:root {
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --card-bg: #ffffff;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --border-color: #e9ecef;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #111;
}

header p {
    color: #666;
    font-size: 1.1rem;
}

/* Input Section */
.input-section {
    max-width: 600px;
    margin: 0 auto 3rem auto;
    display: flex;
    gap: 10px;
}

input[type="text"] {
    flex: 1;
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: border-color 0.2s;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--accent-color);
}

button {
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background-color: var(--accent-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--accent-hover);
}

button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

/* Loading & Error */
.hidden {
    display: none !important;
}

#loading {
    text-align: center;
    margin: 2rem 0;
    color: #666;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    margin: 0 auto 1rem auto;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#error-msg {
    max-width: 600px;
    margin: 0 auto 2rem auto;
    padding: 1rem;
    background-color: #fee2e2;
    color: #991b1b;
    border-radius: 8px;
    text-align: center;
}

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-5px);
}

.card-header {
    padding: 1rem;
    background-color: #f1f5f9;
    border-bottom: 1px solid var(--border-color);
    font-weight: 700;
    color: #475569;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    background-color: #eee;
    position: relative;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0;
    transition: opacity 0.3s ease-in;
}

.card-image img.loaded {
    opacity: 1;
}

.img-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.card-body {
    padding: 1.5rem;
    flex-grow: 1;
}

.card-body p {
    font-size: 0.95rem;
    color: #333;
}

footer {
    text-align: center;
    margin-top: 4rem;
    color: #888;
    font-size: 0.9rem;
}

footer a {
    color: var(--accent-color);
    text-decoration: none;
}

@media (max-width: 600px) {
    .input-section {
        flex-direction: column;
    }
    
    body {
        padding: 1rem;
    }
}