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

:root {
    --primary: #16A34A;
    --primary-dark: #15803D;
    --primary-light: #22C55E;
    --accent: #4ADE80;
    --glass: rgba(22, 163, 74, 0.15);
    --primary-color: #16A34A;
    --secondary-color: #15803D;
    --success-color: #16A34A;
    --danger-color: #f56565;
    --warning-color: #ed8936;
    --info-color: #4299e1;
    --light-bg: #f7fafc;
    --dark-text: #2d3748;
    --border-color: #e2e8f0;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --bg-gradient: linear-gradient(180deg, #34D399 0%, #6EE7B7 40%, #A7F3D0 70%, #ECFDF5 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-gradient);
    color: var(--dark-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 20px;
}

.auth-box {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    max-width: 450px;
    width: 100%;
}

.auth-box h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 28px;
}

.auth-subtitle {
    text-align: center;
    color: #718096;
    margin-bottom: 30px;
    font-size: 16px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-text);
    font-weight: 500;
    font-size: 14px;
}

input, select, textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s;
    font-family: inherit;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(22, 163, 74, 0.3);
}

.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(22, 163, 74, 0.4);
}

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

.btn-success:hover {
    background: var(--primary-dark);
}

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

.btn-danger:hover {
    background: #e53e3e;
}

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

.auth-footer {
    text-align: center;
    margin-top: 20px;
    color: #718096;
    font-size: 14px;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 5px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert-danger {
    background: #fee;
    color: #c33;
    border-left-color: #c33;
}

.alert-success {
    background: #efe;
    color: #3c3;
    border-left-color: #3c3;
}

.alert-info {
    background: #eef;
    color: #33c;
    border-left-color: #33c;
}

.alert-warning {
    background: #ffeef0;
    color: #cc5522;
    border-left-color: #cc5522;
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 30px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-logo {
    padding: 0 20px;
    margin-bottom: 30px;
    font-size: 20px;
    font-weight: 700;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin: 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    border-left-color: white;
}

.sidebar-menu i {
    margin-right: 12px;
    font-size: 18px;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    background: var(--bg-gradient);
}

.topbar {
    background: white;
    padding: 20px 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.topbar-title h1 {
    font-size: 24px;
    color: var(--dark-text);
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-menu {
    position: relative;
}

.user-menu a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--dark-text);
    text-decoration: none;
    font-weight: 500;
}

.user-menu-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    min-width: 180px;
    box-shadow: var(--shadow);
    display: none;
    z-index: 100;
}

.user-menu:hover .user-menu-dropdown {
    display: block;
}

.user-menu-dropdown a {
    display: block;
    padding: 12px 16px;
    color: var(--dark-text);
    text-decoration: none;
    transition: background 0.3s;
}

.user-menu-dropdown a:hover {
    background: var(--light-bg);
}

.page-header {
    background: white;
    padding: 20px 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-header h2 {
    color: var(--dark-text);
    font-size: 20px;
}

.page-content {
    padding: 30px;
}

/* Cards and Content */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
    overflow: hidden;
}

.card-header {
    background: white;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
    color: var(--dark-text);
    font-size: 18px;
}

.card-body {
    padding: 20px;
}

.card-footer {
    background: var(--light-bg);
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.stat-card h4 {
    color: #718096;
    font-size: 13px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.stat-card .amount {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: var(--light-bg);
}

.table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: var(--dark-text);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
    background: #f9fafb;
}

.table-actions {
    display: flex;
    gap: 5px;
}

.table-actions .btn {
    padding: 5px 10px;
    font-size: 12px;
}

/* Plans Display */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.plan-card {
    background: white;
    border-radius: 8px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    border: 2px solid transparent;
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.plan-card h3 {
    color: var(--dark-text);
    font-size: 20px;
    margin-bottom: 15px;
}

.plan-details {
    list-style: none;
    margin: 20px 0;
    text-align: left;
}

.plan-details li {
    padding: 8px 0;
    color: #718096;
    border-bottom: 1px solid var(--border-color);
}

.plan-details li:last-child {
    border-bottom: none;
}

.plan-price {
    font-size: 24px;
    color: var(--primary-color);
    font-weight: 700;
    margin: 20px 0;
}

.plan-card .btn {
    width: 100%;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow);
}

.modal-header {
    margin-bottom: 20px;
}

.modal-header h2 {
    color: var(--dark-text);
}

.modal-close {
    float: right;
    cursor: pointer;
    font-size: 24px;
    color: #718096;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 0;
        z-index: 999;
    }

    .main-content {
        margin-left: 0;
    }

    .dashboard-wrapper.menu-open .sidebar {
        width: 260px;
    }

    .page-header {
        flex-direction: column;
        gap: 10px;
    }

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

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

    .topbar {
        flex-direction: column;
        gap: 15px;
    }
}

/* Utilities */
.text-center {
    text-align: center;
}

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

.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }

.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }

.p-20 { padding: 20px; }
.p-30 { padding: 30px; }

.text-muted { color: #718096; }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 3px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #c6f6d5;
    color: #22543d;
}

.badge-danger {
    background: #fed7d7;
    color: #742a2a;
}

.badge-warning {
    background: #fed8b1;
    color: #7c2d12;
}

.badge-info {
    background: #bee3f8;
    color: #2c5282;
}

/* Loading */
.spinner {
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

/* Video Tasks */
.video-task {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid var(--primary-color);
}

.video-task h4 {
    color: var(--dark-text);
    margin-bottom: 10px;
}

.video-status {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
}

.video-status.watched {
    color: var(--success-color);
}

.video-player {
    width: 100%;
    max-width: 600px;
    border-radius: 8px;
    margin: 20px 0;
}