/* ============================================
   OptimAI Portal – Glass Morphism Dark Theme
   ============================================ */

:root {
    --bg-primary:   #08080f;
    --bg-secondary: #0d0d1a;
    --glass-bg:         rgba(255,255,255,0.04);
    --glass-bg-hover:   rgba(255,255,255,0.08);
    --glass-border:     rgba(255,255,255,0.08);
    --glass-border-h:   rgba(255,255,255,0.18);
    --accent:       #00d4ff;
    --accent2:      #7c3aed;
    --accent-glow:  rgba(0,212,255,0.18);
    --txt:          #f0f0f0;
    --txt2:         rgba(240,240,240,0.6);
    --txt3:         rgba(240,240,240,0.35);
    --success:  #10b981;
    --warn:     #f59e0b;
    --danger:   #ef4444;
    --info:     #3b82f6;
    --radius:   16px;
    --radius-s:  8px;
    --transition: 0.25s cubic-bezier(.4,0,.2,1);
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--txt);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Animated background */
body::before {
    content: '';
    position: fixed; inset: 0; z-index: -1;
    background:
        radial-gradient(ellipse 80% 60% at 20% 20%, rgba(0,212,255,0.07) 0%, transparent 60%),
        radial-gradient(ellipse 60% 80% at 80% 80%, rgba(124,58,237,0.07) 0%, transparent 60%),
        var(--bg-primary);
}

/* Links */
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: #fff; }

/* ---- Glass card ---- */
.glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.glass-hover { transition: var(--transition); }
.glass-hover:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-h);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4), 0 0 0 1px rgba(0,212,255,0.08);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: var(--radius-s);
    font-size: 0.9rem; font-weight: 600; cursor: pointer;
    border: none; transition: var(--transition); text-decoration: none;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), #0096b3);
    color: #000; box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(0,212,255,0.3); color: #000; }
.btn-secondary {
    background: var(--glass-bg); border: 1px solid var(--glass-border); color: var(--txt);
}
.btn-secondary:hover { background: var(--glass-bg-hover); border-color: var(--glass-border-h); color: var(--txt); }
.btn-danger  { background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.btn-danger:hover { background: rgba(239,68,68,0.25); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

/* ---- Form elements ---- */
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: 0.85rem; color: var(--txt2); margin-bottom: 6px; font-weight: 500; }
.form-control {
    width: 100%; padding: 10px 14px;
    background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border);
    border-radius: var(--radius-s); color: var(--txt); font-size: 0.95rem;
    transition: var(--transition); outline: none;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); background: rgba(255,255,255,0.07); }
.form-control::placeholder { color: var(--txt3); }
select.form-control option { background: #1a1a2e; color: var(--txt); }

/* ---- Alerts ---- */
.alert { padding: 12px 16px; border-radius: var(--radius-s); font-size: 0.9rem; margin-bottom: 1rem; }
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: #6ee7b7; }
.alert-error   { background: rgba(239,68,68,0.1);  border: 1px solid rgba(239,68,68,0.3);  color: #fca5a5; }
.alert-info    { background: rgba(59,130,246,0.1);  border: 1px solid rgba(59,130,246,0.3);  color: #93c5fd; }
.alert-warn    { background: rgba(245,158,11,0.1);  border: 1px solid rgba(245,158,11,0.3);  color: #fcd34d; }

/* ---- Badges ---- */
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 20px;
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
}
.badge-accent  { background: rgba(0,212,255,0.15); color: var(--accent); }
.badge-success { background: rgba(16,185,129,0.15); color: #10b981; }
.badge-warn    { background: rgba(245,158,11,0.15); color: #f59e0b; }
.badge-purple  { background: rgba(124,58,237,0.15); color: #a78bfa; }
.badge-new     { background: rgba(16,185,129,0.2); color: #34d399; }

/* ---- Nav bar ---- */
.navbar {
    position: sticky; top: 0; z-index: 100;
    background: rgba(8,8,15,0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0 24px; height: 60px;
    display: flex; align-items: center; justify-content: space-between;
}
.navbar-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; color: var(--txt); }
.navbar-brand img { height: 32px; }
.navbar-brand span { color: var(--accent); }
.navbar-right { display: flex; align-items: center; gap: 16px; }
.navbar-user { font-size: 0.85rem; color: var(--txt2); }

/* ---- Page wrapper ---- */
.page-wrapper { max-width: 1200px; margin: 0 auto; padding: 32px 24px; }
.page-header { margin-bottom: 32px; }
.page-header h1 { font-size: 1.8rem; font-weight: 700; margin-bottom: 6px; }
.page-header p  { color: var(--txt2); font-size: 0.95rem; }

/* ---- Login page ---- */
.login-page {
    min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px;
}
.login-card {
    width: 100%; max-width: 420px; padding: 40px;
    background: rgba(13,13,26,0.9); border: 1px solid var(--glass-border);
    border-radius: 24px; backdrop-filter: blur(20px);
    box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}
.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo img { height: 48px; margin-bottom: 12px; display: block; margin-left: auto; margin-right: auto; }
.login-logo h1 { font-size: 1.6rem; font-weight: 800; }
.login-logo h1 span { color: var(--accent); }
.login-logo p { color: var(--txt2); font-size: 0.9rem; margin-top: 4px; }

/* ---- Project cards grid ---- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.project-card {
    padding: 24px; cursor: pointer;
    display: flex; flex-direction: column; gap: 12px;
    text-decoration: none; color: var(--txt);
}
.project-card-icon { font-size: 2rem; }
.project-card h3 { font-size: 1.1rem; font-weight: 700; }
.project-card p { font-size: 0.85rem; color: var(--txt2); flex: 1; }
.project-card-footer { font-size: 0.78rem; color: var(--txt3); display: flex; align-items: center; gap: 6px; }

/* ---- Menu items grid ---- */
.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}
.menu-card {
    padding: 20px 22px; text-decoration: none; color: var(--txt);
    display: flex; flex-direction: column; gap: 10px;
}
.menu-card-icon { font-size: 1.8rem; }
.menu-card h4 { font-size: 1rem; font-weight: 600; }
.menu-card p { font-size: 0.82rem; color: var(--txt2); flex: 1; }
.menu-card .badge { align-self: flex-start; }

/* ---- Admin table ---- */
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th {
    text-align: left; padding: 12px 16px; font-size: 0.78rem; text-transform: uppercase;
    letter-spacing: 0.05em; color: var(--txt3); border-bottom: 1px solid var(--glass-border);
}
.admin-table td { padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,0.04); vertical-align: middle; }
.admin-table tr:hover td { background: rgba(255,255,255,0.02); }
.admin-table .actions { display: flex; gap: 8px; }

/* ---- Admin nav ---- */
.admin-nav { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.admin-nav a {
    padding: 8px 16px; border-radius: var(--radius-s); font-size: 0.85rem; font-weight: 500;
    color: var(--txt2); background: var(--glass-bg); border: 1px solid var(--glass-border);
    transition: var(--transition);
}
.admin-nav a:hover, .admin-nav a.active {
    color: var(--accent); background: var(--glass-bg-hover); border-color: rgba(0,212,255,0.3);
}

/* ---- Tabs ---- */
.section-title {
    font-size: 1.1rem; font-weight: 700; margin-bottom: 16px;
    padding-bottom: 10px; border-bottom: 1px solid var(--glass-border);
    display: flex; align-items: center; gap: 10px;
}

/* ---- Stat cards ---- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card { padding: 20px 22px; text-align: center; }
.stat-card .val { font-size: 2rem; font-weight: 800; color: var(--accent); line-height: 1; }
.stat-card .lbl { font-size: 0.78rem; color: var(--txt2); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.06em; }

/* ---- Responsive ---- */
@media (max-width: 640px) {
    .page-wrapper { padding: 20px 16px; }
    .navbar { padding: 0 16px; }
    .login-card { padding: 28px 24px; }
    .admin-nav { gap: 6px; }
    .admin-nav a { padding: 7px 12px; font-size: 0.8rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .projects-grid, .menu-grid { grid-template-columns: 1fr; }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ---- Misc ---- */
.text-accent { color: var(--accent); }
.text-muted  { color: var(--txt2); }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.flex { display: flex; } .items-center { align-items: center; } .gap-2 { gap: 8px; } .gap-3 { gap: 12px; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }