:root {
    --bg: #0f1117;
    --panel: #171a23;
    --panel-2: #1d2130;
    --border: #2a3042;
    --text: #e6e9f0;
    --text-dim: #9aa3b5;
    --accent: #5b8cff;
    --accent-2: #7c5bff;
    --ok: #3ddc97;
    --warn: #ffb454;
    --err: #ff6b6b;
    --radius: 12px;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
    margin: 0;
    font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    background: radial-gradient(1200px 600px at 80% -10%, #1c2340 0%, var(--bg) 55%);
    color: var(--text);
    min-height: 100vh;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding: 20px 32px;
    border-bottom: 1px solid var(--border);
}

header h1 {
    margin: 0;
    font-size: 1.35rem;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.subtitle { margin: 2px 0 0; color: var(--text-dim); font-size: 0.85rem; }

.status-badges { display: flex; gap: 8px; flex-wrap: wrap; }

.badge {
    padding: 5px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.75rem;
    color: var(--text-dim);
    background: var(--panel);
}

.badge-ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.badge-warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }

main {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 24px;
    padding: 24px 32px;
    max-width: 1400px;
    margin: 0 auto;
}

@media (max-width: 980px) {
    main { grid-template-columns: 1fr; }
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
    align-self: start;
}

.history-panel {
    max-width: 1400px;
    margin: 0 auto 24px;
    padding: 0 32px;
}

.history-panel > div,
.history-empty {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.history-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
}
.history-heading h2 { margin: 0; font-size: 1rem; }
.history-heading p { margin: 4px 0 0; color: var(--text-dim); font-size: .8rem; }
.btn-secondary {
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    background: var(--panel-2);
    padding: 8px 11px;
    cursor: pointer;
    font: inherit;
    font-size: .8rem;
}
.btn-secondary:hover { border-color: var(--accent); }
.history-list { margin-top: 10px; display: grid; gap: 8px; background: none !important; border: none !important; }
.history-item { padding: 13px 16px; display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); }
.history-question { margin: 0; font-size: .9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-meta { margin: 5px 0 0; color: var(--text-dim); font-size: .75rem; }
.history-actions { display: flex; gap: 8px; align-items: center; }
.history-actions a { color: var(--accent); font-size: .78rem; }
.history-empty { margin-top: 10px; padding: 18px; color: var(--text-dim); font-size: .85rem; }
@media (max-width: 640px) {
    .history-panel { padding: 0 16px; }
    .history-item { grid-template-columns: 1fr; }
    .history-actions { justify-content: flex-start; }
}

.panel h2 {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 4px 0 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel h2 em { color: var(--text-dim); font-style: normal; font-weight: 400; font-size: 0.8rem; }

.step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
}

/* --- Dropzone --- */
.dropzone, #dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 28px 16px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    outline: none;
}

#dropzone:hover, #dropzone:focus-visible,
#dropzone.dragover {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, var(--panel));
}

.dz-icon { font-size: 1.8rem; margin-bottom: 6px; }
#dropzone p { margin: 4px 0; }
.dz-hint { font-size: 0.78rem; color: var(--text-dim); }

.file-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    padding: 10px 12px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
}

.file-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-size { color: var(--text-dim); font-size: 0.75rem; }

#file-remove {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.9rem;
}
#file-remove:hover { color: var(--err); }

/* --- Formulaire --- */
textarea, select, input[type="number"] {
    width: 100%;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    padding: 10px 12px;
    font: inherit;
    font-size: 0.88rem;
    resize: vertical;
}

textarea:focus, select:focus, input:focus { outline: 1px solid var(--accent); border-color: var(--accent); }

.advanced { margin-top: 18px; font-size: 0.88rem; }
.advanced summary { cursor: pointer; color: var(--text-dim); margin-bottom: 10px; }
.advanced label { display: block; margin: 12px 0 6px; font-size: 0.8rem; color: var(--text-dim); }
.advanced input[type="range"] { width: 100%; accent-color: var(--accent); }

.btn-primary {
    width: 100%;
    margin-top: 18px;
    padding: 13px;
    border: none;
    border-radius: 10px;
    font: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    cursor: pointer;
    transition: filter 0.15s, opacity 0.15s;
}

.btn-primary:hover:not(:disabled) { filter: brightness(1.1); }
.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; }

/* --- Résultat --- */
.placeholder { color: var(--text-dim); text-align: center; padding: 48px 12px; font-size: 0.9rem; }

.loading { text-align: center; padding: 48px 12px; color: var(--text-dim); }
.timer { color: var(--accent); font-variant-numeric: tabular-nums; font-weight: 600; }

.spinner {
    width: 34px;
    height: 34px;
    margin: 0 auto 14px;
    border-radius: 50%;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    animation: spin 0.8s linear infinite;
}

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

.error-card {
    border: 1px solid color-mix(in srgb, var(--err) 45%, transparent);
    background: color-mix(in srgb, var(--err) 8%, var(--panel));
    border-radius: var(--radius);
    padding: 16px;
}
.error-card h3 { margin: 0 0 8px; color: var(--err); font-size: 0.95rem; }
.error-card pre {
    background: var(--bg);
    padding: 10px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.75rem;
    white-space: pre-wrap;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 14px;
}

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

.stat {
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-value {
    font-size: 1.05rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.stat-main .stat-value {
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 1.3rem;
}

.stat-label { font-size: 0.7rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; }

.result-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; font-size: 0.75rem; }
.result-meta .badge { font-size: 0.72rem; }

.answer {
    line-height: 1.65;
    font-size: 0.92rem;
    word-wrap: break-word;
}

.answer h1, .answer h2, .answer h3, .answer h4 { margin: 18px 0 8px; line-height: 1.3; }
.answer h1 { font-size: 1.25rem; } .answer h2 { font-size: 1.1rem; } .answer h3 { font-size: 1rem; }
.answer p { margin: 10px 0; }
.answer ul, .answer ol { padding-left: 22px; margin: 8px 0; }
.answer li { margin: 4px 0; }
.answer code {
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 0.84em;
    font-family: "SF Mono", ui-monospace, "Cascadia Code", Menlo, monospace;
}
.answer pre {
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    overflow-x: auto;
    margin: 12px 0;
}
.answer pre code { background: none; border: none; padding: 0; }
.answer blockquote {
    margin: 10px 0;
    padding: 6px 14px;
    border-left: 3px solid var(--accent);
    background: var(--panel-2);
    color: var(--text-dim);
    border-radius: 0 8px 8px 0;
}
.answer a { color: var(--accent); }
.answer hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }
.answer table { border-collapse: collapse; margin: 10px 0; font-size: 0.85rem; }
.answer th, .answer td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; }

.raw-details { margin-top: 16px; }
.raw-details summary { cursor: pointer; color: var(--text-dim); font-size: 0.8rem; }
.raw-details pre {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    overflow: auto;
    max-height: 320px;
    font-size: 0.72rem;
}

.reasoning-block { margin-top: 14px; margin-bottom: 10px; }
.reasoning-block summary { cursor: pointer; color: var(--text-dim); font-size: 0.8rem; }
.reasoning-block pre {
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-left: 3px solid var(--warn);
    border-radius: 8px;
    padding: 12px;
    overflow: auto;
    max-height: 260px;
    white-space: pre-wrap;
    font-size: 0.75rem;
    color: var(--text-dim);
}

.warning-banner {
    border: 1px solid color-mix(in srgb, var(--warn) 45%, transparent);
    background: color-mix(in srgb, var(--warn) 9%, var(--panel));
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 0.85rem;
    color: var(--warn);
    margin-bottom: 12px;
}

footer {
    text-align: center;
    padding: 18px;
    color: var(--text-dim);
    font-size: 0.75rem;
}
footer a { color: var(--accent); }
footer code { font-size: 0.72rem; background: var(--panel); padding: 2px 6px; border-radius: 4px; }