/* ---------- Base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

html, body, #app {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #fff;
  background: #1a2a1a;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#app {
  position: relative;
  height: 100dvh;
}

#app:fullscreen {
  width: 100vw;
  height: 100dvh;
  background: #0d1a0d;
}

button { font-family: inherit; cursor: pointer; border: none; }

/* ---------- Intro ---------- */
.intro-overlay {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(3, 8, 3, 0.12) 0%, rgba(3, 8, 3, 0.5) 100%),
    #000 url('assets/Birdle%20game%20poster.jpg') center / cover no-repeat;
  opacity: 1;
  transition: opacity .36s ease, visibility .36s ease;
}

.intro-overlay[hidden] {
  display: none;
}

.intro-overlay.is-hiding {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: transparent;
}

.intro-overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.08) 0%, rgba(0,0,0,0.48) 100%);
  pointer-events: none;
}

.intro-chrome {
  position: relative;
  z-index: 1;
  width: min(860px, 100%);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
}

.intro-copy {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

.intro-kicker {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(0,0,0,0.52);
  border: 1px solid rgba(255,255,255,0.14);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.intro-note {
  max-width: 340px;
  font-size: 14px;
  line-height: 1.4;
  color: rgba(255,255,255,0.84);
  text-shadow: 0 2px 12px rgba(0,0,0,0.45);
}

.intro-skip {
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  backdrop-filter: blur(10px);
}

.intro-skip:hover {
  background: rgba(255,255,255,0.18);
}

/* ---------- Screens ---------- */
.screen {
  position: absolute;
  inset: 0;
  display: none;
  overflow: hidden;
}
.screen.active { display: block; }

/* ---------- Start ---------- */
#screen-start .poster {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: #000;
}
.org-logo {
  position: absolute;
  top: max(18px, env(safe-area-inset-top));
  left: max(18px, env(safe-area-inset-left));
  height: clamp(88px, 16vh, 172px);
  width: auto;
  z-index: 3;
  background: rgba(255,255,255,0.95);
  padding: 8px 16px;
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}
.start-overlay {
  position: absolute;
  top: 0;
  bottom: max(18px, env(safe-area-inset-bottom));
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  padding: clamp(220px, 38vh, 320px) 16px 0;
  z-index: 2;
}
.start-overlay .hint {
  background: rgba(0,0,0,0.55);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.4px;
}

.start-bests {
  background: rgba(0,0,0,0.45);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  color: #ffd84a;
  letter-spacing: 0.3px;
  min-height: 1em;
}
.start-bests:empty { display: none; }

.start-leaderboard-high {
  max-width: min(520px, calc(100vw - 32px));
  min-height: 1em;
  font-size: 12px;
  line-height: 1.35;
  color: rgba(255,255,255,0.78);
  background: rgba(0,0,0,0.62);
  padding: 6px 14px;
  border-radius: 999px;
  text-align: center;
  text-shadow: 0 2px 12px rgba(0,0,0,0.5);
}

.leaderboard-card {
  width: min(420px, calc(100vw - 32px));
  background: rgba(8,16,8,0.74);
  border: 1px solid rgba(255,216,74,0.24);
  border-radius: 18px;
  padding: 14px 16px;
  box-shadow: 0 10px 26px rgba(0,0,0,0.34);
  backdrop-filter: blur(10px);
}

.leaderboard-card-start {
  max-height: min(240px, 32vh);
  overflow: auto;
}

.leaderboard-card-end {
  width: min(460px, 100%);
}

.leaderboard-heading {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.leaderboard-heading-icon {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(180deg,#ffd84a,#ffae00);
  color: #2a1a00;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 0 #8a5a00;
}

.leaderboard-heading-icon svg {
  width: 20px;
  height: 20px;
}

.leaderboard-heading h2 {
  font-size: 18px;
  line-height: 1.1;
}

.leaderboard-status {
  margin-top: 4px;
  min-height: 1em;
  font-size: 12px;
  color: rgba(255,255,255,0.72);
}

.leaderboard-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.leaderboard-entry {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
}

.leaderboard-rank {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 900;
  background: rgba(255,255,255,0.14);
}

.leaderboard-rank-1 {
  color: #2a1a00;
  background: linear-gradient(180deg,#ffd84a,#ffae00);
}

.leaderboard-rank-2 {
  color: #1a2433;
  background: linear-gradient(180deg,#f3f6fb,#a8b7c8);
}

.leaderboard-rank-3 {
  color: #2d1a12;
  background: linear-gradient(180deg,#f4c7a1,#b56c38);
}

.leaderboard-entry-main {
  min-width: 0;
}

.leaderboard-entry-name {
  font-size: 15px;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.leaderboard-entry-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
  font-size: 12px;
  color: rgba(255,255,255,0.72);
}

.leaderboard-entry-date {
  white-space: nowrap;
}

.leaderboard-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 999px;
  font-weight: 700;
}

.leaderboard-badge.regular {
  background: rgba(95,191,95,0.16);
  color: #d7ffd7;
}

.leaderboard-badge.expert {
  background: rgba(201,42,42,0.16);
  color: #ffd6d6;
}

.leaderboard-badge-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.leaderboard-badge-icon svg {
  width: 13px;
  height: 13px;
}

.leaderboard-entry-score {
  min-width: 52px;
  text-align: right;
  font-size: 24px;
  font-weight: 900;
  color: #ffd84a;
}

.start-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,0,0,0.45);
  padding: 6px 14px;
  border-radius: 999px;
}
.start-footer .link-btn { font-size: 12px; padding: 0; }
.start-footer .dot { opacity: 0.5; }

.start-feedback {
  font-size: 13px;
  color: #ffd84a;
  background: rgba(0,0,0,0.6);
  padding: 4px 12px;
  border-radius: 999px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .25s ease, transform .25s ease;
  min-height: 1em;
}
.start-feedback.show { opacity: 1; transform: translateY(0); }

.big-btn {
  background: linear-gradient(180deg,#ffd84a,#ffae00);
  color: #2a1a00;
  font-size: 22px;
  font-weight: 800;
  padding: 14px 36px;
  border-radius: 999px;
  box-shadow: 0 6px 0 #8a5a00, 0 12px 24px rgba(0,0,0,0.5);
  transition: transform .08s ease, box-shadow .08s ease;
  letter-spacing: 0.5px;
}
.big-btn:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 #8a5a00, 0 6px 12px rgba(0,0,0,0.5);
}

.big-btn.big-btn-small {
  font-size: 16px;
  padding: 10px 22px;
}

.link-btn {
  background: transparent;
  color: #fff;
  font-size: 14px;
  text-decoration: underline;
  opacity: 0.85;
}
.link-btn:hover { opacity: 1; }

/* ---------- Modal (difficulty + end) ---------- */
#screen-difficulty, #screen-end, #screen-howto {
  background: radial-gradient(ellipse at center, #2a4a2a 0%, #0d1a0d 100%);
}
.modal {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 24px;
  text-align: center;
}

#screen-end .modal {
  justify-content: flex-start;
  overflow-y: auto;
  padding-top: 32px;
  padding-bottom: 40px;
}
.modal h1 {
  font-size: clamp(28px, 5vw, 48px);
  text-shadow: 0 4px 0 rgba(0,0,0,0.4);
}
.diff-buttons {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
}
.diff-btn {
  background: linear-gradient(180deg,#5fbf5f,#2e8b2e);
  color: #fff;
  padding: 22px 28px;
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 220px;
  box-shadow: 0 6px 0 #1f5e1f, 0 12px 24px rgba(0,0,0,0.4);
  transition: transform .08s ease, box-shadow .08s ease;
}
.diff-btn.expert {
  background: linear-gradient(180deg,#ff7676,#c92a2a);
  box-shadow: 0 6px 0 #7a1717, 0 12px 24px rgba(0,0,0,0.4);
}
.diff-btn:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 #1f5e1f, 0 6px 12px rgba(0,0,0,0.4);
}
.diff-btn.expert:active {
  box-shadow: 0 2px 0 #7a1717, 0 6px 12px rgba(0,0,0,0.4);
}
.diff-title { font-size: 26px; font-weight: 800; }
.diff-sub { font-size: 13px; opacity: 0.9; }
.diff-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 4px;
}
.diff-icon svg { width: 100%; height: 100%; stroke: #fff; }

/* ---------- How To Play ---------- */
.howto-modal {
  gap: 16px;
  padding: 20px;
}
.howto-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 560px;
  width: 100%;
  text-align: left;
}
.howto-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: clamp(13px, 1.8vw, 16px);
  line-height: 1.35;
}
.howto-icon {
  flex: 0 0 36px;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(180deg,#5fbf5f,#2e8b2e);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 0 #1f5e1f;
}
.howto-icon svg { width: 20px; height: 20px; stroke: #fff; }
.timer-icon { background: linear-gradient(180deg,#ffd84a,#ffae00); box-shadow: 0 2px 0 #8a5a00; }
.pill {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9em;
  margin: 0 2px;
}
.pill-good { background: #2e8b2e; color: #fff; }
.pill-bad  { background: #c92a2a; color: #fff; }

.final { font-size: 22px; }
#final-score { font-size: 40px; font-weight: 800; color: #ffd84a; }
.rank {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin: 4px 0 8px;
}
.rank-icon {
  width: 56px;
  height: 56px;
  color: #ffd84a;
}
.rank-title {
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 900;
  letter-spacing: 0.5px;
  text-shadow: 0 3px 0 rgba(0,0,0,0.4);
}
.rank-sub {
  font-size: 14px;
  opacity: 0.9;
  max-width: 360px;
  text-align: center;
}
.stats { opacity: 0.85; font-size: 14px; }
.best { font-size: 14px; color: #ffd84a; min-height: 1em; }
.end-buttons { display: flex; gap: 16px; align-items: center; }

.leaderboard-submit {
  width: min(460px, 100%);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,216,74,0.26);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.leaderboard-submit-title {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #ffd84a;
}

.leaderboard-submit-message {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.4;
}

.leaderboard-submit-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.leaderboard-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
}

.leaderboard-form label {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.72);
}

.leaderboard-form-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
  flex-wrap: wrap;
}

.leaderboard-form input {
  flex: 1 1 220px;
  min-width: 0;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 15px;
  background: rgba(0,0,0,0.34);
  color: #fff;
}

.leaderboard-form input::placeholder {
  color: rgba(255,255,255,0.44);
}

.leaderboard-form input:focus {
  outline: 2px solid rgba(255,216,74,0.72);
  outline-offset: 2px;
  border-color: transparent;
}

.leaderboard-submit-feedback {
  min-height: 1em;
  font-size: 13px;
}

.leaderboard-submit-feedback.info { color: #ffd84a; }
.leaderboard-submit-feedback.success { color: #9cffb8; }
.leaderboard-submit-feedback.error { color: #ff9e9e; }

.sfbbo-plug {
  margin-top: 18px;
  padding: 16px 20px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,216,74,0.35);
  border-radius: 14px;
  max-width: 460px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.sfbbo-line {
  font-size: 14px;
  line-height: 1.45;
  opacity: 0.95;
}
.sfbbo-line strong { color: #ffd84a; }
.sfbbo-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 10px 18px;
  background: linear-gradient(180deg,#5fbf5f,#2e8b2e);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border-radius: 999px;
  box-shadow: 0 4px 0 #1f5e1f, 0 8px 16px rgba(0,0,0,0.4);
  transition: transform .08s ease, box-shadow .08s ease;
}
.sfbbo-link:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #1f5e1f, 0 4px 8px rgba(0,0,0,0.4);
}
.sfbbo-link svg { width: 16px; height: 16px; }

/* ---------- Game ---------- */
#screen-game { background: #0d1a0d; }

#backdrop {
  position: absolute;
  inset: 0;
  background-image: url('assets/backdrop.jpg');
  background-size: cover;
  background-position: center;
}

/* Top-down darkening gradient: ~35% darker over the canopy, fading out lower.
   Helps birds pop against the foliage without muddying the play area. */
#backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.35) 0%,
    rgba(0, 0, 0, 0.22) 30%,
    rgba(0, 0, 0, 0.08) 60%,
    rgba(0, 0, 0, 0) 85%
  );
  pointer-events: none;
  z-index: 1;
}

/* Subtle radial vignette to focus attention on the play area. */
#backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 0, 0, 0) 55%,
    rgba(0, 0, 0, 0.18) 80%,
    rgba(0, 0, 0, 0.38) 100%
  );
  pointer-events: none;
  z-index: 1;
}

#bird-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* HUD */
#hud {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  display: flex;
  gap: 10px;
  align-items: center;
  z-index: 5;
  flex-wrap: wrap;
}
.hud-item {
  background: rgba(0,0,0,0.55);
  padding: 8px 14px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 64px;
}
.hud-item .lbl {
  font-size: 10px;
  letter-spacing: 1px;
  opacity: 0.7;
  text-transform: uppercase;
}
.hud-item span:last-child {
  font-size: 22px;
  font-weight: 800;
}
#combo.hot { color: #ffd84a; text-shadow: 0 0 12px #ffae00; }
#hud .quit { margin-left: auto; }

/* Binoculars */
#binoculars {
  position: absolute;
  bottom: -3vh;
  left: 50%;
  transform: translateX(-50%);
  height: 22vh;
  max-height: 180px;
  pointer-events: none;
  z-index: 4;
  filter: drop-shadow(0 -6px 12px rgba(0,0,0,0.6));
}

/* Bird buttons */
#bird-buttons {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  padding: 0 max(8px, env(safe-area-inset-right)) 0 max(8px, env(safe-area-inset-left));
  z-index: 6;
}
.bird-btn {
  background: rgba(255,255,255,0.92);
  color: #1a2a1a;
  touch-action: manipulation;
  border-radius: 12px;
  padding: 6px 4px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 11px;
  font-weight: 700;
  box-shadow: 0 3px 0 rgba(0,0,0,0.3);
  transition: transform .08s ease, box-shadow .08s ease, background .15s;
  min-height: 64px;
}
.bird-btn img {
  height: 36px;
  width: auto;
  pointer-events: none;
  object-fit: contain;
}
.bird-btn:active { transform: translateY(2px); box-shadow: 0 1px 0 rgba(0,0,0,0.3); }
.bird-btn.flash-correct { background: #7fdc7f; animation: flash .35s ease; }
.bird-btn.flash-wrong   { background: #ff7676; animation: shake .35s ease; }

@keyframes flash {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.08); }
  100% { transform: scale(1); }
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* Birds */
.bird {
  position: absolute;
  pointer-events: none;
  transform-origin: center;
  filter: drop-shadow(0 4px 6px rgba(0,0,0,0.45));
  animation: birdIn .35s ease both;
  will-change: transform, opacity;
}
.bird.leaving { animation: birdOut .35s ease both; }
.bird.caught  { animation: birdCaught .45s ease both; }
.bird img { width: 100%; height: 100%; object-fit: contain; pointer-events: none; }
.bird.flip img { transform: scaleX(-1); }

@keyframes birdIn {
  from { opacity: 0; transform: scale(0.6) translateY(-8px); }
  to   { opacity: 1; transform: scale(1)   translateY(0); }
}
@keyframes birdOut {
  from { opacity: 1; transform: scale(1); }
  to   { opacity: 0; transform: scale(0.85); }
}
@keyframes birdCaught {
  0%   { opacity: 1; transform: scale(1); }
  60%  { opacity: 1; transform: scale(1.25) rotate(8deg); }
  100% { opacity: 0; transform: scale(0.4) translateY(-30px) rotate(-12deg); }
}

/* Floating score popups */
.popup {
  position: absolute;
  font-size: 22px;
  font-weight: 900;
  pointer-events: none;
  text-shadow: 0 2px 4px rgba(0,0,0,0.6);
  animation: popup 0.9s ease-out forwards;
  z-index: 7;
}
.popup.plus  { color: #7fffa1; }
.popup.minus { color: #ff8a8a; }
@keyframes popup {
  0%   { opacity: 0; transform: translate(-50%, 0) scale(0.6); }
  20%  { opacity: 1; transform: translate(-50%, -10px) scale(1.1); }
  100% { opacity: 0; transform: translate(-50%, -60px) scale(1); }
}

#popup-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 7;
}

/* Small screens: shrink bird buttons grid into 2 rows */
@media (max-width: 520px) {
  .intro-overlay {
    padding: 16px;
  }
  .start-overlay {
    padding-top: clamp(300px, 46vh, 420px);
  }
  .intro-chrome {
    flex-direction: column;
    align-items: stretch;
  }
  .intro-note {
    max-width: none;
  }
  .intro-skip {
    width: 100%;
  }
  #bird-buttons {
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
  }
  .bird-btn { font-size: 11px; min-height: 44px; padding: 6px 4px; }
  /* Hide bird thumbnails on small screens — names only */
  .bird-btn img { display: none; }
  #binoculars { height: 18vh; }
  .leaderboard-entry {
    grid-template-columns: 32px minmax(0, 1fr) auto;
    gap: 8px;
    padding: 8px 10px;
  }
  .leaderboard-rank {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  .leaderboard-entry-score {
    min-width: 42px;
    font-size: 19px;
  }
  .leaderboard-form-row {
    flex-direction: column;
  }
  .leaderboard-form input,
  .leaderboard-form .big-btn {
    width: 100%;
  }
}

/* Expert mode: names-only buttons regardless of screen size */
#screen-game.expert .bird-btn img { display: none; }
#screen-game.expert .bird-btn {
  min-height: 44px;
  padding: 8px 4px;
  font-size: 12px;
}

@media (orientation: landscape) and (max-height: 520px) {
  .org-logo {
    top: max(8px, env(safe-area-inset-top));
    left: max(8px, env(safe-area-inset-left));
    height: clamp(60px, 16vh, 88px);
    padding: 6px 12px;
    border-radius: 14px;
  }
  .start-overlay {
    top: 0;
    bottom: max(8px, env(safe-area-inset-bottom));
    gap: 8px;
    padding-top: clamp(92px, 22vh, 132px);
  }
  .start-overlay .hint {
    max-width: calc(100vw - 32px);
    padding: 5px 12px;
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .start-overlay .big-btn {
    font-size: 18px;
    padding: 10px 28px;
  }
  .leaderboard-card-start {
    width: min(480px, calc(100vw - 32px));
    max-height: min(162px, 42vh);
    padding: 10px 12px;
  }
  .leaderboard-card-start .leaderboard-heading-icon {
    flex-basis: 36px;
    width: 36px;
    height: 36px;
    border-radius: 10px;
  }
  .leaderboard-card-start .leaderboard-heading h2 {
    font-size: 16px;
  }
  .leaderboard-card-start .leaderboard-status {
    font-size: 11px;
  }
  .leaderboard-card-start .leaderboard-list {
    gap: 6px;
    margin-top: 8px;
  }
  .leaderboard-card-start .leaderboard-entry {
    grid-template-columns: 32px minmax(0, 1fr) auto;
    padding: 7px 10px;
  }
  .leaderboard-card-start .leaderboard-rank {
    width: 32px;
    height: 32px;
  }
  .leaderboard-card-start .leaderboard-entry-score {
    font-size: 20px;
  }
  .start-footer {
    padding: 4px 12px;
  }
  #bird-buttons { grid-template-columns: repeat(10, 1fr); }
  .bird-btn img { display: none; }
  .bird-btn { min-height: 40px; font-size: 11px; padding: 6px 4px; }
  #binoculars { height: 16vh; }
}

/* ---------- Countdown overlay ---------- */
#countdown {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  z-index: 8;
  pointer-events: none;
  background: radial-gradient(circle at center, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0) 70%);
}
#countdown.hidden { display: none; }
#countdown-num {
  font-size: clamp(80px, 18vw, 180px);
  font-weight: 900;
  color: #ffd84a;
  text-shadow: 0 6px 24px rgba(0,0,0,0.7), 0 0 40px rgba(255,174,0,0.6);
  animation: countPop 1s ease forwards;
}
#countdown-sub {
  font-size: clamp(14px, 2.5vw, 22px);
  background: rgba(0,0,0,0.55);
  padding: 6px 16px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}
@keyframes countPop {
  0%   { transform: scale(0.5); opacity: 0; }
  20%  { transform: scale(1.15); opacity: 1; }
  80%  { transform: scale(1);    opacity: 1; }
  100% { transform: scale(0.85); opacity: 0; }
}

/* During countdown hide bird-name buttons so binoculars are clearly visible.
   Binoculars stay in their normal gameplay position so nothing shifts when
   the buttons appear. */
#screen-game.countdown #bird-buttons { opacity: 0; pointer-events: none; }
#bird-buttons { transition: opacity .3s ease; }

/* ---------- Rotate-device overlay (portrait phones/tablets only) ---------- */
#rotate-overlay {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 9999;
  background: linear-gradient(180deg, #0d1a0d, #2a4a2a);
  color: #fff;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
}
.rotate-inner { max-width: 360px; }
.rotate-icon {
  font-size: 64px;
  margin-bottom: 16px;
  animation: spin 2.4s ease-in-out infinite;
  display: inline-block;
}
#rotate-overlay h2 { font-size: 24px; margin-bottom: 8px; }
#rotate-overlay p  { opacity: 0.85; font-size: 15px; }
@keyframes spin {
  0%, 40%   { transform: rotate(0deg); }
  60%, 100% { transform: rotate(90deg); }
}
/* Show only on touch devices in portrait */
@media (orientation: portrait) and (pointer: coarse) {
  #rotate-overlay { display: flex; }
}

/* ---------- Training screen ---------- */
#screen-training { background: #0d1a0d; }

#training-backdrop {
  position: absolute;
  inset: 0;
  background-image: url('assets/backdrop.jpg');
  background-size: cover;
  background-position: center;
}
#training-backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.45) 0%,
    rgba(0,0,0,0.28) 35%,
    rgba(0,0,0,0.10) 65%,
    rgba(0,0,0,0)    90%
  );
  pointer-events: none;
}
#training-bird-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

#training-banner {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  background: rgba(0,0,0,0.65);
  border: 1px solid rgba(255,216,74,0.4);
  border-radius: 14px;
  padding: 10px 18px;
  text-align: center;
  max-width: min(560px, 90%);
}
.training-step {
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #ffd84a;
  opacity: 0.9;
  margin-bottom: 4px;
}
.training-msg {
  font-size: clamp(13px, 2vw, 16px);
  line-height: 1.35;
}

#training-buttons {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  padding: 0 8px;
  z-index: 6;
}

.training-footer {
  position: absolute;
  top: 10px;
  right: 12px;
  z-index: 7;
}

/* Glowing hint ring on the correct button during training */
.bird-btn.hint-glow {
  box-shadow:
    0 3px 0 rgba(0,0,0,0.3),
    0 0 0 3px #ffd84a,
    0 0 22px 4px rgba(255,174,0,0.7);
  animation: hintPulse 1.1s ease-in-out infinite;
}
@keyframes hintPulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}

/* Re-use bird-btn small-screen rules in training */
@media (max-width: 520px) {
  #training-buttons { gap: 4px; }
}
@media (orientation: landscape) and (max-height: 520px) {
  #training-buttons { grid-template-columns: repeat(10, 1fr); }
}