html,
body {
  height: 100%;
}
body {
  font-family: "Inter", sans-serif;
  background-color: #0f172a; /* slate-900 */
  color: #f1f5f9; /* slate-100 */
  /* allow natural scroll if something overflows; we aim to size dynamically to avoid it */
}
.arcade-font {
  font-family: "Press Start 2P", cursive;
}
.board {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-template-rows: repeat(10, 1fr);
  /* Responsive board that fills its column and keeps 1:1 aspect for 10x10 */
  height: 100%;
  aspect-ratio: 1 / 1;
  width: auto;
  max-width: 100%;
  max-height: 100%;
  margin-left: auto;
  margin-right: auto;
  gap: clamp(2px, 0.8vw, 10px);
  padding: clamp(6px, 1.1vw, 14px);
  box-sizing: border-box;
  background: #1e293b; /* slate-800 */
  min-height: 400px; /* Ensure board has minimum height */
  border-radius: 24px;
  border: 4px solid #475569;
  box-shadow: 0 0 20px rgba(71, 85, 105, 0.5), inset 0 0 15px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}
.tile {
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(9px, 1.1vw, 15px);
  /* Fallback for browsers that don't support clamp */
  font-size: 12px;
  font-weight: 700;
  border-radius: 12px;
  /* Use normal flow so grid placement works; fill the grid cell */
  position: relative;
  width: 100%;
  height: 100%;
  color: #0f172a;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  box-shadow: inset 0 0 4px rgba(0, 0, 0, 0.25);
}
/* Progress overlay to visually indicate completion within a year (0..1) */
/* Progress gradient is set inline per tile */
.tile-year1 {
  background-color: #a7f3d0;
  border-color: #34d399;
}
.tile-year2 {
  background-color: #86efac;
  border-color: #22c55e;
}
.tile-year3 {
  background-color: #f1e9a8;
  border-color: #d4b44c;
}
.tile-year4 {
  background-color: #c7d2fe;
  border-color: #6366f1;
}
.tile-chance {
  border-color: #f472b6;
  box-shadow: 0 0 12px rgba(244, 114, 182, 0.6);
}

.tile-start {
  background-color: #818cf8;
  border-color: #6366f1;
  color: white;
  animation: pulse-start 2s infinite;
}
.tile-placement {
  border-color: #facc15;
  box-shadow: 0 0 15px #facc15;
  animation: pulse-placement 1.5s infinite;
}
.tile-semester-end {
  border-color: #a78bfa;
  animation: pulse-sem-end 2.5s infinite;
  background-color: #fef08a !important;
  color: #000 !important;
}

@keyframes pulse-start {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 10px #818cf8;
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 20px #6366f1;
  }
}
@keyframes pulse-placement {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}
@keyframes pulse-sem-end {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

.player-pawn {
  width: var(--pawn-size, 64px);
  height: var(--pawn-size, 64px);
  /* Fallback for browsers that don't support CSS custom properties */
  width: 64px;
  height: 64px;
  position: absolute;
  transition: all 0.25s ease-in-out;
  z-index: 10;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.7));
}
.player-pawn svg {
  width: 70%;
  height: 70%;
}

.icon-option {
  border: 2px solid #64748b;
  background: #334155;
}
.icon-option.selected {
  border-color: #fbbf24;
  box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.4);
  background: #1f2937;
}
.active-card {
  box-shadow: 0 0 0 2px rgba(251, 191, 36, 0.5);
  background: rgba(251, 191, 36, 0.06);
}
.active-card {
  box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.9),
    0 0 18px rgba(251, 191, 36, 0.5) inset;
  position: relative;
  z-index: 1;
}
.lost-card {
  filter: grayscale(1) blur(0.2px);
  opacity: 0.5;
  position: relative;
}
.lost-card::after {
  content: "LOST";
  position: absolute;
  top: 8px;
  left: 8px;
  color: #f87171;
  font-weight: 800;
  font-size: 12px;
  border: 2px solid #f87171;
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(15, 23, 42, 0.8);
}
.pawn-lost {
  filter: grayscale(1) opacity(0.55);
}
/* hide scrollbars while keeping scroll functionality */
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  overflow: auto;
}
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
/* Right sidebar layout */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
/* Compact icon-only back button */
#back-button {
  width: clamp(28px, 6vw, 40px);
  height: clamp(28px, 6vw, 40px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
/* Mobile/iPad layout constraints to keep board visible and sidebar readable */
@media (max-width: 1024px) {
  /* Board may be smaller than 60dvh, but never larger */
  #board-col {
    height: auto !important;
    display: flex;
    justify-content: center;
    align-items: flex-start;
  }
  .board {
    width: min(100%, 60dvh);
    height: auto;
  }
  #sidebar-col {
    height: 40dvh !important;
    overflow: auto;
  }
  header {
    margin-bottom: 8px;
  }
}
@media (max-width: 640px) {
  /* On phones ensure square fits within 60% of viewport height and available width */
  #board-col {
    height: auto !important;
    display: flex;
    justify-content: center;
    align-items: flex-start;
  }
  #sidebar-col {
    height: 40dvh !important;
  }
  .board {
    width: min(100%, 60dvh);
    height: auto;
    gap: clamp(1px, 1.6vw, 6px);
    padding: clamp(4px, 1.2vw, 10px);
  }
  .tile {
    font-size: clamp(9px, 2.8vw, 14px);
    border-width: 2px;
    border-radius: 10px;
  }
}

#modal-backdrop {
  transition: opacity 0.3s ease;
  backdrop-filter: blur(5px);
}
#how-to-play-modal .prose {
  font-family: "Inter", sans-serif;
}
#how-to-play-modal h3 {
  font-family: "Press Start 2P", cursive;
  color: #f59e0b; /* amber-500 */
  margin-bottom: 0.5em;
}
#how-to-play-modal h4 {
  font-family: "Press Start 2P", cursive;
  color: #eab308; /* yellow-500 */
  font-size: 0.9em;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}
#how-to-play-modal ul,
#how-to-play-modal ol {
  margin-left: 1.5em;
}
#how-to-play-modal li {
  margin-bottom: 0.5em;
}
#how-to-play-modal p {
  line-height: 1.6;
}
#how-to-play-modal .prose::-webkit-scrollbar {
  width: 8px;
}
#how-to-play-modal .prose::-webkit-scrollbar-track {
  background: #1e293b; /* slate-800 */
  border-radius: 10px;
}
#how-to-play-modal .prose::-webkit-scrollbar-thumb {
  background: #f59e0b; /* amber-500 */
  border-radius: 10px;
}
#how-to-play-modal .prose::-webkit-scrollbar-thumb:hover {
  background: #fbbf24; /* amber-400 */
}
.modal-content {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 0.3s ease;
  position: relative;
  padding-top: 0;
}

/* Only heart +/- uses this pop; other animations are minimal */
.gpa-change-anim {
  animation: none;
}
.heart-change-anim {
  animation: gpa-pop 0.7s ease-out;
}
.indicator-pop {
  animation: gpa-pop 0.6s ease-out;
}
@keyframes gpa-pop {
  0% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
  100% {
    transform: translateY(-30px) scale(1.2);
    opacity: 0;
  }
}
@keyframes confetti-fall {
  0% {
    transform: translateY(-10vh) rotate(0deg);
  }
  100% {
    transform: translateY(110vh) rotate(720deg);
  }
}
/* Dice loading animation */
.dice-spin {
  display: flex;
  align-items: center;
  gap: 6px;
}
.dice-spin span {
  width: 6px;
  height: 6px;
  background: #0f172a;
  border-radius: 2px;
  animation: dicePulse 0.5s infinite ease-in-out;
}
.dice-spin span:nth-child(2) {
  animation-delay: 0.1s;
}
.dice-spin span:nth-child(3) {
  animation-delay: 0.2s;
}
@keyframes dicePulse {
  0% {
    transform: scale(1);
    opacity: 0.3;
  }
  100% {
    transform: scale(1.8);
    opacity: 1;
  }
}
/* Flying squad magnifier scan */
.magnify-scan {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
.magnify-scan .glass {
  font-size: 28px;
  animation: scan 1s linear infinite alternate;
}
@keyframes scan {
  from {
    transform: translateX(-10px) rotate(0deg);
  }
  to {
    transform: translateX(10px) rotate(8deg);
  }
}
/* Toast */
#toast {
  position: fixed;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%);
  background: #0f172a;
  color: #f1f5f9;
  border: 2px solid #fbbf24;
  padding: 10px 14px;
  border-radius: 10px;
  z-index: 70;
  transition: bottom 0.3s ease;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}
#toast.show {
  bottom: 24px;
}
#modal-emoji {
  animation: none;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  position: absolute;
  /* Sit just above the modal card with a small gap */
  top: calc(50% - min(240px, 42vh) - 18px);
  left: 50%;
  transform: translateX(-50%);
  background: #0f172a;
  border: 4px solid #fbbf24;
  border-radius: 9999px;
  padding: 2px 8px;
  z-index: 2;
  font-size: clamp(22px, 6vw, 38px);
}

.spicy-mode .board {
  background: #2d0f0f;
  border-color: #ff6b6b;
  box-shadow: 0 0 30px rgba(255, 107, 107, 0.7),
    inset 0 0 20px rgba(0, 0, 0, 0.6);
}

.spicy-mode .tile-year1 {
  background-color: #ffdddd;
  border-color: #ff8a8a;
}
.spicy-mode .tile-year2 {
  background-color: #ffcccc;
  border-color: #ff7070;
}
.spicy-mode .tile-year3 {
  background-color: #ffbbbb;
  border-color: #ff5555;
}
.spicy-mode .tile-year4 {
  background-color: #ffaaaa;
  border-color: #ff4040;
}
.spicy-mode .tile-start {
  background-color: #ff4d4d;
  border-color: #ff0000;
}
.spicy-mode .tile-placement {
  border-color: #ffcc00;
  box-shadow: 0 0 15px #ffcc00;
}
.spicy-mode .tile-semester-end {
  border-color: #ff8c00;
}
.spicy-mode .tile-semester-end {
  background-color: #ffd1a1 !important;
  color: #000 !important;
}

/* Player card emoji sizing and overflow control */
.player-card-emoji {
  font-size: clamp(14px, 4.5vw, 22px);
  line-height: 1;
  display: inline-block;
}
.player-gpa-value {
  font-size: clamp(16px, 5vw, 24px);
}
.player-card-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 2px;
  overflow: hidden;
  padding-top: 2px;
}
.meta-emoji {
  font-size: clamp(12px, 4vw, 18px);
}
.meta-num {
  font-size: clamp(12px, 4.2vw, 16px);
}

/* Mobile fullscreen layout optimizations */
.mobile-fullscreen #game-area > .grid {
  grid-template-columns: 1fr !important;
}
.mobile-fullscreen .board {
  height: 60vh !important;
}
.mobile-fullscreen #player-info-cards {
  max-height: 38vh !important;
}
.mobile-fullscreen #game-log {
  max-height: 22vh !important;
}
/* Desktop fullscreen small tweaks */
.desktop-fullscreen #game-area {
  height: calc(100vh - 120px) !important;
}
.desktop-fullscreen .board {
  height: 100% !important;
}

/* Flip card styles */
.card-flip {
  perspective: 1000px;
}
.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.5s;
  transform-style: preserve-3d;
}
.card-flip.flipped .card-inner {
  transform: rotateY(180deg);
}
.card-front,
.card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 0.5rem;
}
.card-back {
  transform: rotateY(180deg);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Game log sticky title and 3-line viewport */
#game-log {
  position: relative;
}
#game-log h3 {
  position: sticky;
  top: 0;
  background: inherit;
  padding-bottom: 6px;
  z-index: 1;
}
#game-log-list {
  max-height: calc(1.35em * 3);
  overflow: hidden;
}
.spicy-mode .tile-chance {
  border-color: #ff1493;
  box-shadow: 0 0 12px #ff1493;
}

/* SPICY mode: animated flaming background */
@keyframes spicy-flames {
  0% {
    background-position: 0 0, 0 0, 0 0;
  }
  50% {
    background-position: 0 -40px, 0 -80px, 0 -120px;
  }
  100% {
    background-position: 0 0, 0 0, 0 0;
  }
}
.spicy-mode {
  /* layered radial gradients to simulate rising flames */
  background: radial-gradient(
        closest-side,
        rgba(255, 170, 0, 0.15),
        transparent 70%
      )
      50% 120%/140% 60% repeat-y,
    radial-gradient(closest-side, rgba(255, 60, 0, 0.12), transparent 70%) 30%
      130%/160% 80% repeat-y,
    radial-gradient(closest-side, rgba(255, 255, 255, 0.06), transparent 70%)
      70% 140%/120% 70% repeat-y,
    #1b0e0e;
  animation: spicy-flames 6s linear infinite;
}

/* Flaming title effect */
@keyframes title-flicker {
  0%,
  100% {
    text-shadow: 0 0 10px #ffae00, 0 0 20px #ff3b00, 0 0 30px #ff5200;
    transform: translateY(0);
  }
  50% {
    text-shadow: 0 0 16px #ffd000, 0 0 28px #ff6a00, 0 0 40px #ff1f00;
    transform: translateY(-1px);
  }
}
.spicy-mode #title {
  color: #ffd34d !important;
  text-shadow: none !important;
  background: linear-gradient(180deg, #fff0a3 0%, #ffb703 40%, #ff3b00 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: title-flicker 1.6s ease-in-out infinite;
}

.spicy-mode #player-setup {
  background-color: #2d1a1a;
  border-color: #ff8a8a;
}

.spicy-mode .sidebar .bg-slate-800,
.spicy-mode #player-info-cards .bg-slate-800,
.spicy-mode #modal-content {
  background-color: #2d1a1a;
  border-color: #ff8a8a;
}

.spicy-mode .text-amber-400 {
  color: #ffc107;
}

.spicy-mode .bg-pink-600 {
  background-color: #ff4d4d;
}

.spicy-mode .border-pink-800 {
  border-color: #cc0000;
}

.spicy-mode .bg-indigo-600 {
  background-color: #ff6f00;
}

.spicy-mode .border-indigo-800 {
  border-color: #cc5800;
}

/* Custom scrollbar for How to Play modal */
.custom-scrollbar {
  scrollbar-width: thin;
  scrollbar-color: #f97316 #374151;
}

.custom-scrollbar::-webkit-scrollbar {
  width: 8px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: #374151;
  border-radius: 4px;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background: #f97316;
  border-radius: 4px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: #ea580c;
}

/* Mobile Touch Optimizations */
.touch-manipulation {
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(255, 255, 255, 0.1);
  user-select: none;
  -webkit-user-select: none;
}

/* Better mobile button interactions */
@media (max-width: 640px) {
  .touch-manipulation:active {
    transform: scale(0.98);
  }

  /* Larger touch targets for mobile */
  button,
  select,
  input {
    min-height: 44px;
    min-width: 44px;
  }

  /* Improve readability on small screens */
  .arcade-font {
    font-weight: 600;
    letter-spacing: 0.5px;
  }
}

/* Smooth transitions for all interactive elements */
button,
select,
input {
  transition: all 0.2s ease-in-out;
}

/* Improve modal backdrop on mobile */
@media (max-width: 640px) {
  #how-to-play-modal {
    padding: 8px;
  }

  #how-to-play-modal > div {
    max-height: calc(100vh - 16px);
  }
}

/* Better mobile spacing for game elements */
@media (max-width: 1024px) {
  .board {
    border-radius: 16px;
    border-width: 3px;
  }

  .sidebar {
    border-radius: 12px;
  }
}

/* Additional mobile spacing improvements */
@media (max-width: 640px) {
  /* Increase spacing between sections in modal */
  .rules-content section + section {
    margin-top: 1.25rem;
  }

  /* Better spacing for modal content */
  #how-to-play-modal .rules-content {
    padding-top: 0.5rem;
    padding-bottom: 1rem;
  }

  /* Improve spacing between game area elements */
  #game-area .grid > div {
    margin-bottom: 0.75rem;
  }

  /* Better spacing for player setup elements */
  #player-setup form {
    gap: 1rem;
  }

  /* Improve button spacing in player setup */
  #player-setup .flex-col > div + div {
    margin-top: 0.75rem;
  }

  /* Better spacing for player input cards */
  #player-inputs > div {
    margin-bottom: 0.5rem;
  }
}

/* Simple heart pulse animation */
@keyframes heart-pulse {
  0%,
  70%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  35% {
    transform: scale(1.2);
    opacity: 0.8;
  }
}

/* Optimize text sizes for very small screens */
@media (max-width: 375px) {
  .arcade-font {
    font-size: clamp(10px, 3vw, 14px);
  }

  h1 {
    font-size: clamp(20px, 6vw, 24px);
  }

  h2 {
    font-size: clamp(16px, 5vw, 20px);
  }

  h3 {
    font-size: clamp(14px, 4vw, 18px);
  }

  /* Extra spacing for very small screens */
  .rules-content section {
    margin-bottom: 1.5rem !important;
  }

  #player-inputs {
    gap: 0.75rem !important;
  }
}