/* ==========================================================================
   Ordstigen — Acrostic puzzle
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --color-bg:             #0a0806;
  --color-cell:           #f7f3ea;
  --color-cell-highlight: #e9c25a;   /* overridden per-puzzle via JS */
  --color-cell-border:    #1a1410;
  --color-cell-text:      #1a1410;
  --color-cell-highlight-text:      #1a1410;
  --color-correct:        #6fae5b;
  --color-incorrect:      #d05a4c;
  --color-accent:         #e9c25a;   /* overridden per-puzzle via JS */
  --color-muted:          #9a9080;
  --color-panel:          rgba(14, 11, 8, 0.82);
  --color-panel-border:   rgba(255, 255, 255, 0.09);
  --color-text:           #ede6d8;
  --color-input-bg:       rgba(0, 0, 0, 0.35);
  --btn-primary-text:     #1a1410;   /* updated dynamically for contrast */

  --font-display: 'Didot', 'Bodoni 72', 'Bodoni Moda', Georgia, serif;
  --font-body:    'Iowan Old Style', 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
  --font-mono:    'SF Mono', 'Menlo', 'Consolas', monospace;

  --cell-size:     38px;
  --radius-sm:     3px;
  --radius-md:     6px;
  --trans-fast:    0.15s ease;
  --trans-base:    0.25s ease;

  /* Replace the URL to point to your local image file */
  --bg-image: url('bg-bryggen.jpg');
}


/* ---------- Reset & base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  color: var(--color-text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  background:
    linear-gradient(
      to bottom,
      rgba(10, 8, 6, 0.42) 0%,
      rgba(10, 8, 6, 0.52) 50%,
      rgba(10, 8, 6, 0.62) 100%
    ),
    var(--bg-image) center center / cover no-repeat fixed,
    var(--color-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}


/* ---------- Layout ---------- */
.main {
  width: 100%;
  max-width: 900px;
  flex:1;
  padding: 24px 16px 80px;
}


/* ---------- Header ---------- */
.header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  padding: 0 4px;
}

.header__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 4vw, 32px);
  letter-spacing: 0.02em;
  margin: 0;
  color: var(--color-text);
}

.header__title-dot {
  color: var(--color-accent);
}

.header__toggle {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--color-panel-border);
  color: var(--color-muted);
  padding: 7px 14px;
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--trans-fast), border-color var(--trans-fast), background var(--trans-fast);
}

.header__toggle:hover {
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.12);
}


/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--color-panel-border);
  color: var(--color-text);
  padding: 12px 24px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--trans-fast), border-color var(--trans-fast), color var(--trans-fast);
  -webkit-tap-highlight-color: transparent;
}

.btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn:active:not(:disabled) {
  transform: scale(0.97);
}

.btn--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--btn-primary-text);
  font-weight: 600;
}

.btn--primary:hover:not(:disabled) {
  filter: brightness(1.08);
}

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

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


/* ---------- Grid (player) ---------- */
.grid-wrap {
  display: flex;
  justify-content: center;
  margin: 12px 0 28px;
}

.grid {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.row {
  display: flex;
  align-items: center;
  gap: 4px;
  position: relative;
}

.cell {
  width: var(--cell-size);
  height: var(--cell-size);
  background: var(--color-cell);
  border: 2px solid transparent;
  color: var(--color-cell-text);
  text-align: center;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: calc(var(--cell-size) * 0.52);
  text-transform: uppercase;
  padding: 0;
  margin: 0;
  outline: none;
  caret-color: transparent;
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
  transition:
    background-color var(--trans-base),
    color var(--trans-base),
    transform var(--trans-fast),
    box-shadow var(--trans-fast);
}

.cell--highlight {
  background: var(--color-cell-highlight);
  color: var(--color-cell-highlight-text)
}

.cell:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(233, 194, 90, 0.3);
  transform: scale(1.06);
  z-index: 1;
}

.cell--correct { 
  background: var(--color-correct);   
  color: #fff; 
}

.cell--incorrect { 
  background: var(--color-incorrect); 
  color: #fff; 
}

.cell--highlight.cell--correct { 
  background: var(--color-correct); 
}

.cell--highlight.cell--incorrect { 
  background: var(--color-incorrect); 
}

.gap {
  width: calc(var(--cell-size) * 0.55);
  height: var(--cell-size);
  flex-shrink: 0;
}


/* ---------- Hint marks ---------- */
.hint-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: calc(var(--cell-size) * 0.65);
  height: calc(var(--cell-size) * 0.65);
  margin-left: 6px;
  border: 1px solid var(--color-panel-border);
  border-radius: 50%;
  color: var(--color-muted);
  font-family: var(--font-display);
  font-style: italic;
  font-size: calc(var(--cell-size) * 0.38);
  cursor: help;
  background: rgba(255, 255, 255, 0.04);
  user-select: none;
  flex-shrink: 0;
  transition: color var(--trans-fast), 
  border-color var(--trans-fast), 
  background var(--trans-fast);
}

.hint-mark:hover,
.hint-mark--open {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(233, 194, 90, 0.1);
}

.hint-mark:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}


/* ---------- Tooltip ---------- */
.tooltip {
  position: absolute;
  background: var(--color-panel);
  border: 1px solid var(--color-accent);
  color: var(--color-text);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 14px;
  max-width: 280px;
  z-index: 100;
  pointer-events: none;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  line-height: 1.45;
  font-style: italic;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.tooltip::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-right: 7px solid var(--color-accent);
  border-left: 0;
}


/* ---------- Actions bar ---------- */
.actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 8px;
}


/* ---------- Celebration ---------- */
.celebration {
  text-align: center;
  margin-top: 36px;
  opacity: 0;
  transform: translateY(14px) scale(0.97);
  transition: opacity 0.45s ease, transform 0.45s ease;
  pointer-events: none;
  background: var(--color-panel);
  border: 1px solid var(--color-panel-border);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 28px 24px 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.celebration--show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.celebration__label {
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.celebration__word {
  font-family: var(--font-display);
  font-size: clamp(36px, 8vw, 64px);
  color: var(--color-accent);
  letter-spacing: 0.2em;
  line-height: 1;
}

@keyframes letterPop {
  0%   { opacity: 0; transform: scale(0.3) translateY(14px); }
  65%  { transform: scale(1.22) translateY(-5px); }
  85%  { transform: scale(0.94) translateY(0); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

.celebration__letter {
  display: inline-block;
  opacity: 0;
}

.celebration--show .celebration__letter {
  animation: letterPop 0.55s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}


/* ---------- Empty state ---------- */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-muted);
}

.empty-state p { 
  margin: 8px 0; 
}

.empty-state__heading {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--color-text);
  margin-bottom: 16px;
}


/* ---------- Editor shell ---------- */
.editor {
  background: var(--color-panel);
  border: 1px solid var(--color-panel-border);
  padding: 28px;
  border-radius: var(--radius-md);
  margin-top: 8px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.editor__title {
  font-family: var(--font-display);
  font-weight: 400;
  margin: 0 0 24px;
  font-size: 20px;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

.editor__actions {
  margin-top: 20px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--color-panel-border);
}


/* ---------- Form fields ---------- */
.field {
  margin-bottom: 22px;
}

.field__label {
  display: block;
  margin-bottom: 7px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.field__input {
  width: 100%;
  background: var(--color-input-bg);
  border: 1px solid var(--color-panel-border);
  color: var(--color-text);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 15px;
  border-radius: var(--radius-sm);
  transition: border-color var(--trans-fast);
}

.field__input:focus {
  outline: none;
  border-color: var(--color-accent);
}


/* ---------- Row editor ---------- */
.rows-editor {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.row-edit {
  display: grid;
  grid-template-columns: 30px 1fr 1.5fr auto;
  gap: 8px;
  align-items: center;
}

.row-edit__letter {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-cell-highlight);
  color: var(--color-cell-text);
  font-weight: 700;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  flex-shrink: 0;
}

.row-edit__input {
  background: var(--color-input-bg);
  border: 1px solid var(--color-panel-border);
  color: var(--color-text);
  padding: 8px 10px;
  font-family: inherit;
  font-size: 14px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  transition: border-color var(--trans-fast);
  min-width: 0;
}

.row-edit__input--hint {
  text-transform: none;
}

.row-edit__input--invalid {
  border-color: var(--color-incorrect);
}

.row-edit__input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.row-edit__remove {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-panel-border);
  color: var(--color-muted);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--trans-fast), border-color var(--trans-fast);
}

.row-edit__remove:hover {
  color: var(--color-incorrect);
  border-color: var(--color-incorrect);
}


/* ---------- Custom colour picker ---------- */
.cp-wrap {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cp-swatch {
  width: 42px;
  height: 32px;
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: border-color var(--trans-fast);
}

.cp-swatch:hover {
  border-color: rgba(255, 255, 255, 0.3);
}

.cp-swatch:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.cp-popover {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 200;
  background: var(--color-panel);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-md);
  padding: 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  width: 220px;
}

.cp-canvas-wrap {
  position: relative;
  width: 100%;
  height: 150px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: crosshair;
  margin-bottom: 10px;
}

.cp-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.cp-thumb {
  position: absolute;
  width: 12px;
  height: 12px;
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cp-hue-wrap {
  padding: 2px 0;
}

.cp-hue {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(to right,
    hsl(0,100%,50%), hsl(30,100%,50%), hsl(60,100%,50%),
    hsl(90,100%,50%), hsl(120,100%,50%), hsl(150,100%,50%),
    hsl(180,100%,50%), hsl(210,100%,50%), hsl(240,100%,50%),
    hsl(270,100%,50%), hsl(300,100%,50%), hsl(330,100%,50%),
    hsl(360,100%,50%));
  cursor: pointer;
  border: none;
  outline: none;
}

.cp-hue::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid rgba(0, 0, 0, 0.25);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
  cursor: pointer;
}

.cp-hue::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid rgba(0, 0, 0, 0.25);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
  cursor: pointer;
}

.color-picker-hex {
  background: var(--color-input-bg);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  width: 88px;
  transition: border-color var(--trans-fast);
}

.color-picker-hex:focus {
  outline: none;
  border-color: var(--color-accent);
}


/* ---------- Background picker ---------- */
.bg-picker {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.bg-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 0;
  background: none;
  border: 2px solid var(--color-panel-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  overflow: hidden;
  transition: border-color var(--trans-fast), box-shadow var(--trans-fast);
  width: 130px;
  -webkit-tap-highlight-color: transparent;
}

.bg-card:hover {
  border-color: rgba(255, 255, 255, 0.25);
}

.bg-card--selected {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.bg-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.bg-card__thumb {
  width: 100%;
  height: 80px;
  object-fit: cover;
  display: block;
  background: var(--color-input-bg); /* placeholder while loading */
}

.bg-card__label {
  font-size: 12px;
  color: var(--color-muted);
  padding: 4px 8px 8px;
  text-align: center;
  line-height: 1.3;
}

.bg-card--selected .bg-card__label {
  color: var(--color-accent);
}


/* ---------- Link output ---------- */
.link-output {
  margin-top: 14px;
  padding: 12px;
  background: var(--color-input-bg);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-sm);
  display: none;
  gap: 16px;
  align-items: center;
}

.link-output--visible {
  display: flex;
  flex-direction: column;
}

.link-output__url {
  flex: 1;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  word-break: break-all;
  line-height: 1.5;
}

.link-output__qr {
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  display: block;
  padding: 5px;
  background-color: #fff;
}

@media (max-width: 640px) {
  .link-output {
    flex-direction: column;
    align-items: stretch;
  }
  .link-output__qr {
    align-self: center;
  }
}


/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-accent);
  color: var(--btn-primary-text);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  z-index: 1000;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}


/* ---------- Photo credit ---------- */
footer {
  
  font-size: 11px;
  color: rgba(232, 223, 208, 0.5);
  letter-spacing: 0.04em;
  z-index: 2;
  text-align: center;
  padding: 5px 14px;
  background: rgba(10, 8, 6, 0.5);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  width: 100%;
  line-height: 1.5;
}

#photoCredit a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px dotted rgba(233, 194, 90, 0.3);
  transition: color var(--trans-fast), border-color var(--trans-fast);
}

.photo-credit a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}


/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  main {
    padding: 16px 10px 80px;
  }

  .row-edit {
    grid-template-columns: 30px 1fr auto;
  }

  .row-edit__input--hint {
    grid-column: 2 / 4;
  }

  .btn {
    padding: 10px 16px;
    font-size: 12px;
  }

  .bg-card {
    width: 110px;
  }

  .bg-card__thumb {
    height: 66px;
  }
}


/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}