/* ── Summer Stars — shared styles ─────────────────────────────────────── */

:root {
  --bg-1: #1b2a4a;
  --bg-2: #4a1d6e;
  --card: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.14);
  --text: #f5f7ff;
  --muted: #b9c2e0;
  --accent: #ffd34d;
  --accent-2: #7cc4ff;
  --gold: #ffd34d;
  --silver: #d7dde8;
  --bronze: #e0935a;
  --danger: #ff6b6b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, #2a3f6b 0%, transparent 60%),
    radial-gradient(1000px 700px at 100% 0%, #5a2480 0%, transparent 55%),
    linear-gradient(160deg, var(--bg-1), var(--bg-2));
  background-attachment: fixed;
}

.wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

header.page {
  text-align: center;
  margin-bottom: 28px;
}

header.page h1 {
  font-size: clamp(28px, 6vw, 44px);
  margin: 0 0 6px;
  letter-spacing: 0.5px;
}

header.page h1 .star {
  color: var(--accent);
  display: inline-block;
  animation: spin-star 3s linear infinite;
}

@keyframes spin-star {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  header.page h1 .star { animation: none; }
}

header.page p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
}

.nav a {
  color: var(--accent-2);
  text-decoration: none;
  font-size: 14px;
  border: 1px solid var(--card-border);
  padding: 7px 14px;
  border-radius: 999px;
  transition: background 0.15s ease;
}
.nav a:hover { background: var(--card); }

.nav .langtoggle {
  width: auto;
  margin: 0;
  padding: 7px 14px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 999px;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 22px;
  backdrop-filter: blur(6px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

.card + .card { margin-top: 20px; }

/* ── Leaderboard table ────────────────────────────────────────────────── */

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 14px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
}

td.rank { width: 56px; font-weight: 700; font-size: 18px; }
td.name { font-size: 17px; }
td.stars { text-align: right; font-weight: 700; font-size: 17px; white-space: nowrap; }

/* ── Top-3 medal animations ───────────────────────────────────────────── */
tr.top-1 td.rank { color: var(--gold);   animation: glow-gold   2.4s ease-in-out infinite; }
tr.top-2 td.rank { color: var(--silver); animation: glow-silver 2.4s ease-in-out infinite; }
tr.top-3 td.rank { color: var(--bronze); animation: glow-bronze 2.4s ease-in-out infinite; }

/* Twinkling sparkle after the name — brightest for 1st, faint for 3rd.
   --spark sets each row's peak intensity; the twinkle keeps that ratio. */
tr.top-1 { --spark: 1; }
tr.top-2 { --spark: 0.55; }
tr.top-3 { --spark: 0.25; }

tr.top-1 td.name::after,
tr.top-2 td.name::after,
tr.top-3 td.name::after {
  content: " ✨";
  display: inline-block;
  margin-left: 6px;
  animation: twinkle 1.8s ease-in-out infinite;
}
tr.top-2 td.name::after { animation-duration: 2.2s; }
tr.top-3 td.name::after { animation-duration: 2.6s; }

/* A medal badge that gently pops in front of the rank number. */
tr.top-1 td.rank::before,
tr.top-2 td.rank::before,
tr.top-3 td.rank::before {
  margin-right: 6px;
  display: inline-block;
  animation: medal-pop 2.4s ease-in-out infinite;
}
tr.top-1 td.rank::before { content: "🥇"; }
tr.top-2 td.rank::before { content: "🥈"; }
tr.top-3 td.rank::before { content: "🥉"; }

/* Gold winner row gets an animated shimmer sweep. */
tr.top-1 {
  background-image: linear-gradient(
    100deg,
    rgba(255, 211, 77, 0.05) 0%,
    rgba(255, 211, 77, 0.22) 50%,
    rgba(255, 211, 77, 0.05) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 3.5s linear infinite;
}
tr.top-2 { background: rgba(215, 221, 232, 0.07); }
tr.top-3 { background: rgba(224, 147, 90, 0.07); }

@keyframes glow-gold {
  0%, 100% { text-shadow: 0 0 5px rgba(255, 211, 77, 0.45); }
  50%      { text-shadow: 0 0 16px rgba(255, 211, 77, 0.95); }
}
@keyframes glow-silver {
  0%, 100% { text-shadow: 0 0 5px rgba(215, 221, 232, 0.45); }
  50%      { text-shadow: 0 0 16px rgba(215, 221, 232, 0.95); }
}
@keyframes glow-bronze {
  0%, 100% { text-shadow: 0 0 5px rgba(224, 147, 90, 0.45); }
  50%      { text-shadow: 0 0 14px rgba(224, 147, 90, 0.9); }
}
@keyframes medal-pop {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50%      { transform: scale(1.25) rotate(-6deg); }
}
@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}
@keyframes twinkle {
  0%, 100% { opacity: calc(var(--spark) * 0.25); transform: scale(0.8) rotate(0deg); }
  50%      { opacity: var(--spark);              transform: scale(1.25) rotate(18deg); }
}

@media (prefers-reduced-motion: reduce) {
  tr.top-1 td.rank, tr.top-2 td.rank, tr.top-3 td.rank,
  tr.top-1, tr.top-1 td.rank::before, tr.top-2 td.rank::before,
  tr.top-3 td.rank::before,
  tr.top-1 td.name::after, tr.top-2 td.name::after,
  tr.top-3 td.name::after { animation: none; }
  tr.top-1 td.name::after { opacity: 1; }
  tr.top-2 td.name::after { opacity: 0.55; }
  tr.top-3 td.name::after { opacity: 0.25; }
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 28px 0;
}

/* ── Forms ────────────────────────────────────────────────────────────── */

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin: 14px 0 6px;
}

input {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: rgba(0, 0, 0, 0.18);
  color: var(--text);
}
input:focus { outline: 2px solid var(--accent-2); border-color: transparent; }

.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > div { flex: 1; min-width: 140px; }

/* ── Stars stepper (− value +) ─────────────────────────────────────────── */
.stepper {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--card-border);
  background: rgba(0, 0, 0, 0.18);
  border-radius: 10px;
  padding: 5px;
}
.stepper button {
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  flex: 0 0 auto;
  -webkit-appearance: none;
  appearance: none;
  align-items: center;
  font-size: 24px;
  line-height: 1;
  border-radius: 8px;
}
.stepper span {
  flex: 1;
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

button {
  margin-top: 18px;
  width: 100%;
  display: flex;
  justify-content: center;
  box-sizing: border-box;
  padding: 1rem 1.75rem;
  font-size: 16px;
  font-weight: 700;
  border: 0;
  border-radius: 0.5rem;
  background-image: linear-gradient(-180deg, #37AEE2 0%, #1E96C8 100%);
  color: #FFFFFF;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  transition: transform 0.08s ease, background-image 0.15s ease, filter 0.15s ease;
}
button:hover {
  background-image: linear-gradient(-180deg, #1D95C9 0%, #17759C 100%);
}
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.6; cursor: not-allowed; }

@media (min-width: 768px) {
  button { padding: 1rem 2rem; }
}

/* ── button-43 (explicit) ──────────────────────────────────────────────── */
.button-43 {
  background-image: linear-gradient(-180deg, #37AEE2 0%, #1E96C8 100%);
  border-radius: .5rem;
  box-sizing: border-box;
  color: #FFFFFF;
  display: flex;
  font-size: 16px;
  justify-content: center;
  padding: 1rem 1.75rem;
  text-decoration: none;
  width: 100%;
  border: 0;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}
.button-43:hover {
  background-image: linear-gradient(-180deg, #1D95C9 0%, #17759C 100%);
}
@media (min-width: 768px) {
  .button-43 { padding: 1rem 2rem; }
}

button.ghost {
  border: 1px solid var(--card-border);
}

button.tiny {
  width: auto;
  margin: 0;
  padding: 6px 10px;
  font-size: 13px;
}

.msg {
  margin-top: 14px;
  padding: 11px 14px;
  border-radius: 10px;
  font-size: 14px;
  display: none;
}
.msg.show { display: block; }
.msg.ok { background: rgba(124, 196, 255, 0.15); color: #cfe7ff; }
.msg.err { background: rgba(255, 107, 107, 0.15); color: #ffd0d0; }

.bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.bar h2 { margin: 0; font-size: 18px; }
.bar button { width: auto; margin: 0; }

.hint { color: var(--muted); font-size: 13px; margin-top: 4px; }