:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-card-hover: #fafbff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --text-inverse: #ffffff;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-light: #eef2ff;
    --accent-glow: rgba(99,102,241,0.25);
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06),0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07),0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08),0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08),0 8px 10px -6px rgba(0,0,0,0.04);
    --glass-bg: rgba(255,255,255,0.72);
    --glass-border: rgba(255,255,255,0.4);
    --nav-bg: rgba(255,255,255,0.82);
    --gradient-start: #6366f1;
    --gradient-mid: #8b5cf6;
    --gradient-end: #a855f7;
    --hero-bg: linear-gradient(135deg,#eef2ff 0%,#faf5ff 50%,#fdf2f8 100%);
    --cta-bg: linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#a855f7 100%);
    --footer-bg: #0f172a;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

[data-theme="dark"] {
    --bg-primary: #0a0e27;
    --bg-secondary: #0f1635;
    --bg-tertiary: #161d42;
    --bg-card: #131a3a;
    --bg-card-hover: #1a2248;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --text-inverse: #0f172a;
    --border: #1e293b;
    --border-light: #1a2040;
    --accent: #818cf8;
    --accent-hover: #6366f1;
    --accent-light: rgba(99,102,241,0.15);
    --accent-glow: rgba(129,140,248,0.25);
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.2);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3),0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.35),0 2px 4px -2px rgba(0,0,0,0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.35),0 4px 6px -4px rgba(0,0,0,0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.4),0 8px 10px -6px rgba(0,0,0,0.25);
    --glass-bg: rgba(10,14,39,0.78);
    --glass-border: rgba(30,41,59,0.6);
    --nav-bg: rgba(10,14,39,0.88);
    --hero-bg: linear-gradient(135deg,#0a0e27 0%,#0f1635 50%,#1a1040 100%);
    --cta-bg: linear-gradient(135deg,#4f46e5 0%,#7c3aed 50%,#9333ea 100%);
    --footer-bg: #060918;
}

/* ============================================
    2. RESET & BASE
    ============================================ */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
button { border: none; cursor: pointer; font-family: inherit; background: none; }
ul, ol { list-style: none; }
::selection { background: var(--accent); color: var(--text-inverse); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ============================================
    3. TYPOGRAPHY
    ============================================ */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.2; color: var(--text-primary); }

.section-label {
    display: inline-block;
    font-size: 0.75rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--accent);
    background: var(--accent-light);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800; margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.05rem; color: var(--text-secondary);
    max-width: 560px; margin: 0 auto; font-weight: 400;
}

.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
    4. UTILITY CLASSES
    ============================================ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }

/* ============================================
    5. BUTTONS
    ============================================ */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: var(--radius-full);
    font-size: 0.9rem; font-weight: 600;
    transition: all var(--transition);
    position: relative; overflow: hidden;
}
.btn-primary {
    background: var(--accent); color: var(--text-inverse);
    box-shadow: 0 4px 14px var(--accent-glow);
}
.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}
.btn-secondary {
    background: var(--bg-card); color: var(--text-primary);
    border: 1.5px solid var(--border);
}
.btn-secondary:hover {
    border-color: var(--accent); color: var(--accent);
    transform: translateY(-2px); box-shadow: var(--shadow-md);
}
.btn-outline-sm {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border-radius: var(--radius-full);
    font-size: 0.78rem; font-weight: 600;
    color: var(--accent); background: transparent;
    border: 1.5px solid var(--accent);
    transition: all var(--transition);
}
.btn-outline-sm:hover {
    background: var(--accent); color: var(--text-inverse);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--accent-glow);
}
.btn-whatsapp {
    background: #25D366; color: #fff;
    box-shadow: 0 4px 14px rgba(37,211,102,0.3);
}
.btn-whatsapp:hover {
    background: #1eb954; transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37,211,102,0.35);
}

/* ============================================
    6. NAVIGATION
    ============================================ */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 1000; padding: 16px 0;
    transition: all var(--transition);
}
.navbar.scrolled {
    padding: 10px 0;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-sm);
}
.navbar .container {
    display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.02em; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
    padding: 8px 16px; font-size: 0.875rem; font-weight: 500;
    color: var(--text-secondary); border-radius: var(--radius-full);
    transition: all var(--transition);
}
.nav-links a:hover, .nav-links a.active {
    color: var(--accent); background: var(--accent-light);
}
.nav-right { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
    width: 44px; height: 44px; border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-tertiary); color: var(--text-secondary);
    font-size: 1.1rem; transition: all var(--transition);
    border: 1px solid var(--border);
}
.theme-toggle:hover {
    color: var(--accent); border-color: var(--accent);
    background: var(--accent-light);
}

.hamburger {
    display: none; width: 44px; height: 44px;
    flex-direction: column; align-items: center; justify-content: center;
    gap: 5px; border-radius: var(--radius-full);
    background: var(--bg-tertiary); border: 1px solid var(--border);
    transition: all var(--transition);
}
.hamburger span {
    display: block; width: 20px; height: 2px;
    background: var(--text-primary); border-radius: 2px;
    transition: all var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

.mobile-menu {
    display: none; position: fixed; inset: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 999; flex-direction: column;
    align-items: center; justify-content: center; gap: 8px;
    opacity: 0; transition: opacity var(--transition);
}
.mobile-menu.open { display: flex; opacity: 1; }
.mobile-menu a {
    font-size: 1.25rem; font-weight: 600;
    color: var(--text-secondary); padding: 14px 32px;
    border-radius: var(--radius-lg); transition: all var(--transition);
}
.mobile-menu a:hover, .mobile-menu a.active {
    color: var(--accent); background: var(--accent-light);
}

/* ============================================
    7. HERO SECTION
    ============================================ */
.hero {
    min-height: 100vh; background: var(--hero-bg);
    display: flex; align-items: center;
    position: relative; overflow: hidden;
    padding-top: 80px;
    transition: background var(--transition);
}
.hero-blob {
    position: absolute; border-radius: 50%;
    filter: blur(100px); opacity: 0.4; pointer-events: none;
}
.hero-blob-1 {
    width: 500px; height: 500px; background: var(--gradient-start);
    top: -100px; right: -100px; animation: blobFloat 20s ease-in-out infinite;
}
.hero-blob-2 {
    width: 400px; height: 400px; background: var(--gradient-end);
    bottom: -80px; left: -80px; animation: blobFloat 25s ease-in-out infinite reverse;
}
.hero-blob-3 {
    width: 300px; height: 300px; background: var(--gradient-mid);
    top: 50%; left: 50%; transform: translate(-50%, -50%);
    animation: blobFloat 18s ease-in-out infinite 5s;
}
@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(40px, 30px) scale(1.03); }
}
.hero .container {
    display: grid; grid-template-columns: 1fr 1fr;
    align-items: center; gap: 60px;
    position: relative; z-index: 1;
}
.hero-label {
    font-size: 0.875rem; font-weight: 500;
    color: var(--text-secondary); margin-bottom: 12px;
}
.hero-label i { color: var(--accent); margin-right: 6px; }
.hero-name {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800; letter-spacing: -0.03em;
    line-height: 1.1; margin-bottom: 8px;
}
.hero-title {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 500; margin-bottom: 20px;
}
.hero-desc {
    font-size: 1.05rem; color: var(--text-secondary);
    line-height: 1.7; margin-bottom: 32px; max-width: 480px;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-socials { display: flex; gap: 12px; }
.hero-socials a {
    width: 42px; height: 42px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-full);
    background: var(--bg-card); border: 1px solid var(--border);
    color: var(--text-secondary); font-size: 1rem;
    transition: all var(--transition);
}
.hero-socials a:hover {
    color: var(--accent); border-color: var(--accent);
    background: var(--accent-light); transform: translateY(-3px);
    box-shadow: 0 6px 16px var(--accent-glow);
}
.hero-image-wrap {
    display: flex; justify-content: center; align-items: center;
    position: relative;
}
.hero-image-frame {
    width: 380px; height: 380px; border-radius: 50%;
    padding: 6px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
    animation: frameRotate 10s linear infinite;
}
@keyframes frameRotate {
    0% { background: linear-gradient(0deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end)); }
    33% { background: linear-gradient(120deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end)); }
    66% { background: linear-gradient(240deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end)); }
    100% { background: linear-gradient(360deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end)); }
}
.hero-image-inner {
    width: 100%; height: 100%; border-radius: 50%;
    overflow: hidden; background: var(--bg-secondary);
}
.hero-image-inner img { width: 100%; height: 100%; object-fit: cover; }
.hero-float-badge {
    position: absolute;
    background: var(--glass-bg); backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg); padding: 12px 18px;
    display: flex; align-items: center; gap: 10px;
    font-size: 0.85rem; font-weight: 600;
    color: var(--text-primary); box-shadow: var(--shadow-lg);
    animation: badgeFloat 6s ease-in-out infinite;
}
.hero-float-badge i { font-size: 1.2rem; }
.badge-1 { top: 20px; right: -20px; }
.badge-2 { bottom: 40px; left: -30px; animation-delay: 3s; }
.badge-1 i { color: #f59e0b; }
.badge-2 i { color: #10b981; }
@keyframes badgeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ============================================
    8. ABOUT SECTION
    ============================================ */
.about { background: var(--bg-primary); }
.about-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: center;
}
.about-text p {
    color: var(--text-secondary); margin-bottom: 16px;
    line-height: 1.7; font-size: 0.95rem;
}
.about-highlights { margin-top: 24px; display: flex; flex-direction: column; gap: 12px; }
.about-highlights li {
    display: flex; align-items: center; gap: 10px;
    font-size: 0.9rem; font-weight: 500; color: var(--text-primary);
}
.about-highlights li i {
    color: var(--accent); font-size: 0.8rem;
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    background: var(--accent-light); border-radius: var(--radius-full);
}
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stat-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px 24px;
    text-align: center; transition: all var(--transition);
}
.stat-card:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}
.stat-number { font-size: 2rem; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 6px; }
.stat-label {
    font-size: 0.8rem; font-weight: 500; color: var(--text-tertiary);
    text-transform: uppercase; letter-spacing: 0.05em;
}

/* ============================================
    9. SKILLS SECTION
    ============================================ */
.skills { background: var(--bg-secondary); }
.skills-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.skill-category-title {
    font-size: 1.1rem; font-weight: 700; margin-bottom: 24px;
    display: flex; align-items: center; gap: 10px;
}
.skill-category-title i { color: var(--accent); }
.skill-bar-item { margin-bottom: 20px; }
.skill-bar-header {
    display: flex; justify-content: space-between;
    margin-bottom: 8px; font-size: 0.875rem; font-weight: 600;
}
.skill-bar-header span:last-child { color: var(--accent); }
.skill-bar-track {
    height: 8px; background: var(--bg-tertiary);
    border-radius: var(--radius-full); overflow: hidden;
}
.skill-bar-fill {
    height: 100%; border-radius: var(--radius-full);
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    width: 0; transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}
.skill-cards-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.skill-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 20px;
    transition: all var(--transition); cursor: default;
}
.skill-card:hover {
    transform: translateY(-3px); box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.skill-card i { font-size: 1.5rem; color: var(--accent); margin-bottom: 10px; }
.skill-card h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: 4px; }
.skill-card p { font-size: 0.75rem; color: var(--text-tertiary); }

/* ============================================
    10. TOOLS CAROUSEL
    ============================================ */
.tools { background: var(--bg-primary); overflow: hidden; padding: 80px 0; }
.tools-carousel-wrap {
    overflow: hidden; margin-top: 40px;
    -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
    mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}
.tools-track {
    display: flex; gap: 24px;
    animation: toolScroll 40s linear infinite; width: max-content;
}
.tools-track:hover { animation-play-state: paused; }
@keyframes toolScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.tool-card {
    flex-shrink: 0; width: 140px; height: 100px;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 10px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); transition: all var(--transition);
    cursor: default;
}
.tool-card:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: var(--shadow-lg); border-color: var(--accent);
}
.tool-card i { font-size: 1.8rem; transition: color var(--transition); }
.tool-card:hover i { color: var(--accent); }
.tool-card span { font-size: 0.72rem; font-weight: 600; color: var(--text-secondary); white-space: nowrap; }

/* ============================================
    11. CERTIFICATES SECTION
    ============================================ */
.certificates { background: var(--bg-secondary); }
.certs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cert-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden;
    transition: all var(--transition); cursor: pointer;
}
.cert-card:hover {
    transform: translateY(-6px); box-shadow: var(--shadow-xl);
    border-color: var(--accent);
}
.cert-image-wrap {
    position: relative; height: 200px; overflow: hidden;
    background: var(--bg-tertiary);
}
.cert-image-wrap img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.6s ease;
}
.cert-card:hover .cert-image-wrap img { transform: scale(1.08); }
.cert-overlay {
    position: absolute; inset: 0;
    background: rgba(0,0,0,0.4);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity var(--transition);
}
.cert-card:hover .cert-overlay { opacity: 1; }
.cert-overlay i {
    color: #fff; font-size: 1.8rem; transform: scale(0.8);
    transition: transform var(--transition);
}
.cert-card:hover .cert-overlay i { transform: scale(1); }
.cert-info { padding: 18px; }
.cert-info h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; line-height: 1.3; }
.cert-info p { font-size: 0.78rem; color: var(--text-tertiary); }

/* ============================================
    12. EDUCATION SECTION
    ============================================ */
.education { background: var(--bg-primary); }
.timeline { position: relative; max-width: 700px; margin: 0 auto; }
.timeline::before {
    content: ''; position: absolute; left: 24px;
    top: 0; bottom: 0; width: 2px; background: var(--border);
}
.timeline-item { position: relative; padding-left: 64px; padding-bottom: 40px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
    position: absolute; left: 16px; top: 6px;
    width: 18px; height: 18px; border-radius: 50%;
    background: var(--accent); border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.timeline-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 24px;
    transition: all var(--transition);
}
.timeline-card:hover {
    box-shadow: var(--shadow-lg); border-color: var(--accent);
    transform: translateX(4px);
}
.timeline-date {
    display: inline-block; font-size: 0.75rem; font-weight: 600;
    color: var(--accent); background: var(--accent-light);
    padding: 4px 12px; border-radius: var(--radius-full); margin-bottom: 12px;
}
.timeline-card h4 { font-size: 1rem; margin-bottom: 4px; }
.timeline-card .institution { font-size: 0.85rem; color: var(--accent); font-weight: 600; margin-bottom: 4px; }
.timeline-card .gpa { font-size: 0.8rem; color: var(--text-tertiary); margin-bottom: 8px; }
.timeline-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* ============================================
    13. COURSES SECTION (UPDATED WITH DETAIL BTN)
    ============================================ */
.courses { background: var(--bg-secondary); }
.courses-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.course-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px;
    transition: all var(--transition);
    display: flex; flex-direction: column; gap: 12px;
}
.course-card:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}
.course-card-top { display: flex; align-items: flex-start; gap: 14px; }
.course-card .course-icon {
    width: 48px; height: 48px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    background: var(--accent-light); border-radius: var(--radius-md);
    color: var(--accent); font-size: 1.2rem;
}
.course-card-top-text { flex: 1; }
.course-card-top-text h4 { font-size: 0.95rem; line-height: 1.35; }
.course-card .course-meta {
    font-size: 0.78rem; color: var(--text-tertiary);
    display: flex; gap: 16px;
}
.course-card .course-meta span { display: flex; align-items: center; gap: 4px; }
.course-card .course-desc {
    font-size: 0.83rem; color: var(--text-secondary); line-height: 1.6;
}
.course-card .course-footer {
    margin-top: auto; padding-top: 12px;
    border-top: 1px solid var(--border-light);
}

/* ============================================
    14. EXPERIENCE SECTION
    ============================================ */
.experience { background: var(--bg-primary); }
.exp-timeline { position: relative; max-width: 800px; margin: 0 auto; }
.exp-timeline::before {
    content: ''; position: absolute; left: 24px;
    top: 0; bottom: 0; width: 2px;
    background: linear-gradient(to bottom, var(--gradient-start), var(--gradient-end));
}
.exp-item { position: relative; padding-left: 64px; padding-bottom: 48px; }
.exp-item:last-child { padding-bottom: 0; }
.exp-dot {
    position: absolute; left: 14px; top: 8px;
    width: 22px; height: 22px; border-radius: 50%;
    background: var(--bg-primary); border: 3px solid var(--accent);
    display: flex; align-items: center; justify-content: center;
}
.exp-dot::after {
    content: ''; width: 8px; height: 8px;
    border-radius: 50%; background: var(--accent);
}
.exp-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px;
    transition: all var(--transition);
}
.exp-card .exp-footer {
    margin-top: auto; padding-top: 12px; margin-top: 10px;
    border-top: 1px solid var(--border-light);
}
.exp-card:hover {
    box-shadow: var(--shadow-lg); border-color: var(--accent);
    transform: translateX(4px);
}
.exp-header {
    display: flex; justify-content: space-between;
    align-items: flex-start; flex-wrap: wrap; gap: 8px; margin-bottom: 8px;
}
.exp-header h4 { font-size: 1.05rem; }
.exp-date {
    font-size: 0.75rem; font-weight: 600; color: var(--accent);
    background: var(--accent-light); padding: 4px 12px;
    border-radius: var(--radius-full); white-space: nowrap;
}
.exp-company { font-size: 0.88rem; color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.exp-highlights { display: flex; flex-direction: column; gap: 8px; }
.exp-highlights li {
    font-size: 0.85rem; color: var(--text-secondary);
    display: flex; align-items: flex-start; gap: 8px; line-height: 1.5;
}
.exp-highlights li i {
    color: var(--accent); margin-top: 5px; font-size: 0.6rem; flex-shrink: 0;
}

/* ============================================
    15. PROJECTS SECTION (UPDATED WITH DETAIL BTN)
    ============================================ */
.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);
    border-radius: var(--radius-xl); overflow: hidden;
    transition: all var(--transition); display: flex; flex-direction: column;
}
.project-card:hover {
    transform: translateY(-8px); box-shadow: var(--shadow-xl);
    border-color: var(--accent);
}
.project-image {
    height: 200px; overflow: hidden;
    position: relative; background: var(--bg-tertiary);
}
.project-image img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.6s ease;
}
.project-card:hover .project-image img { transform: scale(1.06); }
.project-body {
    padding: 24px; flex: 1;
    display: flex; flex-direction: column;
}
.project-body h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.project-body p {
    font-size: 0.83rem; color: var(--text-secondary);
    line-height: 1.6; margin-bottom: 16px; flex: 1;
}
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.project-tags span {
    font-size: 0.7rem; font-weight: 600; padding: 4px 10px;
    background: var(--accent-light); color: var(--accent);
    border-radius: var(--radius-full);
}
.project-actions { display: flex; gap: 10px; }
.project-actions .btn { padding: 10px 20px; font-size: 0.8rem; }

/* ============================================
    16. GALLERY SECTION
    ============================================ */
.gallery { background: var(--bg-primary); }
.gallery-grid { columns: 3; column-gap: 20px; }
.gallery-item {
    break-inside: avoid; margin-bottom: 20px;
    border-radius: var(--radius-lg); overflow: hidden;
    position: relative; cursor: pointer;
}
.gallery-item img { width: 100%; display: block; transition: transform 0.6s ease; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.5), transparent 60%);
    opacity: 0; transition: opacity var(--transition);
    display: flex; align-items: flex-end; padding: 20px;
}
.gallery-item:hover .gallery-item-overlay { opacity: 1; }
.gallery-item-overlay i {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    color: #fff; font-size: 1.4rem; transition: transform var(--transition);
}
.gallery-item:hover .gallery-item-overlay i { transform: translate(-50%, -50%) scale(1); }

/* ============================================
    17. CTA SECTION
    ============================================ */
.cta {
    background: var(--cta-bg); padding: 100px 0;
    text-align: center; position: relative; overflow: hidden;
}
.cta::before {
    content: ''; position: absolute;
    width: 400px; height: 400px; border-radius: 50%;
    background: rgba(255,255,255,0.08);
    top: -200px; right: -100px;
}
.cta::after {
    content: ''; position: absolute;
    width: 300px; height: 300px; border-radius: 50%;
    background: rgba(255,255,255,0.06);
    bottom: -150px; left: -80px;
}
.cta .section-label { background: rgba(255,255,255,0.15); color: #fff; }
.cta .section-title { color: #fff; }
.cta .section-subtitle { color: rgba(255,255,255,0.8); }
.cta-buttons {
    display: flex; gap: 16px; justify-content: center;
    flex-wrap: wrap; margin-top: 36px; position: relative; z-index: 1;
}
.cta .btn-primary {
    background: #fff; color: var(--accent);
    box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}
.cta .btn-primary:hover { background: #f0f0ff; }

/* ============================================
    18. FOOTER
    ============================================ */
.footer { background: var(--footer-bg); padding: 60px 0 0; color: #94a3b8; }
.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px; padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .nav-logo { color: #f1f5f9; margin-bottom: 16px; display: inline-block; }
.footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 300px; }
.footer-col h5 {
    color: #f1f5f9; font-size: 0.85rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 0.85rem; color: #94a3b8; transition: color var(--transition); }
.footer-col a:hover { color: #818cf8; }
.footer-socials { display: flex; gap: 10px; margin-top: 20px; }
.footer-socials a {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.06); color: #94a3b8;
    font-size: 0.9rem; transition: all var(--transition);
}
.footer-socials a:hover {
    background: var(--accent); color: #fff; transform: translateY(-2px);
}
.footer-bottom {
    padding: 24px 0; text-align: center;
    font-size: 0.8rem; color: #64748b;
}

/* ============================================
    20. DETAIL MODAL (NEW)
    ============================================ */
.detail-modal-overlay {
    position: fixed; inset: 0; z-index: 2000;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex; align-items: center; justify-content: center;
    padding: 24px;
    opacity: 0; visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}
.detail-modal-overlay.open {
    opacity: 1; visibility: visible;
}

.detail-modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    width: 100%; max-width: 680px;
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0,0,0,0.3);
    transform: translateY(30px) scale(0.96);
    transition: transform 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
.detail-modal-overlay.open .detail-modal {
    transform: translateY(0) scale(1);
}

/* Scrollbar inside modal */
.detail-modal::-webkit-scrollbar { width: 6px; }
.detail-modal::-webkit-scrollbar-track { background: transparent; }
.detail-modal::-webkit-scrollbar-thumb {
    background: var(--border); border-radius: 3px;
}
.detail-modal::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

.detail-modal-header {
    position: sticky; top: 0; z-index: 2;
    background: var(--bg-card);
    padding: 24px 28px 0;
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 16px;
    margin-bottom: 15px;
}
.detail-modal-header-text { flex: 1; }
.detail-modal-header-text h3 {
    font-size: 1.25rem; font-weight: 800;
    margin-bottom: 4px; line-height: 1.3;
}
.detail-modal-badge {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 0.7rem; font-weight: 600;
    padding: 4px 10px; border-radius: var(--radius-full);
    background: var(--accent-light); color: var(--accent);
    margin-bottom: 6px;
}

.detail-modal-close {
    width: 36px; height: 36px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    color: var(--text-secondary); font-size: 0.9rem;
    transition: all var(--transition);
    border: 1px solid var(--border);
}
.detail-modal-close:hover {
    background: #ef4444; color: #fff;
    border-color: #ef4444;
}

.detail-modal-image {
    margin: 20px 28px;
    border-radius: var(--radius-lg);
    overflow: hidden; height: 220px;
    background: var(--bg-tertiary);
}
.detail-modal-image img {
    width: 100%; height: 100%; object-fit: cover;
}

.detail-modal-body { padding: 0 28px 28px; }

.detail-meta-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
    margin-bottom: 24px;
}
.detail-meta-item {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}
.detail-meta-item i {
    color: var(--accent); font-size: 0.85rem;
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    background: var(--accent-light);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}
.detail-meta-item .meta-label {
    font-size: 0.7rem; color: var(--text-tertiary);
    text-transform: uppercase; letter-spacing: 0.05em;
    font-weight: 600;
}
.detail-meta-item .meta-value {
    font-size: 0.85rem; color: var(--text-primary);
    font-weight: 600; line-height: 1.2;
}

.detail-section { margin-bottom: 22px; }
.detail-section:last-child { margin-bottom: 0; }
.detail-section-title {
    font-size: 0.78rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--text-tertiary); margin-bottom: 10px;
    display: flex; align-items: center; gap: 8px;
}
.detail-section-title::after {
    content: ''; flex: 1; height: 1px;
    background: var(--border);
}

.detail-description {
    font-size: 0.88rem; color: var(--text-secondary);
    line-height: 1.75;
}

.detail-highlights {
    display: flex; flex-direction: column; gap: 10px;
}
.detail-highlights li {
    display: flex; align-items: flex-start; gap: 10px;
    font-size: 0.85rem; color: var(--text-secondary);
    line-height: 1.5;
}
.detail-highlights li i {
    color: var(--accent); margin-top: 4px;
    font-size: 0.55rem; flex-shrink: 0;
}

.detail-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.detail-tags span {
    font-size: 0.75rem; font-weight: 600;
    padding: 6px 14px;
    background: var(--accent-light); color: var(--accent);
    border-radius: var(--radius-full);
    transition: all var(--transition);
}
.detail-tags span:hover {
    background: var(--accent); color: var(--text-inverse);
}

.detail-modal-actions {
    display: flex; gap: 12px; margin-top: 24px;
    padding-top: 24px; border-top: 1px solid var(--border);
}
.detail-modal-actions .btn { flex: 1; justify-content: center; }

/* ============================================
    21. SCROLL TO TOP
    ============================================ */
.scroll-top {
    position: fixed; bottom: 30px; right: 30px;
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    background: var(--accent); color: #fff;
    border-radius: var(--radius-full); font-size: 1rem;
    box-shadow: 0 4px 14px var(--accent-glow);
    z-index: 900; opacity: 0; visibility: hidden;
    transform: translateY(10px); transition: all var(--transition); cursor: pointer;
}
.scroll-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

/* ============================================
    22. SCROLL REVEAL ANIMATION
    ============================================ */
.reveal {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.revealed { 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; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
    23. RESPONSIVE
    ============================================ */
@media (max-width: 1024px) {
    .hero .container { grid-template-columns: 1fr; text-align: center; }
    .hero-desc { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .hero-socials { justify-content: center; }
    .hero-image-wrap { order: -1; }
    .hero-image-frame { width: 280px; height: 280px; }
    .hero-float-badge { display: none; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-stats { grid-template-columns: repeat(4, 1fr); }
    .skills-grid { grid-template-columns: 1fr; }
    .certs-grid { grid-template-columns: repeat(2, 1fr); }
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    .section { padding: 72px 0; }
    .section-header { margin-bottom: 40px; }
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .about-stats { grid-template-columns: 1fr 1fr; }
    .skill-cards-grid { grid-template-columns: 1fr; }
    .certs-grid { grid-template-columns: 1fr; }
    .courses-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .gallery-grid { columns: 2; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .timeline::before, .exp-timeline::before { left: 16px; }
    .timeline-item, .exp-item { padding-left: 48px; }
    .timeline-dot { left: 8px; }
    .exp-dot { left: 6px; }
    .detail-meta-grid { grid-template-columns: 1fr; }
    .detail-modal { max-height: 92vh; }
    .detail-modal-image { height: 180px; margin: 16px 20px; }
    .detail-modal-header { padding: 20px 20px 0; }
    .detail-modal-body { padding: 0 20px 20px; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-name { font-size: 2.2rem; }
    .hero-image-frame { width: 220px; height: 220px; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .hero-buttons .btn { width: 100%; justify-content: center; }
    .about-stats { grid-template-columns: 1fr 1fr; gap: 12px; }
    .stat-card { padding: 20px 16px; }
    .stat-number { font-size: 1.5rem; }
    .gallery-grid { columns: 1; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .cta-buttons .btn { width: 100%; max-width: 280px; justify-content: center; }
    .tool-card { width: 110px; height: 85px; }
    .tool-card i { font-size: 1.4rem; }
    .tool-card span { font-size: 0.65rem; }
    .detail-modal-overlay { padding: 12px; }
    .detail-modal-actions { flex-direction: column; }
}

 /* ============================================
   LOAD MORE / LIHAT LAINNYA
   ============================================ */
.load-more-wrap {
    text-align: center;
    margin-top: 48px;
}

.btn-load-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    background: transparent;
    border: 2px solid var(--accent);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-load-more::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
}

.btn-load-more:hover::before {
    transform: scaleX(1);
}

.btn-load-more:hover {
    color: var(--text-inverse);
    box-shadow: 0 6px 20px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-load-more i,
.btn-load-more span {
    position: relative;
    z-index: 1;
}

/* Icon rotation on active state */
.btn-load-more.active i {
    transform: rotate(180deg);
    transition: transform 0.3s ease;
}

.btn-load-more i {
    transition: transform 0.3s ease;
}

/* Hidden items */
.load-more-hidden {
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

.load-more-hidden.show {
    display: block; /* or grid/flex depending on parent */
    opacity: 1;
    transform: translateY(0);
    animation: loadMoreFadeIn 0.5s ease forwards;
}

@keyframes loadMoreFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Staggered animation for multiple items */
.load-more-hidden.show:nth-child(1) { animation-delay: 0s; }
.load-more-hidden.show:nth-child(2) { animation-delay: 0.08s; }
.load-more-hidden.show:nth-child(3) { animation-delay: 0.16s; }
.load-more-hidden.show:nth-child(4) { animation-delay: 0.24s; }
.load-more-hidden.show:nth-child(5) { animation-delay: 0.32s; }
.load-more-hidden.show:nth-child(6) { animation-delay: 0.4s; }