/* =========================================
   CSS Variables & Reset
   ========================================= */
:root {
    --bg: #080c14;
    --bg-2: #0d1117;
    --bg-3: #161b27;
    --surface: rgba(255,255,255,0.04);
    --surface-hover: rgba(255,255,255,0.07);
    --border: rgba(255,255,255,0.08);
    --border-hover: rgba(99,179,237,0.4);

    --text-1: #f0f6fc;
    --text-2: #8b949e;
    --text-3: #6e7681;

    --cyan: #38bdf8;
    --purple: #a78bfa;
    --pink: #f472b6;
    --green: #4ade80;

    --grad: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 100%);
    --grad-text: linear-gradient(90deg, var(--cyan), var(--purple));

    --font: 'Inter', sans-serif;
    --mono: 'JetBrains Mono', monospace;

    --radius: 16px;
    --radius-sm: 10px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 24px rgba(0,0,0,0.4);
    --glow-cyan: 0 0 30px rgba(56,189,248,0.3);
    --glow-purple: 0 0 30px rgba(167,139,250,0.3);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text-1);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

/* Noise texture overlay */
.noise {
    position: fixed; inset: 0; z-index: 9999;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Custom cursor - disabled to avoid browser conflicts */
.cursor, .cursor-follower { display: none; }

/* =========================================
   Layout Utilities
   ========================================= */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

.gradient-text {
    background: var(--grad-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--cyan);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

/* =========================================
   Buttons
   ========================================= */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    font-weight: 600; font-size: 0.95rem;
    cursor: pointer; border: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--grad);
    color: #fff;
    box-shadow: 0 4px 20px rgba(56,189,248,0.35);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(56,189,248,0.5);
}

.btn-ghost {
    background: transparent;
    color: var(--text-1);
    border: 1.5px solid var(--border);
}
.btn-ghost:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(56,189,248,0.06);
}

.btn-nav {
    background: transparent;
    color: var(--cyan);
    border: 1.5px solid var(--cyan);
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
    border-radius: 8px;
}
.btn-nav:hover {
    background: rgba(56,189,248,0.1);
}

.btn-full { width: 100%; justify-content: center; }

/* =========================================
   Header
   ========================================= */
header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    transition: var(--transition);
}

header nav {
    display: flex; align-items: center; gap: 2rem;
    height: 70px; padding: 0 2rem;
    max-width: 1200px; margin: 0 auto;
}

header.scrolled {
    background: rgba(8,12,20,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.logo {
    font-family: var(--mono);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-right: auto;
}
.logo-bracket { color: var(--cyan); }

.nav-links {
    display: flex; gap: 2rem;
}
.nav-links a {
    font-size: 0.9rem; font-weight: 500;
    color: var(--text-2);
    position: relative;
}
.nav-links a::after {
    content: ''; position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 1.5px;
    background: var(--grad);
    transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text-1); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.mobile-menu {
    display: none; flex-direction: column;
    gap: 5px; cursor: pointer; padding: 4px;
}
.mobile-menu span {
    display: block; width: 22px; height: 2px;
    background: var(--text-1); border-radius: 2px;
    transition: var(--transition);
}
.mobile-menu.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu.open span:nth-child(2) { opacity: 0; }
.mobile-menu.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

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

.hero-bg {
    position: absolute; inset: 0; z-index: 0; overflow: hidden;
}

.grid-lines {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(56,189,248,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56,189,248,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}

.orb {
    position: absolute; border-radius: 50%;
    filter: blur(100px); opacity: 0.25;
}
.orb-1 { width: 600px; height: 600px; background: var(--cyan); top: -20%; left: -15%; animation: orb-move 15s ease-in-out infinite alternate; }
.orb-2 { width: 400px; height: 400px; background: var(--purple); bottom: -10%; right: -10%; animation: orb-move 18s ease-in-out infinite alternate-reverse; }
.orb-3 { width: 200px; height: 200px; background: var(--pink); top: 50%; left: 50%; animation: orb-move 12s ease-in-out infinite alternate; opacity: 0.15; }

@keyframes orb-move {
    0% { transform: translate(0,0); }
    100% { transform: translate(40px, 40px); }
}

.hero-content {
    position: relative; z-index: 1;
    display: flex; flex-direction: column;
    align-items: center; text-align: center;
    padding: 4rem 2rem;
    max-width: 860px; margin: 0 auto; width: 100%;
}

.hero-badge {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: rgba(74,222,128,0.1);
    border: 1px solid rgba(74,222,128,0.25);
    color: var(--green);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem; font-weight: 500;
    margin-bottom: 1.5rem;
}
.badge-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--green);
    animation: blink 2s ease infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

.hero-title {
    display: flex; flex-direction: column;
    font-size: clamp(4rem, 10vw, 7rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.04em;
    margin-bottom: 1.25rem;
}
.title-line { display: block; }

.hero-role {
    display: flex; align-items: center; gap: 0.75rem;
    font-size: 1.1rem; font-weight: 500;
    color: var(--text-2);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}
.role-divider { color: var(--cyan); font-family: var(--mono); }

.hero-desc {
    font-size: 1.1rem; color: var(--text-2);
    max-width: 560px; margin-bottom: 2rem; line-height: 1.8;
}

.hero-actions {
    display: flex; gap: 1rem;
    margin-bottom: 2rem; flex-wrap: wrap;
    justify-content: center;
}

.hero-socials {
    display: flex; gap: 0.75rem;
    justify-content: center;
}
.hero-socials a {
    width: 38px; height: 38px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-2); font-size: 1rem;
    transition: var(--transition);
}
.hero-socials a:hover {
    background: rgba(56,189,248,0.1);
    border-color: var(--cyan);
    color: var(--cyan);
    transform: translateY(-2px);
}

/* Photo */
.hero-visual {
    display: flex; justify-content: center; align-items: center;
    position: relative;
}

.photo-frame {
    position: relative; width: 380px; height: 380px;
}

.hero-photo {
    width: 100%; height: 100%;
    border-radius: 50%;
    object-fit: cover;
    object-position: top center;
    position: relative; z-index: 2;
    border: 3px solid rgba(56,189,248,0.3);
}

.photo-ring {
    position: absolute; inset: -10px;
    border-radius: 50%;
    border: 2px solid transparent;
    background: var(--grad) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    animation: spin 8s linear infinite;
    z-index: 1;
}
.ring-2 {
    inset: -20px;
    border-width: 1px;
    animation-direction: reverse;
    animation-duration: 12s;
    opacity: 0.4;
}

@keyframes spin { 0%{transform:rotate(0deg)} 100%{transform:rotate(360deg)} }

.photo-glow {
    position: absolute; inset: -30px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(56,189,248,0.15) 0%, transparent 70%);
    z-index: 0;
    animation: pulse-glow 4s ease-in-out infinite alternate;
}
@keyframes pulse-glow { 0%{opacity:0.5; transform:scale(0.95)} 100%{opacity:1; transform:scale(1.05)} }

.floating-card {
    position: absolute;
    display: flex; align-items: center; gap: 0.5rem;
    background: rgba(13,17,23,0.85);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.6rem 1rem;
    font-size: 0.85rem; font-weight: 600;
    white-space: nowrap; z-index: 3;
    box-shadow: var(--shadow);
    animation: float-card 4s ease-in-out infinite alternate;
}
.floating-card i { font-size: 1.1rem; }
.card-1 { top: 5%; left: -10%; animation-delay: 0s; }
.card-2 { bottom: 10%; right: -12%; animation-delay: 1.5s; }
.card-3 { top: 50%; right: -14%; animation-delay: 0.8s; }

@keyframes float-card {
    0% { transform: translateY(0); }
    100% { transform: translateY(-10px); }
}

.scroll-down {
    position: absolute; bottom: 2rem; left: 50%;
    transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
    color: var(--text-3); font-size: 0.75rem; font-family: var(--mono);
    letter-spacing: 1px;
}
.scroll-line {
    width: 1px; height: 40px;
    background: linear-gradient(to bottom, var(--cyan), transparent);
    animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
    0%{height:0;opacity:1} 100%{height:40px;opacity:0}
}

/* =========================================
   About Section
   ========================================= */
.about { padding: 8rem 0; }

.about-grid {
    display: grid; grid-template-columns: 1.2fr 1fr;
    gap: 4rem; align-items: start;
}

.about-text p {
    color: var(--text-2); font-size: 1.05rem;
    margin-bottom: 1.25rem; line-height: 1.85;
}
.about-text strong { color: var(--text-1); }

.about-links {
    display: flex; flex-direction: column; gap: 0.75rem;
    margin-top: 2rem;
}
.about-link {
    display: inline-flex; align-items: center; gap: 0.6rem;
    color: var(--text-2); font-size: 0.9rem;
    font-family: var(--mono);
    transition: var(--transition);
}
.about-link i { color: var(--cyan); width: 16px; }
.about-link:hover { color: var(--cyan); }

.about-cards {
    display: flex; flex-direction: column; gap: 1rem;
}
.info-card {
    display: flex; align-items: flex-start; gap: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    transition: var(--transition);
}
.info-card:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
    transform: translateX(4px);
}
.info-icon {
    width: 42px; height: 42px; min-width: 42px;
    background: rgba(56,189,248,0.1);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    color: var(--cyan); font-size: 1rem;
}
.info-card h4 {
    font-size: 0.85rem; font-weight: 600;
    color: var(--text-2); margin-bottom: 0.2rem;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.info-card p {
    font-size: 1rem; font-weight: 600;
    color: var(--text-1); margin-bottom: 0.15rem;
}
.info-card small { font-size: 0.8rem; color: var(--text-3); }

/* =========================================
   Skills Section
   ========================================= */
.skills {
    padding: 8rem 0;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.skills-wrapper {
    display: flex; flex-direction: column; gap: 2.5rem;
}

.skill-group {}
.group-label {
    display: flex; align-items: center; gap: 0.6rem;
    font-size: 0.8rem; font-weight: 600;
    color: var(--text-2);
    text-transform: uppercase; letter-spacing: 1px;
    font-family: var(--mono);
    margin-bottom: 1rem;
}
.group-label i { color: var(--cyan); font-size: 0.9rem; }

.skill-pills {
    display: flex; flex-wrap: wrap; gap: 0.6rem;
}
.pill {
    display: inline-flex; align-items: center; gap: 0.45rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.45rem 0.9rem;
    font-size: 0.88rem; font-weight: 500;
    color: var(--text-2);
    transition: var(--transition);
    cursor: default;
}
.pill i { font-size: 1rem; }
.pill:hover {
    background: var(--surface-hover);
    border-color: rgba(56,189,248,0.3);
    color: var(--text-1);
    transform: translateY(-1px);
}

/* =========================================
   Projects Section
   ========================================= */
.projects { padding: 8rem 0; }

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: var(--transition);
    display: flex; flex-direction: column;
}
.project-card:hover {
    background: var(--surface-hover);
    border-color: rgba(167,139,250,0.3);
    transform: translateY(-4px);
    box-shadow: var(--glow-purple);
}

.project-card.featured {
    grid-column: 1 / -1;
    border-color: rgba(56,189,248,0.2);
    background: linear-gradient(135deg, rgba(56,189,248,0.04) 0%, rgba(167,139,250,0.04) 100%);
}
.project-card.featured:hover {
    border-color: rgba(56,189,248,0.4);
    box-shadow: var(--glow-cyan);
}

.project-header {
    display: flex; justify-content: space-between;
    align-items: flex-start; margin-bottom: 0.75rem;
}
.project-icon {
    width: 44px; height: 44px;
    background: rgba(56,189,248,0.1);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    color: var(--cyan); font-size: 1.1rem;
}
.project-links { display: flex; gap: 0.75rem; }
.project-links a {
    color: var(--text-3); font-size: 1.1rem;
    transition: var(--transition);
}
.project-links a:hover { color: var(--text-1); }

.featured-badge {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.75rem; font-weight: 500;
    color: var(--cyan);
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.project-title {
    font-size: 1.3rem; font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}
.project-card.featured .project-title { font-size: 1.6rem; }

.project-desc {
    color: var(--text-2); font-size: 0.92rem;
    line-height: 1.75; margin-bottom: 1.25rem;
    flex-grow: 1;
}

.project-highlights {
    display: flex; flex-wrap: wrap; gap: 0.75rem;
    margin-bottom: 1.25rem;
}
.project-highlights span {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-size: 0.8rem; font-weight: 500;
    color: var(--cyan);
    background: rgba(56,189,248,0.08);
    border: 1px solid rgba(56,189,248,0.2);
    border-radius: 6px; padding: 0.3rem 0.75rem;
}

.project-tags {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
}
.project-tags span {
    font-size: 0.78rem; font-weight: 500;
    font-family: var(--mono);
    color: var(--purple);
    background: rgba(167,139,250,0.08);
    border: 1px solid rgba(167,139,250,0.2);
    border-radius: 6px; padding: 0.25rem 0.65rem;
}

/* =========================================
   Contact Section
   ========================================= */
.contact {
    padding: 8rem 0;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
}

.contact-grid {
    display: grid; grid-template-columns: 1fr 1.2fr;
    gap: 4rem; align-items: start;
}

.contact-left h3 {
    font-size: 1.6rem; font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}
.contact-left > p {
    color: var(--text-2); font-size: 1rem;
    line-height: 1.8; margin-bottom: 2rem;
}

.contact-items { display: flex; flex-direction: column; gap: 0.75rem; }
.contact-item {
    display: flex; align-items: center; gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.contact-item:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
}
.ci-icon {
    width: 38px; height: 38px; min-width: 38px;
    background: rgba(56,189,248,0.1);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    color: var(--cyan); font-size: 0.95rem;
}
.ci-label {
    display: block; font-size: 0.75rem;
    color: var(--text-3); font-family: var(--mono);
    margin-bottom: 0.1rem;
}
.ci-value { font-size: 0.9rem; font-weight: 500; color: var(--text-1); }

.contact-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    display: flex; flex-direction: column; gap: 1.2rem;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
    font-size: 0.82rem; font-weight: 500;
    color: var(--text-2); letter-spacing: 0.3px;
}
.form-group input,
.form-group textarea {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text-1);
    font-family: var(--font); font-size: 0.95rem;
    transition: var(--transition);
    resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px rgba(56,189,248,0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-3); }

/* =========================================
   Footer
   ========================================= */
footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border);
}
.footer-inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem; flex-wrap: wrap;
}
.footer-logo {
    font-family: var(--mono); font-size: 1.2rem; font-weight: 700;
}
.footer-copy { color: var(--text-3); font-size: 0.85rem; }
.footer-socials { display: flex; gap: 0.75rem; }
.footer-socials a {
    color: var(--text-3); font-size: 1rem;
    transition: var(--transition);
}
.footer-socials a:hover { color: var(--cyan); }

/* =========================================
   Animations
   ========================================= */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}
.reveal.delay-1 { transition-delay: 0.1s; }
.reveal.delay-2 { transition-delay: 0.2s; }
.reveal.delay-3 { transition-delay: 0.3s; }

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 1024px) {
    .about-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .project-card.featured { grid-column: 1; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed; top: 70px; left: 0; right: 0;
        background: rgba(8,12,20,0.97);
        backdrop-filter: blur(20px);
        flex-direction: column; align-items: center;
        padding: 2rem; gap: 1.5rem;
        border-bottom: 1px solid var(--border);
        transform: translateY(-110%);
        transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
        z-index: 999;
    }
    .nav-links.active { transform: translateY(0); }
    .nav-links a { font-size: 1.1rem; }
    .mobile-menu { display: flex; }
    .btn-nav { display: none; }
    .section-title { font-size: 2rem; }
    .form-row { grid-template-columns: 1fr; }
    .footer-inner { flex-direction: column; text-align: center; }
    .hero-badge { font-size: 0.75rem; }
    .floating-card { display: none; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; }
    .hero-title { font-size: 3rem; }
    .btn { padding: 0.65rem 1.25rem; font-size: 0.9rem; }
    .contact-form { padding: 1.25rem; }
}