/* ===== CSS Variables ===== */
:root {
    --primary-dark: #1c75bc;
    --primary-light: #27aae1;
    --text-dark: #1a1a2e;
    --text-light: #ffffff;
    --text-muted: #6b7280;
    --bg-light: #f8fafc;
    --bg-dark: #0f172a;
    --gradient-primary: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --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);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --font-heading: 'Arial', sans-serif;
    --font-body: 'Arial', sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--text-light);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 50px;
    width: auto;
    transition: transform var(--transition-fast);
}

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

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-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: width var(--transition-normal);
}

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

.nav-link:hover {
    color: var(--primary-dark);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* ===== Hero Section ===== */
.hero {
    min-height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    position: relative;
    padding: 7rem 2rem 3rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    text-align: left;
    position: relative;
    z-index: 1;
}

.hero-image {
    flex-shrink: 0;
    width: 350px;
    height: 350px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    transform: translateX(30px);
    animation: fadeInRight 0.8s ease 0.4s forwards;
}

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

@keyframes fadeInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--text-light);
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
    font-weight: 500;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.85);
    max-width: 700px;
    margin: 0 0 2.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    background: var(--text-light);
    color: var(--primary-dark);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.6s forwards;
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: var(--text-light);
    color: var(--primary-light);
}

.hero-cta svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.hero-cta:hover svg {
    transform: translateX(5px);
}

/* ===== Sections Common ===== */
.section {
    padding: 6rem 2rem;
}

.section-dark {
    background: var(--bg-dark);
    color: var(--text-light);
}

.section-light {
    background: var(--bg-light);
}

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

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

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

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

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 1.5rem auto 0;
}

.section-dark .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

/* ===== Services Cards ===== */
.services-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.service-card {
    background: var(--text-light);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: 30px;
    height: 30px;
    color: var(--text-light);
}

.service-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-description {
    color: var(--text-muted);
    line-height: 1.7;
}

.service-list {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
}

.service-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-light);
    border-radius: 50%;
}

.service-link {
    display: inline-block;
    margin-top: 1.5rem;
    color: var(--primary-dark);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.service-link:hover {
    color: var(--primary-light);
    transform: translateX(5px);
}

/* ===== Bio Gallery ===== */
.bio-gallery {
    padding: 4rem 0;
    overflow: hidden;
}

.gallery-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    justify-items: center;
    max-width: 600px;
    margin: 0 auto;
}

.gallery-item {
    width: 180px;
    height: 180px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    flex-shrink: 0;
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.gallery-item:hover::after {
    opacity: 0.2;
}

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

.gallery-item:hover img {
    transform: scale(1.1);
}

/* Gallery responsive - 2 columns for tablets */
@media (max-width: 768px) {
    .gallery-container {
        grid-template-columns: repeat(2, 1fr);
        max-width: 400px;
    }
    
    .gallery-item {
        width: 160px;
        height: 160px;
    }
}

/* Gallery responsive - horizontal scroll for mobile */
@media (max-width: 480px) {
    .bio-gallery {
        padding: 2rem 0;
    }
    
    .gallery-container {
        display: flex;
        grid-template-columns: none;
        gap: 1rem;
        max-width: none;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding: 1rem 2rem;
        margin: 0;
        scrollbar-width: none;
    }
    
    .gallery-container::-webkit-scrollbar {
        display: none;
    }
    
    .gallery-item {
        width: 200px;
        height: 200px;
        scroll-snap-align: center;
        flex-shrink: 0;
    }
    
    .gallery-item:hover {
        transform: none;
    }
}

/* ===== Partners Logos ===== */
.partners-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.partner-logo {
    background: white;
    padding: 1.5rem 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.partner-logo img {
    max-height: 60px;
    max-width: 150px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all var(--transition-normal);
}

.partner-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* ===== Quote Section ===== */
.quote-section {
    background: var(--gradient-primary);
    padding: 5rem 2rem;
    text-align: center;
}

.quote-text {
    font-size: clamp(1.3rem, 3vw, 2rem);
    color: var(--text-light);
    font-weight: 600;
    max-width: 900px;
    margin: 0 auto;
    font-style: italic;
    line-height: 1.6;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 4rem 2rem 0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
}

.footer-logo {
    height: 45px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.contact-list .icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--primary-light);
    margin-top: 2px;
}

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

.hours-list li {
    margin-bottom: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.hours-list span {
    color: var(--text-light);
    font-weight: 500;
}

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

.social-links a {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

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

.social-icon {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    text-align: center;
    padding: 1.5rem 0;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease;
}

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

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.6s ease;
}

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

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* Staggered animation delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ===== Mobile Responsive ===== */
@media (max-width: 992px) {
    .nav-list {
        gap: 1.5rem;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
}

@media (max-width: 1200px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background: var(--text-light);
        box-shadow: var(--shadow-xl);
        padding: 5rem 2rem 2rem;
        transition: right var(--transition-normal);
        z-index: 999;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-link {
        display: block;
        padding: 1rem 0;
        font-size: 1.1rem;
        border-bottom: 1px solid #e5e7eb;
    }
    
    .mobile-menu-toggle.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .mobile-menu-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .hero {
        padding: 7rem 1.5rem 3rem;
    }
    
    .hero-container {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-description {
        margin: 0 auto 2rem;
    }
    
    .hero-image {
        width: 250px;
        height: 250px;
        order: -1;
    }
    
    .section {
        padding: 4rem 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-item {
        width: 140px;
        height: 140px;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-section h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .contact-list li {
        justify-content: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0.75rem 1rem;
    }
    
    .logo img {
        height: 40px;
    }
    
    .hero-cta {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .gallery-item {
        width: 100px;
        height: 100px;
    }
}

/* ===== Skills Grid Responsive ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.skills-grid > div {
    min-width: 0;
}

.skills-grid ul {
    white-space: nowrap;
}

.skills-grid li {
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 1200px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 700px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid ul {
        white-space: normal;
    }
}

/* ===== Overlay for mobile menu ===== */
.menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 998;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}