/* Card Studio UI: diegonmtz design system (studio chrome only; cards follow CARD-SPEC.md). */

/* Card fonts (Design Leaders) */
@font-face { font-family: "Inter Tight"; font-weight: 700; font-display: block; src: url(fonts/inter-tight-700-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Inter Tight"; font-weight: 700; font-display: block; src: url(fonts/inter-tight-700-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Inter"; font-weight: 100 900; font-display: block; src: url(fonts/inter-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Inter"; font-weight: 100 900; font-display: block; src: url(fonts/inter-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
/* Studio fonts (diegonmtz) */
@font-face { font-family: "Space Mono"; font-weight: 400; font-display: swap; src: url(fonts/SpaceMono-Regular.ttf) format("truetype"); }
@font-face { font-family: "Space Mono"; font-weight: 700; font-display: swap; src: url(fonts/SpaceMono-Bold.ttf) format("truetype"); }

/* Layout: editorial shell with side rules; form column | stage, divided by a 1px line. */
:root {
  color-scheme: light;
  --primary: #000000;
  --bg: #ffffff;
  --surface: #f4f4f4;
  --muted: #2f2f2f;
  --accent: #ff0088;
  --line: #000000;
  --font-display: "Cinzel Decorative", serif;
  --font-body: "Cormorant Garamond", Georgia, serif;
  --font-ui: "Space Mono", ui-monospace, monospace;
  --text-label: 0.68rem;
  --space-2: 0.5rem; --space-3: 0.95rem; --space-4: 1.1rem; --space-5: 1.6rem; --space-6: 2.8rem;
  --t-ui: 140ms linear;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--primary); font: 1.14rem/1.5 var(--font-body); -webkit-font-smoothing: antialiased; }
.shell { width: min(1440px, 100%); margin: 0 auto; border-left: 1px solid var(--line); border-right: 1px solid var(--line); min-height: 100vh; }
@media (max-width: 1480px) { .shell { border-left: 0; border-right: 0; } }

.eyebrow { font: 400 var(--text-label)/1.4 var(--font-ui); text-transform: uppercase; letter-spacing: 0.12em; margin: 0; }

.top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: var(--space-4); padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--line); }
.brandline { display: flex; align-items: center; gap: var(--space-4); min-width: 0; }
.brand { height: 20px; width: auto; filter: invert(1); }
.title { font: 400 clamp(1.6rem, 3vw, 2.2rem)/1.08 var(--font-display); letter-spacing: 0.02em; margin: 0; text-align: center; }
.spec { justify-self: end; text-align: right; }
@media (max-width: 760px) { .top { grid-template-columns: 1fr; text-align: left; padding: var(--space-5); } .title { text-align: left; } .spec { justify-self: start; text-align: left; } }

.app { display: grid; grid-template-columns: minmax(340px, 460px) minmax(0, 1fr); }
@media (max-width: 960px) { .app { grid-template-columns: 1fr; } .stage { order: -1; border-bottom: 1px solid var(--line); } .panel { border-right: 0 !important; } }

.panel { border-right: 1px solid var(--line); min-width: 0; }
.step { padding: var(--space-5) var(--space-6) var(--space-6); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: var(--space-4); min-width: 0; }
@media (max-width: 760px) { .step { padding: var(--space-5); } }
.step:last-child { border-bottom: 0; }

.field { display: flex; flex-direction: column; gap: var(--space-2); min-width: 0; }
.field-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); align-items: end; }
.row > * { min-width: 0; }

input[type=text], textarea, select {
  width: 100%; border: 1px solid var(--line); border-radius: 0; background: var(--bg); color: var(--primary);
  padding: 0.6rem 0.75rem; font: 1.14rem/1.4 var(--font-body);
}
select { font: var(--text-label)/1.4 var(--font-ui); text-transform: uppercase; letter-spacing: 0.08em; padding: 0.75rem; }
textarea { resize: vertical; }
input[type=range] { width: 100%; accent-color: var(--primary); }
:focus-visible, .sections label:has(input:focus-visible), .seg label:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.help { margin: 0; color: var(--muted); font: 1.02rem/1.45 var(--font-body); }
.help em { font-style: italic; }
.note { padding-left: var(--space-3); border-left: 1px solid var(--line); font-style: italic; }

/* Section picker: bordered tiles, selected = inverted */
.sections { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.sections label { display: flex; align-items: center; gap: 0.7rem; padding: 0.85rem 0.9rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); cursor: pointer; transition: background var(--t-ui), color var(--t-ui); }
.sections label span { font: 400 var(--text-label)/1.3 var(--font-ui); text-transform: uppercase; letter-spacing: 0.1em; }
.sections .dot { width: 12px; height: 12px; flex: none; outline: 1px solid var(--line); }
.sections input, .seg input { position: absolute; opacity: 0; pointer-events: none; }
.sections label:hover { background: var(--surface); }
.sections label:has(input:checked) { background: var(--primary); color: var(--bg); }
.sections label:has(input:checked) .dot { outline-color: var(--bg); }

.seg { display: flex; border: 1px solid var(--line); width: fit-content; max-width: 100%; }
.seg label { cursor: pointer; transition: background var(--t-ui), color var(--t-ui); }
.seg label + label { border-left: 1px solid var(--line); }
.seg span { display: block; padding: 0.55rem 0.85rem; font: 400 var(--text-label)/1.3 var(--font-ui); text-transform: uppercase; letter-spacing: 0.1em; }
.seg.small span { padding: 0.35rem 0.6rem; font-size: 0.6rem; }
.seg label:has(input:checked) { background: var(--primary); color: var(--bg); }

/* Buttons */
.btn, .btn-muted { font: 400 var(--text-label)/1 var(--font-ui); text-transform: uppercase; letter-spacing: 0.12em; padding: 0.95rem 1.4rem; border: 1px solid var(--line); border-radius: 0; cursor: pointer; transition: background var(--t-ui), color var(--t-ui); }
.btn { background: var(--primary); color: var(--bg); }
.btn:hover:not(:disabled) { background: var(--bg); color: var(--primary); }
.btn-muted { background: transparent; color: var(--primary); }
.btn-muted:hover:not(:disabled) { background: var(--primary); color: var(--bg); }
.btn:disabled, .btn-muted:disabled { cursor: not-allowed; border-color: #b8b8b8; background: var(--surface); color: #8a8a8a; }
.btn-text { background: none; border: 0; padding: 0; cursor: pointer; font: 400 0.62rem/1.4 var(--font-ui); text-transform: uppercase; letter-spacing: 0.12em; color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.btn-text:hover { color: var(--accent); }

details.advanced { border-top: 1px solid var(--line); padding-top: var(--space-3); }
details.advanced summary { cursor: pointer; list-style: none; }
details.advanced summary::-webkit-details-marker { display: none; }
details.advanced summary::before { content: "+ "; }
details.advanced[open] summary::before { content: "– "; }
details.advanced[open] summary { margin-bottom: var(--space-4); }

/* Photo grid */
.photos { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
@media (max-width: 420px) { .photos { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.photo { position: relative; aspect-ratio: 560 / 1200; width: 100%; padding: 0; border: 1px solid var(--line); background: var(--surface); cursor: pointer; overflow: hidden; }
.photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo[aria-pressed="true"] { outline: 3px solid var(--accent); outline-offset: 1px; }
.photo .tag { position: absolute; left: 4px; top: 4px; background: var(--primary); color: var(--bg); font: 400 0.5rem/1 var(--font-ui); letter-spacing: 0.1em; text-transform: uppercase; padding: 4px 5px; }
.photo .tag.low { top: auto; bottom: 4px; background: var(--bg); color: var(--primary); border: 1px solid var(--line); }
.photo.upload { display: flex; align-items: center; justify-content: center; text-align: center; background: var(--bg); border-style: dashed; font: 400 0.6rem/1.4 var(--font-ui); text-transform: uppercase; letter-spacing: 0.1em; padding: 6px; }
.photo.upload:hover { background: var(--surface); }
.photos.dragover .photo.upload { background: var(--primary); color: var(--bg); }
.photo-tools { align-items: end; }

/* Stage */
.stage { padding: var(--space-6); display: flex; flex-direction: column; align-items: center; gap: var(--space-4); min-width: 0; background: var(--surface); }
@media (min-width: 961px) {
  .stage { position: sticky; top: 0; align-self: start; height: 100vh; overflow-y: auto; justify-content: center; }
  .preview-wrap { width: min(100%, 760px, calc(100vh - 220px)); }
}
@media (max-width: 760px) { .stage { padding: var(--space-5); } }
.preview-wrap { width: min(100%, 760px); border: 1px solid var(--line); background: #000; }
#preview { display: block; width: 100%; height: auto; aspect-ratio: 1; cursor: grab; touch-action: none; }
#preview.dragging { cursor: grabbing; }
.status { width: min(100%, 760px); min-height: 1.5em; font: 400 var(--text-label)/1.6 var(--font-ui); text-transform: uppercase; letter-spacing: 0.08em; }
.status ul { margin: 0; padding-left: 1.1em; color: var(--accent); }
.status .ok::before { content: "● "; }
.actions { width: min(100%, 760px); display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }