/* ============================================
   ANUJ — DATA & AI ENGINEER PORTFOLIO
   Glassmorphism Theme — Frosted Glass UI
   ============================================ */

:root {
    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.2);
    --cyan: #0891b2;
    --cyan-glow: rgba(8, 145, 178, 0.15);
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --glass: rgba(255, 255, 255, 0.7);
    --glass-hover: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(37, 99, 235, 0.12);
    --glass-border-hover: rgba(37, 99, 235, 0.35);
    --glass-blur: blur(16px);
    --glass-blur-heavy: blur(24px);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-dim: #64748b;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-fast: 0.2s ease;
    --transition-mid: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

/* ---- RESET ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; scrollbar-width: thin; scrollbar-color: var(--accent) #e2e8f0; }
body { font-family: var(--font-body); background: var(--bg-primary); color: var(--text-primary); overflow-x: hidden; line-height: 1.6; }
a { text-decoration: none; color: inherit; }

/* ---- FOCUS STATES (Accessibility) ---- */
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.nav-link:focus-visible::after { width: 100%; }
.btn-primary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; box-shadow: 0 8px 32px var(--accent-glow); }
.btn-outline:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-color: var(--accent); }
.contact-channel:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-color: var(--glass-border-hover); }
.project-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.footer-socials a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 50%; }

/* ---- SCREEN READER ONLY ---- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* ---- SKIP LINK ---- */
.skip-link { position: absolute; top: -100%; left: 16px; z-index: 10000; background: var(--accent); color: #fff; padding: 12px 24px; font-family: var(--font-display); font-size: 0.85rem; font-weight: 600; border-radius: 0 0 8px 8px; transition: top 0.2s ease; }
.skip-link:focus { top: 0; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #e2e8f0; }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ---- BACKDROP-FILTER FALLBACK ---- */
@supports not (backdrop-filter: blur(1px)) {
    .about-card, .skill-card, .project-card, .timeline-card,
    .contact-channel, .stat-item, .role-badge, .role-sector,
    .photo-badge, #navbar, .nav-links, .footer {
        background: rgba(255, 255, 255, 0.95) !important;
        border-color: rgba(37, 99, 235, 0.15) !important;
    }
}

/* ---- TEXT SAFETY ON GLASS ---- */
.about-card, .skill-card, .project-card, .timeline-card, .contact-channel {
    background: rgba(255, 255, 255, 0.6);
}

/* ---- BACKGROUND ORBS (Glassmorphism backdrop) ---- */
.bg-orbs { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.bg-orb { position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.25; animation: orbFloat 20s ease-in-out infinite; will-change: transform; contain: strict; }
.bg-orb--1 { width: 600px; height: 600px; background: #93c5fd; top: -10%; left: -10%; animation-delay: 0s; }
.bg-orb--2 { width: 500px; height: 500px; background: #60a5fa; bottom: -15%; right: -10%; animation-delay: -7s; }
.bg-orb--3 { width: 400px; height: 400px; background: #a5f3fc; top: 40%; left: 50%; animation-delay: -14s; }
@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -40px) scale(1.05); }
    66% { transform: translate(-20px, 30px) scale(0.95); }
}

/* ---- PARTICLES ---- */
#particles { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; }

/* ---- LOADER ---- */
#loader { position: fixed; inset: 0; z-index: 9999; background: #ffffff; display: flex; align-items: center; justify-content: center; transition: opacity 0.5s ease, visibility 0.5s ease; }
#loader.hidden { opacity: 0; visibility: hidden; }
.loader-content { text-align: center; }
.loader-icon { width: 60px; height: 60px; margin: 0 auto 24px; position: relative; }
.loader-icon .dot { position: absolute; width: 10px; height: 10px; background: var(--accent); border-radius: 50%; animation: loaderDot 1.2s ease infinite; }
.loader-icon .dot:nth-child(1) { top: 0; left: 25px; animation-delay: 0s; }
.loader-icon .dot:nth-child(2) { top: 25px; right: 0; animation-delay: 0.2s; }
.loader-icon .dot:nth-child(3) { bottom: 0; left: 25px; animation-delay: 0.4s; }
.loader-icon .dot:nth-child(4) { top: 25px; left: 0; animation-delay: 0.6s; }
@keyframes loaderDot { 0%, 100% { opacity: 0.3; transform: scale(0.8); } 50% { opacity: 1; transform: scale(1.2); } }
.loader-text { font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 4px; color: var(--text-secondary); margin-bottom: 16px; }
.loader-bar { width: 200px; height: 3px; background: rgba(255,255,255,0.08); border-radius: 3px; overflow: hidden; margin: 0 auto; }
.loader-bar-fill { height: 100%; width: 100%; background: linear-gradient(90deg, #2563eb, #0891b2); border-radius: 3px; animation: loadBar 1.3s ease forwards; transform-origin: left; }
@keyframes loadBar { 0% { transform: scaleX(0); } 50% { transform: scaleX(0.6); } 100% { transform: scaleX(1); } }

/* ---- NAVBAR (Glass) ---- */
#navbar { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(255, 255, 255, 0.7); backdrop-filter: var(--glass-blur-heavy); -webkit-backdrop-filter: var(--glass-blur-heavy); border-bottom: 1px solid var(--glass-border); transition: all var(--transition-fast); }
#navbar.scrolled { background: rgba(255, 255, 255, 0.9); box-shadow: 0 4px 24px rgba(37, 99, 235, 0.08); }
.nav-inner { max-width: 1400px; margin: 0 auto; padding: 0 40px; height: 70px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-avatar { width: 36px; height: 36px; border-radius: 50%; border: 2px solid var(--accent); object-fit: cover; box-shadow: 0 0 12px var(--accent-glow); }
.logo-text { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; letter-spacing: 0.5px; background: linear-gradient(135deg, #0f172a, #2563eb); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; gap: 32px; }
.nav-link { font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 1px; color: var(--text-secondary); transition: color var(--transition-fast); position: relative; padding: 4px 0; font-weight: 500; }
.nav-link::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--accent); transition: width var(--transition-mid); border-radius: 1px; }
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-accent-line { height: 1px; background: linear-gradient(90deg, transparent, var(--accent-glow), transparent); opacity: 0; transition: opacity var(--transition-fast); }
#navbar.scrolled .nav-accent-line { opacity: 1; }

.nav-socials { display: flex; align-items: center; gap: 4px; margin-left: 24px; }
.nav-social-link { color: var(--text-secondary); font-size: 1.1rem; transition: all var(--transition-fast); padding: 8px; border-radius: 8px; }
.nav-social-link:hover { color: var(--accent); background: var(--glass); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 12px; min-width: 44px; min-height: 44px; align-items: center; justify-content: center; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text-primary); transition: all var(--transition-fast); border-radius: 1px; }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---- HERO ---- */
.hero { min-height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden; padding: 100px 40px 60px; }
.hero-bg-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px); background-size: 60px 60px; z-index: 0; }
.hero-content { max-width: 1400px; margin: 0 auto; width: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 2; }
.hero-left { z-index: 2; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 3px; color: var(--cyan); margin-bottom: 16px; animation: fadeInUp 0.8s ease 0.3s both; }
.tag-dot { width: 8px; height: 8px; background: var(--cyan); border-radius: 50%; animation: pulse 2s ease infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--cyan-glow); } 50% { opacity: 0.7; box-shadow: 0 0 0 10px transparent; } }
.hero-greeting { font-family: var(--font-display); font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 8px; animation: fadeInUp 0.8s ease 0.35s both; font-weight: 400; }
.hero-name { animation: fadeInUp 0.8s ease 0.4s both; }
.name-last { display: block; font-family: var(--font-display); font-size: 4.5rem; font-weight: 700; letter-spacing: -1px; line-height: 1.1; background: linear-gradient(135deg, #0f172a 0%, #2563eb 60%, #0891b2 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-role { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 20px 0; animation: fadeInUp 0.8s ease 0.5s both; }
.role-badge { background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--accent); padding: 6px 16px; font-family: var(--font-display); font-size: 0.75rem; font-weight: 600; letter-spacing: 1px; border-radius: 20px; color: var(--accent); }
.role-sector { background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); padding: 6px 16px; font-family: var(--font-display); font-size: 0.7rem; letter-spacing: 1px; color: var(--text-secondary); border-radius: 20px; }
.role-flag { display: flex; align-items: center; gap: 6px; font-family: var(--font-display); font-size: 0.7rem; letter-spacing: 1px; color: var(--text-secondary); }
.flag-img { height: 14px; border-radius: 2px; }
.hero-desc { color: var(--text-secondary); font-size: 1.05rem; max-width: 500px; margin-bottom: 32px; animation: fadeInUp 0.8s ease 0.6s both; line-height: 1.7; }

/* Glass stat cards */
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 36px; animation: fadeInUp 0.8s ease 0.7s both; }
.stat-item { text-align: center; padding: 18px 8px; background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: 16px; transition: all var(--transition-fast); }
.stat-item:hover { border-color: var(--glass-border-hover); box-shadow: 0 8px 32px var(--accent-glow); background: var(--glass-hover); }
.stat-value { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; color: var(--accent); }
.stat-label { font-family: var(--font-display); font-size: 0.6rem; letter-spacing: 1px; color: var(--text-dim); margin-top: 4px; }

.hero-cta { display: flex; gap: 16px; animation: fadeInUp 0.8s ease 0.8s both; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, var(--accent-dark), var(--accent)); color: white; padding: 14px 32px; font-family: var(--font-display); font-size: 0.8rem; font-weight: 600; letter-spacing: 1px; border: none; cursor: pointer; transition: all var(--transition-fast); position: relative; overflow: hidden; border-radius: 12px; box-shadow: 0 4px 20px var(--accent-glow); }
.btn-primary::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent); transform: translateX(-100%); transition: transform 0.5s ease; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px var(--accent-glow); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px var(--accent-glow); }
.btn-primary:hover::before { transform: translateX(100%); }
.btn-outline { display: inline-flex; align-items: center; gap: 8px; background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); color: var(--text-primary); padding: 14px 32px; font-family: var(--font-display); font-size: 0.8rem; font-weight: 600; letter-spacing: 1px; border: 1px solid var(--glass-border); cursor: pointer; transition: all var(--transition-fast); border-radius: 12px; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); box-shadow: 0 8px 32px var(--accent-glow); background: var(--glass-hover); }
.btn-outline:active { transform: scale(0.98); }

/* ---- PHOTO DISPLAY ---- */
.hero-right { display: flex; justify-content: center; align-items: center; animation: fadeIn 1s ease 0.5s both; }
.photo-container { position: relative; width: 360px; height: 360px; }
.photo-glow { position: absolute; inset: -40px; border-radius: 50%; background: radial-gradient(circle, var(--accent-glow) 0%, rgba(6, 182, 212, 0.15) 50%, transparent 70%); opacity: 0.5; animation: glowPulse 4s ease infinite; z-index: 0; }
@keyframes glowPulse { 0%, 100% { transform: scale(1); opacity: 0.5; } 50% { transform: scale(1.08); opacity: 0.7; } }
.photo-ring { position: absolute; inset: -15px; border: 1px solid var(--accent); border-radius: 50%; opacity: 0.25; animation: ringRotate 30s linear infinite; will-change: transform; }
.photo-ring::before { content: ''; position: absolute; top: -4px; left: 50%; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; transform: translateX(-50%); box-shadow: 0 0 12px var(--accent-glow); }
@keyframes ringRotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.photo-frame { position: relative; width: 100%; height: 100%; border-radius: 50%; overflow: hidden; border: 2px solid var(--glass-border-hover); box-shadow: 0 0 60px var(--accent-glow); z-index: 1; background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); }
.photo-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-mid); }
.photo-container:hover .photo-frame img { transform: scale(1.05); }
.photo-container:hover .photo-glow { opacity: 0.8; }
.photo-container:hover .photo-ring { opacity: 0.5; }
.photo-badge { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 2; background: var(--glass); backdrop-filter: var(--glass-blur-heavy); -webkit-backdrop-filter: var(--glass-blur-heavy); border: 1px solid var(--glass-border); padding: 8px 20px; border-radius: 20px; font-family: var(--font-display); font-size: 0.7rem; letter-spacing: 2px; color: var(--cyan); opacity: 0; transition: all var(--transition-mid); white-space: nowrap; }
.photo-container:hover .photo-badge { opacity: 1; bottom: 30px; }

.scroll-indicator { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; z-index: 2; }
.scroll-line { width: 1px; height: 40px; background: linear-gradient(to bottom, var(--accent), transparent); animation: scrollLine 2s ease infinite; will-change: transform; }
@keyframes scrollLine { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }
.scroll-indicator span { font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 4px; color: var(--text-dim); }

/* ---- SECTIONS COMMON ---- */
.section { padding: 100px 40px; max-width: 1400px; margin: 0 auto; position: relative; z-index: 2; contain: content; }
.section-header { display: flex; align-items: center; gap: 20px; margin-bottom: 60px; }
.section-number { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--accent); opacity: 0.5; }
.section-title { font-family: var(--font-display); font-size: 2rem; font-weight: 700; letter-spacing: 1px; }
.section-line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--glass-border), transparent); }

/* ---- ABOUT ---- */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 30px; }
.about-card { background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: 20px; padding: 36px; transition: all var(--transition-fast); }
.about-card:hover { border-color: var(--glass-border-hover); box-shadow: 0 8px 40px rgba(37, 99, 235, 0.08); background: var(--glass-hover); }
.card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.card-header i { color: var(--accent); font-size: 1.2rem; }
.card-header h3 { font-family: var(--font-display); font-size: 0.9rem; letter-spacing: 1px; font-weight: 600; }
.about-bio p { color: var(--text-secondary); margin-bottom: 14px; font-size: 0.95rem; }
.about-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.about-tag { background: rgba(37, 99, 235, 0.08); border: 1px solid rgba(37, 99, 235, 0.2); padding: 6px 14px; font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 1px; color: var(--accent); transition: all var(--transition-fast); border-radius: 20px; }
.about-tag:hover { border-color: var(--accent); background: rgba(37, 99, 235, 0.15); }
.detail-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid rgba(37, 99, 235, 0.08); }
.detail-label { font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 2px; color: var(--text-dim); }
.detail-value { font-size: 0.9rem; color: var(--text-primary); font-weight: 600; }
.status-active { display: flex; align-items: center; gap: 8px; color: var(--cyan); }
.status-dot { width: 8px; height: 8px; background: var(--cyan); border-radius: 50%; display: inline-block; animation: pulse 2s ease infinite; }
.cert-badges { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.cert-badge { display: flex; align-items: center; gap: 8px; background: rgba(37, 99, 235, 0.06); border: 1px solid rgba(37, 99, 235, 0.2); padding: 8px 16px; border-radius: 12px; font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 1px; }
.cert-badge i { color: var(--accent); }

/* ---- SKILLS ---- */
.skills-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.skill-card { background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: 20px; padding: 32px; transition: border-color var(--transition-fast), transform var(--transition-mid), box-shadow var(--transition-fast), background var(--transition-fast); contain: layout style; }
.skill-card:hover { border-color: var(--glass-border-hover); box-shadow: 0 8px 40px rgba(37, 99, 235, 0.1); transform: translateY(-4px); background: var(--glass-hover); will-change: transform, box-shadow; }
.skill-card-header { margin-bottom: 20px; }
.skill-icon { margin-bottom: 12px; width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; border-radius: 14px; background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(8, 145, 178, 0.08)); border: 1px solid rgba(37, 99, 235, 0.15); }
.skill-icon i { font-size: 1.3rem; color: var(--accent); }
.skill-card-header h3 { font-family: var(--font-display); font-size: 1.1rem; letter-spacing: 1px; font-weight: 700; color: var(--accent); }
.skill-sub { font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 1px; color: var(--text-dim); }
.skill-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.skill-tag { background: rgba(37, 99, 235, 0.04); border: 1px solid var(--glass-border); padding: 8px 16px; font-family: var(--font-display); font-size: 0.7rem; letter-spacing: 1px; color: var(--text-secondary); border-radius: 12px; transition: all var(--transition-fast); }
.skill-tag:hover { border-color: var(--glass-border-hover); color: var(--text-primary); background: rgba(37, 99, 235, 0.08); }
.skill-tag.primary { border-color: rgba(37, 99, 235, 0.3); color: var(--accent); background: rgba(37, 99, 235, 0.08); font-weight: 600; }

/* ---- PROJECTS ---- */
.projects-subtitle { font-family: var(--font-display); font-size: 0.8rem; letter-spacing: 3px; text-transform: uppercase; color: var(--accent); margin-bottom: 24px; padding-bottom: 12px; border-bottom: 1px solid var(--glass-border); }
.projects-subtitle:not(:first-of-type) { margin-top: 50px; }
.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.project-card { background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: 20px; padding: 32px 32px 48px; position: relative; overflow: hidden; transition: border-color var(--transition-fast), transform var(--transition-mid), box-shadow var(--transition-fast), background var(--transition-fast); contain: layout style; }
.project-card:hover { border-color: var(--glass-border-hover); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(37, 99, 235, 0.1); background: var(--glass-hover); will-change: transform, box-shadow; }
.project-position { position: absolute; top: 16px; right: 20px; font-family: var(--font-display); font-size: 2.5rem; font-weight: 700; color: var(--accent); opacity: 0.06; line-height: 1; }
.project-flag-stripe { position: absolute; top: 0; left: 0; width: 3px; height: 0%; background: linear-gradient(to bottom, var(--accent), var(--cyan)); transition: height var(--transition-mid); border-radius: 20px 0 0 0; }
.project-card:hover .project-flag-stripe { height: 100%; }
.project-title { font-family: var(--font-display); font-size: 1rem; letter-spacing: 0.5px; font-weight: 600; margin-bottom: 12px; }
.project-desc { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 16px; line-height: 1.6; }
.project-tech { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.project-tech span { background: rgba(37, 99, 235, 0.04); border: 1px solid var(--glass-border); padding: 4px 10px; font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 1px; color: var(--text-secondary); border-radius: 8px; }
.project-links { display: flex; gap: 12px; }
.project-link { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-display); font-size: 0.7rem; letter-spacing: 1px; color: var(--accent); transition: all var(--transition-fast); }
.project-link:hover { color: var(--text-primary); }
.project-private { color: var(--text-dim); cursor: default; }
.project-time { position: absolute; bottom: 16px; right: 20px; font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 1px; color: var(--text-dim); }

/* ---- EXPERIENCE / TIMELINE ---- */
.timeline { position: relative; padding-left: 40px; }
.timeline::before { content: ''; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--accent), rgba(37, 99, 235, 0.2), transparent); }
.timeline-item { position: relative; margin-bottom: 40px; }
.timeline-dot { position: absolute; left: -40px; top: 24px; width: 18px; height: 18px; background: #ffffff; border: 3px solid var(--accent); border-radius: 50%; z-index: 1; box-shadow: 0 0 20px var(--accent-glow); }
.timeline-card { background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: 20px; padding: 32px; transition: all var(--transition-fast); }
.timeline-card:hover { border-color: var(--glass-border-hover); box-shadow: 0 8px 40px rgba(37, 99, 235, 0.08); background: var(--glass-hover); }
.timeline-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; }
.timeline-header h3 { font-family: var(--font-display); font-size: 1rem; letter-spacing: 1px; font-weight: 600; }
.timeline-company { color: var(--accent); font-size: 0.9rem; font-weight: 600; }
.timeline-date { font-family: var(--font-display); font-size: 0.7rem; letter-spacing: 1px; color: var(--text-dim); white-space: nowrap; }
.timeline-details { list-style: none; margin-bottom: 16px; }
.timeline-details li { color: var(--text-secondary); font-size: 0.9rem; padding: 6px 0 6px 16px; position: relative; }
.timeline-details li::before { content: '>'; position: absolute; left: 0; color: var(--accent); font-weight: bold; }
.timeline-tech { display: flex; flex-wrap: wrap; gap: 6px; }
.timeline-tech span { background: rgba(37, 99, 235, 0.04); border: 1px solid var(--glass-border); padding: 4px 10px; font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 1px; color: var(--text-secondary); border-radius: 8px; }

/* ---- CONNECT ---- */
.connect-center { text-align: center; max-width: 900px; margin: 0 auto; }
.connect-heading { font-family: var(--font-display); font-size: 1.5rem; letter-spacing: 1px; font-weight: 700; margin-bottom: 16px; }
.connect-desc { color: var(--text-secondary); margin-bottom: 40px; font-size: 1rem; }
.connect-channels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
.connect-channels-bottom { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 580px; margin: 20px auto 0; }
.contact-channel { display: flex; align-items: center; gap: 16px; padding: 16px 20px; background: var(--glass); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: 16px; transition: all var(--transition-fast); text-align: left; }
.contact-channel:hover { border-color: var(--glass-border-hover); transform: translateY(-3px); box-shadow: 0 8px 32px rgba(37, 99, 235, 0.08); background: var(--glass-hover); }
.contact-channel i { font-size: 1.4rem; color: var(--accent); width: 24px; text-align: center; flex-shrink: 0; }
.channel-label { display: block; font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 2px; color: var(--text-dim); }
.channel-value { font-size: 0.9rem; font-weight: 600; }

/* ---- FOOTER (Glass) ---- */
.footer { background: rgba(255, 255, 255, 0.6); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border-top: 1px solid var(--glass-border); padding: 24px 40px; position: relative; z-index: 2; }
.footer-inner { max-width: 1400px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.footer-logo { display: flex; align-items: center; gap: 10px; }
.footer-text p { color: var(--text-dim); font-size: 0.85rem; }
.footer-socials { display: flex; gap: 16px; }
.footer-socials a { color: var(--text-secondary); font-size: 1.2rem; transition: all var(--transition-fast); padding: 8px; }
.footer-socials a:hover { color: var(--accent); transform: scale(1.2); }
.footer-line { display: none; }
.footer-bottom { max-width: 1400px; margin: 0 auto; text-align: center; font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 3px; color: var(--text-dim); }

/* ---- ANIMATIONS ---- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.reveal.visible { opacity: 1; transform: translateY(0); will-change: auto; }

/* ---- PREFERS REDUCED MOTION ---- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
    html { scroll-behavior: auto; }
    #loader { display: none !important; }
    .reveal { opacity: 1 !important; transform: none !important; }
    #particles { display: none; }
    .bg-orb { animation: none; opacity: 0.2; }
    .photo-ring, .photo-glow { animation: none; }
    .scroll-indicator { display: none; }
    .hero-tag, .hero-greeting, .hero-name, .hero-role, .hero-desc, .hero-stats, .hero-cta, .hero-right { animation: none; opacity: 1; transform: none; }
    .project-card:hover, .skill-card:hover { transform: none; }
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-left { order: 2; }
    .hero-right { order: 1; }
    .hero-role { justify-content: center; }
    .hero-desc { margin: 0 auto 32px; }
    .hero-cta { justify-content: center; }
    .hero-stats { grid-template-columns: repeat(4, 1fr); }
    .name-last { font-size: 3rem; }
    .photo-container { width: 280px; height: 280px; }
    .about-grid { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .connect-channels { grid-template-columns: 1fr; }
    .connect-channels-bottom { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .hero { padding: 100px 20px 60px; }
    .section { padding: 60px 20px; }
    .nav-inner { padding: 0 20px; }
    .nav-links { display: none; position: absolute; top: 70px; left: 0; width: 100%; background: rgba(255, 255, 255, 0.95); backdrop-filter: var(--glass-blur-heavy); flex-direction: column; padding: 20px; gap: 0; border-bottom: 1px solid var(--glass-border); max-height: calc(100vh - 70px); overflow-y: auto; }
    .nav-links.open { display: flex; }
    .nav-links .nav-link { padding: 14px 16px; display: block; width: 100%; }
    .nav-toggle { display: flex; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .hero-greeting { display: none; }
    .name-last { font-size: 2.2rem; }
    .section-title { font-size: 1.2rem; letter-spacing: 1px; }
    .section-header { flex-wrap: wrap; }
    .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
    .photo-container { width: 220px; height: 220px; }
    .bg-orb { opacity: 0.15; filter: blur(80px); animation: none; }
    .photo-glow, .photo-ring { animation: none; }

    /* Reduce glass blur for mobile GPU performance */
    #navbar { backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
    .about-card, .skill-card, .project-card, .timeline-card,
    .contact-channel, .stat-item {
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }

    /* Timeline mobile fix */
    .timeline { padding-left: 28px; }
    .timeline::before { left: 4px; }
    .timeline-dot { left: -28px; width: 14px; height: 14px; border-width: 2px; }
    .timeline-card { padding: 24px 20px; }
    .timeline-header { flex-direction: column; gap: 8px; }
}

@media (max-width: 480px) {
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-value { font-size: 1.4rem; }
    .stat-label { font-size: 0.55rem; letter-spacing: 0.5px; }
    .stat-item { padding: 14px 6px; }

    .hero-cta { flex-direction: column; align-items: center; gap: 12px; }
    .btn-primary, .btn-outline { width: 100%; justify-content: center; padding: 14px 24px; }

    .section-header { flex-direction: column; align-items: flex-start; gap: 8px; }
    .section-line { width: 60px; flex: none; }

    .photo-container { width: 180px; height: 180px; }
}

/* ============================================
   MUSIC TOGGLE — Hero button with sound bars
   ============================================ */
.music-toggle-hero {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 30px;
    border: 1px solid var(--glass-border);
    background: var(--glass);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    color: var(--text-secondary);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.music-toggle-hero:hover {
    border-color: var(--glass-border-hover);
    color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.music-toggle-hero.playing {
    border-color: var(--accent);
    color: var(--accent);
}

.sound-bars {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 16px;
}

.sound-bars .bar {
    display: block;
    width: 3px;
    height: 4px;
    background: currentColor;
    border-radius: 2px;
    transition: height 0.2s ease;
}

/* Static bars when paused */
.sound-bars .bar:nth-child(1) { height: 6px; }
.sound-bars .bar:nth-child(2) { height: 4px; }
.sound-bars .bar:nth-child(3) { height: 8px; }
.sound-bars .bar:nth-child(4) { height: 5px; }
.sound-bars .bar:nth-child(5) { height: 3px; }

/* Animated bars when playing */
.music-toggle-hero.playing .sound-bars .bar {
    animation: soundBar 0.8s ease-in-out infinite alternate;
}

.music-toggle-hero.playing .sound-bars .bar:nth-child(1) { animation-delay: 0s; }
.music-toggle-hero.playing .sound-bars .bar:nth-child(2) { animation-delay: 0.15s; }
.music-toggle-hero.playing .sound-bars .bar:nth-child(3) { animation-delay: 0.3s; }
.music-toggle-hero.playing .sound-bars .bar:nth-child(4) { animation-delay: 0.45s; }
.music-toggle-hero.playing .sound-bars .bar:nth-child(5) { animation-delay: 0.6s; }

@keyframes soundBar {
    0% { height: 4px; }
    100% { height: 16px; }
}