:root {
  --bg: #eef1f8;
  --bg2: #ffffff;
  --card: #ffffff;
  --ink: #1b1d2b;
  --muted: #6b6f86;
  --line: #e2e5f0;
  --accent: #f0b429;       /* gold — buttons */
  --stress: #b06a00;       /* dark gold — stressed syllable (readable on white) */
  --accent2: #0d9e6a;      /* green — play / hint */
  --radius: 18px;
  --shadow: 0 10px 30px rgba(40, 45, 90, 0.10);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, var(--bg2), var(--bg));
  color: var(--ink);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.topbar { text-align: center; padding: 28px 16px 8px; }
.brand { display: flex; align-items: center; justify-content: center; gap: 10px; }
.logo { font-size: 30px; }
h1 { font-size: 26px; margin: 0; letter-spacing: -0.5px; }
.tagline { color: var(--muted); margin: 6px 0 0; font-size: 13px; }

main { max-width: 620px; margin: 0 auto; padding: 16px; }

.search { display: flex; gap: 10px; margin: 12px 0 18px; }
.search input {
  flex: 1; padding: 16px 18px; font-size: 18px; border-radius: 14px;
  border: 1px solid var(--line); background: #fff; color: var(--ink); outline: none;
  box-shadow: var(--shadow);
}
.search input:focus { border-color: var(--accent); }
.search button {
  padding: 0 22px; font-size: 16px; font-weight: 700; border: none; cursor: pointer;
  border-radius: 14px; background: var(--accent); color: #4a3400;
}
.search button:active { transform: translateY(1px); }

.card {
  background: var(--card); border-radius: var(--radius); padding: 22px;
  box-shadow: var(--shadow); border: 1px solid var(--line); margin-bottom: 22px;
}
.card.hidden { display: none; }

.card .word { font-size: 30px; font-weight: 700; margin: 0 0 2px; }
.card .pos { color: var(--accent2); font-size: 13px; font-style: italic; }

/* respelling + rhyme hint share one line */
.resp-line {
  display: flex; align-items: baseline; flex-wrap: wrap;
  gap: 8px 16px; margin: 16px 0 6px;
}
.respelling { font-size: 30px; letter-spacing: 0.5px; line-height: 1.3; }
.respelling .syl { color: var(--muted); }
.respelling .syl.primary { color: var(--stress); font-weight: 800; }
.respelling .sep { color: #b9bdd0; padding: 0 2px; }

.hint { color: var(--accent2); font-size: 15px; }
.hint b { color: var(--ink); }

.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
.chip { font-size: 12px; color: var(--muted); border: 1px solid var(--line); padding: 4px 9px; border-radius: 999px; background: #fafbff; }

.play {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  background: var(--accent2); color: #fff; border: none; font-weight: 700;
  padding: 10px 16px; border-radius: 12px; font-size: 15px;
}
.play:active { transform: translateY(1px); }

.tips { margin: 16px 0 0; display: flex; flex-direction: column; gap: 8px; }
.tip {
  display: flex; gap: 10px; align-items: flex-start;
  background: #fff8e6; border: 1px solid #f3e3b3; border-radius: 12px;
  padding: 10px 12px; font-size: 13.5px; line-height: 1.45; color: #5a4a1c;
}
.tip-ico { font-size: 16px; line-height: 1.4; }
.tip-txt b { color: #2b2b2b; }

.def { color: #4a4d63; margin: 16px 0 0; font-size: 14px; line-height: 1.5; }
.note { color: #9a9db2; font-size: 11px; margin-top: 12px; }

.status { text-align: center; color: var(--muted); min-height: 20px; font-size: 14px; }

@media (max-width: 480px) {
  h1 { font-size: 22px; }
  .respelling { font-size: 25px; }
}