/* ===== CSS Variables ===== */
:root {
    /* Brand Colors from PDF */
    --color-primary-dark: #1a3a4a;
    --color-primary: #1e4459;
    --color-primary-light: #2a5a73;
    --color-gold: #c9a227;
    --color-gold-light: #d4b84a;
    --color-cyan: #4ecdc4;
    --color-blue: #44a8b3;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Typography */
    --font-display: 'Caveat', cursive;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ===== Utility Classes ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-4xl) 0;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gold);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-body);
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-gray-500);
    max-width: 600px;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header .section-description {
    margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-blue) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-full {
    width: 100%;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

.logo-img {
    height: 50px;
    width: auto;
}

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

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-white);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gold);
    transition: width var(--transition-base);
}

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

.nav-cta {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-blue) 100%);
    border-radius: var(--radius-md);
}

.nav-cta::after {
    display: none;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-base);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
}

.hero-background::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('images/hero-bg.jpg') center/cover no-repeat;
    opacity: 0.15;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--spacing-xl);
}

.hero-logo img {
    max-width: 600px;
    width: 90%;
    margin: 0 auto var(--spacing-xl);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    color: var(--color-gray-200);
    margin-bottom: var(--spacing-2xl);
    letter-spacing: 0.05em;
}

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

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-white);
    opacity: 0.7;
    animation: bounce 2s infinite;
}

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

/* ===== About Section ===== */
.about {
    background: var(--color-gray-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.about-image-accent {
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    border: 3px solid var(--color-gold);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.about-text {
    font-size: 1.0625rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-gray-600);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-blue) 100%);
    border-radius: var(--radius-full);
    color: var(--color-white);
    flex-shrink: 0;
}

.feature-icon svg {
    width: 16px;
    height: 16px;
}

.feature span {
    font-weight: 500;
    color: var(--color-gray-700);
}

/* ===== Services Section ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--color-white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-100);
}

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

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    border-radius: var(--radius-lg);
    color: var(--color-gold);
    margin-bottom: var(--spacing-lg);
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--color-gray-500);
}

/* ===== Portfolio Section ===== */
.portfolio {
    background: var(--color-gray-50);
}

.portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-gray-600);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 1;
    min-height: 250px;
    cursor: pointer;
    opacity: 1 !important;
    visibility: visible !important;
    background: var(--color-gray-200);
}

.portfolio-item.large {
    grid-column: span 2;
    grid-row: span 2;
}

.portfolio-item img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    opacity: 1 !important;
    visibility: visible !important;
}

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

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26, 58, 74, 0.95) 0%, rgba(26, 58, 74, 0) 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-lg);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.portfolio-overlay p {
    font-size: 0.875rem;
    color: var(--color-gray-300);
}

.portfolio-item.hidden {
    display: none;
}

/* ===== Testimonials Section ===== */
.testimonials {
    background: var(--color-primary-dark);
    color: var(--color-white);
}

.testimonials .section-label {
    color: var(--color-gold);
}

.testimonials .section-title {
    color: var(--color-white);
}

.testimonials-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    transition: transform var(--transition-slow);
}

.testimonial-card {
    min-width: 100%;
    padding: 0 var(--spacing-xl);
}

.testimonial-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
}

.quote-icon {
    color: var(--color-gold);
    opacity: 0.5;
    margin-bottom: var(--spacing-lg);
}

.testimonial-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

.testimonial-author strong {
    display: block;
    font-size: 1rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.testimonial-author span {
    font-size: 0.875rem;
    color: var(--color-gray-400);
}

.testimonial-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.testimonial-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--color-white);
    transition: all var(--transition-fast);
}

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

.testimonial-dots {
    display: flex;
    gap: var(--spacing-sm);
}

.testimonial-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.testimonial-dots .dot.active {
    background: var(--color-gold);
    width: 30px;
}

/* ===== Contact Section ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
}

.contact-info p {
    font-size: 1.0625rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-xs);
}

.contact-item a,
.contact-item span {
    font-size: 1rem;
    color: var(--color-gray-800);
}

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

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-primary-dark);
    border-radius: var(--radius-md);
    color: var(--color-white);
    transition: all var(--transition-fast);
}

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

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

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-md);
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-cyan);
    box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    grid-column: span 2;
    margin-top: var(--spacing-md);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-xl);
}

.footer-logo img {
    height: 60px;
    margin: 0 auto var(--spacing-sm);
}

.footer-logo p {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--color-gray-500);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
}

.footer-links a {
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-800);
    width: 100%;
}

.footer-bottom p {
    font-size: 0.875rem;
}

/* ===== Responsive Styles ===== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .about-image {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }

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

    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-primary-dark);
        flex-direction: column;
        justify-content: center;
        gap: var(--spacing-xl);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
    }

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

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }

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

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

    .portfolio-item.large {
        grid-column: span 2;
        grid-row: span 1;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .contact-form {
        grid-template-columns: 1fr;
    }

    .form-group.full-width,
    .contact-form .btn {
        grid-column: span 1;
    }

    .section {
        padding: var(--spacing-3xl) 0;
    }
}

@media (max-width: 480px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-item.large {
        grid-column: span 1;
    }

    .portfolio-filters {
        gap: var(--spacing-xs);
    }

    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.8125rem;
    }

    .testimonial-card {
        padding: 0 var(--spacing-sm);
    }

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

    .contact-form-wrapper {
        padding: var(--spacing-lg);
    }
}

/* ===== Animation Classes ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* ===== Placeholder Styles for Demo Images ===== */
.portfolio-item img,
.about-image img {
    background: linear-gradient(135deg, var(--color-gray-200) 0%, var(--color-gray-300) 100%);
    min-height: 200px;
}

.hero-logo img {
    /* Placeholder for logo */
    min-height: 150px;
}