/* ================================================================
   TechWorld Labs — page.css
   Tutorial pages (cypress, selenium, java, etc.) — page-specific
   ================================================================ */

/* ── Back to top ── */
#back-to-top{position:fixed;bottom:24px;right:24px;width:40px;height:40px;background:var(--bg3);border:1px solid var(--border2);border-radius:10px;color:var(--accent);font-size:16px;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;transition:var(--transition);z-index:600;box-shadow:0 4px 16px rgba(0,0,0,.3)}
#back-to-top.visible{opacity:1;pointer-events:auto}
#back-to-top:hover{background:var(--bg4);border-color:var(--accent);transform:translateY(-2px)}

/* ── Sidebar topic count badge ── */
.sidebar-count{margin-left:auto;font-family:var(--font-mono);font-size:10px;color:var(--text4);background:var(--bg4);padding:1px 6px;border-radius:8px}

/* ── Breadcrumb ── */
.topic-breadcrumb{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text3);font-family:var(--font-mono);margin-bottom:20px}
.topic-breadcrumb a{color:var(--accent)}
.topic-breadcrumb a:hover{text-decoration:underline}
.topic-breadcrumb .sep{color:var(--text4)}

/* ── Mobile topics floating button ── */
.mobile-topics-btn{display:flex;position:fixed;bottom:24px;left:24px;height:40px;background:var(--accent);color:#000;font-family:var(--font-display);font-size:12px;font-weight:700;padding:0 16px;border:none;border-radius:10px;gap:6px;align-items:center;justify-content:center;z-index:601;box-shadow:0 4px 20px rgba(0,180,255,0.35);transition:var(--transition);cursor:pointer}
.mobile-topics-btn:hover{background:#1ac4ff;transform:translateY(-2px);box-shadow:0 6px 24px rgba(0,180,255,0.45)}
.mobile-topics-btn:active{transform:translateY(-1px)}

/* Topic sections visibility */
.topic-section{display:none}
.topic-section.active{display:block}

/* Hide on desktop (1025px and above) */
@media(min-width:1025px){
  .mobile-topics-btn{display:none}
}

@media(max-width:1024px){
  .mobile-topics-btn{display:flex}
}

@media(max-width:768px){
  .mobile-topics-btn{display:flex}
  #back-to-top{bottom:72px}
  /* Give sections more breathing room */
  .topic-section{padding-bottom:8px}
}

@media(max-width:600px){
  /* Topic section spacing */
  .topic-section{padding-bottom:4px}
  /* Sidebar progress */
  .sidebar-progress{margin:0 14px 2px}
}

@media(max-width:480px){
  .mobile-topics-btn{bottom:20px;left:14px;height:38px;font-size:11px;padding:0 14px;border-radius:9px}
  #back-to-top{bottom:68px;right:14px;width:38px;height:38px;font-size:15px;border-radius:9px}
  /* Sidebar links easier to tap */
  .sidebar-link{padding:10px 18px 10px 16px;font-size:13px}
  .sidebar-section-label{padding:14px 18px 4px}
  .sidebar-header{padding:16px 16px 10px}
}

@media(max-width:360px){
  .mobile-topics-btn{bottom:16px;left:12px;height:34px;font-size:10.5px;padding:0 12px}
  #back-to-top{bottom:60px;right:12px;width:34px;height:34px;font-size:14px}
  .sidebar-link{padding:9px 14px 9px 14px;font-size:12.5px}
}

/* ── Sidebar progress ── */
.sidebar-progress{height:2px;background:var(--border);margin:0 20px 2px;border-radius:1px;overflow:hidden}
.sidebar-progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));width:0%;transition:width .3s ease;border-radius:1px}

/* ── Interview Page Enhancements ── */
.interview-hero{background:linear-gradient(135deg,rgba(0,180,255,0.1),rgba(0,255,178,0.05));border:1px solid var(--border);border-radius:12px;padding:40px 24px;margin-bottom:40px;text-align:center}
.interview-hero h1{font-size:32px;margin-bottom:12px;color:#F0F4F8}
.interview-hero p{color:var(--text2);font-size:16px;margin-bottom:24px}
.interview-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px}
.stat-box{background:rgba(0,180,255,0.08);border:1px solid var(--border);border-radius:8px;padding:16px;text-align:center}
.stat-number{font-size:28px;font-weight:700;color:#00B4FF}
.stat-label{font-size:12px;color:var(--text3);text-transform:uppercase;letter-spacing:1px;margin-top:8px}

/* ── Interview Navigation ── */
.interview-nav{display:flex;gap:20px;justify-content:space-between;align-items:center;margin-top:48px;padding:24px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.nav-container{flex:1;display:flex;align-items:center}
.nav-container.prev{justify-content:flex-start}
.nav-container.next{justify-content:flex-end}
.nav-btn{padding:16px 24px;background:rgba(0,180,255,0.08);border:1.5px solid var(--border);border-radius:12px;color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:12px;min-height:56px;text-decoration:none}
.nav-btn:hover{background:rgba(0,180,255,0.15);border-color:#00B4FF;color:#00B4FF}
.nav-btn:disabled{opacity:0.4;cursor:not-allowed;border-color:var(--border);background:rgba(0,0,0,0.2)}
.nav-btn:disabled:hover{background:rgba(0,0,0,0.2);border-color:var(--border);color:var(--text)}
.nav-label{font-size:13px;color:var(--text3);text-transform:uppercase;letter-spacing:0.5px}
.nav-title{font-size:16px;font-weight:600;color:#F0F4F8}
.nav-btn.prev{flex-direction:row}
.nav-btn.next{flex-direction:row-reverse}
.nav-arrow{font-size:18px;color:#00B4FF}

/* ── Interview Search & Filter ── */
.interview-controls{display:flex;gap:12px;margin-bottom:32px;flex-wrap:wrap;align-items:center;justify-content:center}
.interview-search-wrapper{width:100%;margin-bottom:40px}
.search-box{width:100%;background:var(--bg3);border:2px solid var(--border);border-radius:14px;padding:24px 28px;color:var(--text);font-size:16px;box-shadow:0 4px 16px rgba(0,0,0,0.25);transition:all .3s ease;min-height:56px;display:flex;align-items:center}
.search-box:focus{outline:none;border-color:#00B4FF;box-shadow:0 0 0 4px rgba(0,180,255,0.15),0 6px 20px rgba(0,180,255,0.25);background:rgba(0,180,255,0.04)}
.search-box::placeholder{color:var(--text3)}
.filter-btn{padding:12px 18px;border:1.5px solid var(--border);border-radius:10px;background:transparent;color:var(--text2);cursor:pointer;font-size:14px;font-weight:500;transition:all .2s ease}
.filter-btn.active{background:#00B4FF;color:#000;border-color:#00B4FF;font-weight:700}
.filter-btn:hover{background:rgba(0,180,255,0.1);border-color:#00B4FF;color:var(--text)}

/* ── FAQ Accordion Cards ── */
.faq-section{background:var(--bg3);border:1.5px solid var(--border);border-radius:14px;margin-bottom:16px;overflow:hidden;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 8px rgba(0,0,0,0.15);padding:24px 28px;position:relative}
.faq-section:hover{border-color:#00B4FF;background:rgba(0,180,255,0.06);box-shadow:0 6px 16px rgba(0,180,255,0.2)}
.faq-question{display:flex;align-items:flex-start;gap:16px;margin-bottom:16px}
.question-number{display:inline-flex;align-items:center;justify-content:center;min-width:48px;height:36px;background:#00B4FF;color:#000;border-radius:8px;font-size:13px;font-weight:700;flex-shrink:0}
.faq-section h3{margin:0;font-size:17px;color:#F0F4F8;font-weight:600;flex:1;text-align:left;line-height:1.5}
.faq-toggle{color:#00B4FF;font-size:20px;transition:transform .3s ease;flex-shrink:0;display:none}
.faq-section.active .faq-toggle{transform:rotate(180deg)}
.faq-answer{color:#C0C8D0;line-height:1.7;font-size:15px;margin-bottom:16px}
.question-tags{display:flex;flex-wrap:wrap;gap:8px}
.question-tag{display:inline-block;background:rgba(0,180,255,0.12);color:#00B4FF;padding:6px 12px;border-radius:6px;font-size:12px;font-weight:500;border:1px solid rgba(0,180,255,0.3)}

/* ── Difficulty Badges ── */
.difficulty-badge{display:inline-block;padding:4px 10px;border-radius:6px;font-size:11px;font-weight:700;letter-spacing:0.5px;margin-bottom:12px}
.difficulty-beginner{background:rgba(34,197,94,0.15);color:#22C55E;border:1px solid rgba(34,197,94,0.3)}
.difficulty-intermediate{background:rgba(251,146,60,0.15);color:#FB923C;border:1px solid rgba(251,146,60,0.3)}
.difficulty-advanced{background:rgba(239,68,68,0.15);color:#EF4444;border:1px solid rgba(239,68,68,0.3)}