/* ===========================
   Variables
   =========================== */
:root {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --bg: #0F172A;
    --card-bg: #1E293B;
    --text: #F8FAFC;
    --text-secondary: #94A3B8;
    --accent: #22D3EE;
    --transition: 0.3s ease;
}

/* ===========================
   Reset & Base
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
}

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

/* ===========================
   Navigation
   =========================== */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

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

.logo {
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--text);
    text-decoration: none;
    transition: color var(--transition);
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 30px;
    transition: color var(--transition);
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--text);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 20px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-text h1 span {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text .subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

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

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all var(--transition);
}

.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

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

.btn-outline:hover {
    border-color: var(--primary);
    background: transparent;
    color: var(--primary);
}

.hero-image {
    display: flex;
    justify-content: center;
}

.profile-photo {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 30px 60px rgba(99, 102, 241, 0.3);
    border: 4px solid var(--primary);
}

/* ===========================
   Projects Section
   =========================== */
.projects {
    padding: 100px 20px;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
}

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

.project-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-image img {
    width: 100px;
    height: 100px;
    border-radius: 22px;
}

.project-image.emoji-bg span {
    font-size: 4rem;
}

.project-content {
    padding: 25px;
}

.project-card h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tag {
    background: rgba(99, 102, 241, 0.2);
    color: var(--accent);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
}

.project-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition);
}

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

/* ===========================
   About Section
   =========================== */
.about {
    padding: 100px 20px;
    background: var(--card-bg);
}

.about .container {
    max-width: 800px;
    text-align: center;
}

.about p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 40px;
}

.skill {
    background: var(--bg);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 500;
    transition: all var(--transition);
}

.skill:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

/* ===========================
   Footer
   =========================== */
footer {
    padding: 60px 20px;
    text-align: center;
}

.social-links {
    margin-bottom: 20px;
}

.social-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 15px;
    font-size: 1.5rem;
    transition: all var(--transition);
}

.social-links a:hover {
    color: var(--primary);
    transform: scale(1.2);
}

footer p {
    color: var(--text-secondary);
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 900px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .profile-photo {
        width: 250px;
        height: 250px;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-text .subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .profile-photo {
        width: 200px;
        height: 200px;
    }
}