:root {
    --bg-dark: #0f1115;
    /* Very dark grayish black */
    --bg-surface: #17191e;
    /* Card background */
    --bg-surface-hover: #1f2228;
    --text-main: #ffffff;
    --text-muted: #8b949e;
    --primary-blue: #0ea5e9;
    --primary-blue-hover: #0284c7;
    --primary-blue-glow: rgba(14, 165, 233, 0.15);
    --border-color: rgba(255, 255, 255, 0.05);
    --sidebar-width: 260px;
    --header-height: 70px;
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #22c55e;
    --font-family: 'Inter', sans-serif;
    --transition-speed: 0.3s;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow: hidden;
    /* App feels like native app */
}

/* Layout */
.layout-wrapper {
    display: flex;
    height: 100vh;
    width: 100vw;
}

.main-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background-color: var(--bg-dark);
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-speed) ease;
    z-index: 100;
}

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

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

.logo-icon-wrapper {
    width: 32px;
    height: 32px;
    background-color: var(--primary-blue-glow);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
}

.logo-icon {
    font-size: 20px;
}

.logo-text {
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0.5px;
}

.toggle-btn {
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
}

.toggle-btn:hover {
    color: var(--text-main);
}

.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 20px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-menu::-webkit-scrollbar {
    width: 4px;
}

.sidebar-menu::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.menu-label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 1px;
    margin: 16px 0 8px 12px;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    text-decoration: none;
    color: var(--text-muted);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    position: relative;
}

.menu-item:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-main);
}

.menu-item.active {
    background-color: var(--primary-blue-glow);
    color: var(--primary-blue);
    font-weight: 500;
}

.menu-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 60%;
    width: 3px;
    background-color: var(--primary-blue);
    border-radius: 0 4px 4px 0;
}

.menu-item i {
    font-size: 20px;
}

.badge-count {
    margin-left: auto;
    background-color: var(--primary-blue);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 20px;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary-blue);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.user-details {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.user-details .name {
    font-size: 13px;
    font-weight: 600;
}

.user-details .role {
    font-size: 11px;
    color: var(--text-muted);
}

.logout-icon {
    color: var(--text-muted);
    cursor: pointer;
    font-size: 20px;
}

.logout-icon:hover {
    color: var(--danger);
}

/* Header */
.top-header {
    height: var(--header-height);
    background-color: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
}

.header-left .page-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-main);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    /* Lighter overlay */
    backdrop-filter: blur(2px);
    /* Add blur effect */
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    /* Thinner modal to match screenshot */
    padding: 24px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.header-left .page-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-bar {
    display: flex;
    align-items: center;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 6px 12px;
    width: 250px;
    gap: 8px;
}

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

.search-bar input {
    background: transparent;
    border: none;
    color: var(--text-main);
    outline: none;
    width: 100%;
    font-size: 13px;
}

.search-bar .shortcut-key {
    background-color: var(--border-color);
    color: var(--text-muted);
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
}

.action-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.action-btn:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-main);
}

.notifications-btn .notification-dot {
    position: absolute;
    top: 6px;
    right: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--primary-blue);
    border-radius: 50%;
    border: 2px solid var(--bg-surface);
}

.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    background-color: var(--bg-surface);
    padding: 4px 8px 4px 4px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

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

/* Content Area */
.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
    position: relative;
}

.content-area::-webkit-scrollbar {
    width: 6px;
}

.content-area::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

/* Base Components for Pages */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s;
}

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

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 8px 16px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s;
}

.btn-outline:hover {
    background-color: var(--bg-surface-hover);
}

/* Grid System basic */
.grid {
    display: grid;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/* Loader */
.initial-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Global Form Styles */
.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}

.form-label {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    color: var(--text-main);
    outline: none;
    font-family: var(--font-family);
    transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary-blue);
}

.form-select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    color: var(--text-main);
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 400px;
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
    pointer-events: auto;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast i {
    font-size: 20px;
}

.toast-success i {
    color: var(--success);
}

.toast-error i {
    color: var(--danger);
}

.toast-info i {
    color: var(--primary-blue);
}