:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --bg-color: #f8f9fa;
    --text-color: #2c3e50;
    --text-light: #6c757d;
    --card-bg: #ffffff;
    --button-bg: linear-gradient(135deg, #3498db, #2980b9);
    --button-hover: linear-gradient(135deg, #2980b9, #21618c);
    --input-bg: #ffffff;
    --input-border: #dee2e6;
    --input-focus: #3498db;
    --table-bg: #ffffff;
    --table-border: #dee2e6;
    --table-header-bg: #f8f9fa;
    --error-color: #e74c3c;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);
    --backdrop: rgba(255, 255, 255, 0.98);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-color);
    transition: var(--transition);
    line-height: 1.6;
}

.hero-section {
    position: relative;
    height: 100vh;
    background-image: url('tractor.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}



.hero-overlay h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
    color: white;
    position: relative;
    z-index: 2;
}

.hero-overlay #role-selection {
    margin-top: 30px;
}

.hero-overlay #role-selection h2 {
    color: white;
    margin-bottom: 20px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.7);
}

.hero-overlay button {
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-color);
    border: 2px solid white;
    margin: 0 10px;
    transition: all 0.3s ease;
}

.hero-overlay button:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.login-page {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
}

.login-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    pointer-events: none;
}
h1, h2, h3, h4 {
    color: var(--text-color);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}
h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}
h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}
button {
    margin: 10px;
    padding: 12px 25px;
    font-size: 1.1rem;
    font-weight: bold;
    background: var(--button-bg);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px var(--shadow);
}
button:hover {
    background: var(--button-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px var(--shadow);
}
.hidden {
    display: none;
}
#error, .error {
    color: var(--error-color);
    margin-top: 8px;
}
input,
select {
    margin: 8px 0;
    padding: 10px;
    font-size: 1rem;
    border: 1px solid var(--input-border);
    border-radius: 5px;
    width: 100%;
    max-width: 300px;
    box-sizing: border-box;
    background-color: var(--input-bg);
    color: var(--text-color);
}
input:focus,
select:focus {
    outline: none;
    border-color: var(--input-focus);
    box-shadow: 0 0 5px rgba(49, 130, 206, 0.5);
}
#work-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--table-bg);
    color: var(--text-color);
}
#work-table th, #work-table td {
    border: 1px solid var(--table-border);
    padding: 6px;
    text-align: center;
}
/* Card Components */
.card {
    max-width: 900px;
    width: 100%;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px var(--shadow-lg);
    border: 1px solid var(--table-border);
    overflow: hidden;
    animation: slideIn 0.5s ease-out;
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 15px 40px var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: white;
    padding: 25px 35px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.card-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="50" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="50" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.card-header h1, .card-header h2 {
    margin: 0 0 10px 0;
    color: white;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    position: relative;
    z-index: 1;
}

.subtitle {
    margin: 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    font-weight: 400;
    position: relative;
    z-index: 1;
}

.card-body {
    padding: 35px;
}

/* Form alignment improvements */
.input-group {
    display: flex;
    align-items: center;
    margin: 15px 0;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    padding: 0 12px;
}

.input-group i {
    color: var(--text-light);
    margin-right: 10px;
    font-size: 1.1rem;
}

.input-group input {
    flex: 1;
    border: none;
    padding: 12px 0;
    margin: 0;
    max-width: none;
    background: transparent;
}

.input-group input:focus {
    outline: none;
    box-shadow: none;
}

.login-btn {
    width: 100%;
    max-width: 300px;
    margin: 20px auto;
    display: block;
}

.back-btn {
    background: var(--text-light);
    margin-top: 15px;
}

#role-selection, #owner-login-section {
    text-align: center;
}

#owner-login-section {
    max-width: 400px;
    margin: 0 auto;
}

/* Page container for centered layout */
.page-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* Form styling improvements */
.card-body form {
    max-width: 400px;
    margin: 0 auto;
}

.card-body form input,
.card-body form select {
    display: block;
    width: 100%;
    max-width: 100%;
}

/* Action buttons container */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 400px;
    margin: 0 auto;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 15px 20px;
    font-size: 1.1rem;
}

.action-btn i {
    font-size: 1.3rem;
}

/* Table container */
.table-container {
    overflow-x: auto;
    margin-top: 20px;
}

#work-table {
    min-width: 600px;
}

/* Modern Table Styling */
.modern-table {
    width: 100%;
    min-width: 600px;
    border-collapse: separate;
    border-spacing: 0;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.modern-table th {
    background: linear-gradient(135deg, #2c3e50, #34495e);
    color: white;
    font-weight: 600;
    padding: 16px 14px;
    text-align: center;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    border: none;
}

.modern-table th:first-child {
    border-top-left-radius: 16px;
}

.modern-table th:last-child {
    border-top-right-radius: 16px;
}

.modern-table td {
    padding: 16px 14px;
    text-align: center;
    border-bottom: 1px solid #ecf0f1;
    transition: all 0.2s;
}

.modern-table tbody tr:hover {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    transform: scale(1.01);
}

.modern-table tbody tr:last-child td {
    border-bottom: none;
}

/* Amount styling */
.amount {
    font-weight: 700;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.amount-paid {
    color: #27ae60;
}

.amount-balance {
    color: #e74c3c;
}

/* Total row */
.total-row {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    font-weight: bold;
}

.total-row td {
    padding: 18px 14px;
    font-size: 1.1rem;
}

/* Section title */
.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 1.4rem;
}

/* Language selector dark */
.language-selector {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 25px 0;
    padding: 20px;
    background: linear-gradient(135deg, #2c3e50, #34495e);
    border-radius: 12px;
}

.language-selector label {
    color: white;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.language-selector select {
    width: auto;
    min-width: 150px;
    padding: 10px 15px;
    border-radius: 8px;
    border: 2px solid #3498db;
    background: white;
    color: #2c3e50;
    font-weight: 600;
    cursor: pointer;
}

/* Info card styling */
.info-card {
    background: var(--bg-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid var(--table-border);
}

.info-card h3 {
    margin-top: 0;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-content p {
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-content ul {
    margin: 10px 0;
    padding-left: 20px;
}

.info-content li {
    margin: 5px 0;
}

/* Language selector */
.language-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 20px 0;
}

/* Table Action Buttons */
.table-btn {
    padding: 8px 14px;
    font-size: 0.85rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 600;
    margin: 2px;
}

.view-btn {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
}

.view-btn:hover {
    background: linear-gradient(135deg, #2980b9, #21618c);
    transform: translateY(-1px);
}

.update-btn {
    background: linear-gradient(135deg, #27ae60, #1e8449);
    color: white;
}

.update-btn:hover {
    background: linear-gradient(135deg, #1e8449, #196f3d);
    transform: translateY(-1px);
}

.edit-btn {
    background: linear-gradient(135deg, #f39c12, #d68910);
    color: white;
}

.edit-btn:hover {
    background: linear-gradient(135deg, #d68910, #b9770e);
    transform: translateY(-1px);
}

.delete-btn {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
}

.delete-btn:hover {
    background: linear-gradient(135deg, #c0392b, #a93226);
    transform: translateY(-1px);
}

/* Logout button */
.logout-btn {
    display: block;
    margin: 30px auto 0;
    background: var(--accent-color);
}

.logout-btn:hover {
    background: #c0392b;
}
#owner-section, #customer-section {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow);
}

/* Animations */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.fade-in {
    animation: fadeIn 0.5s ease-in;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Export buttons */
#export-buttons button {
    margin: 5px;
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* Header Styles */
.app-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--table-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

/* Welcome Card Enhancements */
.welcome-card {
    max-width: 900px;
    width: 100%;
}

.welcome-icon {
    text-align: center;
    margin-bottom: 20px;
}

.welcome-icon i {
    font-size: 4rem;
    color: var(--accent-color);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.welcome-card .card-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.welcome-card .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.feature-item {
    text-align: center;
    padding: 20px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-lg);
}

.feature-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature-item h3 {
    color: var(--text-color);
    margin-bottom: 10px;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Role Selection Section */
.role-selection-section h2 {
    text-align: center;
    color: var(--text-color);
    margin-bottom: 30px;
    font-size: 1.8rem;
}

/* Enhanced Role Buttons */
.role-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.role-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px;
    background: var(--card-bg);
    border: 2px solid var(--table-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
}

.role-btn:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px var(--shadow-lg);
    transform: translateY(-3px);
}

.role-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.role-info {
    flex: 1;
}

.role-title {
    display: block;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 5px;
}

.role-desc {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.role-btn i.fa-arrow-right {
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.role-btn:hover i.fa-arrow-right {
    transform: translateX(5px);
}

/* Footer Styles */
.app-footer {
    background: var(--card-bg);
    border-top: 1px solid var(--table-border);
    margin-top: auto;
}

/* Hide footer when owner login section is visible */
#owner-login-section:not(.hidden) ~ .app-footer,
#owner-section:not(.hidden) ~ .app-footer,
#customer-section:not(.hidden) ~ .app-footer {
    display: none;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.footer-section h4 {
    color: var(--text-color);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.footer-section p {
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.footer-section i {
    margin-right: 8px;
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--table-border);
    padding: 20px;
    text-align: center;
    background: rgba(0, 0, 0, 0.02);
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    h1 {
        font-size: 2rem;
    }
    h2 {
        font-size: 1.5rem;
    }
    button {
        padding: 10px 20px;
        font-size: 1rem;
    }
    input, select {
        max-width: 100%;
    }
    #role-selection, #owner-login-section {
        padding: 20px;
        max-width: 100%;
    }
    #owner-section, #customer-section {
        padding: 15px;
    }
    #work-table th, #work-table td {
        padding: 4px;
        font-size: 0.9rem;
    }
    #export-buttons button {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}