/* Modern Reset & variables */
:root {
    --bg-color: #050505;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --accent-color: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

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

/* Background Effects */
.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    pointer-events: none;
    animation: moveGlow 15s infinite alternate;
}

@keyframes moveGlow {
    0% { transform: translate(-50%, -50%) scale(1); }
    100% { transform: translate(-30%, -30%) scale(1.1); }
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(5, 5, 5, 0.7);
    border-bottom: 1px solid var(--card-border);
    padding: 20px 0;
    transition: all 0.3s ease;
}

header.scrolled {
    padding: 15px 0;
    background: rgba(5, 5, 5, 0.95);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

nav ul {
    display: flex;
    gap: 30px;
}

nav a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

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

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-content {
    max-width: 600px;
}

.hero-greeting {
    color: var(--accent-color);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.9rem;
    margin-bottom: 15px;
    display: block;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 25px;
    background: linear-gradient(to right, #ffffff, #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 35px;
    max-width: 500px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    border: 1px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--text-secondary);
    color: var(--text-primary);
    margin-left: 15px;
}

.btn-outline:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 450px;
    height: 450px;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--card-border);
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.hero-visual:hover img {
    transform: scale(1.05);
}

/* Section Headings */
.section-header {
    margin-bottom: 60px;
    text-align: center;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-header p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
    backdrop-filter: blur(5px);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.project-img {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-img img {
    transform: scale(1.1);
}

.project-content {
    padding: 25px;
}

.project-category {
    font-size: 0.75rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
    margin-bottom: 10px;
    display: block;
}

.project-content h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.project-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

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

.project-links a {
    color: var(--text-primary);
    font-size: 1.1rem;
}

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

/* Base Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.skill-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    transition: 0.3s;
}

.skill-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-color);
}

.skill-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.skill-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--card-border);
    top: 0;
    bottom: 0;
    left: 20px;
    margin-left: -1px;
}

.timeline-item {
    position: relative;
    padding: 10px 40px;
    margin-bottom: 30px;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    right: auto;
    left: 12px;
    top: 15px;
    border-radius: 50%;
    z-index: 1;
    background: var(--bg-color);
    border: 3px solid var(--accent-color);
}

.timeline-content {
    padding: 20px 30px;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--card-border);
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: 5px;
    display: block;
    font-weight: 600;
}

.timeline-content h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.timeline-content h4 {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 15px;
}

.timeline-content li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
    list-style-type: disc;
    margin-left: 20px;
}

/* Contact Form */
.contact-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid var(--card-border);
}

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

.form-control {
    width: 100%;
    padding: 12px 15px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-main);
    transition: 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(0, 0, 0, 0.5);
}

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

/* Footer */
footer {
    border-top: 1px solid var(--card-border);
    padding: 30px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 50px;
}

.social-links {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-links a {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.social-links a:hover {
    color: var(--accent-color);
}

/* Media Queries */
@media (max-width: 900px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero {
        text-align: center;
        justify-content: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    nav ul {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-color);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid var(--card-border);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }
    
    nav ul.active {
        transform: translateY(0);
    }
}