/* ============================================================
   pages/submit.css — prompt submission form
   ============================================================ */

.submit-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 40px 0 32px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    transition: color 0.15s;
}
.back-link:hover { color: var(--text); }

.submit-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}

.submit-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 560px;
}

/* ── Layout ── */
.submit-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
    padding-top: 40px;
    padding-bottom: 80px;
    align-items: start;
}

/* ── Form ── */
.submit-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.form-row-2 {
    grid-template-columns: repeat(2, 1fr);
}

.form-section-label {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.prompt-textarea {
    min-height: 240px;
    font-family: 'DM Mono', 'Fira Code', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.7;
}

.char-counter {
    text-align: right;
    font-size: 0.75rem;
    color: var(--text-faint);
    margin-top: 6px;
}

.input-error {
    border-color: rgba(255, 92, 53, 0.5) !important;
}

.required {
    color: var(--accent-orange);
    margin-left: 2px;
}

.submit-actions {
    margin-top: 28px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.submit-note {
    font-size: 0.78rem;
    color: var(--text-faint);
    line-height: 1.5;
    max-width: 480px;
}

/* ── Success state ── */
.submit-success {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 40px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.success-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.submit-success h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.submit-success p {
    color: var(--text-muted);
    max-width: 480px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

.success-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* ── Sidebar tips ── */
.submit-tips {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: sticky;
    top: calc(68px + 20px);
}

.tips-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 22px;
}

.tips-card-example {
    background: var(--surface-2);
    border-color: rgba(255, 184, 0, 0.15);
}

.tips-title {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 14px;
}

.tips-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    list-style: none;
    padding: 0;
}

.tips-list li {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.5;
    padding-left: 14px;
    position: relative;
}

.tips-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-orange);
    font-weight: 700;
}

.tips-list li strong { color: var(--text); }

.example-prompt {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    font-family: monospace;
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.tips-note {
    font-size: 0.75rem;
    color: var(--text-faint);
    line-height: 1.5;
}

/* ── Responsive ── */
@media (max-width: 960px) {
    .submit-layout {
        grid-template-columns: 1fr;
    }

    .submit-tips {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .form-row { grid-template-columns: 1fr; }
    .form-row-2 { grid-template-columns: 1fr; }
    .submit-form { padding: 20px; }
    .submit-tips { grid-template-columns: 1fr; }
    .success-actions { flex-direction: column; align-items: center; }
}