/* === GOOGLE FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400&family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* === CSS VARIABLES === */
:root {
    --sidebar-width: 260px;
    --sidebar-bg: rgba(14, 42, 42, 0.98);
    --bg-dark: #1c5050;
    --accent-cyan: #7ecdc7;
    --accent-purple: #d4b896;
    --gradient-main: linear-gradient(135deg, #7ecdc7, #d4b896);
    --btn-color: #7ecdc7;
    --btn-color-2: #d4b896;
    --gradient-btn: linear-gradient(135deg, #f5f0e8, #e8dfd0);
    --gradient-bg: linear-gradient(135deg, #1c5050 0%, #1e5555 40%, #205858 70%, #1c5050 100%);
    --text-primary: #f5f0e8;
    --text-secondary: #b8d4d1;
    --text-muted: #6a9e9c;
    --white: #ffffff;
    --card-bg: rgba(245, 240, 228, 0.97);
    --card-glass: rgba(255, 255, 255, 0.07);
    --border-glass: rgba(255, 255, 255, 0.13);
    --border-accent: rgba(126, 205, 199, 0.5);
    --shadow-sm: 0 4px 15px rgba(0,0,0,0.2);
    --shadow-md: 0 10px 40px rgba(0,0,0,0.28);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.38);
    --glow-cyan: 0 0 28px rgba(126,205,199,0.3);
    --glow-purple: 0 0 28px rgba(212,184,150,0.25);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --font-serif: 'Cormorant Garamond', Georgia, serif;
}

/* === RESET === */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: var(--font); }

/* === PAGE LOADER === */
#page-loader {
    position: fixed; inset: 0; z-index: 9999;
    background: var(--bg-dark);
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.5s var(--ease), visibility 0.5s var(--ease);
}
#page-loader.hidden { opacity: 0; visibility: hidden; }
.loader-inner { position: relative; width: 72px; height: 72px; }
.loader-ring {
    position: absolute; inset: 0;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #7ecdc7;
    border-right-color: #d4b896;
    animation: loaderSpin 0.9s linear infinite;
}
.loader-ring::after {
    content: '';
    position: absolute; inset: 6px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-bottom-color: rgba(126,205,199,0.4);
    animation: loaderSpin 1.5s linear infinite reverse;
}
.loader-initials {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; font-weight: 800; color: var(--white);
    letter-spacing: 0.05em;
}
@keyframes loaderSpin { to { transform: rotate(360deg); } }

/* === AVAILABILITY BADGE === */
.availability-badge {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.35);
    color: #10b981;
    font-size: 0.78rem; font-weight: 600;
    padding: 0.35rem 0.9rem;
    border-radius: 50px;
    margin-bottom: 1rem;
    animation: heroFadeUp 0.7s var(--ease) 0s both;
}
.avail-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: #10b981;
    animation: availPulse 1.8s ease-in-out infinite;
    flex-shrink: 0;
}
@keyframes availPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.6); }
    50%       { box-shadow: 0 0 0 5px rgba(16,185,129,0); }
}

/* === ANIMATED GRADIENT BACKGROUND === */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--gradient-bg);
    z-index: -2;
}

/* === AMBIENT GLOW ORBS === */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(ellipse 600px 500px at 15% 20%, rgba(255,255,255,0.04) 0%, transparent 70%),
        radial-gradient(ellipse 500px 400px at 85% 70%, rgba(212,184,150,0.05) 0%, transparent 70%),
        radial-gradient(ellipse 400px 350px at 50% 50%, rgba(126,205,199,0.04) 0%, transparent 70%);
    animation: orbDrift 18s ease-in-out infinite alternate;
}
@keyframes orbDrift {
    0%   { opacity: 0.7; transform: scale(1) translate(0, 0); }
    50%  { opacity: 1;   transform: scale(1.08) translate(20px, -15px); }
    100% { opacity: 0.8; transform: scale(0.95) translate(-15px, 20px); }
}

/* === PARTICLES CANVAS === */
#particles-canvas {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

/* === SCROLL PROGRESS === */
#scroll-progress {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: 3px;
    background: var(--gradient-main);
    transform-origin: left;
    transform: scaleX(0);
    z-index: 999;
    transition: transform 0.1s linear;
}

/* === SIDEBAR === */
.sidebar {
    position: fixed;
    left: 0; top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1.25rem;
    z-index: 100;
    overflow-y: auto;
    transition: transform 0.35s var(--ease);
    scrollbar-width: none;
}
.sidebar::-webkit-scrollbar { display: none; }

/* Profile */
.sidebar-profile { text-align: center; margin-bottom: 2rem; width: 100%; }

.sidebar-initials {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: var(--gradient-btn);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; font-weight: 800; color: white;
    margin: 0 auto 0.9rem;
    box-shadow: 0 0 22px rgba(14,165,233,0.4);
    letter-spacing: 0.05em;
}
.sidebar-name {
    font-size: 1rem; font-weight: 700;
    color: var(--white); margin-bottom: 0.25rem;
}
.sidebar-title {
    font-size: 0.7rem; color: var(--accent-cyan);
    letter-spacing: 0.15em; font-weight: 600;
    text-transform: uppercase;
}

/* Nav links */
.nav-links { width: 100%; flex: 1; padding: 0.5rem 0; }
.nav-links li { margin-bottom: 2px; }
.nav-link {
    display: flex; align-items: center; gap: 0.65rem;
    padding: 0.65rem 0.9rem;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.82rem; font-weight: 500;
    transition: all 0.25s var(--ease);
    position: relative; overflow: hidden;
    border: 1px solid transparent;
}
.nav-link::after {
    content: '';
    position: absolute; left: 0; top: 0;
    height: 100%; width: 3px;
    background: var(--gradient-main);
    border-radius: 0 3px 3px 0;
    transform: scaleY(0);
    transition: transform 0.25s var(--ease);
}
.nav-link:hover { color: var(--white); background: rgba(255,255,255,0.05); }
.nav-link.active {
    color: var(--white);
    background: rgba(0,212,255,0.08);
    border-color: var(--border-accent);
}
.nav-link.active::after { transform: scaleY(1); }
.nav-link i { width: 16px; font-size: 0.85rem; flex-shrink: 0; }

/* Socials */
.sidebar-socials {
    display: flex; gap: 0.6rem;
    margin-top: 1.5rem; padding-top: 1.5rem;
    border-top: 1px solid var(--border-glass);
    width: 100%; justify-content: center;
}
.social-btn {
    width: 34px; height: 34px; border-radius: 50%;
    border: 1px solid var(--border-glass);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-secondary); font-size: 0.82rem;
    transition: all 0.25s var(--ease);
}
.social-btn:hover {
    border-color: var(--accent-cyan); color: var(--accent-cyan);
    background: rgba(32,178,170,0.12);
    transform: translateY(-2px); box-shadow: 0 0 14px rgba(32,178,170,0.3);
}

/* Mobile toggle */
.mobile-toggle {
    display: none;
    position: fixed; top: 1rem; left: 1rem; z-index: 200;
    background: var(--sidebar-bg); border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm); padding: 0.5rem 0.55rem;
    cursor: pointer; flex-direction: column; gap: 5px;
    backdrop-filter: blur(10px);
}
.mobile-toggle span {
    width: 20px; height: 2px; background: var(--text-primary);
    border-radius: 2px; display: block; transition: all 0.3s var(--ease);
}
.mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Sidebar overlay (mobile) */
.sidebar-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 99;
    opacity: 0; pointer-events: none;
    transition: opacity 0.3s;
}
.sidebar-overlay.active { opacity: 1; pointer-events: all; }

/* === MAIN CONTENT === */
.main-content { margin-left: var(--sidebar-width); min-height: 100vh; }

/* === SECTIONS === */
.section { padding: 5rem 3.5rem; max-width: 1080px; margin: 0 auto; }

.section-header { margin-bottom: 3rem; text-align: center; }
.section-title {
    font-family: var(--font-serif);
    font-size: clamp(1.9rem, 3vw, 2.6rem);
    font-weight: 500; color: var(--white);
    margin-bottom: 0.5rem; line-height: 1.2;
    letter-spacing: 0.01em;
}
.title-accent {
    background: var(--gradient-main);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-subtitle { color: var(--text-secondary); font-size: 0.95rem; }

/* === HOME === */
.home-section {
    min-height: 100vh; display: flex; flex-direction: column;
    justify-content: center; padding-top: 4rem; padding-bottom: 2rem;
}
.home-content {
    display: flex; align-items: center;
    justify-content: space-between; gap: 3rem; margin-bottom: 3rem;
}
.home-text { flex: 1; max-width: 540px; }
.greeting { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 0.6rem; }
.hero-name {
    font-family: var(--font-serif);
    font-size: clamp(2.4rem, 4.5vw, 3.6rem);
    font-weight: 600; line-height: 1.1;
    letter-spacing: -0.01em;
    color: var(--white); margin-bottom: 0.9rem;
}
.hero-roles { font-size: 1.2rem; margin-bottom: 1.3rem; color: var(--text-secondary); }
.role-typewriter {
    color: var(--accent-cyan); font-weight: 600;
    border-right: 2px solid var(--accent-cyan);
    padding-right: 2px;
    animation: blink 0.75s step-end infinite;
}
@keyframes blink {
    from,to { border-color: transparent; }
    50%     { border-color: var(--accent-cyan); }
}
.hero-bio {
    color: var(--text-secondary); font-size: 0.97rem;
    line-height: 1.75; margin-bottom: 2rem; max-width: 460px;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }

.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.72rem 1.7rem; border-radius: 50px;
    font-size: 0.88rem; font-weight: 600;
    cursor: pointer; transition: all 0.25s var(--ease); border: none;
}
.btn-primary {
    background: var(--gradient-btn); color: #1c4a48;
    box-shadow: 0 4px 18px rgba(0,0,0,0.2);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,0.3); }
.btn-outline {
    background: transparent; color: var(--white);
    border: 1px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
    background: rgba(14,165,233,0.1); border-color: var(--btn-color);
    color: var(--btn-color);
    transform: translateY(-2px);
}

/* Companies */
.hero-companies { margin-top: 0.5rem; }
.companies-label {
    font-size: 0.75rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.7rem;
}
.companies-row { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.company-logo-link { opacity: 0.65; filter: grayscale(0.2); transition: all 0.25s var(--ease); }
.company-logo-link:hover { opacity: 1; filter: grayscale(0); transform: translateY(-2px); }
.company-logo {
    height: 40px; width: auto; max-width: 110px; object-fit: contain;
    border-radius: var(--radius-sm); background: rgba(255,255,255,0.08);
    padding: 4px 8px;
}

/* Open Source Highlight */
.oss-highlight { margin-top: 1.6rem; }

.oss-label {
    display: flex; align-items: center; gap: 0.45rem;
    font-size: 0.7rem; font-weight: 700;
    color: var(--accent-cyan);
    text-transform: uppercase; letter-spacing: 0.12em;
    margin-bottom: 0.65rem;
}
.oss-label i { font-size: 0.78rem; }

.oss-card {
    display: flex; align-items: center; gap: 1rem;
    padding: 0.9rem 1.15rem;
    background: linear-gradient(120deg, rgba(126,205,199,0.1), rgba(212,184,150,0.08));
    border-radius: var(--radius-md);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: all 0.35s var(--ease);
    max-width: 420px;
    position: relative;
    overflow: hidden;
    /* Glowing gradient border via box-shadow + pseudo */
    box-shadow:
        0 0 0 1.5px rgba(255,255,255,0.75),
        0 4px 20px rgba(255,255,255,0.1),
        0 0 40px rgba(255,255,255,0.06);
}

/* Animated shimmer sweep */
.oss-card::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 60%; height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0,212,255,0.08),
        transparent
    );
    animation: ossSweep 3.5s ease-in-out infinite;
    pointer-events: none;
}
@keyframes ossSweep {
    0%   { left: -100%; }
    50%  { left: 140%; }
    100% { left: 140%; }
}

/* Pulsing outer glow */
.oss-card::after {
    content: '';
    position: absolute; inset: -1px;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid transparent;
    background-image: linear-gradient(120deg, rgba(255,255,255,0.9), rgba(203,213,225,0.7));
    background-origin: border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    animation: ossGlowPulse 3s ease-in-out infinite;
    pointer-events: none;
}
@keyframes ossGlowPulse {
    0%,100% { opacity: 0.5; }
    50%     { opacity: 1; }
}

.oss-card:hover {
    transform: translateY(-3px);
    box-shadow:
        0 0 0 2px rgba(255,255,255,0.95),
        0 8px 32px rgba(255,255,255,0.15),
        0 0 60px rgba(255,255,255,0.08);
}

.oss-logo-wrap {
    width: 40px; height: 40px; border-radius: var(--radius-sm);
    background: #161b22;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: 0 0 12px rgba(0,212,255,0.15);
}
.oss-gh-icon { font-size: 1.35rem; color: white; }

.oss-info { flex: 1; min-width: 0; }
.oss-org {
    font-size: 0.85rem; font-weight: 700;
    background: linear-gradient(90deg, #7ecdc7, #d4b896);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.18rem;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.oss-desc {
    font-size: 0.72rem; color: var(--text-secondary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.oss-arrow {
    font-size: 0.72rem;
    color: var(--accent-cyan);
    flex-shrink: 0; transition: all 0.25s;
    filter: drop-shadow(0 0 4px rgba(0,212,255,0.6));
}
.oss-card:hover .oss-arrow { transform: translate(3px,-3px); }

/* Hero visual (badges grid replacing photo) */
.home-visual {
    flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
}
.hero-badges-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.9rem;
}
.hero-badge {
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 0.5rem;
    padding: 1.4rem 1.6rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--white); font-size: 0.82rem; font-weight: 600;
    transition: all 0.3s var(--ease);
    cursor: default;
    min-width: 110px;
}
.hero-badge i {
    font-size: 1.6rem;
    background: var(--gradient-main);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-badge:nth-child(1) { animation: floatA 6s ease-in-out infinite; }
.hero-badge:nth-child(2) { animation: floatB 7s ease-in-out infinite 0.4s; }
.hero-badge:nth-child(3) { animation: floatA 6.5s ease-in-out infinite 0.8s; }
.hero-badge:nth-child(4) { animation: floatB 7.5s ease-in-out infinite 0.2s; }
.hero-badge:nth-child(5) { animation: floatA 8s ease-in-out infinite 0.6s; }
.hero-badge:nth-child(6) { animation: floatB 6.8s ease-in-out infinite 1s; }
.hero-badge:hover {
    border-color: var(--border-accent);
    background: rgba(0,212,255,0.08);
    transform: translateY(-4px);
    box-shadow: var(--glow-cyan);
}
@keyframes floatA {
    0%,100% { transform: translateY(0); }
    50%     { transform: translateY(-10px); }
}
@keyframes floatB {
    0%,100% { transform: translateY(0) translateX(0); }
    33%     { transform: translateY(-7px) translateX(3px); }
    66%     { transform: translateY(3px) translateX(-3px); }
}

/* Stats */
.stats-row {
    display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center;
    padding: 2rem;
    background: rgba(255,255,255,0.03);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
}
.stat-item { text-align: center; flex: 1; min-width: 110px; padding: 0.75rem; }
.stat-number {
    font-size: 2.6rem; font-weight: 900; line-height: 1;
    background: var(--gradient-main);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-suffix { font-size: 1.4rem; font-weight: 700; color: var(--accent-cyan); }
.stat-label {
    font-size: 0.75rem; color: var(--text-secondary);
    margin-top: 0.35rem; text-transform: uppercase; letter-spacing: 0.05em;
}

/* === SKILLS === */
.skills-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem; }
.skill-category {
    background: var(--card-glass); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); padding: 1.6rem;
    backdrop-filter: blur(10px); transition: all 0.3s var(--ease);
}
.skill-category:hover {
    border-color: var(--border-accent);
    background: rgba(0,212,255,0.03);
    transform: translateY(-3px); box-shadow: var(--glow-cyan);
}
.skill-cat-title {
    font-size: 0.9rem; font-weight: 600; color: var(--white);
    margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem;
}
.skill-cat-title i { color: var(--accent-cyan); }
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.skill-tag {
    padding: 0.3rem 0.85rem;
    background: rgba(126,205,199,0.1); border: 1px solid rgba(126,205,199,0.2);
    border-radius: 50px; font-size: 0.78rem; color: var(--text-secondary);
    font-weight: 500; transition: all 0.2s;
}
.skill-tag:hover { background: rgba(126,205,199,0.2); color: var(--accent-cyan); border-color: var(--accent-cyan); }

/* === EXPERIENCE / TIMELINE === */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
    content: ''; position: absolute;
    left: 0; top: 0; bottom: 0; width: 2px;
    background: linear-gradient(to bottom, #7ecdc7, #d4b896, transparent);
    border-radius: 2px;
}
.timeline-item { position: relative; margin-bottom: 2.5rem; }
.timeline-dot {
    position: absolute; left: -2.35rem; top: 1.5rem;
    width: 12px; height: 12px;
    background: var(--accent-cyan); border-radius: 50%;
    border: 2.5px solid var(--bg-dark);
    box-shadow: 0 0 12px rgba(126,205,199,0.7); z-index: 1;
}
.timeline-card {
    background: var(--card-bg); border-radius: var(--radius-lg);
    padding: 1.75rem; box-shadow: var(--shadow-md);
    transition: all 0.3s var(--ease);
}
.timeline-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0,212,255,0.07);
}
.timeline-header {
    display: flex; justify-content: space-between;
    align-items: flex-start; gap: 1rem; margin-bottom: 0.4rem;
}
.timeline-role { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 600; color: #111; margin-bottom: 0.2rem; }
.timeline-company { font-size: 0.875rem; color: #555; display: flex; align-items: center; gap: 0.35rem; }
.timeline-badge {
    padding: 0.22rem 0.7rem; border-radius: 50px; font-size: 0.7rem; font-weight: 600;
    background: rgba(126,205,199,0.15); color: var(--accent-cyan);
    border: 1px solid rgba(126,205,199,0.3); white-space: nowrap; flex-shrink: 0;
}
.timeline-date {
    font-size: 0.8rem; color: #888; margin-bottom: 1rem;
    display: flex; align-items: center; gap: 0.4rem;
}
.timeline-list { margin-bottom: 1rem; }
.timeline-list li {
    font-size: 0.875rem; color: #444;
    padding: 0.28rem 0 0.28rem 1.2rem; position: relative;
}
.timeline-list li::before {
    content: '▸'; position: absolute; left: 0;
    color: var(--accent-cyan); font-size: 0.75rem; top: 0.32rem;
}
.timeline-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag {
    padding: 0.22rem 0.6rem; border-radius: 50px;
    font-size: 0.72rem; font-weight: 500;
    background: rgba(126,205,199,0.12); color: #2d8a84;
    border: 1px solid rgba(126,205,199,0.25);
}

/* === EDUCATION === */
.education-list { display: flex; flex-direction: column; gap: 1.25rem; }
.edu-card {
    background: var(--card-bg); border-radius: var(--radius-lg);
    overflow: hidden; box-shadow: var(--shadow-md); transition: all 0.3s var(--ease);
}
.edu-card:hover { box-shadow: var(--shadow-lg); }
.edu-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.4rem 1.75rem; cursor: pointer; gap: 1rem;
    transition: background 0.2s;
}
.edu-header:hover { background: rgba(0,0,0,0.02); }
.edu-logo-info { display: flex; align-items: center; gap: 1.1rem; flex: 1; }
.edu-logo {
    width: 65px; height: 65px; object-fit: contain;
    border-radius: var(--radius-sm); border: 1px solid #eee;
    padding: 4px; background: #fff; flex-shrink: 0;
}
.edu-degree { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 600; color: #111; margin-bottom: 0.2rem; }
.edu-school { font-size: 0.82rem; color: #555; margin-bottom: 0.1rem; }
.edu-date { font-size: 0.78rem; color: #888; }
.edu-toggle-btn {
    width: 34px; height: 34px; border-radius: 50%;
    border: 1.5px solid #ddd; background: transparent;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    color: #888; font-size: 0.8rem; transition: all 0.3s var(--ease); flex-shrink: 0;
}
.edu-card.open .edu-toggle-btn {
    transform: rotate(180deg); background: var(--gradient-btn);
    border-color: var(--btn-color); color: white;
    box-shadow: 0 0 14px rgba(14,165,233,0.4);
}
.edu-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.edu-card.open .edu-body { max-height: 500px; }
.edu-body-inner {
    padding: 1.25rem 1.75rem 1.5rem;
    border-top: 1px solid #f0f0f0;
    display: flex; flex-direction: column; gap: 0.7rem;
}
.edu-body-inner p { font-size: 0.875rem; color: #555; line-height: 1.7; }
.edu-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; padding-top: 0.3rem; }

/* === PROJECTS === */
.filter-container {
    display: flex; justify-content: center;
    gap: 0.65rem; flex-wrap: wrap; margin-bottom: 2.5rem;
}
.filter-btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.55rem 1.25rem;
    background: var(--card-glass); border: 1px solid var(--border-glass);
    border-radius: 50px; color: var(--text-secondary);
    font-size: 0.83rem; font-weight: 500; cursor: pointer;
    transition: all 0.25s var(--ease); backdrop-filter: blur(10px);
}
.filter-btn:hover { border-color: var(--border-accent); color: var(--white); background: rgba(0,212,255,0.05); }
.filter-btn.active {
    background: var(--gradient-btn); border-color: transparent;
    color: var(--white); box-shadow: 0 4px 18px rgba(14,165,233,0.35);
}

.projects-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.4rem; }
.project-card {
    background: var(--card-bg); border-radius: var(--radius-lg);
    overflow: hidden; box-shadow: var(--shadow-md);
    transition: all 0.3s var(--ease);
    display: flex; flex-direction: column;
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.project-card.hidden { display: none; }

.project-img { position: relative; height: 175px; overflow: hidden; }
.project-img img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s ease;
}
.project-card:hover .project-img img { transform: scale(1.08); }

.project-overlay {
    position: absolute; inset: 0;
    background: rgba(0,0,0,0.62);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity 0.3s;
}
.project-card:hover .project-overlay { opacity: 1; }
.overlay-btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.55rem 1.1rem; background: white; color: #111;
    border-radius: 50px; font-size: 0.82rem; font-weight: 600;
    transition: all 0.2s;
}
.overlay-btn:hover { background: var(--accent-cyan); color: white; }

.project-cat-badge {
    position: absolute; top: 10px; left: 10px;
    padding: 0.22rem 0.65rem;
    background: rgba(0,0,0,0.65); color: var(--accent-cyan);
    font-size: 0.7rem; font-weight: 600; border-radius: 50px;
    letter-spacing: 0.04em; border: 1px solid rgba(0,212,255,0.3);
}
.project-info { padding: 1.4rem; flex: 1; display: flex; flex-direction: column; }
.project-title { font-family: var(--font-serif); font-size: 1.05rem; font-weight: 600; color: #111; margin-bottom: 0.45rem; }
.project-desc { font-size: 0.84rem; color: #666; line-height: 1.6; flex: 1; margin-bottom: 0.9rem; }
.project-tech { display: flex; flex-wrap: wrap; gap: 0.3rem; margin-bottom: 1rem; }
.tech-tag {
    padding: 0.18rem 0.55rem; border-radius: 50px;
    font-size: 0.7rem; background: #eaf5f4; color: #1c5050;
    border: 1px solid #b2dbd8; font-weight: 500;
}
.project-link-btn {
    display: inline-flex; align-items: center; gap: 0.45rem;
    padding: 0.55rem 1.1rem; background: var(--gradient-btn); color: white;
    border-radius: var(--radius-sm); font-size: 0.78rem; font-weight: 600;
    transition: all 0.2s; width: fit-content;
    box-shadow: 0 3px 12px rgba(14,165,233,0.3);
}
.project-link-btn:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(14,165,233,0.4); }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.4s ease forwards; }

/* === CERTIFICATIONS === */
.cert-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem; }
.cert-card {
    background: var(--card-bg); border-radius: var(--radius-lg);
    overflow: hidden; box-shadow: var(--shadow-md);
    display: flex; align-items: stretch; transition: all 0.3s var(--ease);
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.cert-logo-wrap {
    width: 130px; flex-shrink: 0;
    background: #f8f9fc; display: flex;
    align-items: center; justify-content: center; padding: 1.3rem;
}
.cert-logo { width: 100%; max-width: 85px; height: auto; object-fit: contain; }
.cert-info { padding: 1.4rem; flex: 1; display: flex; flex-direction: column; }
.cert-name { font-family: var(--font-serif); font-size: 1.05rem; font-weight: 600; color: #111; margin-bottom: 0.45rem; }
.cert-desc { font-size: 0.83rem; color: #666; line-height: 1.6; flex: 1; margin-bottom: 0.9rem; }
.cert-link {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-size: 0.8rem; font-weight: 600; color: var(--btn-color);
    transition: all 0.2s; width: fit-content;
}
.cert-link:hover { color: var(--btn-color-2); gap: 0.6rem; }

/* IAPP cert logo */
.cert-logo-iapp {
    background: linear-gradient(160deg, #1a2744 0%, #0d1f3c 100%);
    width: 130px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
}
.cert-logo-icon-wrap {
    display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.cert-logo-text-badge {
    font-size: 1.5rem; font-weight: 900; letter-spacing: 1px;
    color: #fff;
    background: linear-gradient(135deg, #e84b30, #c73820);
    padding: 0.25rem 0.55rem; border-radius: 6px;
    line-height: 1;
}
.cert-logo-sub {
    font-size: 0.68rem; font-weight: 700; letter-spacing: 2px;
    color: rgba(255,255,255,0.7); text-transform: uppercase;
}
.cert-badge-new {
    display: inline-block; font-size: 0.62rem; font-weight: 700;
    background: linear-gradient(135deg, #e84b30, #c73820);
    color: #fff; padding: 1px 6px; border-radius: 4px;
    vertical-align: middle; margin-left: 6px; letter-spacing: 0.5px;
}

/* === BLOGS === */
.blog-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem; }
.blog-card {
    background: var(--card-bg); border-radius: var(--radius-lg);
    overflow: hidden; box-shadow: var(--shadow-md);
    transition: all 0.3s var(--ease); display: flex; flex-direction: column;
}
.blog-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.blog-img-wrap { position: relative; height: 195px; overflow: hidden; }
.blog-img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.blog-card:hover .blog-img { transform: scale(1.06); }
.blog-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to bottom, transparent 40%, rgba(0,0,0,0.38));
}
.blog-info { padding: 1.4rem; flex: 1; display: flex; flex-direction: column; }
.blog-tag {
    display: inline-block; padding: 0.2rem 0.6rem;
    background: rgba(212,184,150,0.15); color: #a07840;
    font-size: 0.7rem; font-weight: 600; border-radius: 50px;
    letter-spacing: 0.05em; text-transform: uppercase;
    margin-bottom: 0.7rem; border: 1px solid rgba(212,184,150,0.3);
}
.blog-title { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 600; color: #111; margin-bottom: 0.55rem; line-height: 1.4; }
.blog-excerpt { font-size: 0.84rem; color: #666; line-height: 1.6; flex: 1; margin-bottom: 1rem; }
.blog-read-btn {
    display: inline-flex; align-items: center; gap: 0.45rem;
    font-size: 0.84rem; font-weight: 600; color: var(--btn-color);
    transition: all 0.2s; width: fit-content;
}
.blog-read-btn:hover { color: var(--btn-color-2); gap: 0.65rem; }

/* === CONTACT === */
.contact-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.contact-info { display: flex; flex-direction: column; gap: 0.9rem; }
.contact-card {
    background: var(--card-glass); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); padding: 1.4rem;
    display: flex; align-items: center; gap: 1.1rem;
    backdrop-filter: blur(10px); transition: all 0.25s var(--ease);
}
.contact-card:hover {
    border-color: var(--border-accent);
    background: rgba(0,212,255,0.04);
    transform: translateX(5px);
}
.contact-icon-wrap {
    width: 46px; height: 46px; border-radius: var(--radius-md);
    background: var(--gradient-btn);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; color: white; flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(14,165,233,0.35);
}
.contact-details h3 {
    font-size: 0.72rem; font-weight: 600; color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.2rem;
}
.contact-value { font-size: 0.9rem; color: var(--white); font-weight: 500; transition: color 0.2s; }
.contact-value:hover { color: var(--accent-cyan); }

.contact-cta { display: flex; }
.cta-card {
    background: var(--card-glass); border: 1px solid rgba(14,165,233,0.35);
    border-radius: var(--radius-xl); padding: 2.5rem;
    text-align: center; backdrop-filter: blur(10px);
    flex: 1; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 1rem;
    transition: all 0.3s var(--ease);
}
.cta-card:hover { box-shadow: 0 0 30px rgba(14,165,233,0.25); }
.cta-icon {
    width: 58px; height: 58px; border-radius: 50%;
    background: var(--gradient-btn);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; color: white;
    box-shadow: 0 8px 24px rgba(14,165,233,0.4);
}
.cta-card h3 { font-family: var(--font-serif); font-size: 1.35rem; font-weight: 500; color: var(--white); }
.cta-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.65; }

/* === FOOTER === */
.footer {
    text-align: center; padding: 2rem 3.5rem;
    color: var(--text-muted); font-size: 0.82rem;
    border-top: 1px solid var(--border-glass); margin-top: 1rem;
}
.footer-name {
    background: var(--gradient-main);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; font-weight: 600;
}

/* === ABOUT SECTION === */
.about-grid {
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: start;
}
.about-para {
    color: var(--text-secondary); font-size: 0.96rem; line-height: 1.85;
    margin-bottom: 1.2rem;
}
.about-para strong { color: var(--white); font-weight: 600; }
.about-highlights {
    display: flex; flex-direction: column; gap: 0.65rem; margin-top: 1.8rem;
}
.about-highlight-item {
    display: flex; align-items: center; gap: 0.75rem;
    font-size: 0.85rem; color: var(--text-secondary);
}
.about-highlight-item i {
    width: 18px; color: var(--btn-color); font-size: 0.9rem; flex-shrink: 0;
}
.about-values {
    display: flex; flex-direction: column; gap: 1.1rem;
}
.value-card {
    background: var(--card-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 1.3rem 1.4rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s var(--ease);
}
.value-card:hover {
    border-color: rgba(14,165,233,0.3);
    background: rgba(14,165,233,0.06);
    transform: translateX(4px);
}
.value-icon {
    width: 38px; height: 38px;
    background: var(--gradient-btn);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.95rem; color: white;
    margin-bottom: 0.7rem;
}
.value-card h4 {
    font-family: var(--font-serif); font-size: 1rem; font-weight: 500; color: var(--white); margin-bottom: 0.4rem;
}
.value-card p {
    font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6;
}

/* === SCROLL REVEAL === */
.reveal {
    opacity: 0; transform: translateY(36px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal:nth-child(1) { transition-delay: 0.05s; }
.reveal:nth-child(2) { transition-delay: 0.13s; }
.reveal:nth-child(3) { transition-delay: 0.21s; }
.reveal:nth-child(4) { transition-delay: 0.29s; }
.reveal:nth-child(5) { transition-delay: 0.37s; }

/* Timeline items slide in from left */
.timeline-item.reveal { transform: translateX(-30px) translateY(20px); }
.timeline-item.reveal.revealed { transform: translateX(0) translateY(0); }

/* === HERO ENTRANCE ANIMATION === */
@keyframes heroFadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
.greeting       { animation: heroFadeUp 0.7s var(--ease) 0.1s both; }
.hero-name      { animation: heroFadeUp 0.7s var(--ease) 0.22s both; }
.hero-roles     { animation: heroFadeUp 0.7s var(--ease) 0.34s both; }
.hero-bio       { animation: heroFadeUp 0.7s var(--ease) 0.44s both; }
.hero-actions   { animation: heroFadeUp 0.7s var(--ease) 0.54s both; }
.hero-companies { animation: heroFadeUp 0.7s var(--ease) 0.64s both; }
.oss-highlight  { animation: heroFadeUp 0.7s var(--ease) 0.74s both; }

/* === SECTION TITLE ANIMATED UNDERLINE === */
.section-header { position: relative; }
.section-title::after {
    content: '';
    display: block;
    height: 3px;
    width: 0;
    margin: 0.55rem auto 0;
    background: var(--gradient-btn);
    border-radius: 2px;
    transition: width 0.85s cubic-bezier(0.22, 1, 0.36, 1) 0.2s;
}
/* Section header underline animates in only after reveal */
.section-header.reveal.revealed .section-title::after { width: 60px; }

.section-header { opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.section-header.reveal { opacity: 0; transform: translateY(20px); }
.section-header.reveal.revealed { opacity: 1; transform: translateY(0); }

/* === BUTTON SHIMMER === */
.btn-primary {
    position: relative; overflow: hidden;
}
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 60%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.22), transparent);
    transform: skewX(-20deg);
    animation: btnShimmer 3.5s ease-in-out infinite;
}
@keyframes btnShimmer {
    0%   { left: -100%; }
    40%  { left: 140%; }
    100% { left: 140%; }
}

/* === PROJECT CARD 3D HOVER TILT === */
.project-card {
    transform-style: preserve-3d;
    perspective: 800px;
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.project-card:hover {
    transform: translateY(-8px) rotateX(3deg) rotateY(-2deg);
    box-shadow: 0 24px 60px rgba(32,178,170,0.15), 0 8px 24px rgba(0,0,0,0.4);
}

/* === SKILL CARD HOVER GLOW === */
.skill-card {
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.skill-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 12px 40px rgba(14,165,233,0.2), 0 0 0 1px rgba(14,165,233,0.25);
}

/* === CERT CARD HOVER LIFT === */
.cert-card {
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.cert-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(32,178,170,0.12), 0 4px 20px rgba(0,0,0,0.3);
}

/* === BLOG CARD SHIMMER BORDER === */
.blog-card {
    position: relative; overflow: hidden;
}
.blog-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(126,205,199,0), rgba(126,205,199,0.4), rgba(212,184,150,0.4), rgba(126,205,199,0));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s var(--ease);
    background-size: 300% 300%;
    animation: borderRotate 4s linear infinite paused;
}
.blog-card:hover::before {
    opacity: 1;
    animation-play-state: running;
}
@keyframes borderRotate {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* === STAT NUMBER GLOW PULSE === */
.stat-number {
    display: block;
    transition: text-shadow 0.4s var(--ease);
}
.stat-number.counted {
    animation: statGlow 2s ease-in-out forwards;
}
@keyframes statGlow {
    0%   { text-shadow: none; }
    40%  { text-shadow: 0 0 20px rgba(126,205,199,0.7), 0 0 40px rgba(126,205,199,0.35); }
    100% { text-shadow: 0 0 10px rgba(126,205,199,0.3); }
}

/* === SIDEBAR INITIALS PULSE RING === */
.sidebar-initials {
    position: relative;
}
.sidebar-initials::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: var(--gradient-btn);
    opacity: 0.35;
    animation: ringPulse 2.5s ease-in-out infinite;
    z-index: -1;
}
@keyframes ringPulse {
    0%, 100% { transform: scale(1);   opacity: 0.35; }
    50%       { transform: scale(1.15); opacity: 0;   }
}

/* === NAV LINK HOVER SLIDE === */
.nav-link:hover::after { transform: scaleY(1); }

/* === LEARNING NAV — fire icon + live dot === */
.nav-link-learning i {
    color: #ff7a3d;
    filter: drop-shadow(0 0 6px rgba(255,122,61,0.6));
    animation: fireFlicker 2.4s ease-in-out infinite;
}
@keyframes fireFlicker {
    0%, 100% { filter: drop-shadow(0 0 5px rgba(255,122,61,0.55)); transform: scale(1); }
    40%       { filter: drop-shadow(0 0 9px rgba(255,160,60,0.8));  transform: scale(1.12) rotate(-4deg); }
    70%       { filter: drop-shadow(0 0 6px rgba(255,80,30,0.65));  transform: scale(1.05) rotate(3deg); }
}
.nav-live-dot {
    display: inline-block;
    width: 7px; height: 7px;
    background: #ff7a3d;
    border-radius: 50%;
    margin-left: auto;
    flex-shrink: 0;
    box-shadow: 0 0 0 0 rgba(255,122,61,0.5);
    animation: livePulse 2s ease-in-out infinite;
}
@keyframes livePulse {
    0%   { box-shadow: 0 0 0 0   rgba(255,122,61,0.6); }
    70%  { box-shadow: 0 0 0 7px rgba(255,122,61,0);   }
    100% { box-shadow: 0 0 0 0   rgba(255,122,61,0);   }
}

/* === TIMELINE DOT PULSE === */
.timeline-dot {
    animation: dotPulse 3s ease-in-out infinite;
}
@keyframes dotPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(126,205,199,0.5); }
    50%       { box-shadow: 0 0 0 8px rgba(126,205,199,0); }
}

/* === RESPONSIVE === */
@media (max-width: 1100px) {
    :root { --sidebar-width: 220px; }
    .projects-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 900px) {
    .cert-grid, .blog-grid, .contact-wrapper { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay { display: block; }
    .mobile-toggle { display: flex; }
    .main-content { margin-left: 0; }
    #scroll-progress { left: 0; }
    .section { padding: 4rem 1.5rem; }
    .home-content { flex-direction: column-reverse; text-align: center; gap: 2.5rem; }
    .hero-bio { margin: 0 auto 2rem; }
    .hero-actions { justify-content: center; }
    .companies-row { justify-content: center; }
    .skills-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .cert-card { flex-direction: column; }
    .cert-logo-wrap { width: 100%; height: 110px; }
    .home-visual { display: flex; justify-content: center; }
    .profile-photo-wrap { width: 200px; height: 270px; }
    .avatar-wrap { width: 180px; height: 230px; }
    .about-grid { grid-template-columns: 1fr; }
    .availability-badge { font-size: 0.72rem; }
}

@media (max-width: 480px) {
    .hero-name { font-size: 2.1rem; }
    .stats-row { display: grid; grid-template-columns: repeat(2,1fr); }
    .timeline { padding-left: 1.5rem; }
    .timeline-dot { left: -1.85rem; }
}

/* === PROFILE PHOTO (Hero Visual) === */
.profile-photo-wrap {
    position: relative;
    width: 300px; height: 400px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}

/* Avatar */
.avatar-wrap {
    position: relative; z-index: 2;
    width: 260px; height: 340px;
    display: flex; align-items: center; justify-content: center;
    animation: avatarFloat 5s ease-in-out infinite;
    filter: drop-shadow(0 0 30px rgba(126,205,199,0.3)) drop-shadow(0 20px 40px rgba(0,0,0,0.4));
}
.boy-avatar {
    width: 100%; height: 100%;
    overflow: visible;
}
@keyframes avatarFloat {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-12px); }
}

/* Eye blink */
.avatar-eye-l, .avatar-eye-r {
    animation: eyeBlink 4s ease-in-out infinite;
    transform-origin: center;
}
.avatar-eye-r { animation-delay: 0.07s; }
@keyframes eyeBlink {
    0%, 90%, 100% { transform: scaleY(1); }
    94%, 96%      { transform: scaleY(0.1); }
}

/* Arms typing */
.avatar-arm-l {
    transform-origin: 58px 152px;
    animation: armTypL 0.6s ease-in-out infinite alternate;
}
.avatar-arm-r {
    transform-origin: 178px 152px;
    animation: armTypR 0.6s ease-in-out infinite alternate;
}
.avatar-hand-l { animation: armTypL 0.6s ease-in-out infinite alternate; }
.avatar-hand-r { animation: armTypR 0.6s ease-in-out infinite alternate; }
@keyframes armTypL {
    from { transform: rotate(-8deg) translateY(0); }
    to   { transform: rotate(4deg)  translateY(4px); }
}
@keyframes armTypR {
    from { transform: rotate(8deg)  translateY(4px); }
    to   { transform: rotate(-4deg) translateY(0); }
}

/* Code lines cascade */
.avatar-code-1 { animation: codeFlash 2.4s ease-in-out infinite 0s; }
.avatar-code-2 { animation: codeFlash 2.4s ease-in-out infinite 0.4s; }
.avatar-code-3 { animation: codeFlash 2.4s ease-in-out infinite 0.8s; }
.avatar-code-4 { animation: codeFlash 2.4s ease-in-out infinite 1.2s; }
@keyframes codeFlash {
    0%, 100% { opacity: 0.3; }
    50%       { opacity: 1; }
}

/* Cursor blink on screen */
.avatar-cursor { animation: cursorBlink 1s step-end infinite; }
@keyframes cursorBlink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}
.photo-ring {
    position: absolute;
    pointer-events: none;
}
.photo-ring-1 {
    inset: -12px;
    border-radius: 28px;
    border: 1.5px solid rgba(126,205,199,0.25);
    animation: ringRotate 18s linear infinite;
    background: transparent;
}
.photo-ring-1::before {
    content: '';
    position: absolute;
    top: -4px; left: 50%;
    width: 8px; height: 8px; margin-left: -4px;
    border-radius: 50%;
    background: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
}
.photo-ring-2 {
    inset: -4px;
    border-radius: 24px;
    border: 1px dashed rgba(167,139,250,0.22);
    animation: ringRotate 11s linear infinite reverse;
}
@keyframes ringRotate {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* Floating orbit badges */
.orbit-badge {
    position: absolute; z-index: 3;
    width: 46px; height: 46px;
    border-radius: 50%;
    background: rgba(14,42,42,0.92);
    border: 1.5px solid rgba(126,205,199,0.45);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; color: var(--accent-cyan);
    box-shadow: 0 0 18px rgba(126,205,199,0.25), 0 4px 12px rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.orbit-badge:hover {
    transform: scale(1.2) !important;
    box-shadow: 0 0 28px rgba(0,212,255,0.45), 0 6px 16px rgba(0,0,0,0.4);
}
.ob-1 { top:  30px;  right: -20px; animation: floatBadge 5.2s ease-in-out infinite; }
.ob-2 { top:  30px;  left:  -20px; animation: floatBadge 6.5s ease-in-out infinite 0.7s; }
.ob-3 { top:  50%;   right: -22px; transform: translateY(-50%); animation: floatBadge 5.8s ease-in-out infinite 1.2s; }
.ob-4 { top:  50%;   left:  -22px; transform: translateY(-50%); animation: floatBadge 7s   ease-in-out infinite 0.3s; }
.ob-5 { bottom: 30px; right: -20px; animation: floatBadge 6.2s ease-in-out infinite 0.9s; }
@keyframes floatBadge {
    0%, 100% { translate: 0 0; }
    50%       { translate: 0 -8px; }
}

/* === CUSTOM CURSOR (desktop only) === */
@media (pointer: fine) {
    body { cursor: none; }
    a, button, .nav-link, .filter-btn, .project-card, .cert-card, .blog-card { cursor: none; }
}
#cursor-dot {
    position: fixed; z-index: 9999; pointer-events: none;
    width: 8px; height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s, transform 0.15s;
    opacity: 0;
    box-shadow: 0 0 10px var(--accent-cyan);
}
#cursor-ring {
    position: fixed; z-index: 9998; pointer-events: none;
    width: 34px; height: 34px;
    border: 1.5px solid rgba(126,205,199,0.55);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s, width 0.25s var(--ease), height 0.25s var(--ease), border-color 0.25s;
    opacity: 0;
}
#cursor-dot.visible   { opacity: 1; }
#cursor-ring.visible  { opacity: 1; }
#cursor-dot.clicking  { transform: translate(-50%, -50%) scale(0.6); }
#cursor-ring.hovering { width: 52px; height: 52px; border-color: rgba(167,139,250,0.6); }

/* === BACK TO TOP BUTTON === */
.back-to-top {
    position: fixed; bottom: 2rem; right: 2rem; z-index: 500;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--gradient-btn);
    border: none; color: white;
    font-size: 1rem; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 20px rgba(14,165,233,0.4);
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.25s;
    pointer-events: none;
}
.back-to-top.visible {
    opacity: 1; transform: translateY(0); pointer-events: all;
}
.back-to-top:hover {
    box-shadow: 0 8px 28px rgba(14,165,233,0.6);
    transform: translateY(-3px);
}

/* === CONTACT FORM === */
.contact-wrapper { grid-template-columns: 1fr 1.3fr; }

.contact-form-wrap {
    background: var(--card-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    padding: 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-label {
    font-size: 0.72rem; font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.06em;
}
.form-input, .form-textarea {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.88rem;
    transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
    width: 100%;
    outline: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-muted); }
.form-input:focus, .form-textarea:focus {
    border-color: rgba(0,212,255,0.5);
    box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
    background: rgba(0,212,255,0.04);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-submit-btn { align-self: flex-start; padding: 0.75rem 2rem; }
.form-note {
    font-size: 0.78rem; color: var(--text-muted);
    margin-top: -0.3rem;
}
.form-note a { color: var(--btn-color); transition: color 0.2s; }
.form-note a:hover { color: var(--accent-cyan); }

@media (max-width: 900px) {
    .contact-wrapper { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .back-to-top { bottom: 1.2rem; right: 1.2rem; width: 40px; height: 40px; font-size: 0.9rem; }
    .contact-form-wrap { padding: 1.5rem; }
}

/* ═══════════════════════════════════════════════════════
   LEARNING JOURNAL
═══════════════════════════════════════════════════════ */
.learning-section { max-width: 900px; }

/* ── Tab bar ── */
.learn-tabs {
    display: flex; gap: 0.5rem;
    margin-bottom: 2rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-glass);
    border-radius: 14px;
    padding: 6px;
    width: fit-content;
}
.learn-tab {
    padding: 0.55rem 1.3rem;
    border: none; outline: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font); font-size: 0.88rem; font-weight: 500;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.25s, color 0.25s;
    display: flex; align-items: center; gap: 0.45rem;
    white-space: nowrap;
}
.learn-tab:hover { color: var(--white); background: rgba(255,255,255,0.07); }
.learn-tab.active {
    background: var(--gradient-btn);
    color: #1c4a48;
    font-weight: 600;
    box-shadow: 0 2px 12px rgba(126,205,199,0.2);
}

/* ── Panels ── */
.learn-panel { display: none; }
.learn-panel.active { display: block; }

/* ── Daily Log cards ── */
.learn-cards { display: flex; flex-direction: column; gap: 1.4rem; }

.learn-card {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 1.6rem 1.8rem;
    border: 1px solid rgba(126,205,199,0.15);
    box-shadow: 0 4px 24px rgba(0,0,0,0.18);
    transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.learn-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.25), 0 0 0 1px rgba(126,205,199,0.2);
}

.learn-card-header {
    display: flex; align-items: flex-start;
    justify-content: space-between; gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}
.learn-card-meta { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.learn-date {
    font-size: 0.78rem; font-weight: 600;
    color: var(--accent-cyan);
    background: rgba(126,205,199,0.12);
    padding: 0.25rem 0.7rem; border-radius: 20px;
    letter-spacing: 0.04em;
}
.learn-category {
    font-size: 0.75rem; font-weight: 600;
    color: #d4b896;
    background: rgba(212,184,150,0.12);
    padding: 0.25rem 0.7rem; border-radius: 20px;
    letter-spacing: 0.04em;
}
.learn-topic {
    font-family: var(--font-serif);
    font-size: 1.2rem; font-weight: 600;
    color: #1c4a48; line-height: 1.3;
    margin-bottom: 0.6rem;
}
.learn-summary { font-size: 0.9rem; color: #4a5568; line-height: 1.75; margin-bottom: 1rem; }

.learn-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.learn-tag {
    font-size: 0.72rem; font-weight: 500;
    color: #2d6e6a;
    background: rgba(126,205,199,0.15);
    padding: 0.2rem 0.6rem; border-radius: 20px;
    border: 1px solid rgba(126,205,199,0.25);
}

.learn-toggle {
    font-size: 0.82rem; font-weight: 600; color: #1a6060;
    background: none; border: none; cursor: pointer; padding: 0;
    display: flex; align-items: center; gap: 0.35rem;
    transition: color 0.2s;
}
.learn-toggle:hover { color: var(--accent-cyan); }
.learn-toggle i { transition: transform 0.25s; }
.learn-toggle.open i { transform: rotate(180deg); }

.learn-details { display: none; margin-top: 1rem; }
.learn-details.open { display: block; }

.learn-key-points {
    list-style: none; padding: 0; margin: 0 0 1rem;
    display: flex; flex-direction: column; gap: 0.55rem;
}
.learn-key-points li {
    font-size: 0.88rem; color: #374151; line-height: 1.6;
    padding-left: 1.3rem; position: relative;
}
.learn-key-points li::before {
    content: '→';
    position: absolute; left: 0;
    color: #7ecdc7; font-weight: 700;
}
.learn-resources { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.5rem; }
.learn-resource {
    font-size: 0.78rem; font-weight: 500;
    color: #1a6060;
    background: rgba(126,205,199,0.1);
    border: 1px solid rgba(126,205,199,0.3);
    padding: 0.25rem 0.75rem; border-radius: 20px;
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
    display: flex; align-items: center; gap: 0.35rem;
}
.learn-resource:hover { background: rgba(126,205,199,0.25); color: #0e3d3d; }

/* ── Interview Q&A ── */
.interview-category { margin-bottom: 2rem; }
.interview-category-title {
    font-family: var(--font-serif);
    font-size: 1.05rem; font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.05em; text-transform: uppercase; font-size: 0.8rem;
    margin-bottom: 0.75rem;
    display: flex; align-items: center; gap: 0.5rem;
}
.interview-category-title::after {
    content: '';  flex: 1;
    height: 1px; background: var(--border-glass);
}

.qa-item {
    background: var(--card-bg);
    border-radius: 14px;
    margin-bottom: 0.75rem;
    border: 1px solid rgba(126,205,199,0.12);
    overflow: hidden;
    transition: box-shadow 0.25s;
}
.qa-item:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.15); }

.qa-question {
    width: 100%; text-align: left;
    background: none; border: none; cursor: pointer;
    padding: 1rem 1.3rem;
    display: flex; justify-content: space-between; align-items: center; gap: 1rem;
    font-size: 0.92rem; font-weight: 600; color: #1c4a48;
    line-height: 1.45;
    transition: background 0.2s;
}
.qa-question:hover { background: rgba(126,205,199,0.06); }
.qa-question i { color: #7ecdc7; flex-shrink: 0; transition: transform 0.25s; }
.qa-question.open i { transform: rotate(180deg); }

.qa-answer {
    display: none; padding: 0 1.3rem 1.1rem;
    font-size: 0.88rem; color: #374151; line-height: 1.8;
    border-top: 1px solid rgba(126,205,199,0.1);
}
.qa-answer.open { display: block; }

/* ── Research cards ── */
.research-card {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 1.6rem 1.8rem;
    border: 1px solid rgba(212,184,150,0.2);
    box-shadow: 0 4px 24px rgba(0,0,0,0.15);
    transition: transform 0.25s var(--ease);
}
.research-card:hover { transform: translateY(-3px); }
.research-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 0.8rem; flex-wrap: wrap; }
.research-status {
    font-size: 0.72rem; font-weight: 700;
    padding: 0.25rem 0.8rem; border-radius: 20px;
    letter-spacing: 0.05em; white-space: nowrap;
}
.research-status.inprogress { background: rgba(212,184,150,0.2); color: #a0763c; border: 1px solid rgba(212,184,150,0.4); }
.research-status.completed  { background: rgba(126,205,199,0.15); color: #1a6060; border: 1px solid rgba(126,205,199,0.3); }
.research-title {
    font-family: var(--font-serif);
    font-size: 1.2rem; font-weight: 600; color: #1c4a48; margin-bottom: 0.6rem;
}
.research-abstract { font-size: 0.88rem; color: #4a5568; line-height: 1.75; margin-bottom: 1rem; }
.research-findings {
    list-style: none; padding: 0; margin: 0;
    display: flex; flex-direction: column; gap: 0.5rem;
}
.research-findings li {
    font-size: 0.86rem; color: #374151; line-height: 1.6;
    padding-left: 1.3rem; position: relative;
}
.research-findings li::before { content: '◆'; position: absolute; left: 0; color: #d4b896; font-size: 0.55rem; top: 0.35em; }

@media (max-width: 640px) {
    .learn-tabs { flex-wrap: wrap; width: 100%; }
    .learn-tab { flex: 1; justify-content: center; }
    .learn-card, .research-card { padding: 1.2rem 1.1rem; }
}