/* ============================
   ROOT VARIABLES - THEMES
   ============================ */
:root {
  --bg: #030712; --bg-secondary: #0b1120; --bg-card: rgba(15, 23, 42, 0.6);
  --border: rgba(255, 255, 255, 0.08); --text: #e2e8f0; --text-muted: #94a3b8;
  --text-heading: #f8fafc; --primary: #3b82f6; --primary-glow: rgba(59, 130, 246, 0.25);
  --accent: #06b6d4; --green: #22c55e; --gold: #d4af37;
  --gradient: linear-gradient(135deg, #3b82f6, #06b6d4);
  --gradient-text: linear-gradient(90deg, #3b82f6, #ec4899, #8b5cf6);
  --radius: 16px; --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --max-w: 1120px; --font-body: 'Inter', system-ui, sans-serif;
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --hero-orb-1: rgba(59, 130, 246, 0.15); --hero-orb-2: rgba(6, 182, 212, 0.1);
  --hero-orb-3: rgba(139, 92, 246, 0.08);
}

[data-theme="light"] {
  --bg: #f8fafc; --bg-secondary: #f1f5f9; --bg-card: rgba(255, 255, 255, 0.8);
  --border: rgba(0, 0, 0, 0.08); --text: #1e293b; --text-muted: #64748b;
  --text-heading: #0f172a; --primary: #2563eb; --primary-glow: rgba(37, 99, 235, 0.2);
  --accent: #0891b2; --green: #16a34a; --gold: #b8860b;
  --gradient: linear-gradient(135deg, #2563eb, #0891b2);
  --gradient-text: linear-gradient(90deg, #2563eb, #db2777, #7c3aed);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --hero-orb-1: rgba(37, 99, 235, 0.1); --hero-orb-2: rgba(8, 145, 178, 0.08);
  --hero-orb-3: rgba(124, 58, 237, 0.06);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-tap-highlight-color: transparent; }
body {
  font-family: var(--font-body); background: var(--bg); color: var(--text);
  line-height: 1.6; overflow-x: hidden; position: relative;
  transition: background-color 0.3s ease, color 0.3s ease;
}
body::before {
  content: ''; position: fixed; inset: 0;
  background: radial-gradient(circle at 15% 50%, var(--hero-orb-1), transparent 50%),
              radial-gradient(circle at 85% 30%, var(--hero-orb-2), transparent 50%),
              radial-gradient(circle at 50% 80%, var(--hero-orb-3), transparent 50%);
  z-index: -2; animation: meshMove 20s ease-in-out infinite alternate;
}
@keyframes meshMove { 0% { transform: scale(1) rotate(0deg); } 100% { transform: scale(1.1) rotate(2deg); } }
body::after {
  content: ''; position: fixed; inset: 0;
  background-image: url("image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  z-index: -1; pointer-events: none;
}a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; background: var(--gradient); width: 0%; z-index: 1000; transition: width 0.1s linear; }
#loader { position: fixed; inset: 0; z-index: 9999; background: var(--bg); display: flex; align-items: center; justify-content: center; transition: opacity 0.5s ease, visibility 0.5s ease; }
#loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-content { text-align: center; }
.spinner { width: 48px; height: 48px; border: 3px solid rgba(255,255,255,0.1); border-top-color: var(--primary); border-radius: 50%; animation: spin 1s linear infinite; margin: 0 auto 1.5rem; }
@keyframes spin { to { transform: rotate(360deg); } }
.loader-text { font-size: clamp(1.2rem, 3vw, 1.5rem); font-weight: 600; font-family: var(--font-heading); }
.loader-sub { color: var(--text-muted); font-size: 0.9rem; margin-top: 0.5rem; }

.navbar { position: fixed; top: 0; left: 0; width: 100%; z-index: 100; background: rgba(3, 7, 18, 0.7); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); transition: var(--transition); }
.nav-container { max-width: var(--max-w); margin: auto; display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.5rem; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--text-heading); font-family: var(--font-heading); }
.logo-accent { color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 1rem; }
.theme-toggle { position: relative; width: 60px; height: 32px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 999px; cursor: pointer; display: flex; align-items: center; justify-content: space-between; padding: 0 8px; transition: var(--transition); overflow: hidden; }
.theme-toggle i { font-size: 0.9rem; z-index: 2; transition: var(--transition); }
.theme-toggle .fa-sun { color: #fbbf24; }
.theme-toggle .fa-moon { color: var(--primary); }
.theme-toggle-bg { position: absolute; width: 26px; height: 26px; background: var(--gradient); border-radius: 50%; top: 2px; left: 3px; transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
[data-theme="light"] .theme-toggle-bg { transform: translateX(28px); }
#menuToggle { background: none; border: none; cursor: pointer; display: flex; flex-direction: column; gap: 5px; padding: 6px; }
#menuToggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 4px; transition: var(--transition); }

.sidebar { position: fixed; top: 0; right: -300px; width: 280px; height: 100%; background: var(--bg-card); backdrop-filter: blur(16px); z-index: 200; padding: 2rem 1.5rem; transition: right 0.35s ease; display: flex; flex-direction: column; border-left: 1px solid var(--border); }
.sidebar.open { right: 0; }
#menuClose { align-self: flex-end; background: none; border: none; color: var(--text); font-size: 1.8rem; cursor: pointer; }
.sidebar ul { margin-top: 2rem; }
.sidebar ul li a { display: block; padding: 0.8rem 1rem; color: var(--text-muted); font-weight: 500; border-radius: 10px; transition: var(--transition); margin-bottom: 0.25rem; }
.sidebar ul li a:hover, .sidebar ul li a.active { background: rgba(59, 130, 246, 0.15); color: var(--text-heading); }
.overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 150; opacity: 0; visibility: hidden; transition: var(--transition); }
.overlay.show { opacity: 1; visibility: visible; }

.container { max-width: var(--max-w); margin: auto; padding: 0 1.5rem; }
.section { padding: clamp(3rem, 8vw, 6rem) 0; }
.section-title { font-size: clamp(1.8rem, 4vw, 2.4rem); font-weight: 700; margin-bottom: 0.5rem; font-family: var(--font-heading); color: var(--text-heading); }
.edu-icon { margin-right: 0.5rem; font-size: 0.8em; }
.section-sub { color: var(--text-muted); max-width: 600px; margin-bottom: 2rem; font-size: 1.05rem; }
.subsection-title { font-size: 1.3rem; margin: 2.5rem 0 1.5rem; font-family: var(--font-heading); color: var(--text-heading); }
.highlight { color: var(--primary); } .highlight-blue { color: var(--primary); } .highlight-green { color: var(--green); }
.gradient-text { background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.glass-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.8rem; transition: var(--transition); backdrop-filter: blur(12px); }
.glass-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(59, 130, 246, 0.25); }
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 1.2rem 0; }
.skill-tags span { background: rgba(255,255,255,0.06); padding: 0.4rem 0.9rem; border-radius: 999px; font-size: 0.8rem; color: var(--text-muted); border: 1px solid var(--border); transition: var(--transition); }
.skill-tags span:hover { background: rgba(59, 130, 246, 0.15); border-color: var(--primary); color: var(--text-heading); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.75rem 1.6rem; border-radius: 999px; font-weight: 600; font-size: 0.9rem; cursor: pointer; transition: var(--transition); text-align: center; border: none; font-family: var(--font-body); }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5); }
.btn-outline { background: transparent; border: 1.5px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-ghost { background: transparent; border: 1.5px solid var(--border); color: var(--text-muted); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); background: rgba(59, 130, 246, 0.1); }
.btn-lg { padding: 1rem 2rem; font-size: 1rem; } .btn-sm { padding: 0.5rem 1.2rem; font-size: 0.85rem; } .btn-full { width: 100%; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin-top: 2rem; }

.hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 8rem 1.5rem 4rem; position: relative; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.6; animation: orbFloat 8s ease-in-out infinite; }
.orb-1 { width: 400px; height: 400px; background: var(--hero-orb-1); top: -100px; left: -100px; }
.orb-2 { width: 300px; height: 300px; background: var(--hero-orb-2); bottom: -50px; right: -50px; animation-delay: 2s; }
.orb-3 { width: 250px; height: 250px; background: var(--hero-orb-3); top: 50%; left: 50%; animation-delay: 4s; }
@keyframes orbFloat { 0%, 100% { transform: translate(0, 0) scale(1); } 33% { transform: translate(30px, -30px) scale(1.1); } 66% { transform: translate(-20px, 20px) scale(0.9); } }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px); background-size: 50px 50px; mask-image: radial-gradient(circle at center, black 40%, transparent 100%); }
.hero-container { max-width: 900px; text-align: center; position: relative; z-index: 1; }
.profile-wrapper { position: relative; display: inline-block; margin-bottom: 2rem; }
.profile-circle { width: clamp(180px, 25vw, 220px); height: clamp(180px, 25vw, 220px); border-radius: 50%; margin: 0 auto; background: var(--gradient); padding: 4px; position: relative; animation: profileGlow 3s ease-in-out infinite; }
@keyframes profileGlow { 0%, 100% { box-shadow: 0 0 0 0 var(--primary-glow), 0 0 60px rgba(59, 130, 246, 0.3); } 50% { box-shadow: 0 0 0 20px transparent, 0 0 80px rgba(59, 130, 246, 0.5); } }
.profile-ring { position: absolute; inset: -10px; border-radius: 50%; border: 2px dashed var(--primary); opacity: 0.3; animation: ringRotate 20s linear infinite; }
@keyframes ringRotate { to { transform: rotate(360deg); } }
.profile-circle img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; border: 4px solid var(--bg); }
.profile-badge { position: absolute; bottom: 10px; right: 10px; background: var(--green); color: #fff; padding: 0.4rem 0.8rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; display: flex; align-items: center; gap: 0.3rem; box-shadow: 0 4px 12px rgba(34, 197, 94, 0.4); animation: badgePulse 2s ease-in-out infinite; }
@keyframes badgePulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }
.profile-badge i { font-size: 0.7rem; }
.hero-content { margin-bottom: 1.5rem; }
.hero-greeting { display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(59, 130, 246, 0.1); padding: 0.5rem 1rem; border-radius: 999px; font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1.5rem; border: 1px solid var(--border); }
.greeting-wave { animation: wave 2s ease-in-out infinite; display: inline-block; }
@keyframes wave { 0%, 100% { transform: rotate(0deg); } 25% { transform: rotate(15deg); } 75% { transform: rotate(-15deg); } }
.hero-name { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 700; line-height: 1.1; margin-bottom: 1rem; font-family: var(--font-heading); color: var(--text-heading); }
.name-line { display: block; opacity: 0; transform: translateY(30px); animation: fadeInUp 0.8s ease forwards; }
.name-line:nth-child(2) { animation-delay: 0.2s; }
.name-accent { background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
@keyframes fadeInUp { to { opacity: 1; transform: translateY(0); } }
.hero-title-wrapper { margin-bottom: 1.5rem; min-height: 60px; }
.hero-title { font-size: clamp(1.3rem, 3vw, 1.8rem); font-weight: 600; color: var(--text); font-family: var(--font-heading); }
.title-highlight { color: var(--primary); position: relative; }
.cursor { display: inline-block; width: 3px; background: var(--primary); animation: blink 1s infinite; margin-left: 2px; }
@keyframes blink { 0%, 50% { opacity: 1; } 51%, 100% { opacity: 0; } }
.hero-desc { color: var(--text-muted); font-size: 1.1rem; max-width: 650px; margin: 0 auto 2rem; line-height: 1.7; }
.hero-stats { display: flex; align-items: center; justify-content: center; gap: 2rem; margin: 2.5rem 0; padding: 1.5rem 2rem; background: rgba(255,255,255,0.03); border-radius: var(--radius); border: 1px solid var(--border); backdrop-filter: blur(10px); }
.stat-item { text-align: center; }
.stat-number { font-size: 2.5rem; font-weight: 700; color: var(--primary); font-family: var(--font-heading); line-height: 1; }
.stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.3rem; }
.stat-divider { width: 1px; height: 50px; background: var(--border); }.hero-btns { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; margin: 2rem 0; }
.hero-social { margin-top: 2.5rem; }
.social-label { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1rem; }
.social-icons-pro { display: flex; align-items: center; justify-content: center; gap: 0.8rem; flex-wrap: wrap; }
.social-link-pro { position: relative; width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; color: var(--text-muted); font-size: 1.2rem; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); overflow: hidden; }
.social-link-pro::before { content: ''; position: absolute; inset: 0; background: var(--gradient); opacity: 0; transition: opacity 0.3s ease; z-index: 0; }
.social-link-pro i { position: relative; z-index: 1; transition: transform 0.3s ease; }
.social-tooltip { position: absolute; bottom: -35px; left: 50%; transform: translateX(-50%); background: var(--bg-card); color: var(--text); padding: 0.4rem 0.8rem; border-radius: 6px; font-size: 0.75rem; white-space: nowrap; opacity: 0; visibility: hidden; transition: all 0.3s ease; border: 1px solid var(--border); z-index: 10; }
.social-tooltip::before { content: ''; position: absolute; top: -4px; left: 50%; transform: translateX(-50%); border-left: 5px solid transparent; border-right: 5px solid transparent; border-bottom: 5px solid var(--border); }
.social-link-pro:hover { transform: translateY(-5px); border-color: transparent; box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3); }
.social-link-pro:hover::before { opacity: 1; }
.social-link-pro:hover i { color: #fff; transform: scale(1.1); }
.social-link-pro:hover .social-tooltip { opacity: 1; visibility: visible; bottom: -40px; }
.social-center { justify-content: center; }
.scroll-indicator { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 0.5rem; color: var(--text-muted); font-size: 0.8rem; animation: bounce 2s infinite; z-index: 2; }
.mouse { width: 26px; height: 40px; border: 2px solid var(--border); border-radius: 20px; display: flex; justify-content: center; padding-top: 8px; }
.wheel { width: 4px; height: 8px; background: var(--primary); border-radius: 2px; animation: scroll 2s infinite; }
@keyframes scroll { 0% { transform: translateY(0); opacity: 1; } 100% { transform: translateY(10px); opacity: 0; } }
@keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); } 40% { transform: translateX(-50%) translateY(-10px); } 60% { transform: translateX(-50%) translateY(-5px); } }

.about-card p { margin-bottom: 1rem; color: var(--text-muted); }
.about-card p:first-of-type { color: var(--text); font-size: 1.05rem; }
.timeline-svc { color: var(--text-muted); font-size: 0.85rem; }
.budget { color: var(--green); font-weight: 600; font-size: 0.95rem; margin-bottom: 1rem; }
.service-card h3 { color: var(--accent); font-size: 1.15rem; margin-bottom: 0.5rem; font-family: var(--font-heading); }
.service-card h4 { color: var(--primary); font-size: 0.8rem; margin: 1rem 0 0.4rem; text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.service-card ul { margin-left: 1.2rem; list-style: disc; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0.5rem; }
.service-card ul li { margin-bottom: 0.2rem; }
.testimonial-card { position: relative; }
.testimonial-card::before { content: '\201C'; font-size: 4rem; color: var(--primary); opacity: 0.15; position: absolute; top: 0.5rem; left: 1rem; line-height: 1; font-family: serif; }
.testimonial-card p { margin-bottom: 1rem; font-style: italic; color: var(--text-muted); padding-top: 1rem; }
.testimonial-card h4 { color: var(--accent); font-size: 0.95rem; }
.testimonial-card span { font-size: 0.8rem; color: var(--text-muted); }
.process-card { text-align: center; }
.process-num { width: 48px; height: 48px; border-radius: 50%; background: var(--gradient); color: #fff; font-size: 1.2rem; font-weight: 700; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; font-family: var(--font-heading); }
.process-card h3 { color: var(--primary); margin-bottom: 0.4rem; font-family: var(--font-heading); }
.process-card p { color: var(--text-muted); font-size: 0.9rem; }
.project-img { border-radius: var(--radius) var(--radius) 0 0; overflow: hidden; }
.project-tag { display: flex; justify-content: space-between; align-items: center; font-size: 0.75rem; color: var(--text-muted); margin: 0.8rem 0 0.3rem; }
.project-tag span { background: rgba(255,255,255,0.06); padding: 0.2rem 0.7rem; border-radius: 999px; color: var(--primary); border: 1px solid var(--border); }
.project-card h3 { color: var(--text-heading); font-size: 1.1rem; margin-bottom: 0.2rem; font-family: var(--font-heading); }
.project-role { color: var(--accent); font-size: 0.85rem; margin-bottom: 0.8rem; }
.project-section h5 { color: var(--primary); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; margin: 0.8rem 0 0.2rem; font-weight: 600; }
.project-section p { color: var(--text-muted); font-size: 0.88rem; }
.project-links { display: flex; gap: 0.6rem; margin-top: 1rem; }
.contact-form { max-width: 620px; margin: 2rem auto 0; }
.contact-form h3 { color: var(--accent); margin-bottom: 0.3rem; font-family: var(--font-heading); }
.form-label { color: var(--primary); font-size: 0.8rem; font-weight: 600; margin: 1.2rem 0 0.5rem; text-transform: uppercase; letter-spacing: 0.5px; }
.contact-form input, .contact-form textarea, .contact-form select { width: 100%; padding: 0.8rem 1rem; background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: 10px; color: var(--text); font-size: 0.9rem; font-family: var(--font-body); transition: var(--transition); margin-bottom: 0.5rem; }
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); background: rgba(255,255,255,0.06); }.contact-form textarea { resize: vertical; min-height: 100px; }
.contact-form select { cursor: pointer; appearance: none; background-image: url("image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; }
.radio-group { display: flex; gap: 1.5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.radio-group label { display: flex; align-items: center; gap: 0.4rem; color: var(--text-muted); font-size: 0.9rem; cursor: pointer; }
.radio-group input[type="radio"] { accent-color: var(--primary); width: 16px; height: 16px; }
.footer { text-align: center; padding: 3rem 1.5rem 2rem; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 0.85rem; }
.back-to-top { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 50%; background: var(--bg-card); border: 1.5px solid var(--primary); color: var(--primary); font-size: 1rem; transition: var(--transition); margin-bottom: 1.5rem; }
.back-to-top:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

.education-timeline { display: grid; gap: 1.5rem; margin: 2rem 0 3rem; }
.edu-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); backdrop-filter: blur(12px); position: relative; }
.edu-card::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: var(--primary); transition: width 0.3s ease; }
.edu-card.online::before { background: var(--accent); }
.edu-card:hover { transform: translateY(-5px); box-shadow: 0 12px 40px rgba(59, 130, 246, 0.2); border-color: rgba(59, 130, 246, 0.3); }
.edu-card:hover::before { width: 6px; }
.edu-card-header { display: flex; align-items: center; justify-content: space-between; padding: 1.2rem 1.5rem; background: rgba(255, 255, 255, 0.03); border-bottom: 1px solid var(--border); }
.edu-icon-wrapper { width: 48px; height: 48px; border-radius: 12px; background: var(--gradient); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.3rem; box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3); }
.edu-icon-wrapper.online { background: linear-gradient(135deg, var(--accent), #06b6d4); box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3); }
.edu-badge { padding: 0.4rem 0.9rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; background: rgba(212, 175, 55, 0.15); color: var(--gold); border: 1px solid rgba(212, 175, 55, 0.3); }
.edu-badge.current { background: rgba(34, 197, 94, 0.15); color: var(--green); border-color: rgba(34, 197, 94, 0.3); }
.edu-badge.completed { background: rgba(59, 130, 246, 0.15); color: var(--primary); border-color: rgba(59, 130, 246, 0.3); }
.edu-card-body { padding: 1.5rem; }
.edu-card-body h4 { font-size: 1.2rem; color: var(--text-heading); margin-bottom: 0.5rem; font-weight: 600; font-family: var(--font-heading); }
.edu-date { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.9rem; color: var(--gold); font-weight: 500; margin-bottom: 0.8rem; }
.edu-date i { font-size: 0.85rem; }
.edu-card-body > p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; margin-bottom: 1rem; }
.edu-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.edu-tags span { padding: 0.35rem 0.8rem; background: rgba(255, 255, 255, 0.05); border: 1px solid var(--border); border-radius: 999px; font-size: 0.8rem; color: var(--text-muted); transition: var(--transition); }
.edu-tags span:hover { background: rgba(59, 130, 246, 0.1); border-color: var(--primary); color: var(--text-heading); }
.edu-link { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--primary); font-size: 0.9rem; font-weight: 500; margin-top: 0.8rem; transition: var(--transition); }
.edu-link:hover { gap: 0.8rem; color: var(--accent); }

.skill-card { padding: 1.5rem; }
.skill-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.skill-card h3 { color: var(--primary); font-size: 1.3rem; font-family: var(--font-heading); margin: 0; }
.skill-desc { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 1rem; }
.skill-items { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }
.skill-item { display: flex; align-items: center; gap: 0.6rem; background: rgba(255, 255, 255, 0.03); padding: 0.7rem 0.9rem; border-radius: 10px; font-size: 0.85rem; color: var(--text); transition: var(--transition); border: 1px solid var(--border); font-weight: 500; }
.skill-item:hover { background: rgba(255, 255, 255, 0.06); border-color: rgba(255, 255, 255, 0.15); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2); }
.skill-badge { padding: 0.3rem 0.8rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.02em; }
.skill-badge.completed { background: rgba(34, 197, 94, 0.15); color: var(--green); border: 1px solid rgba(34, 197, 94, 0.3); }
.skill-badge.learning { background: rgba(251, 191, 36, 0.15); color: #fbbf24; border: 1px solid rgba(251, 191, 36, 0.3); }
.icon-orange { color: #e34c26; } .icon-blue { color: #264de4; } .icon-yellow { color: #f0db4f; }
.icon-cyan { color: #61dafb; } .icon-green { color: #68a063; } .icon-red { color: #ed8b00; }
.icon-purple { color: #7952b3; } .icon-gray { color: #8b9dc3; } .icon-white { color: #ffffff; }
.icon-dark { color: #c9d1d9; } .icon-pink { color: #e91e63; }
[data-theme="light"] .icon-white { color: #000000; }
[data-theme="light"] .icon-dark { color: #1a1a1a; }
[data-theme="light"] .skill-item { background: rgba(0, 0, 0, 0.03); border-color: rgba(0, 0, 0, 0.1); }
[data-theme="light"] .skill-item:hover { background: rgba(0, 0, 0, 0.06); border-color: rgba(0, 0, 0, 0.2); }.skill-item i { font-size: 1.3rem; width: 24px; text-align: center; transition: transform 0.2s ease; }
.skill-item:hover i { transform: scale(1.15); }

/* 🔍 Project Filter Styles */
.filter-container { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; margin-bottom: 2rem; }
.filter-btn { padding: 0.5rem 1.2rem; background: rgba(255,255,255,0.05); border: 1px solid var(--border); border-radius: 999px; color: var(--text-muted); font-size: 0.85rem; cursor: pointer; transition: var(--transition); font-family: var(--font-body); }
.filter-btn:hover { background: rgba(59,130,246,0.1); color: var(--text-heading); }
.filter-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.project-card { transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
.project-card.hidden { display: none; }
.project-card.show { animation: fadeInScale 0.4s ease forwards; }
@keyframes fadeInScale { from { opacity: 0; transform: scale(0.95) translateY(10px); } to { opacity: 1; transform: scale(1) translateY(0); } }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

.fab-container { position: fixed; bottom: 30px; right: 30px; z-index: 999; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.fab-sub-buttons { display: flex; flex-direction: column; gap: 12px; opacity: 0; visibility: hidden; transform: translateY(20px) scale(0.8); transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); pointer-events: none; }
.fab-container.active .fab-sub-buttons { opacity: 1; visibility: visible; transform: translateY(0) scale(1); pointer-events: auto; }
.fab-sub { position: relative; width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; border-radius: 50%; color: #fff; font-size: 1.2rem; box-shadow: 0 4px 12px rgba(0,0,0,0.25); transition: all 0.25s ease; opacity: 0; transform: translateY(10px); text-decoration: none; }
.fab-container.active .fab-sub { opacity: 1; transform: translateY(0); }
.fab-container.active .fab-sub:nth-child(1) { transition-delay: 0.05s; }
.fab-container.active .fab-sub:nth-child(2) { transition-delay: 0.1s; }
.fab-container.active .fab-sub:nth-child(3) { transition-delay: 0.15s; }
.fab-container.active .fab-sub:nth-child(4) { transition-delay: 0.2s; }
.fab-whatsapp { background: linear-gradient(135deg, #25d366, #128c7e); }
.fab-telegram { background: linear-gradient(135deg, #0088cc, #005f99); }
.fab-call { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.fab-sms { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.fab-sub:hover { transform: scale(1.1) !important; box-shadow: 0 6px 16px rgba(0,0,0,0.35); }
.fab-main { width: 60px; height: 60px; border-radius: 50%; background: var(--gradient); border: none; color: #fff; font-size: 1.5rem; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4); transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); position: relative; z-index: 2; }
.fab-main:hover { transform: scale(1.05); box-shadow: 0 10px 30px rgba(59, 130, 246, 0.5); }
.fab-container.active .fab-main { transform: rotate(45deg); background: #ef4444; box-shadow: 0 8px 25px rgba(239, 68, 68, 0.4); }
.fab-tooltip { position: absolute; right: 60px; background: var(--bg-card); color: var(--text); padding: 0.4rem 0.8rem; border-radius: 6px; font-size: 0.8rem; white-space: nowrap; opacity: 0; visibility: hidden; transition: all 0.3s ease; border: 1px solid var(--border); box-shadow: 0 4px 12px rgba(0,0,0,0.2); z-index: 10; }
.fab-tooltip::before { content: ''; position: absolute; top: 50%; right: -4px; transform: translateY(-50%); border-top: 5px solid transparent; border-bottom: 5px solid transparent; border-left: 5px solid var(--border); }
.fab-sub:hover .fab-tooltip { opacity: 1; visibility: visible; right: 65px; }
.fab-main-tooltip { position: absolute; right: 70px; background: var(--bg-card); color: var(--text); padding: 0.5rem 1rem; border-radius: 8px; font-size: 0.85rem; font-weight: 500; white-space: nowrap; opacity: 0; visibility: hidden; transition: all 0.3s ease; border: 1px solid var(--border); box-shadow: 0 4px 12px rgba(0,0,0,0.2); z-index: 10; }
.fab-main:hover .fab-main-tooltip { opacity: 1; visibility: visible; right: 75px; }

@media (max-width: 768px) {
  .skill-items { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; align-items: center; }
  .hero-btns .btn { width: 100%; max-width: 280px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 1.5rem; padding: 1.5rem; }
  .stat-divider { width: 50px; height: 1px; }
  .fab-container { bottom: 20px; right: 20px; }
  .fab-main { width: 54px; height: 54px; font-size: 1.3rem; }
  .fab-sub { width: 44px; height: 44px; font-size: 1.1rem; }
  .fab-tooltip, .fab-main-tooltip { display: none; }  .theme-toggle { width: 50px; height: 28px; }
  .theme-toggle-bg { width: 22px; height: 22px; }
  [data-theme="light"] .theme-toggle-bg { transform: translateX(22px); }
  .edu-card-header { padding: 1rem 1.2rem; }
  .edu-card-body { padding: 1.2rem; }
  .filter-container { gap: 0.4rem; }
  .filter-btn { padding: 0.45rem 0.9rem; font-size: 0.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
/* ========================================
   TOAST NOTIFICATION STYLES
   ======================================== */
.toast-notification {
  position: fixed;
  top: 100px;
  right: 20px;
  z-index: 1000;
  max-width: 320px;
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
  transform: translateX(400px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 12px;
}

.toast-notification.show {
  transform: translateX(0);
}

.toast-notification.success {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.95), rgba(22, 163, 74, 0.95));
  border-left: 4px solid #22c55e;
  color: white;
}

.toast-notification.error {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.95), rgba(220, 38, 38, 0.95));
  border-left: 4px solid #ef4444;
  color: white;
}

.toast-notification.warning {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.95), rgba(217, 119, 6, 0.95));
  border-left: 4px solid #f59e0b;
  color: white;
}

.toast-notification i {
  font-size: 1.2rem;
}

.toast-notification .toast-message {
  flex: 1;
}

.toast-notification .toast-close {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  font-size: 1rem;
  opacity: 0.7;
  transition: opacity 0.2s;
  padding: 0 4px;
}

.toast-notification .toast-close:hover {
  opacity: 1;
}

/* Button loading state */
.btn-loading {
  position: relative;
  pointer-events: none;
  opacity: 0.7;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 8px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive toast */
@media (max-width: 768px) {
  .toast-notification {
    top: 80px;
    right: 10px;
    left: 10px;
    max-width: calc(100% - 20px);
    padding: 12px 16px;
  }
}