*, *::before, *::after {
    box-sizing: border-box;
}

:root {
    --color-primary: #1a5276;
    --color-primary-hover: #154360;
    --color-accent: #2e86c1;
    --color-bg: #f5f7fa;
    --color-card: #ffffff;
    --color-text: #2c3e50;
    --color-text-secondary: #6c757d;
    --color-border: #dee2e6;
    --color-highlight: #e8f4fd;
    --color-error: #c0392b;
    --radius: 8px;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.container {
    width: 100%;
    max-width: 540px;
}

.search-card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem;
}

h1 {
    margin: 0 0 0.25rem;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-primary);
}

.subtitle {
    margin: 0 0 1.75rem;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Search group */
.search-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.input-wrapper {
    position: relative;
}

.input-wrapper input {
    width: 100%;
    height: 48px;
    padding: 0 2.5rem 0 0.875rem;
    font-size: 1rem;
    font-family: inherit;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-card);
    color: var(--color-text);
    outline: none;
    transition: border-color 0.15s;
}

.input-wrapper input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(46, 134, 193, 0.15);
}

.input-wrapper input::placeholder {
    color: #adb5bd;
}

/* Loading spinner */
.spinner {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: translateY(-50%) rotate(360deg); }
}

/* Suggestions dropdown */
.suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 100;
    margin: 0;
    padding: 0;
    list-style: none;
    background: var(--color-card);
    border: 2px solid var(--color-accent);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    max-height: 240px;
    overflow-y: auto;
}

.suggestions li {
    padding: 0.7rem 0.875rem;
    cursor: pointer;
    font-size: 0.95rem;
    border-bottom: 1px solid #f0f0f0;
    transition: background-color 0.1s;
}

.suggestions li:last-child {
    border-bottom: none;
}

.suggestions li[aria-selected="true"] {
    background-color: var(--color-highlight);
}

.suggestions li:hover {
    background-color: var(--color-highlight);
}

.suggestions li strong {
    color: var(--color-primary);
}

.suggestions .zip {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
}

/* Hint text */
.hint {
    margin: 0.5rem 0 0;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

/* Primary button */
.btn-primary {
    display: block;
    width: 100%;
    height: 48px;
    border: none;
    border-radius: var(--radius);
    background: var(--color-primary);
    color: #fff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.btn-primary:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Error message */
.error {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: var(--radius);
    background: #fdf2f2;
    color: var(--color-error);
    font-size: 0.9rem;
    text-align: center;
}

/* Responsive */
@media (max-width: 480px) {
    .search-card {
        padding: 1.25rem;
    }

    h1 {
        font-size: 1.35rem;
    }
}