/* V-Plan Modern CSS with Animations and Dark Mode */

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

:root {
    /* Light Mode Colors */
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #a78bfa;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
    
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* Dark Mode Colors */
body.dark-mode {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fade-in {
    animation: fadeIn var(--transition-base);
}

.animate-slide-in {
    animation: slideIn var(--transition-base);
}

.animate-slide-up {
    animation: slideUp var(--transition-base);
}

/* Auth Page Styles */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 450px;
    animation: fadeIn var(--transition-slow);
}

.auth-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 40px;
    animation: slideUp var(--transition-slow);
}

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

.auth-header h1 {
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.auth-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
}

.auth-tab {
    flex: 1;
    padding: 12px 20px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.auth-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.auth-tab-content {
    display: none;
}

.auth-tab-content.active {
    display: block;
    animation: fadeIn var(--transition-base);
}

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

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

.form-group label i {
    margin-right: 8px;
    color: var(--primary-color);
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.error-text {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--danger-color);
}

.btn-primary {
    width: 100%;
    padding: 14px 24px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.auth-message {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 14px;
    animation: slideUp var(--transition-base);
}

.auth-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.auth-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
    animation: fadeIn var(--transition-base);
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 30px;
    max-width: 400px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    animation: slideUp var(--transition-base);
    position: relative;
}

.modal-content .close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: 300;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

/* Admin Login Styles */
.admin-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    padding: 20px;
}

.admin-login-wrapper {
    width: 100%;
    max-width: 420px;
    animation: fadeIn var(--transition-slow);
}

.admin-login-box {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 40px;
    animation: slideUp var(--transition-slow);
}

.admin-login-logo {
    text-align: center;
    margin-bottom: 20px;
}

.admin-login-logo i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.admin-login-logo h2 {
    font-size: 28px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-login-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 30px;
}

.admin-login-form {
    margin-bottom: 20px;
}

.admin-login-btn {
    margin-top: 10px;
}

.admin-login-footer {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* User Dashboard Styles */
.user-page-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: all var(--transition-base);
    z-index: 100;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.sidebar-header img {
    max-height: 50px;
    width: auto;
}

.sidebar-header h2 {
    font-size: 24px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-menu {
    flex: 1;
    list-style: none;
    padding: 20px 0;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
    border-left: 3px solid transparent;
    font-size: 14px;
    font-weight: 500;
}

.sidebar-menu li a i {
    width: 24px;
    margin-right: 12px;
    font-size: 18px;
}

.sidebar-menu li a:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.sidebar-menu li a.active {
    background: var(--bg-secondary);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 600;
}

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

.sidebar-footer a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
    border-radius: var(--radius-md);
}

.sidebar-footer a:hover {
    background: var(--bg-secondary);
    color: var(--danger-color);
}

.main-wrapper {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 30px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.welcome-message {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-wallet-balance {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
}

.header-wallet-balance:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
}

.theme-toggle-btn {
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-md);
    padding: 10px;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 20px;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.theme-toggle-btn:hover {
    background: var(--bg-tertiary);
    transform: rotate(15deg);
}

.theme-toggle-btn i {
    transition: transform var(--transition-base);
}

.main-content {
    flex: 1;
    padding: 30px;
}

.page-title {
    margin-bottom: 30px;
    animation: fadeIn var(--transition-base);
}

.page-title h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.page-title p {
    color: var(--text-secondary);
    font-size: 16px;
}

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

.stat-box {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all var(--transition-base);
    animation: slideUp var(--transition-base);
    border: 1px solid var(--border-color);
}

.stat-box:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-box:nth-child(1) { animation-delay: 0.1s; }
.stat-box:nth-child(2) { animation-delay: 0.2s; }
.stat-box:nth-child(3) { animation-delay: 0.3s; }

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    background: var(--gradient-primary);
}

.stat-info h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-info h3 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.stat-success .stat-icon {
    background: linear-gradient(135deg, var(--success-color) 0%, #34d399 100%);
}

.stat-info-blue .stat-icon {
    background: var(--gradient-primary);
}

/* Card Styles */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
    animation: fadeIn var(--transition-base);
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.card-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-body {
    padding: 24px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-wrapper {
        margin-left: 0;
    }
    
    .dashboard-stats-container {
        grid-template-columns: 1fr;
    }
    
    .auth-card {
        padding: 30px 20px;
    }
    
    .main-content {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .page-title h1 {
        font-size: 24px;
    }
    
    .stat-box {
        flex-direction: column;
        text-align: center;
    }
}

/* Profile Dropdown */
.profile-dropdown {
    position: relative;
}

.profile-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 10px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    min-width: 200px;
    z-index: 1000;
    animation: slideUp var(--transition-base);
}

.profile-dropdown-menu li {
    list-style: none;
}

.profile-dropdown-menu li a {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-base);
    font-size: 14px;
}

.profile-dropdown-menu li a i {
    margin-right: 10px;
    width: 20px;
}

.profile-dropdown-menu li a:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-4 {
    margin-bottom: 24px;
}

.mt-4 {
    margin-top: 24px;
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    display: inline-block;
}

/* Smooth Transitions */
* {
    transition: background-color var(--transition-base), 
                color var(--transition-base),
                border-color var(--transition-base);
}