:root {
    /* Color Palette */
    --primary: #15B85D;
    --primary-dark: #0B8F46;
    --primary-light: #C4F7D7;
    --bg-light: #F4F9F6;
    --bg-main: #FFFFFF;

    --text-main: #141A16;
    --text-muted: #627267;
    --border: #E8F0EA;

    --success: #15B85D;
    --danger: #FF3B30;
    --warning: #FFCC00;

    /* Shadows & Effects */
    --shadow-sm: 0 4px 12px rgba(21, 184, 93, 0.04);
    --shadow-md: 0 12px 24px rgba(21, 184, 93, 0.08);
    --shadow-lg: 0 24px 48px rgba(21, 184, 93, 0.12);
    --shadow-btn: 0 8px 24px rgba(21, 184, 93, 0.3);

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --font-family: 'Tajawal', sans-serif;
    --font-number: 'Outfit', sans-serif;
}

[data-theme='dark'] {
    --bg-light: #06120A;
    --bg-main: #0B1C12;
    --text-main: #F4F9F6;
    --text-muted: #8AA495;
    --border: #143020;
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 12px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.5);
    --shadow-btn: 0 8px 24px rgba(21, 184, 93, 0.2);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-light);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

/* Custom Sleek Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(136, 146, 176, 0.3);
    border-radius: 10px;
    transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(21, 184, 93, 0.6);
}

/* Glassmorphism Classes */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-lg);
}

[data-theme='dark'] .glass-panel {
    background: rgba(11, 28, 18, 0.6);
    border: 1px solid rgba(21, 184, 93, 0.1);
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow-btn);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(21, 184, 93, 0.4);
}

/* Inputs */
.input-group {
    margin-bottom: 24px;
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-muted);
}

.input-group input {
    width: 100%;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--bg-main);
    color: var(--text-main);
    font-size: 16px;
    transition: var(--transition);
    font-family: var(--font-family);
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
    outline: none;
}

[data-theme='dark'] .input-group input:focus {
    box-shadow: 0 0 0 4px rgba(21, 184, 93, 0.2);
}

/* Loader */
.loader-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.loading-logo {
    width: 100px;
    height: 100px;
    object-fit: contain;
    animation: pulse 1.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(0.85);
        opacity: 0.7;
    }
}

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" opacity="0.03"><pattern id="pattern" width="60" height="60" patternUnits="userSpaceOnUse"><path d="M30 0l30 30-30 30L0 30z" fill="%2315B85D"/></pattern><rect width="100%" height="100%" fill="url(%23pattern)"/></svg>') var(--bg-light);
}

.login-card {
    width: 100%;
    max-width: 440px;
    padding: 48px 40px;
    text-align: center;
}

.login-card .logo {
    width: 80px;
    height: 80px;
    background: var(--primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: white;
    font-size: 40px;
    box-shadow: var(--shadow-btn);
}

.login-card h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 8px;
}

.login-card p {
    color: var(--text-muted);
    margin-bottom: 40px;
}

.login-form {
    text-align: right;
}

/* Dashboard Layout */
.dashboard-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 100vh;
    overflow: hidden;
    transition: var(--transition);
}

.master-container {
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* Sidebar */
.sidebar {
    background: var(--bg-main);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 24px 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 10;
}

.sidebar-header {
    padding: 0 24px 32px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header .icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

.sidebar-header h1 {
    font-size: 20px;
    font-weight: 800;
}

.nav-menu {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 0 16px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}

.nav-item:hover,
.nav-item.active {
    background: var(--primary-light);
    color: var(--primary-dark);
}

[data-theme='dark'] .nav-item:hover,
[data-theme='dark'] .nav-item.active {
    background: rgba(21, 184, 93, 0.1);
    color: var(--primary);
}

.nav-item i {
    font-size: 24px;
}

/* Top Header */
.top-header {
    height: auto;
    padding: 20px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-main);
    /* White in light mode */
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0px;
    z-index: 5;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.icon-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--bg-main);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--text-main);
    transition: var(--transition);
}

.icon-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.page-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--bg-main);
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-family: var(--font-number);
    color: var(--text-main);
    transition: var(--transition);
    cursor: pointer;
}

.page-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.page-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-main);
    padding: 8px 16px 8px 8px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    cursor: pointer;
}

.user-profile img {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

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

.user-name {
    font-size: 14px;
    font-weight: 700;
}

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

/* Main Content */
.main-content {
    padding: 32px 40px;
    flex: 1;
}

.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-size: 28px;
    font-weight: 800;
}

/* Dashboard Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.stat-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    overflow: hidden;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--primary-light);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

[data-theme='dark'] .stat-icon {
    background: rgba(21, 184, 93, 0.15);
    color: var(--primary);
}

.stat-info .value {
    font-size: 32px;
    font-weight: 800;
    font-family: var(--font-number);
    margin-bottom: 4px;
}

.stat-info .label {
    color: var(--text-muted);
    font-weight: 600;
}

/* List/Table Container */
.content-section {
    background: var(--bg-main);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 24px;
}

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

.section-title {
    font-size: 18px;
    font-weight: 700;
}

/* Toasts */
.toast-container {
    position: fixed;
    bottom: 32px;
    left: 32px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background: var(--bg-main);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 16px;
    transform: translateX(-100%);
    opacity: 0;
    animation: slideIn 0.3s forwards;
    border-right: 4px solid var(--primary);
}

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

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

@media (max-width: 768px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
        /* Can add hamburger menu logic later */
    }

    .top-header {
        padding: 16px 20px;
        margin: 16px 20px;
        top: 0px;
    }

    .main-content {
        padding: 24px 20px;
    }
}

/* Modal System */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background: var(--bg-panel, var(--bg-main));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    padding: 24px;
    transform: translateY(20px) scale(0.95);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-overlay.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
    margin-bottom: 24px;
}

.modal-title {
    font-size: 20px;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-close {
    background: var(--bg-light);
    border: 1px solid var(--border);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--danger);
    border-color: var(--danger);
    background: rgba(255, 59, 48, 0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-muted);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    background: var(--bg-light);
    border: 1px solid var(--border);
    padding: 14px 16px;
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
    outline: none;
}

[data-theme='dark'] .form-group input[type="text"]:focus,
[data-theme='dark'] .form-group input[type="number"]:focus,
[data-theme='dark'] .form-group select:focus {
    box-shadow: 0 0 0 4px rgba(21, 184, 93, 0.2);
}

.switch-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    margin-bottom: 16px;
}

.switch-label {
    font-weight: 600;
    font-size: 14px;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border);
    transition: .3s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked+.toggle-slider {
    background-color: var(--primary);
}

.toggle-switch input:checked+.toggle-slider:before {
    transform: translateX(20px);
}

[data-theme='dark'] .toggle-slider:before {
    background-color: #E8F0EA;
}