsive Design
   ============================================== */

@media (max-width: 1024px) {
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.125rem;
    }
    
    .hero-bg {
        background-image: url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?w=800&h=1200&fit=crop&q=80');
        background-position: center center;
    }
    
    .nav {
        padding: 1rem;
    }
    
    .nav-logo {
        font-size: 1.125rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-xl);
        transition: var(--transition-base);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .nav-cta {
        display: block;
        margin-right: auto;
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }
    
    .hero {
        padding: 5rem 0 3rem;
        min-height: auto;
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-features {
        font-size: 0.875rem;
        gap: 1rem;
    }
    
    .hero-buttons .btn {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding-top: var(--spacing-lg);
        margin-top: var(--spacing-lg);
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .services-grid,
    .projects-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .service-card,
    .project-card,
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .service-title,
    .project-title {
        font-size: 1.25rem;
    }
    
    .contact-cta-title {
        font-size: 1.75rem;
    }
    
    .contact-cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .contact-cta-buttons .btn-large {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
    
    .contact-cta-features {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .cta-feature {
        font-size: 0.875rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-section h3 {
        font-size: 1.125rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .footer-bottom-content {
        text-align: center;
    }
    
    .footer-disclaimer {
        font-size: 0.75rem;
        line-height: 1.4;
    }
    
    .whatsapp-float {
        bottom: 70px;
        left: 1rem;
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    section {
        padding: 2.5rem 0;
    }
    
    .nav {
        padding: 0.75rem 1rem;
    }
    
    .nav-logo {
        font-size: 1rem;
    }
    
    .logo-icon {
        width: 32px;
        height: 32px;
    }
    
    .hero {
        padding: 4.5rem 0 2.5rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
        line-height: 1.2;
    }
    
    .hero-title-small {
        font-size: 0.875rem;
    }
    
    .hero-subtitle {
        font-size: 0.875rem;
        line-height: 1.5;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: 0.75rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
        padding: 0.875rem 1.25rem;
        font-size: 0.9375rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
    }
    
    .hero-feature {
        font-size: 0.875rem;
    }
    
    .hero-stats {
        gap: 1.5rem;
        margin-top: 2rem;
        padding-top: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 0.8125rem;
    }
    
    .scroll-indicator {
        font-size: 0.75rem;
        bottom: 1rem;
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .section-subtitle {
        font-size: 0.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 0.75rem;
    }
    
    .section-description {
        font-size: 0.9375rem;
    }
    
    .services-grid,
    .projects-grid,
    .testimonials-grid {
        gap: 1.25rem;
    }
    
    .service-card,
    .contact-card,
    .contact-cta-box,
    .testimonial-card {
        padding: 1.25rem;
    }
    
    .service-icon {
        width: 48px;
        height: 48px;
    }
    
    .service-icon svg {
        width: 32px;
        height: 32px;
    }
    
    .service-title,
    .project-title {
        font-size: 1.125rem;
    }
    
    .service-description,
    .project-description {
        font-size: 0.875rem;
    }
    
    .service-list li,
    .about-feature p {
        font-size: 0.875rem;
    }
    
    .projects-filter {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    .project-image {
        height: 200px;
    }
    
    .testimonial-text {
        font-size: 0.9375rem;
    }
    
    .about-content {
        gap: 2rem;
    }
    
    .about-features {
        gap: 1.25rem;
    }
    
    .feature-icon-wrapper {
        width: 40px;
        height: 40px;
    }
    
    .feature-icon-wrapper svg {
        width: 20px;
        height: 20px;
    }
    
    .feature-content h3 {
        font-size: 1rem;
    }
    
    .feature-content p {
        font-size: 0.875rem;
    }
    
    .image-placeholder-large {
        height: 300px;
    }
    
    .image-badge {
        padding: 1rem;
        bottom: 1rem;
        right: 1rem;
    }
    
    .badge-number {
        font-size: 2rem;
    }
    
    .contact-content {
        gap: 1.5rem;
    }
    
    .contact-card {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
    }
    
    .contact-details h3 {
        font-size: 1rem;
    }
    
    .contact-details a,
    .contact-details p {
        font-size: 0.875rem;
    }
    
    .contact-cta-title {
        font-size: 1.5rem;
    }
    
    .contact-cta-text {
        font-size: 0.9375rem;
    }
    
    .contact-cta-buttons .btn-large {
        width: 100%;
        justify-content: center;
        padding: 1rem 1.5rem;
        font-size: 0.9375rem;
    }
    
    .contact-cta-features {
        padding-top: 1rem;
    }
    
    .cta-feature {
        font-size: 0.8125rem;
    }
    
    .footer {
        padding: 2rem 0 1rem;
    }
    
    .footer-content {
        gap: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .footer-logo {
        font-size: 1.125rem;
    }
    
    .footer-section h3 {
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }
    
    .footer-links,
    .footer-contact {
        font-size: 0.875rem;
        gap: 0.5rem;
    }
    
    .footer-bottom {
        padding-top: 1rem;
        gap: 1rem;
    }
    
    .footer-bottom p {
        font-size: 0.8125rem;
    }
    
    .footer-disclaimer {
        font-size: 0.6875rem;
        line-height: 1.3;
        margin-top: 0.5rem;
    }
    
    .footer-social a {
        width: 36px;
        height: 36px;
    }
    
    .footer-social svg {
        width: 16px;
        height: 16px;
    }
    
    .back-to-top {
        bottom: 0.875rem;
        left: 0.875rem;
        width: 44px;
        height: 44px;
    }
    
    .back-to-top svg {
        width: 20px;
        height: 20px;
    }
    
    .whatsapp-float {
        bottom: 55px;
        left: 0.875rem;
        width: 54px;
        height: 54px;
    }
    
    .whatsapp-float svg {
        width: 28px;
        height: 28px;
    }
}

/* ==============================================
   Animations
   ============================================== */

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

.slide-in-right {
    animation: slideInRight 0.8s ease forwards;
}

/* ==============================================
   Utility Classes
   ============================================== */

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

.text-right {
    text-align: right;
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

/* ==============================================
   Breadcrumbs Navigation
   ============================================== */

.breadcrumbs {
    background: var(--light);
    padding: 1rem 0;
    margin-top: 80px;
    border-bottom: 1px solid #e0e0e0;
}

.breadcrumbs .container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    font-size: 0.95rem;
}

.breadcrumb-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.breadcrumb-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.breadcrumb-separator {
    color: var(--gray);
    font-weight: 300;
    margin: 0 0.25rem;
}

.breadcrumb-current {
    color: var(--dark);
    font-weight: 600;
}

/* ==============================================
   Back to Blog Button
   ============================================== */

.back-to-blog {
    background: linear-gradient(to bottom, #f8f9fa, #ffffff);
    padding: 3rem 0;
    text-align: center;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-back:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-back svg {
    transition: transform 0.3s ease;
}

.btn-back:hover svg {
    transform: translateX(-5px);
}

/* Mobile Responsiveness for Breadcrumbs & Back Button */
@media (max-width: 768px) {
    .breadcrumbs {
        padding: 0.75rem 0;
        font-size: 0.85rem;
    }
    
    .breadcrumb-current {
        max-width: 200px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .back-to-blog {
        padding: 2rem 0;
    }
    
    .btn-back {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
}