/* ═══════════════════════════════════════════
   CHESS LEVEL EVALUATOR — style.css
   Dark chess-themed, mobile-first
════════════════════════════════════════════ */

/* ── Variables ─────────────────────────── */
:root {
  --bg:            #0d0d1a;
  --card:          #1a1a2e;
  --card-border:   #2a2a45;
  --accent:        #e2b96f;
  --accent-dark:   #c99a4e;
  --accent-glow:   rgba(226, 185, 111, 0.25);
  --text:          #e8e8f0;
  --text-muted:    #8888aa;
  --board-light:   #f0d9b5;
  --board-dark:    #b58863;
  --sq-select:     #6f98d4;
  --sq-legal:      rgba(20, 85, 30, 0.5);
  --green:         #4caf50;
  --red:           #ef5350;
  --hint-color:    #64b5f6;
  --radius:        14px;
  --radius-sm:     8px;
  --shadow:        0 8px 32px rgba(0,0,0,0.5);
}

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

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

/* ── Page System ───────────────────────── */
.page {
  display: none;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn 0.35s ease;
}
.page.active { display: flex; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Card ──────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  width: 100%;
  max-width: 460px;
  box-shadow: var(--shadow);
}

/* ── Admin link ────────────────────────── */
.admin-link {
  display: inline-block;
  margin-top: 18px;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.admin-link:hover { color: var(--accent); }

/* ═══════════════════════════════════════
   LOGIN PAGE
════════════════════════════════════════ */
.login-card { text-align: center; }

.logo-icon {
  font-size: 64px;
  line-height: 1;
  margin-bottom: 8px;
  filter: drop-shadow(0 0 16px var(--accent));
  animation: pulse 2.5s ease-in-out infinite;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
  opacity: 0.95;
}

/* ═══════════════════════════════════════
   BRAND FOOTER
════════════════════════════════════════ */
.brand-footer {
  width: 100%;
  margin-top: 40px;
  padding: 20px 16px 24px;
  text-align: center;
  border-top: 1px solid rgba(226,185,111,0.15);
  background: rgba(14,21,33,0.6);
}
.footer-inner {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.footer-logo {
  font-size: 1.3rem;
  color: var(--accent);
  filter: drop-shadow(0 0 6px rgba(226,185,111,0.4));
}
.footer-text a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-text a:hover { color: #ffcc70; }
.footer-copy { font-size: 0.75rem; opacity: 0.7; }

/* Result page brand stamp */
.result-brand {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2.5px;
  text-align: center;
  margin-bottom: 4px;
  opacity: 0.9;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.07); }
}

.login-card h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.15;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
  line-height: 1.5;
}

#login-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

input[type="text"],
input[type="tel"] {
  background: #0d0d1a;
  border: 2px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1rem;
  padding: 14px 16px;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}
input[type="text"]:focus,
input[type="tel"]:focus  { border-color: var(--accent); }
input[type="text"]::placeholder,
input[type="tel"]::placeholder { color: var(--text-muted); }

/* ═══════════════════════════════════════
   PROFILE PAGE
════════════════════════════════════════ */
.profile-card {
  max-width: 520px;
  text-align: center;
}

.profile-icon {
  font-size: 2.8rem;
  margin-bottom: 8px;
}

.profile-form {
  text-align: left;
  margin: 20px 0 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-height: 54vh;
  overflow-y: auto;
  padding-right: 4px;
}

.pq-block {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pq-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.45;
}
.pq-sub  { display: block; font-size: 0.75rem; color: var(--text-muted); font-weight: 400; margin-top: 2px; }
.pq-req  { color: var(--accent); font-size: 0.8em; }

/* Radio option groups */
.pq-opts-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.pq-opts-col {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.pq-opt {
  display: flex;
  align-items: center;
  gap: 9px;
  background: var(--bg);
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text);
  transition: border-color 0.18s, background 0.18s;
  user-select: none;
}
.pq-opt:hover { border-color: var(--accent); background: rgba(226,185,111,0.05); }
.pq-opt input[type="radio"] {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  cursor: pointer;
}
.pq-opt:has(input:checked) {
  border-color: var(--accent);
  background: rgba(226,185,111,0.1);
  color: var(--accent);
  font-weight: 600;
}

/* Rating detail (conditional) */
.rating-detail {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.rating-detail input,
.rating-detail select {
  flex: 1;
  min-width: 120px;
  background: var(--bg);
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.88rem;
  padding: 9px 12px;
  outline: none;
}
.rating-detail input:focus,
.rating-detail select:focus  { border-color: var(--accent); }
.rating-detail select option { background: var(--card); }
.rating-detail.hidden { display: none; }

/* Skip button */
.btn-skip-profile {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.82rem;
  cursor: pointer;
  margin-top: 8px;
  padding: 6px;
  transition: color 0.2s;
  width: 100%;
}
.btn-skip-profile:hover { color: var(--text); }

/* ── Phone / WhatsApp field ──────────────── */
.phone-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.whatsapp-note {
  font-size: 0.78rem;
  color: #25d366;          /* WhatsApp green */
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0.85;
}

/* ═══════════════════════════════════════
   BUTTONS
════════════════════════════════════════ */
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #1a1100;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 20px;
  cursor: pointer;
  width: 100%;
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(226,185,111,0.3);
  letter-spacing: 0.3px;
}
.btn-primary:hover:not(:disabled) {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(226,185,111,0.45);
}
.btn-primary:active:not(:disabled) { transform: translateY(0); }
.btn-primary:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--hint-color);
  border: 1.5px solid var(--hint-color);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 11px 16px;
  cursor: pointer;
  flex: 1;
  transition: background 0.2s, opacity 0.2s;
}
.btn-secondary:hover:not(:disabled) { background: rgba(100,181,246,0.12); }
.btn-secondary:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-skip {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  text-decoration: underline;
  margin-top: 10px;
  display: block;
  width: 100%;
  text-align: center;
  transition: color 0.2s;
}
.btn-skip:hover { color: var(--text); }

/* "Don't Know" button — visible & inviting, but clearly secondary */
.btn-dontknow {
  display: block;
  width: 100%;
  margin-top: 12px;
  padding: 12px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffb84d;
  background: rgba(255,184,77,0.08);
  border: 1.5px solid rgba(255,184,77,0.4);
  border-radius: 10px;
  cursor: pointer;
  letter-spacing: 0.3px;
  transition: all 0.2s;
}
.btn-dontknow:hover {
  background: rgba(255,184,77,0.16);
  border-color: rgba(255,184,77,0.7);
  color: #ffcc70;
}
.btn-dontknow:active { transform: scale(0.98); }
.btn-dontknow:disabled { opacity: 0.4; cursor: not-allowed; }

/* ═══════════════════════════════════════
   INTRO PAGE
════════════════════════════════════════ */
.wave-emoji {
  font-size: 2.5rem;
  margin-bottom: 10px;
}
.card h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.3;
}
.accent-text { color: var(--accent); }

.intro-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.step-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  width: 36px;
  text-align: center;
}

.step-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.step-body strong { font-size: 0.95rem; color: var(--text); }
.step-body span   { font-size: 0.8rem;  color: var(--text-muted); }

/* ═══════════════════════════════════════
   PROGRESS BAR
════════════════════════════════════════ */
.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.step-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-mcq    { background: rgba(226,185,111,0.15); color: var(--accent); border: 1px solid var(--accent); }
.badge-puzzle { background: rgba(100,181,246,0.12); color: var(--hint-color); border: 1px solid var(--hint-color); }

.timer-badge {
  display: inline-block;
  margin-left: auto;
  padding: 4px 12px;
  font-size: 0.85rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  border-radius: 20px;
  background: rgba(226,185,111,0.12);
  color: var(--accent);
  border: 1px solid rgba(226,185,111,0.4);
  letter-spacing: 0.5px;
}
.timer-badge.timer-warning {
  background: rgba(255,99,99,0.15);
  color: #ff6b6b;
  border-color: rgba(255,99,99,0.5);
  animation: pulse-timer 0.8s ease-in-out infinite alternate;
}
@keyframes pulse-timer {
  from { transform: scale(1); }
  to   { transform: scale(1.06); }
}

.progress-bar {
  height: 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 22px;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-dark));
  border-radius: 99px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0%;
}

/* ═══════════════════════════════════════
   MCQ QUESTION
════════════════════════════════════════ */
.question-body { margin-bottom: 20px; }

.question-text {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.55;
  margin-bottom: 16px;
  color: var(--text);
}

.options-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option-btn {
  background: rgba(255,255,255,0.04);
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.93rem;
  padding: 13px 16px;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.1s;
  line-height: 1.4;
}
.option-btn:hover { border-color: var(--accent); background: var(--accent-glow); }
.option-btn.selected {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--accent);
  font-weight: 600;
}
.option-btn.correct {
  border-color: var(--green) !important;
  background: rgba(76,175,80,0.15) !important;
  color: var(--green) !important;
  font-weight: 600;
}
.option-btn.wrong {
  border-color: var(--red) !important;
  background: rgba(239,83,80,0.15) !important;
  color: var(--red) !important;
}

/* ═══════════════════════════════════════
   PUZZLE PAGE
════════════════════════════════════════ */
.puzzle-card {
  max-width: 620px;
  padding: 24px 20px;
}

.puzzle-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.puzzle-instruction {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.4;
}

/* ── Chess Board (chessboard.js container) ── */
.board-container {
  width: min(560px, calc(100vw - 48px));
  margin: 0 auto 16px;
}

/* chessboard.js wrapper gets a golden glow + rounded border */
#puzzle-board {
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 0 0 3px var(--accent), 0 0 32px rgba(226,185,111,0.3);
}

/* ── Lichess board colors (override chessboard.js defaults) ── */
/* chessboard.js already uses these exact colors by default:
   light = #f0d9b5, dark = #b58863. We just reinforce them. */
#puzzle-board .white-1e1d7 { background-color: #f0d9b5 !important; }
#puzzle-board .black-3c85d { background-color: #b58863 !important; }

/* ── Selected square highlight ─────────── */
#puzzle-board .sq-highlight-select {
  box-shadow: inset 0 0 0 4px rgba(111, 152, 212, 1) !important;
}

/* ── Legal move dot (empty square) ──────── */
.move-dot {
  position: absolute;
  width: 34%;
  height: 34%;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.23);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 5;
}

/* ── Legal move ring (capture square) ───── */
.move-ring {
  position: absolute;
  width: 91%;
  height: 91%;
  border-radius: 50%;
  border: 4px solid rgba(0, 0, 0, 0.23);
  background: transparent;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 5;
}

/* Make squares position:relative so dots/rings work */
#puzzle-board .square-55d63 {
  position: relative !important;
}

/* Remove chessboard.js default cursor on non-draggable board */
#puzzle-board img.piece-417db {
  cursor: pointer !important;
}
#puzzle-board .square-55d63 {
  cursor: pointer;
}

/* ── Feedback ────────────────────────── */
.feedback {
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 14px;
  animation: slideIn 0.25s ease;
}
.hidden { display: none !important; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.feedback-correct {
  background: rgba(76,175,80,0.15);
  border: 1.5px solid var(--green);
  color: #a5d6a7;
}
.feedback-wrong {
  background: rgba(239,83,80,0.15);
  border: 1.5px solid var(--red);
  color: #ef9a9a;
}
.feedback-hint {
  background: rgba(100,181,246,0.1);
  border: 1.5px solid var(--hint-color);
  color: #90caf9;
}

/* ── Puzzle Actions ──────────────────── */
.puzzle-actions {
  display: flex;
  gap: 10px;
  margin-bottom: 6px;
}

/* ═══════════════════════════════════════
   RESULT PAGE
════════════════════════════════════════ */
.result-card { text-align: center; }

.result-emoji {
  font-size: 3.5rem;
  margin-bottom: 6px;
  animation: bounceIn 0.6s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes bounceIn {
  0%   { transform: scale(0.3); opacity: 0; }
  60%  { transform: scale(1.12); opacity: 1; }
  80%  { transform: scale(0.95); }
  100% { transform: scale(1); }
}

.result-heading {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 10px;
}

.level-badge-big {
  display: inline-block;
  font-size: 1.6rem;
  font-weight: 800;
  padding: 10px 32px;
  border-radius: 40px;
  margin-bottom: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  animation: badgePop 0.5s 0.2s both;
}

@keyframes badgePop {
  from { transform: scale(0.7); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.level-beginner     { background: rgba(76,175,80,0.15);  border: 2px solid #4caf50; color: #a5d6a7; }
.level-intermediate { background: rgba(255,193,7,0.15);  border: 2px solid #ffc107; color: #ffe082; }
.level-advanced     { background: rgba(226,185,111,0.15); border: 2px solid var(--accent); color: var(--accent); }

.level-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 24px;
  line-height: 1.5;
  padding: 0 8px;
}

/* Score Grid */
.score-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 24px;
}

.score-box {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 14px 8px;
  text-align: center;
}
.score-box-total {
  background: var(--accent-glow);
  border-color: var(--accent);
}

.score-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 4px;
}
.score-box-total .score-num { font-size: 1.7rem; }

.score-lbl {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

/* Review */
.review-section {
  text-align: left;
  margin-bottom: 24px;
}
.review-heading {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
}

#review-list { display: flex; flex-direction: column; gap: 8px; }

.review-item {
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.83rem;
  line-height: 1.45;
  border-left: 3px solid;
}
.review-correct {
  background: rgba(76,175,80,0.08);
  border-left-color: var(--green);
}
.review-wrong {
  background: rgba(239,83,80,0.08);
  border-left-color: var(--red);
}

.review-q   { font-weight: 600; color: var(--text); margin-bottom: 3px; }
.review-ans { color: var(--green); margin-bottom: 2px; }
.review-exp { color: var(--text-muted); font-size: 0.78rem; }

/* ── WhatsApp Share Button ──────────────── */
.btn-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: #25d366;
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 20px;
  text-decoration: none;
  cursor: pointer;
  margin-bottom: 12px;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(37,211,102,0.3);
  letter-spacing: 0.2px;
}
.btn-whatsapp:hover {
  background: #1ebe5d;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,211,102,0.45);
}
.btn-whatsapp:active { transform: translateY(0); }
.btn-whatsapp.hidden { display: none; }

/* ═══════════════════════════════════════
   SCROLLBAR
════════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 99px; }

/* ═══════════════════════════════════════
   RESPONSIVE — very small screens
════════════════════════════════════════ */
@media (max-width: 360px) {
  .card { padding: 20px 16px; }
  .login-card h1 { font-size: 1.65rem; }
  .score-grid { gap: 6px; }
  .score-num  { font-size: 1.2rem; }
}