/* ============================================
   CSS Variables for Theme Support
   ============================================ */
:root {
    /* Light Mode Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --border-color: #e5e7eb;
    --accent-color: #4f46e5;
    --accent-hover: #4338ca;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

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

    /* Typography */
    --font-family: 'Inter', -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: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* Dark Mode Colors */
.dark-mode {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-tertiary: #71717a;
    --border-color: #27272a;
    --accent-color: #6366f1;
    --accent-hover: #818cf8;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-base), color var(--transition-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
    .nav-container {
        height: 60px;
        padding: 0 var(--spacing-sm);
    }
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

@media (max-width: 768px) {
    .logo {
        font-size: var(--font-size-lg);
    }
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    list-style: none;
}

@media (min-width: 1024px) {
    .nav-menu {
        gap: var(--spacing-lg);
    }
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
}

.theme-icon {
    font-size: var(--font-size-lg);
    display: block;
}

.dark-mode .sun-icon,
.light-mode .moon-icon {
    display: none;
}

.dark-mode .moon-icon,
.light-mode .sun-icon {
    display: block;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    padding: 0;
    background: transparent;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

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

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
        z-index: 1001;
        position: relative;
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0;
        background-color: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
        opacity: 0;
        z-index: 999;
        will-change: max-height, opacity;
    }

    .nav-menu.active {
        max-height: 280px;
        opacity: 1;
        padding: var(--spacing-xs) 0;
    }

    .nav-menu li {
        width: 100%;
        padding: 0;
    }

    .nav-menu .nav-link {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
        width: 100%;
        font-size: var(--font-size-base);
        color: var(--text-primary);
        border-bottom: 1px solid var(--border-color);
        transition: background-color var(--transition-fast);
    }

    .nav-menu .nav-link:hover {
        background-color: var(--bg-secondary);
        color: var(--text-primary);
    }

    .nav-menu li:last-child .nav-link {
        border-bottom: none;
    }

    .nav-menu .theme-toggle {
        margin: var(--spacing-sm) var(--spacing-md);
        align-self: flex-start;
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding: calc(70px + var(--spacing-2xl)) 0 var(--spacing-2xl);
    background-color: var(--bg-primary);
}

@media (max-width: 768px) {
    .hero {
        padding: calc(60px + var(--spacing-xl)) 0 var(--spacing-xl);
    }
}

.hero-container {
    max-width: 800px;
    text-align: center;
}

.hero-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.hero-subtitle {
    display: block;
    font-size: clamp(var(--font-size-xl), 3vw, var(--font-size-2xl));
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.hero-description {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

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

@media (max-width: 768px) {
    .hero-title {
        margin-bottom: var(--spacing-sm);
    }

    .hero-description {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-lg);
        padding: 0 var(--spacing-sm);
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-sm);
        width: 100%;
    }

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--text-tertiary);
}

/* ============================================
   Section Styles
   ============================================ */
section {
    padding: var(--spacing-2xl) 0;
}

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

.section-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.section-description {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ============================================
   Projects Section
   ============================================ */
.projects {
    background-color: var(--bg-secondary);
}

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

.featured-projects-grid {
    max-width: 1200px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .featured-projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.project-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background-color: var(--bg-tertiary);
}

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

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

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.project-description {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

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

.tag {
    display: inline-block;
    padding: 4px var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
}

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

.project-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--accent-color);
    transition: color var(--transition-fast);
}

.project-link:hover {
    color: var(--accent-hover);
}

/* ============================================
   Client Work Section
   ============================================ */
.client-work {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.client-work-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .client-work-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
}

.client-project-card {
    display: flex;
    flex-direction: column;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.client-project-image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    background-color: var(--bg-tertiary);
    flex-shrink: 0;
}

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

.client-project-card:hover .client-project-image img {
    transform: scale(1.03);
}

.client-project-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.client-project-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.client-project-description {
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    flex-grow: 1;
}

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

.client-tag {
    display: inline-block;
    padding: 3px var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.client-project-links {
    margin-top: auto;
}

.client-project-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--accent-color);
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.client-project-link:hover {
    color: var(--accent-hover);
}

/* ============================================
   What Makes Me Special Section
   ============================================ */
.special {
    background-color: var(--bg-primary);
}

.special-content {
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
    text-align: center;
}

.journey-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-secondary);
    text-align: left;
}

.journey-link {
    color: var(--accent-color);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.journey-link:hover {
    color: var(--accent-hover);
}

.special-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .special-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .special-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.special-card {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.special-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.special-icon {
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.special-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.special-description {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-secondary);
    flex-grow: 1;
}

/* ============================================
   About Section
   ============================================ */
.about {
    background-color: var(--bg-secondary);
    padding: var(--spacing-2xl) 0;
}

.about-header {
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
}

.about-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
}

.about-main-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.about-main-description {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-secondary);
    margin-top: var(--spacing-md);
    max-width: 700px;
}

.about-expertise {
    max-width: 1200px;
    margin: var(--spacing-2xl) auto 0;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .about-expertise {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
}

@media (min-width: 1024px) {
    .about-expertise {
        grid-template-columns: repeat(3, 1fr);
        padding-top: var(--spacing-2xl);
    }
}

.expertise-item {
    display: flex;
    flex-direction: column;
}

.expertise-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.expertise-description {
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--text-secondary);
    flex-grow: 1;
}

/* ============================================
   Skills Section
   ============================================ */
.skills {
    background-color: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.skill-category {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.skill-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.skill-list {
    list-style: none;
}

.skill-list li {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    position: relative;
    padding-left: var(--spacing-md);
}

.skill-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

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

.testimonials-carousel-wrapper {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.testimonials-carousel-container {
    overflow: hidden;
    margin: 0 var(--spacing-xl);
    position: relative;
}

.testimonials-carousel {
    display: flex;
    gap: var(--spacing-lg);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.testimonial-card {
    flex: 0 0 100%;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    min-width: 0;
    box-sizing: border-box;
}

@media (min-width: 768px) {
    .testimonial-card {
        flex: 0 0 calc(50% - var(--spacing-lg) / 2);
    }
}

@media (min-width: 1024px) {
    .testimonial-card {
        flex: 0 0 calc(33.333% - var(--spacing-lg) * 2 / 3);
    }
}

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

.testimonial-quote {
    font-size: 2rem;
    line-height: 1;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
    font-style: italic;
}

.testimonial-footer {
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    background-color: var(--bg-tertiary);
    flex-shrink: 0;
}

.testimonial-author {
    flex-grow: 1;
}

.testimonial-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.testimonial-title {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Carousel Navigation Buttons */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.carousel-btn:hover {
    background-color: var(--bg-secondary);
    border-color: var(--accent-color);
    color: var(--accent-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.carousel-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.carousel-btn-prev {
    left: 0;
}

.carousel-btn-next {
    right: 0;
}

@media (max-width: 767px) {
    .testimonials-carousel-wrapper {
        padding: 0;
    }

    .testimonials-carousel-container {
        margin: 0 var(--spacing-md);
    }

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

    .carousel-btn-prev {
        left: var(--spacing-xs);
    }

    .carousel-btn-next {
        right: var(--spacing-xs);
    }
}

/* Carousel Dots */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.carousel-dot:hover {
    background-color: var(--text-secondary);
    transform: scale(1.2);
}

.carousel-dot.active {
    background-color: var(--accent-color);
    width: 24px;
    border-radius: 5px;
}

/* ============================================
   Developer Tools Marquee Section
   ============================================ */
.tools-marquee {
    background-color: var(--bg-secondary);
    padding: var(--spacing-2xl) 0;
    overflow: hidden;
}

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

.marquee-wrapper {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.marquee-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marquee-scroll 50s linear infinite;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
    will-change: transform;
}

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

.marquee-item {
    flex-shrink: 0;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    -webkit-user-select: none;
    user-select: none;
}

.marquee-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

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

    100% {
        transform: translateX(-50%);
    }
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background-color: var(--bg-primary);
}

.contact-header {
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
    text-align: left;
}

.contact-main-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.contact-description {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--text-secondary);
    margin-top: var(--spacing-md);
}

.contact-content-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

@media (min-width: 1024px) {
    .contact-content-wrapper {
        grid-template-columns: 2fr 1fr;
        gap: var(--spacing-2xl);
    }
}

.contact-form-container {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

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

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

@media (min-width: 768px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.form-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
    line-height: 1.6;
}

.form-submit {
    align-self: flex-start;
    margin-top: var(--spacing-sm);
}

.form-message {
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    display: none;
}

.form-message.success {
    display: block;
    background-color: rgba(34, 197, 94, 0.1);
    color: #16a34a;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.form-message.error {
    display: block;
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.contact-info-section {
    display: flex;
    align-items: flex-start;
}

.contact-info {
    width: 100%;
}

.contact-info-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

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

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--accent-color);
    transition: color var(--transition-fast), transform var(--transition-fast);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
}

.contact-link:hover {
    color: var(--accent-hover);
    transform: translateX(4px);
    background-color: var(--bg-secondary);
}

.contact-link-icon {
    font-size: var(--font-size-lg);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ============================================
   Utilities
   ============================================ */
@media (max-width: 768px) {
    section {
        padding: var(--spacing-xl) 0;
    }
}