/* ═══════════════════════════════════════════════
   Let's Do. Lizenz-Server – Admin UI
   Dark Theme | Modern | Internal Tool
   ═══════════════════════════════════════════════ */

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

:root {
    --bg:           #09090b;
    --bg-card:      #0f0f12;
    --bg-elevated:  #16161a;
    --bg-hover:     #1c1c22;
    --bg-active:    #25252d;
    --border:       #27272a;
    --border-light: #3f3f46;
    --text:         #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted:   #71717a;
    --text-dim:     #52525b;
    --accent:       #e30613;
    --accent-hover: #cc0511;
    --accent-soft:  rgba(227, 6, 19, 0.12);
    --success:      #22c55e;
    --success-soft: rgba(34, 197, 94, 0.12);
    --danger:       #ef4444;
    --danger-soft:  rgba(239, 68, 68, 0.12);
    --warning:      #eab308;
    --warning-soft: rgba(234, 179, 8, 0.12);
    --orange:       #f97316;
    --orange-soft:  rgba(249, 115, 22, 0.12);
    --info:         #3b82f6;
    --info-soft:    rgba(59, 130, 246, 0.12);
    --radius:       8px;
    --radius-lg:    12px;
    --radius-xl:    16px;
    --shadow:       0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
    --shadow-lg:    0 4px 16px rgba(0,0,0,0.5);
    --font:         'Inter', system-ui, -apple-system, sans-serif;
    --transition:   all 0.15s ease;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ═══ Layout ═══ */
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

/* ═══ Header ═══ */
.app-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(15, 15, 18, 0.85);
}

.app-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.logo {
    font-weight: 800;
    font-size: 0.95rem;
    letter-spacing: -0.02em;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
}

.app-header nav { display: flex; align-items: center; gap: 0.25rem; }

.nav-link {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-link:hover { color: var(--text); background: var(--bg-hover); }
.nav-link.active { color: var(--text); background: var(--bg-active); }
.nav-link-logout { color: var(--text-dim); }
.nav-link-logout:hover { color: var(--danger); background: var(--danger-soft); }

/* ═══ Login ═══ */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: radial-gradient(ellipse at top, #1a1a2e 0%, var(--bg) 70%);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.login-card h1 {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.15rem;
}

.login-subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 2rem;
}

/* ═══ Typography ═══ */
h2 { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 0.25rem; }
h3 { font-size: 1rem; font-weight: 700; }
.subtitle { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 2rem; }
.text-muted { color: var(--text-muted); }

/* ═══ Cards ═══ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.card-header {
    padding: 0.875rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-elevated);
}

.card-body { padding: 1.5rem; }

/* ═══ Forms ═══ */
.form-group { margin-bottom: 1.25rem; }

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
}

.form-group small {
    display: block;
    margin-top: 0.3rem;
    font-size: 0.72rem;
    color: var(--text-dim);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="date"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 0.6rem 0.875rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.875rem;
    font-family: var(--font);
    transition: var(--transition);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

input::placeholder { color: var(--text-dim); }

.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }

/* ═══ Buttons ═══ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius);
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font);
    white-space: nowrap;
    line-height: 1;
}

.btn svg { width: 14px; height: 14px; flex-shrink: 0; }

.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(227,6,19,0.3); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-secondary { background: var(--bg-elevated); color: var(--text-secondary); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg-hover); color: var(--text); border-color: var(--border-light); }

.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.78rem; }

.btn-full { width: 100%; }

.btn-danger-outline { background: transparent; color: var(--danger); border-color: rgba(239,68,68,0.25); }
.btn-danger-outline:hover { background: var(--danger-soft); border-color: rgba(239,68,68,0.4); }

.btn-success-outline { background: transparent; color: var(--success); border-color: rgba(34,197,94,0.25); }
.btn-success-outline:hover { background: var(--success-soft); border-color: rgba(34,197,94,0.4); }

.btn-ghost {
    background: transparent;
    color: var(--text-dim);
    border: none;
    padding: 0.3rem;
    border-radius: 6px;
}
.btn-ghost:hover { color: var(--text); background: var(--bg-hover); }

/* ═══ Copy Button ═══ */
.copy-wrap {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.btn-copy {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    padding: 0;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-dim);
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-copy:hover { color: var(--text); border-color: var(--border-light); background: var(--bg-hover); }
.btn-copy.copied { color: var(--success); border-color: rgba(34,197,94,0.4); background: var(--success-soft); }
.btn-copy svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ═══ Alerts ═══ */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-success { background: var(--success-soft); color: var(--success); border: 1px solid rgba(34,197,94,0.2); }
.alert-danger  { background: var(--danger-soft); color: var(--danger); border: 1px solid rgba(239,68,68,0.2); }
.alert-warning { background: var(--warning-soft); color: var(--warning); border: 1px solid rgba(234,179,8,0.2); }

/* ═══ Tables ═══ */
.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
}

table { width: 100%; border-collapse: collapse; font-size: 0.84rem; }

thead { background: var(--bg-elevated); }

th {
    text-align: left;
    padding: 0.7rem 1rem;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(39,39,42,0.5);
    vertical-align: middle;
}

tbody tr { transition: background 0.1s; }
tbody tr:hover td { background: var(--bg-hover); }
tbody tr:last-child td { border-bottom: none; }

code {
    background: var(--bg);
    padding: 0.2rem 0.5rem;
    border-radius: 5px;
    font-size: 0.78rem;
    font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.info-table { margin: 0; }
.info-table td { padding: 0.5rem 0.75rem; border-bottom: 1px solid rgba(39,39,42,0.3); }
.info-table td:first-child { color: var(--text-muted); width: 180px; font-size: 0.8rem; font-weight: 500; }
.info-table tr:last-child td { border-bottom: none; }

/* ═══ Actions Row ═══ */
.actions-row { display: flex; gap: 0.75rem; margin-bottom: 2rem; flex-wrap: wrap; }

/* ═══ Modules ═══ */
.modules-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1.25rem; }

.module-category-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
    font-weight: 700;
    padding-left: 0.5rem;
}

.module-checkbox {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 0.75rem;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 0.25rem;
    border: 1px solid transparent;
}

.module-checkbox:hover { background: var(--bg-hover); border-color: var(--border); }
.module-checkbox input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }
.module-checkbox span strong { display: block; font-size: 0.84rem; font-weight: 600; }
.module-checkbox span small { display: block; font-size: 0.7rem; color: var(--text-dim); font-family: monospace; }

/* ═══ Badges ═══ */
.module-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 99px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.module-active { background: var(--success-soft); color: var(--success); border: 1px solid rgba(34,197,94,0.2); }
.module-locked { background: rgba(255,255,255,0.04); color: var(--text-dim); border: 1px solid rgba(255,255,255,0.06); }
.badge-expired { background: var(--warning-soft); color: var(--warning); border: 1px solid rgba(234,179,8,0.2); }

/* ═══ Dashboard Stats ═══ */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
}

.stat-active::before  { background: var(--success); }
.stat-warning::before { background: var(--warning); }
.stat-expired::before { background: var(--orange); }
.stat-revoked::before { background: var(--danger); }

.stat-number {
    display: block;
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.4rem;
    letter-spacing: -0.04em;
}

.stat-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}

.stat-active  .stat-number { color: var(--success); }
.stat-warning .stat-number { color: var(--warning); }
.stat-expired .stat-number { color: var(--orange); }
.stat-revoked .stat-number { color: var(--danger); }

/* ═══ Tooltip (Copy Feedback) ═══ */
.tooltip {
    position: fixed;
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    color: var(--success);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    pointer-events: none;
    z-index: 9999;
    box-shadow: var(--shadow-lg);
    animation: tooltipIn 0.15s ease;
}

@keyframes tooltipIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ═══ Responsive ═══ */
@media (max-width: 768px) {
    .container { padding: 0 1rem; }
    .dashboard-stats { grid-template-columns: 1fr 1fr; }
    .form-grid-2 { grid-template-columns: 1fr; }
    .modules-grid { grid-template-columns: 1fr; }
    .app-header .container { flex-direction: column; gap: 0.5rem; height: auto; padding: 0.75rem 1rem; }
    .app-header nav { width: 100%; justify-content: center; }
    .stat-number { font-size: 1.75rem; }
}

@media (max-width: 480px) {
    .dashboard-stats { grid-template-columns: 1fr; }
    .table-wrap { font-size: 0.8rem; }
    .btn { font-size: 0.78rem; padding: 0.45rem 0.85rem; }
}