:root {
    --primary-red: #cf2e2e;
    --primary-blue: #1e73be;
    --text-dark: #111111;
    --text-gray: #636363;
    --bg-light: #f9f9f9;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --status-due: #d32f2f;
    --status-upcoming: #f57c00;
    --status-good: #388e3c;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    min-height: 100vh;
    line-height: 1.6;
}

h1, h2, h3 {
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 700;
    color: var(--text-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

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

.logo {
    max-height: 120px;
    width: auto;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--primary-red);
}

.subtitle {
    color: var(--text-gray);
    font-size: 1.1rem;
}

.hidden {
    display: none !important;
}

/* Controls / Search Form */
.controls {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.search-form {
    display: flex;
    gap: 20px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.input-group {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.search-container {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-gray);
}

input[type="text"], input[type="number"] {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--white);
    color: var(--text-dark);
    font-size: 15px;
    font-family: 'Open Sans', sans-serif;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(30, 115, 190, 0.15);
}

.actions-container {
    display: flex;
    gap: 10px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 600;
    font-family: 'Open Sans', sans-serif;
    border-radius: 4px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    line-height: 1.2;
}

.btn-icon {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.btn-primary:hover {
    background-color: #165b97;
    border-color: #165b97;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(30, 115, 190, 0.2);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-gray);
    border-color: var(--border-color);
}

.btn-outline:hover {
    background-color: var(--bg-light);
    color: var(--text-dark);
    border-color: #b0b0b0;
}

/* Vehicle Details */
.vehicle-details {
    margin-bottom: 30px;
    animation: fadeIn 0.4s ease;
}

.vehicle-details h2 {
    margin-bottom: 15px;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--primary-red);
    display: inline-block;
    padding-bottom: 5px;
}

.vehicle-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
}

.vehicle-info-row {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.vehicle-info-row strong {
    color: var(--text-gray);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.vehicle-info-row span {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* Loading & Errors */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    gap: 15px;
    color: var(--text-gray);
}

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

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

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

.error-message {
    background: #ffebee;
    color: #c62828;
    padding: 15px 20px;
    border-radius: 6px;
    border-left: 4px solid #c62828;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
    font-weight: 500;
    animation: fadeIn 0.3s ease;
}

.error-message svg {
    width: 24px;
    height: 24px;
}

/* Maintenance Section */
.maintenance-section {
    animation: fadeIn 0.5s ease;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.section-header h2 {
    font-size: 1.8rem;
}

.mileage-badge {
    background: var(--primary-blue);
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: 0 2px 5px rgba(30, 115, 190, 0.3);
}

.maintenance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border-top: 4px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.service-card.due {
    border-top-color: var(--status-due);
}

.service-card.upcoming {
    border-top-color: var(--status-upcoming);
}

.service-card.good {
    border-top-color: var(--status-good);
}

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

.service-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
}

.service-status {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 4px;
    letter-spacing: 0.05em;
}

.service-card.due .service-status {
    background: #ffebee;
    color: var(--status-due);
}

.service-card.upcoming .service-status {
    background: #fff3e0;
    color: var(--status-upcoming);
}

.service-card.good .service-status {
    background: #e8f5e9;
    color: var(--status-good);
}

.service-desc {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 15px;
    line-height: 1.5;
}

.service-interval {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-dark);
    background: var(--bg-light);
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.service-interval svg {
    width: 16px;
    height: 16px;
    color: var(--primary-blue);
}

@media (max-width: 768px) {
    .search-form {
        flex-direction: column;
        align-items: stretch;
    }
    .actions-container {
        flex-direction: column;
    }
    .actions-container .btn {
        width: 100%;
    }
}