:root {
    --primary-color: #2c2c54;
    --secondary-color: #706fd3;
    --accent-color: #ff6348;
    --success-color: #2ed573;
    --warning-color: #ffa502;
    --danger-color: #ff4757;
    --text-primary: #2c2c54;
    --text-secondary: #5f5f79;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e1e4e8;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #f5f7fa 0%, #e8eef3 100%);
    min-height: 100vh;
}

/* Login Page Styles */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-container {
    background: var(--bg-white);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 48px;
    max-width: 480px;
    width: 100%;
}

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

.logo {
    display: inline-flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 16px;
}

.logo-text {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -1px;
}

.logo-year {
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary-color);
}

.login-header h1 {
    font-size: 28px;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 600;
}

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

.login-form {
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 24px;
}

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

.form-group input {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(112, 111, 211, 0.1);
}

.btn-primary {
    width: 100%;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

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

.btn-arrow {
    font-size: 20px;
    transition: transform 0.3s ease;
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

.error-message {
    margin-top: 16px;
    padding: 12px;
    background: #ffe0e0;
    color: var(--danger-color);
    border-radius: 6px;
    font-size: 14px;
    display: none;
}

.error-message.show {
    display: block;
}

.demo-info {
    padding: 20px;
    background: var(--bg-light);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.demo-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.demo-accounts {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.demo-account {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 8px 12px;
    background: var(--bg-white);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.demo-account:hover {
    background: var(--secondary-color);
    color: white;
    transform: translateX(4px);
}

/* Dashboard Styles */
.dashboard-page {
    background: var(--bg-light);
}

.header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 32px;
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.header-logo .logo-text {
    font-size: 24px;
}

.header-logo .logo-year {
    font-size: 12px;
}

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

.user-name {
    font-weight: 500;
    color: var(--text-primary);
}

.logout-btn {
    padding: 8px 16px;
    font-size: 14px;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.logout-btn:hover {
    background: var(--bg-light);
    border-color: var(--text-secondary);
}

.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px;
}

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

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

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-change {
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.positive {
    color: var(--success-color);
}

.stat-change.negative {
    color: var(--danger-color);
}

.content-section {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

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

.section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.design-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.design-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.design-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.design-info {
    padding: 20px;
}

.design-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.design-date {
    font-size: 14px;
    color: var(--text-secondary);
}

.design-status {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.design-status.active {
    background: #d4f4dd;
    color: var(--success-color);
}

.design-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.design-stat {
    text-align: center;
}

.design-stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.design-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.reviews-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.review-card {
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.review-card:hover {
    box-shadow: var(--shadow-sm);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.review-rating {
    display: flex;
    gap: 4px;
}

.star {
    color: #ffd700;
    font-size: 16px;
}

.star.empty {
    color: #ddd;
}

.review-date {
    font-size: 13px;
    color: var(--text-secondary);
}

.review-text {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .login-container {
        padding: 32px 24px;
    }

    .main-container {
        padding: 20px;
    }

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

    .content-section {
        padding: 20px;
    }
}