/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

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

/* ============================================
   DESIGN SYSTEM - CSS VARIABLES
   ============================================ */

:root {
    /* Colors - Premium Blue Theme */
    --primary-blue: #2563EB;
    --primary-blue-dark: #1E40AF;
    --primary-blue-light: #60A5FA;
    --secondary-black: #0A0A0A;
    --bg-white: #FFFFFF;
    --bg-light-gray: #F9FAFB;
    --bg-blue-subtle: #EFF6FF;
    --text-dark: #1F1F1F;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    --footer-dark: #111827;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --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);

    /* Typography */
    --font-primary: 'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-h1: clamp(2.5rem, 5vw, 4rem);
    --font-size-h2: clamp(2rem, 4vw, 3rem);
    --font-size-h3: clamp(1.5rem, 3vw, 2rem);
    --font-size-h4: 1.25rem;
    --font-size-body: 1rem;
    --font-size-small: 0.875rem;
    --line-height: 1.6;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 8rem;

    /* Layout */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;

    /* Z-index layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-tooltip: 1070;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--text-dark);
}

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

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

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

h4 {
    font-size: var(--font-size-h4);
}

p {
    margin-bottom: 1rem;
}

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

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

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-blue-light));
    border-radius: 2px;
}

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

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    text-align: center;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-blue-dark), var(--primary-blue));
}

.btn-primary:active {
    transform: translateY(0);
}

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

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

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

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

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
    display: block;
}

/* ============================================
   TOP BAR
   ============================================ */

.top-bar {
    background-color: var(--footer-dark);
    color: white;
    padding: 0.75rem 0;
    font-size: var(--font-size-small);
}

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

.contact-info {
    display: flex;
    gap: 2rem;
}

.top-bar-link {
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.9;
}

.top-bar-link:hover {
    opacity: 1;
    color: var(--primary-blue-light);
}

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

.social-link {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    border-radius: 50%;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary-blue);
    transform: translateY(-2px);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: var(--transition);
}

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

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-dark);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-dark);
    font-weight: var(--font-weight-medium);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--primary-blue);
    transition: var(--transition);
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    color: white;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(34, 34, 34, 0.8), rgba(34, 34, 34, 0.6));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    animation: fadeInUp 1s ease;
}

.hero-title {
    margin-bottom: 1.5rem;
    text-shadow: 3px 3px 8px rgba(0, 0, 0, 0.8), 1px 1px 3px rgba(0, 0, 0, 0.9);
    font-weight: var(--font-weight-bold);
    color: #FFFFFF;
}

.hero-title .highlight {
    color: var(--primary-blue-light);
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.9), 0 0 20px rgba(37, 99, 235, 0.5);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    line-height: 1.8;
    color: #FFFFFF;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.9), 1px 1px 3px rgba(0, 0, 0, 0.8);
    font-weight: var(--font-weight-medium);
}

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

.hero-features {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.875rem 1.25rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-badge i {
    color: var(--primary-blue-light);
    font-size: 1.25rem;
}

/* ============================================
   SERVICES SECTION
   ============================================ */

.services {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.service-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.service-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-md);
}

.service-content {
    padding: 2rem;
}

.service-title {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-description {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--text-gray);
}

.service-features i {
    color: var(--primary-blue);
}

.service-cta {
    width: 100%;
}

/* ============================================
   WHY CHOOSE US SECTION
   ============================================ */

.why-us {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light-gray);
}

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

.benefit-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-blue-light), var(--primary-blue));
    color: white;
    border-radius: 50%;
    font-size: 2rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.benefit-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.benefit-card p {
    color: var(--text-gray);
    margin: 0;
}

/* Stats Section */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-gray);
    font-size: 1rem;
}

/* ============================================
   GALLERY SECTION - MASONRY LAYOUT
   ============================================ */

.gallery {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light-gray);
}

.masonry-gallery {
    columns: 4;
    column-gap: 1.5rem;
    margin: 0 auto;
}

.gallery-item {
    break-inside: avoid;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    background: white;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.6) 100%);
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
    pointer-events: none;
}

.gallery-item:hover::before {
    opacity: 1;
}

.gallery-item::after {
    font-family: 'Font Awesome 6 Free';
    content: '\f002';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    font-size: 3rem;
    color: white;
    z-index: 2;
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.gallery-item:hover::after {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--text-dark), #333);
    color: white;
    text-align: center;
}

.cta-title {
    color: white;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

/* ============================================
   FOOTER
   ============================================ */

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

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-heading {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    color: var(--primary-blue-light);
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

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

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

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
}

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

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact i {
    color: var(--primary-blue-light);
    margin-top: 0.25rem;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   FLOATING BUTTONS
   ============================================ */

.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-fixed);
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 110px;
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-fixed);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@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);
    }
}

[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

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

@media (max-width: 1024px) {
    .nav-menu {
        gap: 1.5rem;
    }

    .masonry-gallery {
        columns: 3;
    }

    .gallery-item {
        min-width: calc(50% - 0.5rem);
    }
}

@media (max-width: 768px) {
    .top-bar-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .contact-info {
        flex-direction: column;
        gap: 0.5rem;
    }

    .nav-menu {
        position: fixed;
        top: 73px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 73px);
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        align-items: flex-start;
    }

    .nav-menu.active {
        left: 0;
    }

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

    .navbar .btn-primary {
        display: none;
    }

    .hero {
        min-height: 70vh;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

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

    .masonry-gallery {
        columns: 2;
    }

    .gallery-item {
        min-width: 100%;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
    }

    .carousel-btn.prev {
        left: 10px;
    }

    .carousel-btn.next {
        right: 10px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }

    .back-to-top {
        bottom: 85px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }

    .btn-large {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }

    .stats-section {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .masonry-gallery {
        columns: 1;
    }
}