/* ─── Aftershock: KingdomFall ─── */

:root {
  --kf-bg: #0E1410;
  --kf-bg-deep: #07090A;
  --kf-card: #161D18;
  --kf-card-2: #1F2922;
  --kf-border: #2C3A30;
  --kf-text: #E5E1D5;
  --kf-muted: #8C9387;
  --kf-gold: #D6B66B;
  --kf-orange: #FF8200;
  --kf-green: #4FA85B;
  --kf-blood: #A6403A;
  --kf-stone: #6E7066;

  --kf-tile: 64;
  --kf-grass-1: #2E4A2A;
  --kf-grass-2: #3A5933;
  --kf-mud: #4A3B26;
  --kf-forest: #1F3621;
  --kf-water: #1F3D44;
  --kf-stone-tile: #4D504A;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--kf-bg-deep);
  color: var(--kf-text);
  font-family: "Inter", system-ui, sans-serif;
  height: 100%;
  overflow: hidden;
  user-select: none;
}

/* Background — distant medieval landscape painted with gradients */
.kf-bg {
  position: fixed; inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(255,130,0,0.07), transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(79,168,91,0.06), transparent 60%),
    linear-gradient(180deg, #0A0F0C 0%, #0E1410 40%, #131A14 100%);
}
.kf-bg::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(255,200,140,0.3), transparent 80%),
    radial-gradient(1px 1px at 60% 50%, rgba(255,200,140,0.4), transparent 80%),
    radial-gradient(2px 2px at 80% 70%, rgba(255,200,140,0.25), transparent 80%);
  background-size: 220px 220px;
  background-repeat: repeat;
  opacity: 0.4;
  pointer-events: none;
}
.kf-vignette {
  position: fixed; inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 30%, rgba(0,0,0,0.55) 100%);
}

/* Header */
.kf-header {
  position: fixed; top: 0; left: 0; right: 0;
  height: 56px;
  z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 18px;
  background: linear-gradient(180deg, rgba(7,9,10,0.92), rgba(7,9,10,0.65));
  border-bottom: 1px solid rgba(214,182,107,0.15);
  backdrop-filter: blur(6px);
}
.kf-brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
  color: var(--kf-text);
  font-family: "Cinzel", serif;
  letter-spacing: 0.04em;
  font-size: 14px;
}
.kf-brand img { height: 24px; width: 24px; }
.kf-brand strong { color: var(--kf-gold); font-weight: 900; }
.kf-back {
  text-decoration: none;
  color: var(--kf-muted);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.kf-back:hover { color: var(--kf-text); }

/* Screens */
.kf-screen {
  display: none;
  position: fixed;
  top: 56px; left: 0; right: 0; bottom: 0;
  z-index: 5;
}
.kf-screen.active { display: block; }

/* ─── Title ─── */
.kf-title-shell {
  height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 28px;
  padding: 24px;
  position: relative;
  z-index: 5;
}
.kf-title-mark { text-align: center; position: relative; }
.kf-banner-icon {
  display: inline-block;
  filter: drop-shadow(0 0 16px rgba(255,130,0,0.35));
  margin-bottom: 8px;
}
.kf-title {
  font-family: "Cinzel Decorative", "Cinzel", serif;
  font-weight: 900;
  font-size: clamp(48px, 8vw, 112px);
  letter-spacing: 0.06em;
  line-height: 0.95;
  margin: 0;
  color: var(--kf-text);
  text-shadow:
    0 0 32px rgba(255,130,0,0.18),
    0 4px 12px rgba(0,0,0,0.6);
  background: linear-gradient(180deg, #F2EAD0 0%, #B8A56E 60%, #6B5A2E 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.kf-subtitle {
  font-family: "MedievalSharp", "Cinzel", serif;
  font-size: clamp(13px, 1.5vw, 18px);
  letter-spacing: 0.34em;
  color: var(--kf-muted);
  margin: 8px 0 0;
  text-transform: uppercase;
}
.kf-subtitle span { color: var(--kf-gold); margin: 0 6px; }

.kf-title-cta {
  display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;
}
.kf-btn, .kf-btn-primary, .kf-btn-icon {
  font-family: "Cinzel", serif;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 1px solid var(--kf-border);
  background: linear-gradient(180deg, #1B231D, #11171350);
  color: var(--kf-text);
  padding: 12px 22px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}
.kf-btn:hover { border-color: var(--kf-gold); color: var(--kf-gold); }
.kf-btn-primary {
  background: linear-gradient(180deg, var(--kf-orange) 0%, #C75F00 100%);
  border-color: #C75F00;
  color: #1A0F00;
  text-shadow: 0 1px 0 rgba(255,255,255,0.18);
  font-size: 14px;
  padding: 14px 28px;
}
.kf-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(255,130,0,0.35); }
.kf-btn-ghost { background: transparent; }

.kf-tagline {
  font-family: "MedievalSharp", "Cinzel", serif;
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--kf-muted);
  text-transform: uppercase;
  margin: 0;
}
.kf-tagline span { color: var(--kf-orange); }

.kf-faction-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(160px, 1fr));
  gap: 14px;
  margin-top: 14px;
  width: min(720px, 90vw);
}
.kf-faction-card {
  background: var(--kf-card);
  border: 1px solid var(--kf-border);
  border-radius: 6px;
  overflow: hidden;
  transition: all 0.2s;
}
.kf-faction-active {
  border-color: var(--kf-orange);
  box-shadow: 0 0 0 1px var(--kf-orange) inset, 0 6px 20px rgba(255,130,0,0.12);
}
.kf-faction-locked { opacity: 0.55; }
.kf-faction-banner {
  height: 80px;
  position: relative;
  border-bottom: 1px solid var(--kf-border);
}
.kf-knot {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 50% 50%,
    rgba(255,130,0,0.22) 0px, rgba(255,130,0,0.22) 2px,
    transparent 2px, transparent 12px,
    rgba(255,255,255,0.12) 12px, rgba(255,255,255,0.12) 14px,
    transparent 14px);
  background-size: 30px 30px;
  background-position: center;
}
.kf-faction-meta {
  padding: 10px 12px;
  text-align: center;
}
.kf-faction-name {
  font-family: "Cinzel", serif;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--kf-text);
}
.kf-faction-tag {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--kf-muted);
  margin-top: 4px;
}
.kf-faction-active .kf-faction-tag { color: var(--kf-orange); }

/* ─── How to Play ─── */
.kf-howto-shell {
  max-width: 720px;
  margin: 60px auto;
  padding: 28px;
  background: var(--kf-card);
  border: 1px solid var(--kf-border);
  border-radius: 8px;
  position: relative;
  z-index: 5;
}
.kf-howto-shell h2 {
  font-family: "Cinzel Decorative", serif;
  letter-spacing: 0.06em;
  margin: 0 0 18px;
  color: var(--kf-gold);
}
.kf-howto-list {
  margin: 0 0 24px;
  padding-left: 18px;
  line-height: 1.8;
  color: var(--kf-text);
}
.kf-howto-list li { margin-bottom: 6px; }
.kf-howto-list strong { color: var(--kf-gold); font-weight: 700; }
.kf-howto-units {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}
.kf-unit-card {
  display: flex; align-items: center; gap: 10px;
  background: var(--kf-card-2);
  border: 1px solid var(--kf-border);
  padding: 10px;
  border-radius: 4px;
}
.kf-unit-glyph {
  width: 36px; height: 36px;
  background: var(--kf-bg-deep);
  border: 1px solid var(--kf-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  border-radius: 4px;
}
.kf-unit-tag { font-size: 10px; color: var(--kf-muted); text-transform: uppercase; letter-spacing: 0.12em; margin-top: 2px; }

/* ─── Game ─── */
#screen-game { background: #000; }
#kf-canvas {
  display: block;
  width: 100%; height: 100%;
  cursor: crosshair;
  background: #0A0F0C;
}

/* HUD */
.kf-hud-top {
  position: absolute; top: 12px; left: 12px;
  display: flex; gap: 8px;
  z-index: 20;
}
.kf-resource {
  display: flex; align-items: center; gap: 6px;
  background: rgba(7,9,10,0.85);
  border: 1px solid var(--kf-border);
  border-radius: 4px;
  padding: 7px 12px;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--kf-text);
  backdrop-filter: blur(4px);
}
.kf-resource-icon { font-size: 16px; }
.kf-icon-gold { color: var(--kf-gold); }
.kf-icon-wood { color: #9A6E3A; }

.kf-hud-right {
  position: absolute; top: 12px; right: 12px;
  z-index: 20;
  display: flex; flex-direction: column; gap: 8px;
  align-items: flex-end;
}
#kf-minimap {
  display: block;
  border: 1px solid var(--kf-border);
  background: #0A0F0C;
  border-radius: 4px;
}
.kf-hud-controls { display: flex; gap: 6px; }
.kf-btn-icon {
  width: 36px; height: 36px;
  padding: 0;
  font-size: 14px;
}

.kf-hud-bottom {
  position: absolute; bottom: 12px; left: 12px; right: 12px;
  display: flex; gap: 12px;
  z-index: 20;
  pointer-events: none;
}
.kf-selection-panel, .kf-build-menu {
  pointer-events: auto;
  background: rgba(7,9,10,0.88);
  border: 1px solid var(--kf-border);
  border-radius: 6px;
  padding: 12px;
  backdrop-filter: blur(4px);
}
.kf-selection-panel {
  flex: 1;
  min-height: 100px;
  font-size: 13px;
}
.kf-sel-empty { color: var(--kf-muted); font-style: italic; }
.kf-sel-title {
  font-family: "Cinzel", serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--kf-gold);
  margin-bottom: 6px;
  text-transform: uppercase;
  font-size: 13px;
}
.kf-sel-row {
  display: flex; justify-content: space-between;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--kf-text);
  padding: 2px 0;
}
.kf-sel-row span:last-child { color: var(--kf-muted); }
.kf-train-btn {
  font-family: "Cinzel", serif;
  font-size: 11px;
  letter-spacing: 0.08em;
  background: var(--kf-card-2);
  border: 1px solid var(--kf-border);
  color: var(--kf-text);
  padding: 6px 10px;
  border-radius: 3px;
  cursor: pointer;
  text-transform: uppercase;
  margin: 4px 4px 0 0;
}
.kf-train-btn:hover { border-color: var(--kf-gold); color: var(--kf-gold); }
.kf-train-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.kf-train-cost {
  display: inline-block;
  margin-left: 6px;
  color: var(--kf-muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
}

.kf-build-menu {
  display: flex; gap: 6px;
  align-items: center;
}
.kf-build-btn {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  width: 70px; height: 70px;
  background: var(--kf-card-2);
  border: 1px solid var(--kf-border);
  color: var(--kf-text);
  font-size: 22px;
  cursor: pointer;
  border-radius: 4px;
  font-family: "Cinzel", serif;
  font-weight: 700;
  transition: all 0.12s;
}
.kf-build-btn span {
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--kf-muted);
}
.kf-build-btn:hover:not(:disabled) {
  border-color: var(--kf-gold);
  color: var(--kf-gold);
}
.kf-build-btn:hover:not(:disabled) span { color: var(--kf-gold); }
.kf-build-btn.kf-build-active {
  border-color: var(--kf-orange);
  background: rgba(255,130,0,0.12);
}
.kf-build-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Overlay */
.kf-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.78);
  align-items: center; justify-content: center;
  z-index: 40;
  backdrop-filter: blur(6px);
}
.kf-overlay:not([hidden]) { display: flex; }
.kf-overlay[hidden] { display: none !important; }
.kf-overlay-shell {
  text-align: center;
  background: var(--kf-card);
  border: 1px solid var(--kf-gold);
  padding: 36px 48px;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(255,130,0,0.18);
}
.kf-overlay-shell h2 {
  font-family: "Cinzel Decorative", serif;
  font-size: 48px;
  margin: 0 0 8px;
  letter-spacing: 0.06em;
  color: var(--kf-gold);
}
.kf-overlay-shell p {
  color: var(--kf-muted);
  font-family: "MedievalSharp", serif;
  letter-spacing: 0.1em;
  margin: 0 0 20px;
}
.kf-overlay-shell .kf-btn-primary { margin-right: 8px; }

/* In-game help overlay — wider shell, two-column layout */
.kf-help-shell {
  text-align: left;
  max-width: 920px;
  width: min(920px, 92vw);
  max-height: 86vh;
  overflow-y: auto;
  padding: 28px 36px;
}
.kf-help-shell h2 {
  font-size: 32px;
  margin: 0 0 18px;
  text-align: center;
}
.kf-help-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 22px;
}
@media (max-width: 720px) {
  .kf-help-grid { grid-template-columns: 1fr; gap: 14px; }
}
.kf-help-grid h3 {
  font-family: "Cinzel", serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 14px;
  color: var(--kf-gold);
  margin: 18px 0 6px;
  text-transform: uppercase;
}
.kf-help-grid h3:first-child { margin-top: 0; }
.kf-help-grid p { color: var(--kf-text); margin: 0 0 8px; line-height: 1.5; font-size: 14px; }
.kf-help-grid ul { margin: 0 0 6px; padding-left: 18px; line-height: 1.7; color: var(--kf-text); font-size: 13px; }
.kf-help-grid ul li { margin-bottom: 2px; }
.kf-help-grid strong { color: var(--kf-gold); font-weight: 700; }
.kf-help-shell > .kf-btn-primary { display: block; margin: 0 auto; }