/* =========================================================
   Living Portrait — Nordic Minimal UI
   ========================================================= */

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

:root {
  --bg:            #080B12;
  --text:          rgba(195, 212, 228, 0.65);
  --text-dim:      rgba(195, 212, 228, 0.28);
  --accent:        #4A7FA5;
  --accent-glow:   rgba(74, 127, 165, 0.35);
  --dot-active:    #7ABFA0;
  --dot-scanning:  #C4A45A;
  --dot-loading:   #4A7FA5;
  --dot-error:     #C47A65;
  --font:          'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono:     'SF Mono', 'Fira Code', 'Consolas', monospace;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

/* ── App container ───────────────────────────────────────── */

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
}

/* ── Canvas ──────────────────────────────────────────────── */

#canvas-container {
  position: absolute;
  inset: 0;
  z-index: 1;
}

#canvas-container canvas {
  display: block;
}

/* ── Hidden webcam ───────────────────────────────────────── */

#webcam {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
  z-index: 0;
}

/* ── UI Overlay ──────────────────────────────────────────── */

#ui-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 20;
}

/* Wordmark — top-left */
#wordmark {
  position: absolute;
  top: 28px;
  left: 32px;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* App nav links — beneath wordmark */
#app-nav {
  position: absolute;
  top: 50px;
  left: 32px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  pointer-events: all;
}

.nav-link {
  font-size: 8px;
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  opacity: 0.65;
  transition: opacity 0.2s, color 0.2s;
}

.nav-link:hover {
  opacity: 1;
  color: var(--text);
}

/* Status indicator — bottom-center */
#status {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 9px;
  font-family: var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}

#status-dot {
  flex-shrink: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: background 0.6s ease, box-shadow 0.6s ease;
}

#status-dot.active {
  background: var(--dot-active);
  box-shadow: 0 0 8px var(--dot-active);
  animation: dotPulse 2.2s ease-in-out infinite;
}

#status-dot.scanning {
  background: var(--dot-scanning);
  box-shadow: 0 0 6px var(--dot-scanning);
  animation: dotPulse 1.4s ease-in-out infinite;
}

#status-dot.loading {
  background: var(--dot-loading);
  box-shadow: 0 0 6px var(--accent-glow);
  animation: dotPulse 0.9s ease-in-out infinite;
}

#status-dot.error {
  background: var(--dot-error);
}

@keyframes dotPulse {
  0%, 100% { opacity: 1;   transform: scale(1);   }
  50%       { opacity: 0.4; transform: scale(0.75); }
}

/* Energy bar — top-right */
#energy-bar-wrap {
  position: absolute;
  top: 28px;
  right: 32px;
  width: 64px;
  height: 1px;
  background: rgba(195, 212, 228, 0.1);
  overflow: hidden;
}

#energy-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.15s ease, background 0.4s ease;
  box-shadow: 0 0 6px var(--accent-glow);
}

/* ── Painting picker (swap mode) ─────────────────────────── */

#painting-picker {
  position: absolute;
  bottom: 72px;               /* sits above the mode panel */
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 20;
  padding: 10px 14px;
  background: rgba(6, 9, 14, 0.82);
  border: 1px solid rgba(195, 212, 228, 0.1);
  border-radius: 4px;
  backdrop-filter: blur(10px);
  overflow-x: auto;
  max-width: calc(100vw - 32px);
  scrollbar-width: thin;
  scrollbar-color: rgba(74,127,165,0.3) transparent;
  pointer-events: all;
}

#painting-picker.hidden { display: none; }

.pick-thumb {
  flex-shrink: 0;
  width: 110px;               /* bigger thumbnails */
  cursor: pointer;
  border: 1px solid rgba(195, 212, 228, 0.1);
  border-radius: 3px;
  overflow: hidden;
  transition: border-color 0.25s, transform 0.2s;
}

.pick-thumb:hover          { border-color: rgba(74,127,165,0.4); transform: translateY(-2px); }
.pick-thumb.selected       { border-color: var(--accent); box-shadow: 0 0 10px rgba(74,127,165,0.3); }

.pick-thumb img {
  display: block;
  width: 100%;
  height: 130px;              /* taller crop */
  object-fit: cover;
  filter: brightness(0.82) saturate(0.88);
  transition: filter 0.25s;
}

.pick-thumb:hover img,
.pick-thumb.selected img   { filter: brightness(1) saturate(1); }

.pick-label {
  padding: 5px 7px;
  font-size: 8px;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  line-height: 1.4;
  background: rgba(6, 9, 14, 0.6);
}
.pick-label span { display: block; opacity: 0.5; font-size: 7px; margin-top: 1px; }

/* ── Snap bar (swap mode) ────────────────────────────────── */

#snap-bar {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 20;
  pointer-events: all;
}

#snap-bar.hidden { display: none; }

#retake-btn,
#snap-btn {
  padding: 7px 18px;
  border: 1px solid rgba(195, 212, 228, 0.2);
  border-radius: 2px;
  background: rgba(6, 9, 14, 0.7);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: border-color 0.2s, color 0.2s;
}
#retake-btn:hover,
#snap-btn:hover   { border-color: var(--accent); color: var(--text); }

/* ── Portrait mode button accent ────────────────────────── */
.mode-btn--swap.active { border-color: #C4785A; color: #C4785A; background: rgba(196,120,90,0.1); }


/* ── Mode panel ──────────────────────────────────────────── */

#mode-panel {
  position: absolute;
  bottom: 28px;
  right: 32px;
  display: flex;
  gap: 6px;
  z-index: 20;
  pointer-events: all;
}

.mode-btn {
  width: 32px;
  height: 32px;
  border: 1px solid rgba(195, 212, 228, 0.12);
  border-radius: 3px;
  background: rgba(8, 11, 18, 0.6);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
  backdrop-filter: blur(6px);
}

.mode-btn:hover {
  border-color: rgba(74, 127, 165, 0.45);
  color: var(--text);
}

.mode-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(74, 127, 165, 0.1);
}

.mode-btn svg { width: 100%; height: 100%; }

/* ── Debug panel ─────────────────────────────────────────── */

#debug-panel {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  background: rgba(6, 9, 14, 0.92);
  border: 1px solid rgba(74, 127, 165, 0.25);
  border-radius: 4px;
  padding: 14px 18px;
  min-width: 340px;
  backdrop-filter: blur(8px);
  pointer-events: none;
}

#debug-panel.hidden { display: none; }

.dbg-title {
  font-size: 9px;
  font-family: var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.dbg-title kbd {
  margin-left: 8px;
  font-size: 8px;
  padding: 1px 5px;
  border: 1px solid rgba(74,127,165,0.4);
  border-radius: 2px;
  color: var(--text-dim);
}

.dbg-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 3px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 9px;
  font-family: var(--font-mono);
}

.dbg-key {
  color: var(--text-dim);
  flex-shrink: 0;
}

.dbg-val {
  color: var(--text);
  text-align: right;
  word-break: break-all;
}

.dbg-val.ok  { color: var(--dot-active); }
.dbg-val.bad { color: var(--dot-error);  }

/* ── Loading Screen ──────────────────────────────────────── */

#loading-screen {
  position: absolute;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

#loading-screen.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loading-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* Rotating SVG ring */
.loading-ring {
  width: 60px;
  height: 60px;
  margin-bottom: 24px;
  animation: ringRotate 2s linear infinite;
}

.ring-arc {
  transform-origin: 30px 30px;
  animation: ringDash 2s ease-in-out infinite;
}

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

@keyframes ringDash {
  0%   { stroke-dasharray: 10 154; stroke-dashoffset: 0; }
  50%  { stroke-dasharray: 80 84; }
  100% { stroke-dasharray: 10 154; stroke-dashoffset: -164; }
}

.loading-title {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 8px;
}

.loading-sub {
  font-size: 9px;
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 28px;
}

.loading-progress {
  width: 100px;
  height: 1px;
  background: rgba(195, 212, 228, 0.1);
  overflow: hidden;
}

.loading-fill {
  height: 100%;
  background: var(--accent);
  animation: progressSlide 1.8s ease-in-out infinite;
}

@keyframes progressSlide {
  0%   { width: 0%;   margin-left: 0%; }
  45%  { width: 70%;  margin-left: 0%; }
  55%  { width: 70%;  margin-left: 30%; }
  100% { width: 0%;   margin-left: 100%; }
}