/* ── Tokens ──────────────────────────────── */
:root {
    --bg:       #0f0f11;
    --surface:  #17171a;
    --card:     #1e1e22;
    --border:   #2a2a30;
    --border2:  #38383f;
    --text:     #e8e8ec;
    --muted:    #888892;
    --accent:   #6c63ff;
    --accent2:  #9d97ff;
    --success:  #3dd68c;
    --warning:  #f5a623;
    --danger:   #f05252;
    --radius:   10px;
    --radius-lg:16px;
    --mono:     'JetBrains Mono', 'Fira Mono', monospace;
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, 'Segoe UI', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
}

/* ── Layout ──────────────────────────────── */
.shell {
    display: grid;
    grid-template-columns: 300px 1fr;
    grid-template-rows: auto 1fr;
    min-height: 100vh;
}

header {
    grid-column: 1 / -1;
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--surface);
}

.logo-mark {
    width: 28px; height: 28px;
    background: var(--accent);
    border-radius: 7px;
    display: flex; align-items: center; justify-content: center;
}

.logo-mark svg { width: 16px; height: 16px; }

header h1 {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.header-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ── Sidebar ─────────────────────────────── */
.sidebar {
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.section-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}

/* ── Form controls ───────────────────────── */
label {
    display: block;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 5px;
}

input[type="text"],
input[type="number"],
select {
    width: 100%;
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 10px;
    border-radius: var(--radius);
    font-size: 13px;
    outline: none;
    transition: border-color 0.15s;
    margin-bottom: 12px;
}

input:focus, select:focus {
    border-color: var(--accent);
}

input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
    margin-bottom: 4px;
}

.range-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.range-row label { margin: 0; }

.range-val {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent2);
    font-family: var(--mono);
}

/* ── Watermark preview strip ─────────────── */
.wm-upload {
    border: 1px dashed var(--border2);
    border-radius: var(--radius);
    padding: 14px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    position: relative;
    margin-bottom: 12px;
}

.wm-upload:hover { border-color: var(--accent); background: rgba(108,99,255,0.05); }

.wm-upload input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.wm-upload p { font-size: 12px; color: var(--muted); }

#wm-preview {
    width: 100%;
    height: 60px;
    object-fit: contain;
    display: none;
    border-radius: 6px;
    margin-bottom: 8px;
}

/* ── Position picker ─────────────────────── */
.pos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    margin-bottom: 12px;
}

.pos-btn {
    aspect-ratio: 1;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    transition: border-color 0.1s, background 0.1s;
}

.pos-btn:hover { border-color: var(--accent2); }
.pos-btn.active { border-color: var(--accent); background: rgba(108,99,255,0.15); }

/* ── Main content ────────────────────────── */
.main {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ── Drop zone ───────────────────────────── */
#drop-zone {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    border: 2px dashed var(--border);
    margin: 20px;
    border-radius: var(--radius-lg);
    padding: 40px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    position: relative;
    min-height: 240px;
}

#drop-zone.drag-over {
    border-color: var(--accent);
    background: rgba(108,99,255,0.07);
}

#drop-zone input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.drop-icon {
    width: 52px; height: 52px;
    background: var(--card);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border);
}

.drop-icon svg { width: 24px; height: 24px; stroke: var(--accent2); }

#drop-zone h2 { font-size: 16px; font-weight: 600; }
#drop-zone p  { font-size: 13px; color: var(--muted); }

/* ── Queue stats bar ─────────────────────── */
.queue-bar {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.stat { display: flex; flex-direction: column; }
.stat-val { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; color: var(--accent2); }
.stat-lbl { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }

/* ── Thumbnail grid ──────────────────────── */
#thumb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
    gap: 4px;
    padding: 16px 20px;
    overflow-y: auto;
    max-height: 260px;
    display: none;
}

.thumb {
    aspect-ratio: 1;
    border-radius: 6px;
    overflow: hidden;
    position: relative;
    background: var(--card);
}

.thumb img { width: 100%; height: 100%; object-fit: cover; }

.thumb .badge {
    position: absolute;
    bottom: 3px; right: 3px;
    background: rgba(0,0,0,0.7);
    border-radius: 4px;
    padding: 1px 4px;
    font-size: 9px;
    font-family: var(--mono);
    color: #fff;
}

.thumb.processing { opacity: 0.5; }
.thumb.done .badge { background: rgba(61,214,140,0.85); }
.thumb.error .badge { background: rgba(240,82,82,0.85); }

/* ── Progress panel ──────────────────────── */
#progress-panel {
    display: none;
    padding: 16px 20px;
    flex-direction: column;
    gap: 14px;
}

.progress-block { display: flex; flex-direction: column; gap: 6px; }

.progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--muted);
}

.bar-track {
    height: 6px;
    background: var(--card);
    border-radius: 3px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s;
    width: 0%;
}

.bar-process { background: var(--accent); }
.bar-upload  { background: var(--success); }

.log {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 12px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    max-height: 120px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.log-line { line-height: 1.4; }
.log-line.ok    { color: var(--success); }
.log-line.warn  { color: var(--warning); }
.log-line.error { color: var(--danger); }

/* ── Buttons ─────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text);
    transition: background 0.15s, border-color 0.15s, transform 0.1s;
    white-space: nowrap;
}

.btn:hover { background: var(--border); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.btn-primary:hover { background: #5a53e0; border-color: #5a53e0; }

.btn-danger {
    background: transparent;
    border-color: var(--danger);
    color: var(--danger);
}

.btn-sm { padding: 5px 10px; font-size: 12px; }

/* ── FB login badge ──────────────────────── */
#fb-status {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    padding: 6px 12px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--card);
    cursor: pointer;
    transition: border-color 0.15s;
}

#fb-status:hover { border-color: var(--accent2); }

.fb-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--muted);
    flex-shrink: 0;
}

#fb-status.connected .fb-dot { background: var(--success); }

/* ── Suffix hint ─────────────────────────── */
.hint {
    font-size: 11px;
    color: var(--muted);
    margin-top: -8px;
    margin-bottom: 12px;
    font-family: var(--mono);
}

.hint span { color: var(--accent2); }

/* ── Summary modal ───────────────────────── */
#summary {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

.summary-card {
    background: var(--card);
    border: 1px solid var(--border2);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    max-width: 380px;
    width: 90%;
}

.summary-card h3 { font-size: 18px; margin-bottom: 16px; }

.summary-stat {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}

.summary-stat:last-of-type { border-bottom: none; }
.summary-stat strong { color: var(--accent2); }

/* ── App ID notice ───────────────────────── */
.notice {
    background: rgba(245,166,35,0.1);
    border: 1px solid rgba(245,166,35,0.3);
    border-radius: var(--radius);
    padding: 10px 12px;
    font-size: 12px;
    color: var(--warning);
    line-height: 1.5;
}

.notice code {
    background: rgba(245,166,35,0.15);
    padding: 1px 5px;
    border-radius: 4px;
    font-family: var(--mono);
}

/* ── Scrollbar ───────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }