/* ================ SCREEN READER ONLY ================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ================ BASE VARIABLES ================ */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    --neon-blue: #00f2ff;
    --neon-pink: #ff00f2;
    --neon-purple: #9d00ff;
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
    --transition-slow: all 0.5s ease;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-bg-hover: rgba(255, 255, 255, 0.08);
    --gradient-primary: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    --gradient-secondary: linear-gradient(135deg, var(--neon-pink), var(--neon-blue));
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
}

/* ================ LOADING ANIMATION ================ */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.quantum-loader {
    position: relative;
    width: 150px;
    height: 150px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.quantum-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background: transparent;
    border: 2px solid var(--neon-blue);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    animation: quantumRotate 4s linear infinite;
}

.quantum-core {
    position: absolute;
    width: 30px;
    height: 30px;
    background: var(--neon-blue);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    animation: quantumPulse 2s ease-in-out infinite;
    box-shadow: 0 0 30px var(--neon-blue);
}

.quantum-orbit {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 1px solid var(--neon-pink);
    border-radius: 50%;
    animation: quantumOrbit 6s linear infinite;
}

.quantum-orbit:nth-child(3) {
    width: 80%;
    height: 80%;
    border-color: var(--neon-purple);
    animation-delay: -2s;
    animation-direction: reverse;
}

.quantum-orbit:nth-child(4) {
    width: 60%;
    height: 60%;
    border-color: var(--neon-blue);
    animation-delay: -4s;
}

.quantum-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.quantum-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--neon-blue);
    border-radius: 50%;
    animation: quantumParticleFloat 3s ease-in-out infinite;
}

.quantum-particle:nth-child(1) {
    top: 10%;
    left: 20%;
    animation-delay: 0s;
}

.quantum-particle:nth-child(2) {
    top: 20%;
    right: 10%;
    background: var(--neon-pink);
    animation-delay: 0.5s;
}

.quantum-particle:nth-child(3) {
    bottom: 20%;
    left: 10%;
    background: var(--neon-purple);
    animation-delay: 1s;
}

.quantum-particle:nth-child(4) {
    bottom: 10%;
    right: 20%;
    animation-delay: 1.5s;
}

.quantum-particle:nth-child(5) {
    top: 50%;
    left: 5%;
    background: var(--neon-pink);
    animation-delay: 2s;
}

.quantum-particle:nth-child(6) {
    top: 50%;
    right: 5%;
    background: var(--neon-purple);
    animation-delay: 2.5s;
}

@keyframes quantumRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes quantumPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.7;
    }
}

@keyframes quantumOrbit {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes quantumParticleFloat {
    0%, 100% {
        transform: translateY(0) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-20px) scale(1.5);
        opacity: 1;
    }
}

.loading-text {
    position: absolute;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
    animation: loadingTextFade 2s ease-in-out infinite;
    font-family: 'Space Grotesk', monospace;
}

.loading-text::before {
    content: 'INITIALIZING';
    animation: loadingTextChange 4s linear infinite;
}

@keyframes loadingTextFade {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes loadingTextChange {
    0%, 25% { content: 'INITIALIZING'; }
    25.1%, 50% { content: 'LOADING'; }
    50.1%, 75% { content: 'PROCESSING'; }
    75.1%, 100% { content: 'READY'; }
}

/* Hide main content during loading */
body.loading {
    overflow: hidden;
}

body.loading .navbar,
body.loading .portfolio-hero,
body.loading .portfolio-section,
body.loading .footer {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

body.loaded .navbar,
body.loaded .portfolio-hero,
body.loaded .portfolio-section,
body.loaded .footer {
    opacity: 1;
    transform: translateY(0);
}

/* ================ BASE STYLES ================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Space Grotesk', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition), color var(--transition);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
    position: relative;
}

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    transition: color var(--transition);
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.5rem, 3vw, 1.8rem); }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 1.05rem;
    transition: color var(--transition);
}

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

.highlight {
    color: var(--neon-blue);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--neon-purple);
    opacity: 0.3;
    z-index: -1;
    transition: all var(--transition);
}

/* ================ BACKGROUND ELEMENTS ================ */
.bg-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.15;
    transition: opacity var(--transition);
}

.circle-1 {
    width: 300px;
    height: 300px;
    background: var(--neon-blue);
    top: 10%;
    left: 5%;
    animation: float 8s ease-in-out infinite;
}

.circle-2 {
    width: 400px;
    height: 400px;
    background: var(--neon-pink);
    bottom: 10%;
    right: 5%;
    animation: float 10s ease-in-out infinite;
}

.circle-3 {
    width: 200px;
    height: 200px;
    background: var(--neon-purple);
    top: 50%;
    right: 15%;
    animation: float 12s ease-in-out infinite;
}

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

/* ================ NAVIGATION ================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    background-color: var(--bg-secondary);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition);
}

.navbar.scrolled {
    padding: 15px 0;
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.2rem;
    transition: color var(--transition);
}

.logo-img {
    height: 28px;
    width: auto;
    transition: var(--transition);
}

.logo-text {
    transition: var(--transition);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 25px;
}

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

.nav-link span {
    position: relative;
    display: inline-block;
}

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

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

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.bar {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    margin: 5px 0;
    transition: var(--transition);
}

/* ================ PORTFOLIO HERO SECTION ================ */
.portfolio-hero {
    padding: 150px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.9), rgba(17, 17, 17, 0.9));
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(110, 69, 226, 0.1), rgba(0, 242, 255, 0.1));
    z-index: -1;
}

.portfolio-hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--bg-primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.stat {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    -webkit--webkit-backdrop-filter: blur(10px);`n    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);`n    backdrop-filter: blur(10px);
    transition: all var(--transition);
}

.stat:hover {
    transform: translateY(-5px);
    border-color: var(--neon-blue);
    box-shadow: 0 10px 30px rgba(0, 242, 255, 0.2);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--neon-blue);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ================ PORTFOLIO SECTION ================ */
.portfolio-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

/* ================ PORTFOLIO FILTER ================ */
.portfolio-filter {
    text-align: center;
    margin-bottom: 60px;
}

.filter-header {
    margin-bottom: 40px;
}

.filter-header h2 {
    margin-bottom: 15px;
    color: var(--text-primary);
}

.filter-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: left var(--transition);
    z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
    left: 0;
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--bg-primary);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 242, 255, 0.3);
}

.filter-btn i {
    font-size: 1rem;
}

.filter-count {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ================ PORTFOLIO GRID ================ */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.portfolio-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    position: relative;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--neon-blue);
    background: var(--card-bg-hover);
}

.portfolio-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition);
    z-index: 1;
}

.portfolio-item:hover::before {
    transform: scaleX(1);
}

.portfolio-image {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow), filter var(--transition);
    filter: brightness(1) contrast(1);
}

.portfolio-item:hover .project-img {
    transform: scale(1.08);
    filter: brightness(1.05) contrast(1.1);
}

.portfolio-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--gradient-secondary);
    color: var(--bg-primary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition);
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
}

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

.overlay-content {
    text-align: center;
}

.overlay-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: left var(--transition);
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--text-primary);
}

.btn-outline:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.portfolio-info {
    padding: 25px;
}

.portfolio-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.portfolio-category {
    color: var(--neon-blue);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.portfolio-year {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    font-weight: 500;
}

.portfolio-info h3 {
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.3;
}

.portfolio-info p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 1rem;
}

.portfolio-info .client-outcome {
    color: var(--neon-blue) !important;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 10px !important;
    display: block;
    font-style: normal;
}

.portfolio-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.portfolio-tag {
    background: rgba(0, 242, 255, 0.1);
    color: var(--neon-blue);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(0, 242, 255, 0.2);
    transition: all var(--transition);
}

.portfolio-item:hover .portfolio-tag {
    background: rgba(0, 242, 255, 0.2);
    border-color: rgba(0, 242, 255, 0.4);
    transform: translateY(-2px);
}

/* ================ PORTFOLIO CTA ================ */
.portfolio-cta {
    text-align: center;
    padding: 80px 0;
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ================ PROJECT MODAL ================ */
.project-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    -webkit-backdrop-filter: blur(10px);`n    backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity var(--transition);
}

.project-modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: transform var(--transition);
}

.project-modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: all var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.modal-body {
    padding: 30px;
}

/* ================ PROJECT MODAL ================ */
.project-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    -webkit-backdrop-filter: blur(10px);`n    backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity var(--transition);
}

.project-modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    max-width: 1200px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    overflow-x: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: transform var(--transition);
    position: relative;
    z-index: 2001;
}

.project-modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: var(--bg-secondary);
    z-index: 1;
}

.modal-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: all var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.modal-body {
    padding: 30px;
}

.project-modal-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    align-items: start;
}

.project-image-wrapper {
    position: relative;
    width: 100%;
}

.project-image {
    position: relative;
    border-radius: var(--border-radius);
    overflow: auto;
    background: var(--bg-tertiary);
    padding: 0;
    border: 1px solid var(--border-color);
    height: calc(90vh - 150px);
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    z-index: 1;
    isolation: isolate;
}

.project-image:active {
    cursor: grabbing;
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 242, 255, 0.03), rgba(255, 0, 242, 0.03));
    pointer-events: none;
    z-index: 1;
}

.modal-project-img {
    width: auto;
    height: 100%;
    max-width: none;
    object-fit: contain;
    object-position: center;
    border-radius: calc(var(--border-radius) - 2px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.4);
    transition: transform 0.1s ease-out;
    filter: brightness(1) contrast(1.05);
    position: relative;
    z-index: 1;
    user-select: none;
    -webkit-user-drag: none;
}

.modal-project-img.zoomed {
    cursor: zoom-out;
}

.image-zoom-controls {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    gap: 10px;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.85);
    padding: 8px;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    pointer-events: auto;
}

.zoom-btn {
    background: var(--neon-blue);
    color: var(--bg-primary);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    font-size: 1.1rem;
}

.zoom-btn:hover {
    background: var(--neon-pink);
    transform: scale(1.1);
}

.zoom-btn:active {
    transform: scale(0.95);
}

.project-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.project-category {
    color: var(--neon-blue);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-year {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    font-weight: 500;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}

.project-section h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.tech-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.tech-tag {
    background: rgba(0, 242, 255, 0.1);
    color: var(--neon-blue);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(0, 242, 255, 0.2);
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    color: var(--text-secondary);
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    padding-left: 20px;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
    font-weight: bold;
}

.project-actions {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

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

/* ================ FOOTER ================ */
.footer {
    background: var(--bg-secondary);
    padding: 80px 0 30px;
    position: relative;
    transition: var(--transition);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.footer-brand {
    max-width: 300px;
}

.footer-tagline {
    color: var(--neon-blue);
    margin: 15px 0;
    transition: var(--transition);
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.link-group h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.1rem;
    transition: var(--transition);
}

.link-group a {
    display: block;
    margin-bottom: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.link-group a:hover {
    color: var(--neon-blue);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 80px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-tertiary);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.portfolio-item:nth-child(1) { animation-delay: 0.1s; }
.portfolio-item:nth-child(2) { animation-delay: 0.2s; }
.portfolio-item:nth-child(3) { animation-delay: 0.3s; }
.portfolio-item:nth-child(4) { animation-delay: 0.4s; }
.portfolio-item:nth-child(5) { animation-delay: 0.5s; }
.portfolio-item:nth-child(6) { animation-delay: 0.6s; }
.portfolio-item:nth-child(7) { animation-delay: 0.7s; }
.portfolio-item:nth-child(8) { animation-delay: 0.8s; }

/* ================ RESPONSIVE DESIGN ================ */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
        gap: 25px;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat {
        padding: 15px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .portfolio-hero {
        padding: 120px 0 80px;
    }
    
    .portfolio-section {
        padding: 60px 0;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .portfolio-image {
        aspect-ratio: 16 / 9;
    }
    
    .filter-buttons {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .stat {
        width: 100%;
        max-width: 200px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-large {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    /* Mobile Navigation */
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        transition: var(--transition);
        z-index: 1000;
        -webkit-backdrop-filter: blur(20px);`n    backdrop-filter: blur(20px);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .menu-toggle.active .bar:nth-child(4) {
        transform: translateY(-14px) rotate(45deg);
    }
    
    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .portfolio-hero {
        padding: 100px 0 60px;
    }
    
    .portfolio-section {
        padding: 40px 0;
    }
    
    .portfolio-filter {
        margin-bottom: 40px;
    }
    
    .filter-buttons {
        gap: 8px;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .portfolio-info {
        padding: 20px;
    }
    
    .portfolio-info h3 {
        font-size: 1.2rem;
    }
    
    .portfolio-tag {
        padding: 4px 10px;
        font-size: 0.75rem;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .modal-header,
    .modal-body {
        padding: 20px;
    }
    
    .project-modal-content {
        gap: 20px;
    }
    
    .project-image {
        height: calc(90vh - 120px);
        min-height: 400px;
    }
    
    .modal-project-img {
        max-width: 200%;
    }
    
    .image-zoom-controls {
        top: 10px;
        right: 10px;
        padding: 6px;
        gap: 8px;
    }
    
    .zoom-btn {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
    
    .hero-title {
        font-size: clamp(2rem, 6vw, 2.5rem);
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
}

@media (max-width: 768px) {
    section {
        padding: 70px 0;
    }
    
    .circle-1, .circle-2, .circle-3 {
        display: none;
    }
    
    .portfolio-hero::before {
        background: linear-gradient(135deg, rgba(110, 69, 226, 0.05), rgba(0, 242, 255, 0.05));
    }
}

@media (max-width: 480px) {
    h1 { font-size: clamp(2rem, 6vw, 2.5rem); }
    h2 { font-size: clamp(1.7rem, 5vw, 2rem); }
    h3 { font-size: clamp(1.3rem, 4vw, 1.5rem); }
    
    p {
        font-size: 1rem;
    }
}