/* ======================================================================
   JoyAI · Image — Local Workbench
   Visual language borrowed from binnen5.nl: Cormorant Garamond + Inter,
   warm off-white surfaces, charcoal type, bronze accents, blue primary.
   ====================================================================== */

:root {
  --color-primary:        #2299dd;
  --color-primary-hover:  #1a7ab8;
  --color-bronze:         #a4835b;
  --color-bronze-light:   #c4a87b;
  --color-charcoal:       #060208;
  --color-dark:           #1c1b1b;
  --color-body:           #3a3a3a;
  --color-muted:          #6b6b6b;
  --color-border:         #e5e5e5;
  --color-surface:        #f8f7f5;
  --color-background:     #ffffff;
  --color-danger:         #b22222;

  --font-heading: "Cormorant Garamond", "Playfair Display", Georgia, serif;
  --font-body:    "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:    ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --track:    0.2em;
  --track-md: 0.12em;
  --ease:     cubic-bezier(0.25, 0.1, 0.25, 1);
  --dur:      300ms;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-surface);
  color: var(--color-body);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(0.875rem, 0.82rem + 0.2vw, 1rem);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection { background: var(--color-primary); color: #fff; }

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(6, 2, 8, 0.05);
  padding: 0.05em 0.35em;
}

.muted { color: var(--color-muted); }

/* ---------- Shell ------------------------------------------------------ */

.app-shell {
  max-width: 1480px;
  margin: 0 auto;
  padding: 2.5rem clamp(1.25rem, 2.5vw, 2.5rem) 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0.25rem;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.wordmark {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2.1rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--color-charcoal);
  line-height: 1;
}

.wordmark-accent {
  color: var(--color-bronze);
  font-style: italic;
  letter-spacing: 0.04em;
}

.brand-sub {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--color-bronze);
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ---------- Status pill ------------------------------------------------ */

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: var(--track);
  text-transform: uppercase;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--color-border);
  background: var(--color-background);
  color: var(--color-muted);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.status::before {
  content: "";
  width: 6px;
  height: 6px;
  background: currentColor;
  border-radius: 50%;
  opacity: 0.7;
}

.status-online { color: var(--color-primary); border-color: var(--color-primary); }
.status-error  { color: var(--color-danger);  border-color: var(--color-danger); }
.status-offline { color: var(--color-muted); }

.status-label {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--color-muted);
}

/* ---------- Layout ----------------------------------------------------- */

.layout {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(280px, 1fr) minmax(420px, 1.7fr) minmax(320px, 1fr);
  align-items: start;
}

/* ---------- Panels ----------------------------------------------------- */

.panel {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  padding: clamp(1.25rem, 1rem + 0.8vw, 1.85rem);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.panel:hover {
  border-color: rgba(164, 131, 91, 0.4);
}

.panel-header {
  margin-bottom: 1.5rem;
}

.section-num {
  display: block;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--color-bronze);
  margin-bottom: 0.55rem;
}

.section-title {
  font-family: var(--font-heading);
  font-weight: 300;
  font-size: clamp(1.5rem, 1.2rem + 0.7vw, 2rem);
  line-height: 1.1;
  color: var(--color-charcoal);
  margin: 0;
  letter-spacing: 0.01em;
}

.section-sub {
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 400;
  color: var(--color-muted);
  font-size: clamp(0.95rem, 0.9rem + 0.2vw, 1.05rem);
  margin: 0.45rem 0 0;
  line-height: 1.4;
}

/* Panel-specific */
.gpu-panel { /* full width */ }
.panel-chat { display: flex; flex-direction: column; }

/* ---------- GPU telemetry --------------------------------------------- */

.gpu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.gpu-card {
  border: 1px solid var(--color-border);
  padding: 1.1rem 1.2rem;
  background: var(--color-surface);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.gpu-card:hover {
  border-color: rgba(34, 153, 221, 0.5);
  transform: translateY(-2px);
}

.gpu-card strong {
  display: block;
  font-family: var(--font-body);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--color-bronze);
  margin-bottom: 0.75rem;
}

.gpu-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem 1rem;
}

.gpu-metrics > div {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--color-charcoal);
  line-height: 1.1;
}

.gpu-metrics span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.25rem;
}

/* ---------- Chat log & form ------------------------------------------- */

.chat-log {
  flex: 1;
  min-height: 10rem;
  max-height: 16rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 1rem 1.1rem;
  overflow: auto;
  margin-bottom: 1rem;
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 0.98rem;
  color: var(--color-muted);
  line-height: 1.55;
}

.chat-log p {
  margin: 0 0 0.4rem;
}

.chat-log p:last-child { margin-bottom: 0; }

.chat-form textarea,
.control textarea,
.control input[type="text"],
.control input[type="number"],
.control select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--color-charcoal);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  padding: 0.75rem 0.9rem;
  border-radius: 0;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
  appearance: none;
  -webkit-appearance: none;
}

.chat-form textarea,
.control textarea { resize: vertical; line-height: 1.5; }

.chat-form textarea::placeholder,
.control textarea::placeholder,
.control input::placeholder {
  color: rgba(107, 107, 107, 0.55);
  font-style: italic;
  font-family: var(--font-heading);
}

.chat-form textarea:focus,
.control textarea:focus,
.control input:focus,
.control select:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-background);
}

.control select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='none' stroke='%23060208' stroke-width='1' d='M1 1.5l5 5 5-5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.25rem;
  cursor: pointer;
}

.chat-actions {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  margin-top: 1rem;
}

/* ---------- Buttons ---------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: var(--track);
  text-transform: uppercase;
  padding: 0.9rem 1.6rem;
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-charcoal);
  cursor: pointer;
  border-radius: 0;
  transition:
    background var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn-secondary {
  background: var(--color-charcoal);
  color: #fff;
  border-color: var(--color-charcoal);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--color-dark);
  border-color: var(--color-dark);
}

.btn-outline {
  border-color: rgba(6, 2, 8, 0.28);
  color: var(--color-charcoal);
}
.btn-outline:hover:not(:disabled) {
  background: rgba(6, 2, 8, 0.04);
  border-color: var(--color-charcoal);
}

.btn-ghost {
  padding: 0.55rem 0.9rem;
  font-size: 0.65rem;
  letter-spacing: var(--track-md);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ---------- Image I/O -------------------------------------------------- */

.image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.image-card {
  border: 1px solid var(--color-border);
  padding: 1.1rem;
  background: var(--color-background);
  transition: border-color var(--dur) var(--ease);
}

.image-card:hover { border-color: rgba(164, 131, 91, 0.4); }

.card-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--color-border);
}

.card-heading h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--color-charcoal);
}

.image-card > h3 {
  margin: 0 0 0.85rem;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--color-charcoal);
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--color-border);
}

.upload-slot,
.output-slot {
  min-height: 280px;
  border: 1px dashed rgba(164, 131, 91, 0.4);
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.upload-slot {
  cursor: pointer;
}

.upload-slot:hover,
.upload-slot:focus-visible {
  border-color: var(--color-bronze);
  background: var(--color-background);
  outline: none;
}

.upload-slot.guide-active {
  border-style: solid;
  border-color: var(--color-primary);
  background: var(--color-background);
}

.input-stage {
  position: relative;
  display: inline-block;
  max-width: 100%;
  max-height: 100%;
}

.input-stage img {
  display: block;
  max-width: 100%;
  max-height: 260px;
  width: auto;
  height: auto;
}

.guide-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.guide-status {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: var(--track-md);
  text-transform: uppercase;
  color: var(--color-muted);
  text-align: right;
}

.placeholder {
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--color-muted);
  text-align: center;
  padding: 1.25rem;
  max-width: 22ch;
}

.output-slot img {
  width: 100%;
  height: 100%;
  max-height: 280px;
  object-fit: contain;
}

.image-actions {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.9rem;
}

.image-actions .btn {
  padding: 0.65rem 1rem;
  font-size: 0.65rem;
  letter-spacing: var(--track-md);
}

/* ---------- History ---------------------------------------------------- */

.history {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.history-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1rem;
}

.history-heading h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--color-charcoal);
}

.history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.9rem;
  color: var(--color-muted);
  font-family: var(--font-heading);
  font-style: italic;
}

.history-grid:not(:has(.history-item)) {
  padding: 1.25rem 0;
  font-size: 1rem;
}

.history-item {
  all: unset;
  border: 1px solid var(--color-border);
  background: var(--color-background);
  cursor: pointer;
  display: block;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.history-item:hover,
.history-item:focus-visible {
  border-color: var(--color-bronze);
  transform: translateY(-2px);
  outline: none;
}

.history-item img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  display: block;
}

.history-item p {
  margin: 0;
  padding: 0.5rem 0.6rem;
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.62rem;
  letter-spacing: var(--track-md);
  text-transform: uppercase;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-top: 1px solid var(--color-border);
}

/* ---------- Controls (right column) ----------------------------------- */

.control {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.control > span {
  font-family: var(--font-body);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--color-muted);
}

.control-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.control-row output {
  min-width: 3rem;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--color-charcoal);
  text-align: right;
  line-height: 1;
}

.control-row input[type="number"] { flex: 1; }

.tool-block {
  border: 1px solid var(--color-border);
  padding: 1.25rem;
  margin-bottom: 1.75rem;
  background: var(--color-surface);
}

.tool-block h3 {
  margin: 0 0 1rem;
  font-family: var(--font-heading);
  font-weight: 400;
  font-style: italic;
  font-size: 1.15rem;
  color: var(--color-charcoal);
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--color-border);
}

.help-text {
  margin: -0.25rem 0 1rem;
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 0.92rem;
  color: var(--color-muted);
  line-height: 1.45;
}

.prompt-preview {
  background: var(--color-background);
  color: var(--color-charcoal);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.5;
}

.checkbox {
  flex-direction: row !important;
  align-items: center;
  gap: 0.65rem;
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease);
}

.checkbox:hover { border-color: var(--color-bronze); }

.checkbox input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border: 1px solid var(--color-charcoal);
  background: var(--color-background);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}

.checkbox input[type="checkbox"]:checked {
  background: var(--color-charcoal);
}
.checkbox input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 0px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(45deg);
}

.checkbox > span {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: var(--track-md);
  text-transform: uppercase;
  color: var(--color-charcoal);
}

/* ---------- Range slider restyle -------------------------------------- */

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  width: 100%;
  height: 28px;
  flex: 1;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 1px;
  background: var(--color-charcoal);
  border: none;
}

input[type="range"]::-moz-range-track {
  height: 1px;
  background: var(--color-charcoal);
  border: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--color-bronze);
  margin-top: -7px;
  border-radius: 0;
  cursor: pointer;
  border: 0;
  transition:
    transform var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.3);
  background: var(--color-primary);
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--color-bronze);
  border: 0;
  border-radius: 0;
  cursor: pointer;
  transition:
    transform var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

input[type="range"]::-moz-range-thumb:hover {
  transform: scale(1.3);
  background: var(--color-primary);
}

input[type="range"]:focus-visible::-webkit-slider-thumb {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ---------- Footer ---------------------------------------------------- */

.app-foot {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
}

.foot-dot { color: var(--color-bronze); }

.foot-text {
  font-family: var(--font-body);
  font-size: 0.65rem;
  letter-spacing: var(--track-md);
  text-transform: uppercase;
}

/* ---------- Focus visibility ------------------------------------------ */

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Responsive ------------------------------------------------- */

@media (max-width: 1200px) {
  .layout {
    grid-template-columns: 1fr 1fr;
  }
  .panel-chat { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .app-shell { padding: 1.75rem 1.25rem 2rem; gap: 1.25rem; }
  .layout { grid-template-columns: 1fr; }
  .image-grid { grid-template-columns: 1fr; }
  .upload-slot, .output-slot { min-height: 220px; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .topbar-meta { align-self: stretch; justify-content: flex-start; }
  .card-heading { flex-direction: column; align-items: flex-start; }
  .gpu-grid { grid-template-columns: 1fr; }
}