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

:root {
    /* High Density Light Theme Colors */
    --bg-main: #f4f7f6;        /* Soft, clean, very light grayish-gelo background */
    --bg-card: #ffffff;        /* Pure white for panels and cards */
    --bg-header: #ffffff;      /* Pure white for headers/navbar and sidebar */
    --border-color: #e2e8f0;   /* Clean light gray border lines */
    --text-primary: #1e293b;   /* Deep charcoal/slate for optimal legibility */
    --text-secondary: #64748b; /* Slate gray for secondary details and captions */
    
    --color-primary: #2563eb;        /* Vibrant Royal Blue (Accent) */
    --color-primary-hover: #1d4ed8;  /* Royal Blue hover state */
    --color-secondary: #475569;
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;
    --color-info: #06b6d4;
    
    /* Compact Dimensions for High Density Layout */
    --sidebar-width: 230px;
    --sidebar-collapsed-width: 60px;
    --header-height: 52px;
    --transition-speed: 0.2s;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    font-size: 13px;
    line-height: 1.4;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Layout Structure */
.app-layout {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* Sidebar (Left Rail) */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-header);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    transition: width var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-brand {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 16px;
    border-bottom: 1px solid var(--border-color);
    gap: 8px;
}

.sidebar-brand .logo-text {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: var(--color-primary);
    transition: opacity var(--transition-speed);
}

.sidebar-menu {
    list-style: none;
    padding: 10px 6px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    flex: 1;
    overflow-y: auto;
}

.sidebar-item a {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    font-size: 12.5px;
    transition: all 0.15s ease;
    gap: 10px;
}

.sidebar-item a:hover {
    background-color: rgba(37, 99, 235, 0.05);
    color: var(--text-primary);
}

.sidebar-item.active a {
    background-color: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    border-left: 2px solid var(--color-primary);
    border-radius: 0 4px 4px 0;
    padding-left: 10px;
}

/* Red stylized sidebar logout item */
.sidebar-item.sidebar-logout-item a {
    color: var(--color-error) !important;
    font-weight: 600;
    transition: all 0.15s ease;
}

.sidebar-item.sidebar-logout-item a:hover {
    background-color: rgba(239, 68, 68, 0.08) !important;
    color: #b91c1c !important;
}

.sidebar-item.sidebar-logout-item a i.text-error-icon {
    color: var(--color-error) !important;
}

.sidebar-footer {
    padding: 10px 12px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: rgba(0, 0, 0, 0.02);
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 12px;
}

.user-details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.user-details .name {
    font-size: 11.5px;
    font-weight: 600;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    color: var(--text-primary);
}

.user-details .role {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Main Content Area */
.main-wrapper {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    background-color: var(--bg-main);
}

.navbar {
    height: var(--header-height);
    background-color: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    position: sticky;
    top: 0;
    z-index: 90;
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-toggle-sidebar {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-toggle-sidebar:hover {
    color: var(--text-primary);
    background-color: rgba(0, 0, 0, 0.05);
}

.btn-toggle-sidebar i {
    width: 16px;
    height: 16px;
}

.page-title {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.2px;
    color: var(--text-primary);
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.content-container {
    padding: 16px;
    flex: 1;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    box-sizing: border-box;
}

/* Stat Cards & Telemetry Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
    transition: all 0.15s ease;
}

.stat-card:hover {
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    transform: translateY(-1px);
}

.stat-icon {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.stat-icon i {
    width: 16px;
    height: 16px;
}

.stat-icon.primary { background-color: rgba(37, 99, 235, 0.08); color: var(--color-primary); }
.stat-icon.success { background-color: rgba(16, 185, 129, 0.08); color: var(--color-success); }
.stat-icon.warning { background-color: rgba(245, 158, 11, 0.08); color: var(--color-warning); }
.stat-icon.danger { background-color: rgba(239, 68, 68, 0.08); color: var(--color-error); }

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-title {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-value {
    font-size: 18px;
    font-weight: 700;
    margin-top: 1px;
    color: var(--text-primary);
}

/* Custom Panels */
.panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 14px 16px;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.panel-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.panel-title i {
    width: 15px;
    height: 15px;
    color: var(--color-primary);
}

/* Compact Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

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

.custom-table th {
    padding: 8px 10px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1.5px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.01);
}

.custom-table td {
    padding: 8px 10px;
    font-size: 12.5px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.custom-table tr:hover td {
    background-color: rgba(0, 0, 0, 0.015);
}

/* Micro Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    gap: 3px;
    line-height: 1;
}

.badge i {
    width: 10px;
    height: 10px;
}

.badge-primary { background-color: rgba(37, 99, 235, 0.08); color: var(--color-primary); border: 1px solid rgba(37, 99, 235, 0.15); }
.badge-success { background-color: rgba(16, 185, 129, 0.08); color: var(--color-success); border: 1px solid rgba(16, 185, 129, 0.15); }
.badge-warning { background-color: rgba(245, 158, 11, 0.08); color: var(--color-warning); border: 1px solid rgba(245, 158, 11, 0.15); }
.badge-danger { background-color: rgba(239, 68, 68, 0.08); color: var(--color-error); border: 1px solid rgba(239, 68, 68, 0.15); }
.badge-info { background-color: rgba(6, 182, 212, 0.08); color: var(--color-info); border: 1px solid rgba(6, 182, 212, 0.15); }
.badge-secondary { background-color: rgba(100, 116, 139, 0.08); color: var(--text-secondary); border: 1px solid rgba(100, 116, 139, 0.15); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    border: 1px solid transparent;
    gap: 6px;
    line-height: 1.2;
}

.btn-primary { background-color: var(--color-primary); color: white; }
.btn-primary:hover { background-color: var(--color-primary-hover); }

.btn-secondary { background-color: #ffffff; border-color: var(--border-color); color: var(--text-primary); }
.btn-secondary:hover { background-color: rgba(0, 0, 0, 0.03); border-color: var(--text-secondary); }

.btn-danger { background-color: var(--color-error); color: white; }
.btn-danger:hover { background-color: #d32f2f; }

.btn-sm {
    padding: 4px 8px;
    font-size: 11px;
    border-radius: 3px;
}

/* Form Controls (High Density) */
.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    font-size: 11.5px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.form-control {
    width: 100%;
    padding: 6px 10px;
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 12.5px;
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
    outline: none;
}

textarea.form-control {
    resize: vertical;
    min-height: 70px;
}

.form-row-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

/* Timeline / Evolution */
.timeline {
    position: relative;
    padding-left: 14px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 3px;
    top: 4px;
    bottom: 4px;
    width: 1.5px;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 14px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -14px;
    top: 4px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: var(--color-primary);
    border: 1.5px solid var(--bg-card);
}

.timeline-content {
    background-color: rgba(0, 0, 0, 0.01);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px 12px;
}

.timeline-title {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-primary);
}

.timeline-date {
    font-size: 10px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.timeline-text {
    font-size: 11.5px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Alert Boxes */
.alert {
    padding: 8px 12px;
    border-radius: 4px;
    margin-bottom: 12px;
    font-size: 12px;
    line-height: 1.4;
}

.alert-success {
    background-color: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.alert-danger {
    background-color: #fef2f2;
    border: 1px solid #fca5a5;
    color: #991b1b;
}

/* Footer Section */
footer {
    padding: 12px 16px;
    background-color: var(--bg-header);
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: auto;
}

/* Grid layout for Dashboard panels */
.panel-grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr)) !important;
    gap: 16px !important;
}

/* Responsive & Mobile Layout */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .main-wrapper {
        margin-left: 0 !important;
    }
    body.sidebar-open .sidebar {
        transform: translateX(0);
    }
    body.sidebar-open .main-wrapper {
        transform: translateX(var(--sidebar-width));
    }
    .panel-grid-layout {
        grid-template-columns: 1fr !important;
    }
}

/* ==========================================
   LOGIN PAGE PREMIUM LIGHT STYLES
   ========================================== */
body.login-body {
    background-color: #f4f7f6; /* Soft light-gelo background */
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 440px;
    background-color: #ffffff; /* Pure white */
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.04); /* Soft diffuses shadow */
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 32px;
    font-weight: 800;
    color: var(--color-primary); /* Royal Blue */
    margin-bottom: 8px;
    letter-spacing: -0.8px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 13.5px;
}

.login-footer {
    text-align: center;
    margin-top: 30px;
    font-size: 11.5px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}

.btn-submit {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    background-color: var(--color-primary);
    color: #ffffff;
    border: none;
    cursor: pointer;
    transition: background-color 0.15s, transform 0.1s;
    margin-top: 10px;
}

.btn-submit:hover {
    background-color: var(--color-primary-hover);
}

.btn-submit:active {
    transform: scale(0.98);
}