/* ═══════════════════════════════════════════════════
   Quizurselfinflags — Stylesheet
   Dark/vibrant quiz-game theme
════════════════════════════════════════════════════ */

/* ── Reset & base ─────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:        #0d0f1a;
  --surface:   #161929;
  --card:      #1e2235;
  --border:    #2c3150;
  --accent:    #4f7cff;
  --accent2:   #7c4fff;
  --green:     #22c55e;
  --red:       #ef4444;
  --yellow:    #eab308;
  --text:      #f0f2ff;
  --text-dim:  #8b90b0;
  --radius:    14px;
  --radius-sm: 8px;
  --shadow:    0 4px 32px rgba(0,0,0,0.5);
}

html, body {
  height: 100%;
  font-family: 'Poppins', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

/* ── Screen management ────────────────────────── */
.screen {
  display: none;
  min-height: 100vh;
  width: 100%;
  animation: fadeIn 0.25s ease;
}
.screen.active {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Card ─────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 520px;
}

/* ── Buttons ──────────────────────────────────── */
/* Prevent iOS double-tap zoom on every interactive element */
button { touch-action: manipulation; }

.btn-primary, .btn-secondary, .btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  padding: .75rem 1.75rem;
  transition: filter .15s, transform .1s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
}
.btn-primary:hover:not(:disabled) { filter: brightness(1.15); }
.btn-primary:active:not(:disabled) { transform: scale(.97); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text-dim);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--text); }

.btn-danger {
  background: var(--red);
  color: #fff;
}
.btn-danger:hover { filter: brightness(1.1); }

/* ── Loading screen ───────────────────────────── */
#screen-loading {
  background: var(--bg);
}
.loading-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
}
#logo-loading {
  width: 240px;
  height: auto;
}
.loading-title {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.spinner {
  width: 44px;
  height: 44px;
  border: 4px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text { color: var(--text-dim); font-size: .9rem; }

/* ── Start screen ─────────────────────────────── */
#screen-start {
  padding: 1.5rem 1rem;
}
.start-inner {
  max-width: 500px;
}
#logo-start {
  display: block;
  margin: 0 auto 0.2rem;
  width: 200px;
  height: auto;
}
.site-title {
  text-align: center;
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -.5px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.form-group {
  margin-bottom: 1.1rem;
}
.form-group label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: .5rem;
}
input[type="text"] {
  width: 100%;
  padding: .75rem 1rem;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color .2s;
}
input[type="text"]:focus {
  border-color: var(--accent);
}
input[type="text"]::placeholder {
  color: var(--text-dim);
}

/* Difficulty cards */
.option-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .6rem;
}
.option-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
  padding: .85rem .5rem;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-dim);
  font-family: inherit;
  transition: border-color .2s, color .2s, background .2s;
}
.option-card:hover {
  border-color: var(--accent);
  color: var(--text);
}
.option-card.selected {
  border-color: var(--accent);
  background: rgba(79,124,255,.15);
  color: var(--text);
}
.card-icon { font-size: 1.4rem; }
.card-label { font-weight: 700; font-size: .95rem; }
.card-sub { font-size: .7rem; color: #a8adc8; text-align: center; line-height: 1.2; }

/* Round pills */
.option-pills {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
}
.pill {
  padding: .45rem 1rem;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  color: var(--text-dim);
  font-family: inherit;
  font-weight: 700;
  transition: border-color .2s, color .2s, background .2s;
}
.pill:hover {
  border-color: var(--accent);
  color: var(--text);
}
.pill.selected {
  border-color: var(--accent);
  background: rgba(79,124,255,.2);
  color: var(--text);
}

.start-actions {
  display: flex;
  gap: .75rem;
  margin-top: 1rem;
}
.start-actions .btn-primary { flex: 1; font-size: 1.1rem; padding: .9rem; }
.start-actions .btn-secondary { flex-shrink: 0; }

.error-msg {
  color: var(--red);
  font-size: .85rem;
  margin-top: .5rem;
  text-align: center;
}
.credit {
  text-align: center;
  font-size: .68rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
  letter-spacing: .04em;
}
.hidden { display: none !important; }

/* ── Game screen ──────────────────────────────── */
#screen-game {
  flex-direction: column;
  align-items: stretch;
  padding: 0;
}
.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .8rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  gap: 1rem;
  flex-shrink: 0;
}
.game-info {
  display: flex;
  flex-direction: column;
  gap: .1rem;
}
#round-counter {
  font-weight: 700;
  font-size: .95rem;
}
#player-display {
  font-size: .8rem;
  color: var(--text-dim);
}
.score-display {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.score-label {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-dim);
}
#current-score {
  display: inline-block;        /* needed for transform animation */
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
@keyframes scorePop {
  0%   { transform: scale(1); }
  45%  { transform: scale(1.5); }
  100% { transform: scale(1); }
}
.score-pop { animation: scorePop 0.55s cubic-bezier(.36,.07,.19,.97); }
.btn-quit {
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-family: inherit;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  padding: .4rem .8rem;
  transition: border-color .2s, color .2s;
}
.btn-quit:hover { border-color: var(--red); color: var(--red); }

.game-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem 2rem;
  gap: 1.5rem;
}

.flag-container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 440px;
  min-height: 220px;
}
#flag-img {
  max-width: 380px;
  width: 100%;
  max-height: 240px;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 2px 16px rgba(0,0,0,.4);
  transition: opacity 0.25s ease;
}

/* Timer */
.timer-section {
  width: 100%;
  max-width: 440px;
  display: flex;
  align-items: center;
  gap: .75rem;
}
.timer-bar-track {
  flex: 1;
  height: 12px;
  background: var(--surface);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.timer-bar {
  height: 100%;
  width: 100%;
  background: var(--green);
  border-radius: 999px;
  transition: width .1s linear, background .3s;
  transform-origin: left;
}
.timer-bar.yellow { background: var(--yellow); }
.timer-bar.red    { background: var(--red); }
#timer-seconds {
  font-size: 1.1rem;
  font-weight: 800;
  min-width: 2ch;
  text-align: right;
}

/* Answers grid */
.answers-grid {
  width: 100%;
  max-width: 440px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .65rem;
}
.answer-btn {
  padding: .85rem .75rem;
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: .92rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: border-color .15s, background .15s, transform .1s;
  line-height: 1.25;
}
.answer-btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: rgba(79,124,255,.12);
  transform: translateY(-2px);
}
.answer-btn:active:not(:disabled) { transform: translateY(0); }
.answer-btn:disabled { cursor: default; }
/* Remove focus ring on mouse/touch — :focus-visible keeps it for keyboard nav */
.answer-btn:focus:not(:focus-visible) { outline: none; }
.answer-btn.correct {
  border-color: var(--green);
  background: rgba(34,197,94,.18);
  color: var(--green);
}
.answer-btn.wrong {
  border-color: var(--red);
  background: rgba(239,68,68,.18);
  color: var(--red);
}

/* ── In-game result panel (below persistent header) ── */
.game-result {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  touch-action: manipulation;
}
.result-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  max-width: 400px;
  width: 100%;
}
.result-icon {
  font-size: 4rem;
  line-height: 1;
}
.result-headline {
  font-size: 1.8rem;
  font-weight: 800;
}
.result-headline.correct-text { color: var(--green); }
.result-headline.wrong-text   { color: var(--red); }
.result-points {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
}
.result-answer {
  font-size: .95rem;
  color: var(--text-dim);
}
.result-progress {
  width: 100%;
  height: 5px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin-top: .5rem;
}
.result-progress-bar {
  height: 100%;
  background: var(--accent);
  width: 100%;
  transition: width 1.5s linear;
  border-radius: 999px;
}

/* ── Final score screen ───────────────────────── */
#screen-final {
  padding: 2rem 1rem;
}
.final-inner {
  text-align: center;
}
.final-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}
.final-score-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: .75rem;
}
.final-score-label {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-dim);
}
.final-score-value {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.final-correct {
  color: var(--text-dim);
  margin-bottom: .4rem;
  font-size: .95rem;
}
.final-difficulty-label {
  font-size: .8rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}
.final-actions {
  display: flex;
  gap: .75rem;
  justify-content: center;
}
/* Both buttons the same width */
.final-actions .btn-primary,
.final-actions .btn-secondary { flex: 1; }

/* ── Scoreboard screen ────────────────────────── */
#screen-scoreboard {
  padding: 2rem 1rem;
  align-items: stretch;
  justify-content: flex-start;
}
.scoreboard-inner {
  margin: 0 auto;
  max-width: 620px;
}
.scoreboard-title {
  font-size: 1.7rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 1.2rem;
}
.tab-bar {
  display: flex;
  gap: .4rem;
  margin-bottom: 1.2rem;
  border-bottom: 2px solid var(--border);
  padding-bottom: .4rem;
}
.tab {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: inherit;
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  padding: .4rem 1rem;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: color .15s, background .15s;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
  margin-bottom: -2px;
}
.scoreboard-table-wrap {
  overflow-x: auto;
  margin-bottom: 1.2rem;
}
.scoreboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
.scoreboard-table th {
  text-align: left;
  padding: .5rem .75rem;
  color: var(--text-dim);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  border-bottom: 1px solid var(--border);
}
.scoreboard-table td {
  padding: .65rem .75rem;
  border-bottom: 1px solid rgba(44,49,80,.5);
}
.scoreboard-table tr:first-child td { color: #ffd700; font-weight: 700; }
.scoreboard-table tr:nth-child(2) td { color: #c0c0c0; }
.scoreboard-table tr:nth-child(3) td { color: #cd7f32; }
.scoreboard-table tr:hover td { background: rgba(79,124,255,.06); }
.rank-cell { font-weight: 700; width: 2rem; }
.scoreboard-actions {
  display: flex;
  gap: .75rem;
  margin-top: .25rem;
}
.scoreboard-actions .btn-primary,
.scoreboard-actions .btn-secondary { flex: 1; }
.scoreboard-empty {
  text-align: center;
  color: var(--text-dim);
  padding: 2rem;
  font-size: .95rem;
}

/* ── Quit modal ───────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
  animation: fadeIn .2s ease;
}
.modal-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 340px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow);
}
.modal-box h3 {
  font-size: 1.4rem;
  margin-bottom: .6rem;
}
.modal-box p {
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  font-size: .95rem;
}
.modal-actions {
  display: flex;
  gap: .75rem;
  justify-content: center;
}

/* ── Tap hint on result panel ─────────────────── */
.result-tap-hint {
  font-size: .75rem;
  color: var(--text-dim);
  opacity: .5;
  letter-spacing: .04em;
  margin-top: -.25rem;
}

/* ── Countdown overlay ────────────────────────── */
.countdown-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);   /* fully opaque — nothing shows behind the numbers */
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.countdown-number {
  font-size: 9rem;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 0 60px rgba(79,124,255,.9), 0 0 120px rgba(124,79,255,.4);
  animation: countPulse .6s cubic-bezier(.25,.46,.45,.94);
  line-height: 1;
  user-select: none;
}
.countdown-number.go {
  color: var(--green);
  text-shadow: 0 0 60px rgba(34,197,94,.9), 0 0 120px rgba(34,197,94,.4);
}
@keyframes countPulse {
  from { transform: scale(2.2); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

/* ── Rank banner on final screen ─────────────── */
.final-rank-banner {
  background: linear-gradient(135deg, rgba(79,124,255,.15), rgba(124,79,255,.15));
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: .7rem 1.25rem;
  margin-bottom: .9rem;
  color: var(--text);
  font-weight: 700;
  text-align: center;
  font-size: .95rem;
  animation: fadeIn .4s ease;
}

/* ── Responsive ───────────────────────────────── */
@media (max-width: 480px) {
  /* Start screen — fits without scrolling even on iPhone SE */
  #screen-start { padding: .75rem .75rem; }
  .card { padding: 1.25rem 1rem; }
  #logo-start { width: 110px; margin-bottom: .4rem; }
  .site-title { font-size: 1.35rem; margin-bottom: 0.6rem; }
  .form-group { margin-bottom: .85rem; }
  /* Keep difficulty cards in 3 columns (don't stack) */
  .option-cards { grid-template-columns: repeat(3, 1fr); gap: .4rem; }
  .option-card { padding: .55rem .25rem; gap: .1rem; }
  .card-icon { font-size: 1.05rem; }
  .card-label { font-size: .85rem; }
  .card-sub { font-size: .6rem; }
  .start-actions { margin-top: .85rem; }
  /* Game screen */
  .game-header { padding: .6rem 1rem; }
  .answers-grid { grid-template-columns: 1fr 1fr; }
  #flag-img { max-height: 180px; }
  /* Final screen */
  .final-score-value { font-size: 3rem; }
  /* Countdown */
  .countdown-number { font-size: 7rem; }
}