/* styles.css - Mobile-first, lightweight, accessible */
:root {
    --bg: #0f172a;
    --panel: #0b1220;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --accent: #22c55e;
    --accent-2: #34d399;
    --danger: #ef4444;
    --border: #1f2937;
    --focus: #38bdf8;
    --code: #111827;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    margin: 0;
    background: linear-gradient(180deg, var(--bg), #0b1220);
    color: var(--text);
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.5;
}

.header {
    padding: 1.25rem 1rem 0.5rem;
    text-align: center;
}

.header h1 {
    margin: 0;
    font-size: 1.5rem;
    letter-spacing: 0.2px;
}

.tagline {
    margin: 0.25rem 0 0.75rem;
    color: var(--muted);
    font-size: 0.95rem;
}

.container {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 1rem 2rem;
}

form, .result {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.field {
    margin-bottom: 1rem;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

textarea, input[type="text"], input[type="password"], select {
    width: 100%;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    outline: none;
}

textarea::placeholder, input::placeholder {
    color: #9aa5b1;
}

textarea:focus, input:focus, select:focus {
    border-color: var(--focus);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.25);
}

.help {
    margin-top: 0.35rem;
    font-size: 0.85rem;
    color: var(--muted);
}

.advanced {
    margin: 0.5rem 0 0.75rem;
    border: 1px dashed var(--border);
    border-radius: 10px;
    padding: 0.5rem 0.75rem;
}

.advanced summary {
    cursor: pointer;
    font-weight: 600;
}

.grid {
    display: grid;
    gap: 0.75rem;
}

@media (min-width: 640px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.api-key-row .api-key-input {
    display: flex;
    gap: 0.5rem;
}

.api-key-row .api-key-input input {
    flex: 1;
}

.secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem 0.75rem;
    border-radius: 10px;
    cursor: pointer;
}

.secondary:hover {
    border-color: #3b4252;
}

.actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

button[type="submit"], .result-actions button {
    appearance: none;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #062d16;
    font-weight: 700;
    padding: 0.65rem 0.95rem;
    cursor: pointer;
}

button[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
}

.loading {
    display: inline-block;
    opacity: 0;
    transition: opacity 0.2s ease;
    font-size: 0.95rem;
    color: var(--muted);
}

.loading.active {
    opacity: 1;
}

.status {
    min-height: 1.25rem;
    margin-top: 0.5rem;
    color: var(--muted);
}

.result {
    margin-top: 1rem;
}

.result-summary {
    margin-bottom: 0.75rem;
}

.result-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.result .secondary {
    color: var(--text);
}

.code {
    background: var(--code);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem;
    overflow: auto;
    color: #d1d5db;
    font-size: 0.85rem;
}

.footer {
    text-align: center;
    color: var(--muted);
    padding: 1rem;
    font-size: 0.85rem;
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 2px;
}