/* ============================================================
   BURGI COCKPIT — Layout (app shell, sidebar, topbar, login)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

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

html, body { height: 100%; }

body {
    font-family: var(--font-sans);
    background: var(--gradient-body);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* ── Matrix canvas (behind everything) ── */
#matrix-bg {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-bg);
    pointer-events: none;
    opacity: 0.55;
}
/* Arena edge glow — warm left, cool right, like the reference image */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: var(--z-bg);
    background: var(--gradient-arena);
    pointer-events: none;
}

a { color: var(--accent-cyan); text-decoration: none; }
a:hover { color: var(--accent-cyan-hover); }

/* ── App shell ── */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--gradient-sidebar);
    border-right: 1px solid var(--card-border);
    backdrop-filter: var(--glass-blur);
    display: flex;
    flex-direction: column;
    padding: var(--space-lg) var(--space-md);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-sm) var(--space-lg);
    color: var(--text-primary);
}
.sidebar-logo .logo-mark {
    font-size: 1.6rem;
    filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.7));
}
.sidebar-logo h1 {
    font-size: 1.15rem; font-weight: 800; letter-spacing: 1px;
    background: var(--gradient-title);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.sidebar-logo .subtitle {
    font-size: 0.7rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 2px;
    font-family: var(--font-mono);
}

.sidebar-nav { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.nav-section-label {
    font-size: 0.65rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 1.5px;
    margin: var(--space-md) var(--space-sm) var(--space-xs);
    font-family: var(--font-mono);
}
.nav-link {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 0.6rem var(--space-sm);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.92rem; font-weight: 500;
    transition: var(--transition-fast);
    border: 1px solid transparent;
}
.nav-link .material-symbols-outlined { font-size: 1.25rem; }
.nav-link:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-link.active {
    background: linear-gradient(90deg, rgba(0,212,255,0.14), rgba(0,212,255,0.02));
    color: var(--accent-cyan);
    border-color: rgba(0, 212, 255, 0.25);
    box-shadow: inset 2px 0 0 var(--accent-cyan);
}

.sidebar-user {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: var(--space-sm);
    border-top: 1px solid var(--card-border);
    margin-top: var(--space-md);
}
.sidebar-user .avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--bg-elevated); color: var(--accent-cyan);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; overflow: hidden;
    border: 1px solid rgba(0,212,255,0.3);
}
.sidebar-user .avatar img { width: 100%; height: 100%; object-fit: cover; }
.sidebar-user .user-name { font-size: 0.85rem; font-weight: 600; }
.sidebar-user .user-link { font-size: 0.72rem; color: var(--text-muted); }
.sidebar-user .user-link:hover { color: var(--accent-orange); }

/* ── Main ── */
.main-content { flex: 1; min-width: 0; display: flex; flex-direction: column; transition: opacity 0.16s ease; }
/* PJAX-lite content swap: fade out old, slide-fade in new (background canvas stays put) */
.main-content.swap-out { opacity: 0.35; }
.main-content.swap-in { animation: swapIn 0.26s ease; }
@keyframes swapIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.topbar {
    display: flex; align-items: center; gap: var(--space-md);
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--card-border);
}
.topbar-title {
    font-size: 1.3rem; font-weight: 700; flex: 1;
    background: var(--gradient-title);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.topbar-meta { font-size: 0.8rem; color: var(--text-muted); font-family: var(--font-mono); }

.hamburger { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 4px; }
.hamburger span { width: 22px; height: 2px; background: var(--text-secondary); border-radius: 2px; }

.page-content { padding: var(--space-xl); max-width: 1400px; width: 100%; }

/* ── Flash messages ── */
.flash-messages { padding: 0 var(--space-xl); }
.flash {
    padding: var(--space-sm) var(--space-md); border-radius: var(--radius-md);
    margin-bottom: var(--space-sm); font-size: 0.88rem;
    border-left: 3px solid var(--accent-cyan); background: var(--bg-elevated);
}
.flash.error { border-left-color: var(--accent-red); }
.flash.success { border-left-color: var(--color-positive); }

/* ── Login / not-allowed ── */
.login-wrap {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: var(--space-lg); position: relative;
}
.login-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl) var(--space-xl);
    text-align: center; max-width: 420px; width: 100%;
    box-shadow: var(--glow-soft), 0 0 60px rgba(0, 212, 255, 0.08);
}
.login-card .logo-mark { font-size: 3rem; filter: drop-shadow(0 0 16px rgba(0,212,255,0.6)); }
.login-card h1 {
    font-size: 1.8rem; font-weight: 800; margin: var(--space-sm) 0;
    background: var(--gradient-title);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.login-card .tagline { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: var(--space-xl); }
.btn-google {
    display: inline-flex; align-items: center; gap: var(--space-sm);
    background: #fff; color: #1a1a1a; font-weight: 600;
    padding: 0.7rem 1.4rem; border-radius: var(--radius-pill);
    transition: var(--transition-fast);
}
.btn-google:hover { transform: translateY(-1px); box-shadow: var(--glow-cyan); color: #1a1a1a; }
.btn-google svg { width: 20px; height: 20px; }
.login-dev { margin-top: var(--space-lg); }
.login-dev a { font-size: 0.8rem; color: var(--text-muted); font-family: var(--font-mono); }
.btn {
    display: inline-block; padding: 0.6rem 1.2rem; border-radius: var(--radius-md);
    font-weight: 600; cursor: pointer; border: 1px solid var(--card-border);
    background: var(--bg-elevated); color: var(--text-primary);
}
.btn-secondary { background: var(--bg-elevated); }

/* ── Responsive ── */
@media (max-width: 880px) {
    .sidebar {
        position: fixed; left: 0; top: 0; z-index: var(--z-modal);
        transform: translateX(-100%); transition: transform var(--transition-normal);
    }
    .sidebar.open { transform: translateX(0); }
    .hamburger { display: flex; }
    .page-content { padding: var(--space-md); }
    .topbar { padding: var(--space-md); }
}

@media (prefers-reduced-motion: reduce) {
    #matrix-bg { display: none; }
}