/* ============================================
   CSS VARIABLES AND RESET
   ============================================ */
:root {
    /* Dark Theme Colors */
    --primary-color: #00d4ff;
    --secondary-color: #ff00ff;
    --accent-color: #00ff88;
    --dark-color: #0a0a0a;
    --dark-secondary: #1a1a1a;
    --dark-tertiary: #2a2a2a;
    --text-color: #e0e0e0;
    --text-light: #b0b0b0;
    --success-color: #00ff88;
    --warning-color: #ffaa00;
    --danger-color: #ff0055;
    --border-color: #333333;
    
    /* Shadows for dark theme */
    --shadow-sm: 0 2px 4px 0 rgba(0, 212, 255, 0.1);
    --shadow-md: 0 4px 8px -1px rgba(0, 212, 255, 0.15);
    --shadow-lg: 0 10px 20px -3px rgba(0, 212, 255, 0.2);
    --shadow-xl: 0 20px 30px -5px rgba(0, 212, 255, 0.25);
    --glow: 0 0 20px rgba(0, 212, 255, 0.5);
    
    /* Layout */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --max-width: 1200px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* Particles Background */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a0033 100%);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-color);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-shift 3s ease infinite;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
    box-shadow: var(--glow);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes gradient-shift {
    0%, 100% { 
        background-position: 0% 50%;
    }
    50% { 
        background-position: 100% 50%;
    }
}

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

@keyframes pulse-glow {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
    }
    50% { 
        box-shadow: 0 0 40px rgba(0, 212, 255, 0.8);
    }
}

@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-block;
    padding: 14px 35px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--dark-color);
    font-weight: 600;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

.btn-glow {
    animation: pulse-glow 2s infinite;
}

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

.btn-outline:hover {
    color: var(--dark-color);
    background: var(--primary-color);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.8);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.nav-menu a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: slide-in-left 1s ease;
    text-shadow: 0 0 50px rgba(0, 212, 255, 0.3);
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    animation: slide-in-left 1s ease 0.2s backwards;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: slide-in-left 1s ease 0.4s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    animation: slide-in-left 1s ease 0.6s backwards;
}

.hero-image {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.3);
    border: 2px solid rgba(0, 212, 255, 0.2);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: 80px 0;
    background: var(--dark-secondary);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
}

.info-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.info-card {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(255, 0, 255, 0.05));
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 212, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
}

.info-card:hover::before {
    opacity: 1;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
    border-color: var(--primary-color);
}

.info-card-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

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

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills {
    padding: 80px 0;
    background: var(--dark-color);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--dark-secondary);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: translateX(-100%);
    transition: transform 0.5s;
}

.skill-category:hover::before {
    transform: translateX(0);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
    border-color: var(--primary-color);
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.skill-category-icon {
    font-size: 2rem;
    color: var(--primary-color);
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.5));
}

.skill-category-name {
    font-size: 1.25rem;
    font-weight: 600;
}

.skill-item {
    margin-bottom: 1.2rem;
}

.skill-name {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.skill-bar {
    height: 8px;
    background: var(--dark-tertiary);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
.experience {
    padding: 80px 0;
    background: var(--dark-secondary);
}

.timeline {
    position: relative;
    padding: 2rem 0;
}

.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%);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeInUp 0.6s forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }

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

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 52%;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 52%;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--dark-secondary);
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 1;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.8);
}

.timeline-content {
    background: var(--dark-tertiary);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
    border-color: var(--primary-color);
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-company {
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.timeline-period {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.timeline-description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.timeline-achievements {
    list-style: none;
    text-align: left;
}

.timeline-achievements li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.timeline-achievements li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects {
    padding: 80px 0;
    background: var(--dark-color);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    background: var(--dark-secondary);
    border: 2px solid rgba(0, 212, 255, 0.2);
    border-radius: 25px;
    color: var(--text-light);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--dark-color);
    border-color: transparent;
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.3);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--dark-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition);
    position: relative;
    opacity: 1;
    transform: scale(1);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s;
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
    border-color: var(--primary-color);
}

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
    filter: brightness(0.8);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
    filter: brightness(1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.9), rgba(255, 0, 255, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    opacity: 0;
    transition: var(--transition);
}

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

.project-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--dark-color);
    border-radius: 50%;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.project-link:hover {
    transform: scale(1.2);
    background: var(--primary-color);
    color: var(--dark-color);
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.project-description {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    padding: 5px 15px;
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: 80px 0;
    background: var(--dark-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--dark-tertiary);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 212, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    transition: var(--transition);
}

.service-card:hover::before {
    top: -150%;
    left: -150%;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
    border-color: var(--primary-color);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.5));
}

.service-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.service-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-features {
    list-style: none;
    text-align: left;
}

.service-features li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.service-features li::before {
    content: '✦';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials {
    padding: 80px 0;
    background: var(--dark-color);
}

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

.testimonial-card {
    background: var(--dark-secondary);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 212, 255, 0.1);
    margin-bottom: 2rem;
    transition: var(--transition);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
}

.testimonial-card:hover {
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
    border-color: var(--primary-color);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.testimonial-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.testimonial-info {
    flex: 1;
}

.testimonial-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.testimonial-role {
    color: var(--text-light);
    font-size: 0.9rem;
}

.testimonial-rating {
    color: var(--warning-color);
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 5px rgba(255, 170, 0, 0.5));
}

.testimonial-text {
    color: var(--text-light);
    line-height: 1.8;
    font-style: italic;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: 80px 0;
    background: var(--dark-secondary);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(255, 0, 255, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.25rem;
    border: 1px solid rgba(0, 212, 255, 0.3);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.contact-details h4 {
    margin-bottom: 0.25rem;
    font-size: 1rem;
    color: var(--text-color);
}

.contact-details p {
    color: var(--text-light);
}

.contact-details a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

.contact-details a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.contact-cta {
    margin-top: 3rem;
}

.contact-text {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark-color);
    color: var(--text-light);
    padding: 2rem 0;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-text {
    color: var(--text-light);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--dark-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 212, 255, 0.3);
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--dark-color);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.3);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.5);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .hero-content,
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 80px;
        margin-right: 0;
        text-align: left;
    }

    .timeline-dot {
        left: 30px;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--dark-secondary);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        border-top: 1px solid rgba(0, 212, 255, 0.1);
    }

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

    .nav-toggle {
        display: flex;
    }

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

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

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

    .info-cards {
        grid-template-columns: 1fr;
    }

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

    .filter-buttons {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 1rem;
    }

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

    .contact-info {
        flex-direction: column;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

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

    .section-title {
        font-size: 1.75rem;
    }

    .btn {
        padding: 12px 25px;
        font-size: 0.9rem;
    }

    .timeline::before {
        display: none;
    }

    .timeline-dot {
        display: none;
    }

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