:root {
  --bg: #0a0806;
  --bg2: #120f0a;
  --bg3: #1c1710;
  --bg4: #261f15;
  --border: #3a2e1e;
  --border2: #5a4a2e;
  --gold: #c9a84c;
  --gold2: #e8c96a;
  --gold3: #f5e09a;
  --text: #d4c4a0;
  --text2: #a08860;
  --text3: #6a5840;
  --red: #c94444;
  --red2: #e86060;
  --green: #4caa6a;
  --green2: #72cc8a;
  --blue: #4488cc;
  --blue2: #66aaee;
  --purple: #8844cc;
  --purple2: #aa66ee;
  --orange: #cc6a22;
  --orange2: #ee8a44;
  --hp-bar: #cc3333;
  --mana-bar: #3366cc;
  --slot-size: 72px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

/* Touch-friendly adjustments */
button,
.item-slot {
  touch-action: manipulation;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Crimson Pro", serif;
  font-size: 16px;
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(
      ellipse at 20% 50%,
      rgba(201, 168, 76, 0.04) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 80% 20%,
      rgba(136, 68, 204, 0.04) 0%,
      transparent 50%
    );
}

h1,
h2,
h3,
.label {
  font-family: "Cinzel", serif;
  letter-spacing: 0.05em;
}

#app {
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-columns: 1fr 340px;
  grid-template-areas:
    "header header"
    "arena  inventory"
    "log    inventory";
  min-height: 100vh;
  max-width: 1280px;
  margin: 0 auto;
  gap: 0;
}

/* ─── HEADER ─── */
#header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}
#header h1 {
  font-size: 22px;
  color: var(--gold2);
  letter-spacing: 0.12em;
}
#header .subtitle {
  font-size: 13px;
  color: var(--text3);
  font-style: italic;
}
#stats-header {
  display: flex;
  gap: 20px;
  align-items: center;
}
.stat-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
}
.stat-pill .val {
  color: var(--gold2);
  font-family: "Cinzel", serif;
  font-size: 14px;
}

/* ─── ARENA ─── */
#arena {
  grid-area: arena;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  min-height: 480px;
}

#combat-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* ─── GAME CONTROLS ─── */
#game-controls {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 8px;
  z-index: 10;
}

.control-btn {
  background: linear-gradient(135deg, var(--bg3) 0%, var(--bg2) 100%);
  border: 2px solid var(--border2);
  border-radius: 8px;
  padding: 10px 18px;
  font-family: "Cinzel", serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gold);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow:
    inset 0 1px 3px rgba(0, 0, 0, 0.5),
    0 2px 8px rgba(0, 0, 0, 0.4);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.control-btn:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
  box-shadow:
    inset 0 1px 3px rgba(0, 0, 0, 0.5),
    0 4px 12px rgba(201, 168, 76, 0.4);
  color: var(--gold2);
}

.control-btn:active {
  transform: translateY(0);
  box-shadow:
    inset 0 2px 4px rgba(0, 0, 0, 0.6),
    0 1px 4px rgba(0, 0, 0, 0.3);
}

.control-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.control-btn.active {
  background: linear-gradient(135deg, var(--bg4) 0%, var(--bg3) 100%);
  border-color: var(--gold2);
  color: var(--gold2);
  box-shadow:
    inset 0 1px 3px rgba(0, 0, 0, 0.5),
    0 0 12px rgba(201, 168, 76, 0.5);
}

/* ─── LOG ─── */
#log-panel {
  grid-area: log;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  border-top: 1px solid var(--border);
  height: 130px;
  overflow-y: auto;
  padding: 8px 16px;
}
#log-panel::-webkit-scrollbar {
  width: 4px;
}
#log-panel::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: 2px;
}
.log-entry {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text2);
  border-bottom: 1px solid rgba(58, 46, 30, 0.4);
  padding: 2px 0;
  animation: fadeIn 0.3s ease;
}
.log-entry.dmg {
  color: var(--red2);
}
.log-entry.heal {
  color: var(--green2);
}
.log-entry.item {
  color: var(--gold2);
}
.log-entry.kill {
  color: var(--purple2);
  font-family: "Cinzel", serif;
  font-size: 12px;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateX(-4px);
  }
  to {
    opacity: 1;
  }
}

/* ─── INVENTORY ─── */
#inventory {
  grid-area: inventory;
  background: var(--bg3);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 0;
}
#inventory::-webkit-scrollbar {
  width: 4px;
}
#inventory::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: 2px;
}

.inv-section {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.inv-section-title {
  font-family: "Cinzel", serif;
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--text3);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.inv-section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Item slot grid */
.slots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.item-slot {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: default;
  transition:
    border-color 0.15s,
    transform 0.1s;
  overflow: visible;
}
.item-slot:hover {
  border-color: var(--border2);
  z-index: 100;
}
.item-slot.active {
  border-color: var(--gold);
  box-shadow:
    0 0 12px rgba(201, 168, 76, 0.3),
    inset 0 0 8px rgba(201, 168, 76, 0.1);
  animation: itemPulse 0.6s ease;
}
.item-slot.cooldown {
  border-color: var(--text3);
}

@keyframes itemPulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 rgba(201, 168, 76, 0);
  }
  40% {
    transform: scale(1.08);
    box-shadow: 0 0 20px rgba(201, 168, 76, 0.6);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 12px rgba(201, 168, 76, 0.3);
  }
}

.item-icon {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  border-radius: 5px;
  transition: filter 0.2s;
  position: relative;
  z-index: 1;
}
.item-slot.cooldown .item-icon {
  filter: grayscale(0.7) brightness(0.6);
}

.cooldown-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-family: "Cinzel", serif;
  color: var(--text2);
  border-radius: 0 0 5px 5px;
  z-index: 2;
  height: 0;
  overflow: hidden;
  transition: height 0.2s;
}
.item-slot.cooldown .cooldown-overlay {
  height: 16px;
}

.cd-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--gold);
  border-radius: 0 0 0 5px;
  z-index: 3;
  transition: width 0.1s linear;
}

.rarity-gem {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  z-index: 4;
}
.rarity-common {
  background: #888;
}
.rarity-uncommon {
  background: var(--green);
}
.rarity-rare {
  background: var(--blue);
}
.rarity-epic {
  background: var(--purple);
}
.rarity-legendary {
  background: var(--gold);
  box-shadow: 0 0 6px var(--gold);
}

/* Tooltip */
.tooltip {
  position: fixed;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 12px 14px;
  min-width: 220px;
  max-width: 280px;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transform: translateY(4px);
  transition:
    opacity 0.15s,
    transform 0.15s;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8);
}
.tooltip.show {
  opacity: 1;
  transform: translateY(0);
}
.tt-name {
  font-family: "Cinzel", serif;
  font-size: 14px;
  margin-bottom: 4px;
}
.tt-rarity {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
  font-family: "Cinzel", serif;
}
.tt-desc {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.5;
  margin-bottom: 8px;
  font-style: italic;
}
.tt-effect {
  font-size: 13px;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 6px;
}
.tt-enchant {
  font-size: 12px;
  color: var(--purple2);
  border-top: 1px solid var(--border);
  padding-top: 6px;
  margin-top: 4px;
  line-height: 1.5;
}
.tt-cd {
  font-size: 11px;
  color: var(--text3);
  margin-top: 4px;
  font-family: "Cinzel", serif;
}

/* Player bars */
.bars-container {
  padding: 10px 16px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.bar-label {
  font-family: "Cinzel", serif;
  font-size: 10px;
  color: var(--text3);
  width: 28px;
  text-align: right;
  letter-spacing: 0.05em;
}
.bar-track {
  flex: 1;
  height: 8px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease;
}
.bar-fill.hp {
  background: linear-gradient(90deg, #882222, var(--hp-bar));
}
.bar-fill.mana {
  background: linear-gradient(90deg, #223388, var(--mana-bar));
}
.bar-val {
  font-size: 11px;
  color: var(--text2);
  min-width: 60px;
  font-family: "Cinzel", serif;
}

/* Wave info */
.wave-info {
  padding: 8px 16px;
  background: var(--bg4);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.wave-num {
  font-family: "Cinzel", serif;
  font-size: 13px;
  color: var(--gold2);
}
.enemy-count {
  font-size: 12px;
  color: var(--text3);
}
.gold-display {
  font-family: "Cinzel", serif;
  font-size: 13px;
  color: var(--gold);
}

/* ─── CANVAS STYLE ─── */
canvas {
  image-rendering: pixelated;
}

/* ═══════════════════════════════════════
   RESPONSIVE DESIGN
   ═══════════════════════════════════════ */

/* ─── TABLET (max-width: 1024px) ─── */
@media (max-width: 1024px) {
  #app {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto auto;
    grid-template-areas:
      "header"
      "arena"
      "log"
      "inventory";
    max-width: 100%;
  }

  #inventory {
    max-height: 400px;
    border-left: none;
    border-top: 1px solid var(--border);
  }

  #log-panel {
    height: 150px;
    border-right: none;
  }

  #header {
    flex-wrap: wrap;
    gap: 12px;
  }

  #stats-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .stat-pill {
    font-size: 11px;
    padding: 6px 10px;
  }

  #game-controls {
    top: 12px;
    right: 12px;
    gap: 6px;
  }

  .control-btn {
    padding: 8px 14px;
    font-size: 0.85rem;
  }
}

/* ─── MOBILE (max-width: 768px) ─── */
@media (max-width: 768px) {
  #header {
    padding: 10px 16px;
  }

  #header h1 {
    font-size: 18px;
  }

  #header .subtitle {
    font-size: 11px;
  }

  #stats-header {
    width: 100%;
    justify-content: space-between;
  }

  .stat-pill {
    font-size: 10px;
    padding: 5px 8px;
    flex: 1;
    min-width: 0;
    text-align: center;
  }

  .stat-pill span {
    display: block;
  }

  #arena {
    min-height: 400px;
  }

  #game-controls {
    top: 8px;
    right: 8px;
    gap: 4px;
  }

  .control-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  #log-panel {
    height: 120px;
    padding: 6px 12px;
    font-size: 11px;
  }

  .log-entry {
    padding: 4px 6px;
    margin-bottom: 3px;
    font-size: 11px;
  }

  #inventory {
    padding: 12px;
    max-height: 500px;
  }

  .bars-container {
    margin-bottom: 12px;
  }

  .bar-row {
    margin-bottom: 8px;
    gap: 6px;
  }

  .bar-label {
    font-size: 11px;
    min-width: 24px;
  }

  .bar-track {
    height: 16px;
  }

  .bar-val {
    font-size: 10px;
    min-width: 50px;
  }

  .wave-info {
    padding: 6px 12px;
  }

  .wave-num,
  .gold-display {
    font-size: 11px;
  }

  .enemy-count {
    font-size: 10px;
  }

  .inv-section {
    margin-bottom: 14px;
  }

  .inv-section-title {
    font-size: 12px;
    margin-bottom: 6px;
    padding-bottom: 4px;
  }

  .slots-grid {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 8px;
  }

  .item-slot {
    min-height: 60px;
  }

  .item-icon {
    font-size: 2rem;
  }

  .rarity-gem {
    width: 6px;
    height: 6px;
    top: 3px;
    right: 3px;
  }

  .cooldown-overlay {
    font-size: 0.8rem;
  }

  .tooltip {
    max-width: 240px;
    padding: 10px;
    font-size: 0.85rem;
  }

  .tooltip .tt-name {
    font-size: 1rem;
  }

  .tooltip .tt-rarity {
    font-size: 0.75rem;
  }

  .tooltip .tt-enchant {
    font-size: 0.8rem;
    padding: 5px 6px;
  }

  .tooltip .tt-cd {
    font-size: 0.75rem;
  }
}

/* ─── MOBILE PEQUENO (max-width: 480px) ─── */
@media (max-width: 480px) {
  #header h1 {
    font-size: 16px;
  }

  #header .subtitle {
    display: none;
  }

  #stats-header {
    gap: 4px;
  }

  .stat-pill {
    font-size: 9px;
    padding: 4px 6px;
    border-radius: 4px;
  }

  .stat-pill .val {
    font-size: 10px;
  }

  #arena {
    min-height: 300px;
  }

  #game-controls {
    top: 6px;
    right: 6px;
    flex-direction: column;
    gap: 4px;
  }

  .control-btn {
    padding: 6px 10px;
    font-size: 0.75rem;
    white-space: nowrap;
  }

  #log-panel {
    height: 100px;
    padding: 4px 8px;
    font-size: 10px;
  }

  .log-entry {
    padding: 3px 5px;
    font-size: 10px;
    line-height: 1.3;
  }

  #inventory {
    padding: 8px;
  }

  .bars-container {
    margin-bottom: 10px;
  }

  .bar-row {
    margin-bottom: 6px;
    gap: 4px;
  }

  .bar-label {
    font-size: 10px;
    min-width: 22px;
  }

  .bar-track {
    height: 14px;
  }

  .bar-val {
    font-size: 9px;
    min-width: 45px;
  }

  .wave-info {
    padding: 5px 8px;
    flex-wrap: wrap;
    gap: 4px;
  }

  .wave-num,
  .gold-display {
    font-size: 10px;
  }

  .enemy-count {
    font-size: 9px;
  }

  .inv-section {
    margin-bottom: 12px;
  }

  .inv-section-title {
    font-size: 11px;
    margin-bottom: 5px;
  }

  .slots-grid {
    grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    gap: 6px;
  }

  .item-slot {
    min-height: 50px;
  }

  .item-icon {
    font-size: 1.6rem;
  }

  .rarity-gem {
    width: 5px;
    height: 5px;
    top: 2px;
    right: 2px;
  }

  .cooldown-overlay {
    font-size: 0.7rem;
  }

  .cd-bar {
    height: 3px;
  }

  .tooltip {
    max-width: 200px;
    padding: 8px;
    font-size: 0.8rem;
  }

  .tooltip .tt-name {
    font-size: 0.95rem;
    margin-bottom: 3px;
  }

  .tooltip .tt-rarity {
    font-size: 0.7rem;
    margin-bottom: 8px;
  }

  .tooltip .tt-desc {
    margin-bottom: 8px;
    font-size: 0.75rem;
  }

  .tooltip .tt-effect {
    margin-bottom: 6px;
    font-size: 0.75rem;
  }

  .tooltip .tt-enchant {
    font-size: 0.75rem;
    padding: 4px 5px;
    margin-bottom: 6px;
  }

  .tooltip .tt-cd {
    font-size: 0.7rem;
  }
}

/* ─── LANDSCAPE MOBILE ─── */
@media (max-width: 768px) and (orientation: landscape) {
  #app {
    grid-template-columns: 1fr 320px;
    grid-template-rows: auto 1fr;
    grid-template-areas:
      "header header"
      "arena  inventory"
      "log    inventory";
  }

  #arena {
    min-height: 100%;
  }

  #inventory {
    max-height: none;
    border-left: 1px solid var(--border);
    border-top: none;
  }

  #log-panel {
    height: 120px;
  }
}