/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #0f1420;
    --bg-card: #141a2a;
    --bg-card-hover: #1a2236;
    --border-color: rgba(99, 140, 255, 0.1);
    --border-hover: rgba(99, 140, 255, 0.25);
    --accent: #638cff;
    --accent-glow: rgba(99, 140, 255, 0.3);
    --accent-subtle: rgba(99, 140, 255, 0.08);
    --text-primary: #e4e8f1;
    --text-secondary: #8892a8;
    --gradient-accent: linear-gradient(135deg, #638cff, #4ecdc4);
    --font-heading: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

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

body {
    font-family: var(--font-heading);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: #fff; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 4px; }

.text-accent { color: var(--accent) !important; }

/* ===== Section Common ===== */
.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 2px;
    color: var(--accent);
    background: var(--accent-subtle);
    border: 1px solid var(--border-color);
    padding: 6px 16px;
    border-radius: 50px;
}

.section-title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700; letter-spacing: -0.5px; }
.section-desc { color: var(--text-secondary); max-width: 500px; margin: 0.5rem auto 0; }
.section-padding { padding: 100px 0; }
.bg-darker { background: var(--bg-secondary); }

/* ===== Navbar ===== */
.navbar-blur {
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    transition: all 0.3s;
}
.navbar-blur.scrolled { padding: 8px 0; box-shadow: 0 4px 30px rgba(0,0,0,0.3); }
.navbar-brand { font-family: var(--font-mono); font-size: 1.3rem; }
.brand-bracket { color: var(--accent); }
.nav-link {
    font-size: 0.9rem; font-weight: 500; color: var(--text-secondary) !important;
    padding: 8px 16px !important; border-radius: var(--radius-sm); transition: all 0.25s;
}
.nav-link:hover, .nav-link.active { color: var(--text-primary) !important; background: var(--accent-subtle); }
.btn-outline-accent {
    color: var(--accent); border: 1px solid var(--accent); border-radius: 50px; transition: all 0.3s;
}
.btn-outline-accent:hover { background: var(--accent); color: #fff; box-shadow: 0 0 20px var(--accent-glow); }

/* ===== Hero ===== */
.hero-section { min-height: 100vh; position: relative; overflow: hidden; }
.hero-grid-bg {
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(99,140,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99,140,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 30%, transparent 70%);
}
.hero-glow {
    position: absolute; top: 20%; right: 10%; width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(99,140,255,0.08), transparent 60%); pointer-events: none;
}
.badge-pill {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.85rem; font-family: var(--font-mono); color: var(--accent);
    background: var(--accent-subtle); border: 1px solid var(--border-color);
    border-radius: 50px; padding: 6px 18px;
}
.pulse-dot {
    width: 8px; height: 8px; background: #4ecdc4; border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}
.hero-title { font-size: clamp(2.2rem,5vw,3.8rem); font-weight: 700; letter-spacing: -1px; line-height: 1.15; margin-bottom: 0.5rem; }
.hero-subtitle { font-family: var(--font-mono); font-size: clamp(1rem,2vw,1.4rem); color: var(--accent); margin-bottom: 1rem; }
.hero-desc { font-size: 1.05rem; color: var(--text-secondary); max-width: 520px; line-height: 1.7; }
.hero-content { animation: fadeInUp 0.8s ease-out; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.btn-accent { background: var(--gradient-accent); border: none; color: #fff; border-radius: 50px; font-weight: 600; transition: all 0.3s; }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); color: #fff; }
.btn-outline-light { border-radius: 50px; }

.social-links { display: flex; gap: 12px; }
.social-icon {
    width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-color); border-radius: 50%; color: var(--text-secondary);
    font-size: 1.1rem; transition: all 0.3s; text-decoration: none;
}
.social-icon:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-subtle); transform: translateY(-3px); }

/* ===== Terminal Card ===== */
.terminal-card {
    background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md);
    overflow: hidden; animation: fadeInUp 1s ease-out 0.3s both; box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.terminal-header {
    display: flex; align-items: center; gap: 8px; padding: 12px 16px;
    background: rgba(0,0,0,0.3); border-bottom: 1px solid var(--border-color);
}
.terminal-dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }
.terminal-title { margin-left: auto; font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-secondary); }
.terminal-body { padding: 20px; font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.8; }
.code-keyword { color: #c678dd; } .code-var { color: #e5c07b; } .code-prop { color: #e06c75; }
.code-string { color: #98c379; } .code-bool { color: #d19a66; } .code-comment { color: #5c6370; font-style: italic; }

/* ===== About ===== */
.about-image-placeholder {
    width: 100%; aspect-ratio: 4/5; background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); display: flex; flex-direction: column; align-items: center;
    justify-content: center; overflow: hidden;
}
.about-image-placeholder img { width: 100%; height: 100%; object-fit: cover; }
.info-item {
    display: flex; align-items: flex-start; gap: 12px; padding: 12px 16px;
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-md); transition: border-color 0.3s;
}
.info-item:hover { border-color: var(--border-hover); }
.info-item i { font-size: 1.2rem; margin-top: 2px; }

/* ===== Skills ===== */
.skill-tag {
    display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px;
    background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 50px;
    font-size: 0.9rem; font-weight: 500; color: var(--text-primary); transition: all 0.3s;
}
.skill-tag:hover { border-color: var(--accent); background: var(--accent-subtle); transform: translateY(-2px); }
.skill-tag i { color: var(--accent); }

/* ===== Projects Grid ===== */
.btn-filter {
    background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary);
    padding: 6px 20px; border-radius: 50px; font-size: 0.85rem; margin: 0 4px 8px; transition: all 0.3s;
}
.btn-filter:hover, .btn-filter.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.project-card {
    background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md);
    overflow: hidden; transition: all 0.4s; height: 100%; display: flex; flex-direction: column;
}
.project-card:hover { border-color: var(--border-hover); transform: translateY(-6px); box-shadow: 0 20px 50px rgba(0,0,0,0.3); }
.project-image {
    height: 200px; background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
    display: flex; align-items: center; justify-content: center;
    border-bottom: 1px solid var(--border-color); position: relative; overflow: hidden;
}
.project-image img { width: 100%; height: 100%; object-fit: cover; }
.project-image-placeholder { font-size: 3rem; opacity: 0.15; }
.project-overlay {
    position: absolute; inset: 0; background: rgba(10,14,23,0.8);
    display: flex; align-items: center; justify-content: center; gap: 12px;
    opacity: 0; transition: opacity 0.3s;
}
.project-card:hover .project-overlay { opacity: 1; }
.project-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.project-category {
    font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent);
    text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px;
}
.project-title { font-size: 1.2rem; font-weight: 600; margin-bottom: 10px; color: var(--text-primary); }
.project-desc { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; flex: 1; }
.project-tech {
    display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; padding-top: 16px;
    border-top: 1px solid var(--border-color);
}
.tech-badge {
    font-family: var(--font-mono); font-size: 0.72rem; padding: 4px 10px;
    background: var(--accent-subtle); border: 1px solid var(--border-color); border-radius: 4px; color: var(--text-secondary);
}
.comment-badge {
    font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent);
    display: flex; align-items: center; gap: 4px;
}

/* ===== Load More Button ===== */
.btn-load-more {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--bg-card); border: 1px solid var(--border-color);
    color: var(--text-primary); padding: 14px 36px; border-radius: 50px;
    font-size: 0.95rem; font-weight: 600; transition: all 0.3s; cursor: pointer;
    text-decoration: none;
}
.btn-load-more:hover {
    border-color: var(--accent); background: var(--accent-subtle); color: var(--text-primary);
    transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}
.btn-load-more .load-more-count {
    font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent);
    background: var(--accent-subtle); padding: 3px 10px; border-radius: 50px;
}

/* ===== Category Groups (main page) ===== */
.category-group { margin-bottom: 60px; }
.category-group:last-child { margin-bottom: 0; }
.category-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border-color);
}
.category-title {
    font-size: 1.3rem; font-weight: 600; margin: 0;
    display: flex; align-items: center; gap: 8px;
}
.category-title i { color: var(--accent); font-size: 1.1rem; }
.category-count {
    font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent);
    background: var(--accent-subtle); padding: 3px 10px; border-radius: 50px;
    border: 1px solid var(--border-color);
}
.see-more-link {
    font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent);
    text-decoration: none; display: flex; align-items: center; transition: all 0.2s;
}
.see-more-link:hover { color: #fff; gap: 4px; }

/* ===== Category Page ===== */
.category-page-wrapper { padding-top: 100px; padding-bottom: 60px; min-height: 70vh; }

/* ===== Project Detail Page ===== */
.project-page-wrapper { padding-top: 80px; padding-bottom: 60px; }

.project-hero-image {
    width: 100%; max-height: 450px; border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid var(--border-color); margin-bottom: 32px;
}
.project-hero-image img { width: 100%; height: 100%; object-fit: cover; }
.project-hero-placeholder {
    width: 100%; height: 300px; border-radius: var(--radius-lg); background: var(--bg-card);
    border: 1px solid var(--border-color); display: flex; align-items: center; justify-content: center;
    font-size: 5rem; color: var(--text-secondary); opacity: 0.1; margin-bottom: 32px;
}

.project-detail-header { margin-bottom: 40px; }
.project-detail-title { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; letter-spacing: -0.5px; }
.project-detail-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.detail-badge {
    display: inline-flex; align-items: center; gap: 4px; font-family: var(--font-mono); font-size: 0.78rem;
    padding: 6px 14px; background: var(--accent-subtle); border: 1px solid var(--border-color);
    border-radius: 50px; color: var(--text-secondary);
}

.project-section { margin-bottom: 40px; }
.project-section h4 { font-size: 1.15rem; font-weight: 600; margin-bottom: 16px; }
.project-long-desc p { color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; font-size: 1rem; }

.tech-stack-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.tech-stack-item {
    font-family: var(--font-mono); font-size: 0.85rem; padding: 10px 20px;
    background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 50px;
    color: var(--text-primary); transition: all 0.3s;
}
.tech-stack-item:hover { border-color: var(--accent); background: var(--accent-subtle); }

.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.feature-item {
    display: flex; align-items: flex-start; gap: 10px; padding: 14px 18px;
    background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md);
    font-size: 0.9rem; color: var(--text-secondary); transition: border-color 0.3s;
}
.feature-item:hover { border-color: var(--border-hover); }
.feature-item i { margin-top: 3px; flex-shrink: 0; }

/* Gallery */
.gallery-item {
    border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border-color);
    cursor: pointer; transition: all 0.3s; aspect-ratio: 16/10;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.gallery-item:hover { border-color: var(--border-hover); }
.gallery-item:hover img { transform: scale(1.05); }

/* Lightbox */
.lightbox-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.9); z-index: 9999;
    display: flex; align-items: center; justify-content: center; padding: 40px;
    animation: fadeIn 0.2s;
}
.lightbox-overlay img { max-width: 100%; max-height: 90vh; border-radius: var(--radius-md); }
.lightbox-close {
    position: absolute; top: 20px; right: 20px; background: none; border: none;
    color: #fff; font-size: 1.5rem; cursor: pointer; opacity: 0.7; transition: opacity 0.2s;
}
.lightbox-close:hover { opacity: 1; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ===== Comments ===== */
#pending-message {
    background: rgba(99,140,255,0.1);
    border: 1px solid rgba(99,140,255,0.2);
    color: var(--text-primary);
    border-radius: 12px;
    padding: 16px 20px;
}

.comment-form-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); padding: 24px;
}

.comment-item {
    display: flex; gap: 14px; padding: 20px; background: var(--bg-card);
    border: 1px solid var(--border-color); border-radius: var(--radius-md);
    margin-bottom: 12px; transition: border-color 0.3s;
}
.comment-item:hover { border-color: var(--border-hover); }

.comment-avatar {
    width: 44px; height: 44px; border-radius: 50%; background: var(--gradient-accent);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.85rem; color: #fff; flex-shrink: 0;
}

.comment-body { flex: 1; min-width: 0; }
.comment-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.comment-meta strong { font-size: 0.9rem; }
.comment-date { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-secondary); }
.comment-text { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; margin: 0; word-wrap: break-word; }

/* ===== Contact ===== */
.contact-info-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-md); transition: all 0.3s;
}
.contact-info-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.contact-icon {
    width: 60px; height: 60px; display: inline-flex; align-items: center; justify-content: center;
    background: var(--accent-subtle); border-radius: 50%; font-size: 1.5rem; color: var(--accent);
}
.glass-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); }
.form-dark {
    background: var(--bg-primary) !important; border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important; border-radius: var(--radius-sm); padding: 12px 16px; transition: border-color 0.3s;
}
.form-dark:focus { border-color: var(--accent) !important; box-shadow: 0 0 0 3px var(--accent-glow) !important; }
.form-dark::placeholder { color: var(--text-secondary); opacity: 0.5; }

/* ===== Footer ===== */
.footer-section { background: var(--bg-secondary); border-top: 1px solid var(--border-color); padding: 24px 0; }

/* ===== Animations ===== */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s, transform 0.6s; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 991px) { .section-padding { padding: 70px 0; } .hero-title { margin-top: 1rem; } }
@media (max-width: 575px) { .section-padding { padding: 50px 0; } .hero-desc { font-size: 0.95rem; } .features-grid { grid-template-columns: 1fr; } }