:root {
  --bg-top: #eaf4fb;
  --bg-bottom: #c8e2f5;
  --panel: rgba(243, 250, 255, 0.94);
  --ink: #1a3448;
  --muted: #42637a;
  --correct: #4a8fce;
  --present: #c9950e;
  --absent: #ccd0c8;
  --key-bg: #cde4f4;
  --key-text: #1a3448;
  --accent: #3a7cb0;
}

* {
  box-sizing: border-box;
}

button, .tile, .key {
  touch-action: manipulation;
}

.hidden { display: none !important; }

body {
  margin: 0;
  height: 100dvh;
  overflow: hidden;
  font-family: "Nunito", sans-serif;
  color: var(--ink);
  background: linear-gradient(155deg, var(--bg-top), var(--bg-bottom));
  display: flex;
  align-items: center;
  justify-content: center;
}

.bg-shape {
  position: fixed;
  border-radius: 50%;
  filter: blur(2px);
  pointer-events: none;
}

.shape-1 {
  width: 340px;
  height: 340px;
  background: radial-gradient(circle at 30% 30%, #a8d4f0, transparent 72%);
  top: -110px;
  left: -80px;
  animation: driftA 9s ease-in-out infinite alternate;
}

.shape-2 {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle at 70% 70%, #7bbce0, transparent 72%);
  bottom: -150px;
  right: -100px;
  animation: driftB 11s ease-in-out infinite alternate;
}

@keyframes driftA {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(24px, 12px) scale(1.08); }
}

@keyframes driftB {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(-22px, -10px) scale(0.95); }
}

.app {
  display: flex;
  flex-direction: column;
  width: min(94vw, 500px);
  background: var(--panel);
  border: 1px solid rgba(58, 124, 176, 0.18);
  border-radius: 20px;
  box-shadow: 0 18px 44px rgba(26, 52, 72, 0.18);
  padding: 0.5rem 0.8rem 0.6rem;
  backdrop-filter: blur(3px);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  position: relative;
}

.topbar-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.1rem;
  flex-shrink: 0;
}

.flower {
  width: clamp(52px, 12vw, 72px);
  height: auto;
  flex-shrink: 0;
  pointer-events: none;
  user-select: none;
}

.flower-right {
  transform: scaleX(-1);
}

h1 {
  margin: 0;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(2rem, 4.6vw, 2.8rem);
  letter-spacing: 0.08em;
  color: var(--accent);
  text-align: center;
  flex: 1;
}

.status-wrap {
  margin: 0.15rem 0 0.3rem;
  min-height: 1.2rem;
  flex-shrink: 0;
}

#statusText {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.board {
  display: grid;
  grid-template-rows: repeat(6, var(--tile-size, 58px));
  gap: 5px;
}

.row {
  display: grid;
  grid-template-columns: repeat(5, var(--tile-size, 58px));
  gap: 5px;
  justify-content: center;
}

.tile {
  width: var(--tile-size, 58px);
  height: var(--tile-size, 58px);
  border: 2px solid #c5daea;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: var(--tile-font, clamp(1.5rem, 5vw, 2.2rem));
  font-weight: 800;
  text-transform: uppercase;
  background: #fff;
  transition: background 150ms ease, border-color 150ms ease;
}

.tile.filled {
  border-color: #6aaad4;
}

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

.tile.present {
  background: var(--present);
  border-color: var(--present);
  color: #fff;
}

.tile.absent {
  background: var(--absent);
  border-color: #a8aea4;
  color: var(--ink);
}

.keyboard {
  margin-top: 0.45rem;
  display: grid;
  gap: 0.28rem;
  flex-shrink: 0;
}

.key-row {
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  gap: 0.28rem;
}

.key {
  grid-column: span 2;
  min-height: clamp(28px, 4.5vh, 38px);
  border: none;
  border-radius: 8px;
  background: var(--key-bg);
  color: var(--key-text);
  font-weight: 800;
  font-size: 0.8rem;
  cursor: pointer;
}

.key.wide {
  grid-column: span 3;
  font-size: 0.75rem;
}

.key.correct { background: var(--correct); color: #fff; }
.key.present { background: var(--present); color: #fff; }
.key.absent  { background: var(--absent);  color: var(--ink); }

.actions {
  margin-top: 0.45rem;
  display: flex;
  justify-content: center;
  flex-shrink: 0;
}

.solid-btn,
.ghost-btn {
  border-radius: 999px;
  border: 1px solid #7ab4d8;
  font-family: "Nunito", sans-serif;
  font-weight: 800;
  cursor: pointer;
}

.solid-btn {
  background: var(--accent);
  color: #fff;
  padding: 0.55rem 1rem;
}

.ghost-btn {
  background: transparent;
  color: var(--accent);
  padding: 0.45rem 0.85rem;
}

.modal {
  border: 1px solid #92c4e4;
  border-radius: 16px;
  width: min(92vw, 420px);
  box-shadow: 0 16px 40px rgba(26, 52, 72, 0.32);
  padding: 1rem 1rem 1.1rem;
  text-align: center;
}

.modal::backdrop {
  background: rgba(20, 44, 68, 0.5);
}

.modal-flower {
  width: 90px;
  height: auto;
  display: block;
  margin: 0 auto 0.4rem;
}

.modal h2 {
  margin: 0;
  font-family: "Cormorant Garamond", serif;
  font-size: 2rem;
  color: var(--accent);
}

.modal p {
  margin: 0.5rem 0 0.4rem;
}

.modal ul {
  margin: 0.4rem 0 0.9rem;
  padding-left: 0;
  list-style: none;
  text-align: left;
  display: inline-block;
}

.modal ul li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.35rem;
}

.swatch {
  display: inline-block;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  flex-shrink: 0;
}

.swatch-correct { background: var(--correct); }
.swatch-present { background: var(--present); }
.swatch-absent  { background: var(--absent); }

/* ── Instructions examples ────────────────────── */

.rules-list {
  margin: 0.3rem 0 0.5rem;
  padding-left: 1.2rem;
  text-align: left;
  list-style: disc;
}

.rules-list li { margin-bottom: 0.2rem; }

.modal-divider {
  border: none;
  border-top: 1px solid #b8d4e8;
  margin: 0.55rem 0;
}

.examples-label {
  margin: 0.3rem 0 0.5rem;
  text-align: left;
  font-size: 1rem;
}

.ex-row {
  display: flex;
  gap: 4px;
  margin-bottom: 0.3rem;
}

.ex-tile {
  width: 38px;
  height: 38px;
  border: 2px solid #c5daea;
  border-radius: 6px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.1rem;
  text-transform: uppercase;
  background: #fff;
  color: var(--ink);
  flex-shrink: 0;
}

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

.ex-present {
  background: var(--present);
  border-color: var(--present);
  color: #fff;
}

.ex-absent {
  background: var(--absent);
  border-color: #a8aea4;
  color: var(--ink);
}

.ex-desc {
  margin: 0 0 0.75rem;
  text-align: left;
  font-size: 0.9rem;
  line-height: 1.4;
}

@media (max-width: 520px) {
  .key {
    font-size: 0.75rem;
  }

  .key.wide {
    font-size: 0.62rem;
  }
}

/* ── Animations ───────────────────────────────── */

@keyframes tile-flip {
  0%   { transform: scaleY(1); }
  50%  { transform: scaleY(0); }
  100% { transform: scaleY(1); }
}

@keyframes tile-pop {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.14); }
}

@keyframes tile-bounce {
  0%, 100% { transform: translateY(0) scaleY(1); }
  50%       { transform: translateY(-16px) scaleY(0.94); }
}

@keyframes row-shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-8px); }
  40%       { transform: translateX(8px); }
  60%       { transform: translateX(-5px); }
  80%       { transform: translateX(5px); }
}

.tile.flipping {
  animation: tile-flip 420ms ease-in-out;
}

.tile.pop {
  animation: tile-pop 110ms ease;
}

.tile.bounce {
  animation: tile-bounce 650ms ease-in-out infinite;
}

.row.shake {
  animation: row-shake 420ms ease;
}

/* ── Celebration ───────────────────────────── */

@keyframes confetti-burst {
  0% {
    transform: translate(0, 0) rotate(0deg) scale(1);
    opacity: 1;
  }
  65% { opacity: 1; }
  100% {
    transform: translate(var(--tx), var(--ty)) rotate(var(--rot)) scale(0.5);
    opacity: 0;
  }
}

@keyframes dove-fly {
  0%   { transform: translate(0, 0) scale(0.7); opacity: 0; }
  12%  { opacity: 1; }
  100% { transform: translate(var(--tx), var(--ty)) scale(1.8); opacity: 0; }
}

.confetti-piece {
  position: fixed;
  width: var(--size, 8px);
  height: var(--size, 8px);
  border-radius: var(--brad, 2px);
  background: var(--color, #3a7cb0);
  pointer-events: none;
  z-index: 9999;
  animation: confetti-burst var(--dur, 1s) ease-out forwards;
  animation-delay: var(--delay, 0ms);
}

.dove {
  position: fixed;
  font-size: var(--fs, 1.5rem);
  pointer-events: none;
  z-index: 9999;
  line-height: 1;
  animation: dove-fly var(--dur, 1.2s) ease-out forwards;
  animation-delay: var(--delay, 0ms);
}

/* ── Mode selection screen ─────────────────────────────────── */

.screen-mode {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(155deg, var(--bg-top), var(--bg-bottom));
  z-index: 50;
  padding: 1.5rem 1rem;
  gap: 0.4rem;
}

.screen-mode.hidden { display: none !important; }

.mode-flowers {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.2rem;
}

.mode-flower-img {
  width: clamp(60px, 16vw, 100px);
  height: auto;
}

.mode-flower-r { transform: scaleX(-1); }

.mode-title {
  margin: 0;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(2.4rem, 7vw, 3.6rem);
  letter-spacing: 0.07em;
  color: var(--accent);
}

.mode-subtitle {
  margin: 0 0 1rem;
  color: var(--muted);
  font-weight: 700;
  font-size: 1rem;
}

.mode-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  width: min(94vw, 420px);
}

.mode-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  border: none;
  border-radius: 16px;
  padding: 1.1rem 1.4rem;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.mode-btn:hover { transform: translateY(-2px); }

.mode-btn-icon  { font-size: 1.8rem; line-height: 1; }
.mode-btn-label { font-family: "Cormorant Garamond", serif; font-size: 1.45rem; font-weight: 700; color: var(--ink); }
.mode-btn-desc  { font-size: 0.78rem; font-weight: 700; opacity: 0.7; color: var(--ink); }

.mode-btn-challenge {
  background: linear-gradient(145deg, #c8e4f6, #a0ceee);
  box-shadow: 0 6px 20px rgba(74, 143, 206, 0.28);
}

.mode-btn-endless {
  background: linear-gradient(145deg, #e8f0e0, #cde4c0);
  box-shadow: 0 6px 20px rgba(78, 134, 32, 0.18);
}

.mode-back-main {
  margin-top: 1rem;
  text-decoration: none;
}

/* ── Challenge header (in-game) ───────────────────────────── */

.challenge-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.25rem 0;
  flex-shrink: 0;
}

.puzzle-label {
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--muted);
}

.progress-dots { display: flex; gap: 6px; }

.progress-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid #a0b8cc;
  background: transparent;
}

.progress-dot.dot-active {
  border-color: var(--accent);
  background: var(--accent);
  animation: pulse-dot 1s ease-in-out infinite;
}

.progress-dot.dot-done   { border-color: var(--correct); background: var(--correct); }
.progress-dot.dot-failed { border-color: #c0392b;        background: #c0392b; }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.45; }
}

.timer-display {
  font-family: "Courier New", monospace;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 5ch;
  text-align: right;
}

/* ── Results & leaderboard screen ─────────────────────────── */

.screen-results {
  position: fixed;
  inset: 0;
  background: linear-gradient(155deg, var(--bg-top), var(--bg-bottom));
  z-index: 50;
  overflow-y: auto;
  padding: 1.5rem 1rem 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.results-title {
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  color: var(--accent);
  margin: 0 0 0.8rem;
  text-align: center;
}

.results-table {
  border-collapse: collapse;
  width: min(94vw, 460px);
  margin-bottom: 1rem;
  background: rgba(255,255,255,0.7);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(26,52,72,0.1);
}

.results-table th,
.results-table td {
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid #cde4f4;
  text-align: center;
  font-size: 0.9rem;
}

.results-table th { background: var(--key-bg); color: var(--muted); font-size: 0.78rem; }
.results-total td { background: rgba(74,143,206,0.07); }
.cell-fail { color: #c0392b; font-weight: 800; }

.submit-section {
  width: min(94vw, 460px);
  margin-bottom: 1.2rem;
  text-align: center;
}

.submit-label { margin: 0 0 0.5rem; font-weight: 700; color: var(--muted); font-size: 0.9rem; }

.submit-row { display: flex; gap: 0.5rem; justify-content: center; }

.name-input {
  border: 2px solid #92c4e4;
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-family: "Nunito", sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink);
  background: #fff;
  flex: 1;
  max-width: 220px;
  outline: none;
}

.name-input:focus { border-color: var(--accent); }
.lb-status { margin: 0.4rem 0 0; font-size: 0.82rem; color: #c0392b; min-height: 1rem; }

.lb-heading {
  font-family: "Cormorant Garamond", serif;
  font-size: 1.6rem;
  margin: 0 0 0.6rem;
  color: var(--accent);
  text-align: center;
}

#leaderboardContainer { width: min(94vw, 600px); }

.leaderboard-table {
  border-collapse: collapse;
  width: 100%;
  background: rgba(255,255,255,0.8);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(26,52,72,0.1);
  font-size: 0.8rem;
}

.leaderboard-table th,
.leaderboard-table td {
  padding: 0.38rem 0.5rem;
  border-bottom: 1px solid #cde4f4;
  text-align: center;
}

.leaderboard-table th { background: var(--key-bg); color: var(--muted); font-size: 0.72rem; }
.lb-top td { background: rgba(74,143,206,0.1); font-weight: 800; }
.lb-name { text-align: left; font-weight: 700; }
.lb-time { font-size: 0.7rem; opacity: 0.75; }
.lb-loading { color: var(--muted); font-style: italic; }
.lb-back { margin-top: 1.2rem; }