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

:root {
    --bg: #0d0d0d;
    --bg-secondary: #161616;
    --bg-tertiary: #1a1a1a;
    --text: #e0e0e0;
    --text-muted: #888;
    --accent: #7c9885;
    --accent-hover: #9ab8a3;
    --border: #2a2a2a;
    --error: #c75050;
    --success: #5c8a5c;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

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

header h1 {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--text);
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* Navigation */
.tools-nav {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.tool-card {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

.tool-card:hover {
    border-color: var(--accent);
    color: var(--text);
}

.tool-card.active {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--bg-tertiary);
}

.tool-icon {
    font-size: 1.1rem;
}

.tool-name {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Tool sections */
.tool-section {
    display: none;
    animation: fadeIn 0.2s ease;
}

.tool-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.tool-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tool-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* Input group */
.input-group {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.input-group input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 1rem;
    font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
    outline: none;
    transition: border-color 0.2s;
}

.input-group input:focus {
    border-color: var(--accent);
}

.input-group input::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

.input-group button {
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    border: none;
    border-radius: 6px;
    color: var(--bg);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
}

.input-group button:hover {
    background: var(--accent-hover);
}

.input-group button:active {
    transform: scale(0.98);
}

/* Results grid */
.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

.result-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.75rem 1rem;
}

.result-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-value {
    font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
    font-size: 0.95rem;
    color: var(--text);
    cursor: pointer;
    transition: color 0.2s;
}

.result-value:hover {
    color: var(--accent);
}

.result-flags {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    grid-column: 1 / -1;
}

.flag {
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
    opacity: 0.5;
}

.flag.active {
    opacity: 1;
    border-color: var(--accent);
    color: var(--accent);
}

/* Vendor result card */
.result-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
}

.vendor-info {
    margin-bottom: 0.75rem;
}

.vendor-label {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.vendor-name {
    display: block;
    font-size: 1.25rem;
    font-weight: 500;
    margin-top: 0.25rem;
}

.vendor-country-badge {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.2rem 0.6rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.vendor-details {
    margin: 1rem 0;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

.vendor-detail {
    display: flex;
    justify-content: space-between;
    padding: 0.35rem 0;
    font-size: 0.9rem;
}

.vendor-detail:not(:last-child) {
    border-bottom: 1px solid var(--border);
}

.detail-label {
    color: var(--text-muted);
}

.detail-value {
    color: var(--text);
    font-weight: 500;
}

.vendor-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.vendor-cached {
    padding: 0.15rem 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
}

.vendor-cached.from-cache {
    color: var(--success);
}

/* Error */
.error {
    background: rgba(199, 80, 80, 0.1);
    border: 1px solid var(--error);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    color: var(--error);
    font-size: 0.9rem;
}

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

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

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

.stats span {
    color: var(--accent);
    font-weight: 500;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }

    .tools-nav {
        flex-direction: column;
    }

    .input-group {
        flex-direction: column;
    }

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