/* ========================================
   CODEMASTER UNIFIED THEME (HOME-STYLE)
   ======================================== */

:root {
  --primary: #6C5DD3;
  --secondary: #FF754C;
  --accent: #FFCD38;
  --success: #33D69F;
  --bg: #F4F5F9;
  --surface: rgba(255, 255, 255, 0.84);
  --text: #11142D;
  --text-muted: #808191;
  --border: rgba(108, 93, 211, 0.14);
  --shadow-clay: 18px 18px 36px rgba(174,174,192,.28), -18px -18px 36px rgba(255,255,255,.92), inset 2px 2px 4px rgba(255,255,255,.6);
  --header-height: 70px;
}

*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:'Be Vietnam Pro','Inter',sans-serif;
  color:var(--text);
  background:var(--bg);
  background-image:radial-gradient(circle at 10% 20%, rgba(108,93,211,.05) 0%, transparent 20%),radial-gradient(circle at 90% 80%, rgba(255,117,76,.05) 0%, transparent 20%);
  line-height:1.6;
  padding-top:var(--header-height);
  overflow-x:hidden;
}

h1,h2,h3,h4,h5,h6{font-family:'Nunito','Space Grotesk',sans-serif;color:var(--text)}
p,span,label,small{color:var(--text-muted)}
a{color:var(--primary);text-decoration:none}a:hover{color:var(--secondary)}

.card,.auth-card,.feature-card,.sidebar-card,.post-card,.create-post-card,.lesson-header,.section-card,.tutorial-step,.tutorial-card,.leaderboard-list,.leaderboard-item,.profile-header,.stat-box,.current-user-rank,#edit-modal>div{
  background:var(--surface);
  border:1px solid rgba(255,255,255,.7);
  border-radius:24px;
  box-shadow:var(--shadow-clay);
  backdrop-filter:blur(14px);
}

.btn,button,.clay-btn,.btn-primary,.btn-secondary,.header-auth-btn,.mobile-auth-btn,.tab-btn{border:none;border-radius:14px;padding:10px 16px;font-weight:700;cursor:pointer}
.btn-primary,button[type="submit"],.clay-btn.btn-primary,.tab-btn.active{background:var(--primary);color:#fff}
.btn-secondary,.clay-btn.btn-secondary,.tab-btn{background:#fff;color:var(--primary)}

input,textarea,select{width:100%;padding:11px 13px;border-radius:12px;border:1px solid var(--border);background:rgba(255,255,255,.94);color:var(--text)}
input::placeholder,textarea::placeholder{color:#9CA3AF}

.main-header,.navbar,header{background:rgba(255,255,255,.84);backdrop-filter:blur(12px);border-bottom:1px solid rgba(108,93,211,.12)}

.auth-container{width:min(520px,92vw);margin:28px auto}.form-group{margin-bottom:14px}.input-wrapper{position:relative}.input-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:#9CA3AF}
.form-group input[type="text"],.form-group input[type="email"],.form-group input[type="password"]{padding-left:40px}

.learn-page-container{max-width:1320px;margin:0 auto;padding:24px 16px 40px}
.learn-hero{border-radius:24px;padding:34px 24px;margin-bottom:20px;background:linear-gradient(145deg, rgba(108,93,211,.12), rgba(255,117,76,.10));border:1px solid rgba(255,255,255,.78);box-shadow:var(--shadow-clay);text-align:center}
.learn-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:18px}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.feature-card{padding:20px}

.lesson-page-container{max-width:1100px;margin:0 auto;padding:24px 16px 36px}
.lesson-header{padding:28px 22px;margin-bottom:18px}
.lesson-title{font-size:clamp(1.65rem,4vw,2.4rem)}
.lesson-progress-text{font-weight:800;font-size:1.05rem}.lesson-progress-text.is-done{color:var(--success)!important}.lesson-progress-text.is-progress{color:#F59E0B!important}
.lesson-sections{display:grid;gap:12px}
.section-card{padding:16px;display:flex;align-items:center;gap:14px;color:inherit}
.section-icon{width:58px;height:58px;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;background:var(--primary)}
.section-card.completed .section-icon{background:var(--success)}

.feed-container{max-width:920px;margin:0 auto;padding:22px 16px 42px}
.create-post-card,.post-card{padding:20px;margin-bottom:16px}
.create-post-layout{display:flex;gap:12px}.create-post-form-wrap{flex:1}.create-post-input{margin-bottom:8px}.create-post-textarea{min-height:90px;resize:vertical}.create-post-actions{display:flex;justify-content:flex-end;margin-top:10px}
.post-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.post-author-name{margin:0;font-size:1.03rem;color:var(--text)}.post-meta-time{font-size:.82rem;color:var(--text-muted)}.post-delete-wrap{margin-left:auto}.post-delete-btn{background:transparent;border:0;color:var(--secondary)}
.post-title{margin:0 0 8px;color:var(--text)}.post-content{color:#4B5563;white-space:pre-wrap;margin-bottom:10px}
.post-images{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;margin-bottom:10px}.post-image-item{width:100%;border-radius:10px}
.post-actions{display:flex;gap:12px;padding-top:10px;border-top:1px dashed rgba(108,93,211,.2)}.action-btn{border:0;background:transparent;color:#6B7280;display:inline-flex;align-items:center;gap:8px;font-weight:600}.action-btn.liked{color:#EF4444}

.leaderboard-container,.tutorial-container{max-width:1200px;margin:0 auto;padding:28px 16px 40px}
.page-header,.tutorial-header{text-align:center;margin-bottom:20px;padding:24px;border-radius:24px;background:linear-gradient(145deg, rgba(108,93,211,.12), rgba(255,117,76,.1));border:1px solid rgba(255,255,255,.75);box-shadow:var(--shadow-clay)}
.tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:14px}
.leaderboard-item{display:grid;grid-template-columns:64px 1fr auto;gap:12px;align-items:center;padding:14px 16px;border-radius:0;box-shadow:none;border:0;border-bottom:1px dashed rgba(108,93,211,.2)}
.user-info{display:flex;align-items:center;gap:10px}.points{color:var(--primary);font-weight:800}
.profile-header{max-width:1200px;margin:18px auto;padding:52px 20px 30px;text-align:center}.profile-avatar{width:132px;height:132px;border-radius:999px;object-fit:cover}.profile-name{font-size:clamp(1.9rem,4vw,2.5rem)}.profile-stats{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:18px}.stat-box{min-width:120px;padding:10px 14px}.stat-num{color:var(--primary);font-weight:800}

.tutorial-step{padding:20px;margin-bottom:14px}.step-title{display:flex;align-items:center;gap:10px;color:var(--text);font-size:1.15rem}.step-num{width:34px;height:34px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;color:#fff;background:var(--primary)}.step-content{color:#5F6578;padding-left:44px}
.avatar{width:48px;height:48px;border-radius:999px;object-fit:cover}

@media (max-width:1024px){.learn-layout{grid-template-columns:1fr}}
@media (max-width:768px){body{padding-top:66px}.create-post-layout{flex-direction:column}.step-content{padding-left:0}.leaderboard-item{grid-template-columns:44px 1fr}}