/* ============================================================
   Citadel Paint Oracle — Styles
   Grimdark / Warhammer dark theme
   ============================================================ */

/* --- Custom Properties --- */
:root {
  --bg-void:        #0a0806;
  --bg-dark:        #100d0a;
  --bg-panel:       #161210;
  --bg-card:        #1c1714;
  --bg-card-hover:  #231f1b;

  --border-dim:     #2e2720;
  --border-gold:    #6b4f22;
  --border-bright:  #c9a84c;

  --gold-bright:    #d4aa50;
  --gold-mid:       #a07830;
  --gold-dark:      #5a3e12;

  --red-blood:      #7a1a1a;
  --red-accent:     #b02020;

  --text-parchment: #d8c9a8;
  --text-dim:       #7a6d58;
  --text-muted:     #4a4035;
  --text-white:     #f0e8d8;

  --shadow-deep:    0 8px 40px rgba(0,0,0,0.85);
  --shadow-card:    0 4px 20px rgba(0,0,0,0.7);
  --shadow-gold:    0 0 20px rgba(180,130,40,0.25);

  --radius-sm:      4px;
  --radius-md:      8px;
  --radius-lg:      12px;

  --font-display:   'Cinzel Decorative', serif;
  --font-heading:   'Cinzel', serif;
  --font-body:      'Crimson Text', Georgia, serif;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background-color: var(--bg-void);
  color: var(--text-parchment);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* --- Page Background Texture --- */
.page-bg {
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(80,40,0,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(60,20,10,0.15) 0%, transparent 70%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* --- Layout --- */
.container {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}

/* --- Header --- */
.site-header {
  text-align: center;
  margin-bottom: 3rem;
}

.header-ornament {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0.5rem auto;
  max-width: 420px;
}

.header-ornament .line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-gold), transparent);
}

.header-ornament.bottom-ornament .line {
  background: linear-gradient(to right, transparent, var(--border-gold), transparent);
}

.header-ornament .skull {
  color: var(--gold-mid);
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
}

.site-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  margin: 0.4rem 0;
}

.title-top {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--gold-mid);
}

.title-main {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 2.9rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.15;
  color: var(--gold-bright);
  text-shadow:
    0 0 30px rgba(180,130,40,0.4),
    0 2px 6px rgba(0,0,0,0.9);
}

.site-subtitle {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--text-dim);
  font-size: 1rem;
  margin-top: 0.3rem;
  letter-spacing: 0.02em;
}

/* --- Controls Panel --- */
.controls-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-dim);
  border-top: 2px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-deep);
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.control-group { display: flex; flex-direction: column; gap: 0.6rem; }

.control-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-bright);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.label-icon { font-style: normal; opacity: 0.8; }

.control-hint {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}

/* --- Number Input --- */
.number-input-wrap {
  display: flex;
  align-items: center;
  width: fit-content;
  gap: 0;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-dark);
}

.num-btn {
  background: var(--bg-card);
  color: var(--gold-bright);
  border: none;
  width: 2.4rem;
  height: 2.6rem;
  font-size: 1.3rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  font-family: var(--font-heading);
  line-height: 1;
}

.num-btn:hover { background: var(--gold-dark); color: var(--text-white); }
.num-btn:active { background: var(--border-gold); }

#paint-count {
  width: 3.5rem;
  height: 2.6rem;
  text-align: center;
  background: var(--bg-dark);
  color: var(--text-parchment);
  border: none;
  border-left: 1px solid var(--border-dim);
  border-right: 1px solid var(--border-dim);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  outline: none;
  -moz-appearance: textfield;
}

#paint-count::-webkit-outer-spin-button,
#paint-count::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

#paint-count:focus { background: rgba(100,60,10,0.2); }

/* --- Ranges Fieldset --- */
.ranges-fieldset {
  border: none;
  padding: 0;
}

.ranges-fieldset legend {
  margin-bottom: 0.75rem;
}

.checkbox-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.range-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-dim);
  background: var(--bg-card);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: border-color 0.18s, color 0.18s, background 0.18s;
  user-select: none;
}

.range-checkbox-label:hover {
  border-color: var(--border-gold);
  color: var(--text-parchment);
}

.range-checkbox-label input[type="checkbox"] {
  appearance: none;
  width: 1rem;
  height: 1rem;
  border: 1px solid var(--border-dim);
  border-radius: 2px;
  background: var(--bg-dark);
  position: relative;
  flex-shrink: 0;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s;
}

.range-checkbox-label input[type="checkbox"]:checked {
  background: var(--gold-dark);
  border-color: var(--gold-bright);
}

.range-checkbox-label input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--gold-bright);
  font-size: 0.65rem;
  font-weight: bold;
  line-height: 1;
}

.range-checkbox-label:has(input:checked) {
  border-color: var(--border-gold);
  color: var(--gold-bright);
  background: rgba(80,45,10,0.3);
}

/* Count badge */
.range-count {
  background: var(--bg-void);
  color: var(--text-muted);
  font-size: 0.65rem;
  border-radius: 99px;
  padding: 0.05em 0.4em;
  font-family: var(--font-body);
  letter-spacing: 0;
}

.range-checkbox-label:has(input:checked) .range-count {
  color: var(--gold-mid);
}

/* --- Action Row --- */
.action-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.btn-pick {
  flex: 1;
  min-width: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 2rem;
  background: linear-gradient(135deg, var(--gold-dark) 0%, var(--gold-mid) 50%, var(--gold-dark) 100%);
  border: 1px solid var(--gold-bright);
  border-radius: var(--radius-md);
  color: var(--bg-void);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 12px rgba(160,100,20,0.4), inset 0 1px 0 rgba(255,220,120,0.3);
  position: relative;
  overflow: hidden;
}

.btn-pick::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.btn-pick:hover {
  background: linear-gradient(135deg, var(--gold-mid) 0%, var(--gold-bright) 50%, var(--gold-mid) 100%);
  box-shadow: 0 4px 20px rgba(180,130,40,0.55), inset 0 1px 0 rgba(255,220,120,0.4);
  transform: translateY(-1px);
}

.btn-pick:active {
  transform: translateY(0);
  box-shadow: 0 1px 8px rgba(160,100,20,0.4);
}

.btn-icon { font-size: 1.1rem; }

.btn-reset {
  padding: 0.8rem 1.4rem;
  background: transparent;
  border: 1px solid var(--border-dim);
  border-radius: var(--radius-md);
  color: var(--text-dim);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.18s;
}

.btn-reset:hover {
  border-color: var(--red-blood);
  color: var(--red-accent);
  background: rgba(80,10,10,0.2);
}

/* --- Error Banner --- */
.error-banner {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 1rem;
  background: rgba(80,10,10,0.35);
  border: 1px solid var(--red-blood);
  border-radius: var(--radius-md);
  color: #e07070;
  font-family: var(--font-body);
  font-size: 0.95rem;
  animation: fadeIn 0.25s ease;
}

.error-banner[hidden] { display: none; }
.error-icon { font-size: 1.1rem; flex-shrink: 0; }

/* --- Results Section --- */
.results-section {
  margin-top: 2.5rem;
  animation: fadeIn 0.35s ease;
}

.results-section[hidden] { display: none; }

.results-title {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.results-title .line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-gold), transparent);
}

.results-title-text {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold-mid);
  flex-shrink: 0;
}

/* --- Cards Grid --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.1rem;
}

/* --- Paint Card --- */
.paint-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  animation: cardIn 0.35s ease both;
}

.paint-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.8), var(--shadow-gold);
  border-color: var(--border-gold);
}

.card-swatch {
  width: 100%;
  height: 90px;
  position: relative;
}

.card-swatch-inner {
  width: 100%;
  height: 100%;
}

/* Checkered pattern visible when colour is transparent/white */
.card-swatch-inner {
  background-image:
    linear-gradient(45deg, #333 25%, transparent 25%),
    linear-gradient(-45deg, #333 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #333 75%),
    linear-gradient(-45deg, transparent 75%, #333 75%);
  background-size: 10px 10px;
  background-position: 0 0, 0 5px, 5px -5px, -5px 0px;
}

.card-swatch-colour {
  position: absolute;
  inset: 0;
}

.card-body {
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--border-dim);
}

.card-name {
  font-family: var(--font-heading);
  font-size: 0.87rem;
  font-weight: 600;
  color: var(--text-parchment);
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.card-range {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.15em 0.55em;
  border-radius: 99px;
  border: 1px solid;
}

.card-hex {
  font-family: 'Courier New', monospace;
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* Range badge colours */
.range-Base    { color: #c8a46e; border-color: #6b4f22; background: rgba(80,45,10,0.25); }
.range-Layer   { color: #7eb8c8; border-color: #2a5a6a; background: rgba(10,50,70,0.25); }
.range-Shade   { color: #9a7eb8; border-color: #4a2a6a; background: rgba(30,10,60,0.25); }
.range-Dry     { color: #b8c87e; border-color: #5a6a2a; background: rgba(30,50,10,0.25); }
.range-Edge    { color: #c8b07e; border-color: #6a5a2a; background: rgba(60,45,10,0.25); }
.range-Glaze   { color: #7eb8b8; border-color: #2a6a6a; background: rgba(10,50,50,0.25); }
.range-Texture { color: #b07e6e; border-color: #6a302a; background: rgba(60,20,10,0.25); }
.range-Technical { color: #8e8e8e; border-color: #4e4e4e; background: rgba(30,30,30,0.25); }

/* --- Animations --- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* stagger cards */
.paint-card:nth-child(1)  { animation-delay: 0.04s; }
.paint-card:nth-child(2)  { animation-delay: 0.08s; }
.paint-card:nth-child(3)  { animation-delay: 0.12s; }
.paint-card:nth-child(4)  { animation-delay: 0.16s; }
.paint-card:nth-child(5)  { animation-delay: 0.20s; }
.paint-card:nth-child(6)  { animation-delay: 0.24s; }
.paint-card:nth-child(7)  { animation-delay: 0.28s; }
.paint-card:nth-child(8)  { animation-delay: 0.32s; }
.paint-card:nth-child(9)  { animation-delay: 0.36s; }
.paint-card:nth-child(10) { animation-delay: 0.40s; }

/* --- Footer --- */
.site-footer {
  margin-top: 3rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-dim);
}

.site-footer a {
  color: var(--gold-dark);
  text-decoration: none;
  transition: color 0.15s;
}

.site-footer a:hover { color: var(--gold-mid); }

/* --- Responsive --- */
@media (max-width: 560px) {
  .container { padding: 1.5rem 1rem 2.5rem; }
  .controls-panel { padding: 1.4rem; gap: 1.4rem; }
  .btn-pick { font-size: 0.95rem; padding: 0.75rem 1.4rem; }
  .cards-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .card-swatch { height: 70px; }
}