:root {
    --bg-primary: #06060b;
    --bg-secondary: rgba(14, 14, 22, 0.85);
    --bg-card: rgba(255, 255, 255, 0.03);
    --primary-color: #00f0ff;
    --primary-glow: rgba(0, 240, 255, 0.35);
    --secondary-color: #ff003c;
    --secondary-glow: rgba(255, 0, 60, 0.35);
    --accent-gradient: linear-gradient(135deg, #00f0ff 0%, #7b2fff 50%, #ff003c 100%);
    --text-primary: #f0f0f5;
    --text-secondary: #8888a0;
    --success: #00ff66;
    --warning: #ffb800;
    --danger: #ff003c;
    --border-color: rgba(255, 255, 255, 0.08);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
}

*, *::before, *::after {
    margin: 0; padding: 0; box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed; inset: 0; z-index: -1;
    background:
        radial-gradient(ellipse 600px 400px at 10% 20%, rgba(0,240,255,0.07) 0%, transparent 70%),
        radial-gradient(ellipse 500px 500px at 90% 80%, rgba(255,0,60,0.06) 0%, transparent 70%),
        radial-gradient(ellipse 400px 300px at 50% 50%, rgba(123,47,255,0.04) 0%, transparent 70%);
    animation: bgShift 20s ease-in-out infinite alternate;
}

@keyframes bgShift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-30px, 20px) scale(1.05); }
}

/* ── Glassmorphism ── */
.glass-panel {
    background: rgba(12, 12, 20, 0.6);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0,0,0,0.25), inset 0 1px 0 rgba(255,255,255,0.04);
    transition: border-color 0.3s, box-shadow 0.3s;
}
.glass-panel:hover {
    border-color: rgba(255,255,255,0.12);
    box-shadow: 0 8px 40px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.06);
}

/* ── Layout ── */
.container { max-width: 1200px; margin: 0 auto; padding: 1.25rem; }

/* ── Typography ── */
h1, h2, h3 { font-weight: 700; letter-spacing: -0.02em; }
.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* ── Buttons ── */
.btn {
    padding: 0.65rem 1.25rem; border-radius: var(--radius-sm); border: none;
    font-weight: 600; cursor: pointer; transition: all 0.25s ease;
    display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
    font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em;
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, #00d4e0, #00f0ff);
    color: #000; box-shadow: 0 0 18px var(--primary-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 28px var(--primary-glow); }
.btn-secondary {
    background: transparent; color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover { background: rgba(255,255,255,0.05); border-color: var(--primary-color); }
.btn-danger {
    background: rgba(255,0,60,0.1); color: var(--danger);
    border: 1px solid rgba(255,0,60,0.3);
}
.btn-danger:hover { background: var(--danger); color: #fff; box-shadow: 0 0 18px var(--secondary-glow); }

/* ── Forms ── */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; margin-bottom: 0.4rem; color: var(--text-secondary); font-size: 0.85rem; }
.form-control {
    width: 100%; padding: 0.7rem 1rem;
    background: rgba(0,0,0,0.3); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); color: var(--text-primary);
    font-size: 0.95rem; transition: all 0.25s;
}
.form-control:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 12px rgba(0,240,255,0.15); }

/* ── Badges ── */
.badge {
    padding: 0.2rem 0.6rem; border-radius: 9999px;
    font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em;
    display: inline-block;
}
.badge-starting { background: rgba(255,184,0,0.1); color: var(--warning); border: 1px solid rgba(255,184,0,0.3); }
.badge-online   { background: rgba(0,240,255,0.1); color: var(--primary-color); border: 1px solid rgba(0,240,255,0.3); }
.badge-playing  { background: rgba(0,255,102,0.1); color: var(--success); border: 1px solid rgba(0,255,102,0.3); }
.badge-stopped  { background: rgba(255,255,255,0.05); color: var(--text-secondary); border: 1px solid var(--border-color); }
.badge-error    { background: rgba(255,0,60,0.1); color: var(--danger); border: 1px solid rgba(255,0,60,0.3); }

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.55} }
.animate-pulse { animation: pulse 2s infinite; }

/* ── Tables ── */
.table-container { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: collapse; white-space: nowrap; }
th, td { padding: 0.85rem 1rem; text-align: left; border-bottom: 1px solid var(--border-color); }
th { color: var(--text-secondary); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; }
tr:hover td { background: rgba(255,255,255,0.015); }

/* ── Navbar ── */
.navbar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.85rem 1.5rem;
    background: var(--bg-secondary); border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    position: sticky; top: 0; z-index: 200;
}
.nav-brand { font-size: 1.35rem; font-weight: 800; text-decoration: none; }
.nav-links { display: flex; gap: 1rem; align-items: center; }
.nav-user { color: var(--text-secondary); font-size: 0.85rem; }
.nav-user strong { color: #fff; }

/* Hamburger */
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 0.4rem; }
.hamburger span { display: block; width: 22px; height: 2px; background: #fff; margin: 5px 0; border-radius: 2px; transition: all 0.3s; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ── Login ── */
.login-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.login-box { width: 100%; max-width: 420px; padding: 2.5rem; text-align: center; }
.login-logo { font-size: 2.2rem; margin-bottom: 1.5rem; }

/* ── Dashboard ── */
.dashboard-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; flex-wrap: wrap; gap: 0.75rem; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card { padding: 1.25rem; display: flex; flex-direction: column; gap: 0.4rem; }
.stat-title { color: var(--text-secondary); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; }
.stat-value { font-size: 1.75rem; font-weight: 700; }
.main-grid { display: grid; grid-template-columns: 340px 1fr; gap: 1.5rem; }
.panel-header { margin-bottom: 1.25rem; padding-bottom: 0.85rem; border-bottom: 1px solid var(--border-color); font-size: 1rem; }

/* ── Session Cards (mobile) ── */
.session-cards { display: none; }
.session-card {
    background: rgba(255,255,255,0.02); border: 1px solid var(--border-color);
    border-radius: var(--radius-md); padding: 1rem; margin-bottom: 0.75rem;
    transition: border-color 0.2s;
}
.session-card:hover { border-color: rgba(255,255,255,0.12); }
.session-card-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.session-card-row:last-child { margin-bottom: 0; }
.session-card-label { color: var(--text-secondary); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; }
.session-card-value { font-size: 0.9rem; font-weight: 500; }
.session-card-actions { display: flex; gap: 0.5rem; margin-top: 0.75rem; }
.session-card-actions .btn { flex: 1; padding: 0.45rem 0.5rem; font-size: 0.72rem; }

/* ── Footer ── */
.site-footer { text-align: center; padding: 2rem 1rem 1.5rem; margin-top: 2rem; border-top: 1px solid var(--border-color); }
.footer-socials { display: flex; justify-content: center; gap: 1rem; margin-top: 0.5rem; }
.footer-socials a { color: var(--text-secondary); transition: color 0.2s, transform 0.2s; display: inline-flex; }
.footer-socials a:hover { color: #fff; transform: translateY(-2px); }

/* ── Action Buttons in table ── */
.action-btns { display: flex; gap: 0.4rem; align-items: center; white-space: nowrap; }
.action-btns .btn { padding: 0.3rem 0.7rem; font-size: 0.72rem; border-radius: 6px; }
.btn-pause { background: rgba(245,158,11,0.15); color: #f59e0b; border: 1px solid rgba(245,158,11,0.3); }
.btn-pause:hover { background: #f59e0b; color: #000; }
.btn-resume { background: rgba(16,185,129,0.15); color: #10b981; border: 1px solid rgba(16,185,129,0.3); }
.btn-resume:hover { background: #10b981; color: #000; }
.btn-delete { background: rgba(239,68,68,0.15); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }
.btn-delete:hover { background: #ef4444; color: #fff; }

/* ───────────── RESPONSIVE ───────────── */

/* Tablet */
@media (max-width: 900px) {
    .main-grid { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 640px) {
    html { font-size: 15px; }
    .container { padding: 1rem; }

    /* Navbar mobile */
    .navbar { padding: 0.75rem 1rem; position: relative; }
    .hamburger { display: block; }
    .nav-links {
        display: none; flex-direction: column; gap: 0.75rem;
        position: absolute; top: 100%; left: 0; right: 0;
        background: var(--bg-secondary); border-bottom: 1px solid var(--border-color);
        padding: 1rem; backdrop-filter: blur(14px);
        animation: slideDown 0.25s ease;
    }
    .nav-links.open { display: flex; }
    @keyframes slideDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

    .dashboard-header { text-align: center; }
    .dashboard-header div { text-align: center !important; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
    .stat-card { padding: 1rem; }
    .stat-value { font-size: 1.4rem; }
    .main-grid { grid-template-columns: 1fr; gap: 1rem; }

    /* Hide table, show cards on mobile */
    .table-desktop { display: none; }
    .session-cards { display: block; }

    .login-box { padding: 1.75rem; }
    .login-logo { font-size: 1.8rem; }
    .btn { padding: 0.55rem 0.9rem; font-size: 0.8rem; }
    th, td { padding: 0.6rem 0.5rem; font-size: 0.8rem; }
}

/* Small phones */
@media (max-width: 380px) {
    html { font-size: 14px; }
    .stats-grid { grid-template-columns: 1fr; }
    .navbar { padding: 0.65rem 0.75rem; }
    .nav-brand { font-size: 1.15rem; }
}