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

/* ═══════════════════════════════════════════════════════════════
   FastFi Design System — Dark Mode Glassmorphism
   ═══════════════════════════════════════════════════════════════ */

:root {
    /* Core Colors */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-hover: rgba(255, 255, 255, 0.06);

    /* Accent Colors */
    --accent-primary: #6366f1;
    --accent-primary-glow: rgba(99, 102, 241, 0.3);
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);

    /* Status Colors */
    --status-online: #22c55e;
    --status-online-glow: rgba(34, 197, 94, 0.25);
    --status-offline: #ef4444;
    --status-offline-glow: rgba(239, 68, 68, 0.25);
    --status-pending: #f59e0b;
    --status-pending-glow: rgba(245, 158, 11, 0.25);
    --status-blocked: #ef4444;

    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-accent: #a5b4fc;

    /* Borders */
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);

    /* Layout */
    --sidebar-width: 260px;
    --header-height: 64px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Transitions */
    --transition-fast: 150ms;
    --transition-normal: 200ms;
    --transition-slow: 300ms;
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ─── Background Gradient Orbs ────────────────────────── */
body::before {
    content: '';
    position: fixed;
    top: -30%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    bottom: -30%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

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

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

/* ═══════════════════════════════════════════════════════════════
   LOGIN PAGE
   ═══════════════════════════════════════════════════════════════ */

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.login-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    animation: fadeInUp 0.6s ease-out;
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo h1 {
    font-size: 2rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.login-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

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

.form-group input::placeholder {
    color: var(--text-muted);
}

.login-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    display: none;
}

.login-error.show {
    display: block;
}

/* ─── Buttons ─────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.8rem 1.6rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 2px 10px var(--accent-primary-glow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-primary-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-success {
    background: var(--status-online);
    color: white;
}

.btn-success:hover {
    background: #16a34a;
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--status-offline);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
}

.btn-warning {
    background: var(--status-pending);
    color: #1a1a1a;
}

.btn-warning:hover {
    background: #d97706;
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn-sm {
    padding: 0.5rem 1.1rem;
    font-size: 0.85rem;
}

/* Soft Button Variants */
.btn-primary-soft {
    background: var(--accent-primary-glow);
    color: var(--accent-primary);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.btn-primary-soft:hover {
    background: rgba(139, 92, 246, 0.2);
    transform: translateY(-1px);
}

.btn-success-soft {
    background: rgba(16, 185, 129, 0.12);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.btn-success-soft:hover {
    background: rgba(16, 185, 129, 0.2);
    transform: translateY(-1px);
}

.btn-danger-soft {
    background: rgba(239, 68, 68, 0.12);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger-soft:hover {
    background: rgba(239, 68, 68, 0.2);
    transform: translateY(-1px);
}

.btn-warning-soft {
    background: rgba(245, 158, 11, 0.12);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.btn-warning-soft:hover {
    background: rgba(245, 158, 11, 0.2);
    transform: translateY(-1px);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-icon {
    width: 28px;
    height: 28px;
    padding: 0 !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-danger-soft {
    background: rgba(239, 68, 68, 0.08);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.15);
}

.btn-danger-soft:hover {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.3);
}

.btn-success-soft {
    background: rgba(34, 197, 94, 0.08);
    color: #86efac;
    border: 1px solid rgba(34, 197, 94, 0.15);
}

.btn-success-soft:hover {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border-color: rgba(34, 197, 94, 0.3);
}

/* ═══════════════════════════════════════════════════════════════
   DASHBOARD LAYOUT
   ═══════════════════════════════════════════════════════════════ */

.app-layout {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* ─── Sidebar ─────────────────────────────────────────── */

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition-normal);
}

.sidebar-brand {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand h2 {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-brand span {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: block;
    margin-top: 2px;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    overflow-y: auto;
}

.sidebar-nav-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.75rem 1rem 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    margin-bottom: 2px;
}

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

.nav-item.active {
    background: var(--accent-primary-glow);
    color: var(--accent-primary);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 15%;
    bottom: 15%;
    width: 3px;
    background: var(--accent-primary);
    border-radius: 0 3px 3px 0;
}

.nav-item .icon {
    width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ─── Lucide Icon Sizing ─────────────────────────────── */

.lucide {
    vertical-align: middle;
    flex-shrink: 0;
}

.sidebar-brand .lucide {
    width: 24px;
    height: 24px;
    vertical-align: -4px;
    margin-right: 2px;
}

.login-logo .lucide {
    width: 32px;
    height: 32px;
    vertical-align: -6px;
}

.nav-item .lucide {
    width: 18px;
    height: 18px;
}

.stat-icon .lucide {
    width: 22px;
    height: 22px;
}

.panel-header .lucide {
    width: 16px;
    height: 16px;
    vertical-align: -2px;
    margin-right: 4px;
}

.cmd-icon .lucide {
    width: 24px;
    height: 24px;
}

.btn .lucide {
    width: 15px;
    height: 15px;
}

.toast-icon .lucide {
    width: 18px;
    height: 18px;
}

.back-btn .lucide {
    width: 18px;
    height: 18px;
}

.search-icon .lucide {
    width: 16px;
    height: 16px;
}

.nav-badge {
    margin-left: auto;
    background: var(--status-pending);
    color: #1a1a1a;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 1rem 0.75rem;
    border-top: 1px solid var(--border-color);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
}

.sidebar-user .user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: white;
}

.sidebar-user .user-info {
    flex: 1;
}

.sidebar-user .user-name {
    font-weight: 600;
    font-size: 0.85rem;
}

.sidebar-user .user-role {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* ─── Main Content ────────────────────────────────────── */

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    min-height: 100vh;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.page-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

/* ═══════════════════════════════════════════════════════════════
   STATS CARDS
   ═══════════════════════════════════════════════════════════════ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stats-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

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

.stat-card .stat-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.stat-card .stat-icon.purple {
    background: rgba(99, 102, 241, 0.15);
    color: #818cf8;
}

.stat-card .stat-icon.green {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
}

.stat-card .stat-icon.amber {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
}

.stat-card .stat-icon.red {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
}

.stat-card .stat-icon.blue {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
}

.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.1;
}

.stat-card .stat-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-card .stat-info {
    flex: 1;
    min-width: 0;
}

/* ═══════════════════════════════════════════════════════════════
   DATA PANELS & CARDS
   ═══════════════════════════════════════════════════════════════ */

.panel {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.panel.panel-flush {
    margin-bottom: 0;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.panel-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.panel-body {
    padding: 1.25rem;
}

.panel-body.no-padding {
    padding: 0;
}

.scrollable {
    max-height: 400px;
    overflow-y: auto;
}

/* ─── Content Grid ────────────────────────────────────── */

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.content-grid.three-col {
    grid-template-columns: repeat(3, 1fr);
}

.detail-grid-main {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.detail-grid-bottom {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
}

/* ─── Date Input ──────────────────────────────────────── */

.date-input {
    padding: 0.4rem 0.6rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-fast);
}

.date-input:focus {
    border-color: var(--accent-primary);
}

/* ═══════════════════════════════════════════════════════════════
   DEVICE CARDS & LIST
   ═══════════════════════════════════════════════════════════════ */

.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
}

.device-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
}

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

.device-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.device-card-title {
    font-weight: 600;
    font-size: 1rem;
}

.device-card-id {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: 'Courier New', monospace;
}

.device-card-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 1rem;
}

.device-stat {
    font-size: 0.82rem;
}

.device-stat .label {
    color: var(--text-muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.device-stat .value {
    font-weight: 600;
    font-size: 1rem;
    margin-top: 2px;
}

/* ─── Status Badges ───────────────────────────────────── */

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.online {
    background: var(--status-online-glow);
    color: var(--status-online);
}

.status-badge.offline {
    background: var(--status-offline-glow);
    color: var(--status-offline);
}

.status-badge.pending {
    background: var(--status-pending-glow);
    color: var(--status-pending);
}

.status-badge.blocked {
    background: var(--status-offline-glow);
    color: var(--status-offline);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
}

.status-dot.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 currentColor;
    }

    50% {
        box-shadow: 0 0 0 4px transparent;
    }

    100% {
        box-shadow: 0 0 0 0 transparent;
    }
}

/* ═══════════════════════════════════════════════════════════════
   TABLE STYLES
   ═══════════════════════════════════════════════════════════════ */

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    padding: 0.85rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-glass);
}

.data-table td {
    padding: 0.85rem 1.25rem;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

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

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

/* ═══════════════════════════════════════════════════════════════
   CHARTS (Simple Canvas area)
   ═══════════════════════════════════════════════════════════════ */

.chart-container {
    position: relative;
    height: 220px;
    padding: 0.5rem;
}

.chart-bar-container {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 100%;
    gap: 0.5rem;
    padding-top: 1rem;
}

.chart-bar-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
}

.chart-bar {
    width: 100%;
    max-width: 40px;
    background: var(--accent-gradient);
    border-radius: 6px 6px 0 0;
    min-height: 4px;
    position: relative;
    transition: opacity var(--transition-fast);
}

.chart-bar:hover {
    opacity: 0.85;
}

.chart-bar-value {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.chart-bar-label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════
   MODAL
   ═══════════════════════════════════════════════════════════════ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: color var(--transition-fast);
}

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

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* ═══════════════════════════════════════════════════════════════
   SEARCH & FILTERS
   ═══════════════════════════════════════════════════════════════ */

.search-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0 1rem;
    transition: border-color var(--transition-fast);
}

.search-bar:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

.search-bar .search-icon {
    color: var(--text-muted);
    font-size: 1rem;
}

.search-bar input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 0.7rem 0;
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
}

.search-bar input::placeholder {
    color: var(--text-muted);
}

.filter-tabs {
    display: flex;
    gap: 0.25rem;
    background: var(--bg-glass);
    border-radius: var(--radius-sm);
    padding: 0.25rem;
    border: 1px solid var(--border-color);
}

.filter-tab {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    background: none;
    font-family: inherit;
}

.filter-tab:hover {
    color: var(--text-primary);
}

.filter-tab.active {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 2px 8px var(--accent-primary-glow);
}

/* ═══════════════════════════════════════════════════════════════
   TOAST NOTIFICATIONS
   ═══════════════════════════════════════════════════════════════ */

.toast-container {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1.25rem;
    font-size: 0.88rem;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideInRight 0.3s ease-out;
    min-width: 280px;
    max-width: 400px;
}

.toast.success {
    border-left: 3px solid var(--status-online);
}

.toast.error {
    border-left: 3px solid var(--status-offline);
}

.toast.warning {
    border-left: 3px solid var(--status-pending);
}

.toast.info {
    border-left: 3px solid var(--accent-primary);
}

.toast-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.toast-message {
    flex: 1;
}

/* ═══════════════════════════════════════════════════════════════
   EMPTY STATE
   ═══════════════════════════════════════════════════════════════ */

.empty-state {
    padding: 4rem 2rem;
    text-align: center;
}

.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.4;
}

.empty-state p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ═══════════════════════════════════════════════════════════════
   DEVICE DETAIL PAGE
   ═══════════════════════════════════════════════════════════════ */

.detail-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.detail-header .back-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-glass);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.detail-header .back-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.detail-info {
    flex: 1;
}

.detail-info h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.detail-info .device-id-label {
    font-family: 'Courier New', monospace;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.detail-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.command-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
}

.command-btn {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.6rem;
    padding: 0.7rem 1rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
    font-family: inherit;
    font-size: 0.82rem;
}

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

.command-btn .cmd-icon {
    display: flex;
    align-items: center;
}

.command-btn .cmd-label {
    font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════════
   LOADING SPINNER
   ═══════════════════════════════════════════════════════════════ */

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.spinner-lg {
    width: 36px;
    height: 36px;
    border-width: 3px;
}

.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    gap: 1rem;
}

.loading-container p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ═══════════════════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.fade-in {
    animation: fadeInUp 0.4s ease-out;
}

.fade-in-delay {
    animation: fadeInUp 0.5s ease-out 0.1s both;
}

.fade-in-delay-2 {
    animation: fadeInUp 0.5s ease-out 0.2s both;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

.mobile-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 1.3rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .mobile-toggle {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding: 1.25rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    .device-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .filter-tabs {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 2rem;
    }
}

/* ═══════════════════════════════════════════════════════════════
   DEVICE DETAIL OVERHAUL
   ═══════════════════════════════════════════════════════════════ */

.back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    width: 36px;
    height: 36px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.back-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-accent);
}

.back-btn .lucide {
    width: 18px;
    height: 18px;
}

.detail-layout {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    margin-top: 0.5rem;
}

.detail-sidebar {
    width: 220px;
    flex-shrink: 0;
    position: sticky;
    top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-right: 1.5rem;
    border-right: 1px solid var(--border-color);
}

.detail-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.detail-nav-item .lucide {
    width: 18px;
    height: 18px;
}

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

.detail-nav-item.active {
    color: var(--text-accent);
    background: var(--bg-accent-soft);
}

.detail-content {
    flex-grow: 1;
    min-width: 0;
}

.device-tab {
    display: none;
    animation: fadeIn 0.3s ease;
}

.device-tab.active {
    display: block;
}

.coin-price-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: transform var(--transition-fast);
}

.coin-price-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
}

.coin-price-card h4 {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.coin-price-card .price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.coin-price-card .meta {
    display: flex;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-accent);
}

@media (max-width: 1024px) {
    .detail-layout {
        flex-direction: column;
        gap: 1.5rem;
    }

    .detail-sidebar {
        width: 100%;
        flex-direction: row;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-right: 0;
        padding-bottom: 1rem;
        overflow-x: auto;
        white-space: nowrap;
        position: static;
    }
}