/* ============================================
   DESIGN SYSTEM & VARIABLES
   ============================================ */

:root {
    /* Color Palette - Dark Theme */
    --color-bg-primary: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-bg-elevated: #1a1a1a;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a3a3a3;
    --color-text-tertiary: #737373;
    --color-border: #262626;
    --color-border-hover: #404040;
    --color-accent: #6366f1;
    --color-accent-hover: #4f46e5;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Gradients */
    --color-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --color-gradient-hover: linear-gradient(135deg, #4f46e5 0%, #9333ea 100%);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Space Grotesk', var(--font-sans);

    /* Font Sizes */
    --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: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* 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;

    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-full: 9999px;

    /* Shadows */
    --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, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --container-max-width: 1280px;
    --nav-height: 80px;

    /* Blurs */
    --blur-sm: blur(8px);
    --blur-md: blur(16px);
}

/* Light Theme */
[data-theme="light"] {
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-elevated: #f3f4f6;
    --color-text-primary: #0a0a0a;
    --color-text-secondary: #525252;
    --color-text-tertiary: #a3a3a3;
    --color-border: #e5e7eb;
    --color-border-hover: #d1d5db;
}

/* ============================================
   GLOBAL RESET & BASE STYLES
   ============================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    max-width: 100%;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
}

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

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

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

/* ============================================
   REUSABLE COMPONENTS
   ============================================ */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-gradient);
    color: white;
    border: none;
}

.btn-primary:hover {
    background: var(--color-gradient-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

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

.btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Gradient Text */
.gradient-text {
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(10, 10, 10, 0.8);
    -webkit-backdrop-filter: var(--blur-md);
    backdrop-filter: var(--blur-md);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(10, 10, 10, 0.95);
    box-shadow: var(--shadow-lg);
}

[data-theme="light"] .nav {
    background: rgba(255, 255, 255, 0.8);
}

[data-theme="light"] .nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 700;
    font-family: var(--font-display);
    color: var(--color-text-primary);
}

.logo-image {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-md);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg-primary);
        flex-direction: column;
        padding: var(--spacing-2xl);
        gap: var(--spacing-xl);
        transform: translateX(100%);
        transition: transform var(--transition-base);
    }

    .nav-menu.active {
        transform: translateX(0);
    }
}

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

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-gradient);
    border-radius: var(--border-radius-full);
}

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

.theme-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    color: var(--color-text-primary);
    transition: all var(--transition-base);
}

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

.sun-icon {
    display: none;
}

[data-theme="light"] .sun-icon {
    display: block;
}

[data-theme="light"] .moon-icon {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
}

.nav-toggle span {
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.gradient-mesh {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15), transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(168, 85, 247, 0.15), transparent 50%);
}

.geometric-pattern {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(var(--color-border) 1px, transparent 1px),
                      linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

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

@media (min-width: 1024px) {
    .hero-container {
        grid-template-columns: 1.2fr 1fr;
    }
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 100%;
    white-space: normal;
    word-break: break-word;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: var(--font-size-6xl);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    overflow-wrap: break-word;
    word-break: break-word;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-4xl);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    max-width: 600px;
    margin-bottom: var(--spacing-2xl);
    overflow-wrap: break-word;
    word-break: break-word;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
}

@media (max-width: 480px) {
    .hero-stats {
        gap: var(--spacing-md);
    }

    .stat-value {
        font-size: var(--font-size-2xl);
    }

    .stat-label {
        font-size: var(--font-size-xs);
    }
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    font-family: var(--font-display);
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-top: var(--spacing-xs);
}

.hero-visual {
    position: relative;
    animation: fadeIn 1s ease-out 0.3s backwards;
}

.hero-mockup {
    position: relative;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg,
        rgba(99, 102, 241, 0.1),
        rgba(168, 85, 247, 0.1));
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    -webkit-backdrop-filter: var(--blur-sm);
    backdrop-filter: var(--blur-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    overflow: hidden;
}

.hero-logo-large {
    max-width: 400px;
    border-radius: var(--border-radius-lg);
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 20px 40px rgba(99, 102, 241, 0.3));
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-4xl);
}

.section-label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

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

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

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

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

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

.project-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.project-image {
    position: relative;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg,
        rgba(99, 102, 241, 0.1),
        rgba(168, 85, 247, 0.1));
    overflow: hidden;
}

.project-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-tertiary);
}

/* Screenshot slider for project cards with real images */
.project-screenshots {
    position: relative;
    width: 100%;
    height: 100%;
}

.screenshot-slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.screenshot-slide.active {
    opacity: 1;
}

.screenshot-dots {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 10;
}

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: background var(--transition-fast);
    border: none;
}

.dot.active {
    background: white;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    -webkit-backdrop-filter: var(--blur-sm);
    backdrop-filter: var(--blur-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

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

.project-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.project-description {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

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

.tech-tag {
    padding: 0.375rem 0.75rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* ============================================
   PROJECT MODAL
   ============================================ */

.project-modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1100;
}

.project-modal.open {
    display: flex;
}

.project-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    -webkit-backdrop-filter: var(--blur-md);
    backdrop-filter: var(--blur-md);
}

.project-modal-dialog {
    position: relative;
    max-width: 1000px;
    width: 100%;
    margin: 0 var(--spacing-lg);
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl);
    z-index: 1;
}

.project-modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 32px;
    height: 32px;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
    color: var(--color-text-secondary);
    font-size: 1.25rem;
    line-height: 1;
}

.project-modal-close:hover {
    background: var(--color-bg-secondary);
}

.project-modal-header {
    margin-bottom: var(--spacing-xl);
}

.project-modal-header h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.project-modal-header p {
    color: var(--color-text-secondary);
}

.project-modal-body {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.project-modal-gallery {
    position: relative;
    flex: 1;
    aspect-ratio: 9 / 16;
    max-height: 80vh;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: #000;
}

.project-modal-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.project-modal-image.active {
    opacity: 1;
}

.project-modal-nav {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.project-modal-nav:hover {
    background: var(--color-bg-secondary);
}

.project-modal-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: var(--spacing-lg);
}

.project-modal-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--color-border);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.project-modal-dot.active {
    width: 18px;
    background: var(--color-accent);
}

/* ============================================
   TECH STACK SECTION
   ============================================ */
.tech-stack {
    background: var(--color-bg-primary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .tech-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.tech-item {
    position: relative;
    padding: var(--spacing-xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

.tech-item:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tech-item::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%) scale(0.9);
    padding: 0.5rem 1rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    z-index: 10;
}

.tech-item:hover::before {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

.tech-icon {
    width: 40px;
    height: 40px;
    color: var(--color-accent);
}

.tech-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background: var(--color-bg-secondary);
}

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

@media (min-width: 1024px) {
    .about-content {
        grid-template-columns: 1.5fr 1fr;
    }
}

.about-text .section-header {
    text-align: left;
    margin-bottom: var(--spacing-2xl);
}

.about-body {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-secondary);
}

.about-body p {
    margin-bottom: var(--spacing-lg);
}

.about-body strong {
    color: var(--color-text-primary);
}

.values-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

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

.value-card {
    padding: var(--spacing-xl);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.value-card:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.value-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.value-card h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.value-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

.about-visual {
    position: sticky;
    top: calc(var(--nav-height) + 2rem);
}

.about-image {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

/* About section photo slider */
.about-photo-slider {
    position: relative;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    aspect-ratio: 4 / 5;
    width: 100%;
}

.about-slide {
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.6s ease;
    object-fit: cover;
    object-position: top;
    border-radius: var(--border-radius-xl);
}

.about-slide.active {
    opacity: 1;
}

.about-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.about-profile-card {
    position: relative;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg,
        rgba(99, 102, 241, 0.12),
        rgba(168, 85, 247, 0.18));
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--color-border);
    -webkit-backdrop-filter: var(--blur-sm);
    backdrop-filter: var(--blur-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.about-profile-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(15, 23, 42, 0.8);
    color: var(--color-text-on-accent);
}

.about-profile-title {
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    margin: 0;
}

.about-profile-text {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.profile-image {
    width: 100%;
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--color-border);
    animation: fadeInScale 1s ease-out;
}

.profile-image::before {
    content: '';
    position: absolute;
    inset: -4px;
    background: var(--color-gradient);
    border-radius: var(--border-radius-xl);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
}

.about-image:hover .profile-image::before {
    opacity: 1;
}

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

.credential-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.credential-item:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-hover);
    transform: translateX(4px);
}

.credential-icon {
    font-size: var(--font-size-2xl);
}

.credential-logo {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.credential-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.credential-logo--wide {
    width: 100px;
    height: 44px;
}

.credential-item strong {
    display: block;
    font-size: var(--font-size-base);
    margin-bottom: 0.25rem;
}

.credential-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin: 0;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    background: var(--color-bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-4xl);
}

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

.service-card {
    position: relative;
    padding: var(--spacing-2xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-base);
}

.service-card.featured {
    background: linear-gradient(135deg,
        rgba(99, 102, 241, 0.1),
        rgba(168, 85, 247, 0.1));
    border-color: var(--color-accent);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}

.service-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: 0.375rem 0.75rem;
    background: var(--color-accent);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.service-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.service-outcomes {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.service-outcomes li {
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.service-outcomes li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: bold;
    flex-shrink: 0;
}

.who-i-work-with {
    padding: var(--spacing-3xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    text-align: center;
}

.who-i-work-with h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-2xl);
}

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

@media (min-width: 768px) {
    .client-types {
        grid-template-columns: repeat(3, 1fr);
    }
}

.client-type {
    padding: var(--spacing-xl);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.client-type:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.client-type strong {
    display: block;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.client-type p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

/* ============================================
   BLOG SECTION
   ============================================ */
.blog {
    background: var(--color-bg-secondary);
}

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

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

.blog-card {
    padding: var(--spacing-2xl);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-base);
}

.blog-card:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

.blog-date,
.blog-read-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.blog-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-normal);
}

.blog-excerpt {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
}

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

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-4xl);
}

@media (min-width: 1024px) {
    .contact-wrapper {
        grid-template-columns: 1fr 1.2fr;
    }
}

.contact-info h2 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

.contact-intro {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.contact-method:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-accent);
    transform: translateX(4px);
}

.method-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-method strong {
    display: block;
    margin-bottom: 0.25rem;
}

.contact-method p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

.availability {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg,
        rgba(16, 185, 129, 0.1),
        rgba(5, 150, 105, 0.1));
    border: 1px solid var(--color-success);
    border-radius: var(--border-radius-lg);
    color: var(--color-success);
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.contact-form-wrapper {
    padding: var(--spacing-3xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-xl);
}

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

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

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

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

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-4xl) 0 var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1.5fr 2fr;
    }
}

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

.footer-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-md);
}

.footer-brand p {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    max-width: 400px;
    margin: 0;
}

.footer-location {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

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

.footer-column h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.footer-column a:hover {
    color: var(--color-accent);
    transform: translateX(2px);
}

.footer-bottom {
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

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

/* ============================================
   MOBILE OPTIMIZATIONS
   ============================================ */

@media (max-width: 640px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero {
        align-items: flex-start;
        padding-top: calc(var(--nav-height) + var(--spacing-xl));
        padding-bottom: var(--spacing-3xl);
    }

    .hero-container {
        gap: var(--spacing-3xl);
    }

    .hero-mockup {
        padding: var(--spacing-xl);
    }

    .hero-logo-large {
        max-width: 260px;
    }

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

    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--spacing-lg);
    }

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

    .project-title {
        font-size: var(--font-size-lg);
    }

    .project-description {
        font-size: var(--font-size-sm);
    }

    .about-content {
        gap: var(--spacing-3xl);
    }

    .about-visual {
        position: static;
    }

    .about-profile-card {
        padding: var(--spacing-xl);
    }

    .services-grid,
    .blog-grid,
    .client-types,
    .footer-links {
        gap: var(--spacing-xl);
    }

    .project-modal-body {
        flex-direction: column;
        align-items: stretch;
    }

    .project-modal-gallery {
        max-height: 60vh;
    }

    .contact-form-wrapper {
        padding: var(--spacing-2xl);
    }

    .who-i-work-with {
        padding: var(--spacing-2xl);
    }

    section {
        padding-top: var(--spacing-3xl);
        padding-bottom: var(--spacing-3xl);
    }

    .scroll-to-top {
        bottom: 1.25rem !important;
        right: 1.25rem !important;
        width: 40px !important;
        height: 40px !important;
    }
}

@media (max-width: 400px) {
    .hero-stats {
        grid-template-columns: 1fr;
    }

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