/* ═══════════════════════════════════════════════════════
   Server Commander - Stylesheet
   Modern Dark Theme Dashboard
   ═══════════════════════════════════════════════════════ */

/* ── Reset & Variables ────────────────────────────────── */
:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d27;
    --bg-tertiary: #242735;
    --bg-card: #1e2130;
    --bg-hover: #2a2d3e;
    --bg-input: #161825;
    --border: #2e3148;
    --border-hover: #454970;
    --text-primary: #e4e6f0;
    --text-secondary: #8b8fa8;
    --text-muted: #5c6078;
    --accent: #6c5ce7;
    --accent-hover: #5a4bd1;
    --accent-glow: rgba(108, 92, 231, 0.3);
    --success: #00d68f;
    --danger: #ff6b6b;
    --warning: #ffc048;
    --info: #0ea5e9;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --transition: 0.2s ease;
    --sidebar-width: 240px;
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace;
}

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

html, body {
    height: 100%;
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
}

/* ── Scrollbar ────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* ── Utilities ────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Login Screen ─────────────────────────────────────── */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: var(--bg-primary);
    background-image: 
        radial-gradient(ellipse at 20% 50%, rgba(108, 92, 231, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(14, 165, 233, 0.06) 0%, transparent 50%);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 48px 40px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.login-icon {
    font-size: 56px;
    margin-bottom: 16px;
}

.login-card h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.login-card p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 14px;
}

.input-group {
    margin-bottom: 16px;
}

.input-group input,
.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font);
    transition: border-color var(--transition);
    outline: none;
}

.input-group input:focus,
.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.error-msg {
    color: var(--danger);
    font-size: 13px;
    margin-top: 12px;
}

/* ── Buttons ──────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: white;
}
.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-danger {
    background: var(--danger);
    color: white;
}
.btn-danger:hover {
    background: #e85555;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}
.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-full {
    width: 100%;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-xs {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-icon {
    padding: 6px;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    font-size: 16px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ── App Layout ───────────────────────────────────────── */
.app {
    display: flex;
    height: 100vh;
}

/* ── Sidebar ──────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 20px;
    border-bottom: 1px solid var(--border);
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--info));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    padding: 12px 8px;
    flex: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition);
    margin-bottom: 2px;
}

.nav-link:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-link.active {
    background: rgba(108, 92, 231, 0.15);
    color: var(--accent);
}

.nav-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.connection-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.online {
    background: var(--success);
    box-shadow: 0 0 8px rgba(0, 214, 143, 0.5);
}

.status-dot.offline {
    background: var(--text-muted);
}

/* ── Main Content ─────────────────────────────────────── */
.main-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.page {
    flex: 1;
    overflow-y: auto;
    padding: 24px 32px;
    display: flex;
    flex-direction: column;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-shrink: 0;
}

.page-header h2 {
    font-size: 22px;
    font-weight: 700;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.select-connection {
    padding: 6px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font);
    outline: none;
    cursor: pointer;
}

.select-connection:focus {
    border-color: var(--accent);
}

/* ── Command Grid (Dashboard) ─────────────────────────── */
.commands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
    flex-shrink: 0;
}

.command-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.command-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--card-color, var(--accent));
    opacity: 0;
    transition: opacity var(--transition);
}

.command-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.command-card:hover::before {
    opacity: 1;
}

.command-card.executing {
    opacity: 0.7;
    pointer-events: none;
}

.command-card.executing::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--card-color, var(--accent));
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.card-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.card-name {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.card-description {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.card-category {
    display: inline-block;
    margin-top: 10px;
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ── Output Panel ─────────────────────────────────────── */
.output-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    flex: 1;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.output-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.output-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.output-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.output-meta {
    font-size: 12px;
    color: var(--text-muted);
}

.output-content {
    flex: 1;
    padding: 16px 20px;
    overflow: auto;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
    margin: 0;
}

.output-content .error-text {
    color: var(--danger);
}

.output-content .success-text {
    color: var(--success);
}

/* ── Terminal Page ────────────────────────────────────── */
.terminal-wrapper {
    flex: 1;
    background: #000;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
    min-height: 0;
}

#terminal {
    height: 100%;
    padding: 8px;
}

/* ── Commands Table ───────────────────────────────────── */
.commands-table-wrapper {
    flex: 1;
    overflow: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th {
    text-align: left;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: sticky;
    top: 0;
    z-index: 1;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.data-table tr:hover td {
    background: var(--bg-hover);
}

.data-table .cmd-text {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--info);
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.table-actions {
    display: flex;
    gap: 6px;
}

/* ── Connections Grid ─────────────────────────────────── */
.connections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.connection-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    position: relative;
}

.connection-card.is-default {
    border-color: var(--accent);
}

.connection-card .badge-default {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 2px 10px;
    background: var(--accent);
    color: white;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.connection-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.connection-info {
    display: grid;
    gap: 6px;
    margin-bottom: 16px;
}

.connection-info-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.connection-info-row .label {
    color: var(--text-muted);
    min-width: 70px;
}

.connection-info-row .value {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 13px;
}

.connection-card-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ── Modal ────────────────────────────────────────────── */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all var(--transition);
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

/* ── Form Styles ──────────────────────────────────────── */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-input-color {
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-input-color input[type="color"] {
    width: 40px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    cursor: pointer;
    padding: 2px;
}

textarea.form-input {
    resize: vertical;
    min-height: 80px;
    font-family: var(--font-mono);
}

/* ── Toast Notifications ──────────────────────────────── */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 400px;
}

.toast.success {
    background: #0d3d2e;
    border: 1px solid var(--success);
    color: var(--success);
}

.toast.error {
    background: #3d1c1c;
    border: 1px solid var(--danger);
    color: var(--danger);
}

.toast.info {
    background: #1c2d3d;
    border: 1px solid var(--info);
    color: var(--info);
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
        min-width: 60px;
    }
    .logo-text, .nav-link span:not(.nav-icon), 
    .status-text, .sidebar-footer .btn span {
        display: none;
    }
    .nav-link {
        justify-content: center;
        padding: 10px;
    }
    .page {
        padding: 16px;
    }
    .commands-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
    .form-row {
        grid-template-columns: 1fr;
    }
}