/*
 * Tasarım değişkenleri. Varsayılan tema A · Atölye; diğer temalar dosyanın sonunda
 * html[data-theme="…"] ile bu değişkenleri (ve gerekirse düzeni) değiştirir.
 */
:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --panel-alt: #f5f7fa;
  --input-bg: #ffffff;
  --border: #e3e6ea;
  --border-strong: #c9ced6;
  --text: #1f2933;
  --text-muted: #5b6573;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #eef3ff;
  --accent-border: #a9c1f5;
  --accent-text: #ffffff;
  --danger: #c4282f;
  --danger-bg: #fdecee;
  --success: #15803d;
  --success-bg: #ecfdf3;
  --warn-text: #8a5300;
  --warn-bg: #fff6e0;
  --overlay-bg: rgba(255, 255, 255, .94);
  --shadow: 0 1px 2px rgba(16, 24, 40, .06);
  --shadow-float: 0 8px 24px rgba(16, 24, 40, .14);
  --status-bg: var(--panel);
  --status-text: var(--text-muted);
  --radius: 8px;
  --radius-lg: 12px;
  --gap: 10px;
  --toolbar-h: 54px;
  --status-h: 32px;
  --left-w: 290px;
  --right-w: 300px;
  --font: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: var(--font);
  --font-mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-family: var(--font);
  font-size: 13px;
  color: var(--text);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; overflow: hidden; background: var(--bg); }
body { font-family: var(--font); }

#app {
  display: grid;
  grid-template-columns: var(--left-w) 1fr var(--right-w);
  grid-template-rows: var(--toolbar-h) 1fr var(--status-h);
  grid-template-areas: "toolbar toolbar toolbar" "left viewport right" "status status status";
  height: 100vh;
  gap: var(--gap);
  padding: var(--gap);
}
/* Kart düzeni: her bölge ayrı yüzey */
.toolbar, .panel, #viewport, .statusbar { border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow); }

/* --- Kontroller --- */
button {
  font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 6px 12px; cursor: pointer; white-space: nowrap;
  transition: background .12s, border-color .12s;
}
button:hover:not(:disabled) { background: var(--panel-alt); border-color: var(--border-strong); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
button.primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }
button.danger { color: var(--danger); border-color: #f0b8bd; }
button.danger:hover:not(:disabled) { background: var(--danger-bg); border-color: var(--danger); }
button.active { background: var(--accent-soft); border-color: var(--accent-border); color: var(--accent); }
button.block { width: 100%; }
button.small { padding: 3px 8px; font-size: 12px; }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--input-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 5px 8px; min-width: 0;
}
textarea { resize: vertical; width: 100%; }
input[type="checkbox"] { width: auto; }
input[type="range"] { padding: 0; }
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid color-mix(in srgb, var(--accent) 40%, transparent); outline-offset: 1px; border-color: var(--accent); }
input.invalid { border-color: var(--danger); background: var(--danger-bg); }

/* --- Araç çubuğu --- */
.toolbar {
  grid-area: toolbar; display: flex; align-items: center; gap: 10px; padding: 0 12px;
  background: var(--panel); min-width: 0; overflow-x: auto;
}
.brand { font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: .2px; margin-right: 4px; white-space: nowrap; }
.brand span { color: var(--accent); }
.tool-group { display: flex; align-items: center; gap: 6px; padding-left: 10px; border-left: 1px solid var(--border); }
.tool-group label { display: flex; align-items: center; gap: 6px; color: var(--text-muted); white-space: nowrap; }
#project-name { width: 180px; }
.spacer { flex: 1; }

/* --- Paneller --- */
.panel { background: var(--panel); overflow-y: auto; overflow-x: hidden; display: flex; flex-direction: column; min-height: 0; }
.panel.left { grid-area: left; }
.panel.right { grid-area: right; }
.panel section { padding: 12px; border-bottom: 1px solid var(--border); }
.panel h2 { margin: 0 0 10px; font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.badge { background: var(--panel-alt); border: 1px solid var(--border); border-radius: 10px; padding: 0 7px; color: var(--text); font-size: 11px; }
.empty { color: var(--text-muted); margin: 6px 0; line-height: 1.5; }
.hint { color: var(--text-muted); font-size: 12px; line-height: 1.45; margin: 8px 0 0; }
.btn-row { display: flex; gap: 6px; flex-wrap: wrap; }
.btn-row > button { flex: 1; }
.btn-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }

.tabs { display: flex; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--panel); z-index: 2; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.tabs button { flex: 1; border: none; border-radius: 0; border-bottom: 2px solid transparent; padding: 10px 6px; color: var(--text-muted); background: none; }
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); background: none; }
.tab-page { display: flex; flex-direction: column; }

/* Kütüphane */
.lib-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.lib-item {
  position: relative; display: flex; flex-direction: column; align-items: stretch; gap: 4px; padding: 6px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); cursor: pointer; text-align: left; white-space: normal;
}
.lib-item:hover { border-color: var(--accent-border); background: var(--accent-soft); }
.lib-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: var(--panel-alt); border-radius: calc(var(--radius) - 2px); }
.lib-item .lib-name { font-size: 12px; font-weight: 600; line-height: 1.25; }
.lib-item .lib-dims { font-size: 11px; color: var(--text-muted); }
.lib-item .lib-actions { position: absolute; top: 4px; right: 4px; display: flex; gap: 2px; }
.lib-item .lib-actions button { padding: 1px 6px; font-size: 11px; background: var(--overlay-bg); }

/* Listeler */
.item-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 3px; }
.item-list li { display: flex; align-items: center; gap: 8px; padding: 5px 8px; border: 1px solid transparent; border-radius: var(--radius); cursor: pointer; }
.item-list li:hover { background: var(--panel-alt); }
.item-list li.selected { background: var(--accent-soft); border-color: var(--accent-border); }
.swatch { width: 14px; height: 14px; border-radius: 3px; border: 1px solid rgba(0,0,0,.2); flex: none; }
.item-meta { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.item-meta strong { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item-meta small { color: var(--text-muted); }
.icon-btn { padding: 2px 7px; border-color: transparent; background: transparent; color: var(--text-muted); font-size: 15px; line-height: 1; }
.icon-btn:hover:not(:disabled) { color: var(--danger); background: var(--danger-bg); border-color: transparent; }

/* Alanlar */
.field { display: grid; grid-template-columns: 96px 1fr; align-items: center; gap: 3px 8px; margin-bottom: 7px; }
.field > span { color: var(--text-muted); }
.field input, .field select { width: 100%; }
.field small { grid-column: 2; font-size: 11px; color: var(--text-muted); }
.field small.error { color: var(--danger); }
.field.check { grid-template-columns: 96px auto; }
.inline { display: flex; gap: 6px; align-items: center; }
.inline > * { flex: 1; }
.inline > button { flex: none; }
.color-row { display: flex; gap: 6px; }
.color-row input[type="color"] { width: 40px; height: 30px; padding: 2px; flex: none; cursor: pointer; }
.color-row input[type="text"] { flex: 1; text-transform: uppercase; font-family: var(--font-mono); }
.info-grid { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; }
.info-grid span { color: var(--text-muted); }
.info-grid strong { font-weight: 600; text-align: right; overflow-wrap: anywhere; }
.readonly { background: var(--panel-alt); color: var(--text-muted); }
.prop-title { width: 100%; font-weight: 600; font-size: 14px; border-color: transparent; padding-left: 4px; }
.prop-title:hover { border-color: var(--border); }

/* --- Görünüm alanı --- */
#viewport { grid-area: viewport; position: relative; overflow: hidden; min-width: 0; min-height: 0; background: var(--panel-alt); }
#viewport canvas { display: block; width: 100%; height: 100%; touch-action: none; outline: none; }
#viewport.dragging canvas { cursor: grabbing; }
#viewport.tool-mode canvas { cursor: crosshair; }
.label-layer { position: absolute; inset: 0; pointer-events: none; }
.dim-label {
  background: rgba(255,255,255,.92); border: 1px solid #c7ccd3; border-radius: 4px; padding: 1px 6px;
  font-size: 11px; font-weight: 600; color: #333; white-space: nowrap;
}
.dim-label.live { background: var(--accent); color: #fff; border-color: var(--accent); }
.dim-label.live:empty, .dim-label.calib:empty { display: none; }
.dim-label.calib { background: var(--danger); color: #fff; border-color: var(--danger); }
.viewport-overlay { position: absolute; pointer-events: none; }
.view-controls { top: 10px; right: 10px; display: flex; gap: 4px; pointer-events: auto; }
.view-controls button { background: var(--overlay-bg); box-shadow: var(--shadow-float); padding: 6px 11px; }
.viewport-hint {
  bottom: 10px; left: 10px; right: 10px; background: var(--overlay-bg); border-radius: var(--radius);
  padding: 5px 10px; color: var(--text-muted); font-size: 12px; width: fit-content; max-width: calc(100% - 20px);
}
.mode-banner {
  top: 10px; left: 50%; transform: translateX(-50%); background: var(--accent); color: var(--accent-text); border-radius: 20px;
  padding: 6px 14px; font-weight: 600; pointer-events: auto; display: flex; gap: 10px; align-items: center; box-shadow: var(--shadow-float);
}
.mode-banner button { background: rgba(255,255,255,.18); color: #fff; border-color: rgba(255,255,255,.4); padding: 2px 10px; }
.viewport-empty {
  top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center;
  background: var(--overlay-bg); border-radius: var(--radius-lg); padding: 16px 24px; color: var(--text-muted);
  box-shadow: var(--shadow-float); max-width: 420px; line-height: 1.5;
}
.viewport-empty strong { display: block; color: var(--text); font-size: 15px; margin-bottom: 4px; }

/* --- Durum çubuğu --- */
.statusbar {
  grid-area: status; display: flex; align-items: center; gap: 18px; padding: 0 12px;
  background: var(--status-bg); color: var(--status-text); font-size: 12px; white-space: nowrap; overflow: hidden;
}
.statusbar b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }

/* --- Modal --- */
.modal { position: fixed; inset: 0; background: rgba(20,24,30,.55); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.modal-card { background: var(--panel); color: var(--text); border-radius: var(--radius-lg); width: min(960px, 100%); max-height: 100%; display: flex; flex-direction: column; box-shadow: 0 12px 40px rgba(0,0,0,.25); }
.modal-card.narrow { width: min(460px, 100%); }
.modal-card.medium { width: min(720px, 100%); }
.modal-card > header { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.modal-card > header h3 { margin: 0; font-size: 16px; font-family: var(--font-display); }
.modal-body { padding: 16px; overflow: auto; }
.modal-body img.preview, .modal-body canvas.pt-canvas { display: block; width: 100%; height: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel-alt); }
.modal-body p { line-height: 1.5; }
.modal-card > footer { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.modal-card > footer .left { margin-right: auto; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-section { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 12px; margin-bottom: 12px; }
.form-section h4 { margin: 0 0 10px; font-size: 13px; }
.status-line { color: var(--text-muted); font-size: 12px; min-height: 18px; margin: 8px 0 0; }
.status-line.error { color: var(--danger); }
.progress { height: 6px; background: var(--panel-alt); border-radius: 3px; overflow: hidden; margin-top: 8px; }
.progress > div { height: 100%; width: 0; background: var(--accent); transition: width .2s; }
.render-stage { position: relative; background: var(--panel-alt); border-radius: var(--radius); min-height: 200px; display: flex; align-items: center; justify-content: center; color: var(--text-muted); }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.compare figure { margin: 0; }
.compare figcaption { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.layer-list { max-height: 160px; overflow: auto; border: 1px solid var(--border); border-radius: var(--radius); padding: 6px 8px; }
.layer-list label { display: flex; gap: 6px; align-items: center; padding: 2px 0; }

/* --- Bildirimler --- */
#toast-container { position: fixed; top: calc(var(--toolbar-h) + 10px); left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: 6px; z-index: 60; pointer-events: none; }
.toast { background: #1f2328; color: #fff; padding: 8px 14px; border-radius: var(--radius); box-shadow: 0 4px 14px rgba(0,0,0,.2); max-width: 560px; animation: toast-in .15s ease-out; }
.toast.error { background: var(--danger); }
.toast.success { background: var(--success); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* --- Çalışma üçgeni --- */
.badge.ok { background: var(--success-bg); border-color: color-mix(in srgb, var(--success) 40%, transparent); color: var(--success); }
.badge.warn { background: var(--warn-bg); border-color: color-mix(in srgb, var(--warn-text) 35%, transparent); color: var(--warn-text); }
.badge.incomplete { color: var(--text-muted); }
.triangle-legs { list-style: none; margin: 0 0 6px; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.triangle-legs li { display: flex; justify-content: space-between; padding: 3px 8px; border-radius: var(--radius); background: var(--panel-alt); }
.triangle-legs li.ok strong { color: var(--success); }
.triangle-legs li.warn strong { color: var(--warn-text); }
.triangle-check { margin: 6px 0 0; padding: 6px 8px; border-radius: var(--radius); font-size: 12px; line-height: 1.45; background: var(--panel-alt); }
.triangle-check.warn { background: var(--warn-bg); color: var(--warn-text); }
.triangle-check.ok { background: var(--success-bg); color: var(--success); }
.dim-label.triangle.ok { background: var(--success); border-color: var(--success); color: #fff; }
.dim-label.triangle.warn { background: #d97706; border-color: #d97706; color: #fff; }

/* --- Durum çubuğu fiyat bağlantısı --- */
.status-link { border: none; background: none; padding: 2px 6px; color: var(--text-muted); font-size: 12px; }
.status-link:hover:not(:disabled) { background: var(--accent-soft); color: var(--accent); }
.status-link b { color: var(--success); }

/* --- Metraj ve teklif --- */
.quote-dialog textarea { width: 100%; resize: vertical; font: inherit; }
.inner-tabs { position: static; margin: 4px 0 12px; }
.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; margin-bottom: 12px; }
.kpi { border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 10px; background: var(--panel-alt); }
.kpi span { display: block; color: var(--text-muted); font-size: 11px; }
.kpi strong { font-size: 15px; }
.data-table { width: 100%; border-collapse: collapse; font-size: 12px; margin-bottom: 10px; }
.data-table th, .data-table td { text-align: left; padding: 5px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.data-table th { background: var(--panel-alt); font-weight: 600; position: sticky; top: 0; }
.data-table .num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.data-table .group-row td { background: var(--accent-soft); font-weight: 600; }
.data-table.totals { width: min(440px, 100%); margin-left: auto; }
.data-table.totals thead { display: none; }
.data-table .sum-row td { font-weight: 600; }
.data-table .grand-row td { font-weight: 700; font-size: 14px; border-top: 2px solid var(--text); color: var(--success); }
.data-table.cut td:last-child { color: var(--text-muted); max-width: 240px; }
.pricing-form .field { grid-template-columns: 150px 1fr; }
.pricing-form .unit { flex: none; min-width: 64px; color: var(--text-muted); }

/* --- Render penceresi --- */
.render-dialog .inline.wrap { flex-wrap: wrap; }
.render-dialog .inline input[type="range"] { flex: 1 1 120px; min-width: 100px; }
.render-dialog .inline input[type="number"] { flex: 0 1 120px; }
.render-dialog .inline > select { flex: 0 1 auto; }
.render-dialog .inline small.hint { margin: 0; flex: 1 1 200px; }
.muted { color: var(--text-muted); flex: none !important; }
.check-inline { display: inline-flex; align-items: center; gap: 6px; flex: none !important; white-space: nowrap; cursor: pointer; }
.field.wide { grid-template-columns: 1fr; }
.field.wide textarea { width: 100%; resize: vertical; font: inherit; }
.style-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 6px; margin-bottom: 10px; }
.style-chip { display: flex; flex-direction: column; align-items: flex-start; gap: 1px; text-align: left; white-space: normal; padding: 6px 9px; }
.style-chip small { color: var(--text-muted); font-size: 11px; line-height: 1.3; }
.style-chip.active { background: var(--accent-soft); border-color: var(--accent-border); }
.style-chip.active strong { color: var(--accent); }
.cmp { margin-top: 10px; }
.cmp-box { position: relative; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; cursor: ew-resize; user-select: none; touch-action: none; background: var(--panel-alt); }
.cmp-box img { display: block; width: 100%; height: auto; }
.cmp-box img.before { position: absolute; inset: 0; height: 100%; object-fit: cover; }
.cmp-handle { position: absolute; top: 0; bottom: 0; width: 2px; background: #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.25); transform: translateX(-1px); pointer-events: none; }
.cmp-handle::after { content: '↔'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 28px; height: 28px; border-radius: 50%; background: #fff; color: #333; display: grid; place-items: center; font-size: 13px; box-shadow: 0 1px 4px rgba(0,0,0,.3); }
.cmp-tag { position: absolute; top: 8px; background: rgba(20,24,30,.7); color: #fff; font-size: 11px; padding: 2px 7px; border-radius: 4px; pointer-events: none; }
.cmp-tag.left { left: 8px; }
.cmp-tag.right { right: 8px; background: var(--accent); }
.cmp input[type="range"] { width: 100%; margin-top: 6px; }
.gallery { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.gallery .thumb { padding: 3px; display: flex; flex-direction: column; gap: 2px; width: 150px; }
.gallery .thumb img { width: 100%; border-radius: 4px; display: block; }
.gallery .thumb small { color: var(--text-muted); font-size: 11px; }
.gallery .thumb.active { border-color: var(--accent); background: var(--accent-soft); }

/* ======================================================================
 * Temalar (Ayarlar > Görünüm). A · Atölye varsayılandır (:root).
 * ==================================================================== */

/* --- B · Gece Stüdyosu: koyu, kompakt, bitişik paneller --- */
html[data-theme="gece"] {
  color-scheme: dark;
  --bg: #0f1114; --panel: #171a1f; --panel-alt: #1f2329; --input-bg: #111317;
  --border: #2a2f37; --border-strong: #3b424c; --text: #e6e8eb; --text-muted: #9aa3af;
  --accent: #f5a524; --accent-hover: #ffb84a; --accent-soft: rgba(245, 165, 36, .14); --accent-border: rgba(245, 165, 36, .5); --accent-text: #1a1300;
  --danger: #f87171; --danger-bg: rgba(248, 113, 113, .12); --success: #4ade80; --success-bg: rgba(74, 222, 128, .12);
  --warn-text: #fbbf24; --warn-bg: rgba(251, 191, 36, .12);
  --overlay-bg: rgba(23, 26, 31, .94); --shadow: none; --shadow-float: 0 8px 24px rgba(0, 0, 0, .5);
  --radius: 6px; --radius-lg: 0px; --gap: 0px;
  --font: "IBM Plex Sans", system-ui, sans-serif; --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}
html[data-theme="gece"] .toolbar, html[data-theme="gece"] .panel, html[data-theme="gece"] #viewport, html[data-theme="gece"] .statusbar { border: none; box-shadow: none; }
html[data-theme="gece"] .toolbar { border-bottom: 1px solid var(--border); }
html[data-theme="gece"] .panel.left { border-right: 1px solid var(--border); }
html[data-theme="gece"] .panel.right { border-left: 1px solid var(--border); }
html[data-theme="gece"] .statusbar { border-top: 1px solid var(--border); background: #13161a; }
html[data-theme="gece"] input[type="number"], html[data-theme="gece"] .statusbar b, html[data-theme="gece"] .kpi strong, html[data-theme="gece"] .data-table .num { font-family: var(--font-mono); }
html[data-theme="gece"] .modal { background: rgba(0, 0, 0, .65); }

/* --- C · Showroom: sıcak, yumuşak, büyük dokunma alanları --- */
html[data-theme="showroom"] {
  --bg: #f6f1ea; --panel: #fffdf9; --panel-alt: #f3ece3; --input-bg: #fffdf9;
  --border: #e4dacd; --border-strong: #cdbfae; --text: #2a211b; --text-muted: #6e6259;
  --accent: #a85a2a; --accent-hover: #8f4a20; --accent-soft: #f6e9df; --accent-border: #dcb59a;
  --success: #3f7a3a; --success-bg: #eef5ea; --warn-text: #8a5300; --warn-bg: #fbf0dc;
  --overlay-bg: rgba(255, 253, 249, .95); --shadow: 0 2px 10px rgba(42, 33, 27, .06); --shadow-float: 0 10px 30px rgba(42, 33, 27, .14);
  --radius: 12px; --radius-lg: 22px; --gap: 16px; --toolbar-h: 60px; --status-h: 36px;
  --font: Inter, system-ui, sans-serif; --font-display: Fraunces, Georgia, serif;
}
html[data-theme="showroom"] .toolbar, html[data-theme="showroom"] .panel, html[data-theme="showroom"] .statusbar { border-color: transparent; }
html[data-theme="showroom"] button { border-radius: 999px; padding: 7px 16px; }
html[data-theme="showroom"] .tabs button { border-radius: 0; }
html[data-theme="showroom"] .brand { font-size: 20px; font-weight: 600; }
html[data-theme="showroom"] .lib-item { border-radius: 16px; }
html[data-theme="showroom"] .statusbar { border-radius: 999px; }

/* --- D · Teknik Masa: keskin köşeler, eş aralıklı rakamlar, lacivert durum satırı --- */
html[data-theme="teknik"] {
  --bg: #e9eef5; --panel: #ffffff; --panel-alt: #f3f6fa; --input-bg: #ffffff;
  --border: #d3dbe6; --border-strong: #a9b8cc; --text: #0b1b33; --text-muted: #4a5a70;
  --accent: #1d4ed8; --accent-hover: #1e40af; --accent-soft: #e8eef9; --accent-border: #9fb4dc;
  --success: #15803d; --success-bg: #ecfdf3;
  --overlay-bg: rgba(255, 255, 255, .96); --shadow: none; --shadow-float: 0 1px 0 #c9d3e2;
  --status-bg: #0b1b33; --status-text: #c9d6ee;
  --radius: 2px; --radius-lg: 0px; --gap: 0px; --toolbar-h: 48px; --status-h: 28px;
  --font: "IBM Plex Sans Condensed", "Arial Narrow", system-ui, sans-serif; --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}
html[data-theme="teknik"] .toolbar, html[data-theme="teknik"] .panel, html[data-theme="teknik"] #viewport, html[data-theme="teknik"] .statusbar { border: none; box-shadow: none; }
html[data-theme="teknik"] .toolbar { border-bottom: 1px solid var(--border-strong); background: #f3f6fa; }
html[data-theme="teknik"] .panel.left { border-right: 1px solid var(--border-strong); }
html[data-theme="teknik"] .panel.right { border-left: 1px solid var(--border-strong); }
html[data-theme="teknik"] .statusbar, html[data-theme="teknik"] .statusbar b, html[data-theme="teknik"] input[type="number"],
html[data-theme="teknik"] .panel h2, html[data-theme="teknik"] .data-table .num, html[data-theme="teknik"] .kpi strong { font-family: var(--font-mono); }
html[data-theme="teknik"] .statusbar b { color: #ffffff; }
html[data-theme="teknik"] .status-link { color: var(--status-text); }
html[data-theme="teknik"] .status-link b { color: #86efac; }
html[data-theme="teknik"] .brand span { font-family: var(--font-mono); }

/* --- E · Odak: 3D tam ekran, paneller üzerinde yüzer --- */
html[data-theme="odak"] {
  --bg: #e7e9ec; --panel: #ffffff; --panel-alt: #f4f6f8;
  --border: #e2e8f0; --border-strong: #cbd5e1; --text: #0f172a; --text-muted: #475569;
  --accent: #0f766e; --accent-hover: #115e59; --accent-soft: #e6f4f1; --accent-border: #8fcfc4;
  --success: #047857; --success-bg: #ecfdf5;
  --overlay-bg: rgba(255, 255, 255, .96); --shadow-float: 0 10px 30px rgba(15, 23, 42, .16), 0 1px 2px rgba(15, 23, 42, .06);
  --radius: 12px; --radius-lg: 18px; --gap: 12px; --toolbar-h: 58px; --status-h: 36px;
  --font: Manrope, system-ui, sans-serif;
}
html[data-theme="odak"] #app { display: block; position: relative; padding: 0; }
/* isolation: 3D ölçü etiketlerinin (CSS2D, yüksek z-index) yüzen panellerin üstüne çıkmasını önler */
html[data-theme="odak"] #viewport { position: absolute; inset: 0; border: none; border-radius: 0; box-shadow: none; z-index: 0; isolation: isolate; }
html[data-theme="odak"] .toolbar, html[data-theme="odak"] .panel, html[data-theme="odak"] .statusbar { position: absolute; z-index: 5; border: none; box-shadow: var(--shadow-float); }
html[data-theme="odak"] .toolbar { top: var(--gap); left: var(--gap); right: var(--gap); height: var(--toolbar-h); }
html[data-theme="odak"] .panel.left { top: calc(var(--toolbar-h) + 2 * var(--gap)); left: var(--gap); bottom: calc(var(--status-h) + 2 * var(--gap)); width: var(--left-w); }
html[data-theme="odak"] .panel.right { top: calc(var(--toolbar-h) + 2 * var(--gap)); right: var(--gap); width: var(--right-w); max-height: calc(100% - var(--toolbar-h) - var(--status-h) - 4 * var(--gap)); }
html[data-theme="odak"] .statusbar { bottom: var(--gap); left: 50%; transform: translateX(-50%); height: var(--status-h); border-radius: 999px; max-width: calc(100% - 2 * var(--gap)); }
html[data-theme="odak"] .statusbar .spacer { flex: 0 0 8px; }
html[data-theme="odak"] .view-controls { top: calc(var(--toolbar-h) + 2 * var(--gap)); right: calc(var(--right-w) + 2 * var(--gap)); }
html[data-theme="odak"] .mode-banner { top: calc(var(--toolbar-h) + 2 * var(--gap)); }
html[data-theme="odak"] .viewport-hint { left: calc(var(--left-w) + 2 * var(--gap)); bottom: calc(var(--status-h) + 2 * var(--gap)); right: auto; max-width: calc(100% - var(--left-w) - var(--right-w) - 4 * var(--gap)); }
html[data-theme="odak"] #toast-container { top: calc(var(--toolbar-h) + 2 * var(--gap)); }
html[data-theme="odak"] .toolbar button, html[data-theme="odak"] .view-controls button { min-height: 40px; }

/* --- Ayarlar > Görünüm: tema kartları --- */
.theme-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 8px; }
.theme-card { display: flex; flex-direction: column; align-items: stretch; gap: 6px; text-align: left; white-space: normal; padding: 10px; }
.theme-card.active { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 1px var(--accent); }
.theme-card .theme-swatches { display: flex; gap: 4px; }
.theme-card .theme-swatches span { flex: 1; height: 18px; border-radius: 4px; border: 1px solid rgba(0, 0, 0, .12); }
.theme-card strong { font-size: 13px; }
.theme-card small { color: var(--text-muted); font-size: 11px; line-height: 1.35; }