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

:root {
    --primary-color: #FFD700;
    --secondary-color: #FFA500;
    --accent-color: #FF6B35;
    --bg-primary: #0A0A0A;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #2A2A2A;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --text-muted: #808080;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-gold: 0 0 20px rgba(255, 215, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(255, 215, 0, 0.2);
}

html {
    scroll-behavior: smooth;
}

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

/* ===== LOADING SCREEN ===== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

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

.gold-shimmer {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--primary-color));
    background-size: 200% 200%;
    border-radius: 50%;
    animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(180deg); }
}

.loading-content h2 {
    font-family: 'Orbitron', monospace;
    color: var(--primary-color);
    font-size: 1.2rem;
    letter-spacing: 2px;
}

/* ===== PARTICLE BACKGROUND ===== */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* ===== RIPPLE EFFECT ===== */
.ripple-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
    opacity: 0.6;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.5;
    animation: float 20s infinite linear;
}

@keyframes float {
    from {
        transform: translateY(100vh) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.5;
    }
    90% {
        opacity: 0.5;
    }
    to {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}

/* ===== CUSTOM CURSOR ===== */
.cursor, .cursor-follower {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease;
}

.cursor {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.cursor-follower {
    width: 20px;
    height: 20px;
    border: 1px solid var(--primary-color);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease;
}

.cursor.hover {
    transform: translate(-50%, -50%) scale(2);
}

.cursor-follower.hover {
    transform: translate(-50%, -50%) scale(2);
    border-color: var(--secondary-color);
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
    text-shadow: 0 0 5px rgba(255, 215, 0, 0.5);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 100px 20px 50px;
    background: radial-gradient(circle at 20% 50%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 165, 0, 0.1) 0%, transparent 50%);
}

.hero-content {
    max-width: 1200px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    animation: slideInLeft 1s ease;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-title {
    font-family: 'Orbitron', monospace;
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
}

.title-line {
    display: block;
}

.subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    border-radius: 30px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    transition: left 0.3s ease;
    z-index: -1;
}

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

.btn-secondary::before {
    background: transparent;
}

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

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

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

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1.3rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.hero-visual {
    animation: slideInRight 1s ease;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.floating-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

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

.code-snippet {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.code-line {
    margin-bottom: 8px;
    opacity: 0;
    animation: fadeInUp 0.5s ease forwards;
}

.code-line:nth-child(1) { animation-delay: 0.1s; }
.code-line:nth-child(2) { animation-delay: 0.2s; }
.code-line:nth-child(3) { animation-delay: 0.3s; }
.code-line:nth-child(4) { animation-delay: 0.4s; }
.code-line:nth-child(5) { animation-delay: 0.5s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
    from {
        opacity: 0;
        transform: translateY(10px);
    }
}

.keyword { color: #FF6B35; }
.variable { color: #4ECDC4; }
.property { color: #FFD700; }
.string { color: #95E1D3; }

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    animation: bounce 2s infinite;
}

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

.scroll-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.scroll-arrow {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* ===== QUOTE SECTION ===== */
.quote-section {
    padding: 80px 20px;
    background: var(--bg-secondary);
    text-align: center;
}

.quote-container {
    max-width: 800px;
    margin: 0 auto;
}

.quote-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    opacity: 0.5;
}

.quote-text {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.quote-author {
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: 100px 20px;
    background: var(--bg-primary);
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.section-line {
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
}

.about-card h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: 'Orbitron', monospace;
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.image-container {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 20px;
    text-align: center;
}

.image-placeholder {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
    border: 2px solid var(--primary-color);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.image-placeholder:hover .profile-image {
    transform: scale(1.05);
}

/* ===== SKILLS SECTION ===== */
.skills {
    padding: 100px 20px;
    background: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.skill-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
}

.skill-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.skill-card h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 25px;
}

.skill-list {
    text-align: left;
}

.skill-item {
    margin-bottom: 15px;
}

.skill-item span {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.skill-bar {
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    width: 0;
    transition: width 1.5s ease;
}

/* ===== PROJECTS SECTION ===== */
.projects {
    padding: 100px 20px;
    background: var(--bg-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.project-image {
    height: 200px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-overlay i {
    font-size: 3rem;
    color: var(--primary-color);
}

.project-content {
    padding: 30px;
}

.project-content h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.tech-tag {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid var(--primary-color);
}

.project-links {
    display: flex;
    gap: 15px;
}

.project-link {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

/* ===== JOURNEY SECTION ===== */
.journey {
    padding: 100px 20px;
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
    margin-right: 0;
    text-align: right;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 0;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: var(--shadow-gold);
}

.timeline-marker i {
    color: var(--bg-primary);
    font-size: 1.2rem;
}

.timeline-content {
    width: 45%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    padding: 25px;
}

.timeline-date {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 10px;
    font-family: 'Orbitron', monospace;
}

.timeline-content h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===== EDUCATION SECTION ===== */
.education {
    padding: 100px 20px;
    background: var(--bg-secondary);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.education-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.education-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.education-content {
    flex: 1;
}

.education-content h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.education-school {
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 5px;
}

.education-date {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.education-content p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 20px;
}

.education-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.detail-item i {
    color: var(--primary-color);
}

/* ===== CERTIFICATIONS SECTION ===== */
.certifications {
    padding: 100px 20px;
    background: var(--bg-primary);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.cert-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.cert-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.cert-content {
    flex: 1;
}

.cert-content h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.cert-issuer {
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 5px;
}

.cert-date {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.cert-content p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 20px;
}

.cert-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: 100px 20px;
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
}

.contact-card h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.contact-details {
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.contact-item i {
    color: var(--primary-color);
    width: 20px;
}

.contact-social {
    display: flex;
    gap: 15px;
}

.form {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form input,
.form textarea {
    width: 100%;
    padding: 15px;
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
}

.form input:focus,
.form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

.form input::placeholder,
.form textarea::placeholder {
    color: var(--text-muted);
}

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

/* ===== FOOTER ===== */
.footer {
    padding: 40px 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.footer-links {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 1.1rem;
    font-weight: 500;
    padding: 8px 16px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: var(--glass-bg);
}

.footer-links a:hover {
    color: var(--primary-color);
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-primary);
        flex-direction: column;
        padding: 50px 20px;
        transition: left 0.3s ease;
    }

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

    .nav-toggle {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

    .social-links {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }

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

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

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        margin-left: 50px;
    }

    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 0;
        text-align: left;
    }

    .timeline-marker {
        left: 20px;
    }

    .timeline-content {
        width: 100%;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .btn {
        width: 200px;
        justify-content: center;
    }

    .about-card,
    .skill-card,
    .project-card,
    .contact-card,
    .form {
        padding: 25px;
    }

    .timeline-item {
        margin-left: 30px;
    }

    .timeline-marker {
        left: 10px;
        width: 30px;
        height: 30px;
    }
}

/* ===== UTILITY CLASSES ===== */
.floating {
    animation: float 6s ease-in-out infinite;
}

.floating:nth-child(2) {
    animation-delay: 2s;
}

.floating:nth-child(3) {
    animation-delay: 4s;
}

.hidden {
    opacity: 0;
    visibility: hidden;
}

.visible {
    opacity: 1;
    visibility: visible;
}