/**
 * WinViewer - Modern Dark Admin & Remote Viewer Stylesheet
 * Optimized for crisp readability, high-framerate canvas, and minimal distraction.
 */

:root {
    --bg-primary: #0a0f1d;
    --bg-secondary: #111827;
    --bg-card: #162032;
    --bg-card-hover: #1e2c44;
    --border-color: #26354f;
    --border-light: #374b6c;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-blue: #38bdf8;
    --accent-blue-hover: #0ea5e9;
    --accent-blue-glow: rgba(56, 189, 248, 0.25);
    
    --status-active: #10b981;
    --status-active-glow: rgba(16, 185, 129, 0.2);
    --status-idle: #f59e0b;
    --status-idle-glow: rgba(245, 158, 11, 0.2);
    --status-offline: #ef4444;
    --status-offline-glow: rgba(239, 68, 68, 0.2);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* -------------------------------------------------------------------------
   Typography & Common Elements
------------------------------------------------------------------------- */
a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--accent-blue-hover);
}

.mono {
    font-family: var(--font-mono);
}

/* -------------------------------------------------------------------------
   Login Page Layout
------------------------------------------------------------------------- */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.brand-header {
    text-align: center;
    margin-bottom: 28px;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
    padding: 6px 14px;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
    border: 1px solid rgba(56, 189, 248, 0.2);
}

.brand-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

.brand-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 4px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--accent-blue-glow);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
    text-align: center;
}

.btn-primary {
    background: var(--accent-blue);
    color: #041226;
    width: 100%;
}

.btn-primary:hover {
    background: var(--accent-blue-hover);
    box-shadow: 0 4px 12px var(--accent-blue-glow);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.82rem;
}

.btn-secondary {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-light);
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    margin-bottom: 20px;
    display: none;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #86efac;
}

/* -------------------------------------------------------------------------
   Navbar & Layout Header
------------------------------------------------------------------------- */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.navbar-brand span {
    color: var(--accent-blue);
}

.navbar-meta {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--accent-blue);
}

/* -------------------------------------------------------------------------
   Dashboard Content & Stats Cards
------------------------------------------------------------------------- */
.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 28px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.stat-card.card-total::before { background: var(--accent-blue); }
.stat-card.card-active::before { background: var(--status-active); }
.stat-card.card-idle::before { background: var(--status-idle); }
.stat-card.card-offline::before { background: var(--status-offline); }

.stat-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 6px;
    line-height: 1;
}

.stat-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* -------------------------------------------------------------------------
   Devices Table Container
------------------------------------------------------------------------- */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.controls-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.table-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.devices-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.devices-table th {
    background: var(--bg-secondary);
    padding: 14px 18px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

.devices-table td {
    padding: 14px 18px;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.devices-table tr:last-child td {
    border-bottom: none;
}

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

/* -------------------------------------------------------------------------
   Status Badges
------------------------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.badge-active {
    background: var(--status-active-glow);
    color: var(--status-active);
    border: 1px solid rgba(16, 185, 129, 0.3);
}
.badge-active .badge-dot { background: var(--status-active); box-shadow: 0 0 8px var(--status-active); }

.badge-idle {
    background: var(--status-idle-glow);
    color: var(--status-idle);
    border: 1px solid rgba(245, 158, 11, 0.3);
}
.badge-idle .badge-dot { background: var(--status-idle); }

.badge-offline {
    background: var(--status-offline-glow);
    color: var(--status-offline);
    border: 1px solid rgba(239, 68, 68, 0.3);
}
.badge-offline .badge-dot { background: var(--status-offline); }

.empty-state {
    padding: 48px 24px;
    text-align: center;
    color: var(--text-muted);
}

/* -------------------------------------------------------------------------
   Viewer Layout
------------------------------------------------------------------------- */
.viewer-page {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.viewer-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 10;
}

.device-headline {
    display: flex;
    align-items: center;
    gap: 12px;
}

.device-headline h2 {
    font-size: 1.1rem;
    font-weight: 700;
}

.viewer-hud {
    display: flex;
    align-items: center;
    gap: 16px;
}

.hud-item {
    font-size: 0.82rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.hud-value {
    color: var(--text-primary);
    font-weight: 700;
    font-family: var(--font-mono);
}

.viewer-body {
    flex: 1;
    position: relative;
    background: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#screenCanvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
    display: block;
}

.viewer-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px 36px;
    text-align: center;
    display: none;
    z-index: 20;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(56, 189, 248, 0.2);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.footer-copy {
    text-align: center;
    padding: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
}