/* ============================================
   AXOLTECHS — Futuristic Theme
   ============================================ */
:root {
    --bg-0: #050912;
    --bg-1: #0a1122;
    --bg-2: #0f1a30;
    --bg-3: #162340;
    --accent: #00ffd0;
    --accent-2: #7c5cff;
    --accent-3: #ff3d7f;
    --text: #e8f0ff;
    --text-dim: #8fa3c8;
    --border: rgba(0, 255, 208, 0.15);
    --glow: 0 0 20px rgba(0, 255, 208, 0.35);
    --glow-purple: 0 0 25px rgba(124, 92, 255, 0.4);
    --radius: 14px;
    --font: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
    --mono: 'JetBrains Mono', 'Courier New', monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--bg-0);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    background-image:
        radial-gradient(ellipse at 20% 0%, rgba(124, 92, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(0, 255, 208, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(255, 61, 127, 0.05) 0%, transparent 70%);
    background-attachment: fixed;
}
a { color: var(--accent); text-decoration: none; transition: all 0.3s; }
a:hover { color: var(--accent-2); text-shadow: 0 0 10px var(--accent-2); }
img { max-width: 100%; display: block; }

/* Animated background grid */
body::before {
    content: '';
    position: fixed; inset: 0;
    background-image:
        linear-gradient(rgba(0, 255, 208, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 208, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none; z-index: 0;
    animation: gridMove 20s linear infinite;
}
@keyframes gridMove {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

/* ===== HEADER ===== */
header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(5, 9, 18, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}
.nav {
    max-width: 1400px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    padding: 1rem 1.5rem; gap: 1rem;
}
.logo {
    display: flex; align-items: center; gap: 0.7rem;
    font-size: 1.5rem; font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}
.logo-dot {
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 15px var(--accent);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50%      { transform: scale(1.3); opacity: 0.7; }
}
.nav-links { display: flex; gap: 1.8rem; align-items: center; }
.nav-links a {
    color: var(--text-dim); font-weight: 500; font-size: 0.95rem;
    position: relative; padding: 0.3rem 0;
}
.nav-links a::after {
    content: ''; position: absolute; bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transition: width 0.3s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }
.mobile-toggle {
    display: none;
    background: none; border: none;
    color: var(--accent); font-size: 1.6rem; cursor: pointer;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    border: none; border-radius: 10px;
    font-family: var(--font); font-size: 0.95rem; font-weight: 600;
    cursor: pointer; transition: all 0.3s; text-decoration: none;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #050912;
    box-shadow: 0 0 20px rgba(0, 255, 208, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 35px rgba(0, 255, 208, 0.5);
    color: #050912; text-shadow: none;
}
.btn-ghost {
    background: rgba(0, 255, 208, 0.05);
    color: var(--accent);
    border: 1px solid var(--border);
}
.btn-ghost:hover {
    background: rgba(0, 255, 208, 0.15);
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: var(--glow); text-shadow: none;
}
.btn-danger {
    background: rgba(255, 61, 127, 0.15);
    color: var(--accent-3);
    border: 1px solid rgba(255, 61, 127, 0.3);
}
.btn-danger:hover { background: rgba(255, 61, 127, 0.3); color: #fff; text-shadow: none; }
.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.82rem; }
.shepherd-link {
    border-radius: 999px;
    padding: 0.55rem 1.2rem;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* ===== HERO ===== */
.hero { position: relative; padding: 5rem 1.5rem 4rem; text-align: center; overflow: hidden; }
.hero-inner { max-width: 1000px; margin: 0 auto; position: relative; z-index: 2; }
.hero h1 {
    font-size: clamp(2.2rem, 6vw, 4.5rem);
    font-weight: 900; line-height: 1.1; letter-spacing: -2px;
    margin-bottom: 1.2rem;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent) 40%, var(--accent-2) 80%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeUp 0.8s ease-out;
}
.hero p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-dim); max-width: 720px; margin: 0 auto 2rem;
    animation: fadeUp 0.8s ease-out 0.15s backwards;
}
.hero-btns {
    display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
    animation: fadeUp 0.8s ease-out 0.3s backwards;
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem; max-width: 900px; margin: 3.5rem auto 0;
    animation: fadeUp 0.8s ease-out 0.45s backwards;
}
.stat {
    padding: 1.3rem;
    background: rgba(15, 26, 48, 0.5);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
}
.stat-num {
    font-size: 2rem; font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 0.85rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }

/* ===== SECTION ===== */
section { position: relative; z-index: 1; padding: 4rem 1.5rem; }
.container { max-width: 1400px; margin: 0 auto; }
.section-title { text-align: center; margin-bottom: 3rem; }
.section-title h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800; letter-spacing: -1px; margin-bottom: 0.6rem;
    background: linear-gradient(135deg, #fff, var(--accent));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.section-title p { color: var(--text-dim); font-size: 1.05rem; }
.tagline {
    display: inline-block;
    font-family: var(--mono); font-size: 0.8rem;
    color: var(--accent);
    background: rgba(0, 255, 208, 0.08);
    border: 1px solid var(--border);
    padding: 0.3rem 0.9rem; border-radius: 20px;
    margin-bottom: 1rem;
    letter-spacing: 2px; text-transform: uppercase;
}

/* ===== CATEGORY NAV ===== */
.cat-nav { display: flex; gap: 0.7rem; flex-wrap: wrap; justify-content: center; margin-bottom: 2.5rem; }
.cat-pill {
    padding: 0.6rem 1.3rem;
    background: rgba(15, 26, 48, 0.6);
    border: 1px solid var(--border);
    border-radius: 30px;
    color: var(--text-dim); font-size: 0.9rem; font-weight: 600;
    cursor: pointer; transition: all 0.3s; text-decoration: none;
}
.cat-pill:hover, .cat-pill.active {
    background: linear-gradient(135deg, rgba(0, 255, 208, 0.15), rgba(124, 92, 255, 0.15));
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: var(--glow); text-shadow: none;
    transform: translateY(-2px);
}

/* ===== RESEARCH GRID ===== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.8rem;
}
.card {
    background: linear-gradient(160deg, rgba(15, 26, 48, 0.9), rgba(10, 17, 34, 0.95));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex; flex-direction: column;
    position: relative;
    backdrop-filter: blur(10px);
}
.card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
    opacity: 0; transition: opacity 0.4s;
}
.card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 255, 208, 0.4);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), var(--glow);
}
.card:hover::before { opacity: 1; }
.card-img { width: 100%; height: 200px; object-fit: cover; background: var(--bg-2); transition: transform 0.6s; }
.card:hover .card-img { transform: scale(1.05); }
.card-img-wrap { overflow: hidden; position: relative; }
.card-body { padding: 1.4rem; flex: 1; display: flex; flex-direction: column; }
.card-cat {
    display: inline-block; font-size: 0.72rem;
    font-family: var(--mono); color: var(--accent-2);
    background: rgba(124, 92, 255, 0.1);
    border: 1px solid rgba(124, 92, 255, 0.25);
    padding: 0.2rem 0.6rem; border-radius: 5px;
    margin-bottom: 0.8rem;
    text-transform: uppercase; letter-spacing: 1px;
}
.card-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.6rem; color: var(--text); line-height: 1.3; }
.card-desc {
    color: var(--text-dim); font-size: 0.88rem;
    flex: 1; margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-actions {
    display: flex; gap: 0.6rem; align-items: center;
    padding-top: 1rem; border-top: 1px solid var(--border);
    flex-wrap: wrap;
}
.like-btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    background: rgba(0, 255, 208, 0.05);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-dim);
    cursor: pointer; font-size: 0.82rem; font-weight: 600;
    transition: all 0.3s; font-family: var(--font);
}
.like-btn:hover, .like-btn.active {
    color: var(--accent); border-color: var(--accent);
    background: rgba(0, 255, 208, 0.12);
    box-shadow: 0 0 12px rgba(0, 255, 208, 0.3);
}
.like-btn.dislike:hover, .like-btn.dislike.active {
    color: var(--accent-3); border-color: var(--accent-3);
    background: rgba(255, 61, 127, 0.12);
    box-shadow: 0 0 12px rgba(255, 61, 127, 0.3);
}

/* ===== MODAL ===== */
.modal-overlay {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(5, 9, 18, 0.85);
    backdrop-filter: blur(8px);
    display: none; align-items: center; justify-content: center;
    padding: 1rem;
    animation: fadeIn 0.3s;
}
.modal-overlay.active { display: flex; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
    background: linear-gradient(160deg, var(--bg-2), var(--bg-1));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%; max-width: 640px;
    max-height: 90vh; overflow-y: auto;
    padding: 2rem;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7), var(--glow);
    animation: slideUp 0.4s;
}
@keyframes slideUp {
    from { transform: translateY(40px); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
}
.modal h3 { margin-bottom: 1.2rem; font-size: 1.5rem; }
.modal-close {
    float: right; background: none; border: none;
    color: var(--text-dim); font-size: 1.6rem;
    cursor: pointer; line-height: 1; transition: all 0.3s;
}
.modal-close:hover { color: var(--accent-3); transform: rotate(90deg); }

/* ===== FORM ===== */
.form-group { margin-bottom: 1.1rem; }
.form-group label {
    display: block; margin-bottom: 0.4rem;
    font-size: 0.85rem; font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(5, 9, 18, 0.6);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-family: var(--font); font-size: 0.95rem;
    transition: all 0.3s;
}
.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 255, 208, 0.15), var(--glow);
    background: rgba(5, 9, 18, 0.9);
}
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { cursor: pointer; }
select.form-control option { background: var(--bg-1); color: var(--text); }

/* ===== COMMENTS ===== */
.comment {
    padding: 1rem;
    background: rgba(5, 9, 18, 0.5);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 0.8rem;
}
.comment-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.4rem; font-size: 0.85rem; }
.comment-name { font-weight: 700; color: var(--accent); }
.comment-date { color: var(--text-dim); font-size: 0.75rem; font-family: var(--mono); }
.comment-body { color: var(--text); font-size: 0.92rem; }

/* ===== ALERT ===== */
.alert {
    padding: 0.9rem 1.2rem; border-radius: 10px;
    margin-bottom: 1rem; font-size: 0.9rem; font-weight: 500;
    border: 1px solid; animation: slideDown 0.3s;
}
@keyframes slideDown { from { transform: translateY(-10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.alert-success { background: rgba(0, 255, 208, 0.1); border-color: rgba(0, 255, 208, 0.3); color: var(--accent); }
.alert-error   { background: rgba(255, 61, 127, 0.1); border-color: rgba(255, 61, 127, 0.3); color: var(--accent-3); }
.alert-info    { background: rgba(124, 92, 255, 0.1); border-color: rgba(124, 92, 255, 0.3); color: #a896ff; }

/* ===== TABLE ===== */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; background: rgba(15, 26, 48, 0.5); }
th, td { padding: 0.9rem 1rem; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
th {
    background: rgba(5, 9, 18, 0.7);
    color: var(--accent); font-weight: 700;
    text-transform: uppercase; font-size: 0.75rem; letter-spacing: 1px;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(0, 255, 208, 0.03); }

/* ===== TABS ===== */
.tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.tab {
    padding: 0.7rem 1.4rem;
    background: rgba(15, 26, 48, 0.6);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-dim); cursor: pointer;
    font-weight: 600; font-size: 0.9rem;
    transition: all 0.3s; font-family: var(--font);
}
.tab.active, .tab:hover {
    background: linear-gradient(135deg, rgba(0, 255, 208, 0.15), rgba(124, 92, 255, 0.15));
    border-color: var(--accent);
    color: var(--accent);
}
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.3s; }

/* ===== FOOTER ===== */
footer {
    position: relative; z-index: 1;
    margin-top: 4rem;
    padding: 3rem 1.5rem 1.5rem;
    border-top: 1px solid var(--border);
    background: linear-gradient(180deg, transparent, rgba(5, 9, 18, 0.9));
}
.footer-grid {
    max-width: 1400px; margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem; margin-bottom: 2rem;
}
.footer-col h4 {
    color: var(--accent); margin-bottom: 1rem;
    font-size: 0.95rem; text-transform: uppercase; letter-spacing: 1px;
}
.footer-col p, .footer-col a {
    color: var(--text-dim); font-size: 0.9rem;
    display: block; margin-bottom: 0.5rem;
}
.footer-bottom {
    max-width: 1400px; margin: 0 auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center; color: var(--text-dim); font-size: 0.85rem;
}

/* ===== BADGE ===== */
.badge {
    display: inline-block; padding: 0.15rem 0.6rem;
    border-radius: 6px; font-size: 0.7rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 1px;
}
.badge-admin { background: rgba(255, 61, 127, 0.2); color: var(--accent-3); border: 1px solid rgba(255, 61, 127, 0.4); }
.badge-user  { background: rgba(0, 255, 208, 0.15); color: var(--accent); border: 1px solid rgba(0, 255, 208, 0.3); }

/* ===== LOGIN FLOATING BUTTON ===== */
.login-float {
    position: fixed; bottom: 25px; right: 25px; z-index: 500;
    padding: 0.7rem 1.4rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #050912; font-weight: 800;
    border-radius: 30px;
    box-shadow: 0 0 30px rgba(0, 255, 208, 0.5);
    cursor: pointer; font-size: 0.9rem;
    border: none; font-family: var(--font);
    transition: all 0.3s;
    display: flex; align-items: center; gap: 0.5rem;
}
.login-float:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 0 45px rgba(0, 255, 208, 0.8);
}

/* ===== ADMIN STATS ===== */
.admin-header {
    background: linear-gradient(135deg, rgba(255,61,127,0.1), rgba(124,92,255,0.1));
    border-bottom: 1px solid var(--border);
}
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem; margin-bottom: 2rem;
}
.stat-card {
    background: linear-gradient(160deg, rgba(15,26,48,0.9), rgba(10,17,34,0.95));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem; text-align: center;
}
.stat-card .num {
    font-size: 2rem; font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-card .lbl {
    font-size: 0.75rem; color: var(--text-dim);
    text-transform: uppercase; letter-spacing: 1px; margin-top: 0.3rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav { padding: 0.8rem 1rem; }
    .nav-links { display: none; }
    .nav-links.mobile-open {
        display: flex; flex-direction: column;
        position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(5, 9, 18, 0.98);
        backdrop-filter: blur(20px);
        padding: 1.5rem;
        border-bottom: 1px solid var(--border);
        gap: 1rem;
    }
    .mobile-toggle { display: block; }
    .hero { padding: 3rem 1rem 2.5rem; }
    section { padding: 3rem 1rem; }
    .grid { grid-template-columns: 1fr; gap: 1.3rem; }
    .modal { padding: 1.4rem; }
    .login-float { bottom: 15px; right: 15px; padding: 0.6rem 1.1rem; font-size: 0.82rem; }
    .table-wrap { font-size: 0.85rem; }
    th, td { padding: 0.6rem 0.7rem; }
}