/* ===== CSS Variables & Reset ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a2e;
    --bg-glass: rgba(26, 26, 46, 0.6);
    --text-primary: #e8e8f0;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;
    --accent-primary: #6c63ff;
    --accent-secondary: #00d4aa;
    --accent-gradient: linear-gradient(135deg, #6c63ff 0%, #00d4aa 100%);
    --accent-glow: rgba(108, 99, 255, 0.3);
    --border-color: rgba(255, 255, 255, 0.06);
    --nav-height: 70px;
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'Inter', -apple-system, sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Cursor Glow ===== */
.cursor-glow {
    position: fixed; width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(108,99,255,0.07) 0%, transparent 70%);
    border-radius: 50%; pointer-events: none; z-index: 0;
    transform: translate(-50%, -50%); transition: transform 0.1s ease;
}

/* ===== Particles Canvas ===== */
#particles {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 0; pointer-events: none;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; height: var(--nav-height);
    z-index: 1000; transition: var(--transition);
    background: transparent;
}
.navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}
.nav-container {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
    font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700;
    color: var(--text-primary); letter-spacing: 1px;
}
.logo-bracket { color: var(--accent-primary); }
.nav-links { display: flex; gap: 8px; }
.nav-link {
    padding: 8px 18px; font-size: 0.9rem; font-weight: 500;
    color: var(--text-secondary); border-radius: 8px; transition: var(--transition);
    position: relative;
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link.active {
    background: rgba(108, 99, 255, 0.12);
    color: var(--accent-primary);
}
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; z-index: 1001; }
.hamburger, .hamburger::before, .hamburger::after {
    display: block; width: 24px; height: 2px; background: var(--text-primary);
    border-radius: 2px; transition: var(--transition); position: relative;
}
.hamburger::before, .hamburger::after { content: ''; position: absolute; left: 0; }
.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }
.nav-toggle.active .hamburger { background: transparent; }
.nav-toggle.active .hamburger::before { top: 0; transform: rotate(45deg); }
.nav-toggle.active .hamburger::after { top: 0; transform: rotate(-45deg); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 28px; border-radius: var(--radius-sm); font-family: var(--font-main);
    font-size: 0.95rem; font-weight: 600; cursor: pointer;
    transition: var(--transition); border: none; position: relative; overflow: hidden;
}
.btn-primary {
    background: var(--accent-gradient); color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108,99,255,0.4);
}
.btn-outline {
    background: transparent; color: var(--text-primary);
    border: 2px solid rgba(108,99,255,0.4);
}
.btn-outline:hover {
    border-color: var(--accent-primary);
    background: rgba(108,99,255,0.08);
    transform: translateY(-2px);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh; display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    position: relative; z-index: 1; padding: 120px 24px 60px;
}
.hero-content {
    max-width: 1200px; width: 100%; display: grid;
    grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-greeting {
    font-size: 1.1rem; color: var(--accent-secondary); font-weight: 500;
    margin-bottom: 12px; display: flex; align-items: center; gap: 8px;
}
.wave { display: inline-block; animation: wave 2.5s infinite; transform-origin: 70% 70%; font-size: 1.4rem; }
@keyframes wave {
    0%,60%,100% { transform: rotate(0); }
    10%,30% { transform: rotate(14deg); }
    20% { transform: rotate(-8deg); }
    40% { transform: rotate(-4deg); }
    50% { transform: rotate(10deg); }
}
.hero-name { font-family: var(--font-heading); line-height: 1.1; margin-bottom: 16px; }
.name-line {
    display: block; font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800;
    letter-spacing: -1px;
}
.name-line.accent {
    background: var(--accent-gradient); -webkit-background-clip: text;
    -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-typewriter {
    font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 20px;
    height: 32px; display: flex; align-items: center;
}
.typewriter-prefix { margin-right: 4px; }
.typewriter-text { color: var(--accent-primary); font-weight: 600; }
.typewriter-cursor { color: var(--accent-primary); animation: blink 1s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
.hero-description {
    font-size: 1.05rem; color: var(--text-secondary); max-width: 500px;
    margin-bottom: 32px; line-height: 1.8;
}
.hero-cta { display: flex; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; }
.hero-social { display: flex; gap: 16px; }
.social-link {
    width: 44px; height: 44px; border-radius: 12px;
    border: 1px solid var(--border-color); display: flex;
    align-items: center; justify-content: center; font-size: 1.1rem;
    color: var(--text-secondary); transition: var(--transition);
    background: var(--bg-glass);
}
.social-link:hover {
    color: var(--accent-primary); border-color: var(--accent-primary);
    transform: translateY(-3px); box-shadow: 0 6px 20px var(--accent-glow);
}

/* Hero Visual */
.hero-visual { display: flex; justify-content: center; align-items: center; position: relative; }
.profile-ring {
    width: 320px; height: 320px; border-radius: 50%;
    background: var(--accent-gradient); padding: 4px;
    animation: rotate 8s linear infinite;
    position: relative;
}
@keyframes rotate { from { transform: rotate(0); } to { transform: rotate(360deg); } }
.profile-ring-inner {
    width: 100%; height: 100%; border-radius: 50%;
    background: var(--bg-primary); padding: 6px;
    display: flex; align-items: center; justify-content: center;
    animation: rotateReverse 8s linear infinite;
}
@keyframes rotateReverse { from { transform: rotate(0); } to { transform: rotate(-360deg); } }
.profile-placeholder {
    width: 100%; height: 100%; border-radius: 50%;
    background: var(--bg-card); display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 8px;
    color: var(--text-muted); font-size: 0.85rem;
}
.profile-placeholder i { font-size: 3rem; color: var(--accent-primary); opacity: 0.5; }
.profile-placeholder img {
    width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
}
.floating-badge {
    position: absolute; display: flex; align-items: center; gap: 8px;
    padding: 10px 18px; border-radius: 50px;
    background: var(--bg-glass); backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    font-size: 0.82rem; font-weight: 600; color: var(--text-primary);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.floating-badge i { color: var(--accent-primary); }
.badge-1 { top: 20px; right: 10px; animation: float 3s ease-in-out infinite; }
.badge-2 { bottom: 40px; left: -10px; animation: float 3s ease-in-out 1s infinite; }
.badge-3 { bottom: -10px; right: 30px; animation: float 3s ease-in-out 2s infinite; }
@keyframes float {
    0%,100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute; bottom: 30px; display: flex; flex-direction: column;
    align-items: center; gap: 8px; color: var(--text-muted); font-size: 0.75rem;
    letter-spacing: 2px; text-transform: uppercase; animation: fadeInUp 1s 2s forwards; opacity: 0;
}
@keyframes fadeInUp { to { opacity: 1; } }
.mouse {
    width: 24px; height: 38px; border: 2px solid var(--text-muted);
    border-radius: 12px; display: flex; justify-content: center; padding-top: 6px;
}
.mouse-wheel {
    width: 3px; height: 8px; background: var(--accent-primary);
    border-radius: 3px; animation: scroll 2s infinite;
}
@keyframes scroll { 0% { opacity: 1; transform: translateY(0); } 100% { opacity: 0; transform: translateY(12px); } }

/* ===== Section Styles ===== */
.section { padding: 100px 0; position: relative; z-index: 1; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
    font-family: 'Courier New', monospace; font-size: 0.85rem;
    color: var(--accent-secondary); display: block; margin-bottom: 12px;
}
.section-title {
    font-family: var(--font-heading); font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800; margin-bottom: 16px;
}
.section-line {
    width: 60px; height: 4px; background: var(--accent-gradient);
    border-radius: 2px; margin: 0 auto 16px;
}
.section-subtitle { color: var(--text-secondary); font-size: 1.05rem; }

/* ===== About Section ===== */
.about { background: var(--bg-secondary); }
.about-content { display: grid; grid-template-columns: 1fr 1.4fr; gap: 60px; align-items: center; }
.about-image-wrapper { position: relative; }
.about-image {
    width: 280px; height: 320px; border-radius: var(--radius);
    overflow: hidden; position: relative; margin: 0 auto;
}
.about-img-placeholder {
    width: 100%; height: 100%; background: var(--bg-card);
    display: flex; align-items: center; justify-content: center;
}
.about-img-placeholder i { font-size: 4rem; color: var(--accent-primary); opacity: 0.4; }
.about-decoration {
    position: absolute; top: -12px; left: calc(50% + 20px); right: -12px; bottom: 12px;
    border: 3px solid var(--accent-primary); border-radius: var(--radius);
    opacity: 0.3; z-index: -1; width: 280px;
}
.about-subtitle {
    font-family: var(--font-heading); font-size: 1.6rem; font-weight: 700; margin-bottom: 20px;
}
.accent { color: var(--accent-primary); }
.about-description { color: var(--text-secondary); margin-bottom: 16px; font-size: 1rem; }
.about-description strong { color: var(--text-primary); }
.highlight {
    color: var(--accent-secondary); font-weight: 700;
    background: rgba(0, 212, 170, 0.1); padding: 2px 8px; border-radius: 4px;
}
.about-stats { display: flex; gap: 20px; margin: 32px 0; }
.stat-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); padding: 20px 28px; text-align: center;
    transition: var(--transition);
}
.stat-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}
.stat-number {
    display: block; font-family: var(--font-heading); font-size: 1.8rem;
    font-weight: 800; background: var(--accent-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }

/* ===== Skills Section ===== */
.skills-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.skill-category {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 32px; transition: var(--transition);
}
.skill-category:hover {
    border-color: rgba(108,99,255,0.3);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.skill-category-header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.skill-category-header h3 { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700; }
.skill-icon-wrapper {
    width: 50px; height: 50px; border-radius: 14px;
    display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
}
.skill-icon-wrapper.frontend { background: rgba(108,99,255,0.15); color: var(--accent-primary); }
.skill-icon-wrapper.backend { background: rgba(0,212,170,0.15); color: var(--accent-secondary); }
.skill-icon-wrapper.database { background: rgba(255,107,107,0.15); color: #ff6b6b; }
.skill-icon-wrapper.languages { background: rgba(255,193,7,0.15); color: #ffc107; }
.skill-items { display: flex; flex-direction: column; gap: 18px; }
.skill-item { display: grid; grid-template-columns: 28px 80px 1fr; align-items: center; gap: 12px; }
.skill-item i { font-size: 1.2rem; color: var(--text-secondary); }
.skill-item span { font-size: 0.9rem; font-weight: 500; }
.skill-bar {
    height: 6px; background: rgba(255,255,255,0.06); border-radius: 3px; overflow: hidden;
}
.skill-fill {
    height: 100%; background: var(--accent-gradient); border-radius: 3px;
    width: 0; transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Projects Section ===== */
.projects { background: var(--bg-secondary); }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.project-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius); overflow: hidden; transition: var(--transition);
}
.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    border-color: rgba(108,99,255,0.3);
}
.project-image { position: relative; height: 200px; overflow: hidden; }
.project-img-placeholder {
    width: 100%; height: 100%; background: linear-gradient(135deg, var(--bg-primary), var(--bg-card));
    display: flex; align-items: center; justify-content: center;
}
.project-img-placeholder i { font-size: 3rem; color: var(--accent-primary); opacity: 0.3; }
.project-overlay {
    position: absolute; inset: 0;
    background: rgba(108,99,255,0.85);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: var(--transition);
}
.project-card:hover .project-overlay { opacity: 1; }
.project-links { display: flex; gap: 16px; }
.project-link {
    width: 48px; height: 48px; border-radius: 50%;
    background: rgba(255,255,255,0.2); display: flex;
    align-items: center; justify-content: center;
    color: #fff; font-size: 1.1rem; transition: var(--transition);
    border: 2px solid rgba(255,255,255,0.3);
}
.project-link:hover { background: #fff; color: var(--accent-primary); transform: scale(1.1); }
.project-info { padding: 24px; }
.project-title { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.project-description { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; margin-bottom: 16px; }
.project-tech { display: flex; gap: 8px; flex-wrap: wrap; }
.tech-tag {
    padding: 4px 14px; border-radius: 50px; font-size: 0.75rem; font-weight: 600;
    background: rgba(108,99,255,0.1); color: var(--accent-primary);
    border: 1px solid rgba(108,99,255,0.2);
}

/* ===== Contact Section ===== */
.contact-content {
    display: grid; grid-template-columns: 1fr 1.5fr; gap: 40px; align-items: start;
}
.contact-info-cards { display: flex; flex-direction: column; gap: 20px; }
.contact-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 28px; transition: var(--transition);
}
.contact-card:hover {
    border-color: rgba(108,99,255,0.3);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}
.contact-card-icon {
    width: 50px; height: 50px; border-radius: 14px;
    background: rgba(108,99,255,0.12); color: var(--accent-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; margin-bottom: 14px;
}
.contact-card h4 { font-family: var(--font-heading); font-size: 1.05rem; margin-bottom: 4px; }
.contact-card p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 10px; }
.contact-card-link {
    font-size: 0.88rem; font-weight: 600; color: var(--accent-primary); transition: var(--transition);
}
.contact-card-link:hover { color: var(--accent-secondary); }
.contact-form-wrapper {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 40px;
}
.form-group { position: relative; margin-bottom: 28px; }
.form-group input, .form-group textarea {
    width: 100%; padding: 14px 0 10px; font-family: var(--font-main);
    font-size: 0.95rem; color: var(--text-primary); background: transparent;
    border: none; border-bottom: 2px solid var(--border-color); outline: none;
    transition: var(--transition); resize: none;
}
.form-group label {
    position: absolute; top: 14px; left: 0; font-size: 0.9rem;
    color: var(--text-muted); pointer-events: none; transition: var(--transition);
}
.form-group input:focus ~ label, .form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label, .form-group textarea:not(:placeholder-shown) ~ label {
    top: -8px; font-size: 0.75rem; color: var(--accent-primary);
}
.form-group input:focus, .form-group textarea:focus { border-bottom-color: var(--accent-primary); }
.btn-submit { width: 100%; justify-content: center; }

/* ===== Footer ===== */
.footer {
    background: var(--bg-secondary); border-top: 1px solid var(--border-color);
    padding: 40px 0; text-align: center;
}
.footer-content { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.footer-logo { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; }
.footer-text { color: var(--text-secondary); font-size: 0.9rem; }
.heart { color: #ff4757; animation: heartbeat 1.5s infinite; display: inline-block; }
@keyframes heartbeat { 0%,100% { transform: scale(1); } 50% { transform: scale(1.2); } }
.footer-social { display: flex; gap: 12px; }
.footer-copyright { color: var(--text-muted); font-size: 0.8rem; }

/* ===== Scroll Animations ===== */
.animate-on-scroll { opacity: 0; transform: translateY(30px); transition: opacity 0.6s, transform 0.6s; }
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-description { margin: 0 auto 32px; }
    .hero-cta { justify-content: center; }
    .hero-social { justify-content: center; }
    .hero-visual { order: -1; }
    .profile-ring { width: 250px; height: 250px; }
    .about-content { grid-template-columns: 1fr; text-align: center; }
    .about-image { margin: 0 auto; }
    .about-decoration { display: none; }
    .about-stats { justify-content: center; }
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-content { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
        background: var(--bg-secondary); flex-direction: column;
        justify-content: center; align-items: center; gap: 8px;
        transition: var(--transition); border-left: 1px solid var(--border-color);
    }
    .nav-links.active { right: 0; }
    .nav-toggle { display: block; }
    .skills-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .hero-cta { flex-direction: column; align-items: center; }
    .floating-badge { display: none; }
}