/* ═══════════════════════════════════════════════════════
   DarijaLearn — بدارجة   |   Learn B Darija
   Design: Warm Moroccan-inspired modern dark UI
   Science: Spaced repetition, retrieval practice, flow state
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Instrument+Sans:ital,wght@0,400;0,500;0,600;1,400&family=Noto+Sans+Arabic:wght@400;500;600;700&display=swap');

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

:root {
  --bg:          #0d0d0f;
  --surface:     #141417;
  --surface-2:   #1c1c21;
  --surface-3:   #252529;
  --border:      rgba(255,255,255,0.07);
  --border-2:    rgba(255,255,255,0.13);

  --primary:     #F5633A;
  --primary-dim: rgba(245,99,58,0.15);
  --primary-glow:rgba(245,99,58,0.35);

  --teal:        #00C9A7;
  --teal-dim:    rgba(0,201,167,0.12);
  --gold:        #F0A500;
  --gold-dim:    rgba(240,165,0,0.15);
  --blue:        #4B8CF7;
  --blue-dim:    rgba(75,140,247,0.15);

  --text:        #F0EEE9;
  --text-2:      #A8A6A0;
  --text-3:      #6B6966;

  --correct:     #00C9A7;
  --wrong:       #FF4D6D;
  --correct-bg:  rgba(0,201,167,0.1);
  --wrong-bg:    rgba(255,77,109,0.1);

  --max-w:       480px;
  --nav-h:       68px;
  --top-h:       56px;
  --radius:      16px;
  --radius-sm:   10px;
  --radius-lg:   24px;

  --font-display: 'Syne', sans-serif;
  --font-body:    'Instrument Sans', sans-serif;
  --font-arabic:  'Noto Sans Arabic', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

#app {
  max-width: var(--max-w);
  margin: 0 auto;
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
  background: var(--bg);
  overflow: hidden;
}

/* ── Screens ─── */
.screen { display: none; flex-direction: column; min-height: 100vh; min-height: 100dvh; position: relative; z-index: 1; }
.screen.active { display: flex; animation: screenIn 0.28s cubic-bezier(0.22,1,0.36,1) both; }
.screen.exiting { display: flex; animation: screenOut 0.2s ease-in both; }

@keyframes screenIn  { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
@keyframes screenOut { from { opacity: 1; } to { opacity: 0; } }

/* ════════════════════════════════
   LOADING
════════════════════════════════ */
#screen-loading { display: flex; align-items: center; justify-content: center; background: var(--bg); }
#screen-loading.active { display: flex; }

.loading-container { text-align: center; padding: 2rem; }

.loading-emblem { width: 84px; height: 84px; margin: 0 auto 1.5rem; position: relative; }
.loading-emblem-ring { width: 100%; height: 100%; border-radius: 50%; border: 2px solid var(--surface-3); border-top-color: var(--primary); animation: spin 1s linear infinite; }
.loading-emblem-inner { position: absolute; inset: 13px; background: var(--surface); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.75rem; }

.loading-title { font-family: var(--font-display); font-size: 1.75rem; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 0.3rem; }
.loading-sub { font-family: var(--font-arabic); color: var(--text-2); font-size: 0.9rem; margin-bottom: 2rem; }

.loading-bar { width: 140px; height: 3px; background: var(--surface-3); border-radius: 99px; margin: 0 auto; overflow: hidden; }
.loading-bar-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--gold)); border-radius: 99px; animation: loadBar 1.4s cubic-bezier(0.4,0,0.2,1) both; }

@keyframes loadBar { from { width: 0; } to { width: 100%; } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ════════════════════════════════
   LOGIN
════════════════════════════════ */
#screen-login { background: var(--bg); justify-content: center; align-items: center; padding: 2rem 1.5rem; }

.login-hero { text-align: center; margin-bottom: 2.5rem; }

.login-flags { display: flex; align-items: center; justify-content: center; gap: 1rem; margin-bottom: 1.25rem; font-size: 2.2rem; }
.login-arrow { color: var(--primary); font-size: 1.3rem; animation: arrPulse 2s ease-in-out infinite; }
@keyframes arrPulse { 0%,100% { transform: translateX(0); opacity: 1; } 50% { transform: translateX(5px); opacity: 0.7; } }

.login-brand { font-family: var(--font-display); font-size: 2.5rem; font-weight: 800; letter-spacing: -0.04em; line-height: 1; background: linear-gradient(135deg, var(--text) 0%, var(--primary) 60%, var(--gold) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 0.5rem; }
.login-tagline { font-family: var(--font-arabic); font-size: 1rem; color: var(--text-2); direction: rtl; margin-bottom: 0.2rem; }
.login-tagline-en { font-size: 0.82rem; color: var(--text-3); }

.login-pills { display: flex; flex-wrap: wrap; gap: 0.45rem; justify-content: center; margin-top: 1rem; }
.login-pill { display: flex; align-items: center; gap: 0.3rem; background: var(--surface); border: 1px solid var(--border); border-radius: 99px; padding: 0.28rem 0.7rem; font-size: 0.75rem; color: var(--text-2); }

.login-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.75rem; width: 100%; max-width: 360px; }
.login-card h2 { font-family: var(--font-arabic); font-size: 1.4rem; font-weight: 600; margin-bottom: 0.35rem; direction: rtl; }
.login-card p { color: var(--text-2); font-size: 0.86rem; line-height: 1.5; margin-bottom: 1.2rem; }

.input-group { display: flex; flex-direction: column; gap: 0.6rem; }

.input-field { width: 100%; padding: 0.85rem 1rem; background: var(--surface-2); border: 1.5px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-family: var(--font-body); font-size: 1rem; outline: none; transition: border-color 0.2s, box-shadow 0.2s; }
.input-field:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-dim); }
.input-field::placeholder { color: var(--text-3); }
.input-field.correct { border-color: var(--correct); }
.input-field.wrong { border-color: var(--wrong); animation: wrongShake 0.35s ease; }

.login-note { font-size: 0.73rem; color: var(--text-3); text-align: center; margin-top: 0.75rem; margin-bottom: 0; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; padding: 0.85rem 1.5rem; border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 0.95rem; font-weight: 600; border: none; cursor: pointer; transition: all 0.15s; white-space: nowrap; user-select: none; }
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 20px rgba(245,99,58,0.3); }
.btn-primary:hover { background: #f7744f; box-shadow: 0 6px 24px rgba(245,99,58,0.4); }
.btn-primary:disabled { background: var(--surface-3); color: var(--text-3); box-shadow: none; cursor: not-allowed; transform: none; }
.btn-ghost { background: transparent; color: var(--text-2); border: 1.5px solid var(--border-2); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-teal { background: var(--teal); color: var(--bg); font-weight: 700; }
.btn-full { width: 100%; }
.btn-sm { padding: 0.5rem 0.9rem; font-size: 0.82rem; }

/* ════════════════════════════════
   TOP BAR
════════════════════════════════ */
.top-bar { height: var(--top-h); display: flex; align-items: center; justify-content: space-between; padding: 0 1rem; background: rgba(13,13,15,0.95); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }

.top-badges { display: flex; align-items: center; gap: 0.5rem; }

.badge { display: flex; align-items: center; gap: 0.3rem; padding: 0.28rem 0.6rem; background: var(--surface); border: 1px solid var(--border); border-radius: 99px; font-family: var(--font-display); font-size: 0.82rem; font-weight: 700; }
.badge-streak { border-color: rgba(240,165,0,0.25); color: var(--gold); }
.badge-gems   { border-color: rgba(75,140,247,0.25); color: var(--blue); }
.badge-hearts { border-color: rgba(255,77,109,0.25); color: #FF4D6D; }

.app-wordmark { font-family: var(--font-display); font-size: 1.05rem; font-weight: 800; letter-spacing: -0.02em; }
.app-wordmark span { color: var(--primary); }

.back-btn, .close-btn { width: 36px; height: 36px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--border); color: var(--text); display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1rem; transition: all 0.15s; }
.back-btn:hover, .close-btn:hover { background: var(--surface-3); }

.screen-title { font-family: var(--font-display); font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; }

/* ════════════════════════════════
   BOTTOM NAV
════════════════════════════════ */
.bottom-nav { height: var(--nav-h); display: flex; align-items: center; justify-content: space-around; background: rgba(13,13,15,0.97); border-top: 1px solid var(--border); position: sticky; bottom: 0; z-index: 100; padding-bottom: env(safe-area-inset-bottom,0); }

.nav-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.2rem; padding: 0.5rem; background: none; border: none; cursor: pointer; color: var(--text-3); transition: color 0.15s; position: relative; }
.nav-item.active { color: var(--primary); }
.nav-icon { font-size: 1.3rem; line-height: 1; transition: transform 0.2s cubic-bezier(0.34,1.56,0.64,1); }
.nav-item.active .nav-icon { transform: scale(1.15); }
.nav-label { font-size: 0.66rem; font-weight: 600; letter-spacing: 0.01em; }
.nav-item.active::after { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 24px; height: 2px; background: var(--primary); border-radius: 0 0 99px 99px; }

/* ════════════════════════════════
   HOME SCREEN
════════════════════════════════ */
.home-content { flex: 1; overflow-y: auto; padding: 1.25rem 1rem; display: flex; flex-direction: column; gap: 0.85rem; overscroll-behavior: contain; }

/* Daily card */
.daily-card { background: linear-gradient(135deg, #1a1208 0%, #1c1510 60%, #160f0e 100%); border: 1px solid rgba(240,165,0,0.2); border-radius: var(--radius-lg); padding: 1.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.daily-label { font-size: 0.7rem; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.07em; font-weight: 700; margin-bottom: 0.35rem; }
.daily-xp-val { font-family: var(--font-display); font-size: 1.5rem; font-weight: 800; color: var(--gold); line-height: 1; margin-bottom: 0.3rem; }
.daily-sub { font-size: 0.78rem; color: var(--text-2); }

.daily-ring-wrap { position: relative; width: 66px; height: 66px; flex-shrink: 0; }
.daily-ring-svg { width: 66px; height: 66px; transform: rotate(-90deg); }
.daily-ring-bg { fill: none; stroke: var(--surface-3); stroke-width: 5; }
.daily-ring-fill { fill: none; stroke: var(--gold); stroke-width: 5; stroke-linecap: round; stroke-dasharray: 157; stroke-dashoffset: 157; transition: stroke-dashoffset 1s cubic-bezier(0.4,0,0.2,1); filter: drop-shadow(0 0 5px rgba(240,165,0,0.5)); }
.daily-ring-pct { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 0.8rem; font-weight: 800; color: var(--gold); }

/* Level card */
.level-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; }
.level-row { display: flex; align-items: center; gap: 0.85rem; margin-bottom: 0.65rem; }
.level-bubble { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--gold)); display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 1.1rem; font-weight: 800; color: white; flex-shrink: 0; box-shadow: 0 4px 16px rgba(245,99,58,0.3); }
.level-name { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin-bottom: 0.1rem; }
.level-xp-label { font-size: 0.76rem; color: var(--text-2); }
.xp-track { height: 6px; background: var(--surface-3); border-radius: 99px; overflow: hidden; }
.xp-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--gold)); border-radius: 99px; transition: width 0.8s cubic-bezier(0.4,0,0.2,1); min-width: 0; }

/* Review alert */
.review-alert { background: var(--surface); border: 1.5px solid rgba(75,140,247,0.3); border-radius: var(--radius); padding: 0.9rem 1rem; display: flex; align-items: center; gap: 0.75rem; animation: slideDown 0.3s ease both; }
@keyframes slideDown { from { opacity:0; transform: translateY(-6px); } to { opacity:1; transform: translateY(0); } }
.review-icon { font-size: 1.4rem; flex-shrink: 0; }
.review-text { flex: 1; min-width: 0; }
.review-text h4 { font-family: var(--font-display); font-size: 0.87rem; font-weight: 700; color: var(--blue); margin-bottom: 0.12rem; }
.review-text p  { font-size: 0.76rem; color: var(--text-2); }

/* Action grid */
.section-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-3); }
.action-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }
.action-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem 1rem; cursor: pointer; text-align: left; transition: all 0.18s; display: flex; flex-direction: column; gap: 0.5rem; position: relative; overflow: hidden; }
.action-card::before { content: ''; position: absolute; top: 0; inset-inline: 0; height: 2px; border-radius: var(--radius) var(--radius) 0 0; }
.action-card:hover { transform: translateY(-2px); border-color: var(--border-2); }
.action-card:active { transform: scale(0.97); }
.action-card-icon { font-size: 1.55rem; line-height: 1; }
.action-card-label { font-family: var(--font-display); font-size: 0.88rem; font-weight: 700; }
.action-card-sub { font-size: 0.73rem; color: var(--text-2); line-height: 1.3; }
.action-learn::before   { background: var(--primary); }
.action-practice::before{ background: var(--teal); }
.action-phrases::before { background: var(--blue); }
.action-progress::before{ background: var(--gold); }

/* ════════════════════════════════
   CATEGORIES
════════════════════════════════ */
.categories-content { flex: 1; overflow-y: auto; overscroll-behavior: contain; }
.cat-tabs-wrap { padding: 0.85rem 1rem 0; background: var(--bg); position: sticky; top: var(--top-h); z-index: 50; }
.category-tabs { display: flex; background: var(--surface); border-radius: var(--radius-sm); padding: 0.25rem; gap: 0.2rem; margin-bottom: 0; }
.tab { flex: 1; padding: 0.55rem; background: none; border: none; border-radius: 8px; font-family: var(--font-body); font-size: 0.87rem; font-weight: 600; color: var(--text-2); cursor: pointer; transition: all 0.18s; }
.tab.active { background: var(--primary); color: white; box-shadow: 0 2px 10px rgba(245,99,58,0.3); }
.categories-list { padding: 0.75rem 1rem 1rem; display: flex; flex-direction: column; gap: 0.5rem; }
.category-item { display: flex; align-items: center; gap: 0.85rem; padding: 0.85rem 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer; transition: all 0.15s; width: 100%; text-align: left; }
.category-item:hover  { border-color: var(--border-2); background: var(--surface-2); }
.category-item:active { transform: scale(0.98); }
.cat-icon-wrap { width: 42px; height: 42px; border-radius: 12px; background: var(--surface-2); display: flex; align-items: center; justify-content: center; font-size: 1.25rem; flex-shrink: 0; }
.cat-body { flex: 1; min-width: 0; }
.cat-name { font-family: var(--font-display); font-size: 0.9rem; font-weight: 700; color: var(--text); text-transform: capitalize; margin-bottom: 0.15rem; }
.cat-meta { font-size: 0.73rem; color: var(--text-2); }
.cat-progress-mini { width: 50px; height: 4px; background: var(--surface-3); border-radius: 99px; overflow: hidden; margin-top: 0.3rem; }
.cat-progress-fill { height: 100%; background: var(--teal); border-radius: 99px; }
.cat-badge { padding: 0.2rem 0.5rem; background: var(--surface-2); border-radius: 6px; font-size: 0.7rem; font-weight: 700; color: var(--text-3); flex-shrink: 0; }

/* ════════════════════════════════
   LESSON SCREEN
════════════════════════════════ */
#screen-lesson { background: var(--bg); }

.lesson-header { height: 56px; display: flex; align-items: center; gap: 0.75rem; padding: 0 1rem; background: var(--bg); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.lesson-progress-track { flex: 1; height: 8px; background: var(--surface-3); border-radius: 99px; overflow: hidden; }
.lesson-progress-bar { height: 100%; background: linear-gradient(90deg, var(--primary), var(--gold)); border-radius: 99px; width: 0%; transition: width 0.5s cubic-bezier(0.4,0,0.2,1); }
.lesson-hearts-disp { display: flex; align-items: center; gap: 0.2rem; font-family: var(--font-display); font-size: 0.88rem; font-weight: 700; color: #FF4D6D; flex-shrink: 0; }
.lesson-hearts-disp.heart-break { animation: hBreak 0.4s ease; }
@keyframes hBreak { 0%{transform:scale(1)} 25%{transform:scale(1.3)} 50%{transform:scale(0.9)} 100%{transform:scale(1)} }

.lesson-content { flex: 1; padding: 1.75rem 1.25rem 1rem; display: flex; flex-direction: column; }

.exercise-wrap { flex: 1; display: flex; flex-direction: column; animation: exIn 0.32s cubic-bezier(0.22,1,0.36,1) both; }
@keyframes exIn { from { opacity:0; transform: translateY(16px) scale(0.98); } to { opacity:1; transform:translateY(0) scale(1); } }

.ex-direction-tag { display: inline-flex; align-items: center; gap: 0.3rem; background: var(--surface-2); border: 1px solid var(--border); border-radius: 99px; padding: 0.28rem 0.7rem; font-size: 0.73rem; font-weight: 600; color: var(--text-2); margin-bottom: 1.4rem; align-self: flex-start; }

.ex-prompt-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.75rem 1.5rem; text-align: center; margin-bottom: 1.6rem; position: relative; overflow: hidden; }
.ex-prompt-card::before { content: ''; position: absolute; top: 0; inset-inline: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--gold), var(--teal)); opacity: 0.6; }

.prompt-main { font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--text); line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 0.5rem; }
.prompt-arabic { font-family: var(--font-arabic); font-size: 1.25rem; color: var(--text-2); direction: rtl; line-height: 1.4; }
.prompt-english { font-family: var(--font-display); font-size: 1.75rem; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.prompt-cat-tag { display: inline-block; margin-top: 0.75rem; padding: 0.18rem 0.55rem; background: var(--surface-3); border-radius: 6px; font-size: 0.68rem; font-weight: 600; color: var(--text-3); text-transform: capitalize; }

/* Options */
.options-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }

.btn-option { display: flex; align-items: center; gap: 0.6rem; padding: 0.85rem 0.9rem; background: var(--surface); border: 1.5px solid var(--border); border-radius: var(--radius); color: var(--text); font-family: var(--font-body); font-size: 0.9rem; font-weight: 500; cursor: pointer; text-align: left; transition: all 0.15s; min-height: 58px; word-break: break-word; hyphens: auto; }
.btn-option:hover:not(:disabled) { border-color: var(--primary); background: var(--primary-dim); transform: translateY(-1px); }
.btn-option:active:not(:disabled) { transform: scale(0.97); }
.btn-option:disabled { cursor: default; }

.opt-key { width: 25px; height: 25px; border-radius: 7px; background: var(--surface-3); display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 0.72rem; font-weight: 800; flex-shrink: 0; transition: background 0.15s; }

.btn-option.correct { border-color: var(--correct); background: var(--correct-bg); color: var(--correct); animation: correctPop 0.3s ease; }
.btn-option.correct .opt-key { background: var(--correct); color: var(--bg); }
.btn-option.wrong { border-color: var(--wrong); background: var(--wrong-bg); color: var(--wrong); animation: wrongShake 0.35s ease; }
.btn-option.wrong .opt-key { background: var(--wrong); color: white; }

@keyframes correctPop { 0%{transform:scale(1)} 40%{transform:scale(1.04)} 100%{transform:scale(1)} }
@keyframes wrongShake { 0%,100%{transform:translateX(0)} 20%{transform:translateX(-6px)} 40%{transform:translateX(6px)} 60%{transform:translateX(-4px)} 80%{transform:translateX(4px)} }

/* Type answer */
.type-input-wrap { margin-bottom: 0.75rem; }
.type-answer-input { width: 100%; padding: 1rem; background: var(--surface); border: 1.5px solid var(--border); border-radius: var(--radius); color: var(--text); font-family: var(--font-body); font-size: 1.05rem; outline: none; transition: border-color 0.2s, box-shadow 0.2s; }
.type-answer-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-dim); }
.type-answer-input.correct { border-color: var(--correct); background: var(--correct-bg); }
.type-answer-input.wrong { border-color: var(--wrong); background: var(--wrong-bg); }

/* Lesson footer */
.lesson-footer { padding: 0.75rem 1.25rem 1.25rem; background: var(--bg); border-top: 1px solid var(--border); position: sticky; bottom: 0; }
.feedback-bar { display: flex; align-items: flex-start; gap: 0.6rem; padding: 0.75rem 1rem; border-radius: var(--radius-sm); margin-bottom: 0.6rem; font-weight: 600; font-size: 0.9rem; animation: feedIn 0.25s ease both; }
@keyframes feedIn { from{opacity:0;transform:translateY(6px)} to{opacity:1;transform:translateY(0)} }
.feedback-bar.correct { background: var(--correct-bg); border: 1px solid rgba(0,201,167,0.25); color: var(--correct); }
.feedback-bar.wrong { background: var(--wrong-bg); border: 1px solid rgba(255,77,109,0.2); color: var(--wrong); }
.feedback-correct-word { font-family: var(--font-display); font-weight: 800; color: var(--text); }

/* ════════════════════════════════
   LESSON COMPLETE
════════════════════════════════ */
#screen-lesson-complete { background: var(--bg); align-items: center; justify-content: center; padding: 2rem 1.5rem; }
.complete-container { width: 100%; max-width: 360px; text-align: center; }
.complete-confetti { position: fixed; inset: 0; pointer-events: none; overflow: hidden; z-index: 200; }
.confetti-particle { position: absolute; border-radius: 2px; animation: confettiFall linear both; }
@keyframes confettiFall { from{transform:translateY(0) rotate(0deg);opacity:1} to{transform:translateY(110vh) rotate(720deg);opacity:0} }

.complete-trophy { font-size: 5rem; margin-bottom: 0.75rem; animation: trophyBounce 0.6s cubic-bezier(0.34,1.56,0.64,1) both; }
@keyframes trophyBounce { from{transform:scale(0) rotate(-20deg);opacity:0} to{transform:scale(1) rotate(0deg);opacity:1} }

.complete-title { font-family: var(--font-display); font-size: 1.8rem; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 1.5rem; }

.complete-stats-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.6rem; margin-bottom: 1.5rem; }
.complete-stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 0.5rem; }
.complete-stat-val { font-family: var(--font-display); font-size: 1.5rem; font-weight: 800; color: var(--primary); display: block; margin-bottom: 0.2rem; }
.complete-stat-lbl { font-size: 0.7rem; color: var(--text-2); }
.complete-actions { display: flex; flex-direction: column; gap: 0.6rem; }

/* ════════════════════════════════
   STATS
════════════════════════════════ */
.stats-content { flex: 1; overflow-y: auto; padding: 1rem; display: flex; flex-direction: column; gap: 0.85rem; overscroll-behavior: contain; }
.stats-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem; }
.stats-card h3 { font-family: var(--font-display); font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-3); margin-bottom: 1rem; }
.stats-nums { display: grid; grid-template-columns: repeat(3,1fr); gap: 0.5rem; }
.stat-num-val { font-family: var(--font-display); font-size: 1.6rem; font-weight: 800; display: block; }
.stat-num-lbl { font-size: 0.7rem; color: var(--text-2); }
.stat-item { text-align: center; }

.weekly-chart { display: flex; align-items: flex-end; gap: 0.35rem; height: 90px; }
.chart-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 0.3rem; height: 100%; justify-content: flex-end; }
.chart-val { font-size: 0.62rem; font-weight: 700; color: var(--text-2); min-height: 1em; }
.chart-bar { width: 100%; background: linear-gradient(to top, var(--primary), var(--gold)); border-radius: 4px 4px 2px 2px; min-height: 3px; max-height: 60px; transition: height 0.6s cubic-bezier(0.4,0,0.2,1); }
.chart-day { font-size: 0.62rem; color: var(--text-3); font-weight: 600; }

.mastery-list { display: flex; flex-direction: column; gap: 0.55rem; }
.mastery-row { display: flex; align-items: center; gap: 0.6rem; }
.mastery-lbl { font-size: 0.76rem; color: var(--text-2); width: 70px; flex-shrink: 0; text-transform: capitalize; }
.mastery-track { flex: 1; height: 6px; background: var(--surface-3); border-radius: 99px; overflow: hidden; }
.mastery-fill { height: 100%; border-radius: 99px; transition: width 0.7s cubic-bezier(0.4,0,0.2,1); min-width: 0; }
.mastery-count { font-size: 0.7rem; color: var(--text-3); width: 28px; text-align: right; flex-shrink: 0; }

/* ════════════════════════════════
   PROFILE
════════════════════════════════ */
.profile-content { flex: 1; overflow-y: auto; padding: 1rem; display: flex; flex-direction: column; gap: 0.85rem; overscroll-behavior: contain; }
.profile-hero { background: linear-gradient(135deg, var(--surface) 0%, #1a1210 100%); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.75rem 1.25rem; text-align: center; }
.profile-avatar { width: 72px; height: 72px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--gold)); display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 1.8rem; font-weight: 800; color: white; margin: 0 auto 0.75rem; box-shadow: 0 8px 24px rgba(245,99,58,0.3); }
.profile-username { font-family: var(--font-display); font-size: 1.4rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 1.25rem; }
.profile-stats-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 0.5rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.profile-stat-val { font-family: var(--font-display); font-size: 1.3rem; font-weight: 800; display: block; }
.profile-stat-lbl { font-size: 0.7rem; color: var(--text-2); }
.profile-stat { text-align: center; }

.achievements-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0.6rem; }
.achievement-item { display: flex; flex-direction: column; align-items: center; gap: 0.3rem; padding: 0.7rem 0.4rem; background: var(--surface-2); border-radius: var(--radius-sm); border: 1px solid var(--border); transition: all 0.15s; }
.achievement-item.locked { opacity: 0.32; filter: grayscale(1); }
.achievement-icon { font-size: 1.4rem; }
.achievement-name { font-size: 0.58rem; font-weight: 600; color: var(--text-2); text-align: center; line-height: 1.2; }

.leaderboard-list { display: flex; flex-direction: column; gap: 0.4rem; }
.leaderboard-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.65rem 0.85rem; background: var(--surface-2); border-radius: var(--radius-sm); }
.lb-rank { font-family: var(--font-display); font-size: 1rem; font-weight: 800; width: 28px; text-align: center; flex-shrink: 0; }
.lb-rank.gold   { color: #FFD700; }
.lb-rank.silver { color: #C0C0C0; }
.lb-rank.bronze { color: #CD7F32; }
.lb-name { flex: 1; font-size: 0.87rem; font-weight: 500; }
.lb-xp { font-family: var(--font-display); font-size: 0.83rem; font-weight: 700; color: var(--text-2); }
.logout-btn { color: var(--wrong) !important; border-color: rgba(255,77,109,0.3) !important; }

/* ── Utilities ── */
.shake { animation: wrongShake 0.35s ease !important; }
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 99px; }

/* ════════════════════════════════
   RESPONSIVE — Desktop/Tablet
════════════════════════════════ */
@media (min-width: 600px) {
  body { background: #060608; display: flex; justify-content: center; align-items: flex-start; padding: 1.5rem; }
  body::before { content: ''; position: fixed; inset: 0; background: radial-gradient(ellipse at 20% 50%, rgba(245,99,58,0.04), transparent 60%), radial-gradient(ellipse at 80% 20%, rgba(0,201,167,0.03), transparent 50%); pointer-events: none; }
  #app { box-shadow: 0 0 0 1px var(--border), 0 32px 80px rgba(0,0,0,0.7); border-radius: var(--radius-lg); overflow: hidden; }
}

@media (min-width: 600px) and (min-height: 700px) { body { align-items: center; } }

@media (hover: none) {
  .action-card:hover { transform: none; border-color: var(--border); }
  .btn-option:hover:not(:disabled) { transform: none; }
}