/* ===================================
   CSS Variables - Blue Color Palette
   =================================== */
:root {
    /* Primary Blues */
    --blue-50: #e6f2ff;
    --blue-100: #b3d9ff;
    --blue-200: #80c0ff;
    --blue-300: #4da6ff;
    --blue-400: #1a8cff;
    --blue-500: #0073e6;
    --blue-600: #005bb3;
    --blue-700: #004280;
    --blue-800: #002a4d;
    --blue-900: #00111a;
    
    /* Accent Colors */
    --accent-cyan: #00d4ff;
    --accent-purple: #6366f1;
    --accent-pink: #ec4899;
    
    /* Neutrals */
    --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;
    --black: #000000;
    
    /* Fonts */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 120px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===================================
   Global Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

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

.gradient-text {
    background: linear-gradient(135deg, var(--blue-500), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition-normal);
    overflow: visible;
    height: 80px;
    border-radius: 0 0 30px 30px;
}

.navbar.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--blue-600);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    margin: 0;
    margin-left: -80px;
    height: 100%;
}

.logo-img {
    height: 300px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-normal);
}

.nav-logo:hover .logo-img {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue-500);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--blue-600);
}

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: var(--transition-normal);
}

.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);
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    min-height: 200vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 0;
}

/* About and Services Hero - Normal Height */
.about-hero,
.services-hero {
    min-height: 70vh !important;
    max-height: 70vh !important;
    padding-top: 8rem !important;
    padding-bottom: 4rem !important;
    align-items: flex-start !important;
}

.about-hero .hero-content,
.services-hero .hero-content {
    padding: 2rem !important;
    height: auto !important;
    min-height: auto !important;
    justify-content: flex-start !important;
}

.about-hero .hero-zoom-container,
.services-hero .hero-zoom-container {
    position: relative !important;
    height: auto !important;
}

.about-hero .hero-title,
.services-hero .hero-title {
    font-size: 2.5rem !important;
}

.hero-background {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, var(--blue-50) 0%, var(--white) 50%, var(--blue-100) 100%);
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 115, 230, 0.1) 0%, transparent 50%);
}

.hero-zoom-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    gap: 1.25rem;
    max-width: var(--container-width);
    padding: 10rem 2rem 3rem 2rem;
    width: 100%;
    min-height: 100vh;
}

.hero-text-center {
    max-width: 900px;
    width: 100%;
    z-index: 10;
    position: relative;
}

.hero-subtitle {
    display: inline-block;
    color: var(--blue-600);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 2.75rem;
    margin-bottom: 0.75rem;
    line-height: 1.2;
    font-weight: 800;
}

.hero-description {
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 1rem;
    line-height: 1.6;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    z-index: 10;
    position: relative;
    margin-bottom: 1.5rem;
}

.hero-visual-center {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0;
}

.floating-logo {
    max-width: 320px;
    width: 50%;
    height: auto;
    display: block;
    filter: drop-shadow(0 20px 40px rgba(0, 115, 230, 0.3));
    transform-origin: center center;
    z-index: 5;
    position: relative;
}

.scroll-indicator {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--gray-500);
    font-size: 0.8rem;
    font-weight: 500;
    z-index: 15;
    pointer-events: none;
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--blue-500), transparent);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0%, 100% {
        opacity: 0;
        transform: translateY(-10px);
    }
    50% {
        opacity: 1;
        transform: translateY(10px);
    }
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
    color: var(--white);
    box-shadow: 0 10px 30px rgba(0, 115, 230, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 115, 230, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--blue-600);
    border: 2px solid var(--blue-500);
}

.btn-secondary:hover {
    background: var(--blue-500);
    color: var(--white);
    transform: translateY(-3px);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

/* ===================================
   Section Styles
   =================================== */
.section-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--section-padding) 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-subtitle {
    display: inline-block;
    color: var(--blue-600);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.section-description {
    font-size: 1.2rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

.section-cta {
    text-align: center;
    margin-top: 4rem;
}

/* ===================================
   About/Services Section
   =================================== */
.about-section {
    background: var(--gray-50);
    position: relative;
    z-index: 10;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

.service-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid var(--gray-200);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    border-color: var(--blue-300);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--blue-100), var(--blue-200));
    border-radius: 20px;
    font-size: 2rem;
    color: var(--blue-600);
}

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

.service-description {
    color: var(--gray-600);
    line-height: 1.8;
}

/* ===================================
   Projects Section
   =================================== */
.projects-section {
    position: relative;
    z-index: 10;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-normal);
    border: 1px solid var(--gray-200);
}

a.project-card {
    display: block;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

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

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

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

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--gray-300);
    background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 115, 230, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    width: 60px;
    height: 60px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-600);
    font-size: 1.5rem;
    text-decoration: none;
    transition: var(--transition-fast);
}

.project-link:hover {
    transform: scale(1.1);
}

.project-content {
    padding: 2rem;
}

.project-category {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--blue-100);
    color: var(--blue-700);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--gray-900);
}

.project-description {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===================================
   Clients Section
   =================================== */
.clients-section {
    background: var(--gray-50);
    position: relative;
    z-index: 10;
}

.clients-slider {
    overflow: hidden;
    padding: 2.5rem 0;
    position: relative;
}

/* Gradient fade masks on left and right edges */
.clients-slider::before,
.clients-slider::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 180px;
    z-index: 2;
    pointer-events: none;
}

.clients-slider::before {
    left: 0;
    background: linear-gradient(to right, var(--gray-50) 0%, transparent 100%);
}

.clients-slider::after {
    right: 0;
    background: linear-gradient(to left, var(--gray-50) 0%, transparent 100%);
}

.clients-track {
    display: flex;
    gap: 3rem;
    animation: scroll 35s linear infinite;
    width: max-content;
    align-items: center;
}

.clients-track:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.client-logo {
    flex-shrink: 0;
    width: 160px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
    cursor: default;
}

.client-logo:hover {
    transform: translateY(-4px) scale(1.05);
}

.client-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0.9;
    transition: var(--transition-normal);
}

.client-logo:hover img {
    opacity: 1;
}

.client-name {
    font-weight: 600;
    color: var(--gray-600);
    font-size: 1.05rem;
    text-align: center;
}

/* ===================================
   CTA Section
   =================================== */
.cta-section {
    position: relative;
    z-index: 10;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 4rem 2rem;
}

.cta-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--blue-700), var(--blue-900));
    z-index: -1;
}

.cta-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 50%, rgba(0, 212, 255, 0.2) 0%, transparent 50%);
}

.cta-content {
    text-align: center;
    max-width: 800px;
    color: var(--white);
    position: relative;
    z-index: 10;
}

.cta-subtitle {
    display: inline-block;
    color: var(--accent-cyan);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
}

.cta-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.cta-description {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 10;
}

.cta-buttons .btn {
    position: relative;
    z-index: 10;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 4rem 2rem 0;
    position: relative;
    z-index: 10;
}

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

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

.footer-logo {
    margin-bottom: 0.4rem;
}

.footer-logo-img {
    height: 240px;
    width: auto;
    margin-top: -110px;
    margin-left: -45px;
    object-fit: contain;
    display: block;
}

.footer-text {
    color: var(--gray-400);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    margin-top: -90px;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-300);
    text-decoration: none;
    transition: var(--transition-normal);
}

.social-link:hover {
    background: var(--blue-600);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-title {
    font-size: 1.2rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

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

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

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

.footer-links a:hover {
    color: var(--blue-400);
}

.footer-links i {
    margin-right: 0.5rem;
    color: var(--blue-500);
}

.footer-bottom {
    padding-top: 2rem;
    padding-bottom: 1rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--gray-400);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin: 0;
    opacity: 0.8;
}

/* ===================================
   Empty State
   =================================== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--gray-500);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    color: var(--gray-300);
}

.empty-state p {
    font-size: 1.2rem;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .floating-logo {
        max-width: 350px;
        width: 55%;
    }
}

@media (max-width: 968px) {
    .hero-section {
        min-height: 150vh;
    }
    
    .hero-content {
        gap: 1rem;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
        letter-spacing: 2px;
    }
    
    .hero-title {
        font-size: 2.25rem;
        margin-bottom: 0.75rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }
    
    .hero-cta {
        gap: 0.75rem;
        margin-bottom: 1rem;
    }
    
    .floating-logo {
        max-width: 280px;
        width: 50%;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .cta-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        height: calc(100vh - 80px);
        min-height: 100%;
        background-color: #ffffff !important;
        background: #ffffff !important;
        backdrop-filter: blur(10px);
        display: flex !important;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 2rem 2rem;
        padding-top: 3rem;
        gap: 1.5rem;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 999;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.15);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-link {
        font-size: 1.2rem;
        width: 100%;
        text-align: center;
        padding: 1rem 2rem;
        display: block !important;
        color: var(--gray-700) !important;
        opacity: 1 !important;
        visibility: visible !important;
        font-weight: 600;
        transition: all 0.3s ease;
    }
    
    .nav-link:hover {
        color: var(--blue-500) !important;
    }
    
    .nav-link::after {
        display: none !important;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
}

@media (max-width: 640px) {
    :root {
        --section-padding: 80px;
    }
    
    .hero-section {
        min-height: 120vh;
    }
    
    .hero-content {
        gap: 0.75rem;
    }
    
    .hero-subtitle {
        font-size: 0.65rem;
        letter-spacing: 1.5px;
        margin-bottom: 0.5rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .hero-description {
        font-size: 0.85rem;
        margin-bottom: 1rem;
        line-height: 1.5;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
        margin-bottom: 0.75rem;
        align-items: center;
    }
    
    .hero-cta .btn {
        width: 90%;
        max-width: 280px;
        padding: 0.875rem 1.75rem;
        font-size: 0.95rem;
    }
    
    .nav-link {
        font-size: 1.1rem;
    }
    
    .floating-logo {
        max-width: 200px;
        width: 45%;
    }
    
    .scroll-indicator {
        bottom: 1.5rem;
        font-size: 0.7rem;
    }
    
    .scroll-line {
        height: 30px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 0.875rem 2rem;
        font-size: 0.95rem;
    }
}

/* ===================================
   Back to Top Button
   =================================== */
.back-to-top {
    display: none !important;
}

/* ===================================
   Animation Classes for GSAP
   =================================== */
/* Only hide elements if GSAP is loaded - handled by JS */
.gsap-loaded [data-scroll-animation] {
    opacity: 0;
}

.gsap-loaded .fade-up {
    transform: translateY(50px);
}

.gsap-loaded .fade-down {
    transform: translateY(-50px);
}

.gsap-loaded .fade-left {
    transform: translateX(50px);
}

.gsap-loaded .fade-right {
    transform: translateX(-50px);
}

.gsap-loaded .scale-up {
    transform: scale(0.8);
}