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

:root {
    --bg: #fafafa;
    --surface: #ffffff;
    --surface-hover: #f5f5f5;
    --border: #dbdbdb;
    --text: #262626;
    --text-muted: #8e8e8e;
    --accent: #e1306c;
    --accent-hover: #c13584;
    --error: #ed4956;
    --gradient: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    --gradient-alt: linear-gradient(45deg, #405de6, #5851db, #833ab4, #c13584, #e1306c, #fd1d1d);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 1.75rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: 'Instagram Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Form */
#extract-form {
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

input[type="url"] {
    flex: 1;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
}

input[type="url"]:focus {
    border-color: var(--accent);
}

input[type="url"]::placeholder {
    color: var(--text-muted);
}

button[type="submit"] {
    padding: 0.875rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    background: var(--gradient-alt);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

button[type="submit"]:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

button[type="submit"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.options {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.options label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    cursor: pointer;
}

.options input[type="checkbox"] {
    accent-color: var(--accent);
}

/* Error */
.error {
    padding: 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    border-radius: 8px;
    color: var(--error);
    margin-bottom: 1.5rem;
}

/* Loading */
.loading {
    text-align: center;
    padding: 3rem 1rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
    border-top-color: #833ab4;
    border-right-color: #e1306c;
    border-bottom-color: #fd1d1d;
}

.loading p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Results */
.results {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.result-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface-hover);
}

.section-header h2 {
    font-size: 1rem;
    font-weight: 500;
}

.copy-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.copy-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.copy-btn.copied {
    background: var(--gradient-alt);
    border-color: transparent;
    color: #fff;
}

.content {
    padding: 1.25rem;
    font-size: 0.9rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.content:empty::after {
    content: "No data extracted";
    color: var(--text-muted);
    font-style: italic;
}

/* Values grid */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.value-group h3 {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.value-group ul {
    list-style: none;
}

.value-group li {
    padding: 0.25rem 0;
    font-size: 0.9rem;
}

.value-group li:empty::after {
    content: "None found";
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.8rem;
}

/* Links */
#links-content a {
    color: #00376b;
    text-decoration: none;
    display: block;
    padding: 0.25rem 0;
    font-weight: 500;
}

#links-content a:hover {
    color: var(--accent);
}

/* Metadata */
.metadata .content {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.metadata .content span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.metadata .content strong {
    color: var(--text);
    font-weight: 500;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

footer p {
    color: var(--text-muted);
    font-size: 0.75rem;
}

footer a {
    color: #00376b;
    text-decoration: none;
    font-weight: 600;
}

footer a:hover {
    color: var(--accent);
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 600px) {
    .input-group {
        flex-direction: column;
    }

    button[type="submit"] {
        width: 100%;
        justify-content: center;
    }

    .options {
        flex-direction: column;
        gap: 0.75rem;
    }

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