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

:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --background: #f9fafb;
    --card-background: #ffffff;
    --border-color: #e5e7eb;
    --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);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Feedback Form Styles */
.feedback-container {
    max-width: 700px;
    margin: 40px auto;
    padding: 20px;
}

.feedback-card {
    background: var(--card-background);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    padding: 40px;
    animation: fadeIn 0.5s ease-in;
}

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

.feedback-header {
    text-align: center;
    margin-bottom: 40px;
}

.feedback-header h1 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 10px;
    font-weight: 700;
}

.feedback-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.personalized-greeting {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 30px;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 500;
}

.rating-section {
    margin-bottom: 30px;
}

.rating-section label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 1rem;
}

.rating-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.star-rating {
    display: flex;
    gap: 8px;
    font-size: 2rem;
}

.star {
    cursor: pointer;
    color: #d1d5db;
    transition: all 0.2s ease;
    user-select: none;
}

.star:hover,
.star.active {
    color: #fbbf24;
    transform: scale(1.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 1rem;
}

textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    min-height: 120px;
    transition: all 0.3s ease;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.btn {
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 100%;
}

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

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

.success-message {
    background: var(--success-color);
    color: white;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    animation: slideIn 0.5s ease-in;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.success-message h2 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.error-message {
    background: #fee2e2;
    color: var(--danger-color);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--danger-color);
}

/* Admin Login Styles */
.admin-container {
    max-width: 450px;
    margin: 100px auto;
    padding: 20px;
}

.login-card {
    background: var(--card-background);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    padding: 40px;
}

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

.login-header h1 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.input-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Admin Dashboard Styles */
.dashboard-container {
    padding: 20px;
    background: var(--background);
    min-height: 100vh;
}

.dashboard-header {
    background: var(--card-background);
    padding: 20px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.dashboard-title h1 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.dashboard-title p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.btn-logout {
    background: var(--danger-color);
    color: white;
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

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

.stat-card {
    background: var(--card-background);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.filters-section {
    background: var(--card-background);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: 30px;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.filter-group select,
.filter-group input {
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.feedback-list {
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.feedback-item {
    padding: 25px;
   	border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feedback-item:last-child {
    border-bottom: none;
}

.feedback-item:hover {
    background: var(--background);
}

.feedback-item-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.feedback-email {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.05rem;
}

.feedback-date {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.feedback-ratings {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.rating-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.rating-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.rating-stars {
    color: #fbbf24;
    font-size: 1.1rem;
}

.feedback-comments {
    margin-top: 15px;
    padding: 15px;
    background: var(--background);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.no-feedback {
    padding: 60px 20px;
    text-align: center;
    color: var(--text-secondary);
}

.no-feedback h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.btn-export {
    background: var(--success-color);
    color: white;
    padding: 10px 24px;
    border: none;
   	border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.btn-export:hover {
    background: #059669;
    transform: translateY(-2px);
}

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .feedback-card,
    .login-card {
        padding: 30px 20px;
    }
    .feedback-header h1,
    .login-header h1 {
        font-size: 1.5rem;
    }
    .dashboard-header { padding: 20px; }
    .dashboard-title h1 { font-size: 1.5rem; }
    .stat-value { font-size: 1.75rem; }
    .stats-grid { grid-template-columns: 1fr; }
    .feedback-ratings { grid-template-columns: 1fr; }
    .filters-grid { grid-template-columns: 1fr; }
    .star-rating { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .feedback-container,
    .admin-container { padding: 10px; margin: 20px auto; }
    .feedback-card,
    .login-card { padding: 25px 15px; }
    .feedback-header h1,
    .login-header h1 { font-size: 1.25rem; }
    .btn { padding: 12px 24px; font-size: 0.95rem; }
}

/* Utility Classes */
.hidden { display: none !important; }
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }