/* =========================================================
   COMPONENTS — buttons, navbar, footer, cards, forms, badges
   ========================================================= */

/* ---------- Buttons ---------- */
.btn{
  position:relative; overflow:hidden;
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px; border-radius:var(--radius-full);
  font-family:var(--font-alt); font-weight:600; font-size:.95rem;
  transition:transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  white-space:nowrap;
}
.btn:active{ transform:scale(.97); }
.btn-primary{
  background:var(--accent-gradient); color:#04070a;
  box-shadow:0 6px 24px rgba(0,229,255,.25);
}
.btn-primary:hover{ box-shadow:0 10px 34px rgba(124,58,237,.4); transform:translateY(-2px); }
.btn-secondary{
  background:var(--glass-bg-strong); color:var(--color-text-primary);
  border:1px solid var(--glass-border);
}
.btn-secondary:hover{ background:var(--color-surface-2); border-color:var(--color-border-strong); transform:translateY(-2px); }
.btn-ghost{ background:transparent; color:var(--color-text-primary); border:1px solid var(--color-border); }
.btn-ghost:hover{ border-color:var(--accent-cyan); color:var(--accent-cyan); }
.btn-sm{ padding:9px 18px; font-size:.85rem; }
.btn-lg{ padding:16px 34px; font-size:1.02rem; }
.btn-block{ width:100%; }
.btn-icon{ width:42px; height:42px; padding:0; border-radius:var(--radius-full); }

/* Ripple */
.ripple{ position:absolute; border-radius:50%; transform:scale(0); animation:ripple-anim .6s linear; background:rgba(255,255,255,.35); pointer-events:none; }
@keyframes ripple-anim{ to{ transform:scale(4); opacity:0; } }

/* ---------- Navbar ---------- */
.navbar{
  position:sticky; top:0; z-index:1000;
  height:var(--header-height);
  display:flex; align-items:center;
  background:rgba(0,0,0,.65);
  backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--color-border);
  transition:background var(--transition-base), border-color var(--transition-base);
}
.navbar.is-scrolled{ background:rgba(0,0,0,.9); box-shadow:var(--shadow-sm); }
.navbar__inner{ display:flex; align-items:center; justify-content:space-between; width:100%; gap:24px; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-weight:700; font-size:1.25rem; }
.brand__mark{
  width:34px; height:34px; border-radius:10px; background:var(--accent-gradient);
  display:flex; align-items:center; justify-content:center; font-size:1rem; color:#04070a; font-weight:800;
  box-shadow:var(--shadow-glow-cyan);
}
.brand__mark-img{
  width:36px; height:36px; border-radius:10px; object-fit:cover; flex-shrink:0;
  box-shadow:var(--shadow-glow-cyan);
}
.nav-links{ display:flex; align-items:center; gap:4px; }
.nav-links a{
  padding:10px 16px; border-radius:var(--radius-full); font-size:.92rem; color:var(--color-text-secondary);
  font-weight:500; transition:color var(--transition-fast), background var(--transition-fast);
  position:relative;
}
.nav-links a:hover,.nav-links a.active{ color:var(--color-text-primary); background:var(--glass-bg); }
.navbar__actions{ display:flex; align-items:center; gap:10px; }
.nav-toggle{
  display:none; width:42px; height:42px; border-radius:var(--radius-md); align-items:center; justify-content:center;
  background:var(--glass-bg); border:1px solid var(--glass-border);
}
.nav-toggle span{ display:block; width:20px; height:2px; background:var(--color-text-primary); position:relative; transition:background var(--transition-fast); }
.nav-toggle span::before,.nav-toggle span::after{ content:''; position:absolute; left:0; width:20px; height:2px; background:var(--color-text-primary); transition:transform var(--transition-fast); }
.nav-toggle span::before{ top:-6px; } .nav-toggle span::after{ top:6px; }
.nav-toggle.is-active span{ background:transparent; }
.nav-toggle.is-active span::before{ transform:translateY(6px) rotate(45deg); }
.nav-toggle.is-active span::after{ transform:translateY(-6px) rotate(-45deg); }

.mobile-menu{
  position:fixed; inset:var(--header-height) 0 0 0; z-index:999;
  background:rgba(0,0,0,.97); backdrop-filter:blur(20px);
  transform:translateY(-12px); opacity:0; pointer-events:none;
  transition:opacity var(--transition-base), transform var(--transition-base);
  overflow-y:auto; padding:32px 24px;
}
.mobile-menu.is-open{ transform:translateY(0); opacity:1; pointer-events:auto; }
.mobile-menu a{ display:block; padding:16px 4px; font-size:1.2rem; border-bottom:1px solid var(--color-border); color:var(--color-text-primary); }
.mobile-menu .btn{ margin-top:24px; }

/* ---------- Search Bar ---------- */
.search-bar{
  display:flex; align-items:center; gap:10px;
  background:var(--glass-bg-strong); border:1px solid var(--glass-border);
  border-radius:var(--radius-full); padding:8px 8px 8px 20px;
  transition:border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.search-bar:focus-within{ border-color:var(--accent-cyan); box-shadow:0 0 0 4px rgba(0,229,255,.12); }
.search-bar input{ flex:1; background:transparent; border:none; outline:none; color:var(--color-text-primary); font-size:1rem; padding:10px 0; }
.search-bar input::placeholder{ color:var(--color-text-muted); }
.search-bar__icon{ color:var(--color-text-muted); flex-shrink:0; }
.search-suggestions{
  position:absolute; top:calc(100% + 10px); left:0; right:0; z-index:60;
  background:var(--color-surface-1); border:1px solid var(--glass-border); border-radius:var(--radius-md);
  box-shadow:var(--shadow-lg); max-height:360px; overflow-y:auto; display:none;
}
.search-suggestions.is-open{ display:block; }
.search-suggestions__item{ display:flex; align-items:center; gap:12px; padding:12px 16px; border-bottom:1px solid var(--color-border); transition:background var(--transition-fast); }
.search-suggestions__item:hover, .search-suggestions__item.active{ background:var(--color-surface-2); }
.search-suggestions__item:last-child{ border-bottom:none; }

/* ---------- Badges & Tags ---------- */
.badge{
  display:inline-flex; align-items:center; gap:4px;
  font-size:.72rem; font-weight:700; letter-spacing:.03em;
  padding:4px 10px; border-radius:var(--radius-full);
  text-transform:uppercase;
}
.badge-free{ background:rgba(16,185,129,.15); color:#34d399; }
.badge-paid{ background:rgba(59,130,246,.15); color:#60a5fa; }
.badge-freemium{ background:rgba(124,58,237,.18); color:#a78bfa; }
.badge-opensource{ background:rgba(0,229,255,.15); color:#22d3ee; }
.badge-featured{ background:var(--accent-gradient); color:#04070a; }
.badge-new{ background:rgba(251,191,36,.16); color:#fbbf24; }
.tag{
  display:inline-flex; align-items:center; padding:5px 12px; border-radius:var(--radius-full);
  background:var(--glass-bg); border:1px solid var(--glass-border); font-size:.8rem; color:var(--color-text-secondary);
  transition:all var(--transition-fast);
}
.tag:hover{ color:var(--color-text-primary); border-color:var(--accent-cyan); }
.tag.active{ background:var(--accent-gradient-soft); border-color:var(--accent-cyan); color:var(--accent-cyan); }

/* ---------- Card: Tool ---------- */
.tool-card{
  display:flex; flex-direction:column; gap:14px; padding:22px;
  background:var(--glass-bg); border:1px solid var(--glass-border); border-radius:var(--radius-lg);
  transition:transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  position:relative; overflow:hidden;
}
.tool-card::before{
  content:''; position:absolute; inset:0; opacity:0; background:var(--accent-gradient-soft);
  transition:opacity var(--transition-base); pointer-events:none;
}
.tool-card:hover{ transform:translateY(-6px); border-color:var(--color-border-strong); box-shadow:var(--shadow-md); }
.tool-card:hover::before{ opacity:1; }
.tool-card__top{ display:flex; align-items:flex-start; justify-content:space-between; gap:10px; position:relative; z-index:1; }
.tool-card__logo{
  width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; font-size:1.1rem; color:#04070a; flex-shrink:0;
}
.tool-card__bookmark{
  width:36px; height:36px; border-radius:var(--radius-full); display:flex; align-items:center; justify-content:center;
  background:var(--glass-bg); border:1px solid var(--glass-border); color:var(--color-text-secondary); flex-shrink:0;
  transition:all var(--transition-fast);
}
.tool-card__bookmark:hover{ color:var(--accent-cyan); border-color:var(--accent-cyan); }
.tool-card__bookmark.is-active{ color:var(--accent-cyan); background:var(--accent-gradient-soft); border-color:var(--accent-cyan); }
.tool-card__name{ font-size:1.08rem; font-weight:700; position:relative; z-index:1; display:flex; align-items:center; gap:8px; }
.tool-card__cat{ font-size:.78rem; color:var(--color-text-muted); position:relative; z-index:1; }
.tool-card__desc{ font-size:.88rem; color:var(--color-text-secondary); line-height:1.55; position:relative; z-index:1; flex:1; }
.tool-card__meta{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; position:relative; z-index:1; }
.tool-card__rating{ display:flex; align-items:center; gap:5px; font-size:.85rem; color:#fbbf24; font-weight:600; }
.tool-card__footer{ display:flex; align-items:center; gap:10px; position:relative; z-index:1; }
.tool-card__footer .btn{ flex:1; }

/* ---------- Card: Blog ---------- */
.blog-card{
  display:flex; flex-direction:column; background:var(--glass-bg); border:1px solid var(--glass-border);
  border-radius:var(--radius-lg); overflow:hidden; transition:transform var(--transition-base), box-shadow var(--transition-base);
}
.blog-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.blog-card__image{
  aspect-ratio:16/9; width:100%; position:relative; overflow:hidden; display:block;
}
.blog-card__image img{ width:100%; height:100%; object-fit:cover; display:block; transition:transform var(--transition-slow); }
.blog-card:hover .blog-card__image img{ transform:scale(1.06); }
.blog-card__body{ padding:20px; display:flex; flex-direction:column; gap:10px; flex:1; }
.blog-card__cat{ font-size:.72rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color:var(--accent-cyan); }
.blog-card__title{ font-size:1.08rem; font-weight:700; line-height:1.35; }
.blog-card__excerpt{ font-size:.88rem; color:var(--color-text-secondary); flex:1; }
.blog-card__meta{ display:flex; align-items:center; gap:10px; font-size:.78rem; color:var(--color-text-muted); flex-wrap:wrap; }
.blog-card__avatar{ width:22px; height:22px; border-radius:50%; background:var(--accent-gradient); display:flex; align-items:center; justify-content:center; font-size:.62rem; font-weight:700; color:#04070a; }

/* gradient covers for blog cards / banners (6 variants) */
.grad-0{ background:linear-gradient(135deg,#7c3aed,#00e5ff); }
.grad-1{ background:linear-gradient(135deg,#3b82f6,#7c3aed); }
.grad-2{ background:linear-gradient(135deg,#00e5ff,#3b82f6); }
.grad-3{ background:linear-gradient(135deg,#111827,#7c3aed); }
.grad-4{ background:linear-gradient(135deg,#0ea5e9,#111827); }
.grad-5{ background:linear-gradient(135deg,#7c3aed,#ec4899); }

/* ---------- Category Card ---------- */
.category-card{
  display:flex; flex-direction:column; gap:14px; padding:26px; border-radius:var(--radius-lg);
  background:var(--glass-bg); border:1px solid var(--glass-border);
  transition:all var(--transition-base);
}
.category-card:hover{ transform:translateY(-4px); border-color:var(--accent-cyan); box-shadow:var(--shadow-glow-cyan); }
.category-card__icon{
  width:52px; height:52px; border-radius:14px; background:var(--accent-gradient-soft); border:1px solid var(--glass-border);
  display:flex; align-items:center; justify-content:center; color:var(--accent-cyan);
}
.category-card__count{ font-size:.78rem; color:var(--color-text-muted); }

/* ---------- Stats ---------- */
.stat{ text-align:center; }
.stat__num{ font-family:var(--font-display); font-size:clamp(1.8rem,4vw,3rem); font-weight:800; }
.stat__label{ color:var(--color-text-secondary); font-size:.9rem; margin-top:6px; }

/* ---------- Forms ---------- */
.form-group{ display:flex; flex-direction:column; gap:8px; margin-bottom:20px; }
.form-group label{ font-size:.88rem; font-weight:600; color:var(--color-text-primary); }
.form-control{
  width:100%; padding:14px 16px; border-radius:var(--radius-md);
  background:var(--color-surface-1); border:1px solid var(--color-border); color:var(--color-text-primary);
  transition:border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-control:focus{ outline:none; border-color:var(--accent-cyan); box-shadow:0 0 0 4px rgba(0,229,255,.12); }
textarea.form-control{ resize:vertical; min-height:130px; }
.form-hint{ font-size:.78rem; color:var(--color-text-muted); }
.checkbox-row{ display:flex; align-items:center; gap:10px; }
.checkbox-row input{ width:18px; height:18px; accent-color:var(--accent-cyan); }
select.form-control{ appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 16px center; padding-right:40px; }

/* ---------- Footer ---------- */
.footer{ border-top:1px solid var(--color-border); background:var(--color-bg-alt); padding-top:72px; }
.footer__grid{ display:grid; grid-template-columns:1.4fr repeat(4,1fr); gap:32px; padding-bottom:48px; }
.footer__col h4{ font-size:.9rem; margin-bottom:18px; color:var(--color-text-primary); }
.footer__col ul li{ margin-bottom:11px; }
.footer__col ul li a{ color:var(--color-text-secondary); font-size:.9rem; transition:color var(--transition-fast); }
.footer__col ul li a:hover{ color:var(--accent-cyan); }
.footer__desc{ color:var(--color-text-secondary); font-size:.9rem; max-width:280px; margin:14px 0 20px; }
.social-icons{ display:flex; gap:10px; }
.social-icons a{
  width:38px; height:38px; border-radius:var(--radius-full); background:var(--glass-bg); border:1px solid var(--glass-border);
  display:flex; align-items:center; justify-content:center; color:var(--color-text-secondary); transition:all var(--transition-fast);
}
.social-icons a:hover{ color:#04070a; background:var(--accent-gradient); border-color:transparent; }
.footer__bottom{ border-top:1px solid var(--color-border); padding:24px 0; display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:.82rem; color:var(--color-text-muted); }
.footer__bottom a{ color:var(--color-text-muted); }
.footer__bottom a:hover{ color:var(--accent-cyan); }

/* ---------- Newsletter ---------- */
.newsletter-box{
  padding:48px; border-radius:var(--radius-xl); text-align:center;
  background:linear-gradient(135deg, rgba(124,58,237,.14), rgba(0,229,255,.10));
  border:1px solid var(--glass-border); position:relative; overflow:hidden;
}
.newsletter-form{ display:flex; gap:10px; max-width:460px; margin:22px auto 0; flex-wrap:wrap; justify-content:center; }
.newsletter-form input{ flex:1; min-width:220px; padding:14px 20px; border-radius:var(--radius-full); border:1px solid var(--glass-border); background:rgba(0,0,0,.4); color:#fff; }
.newsletter-form input:focus{ outline:none; border-color:var(--accent-cyan); }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{ display:flex; align-items:center; gap:8px; font-size:.85rem; color:var(--color-text-muted); flex-wrap:wrap; }
.breadcrumbs a{ color:var(--color-text-secondary); }
.breadcrumbs a:hover{ color:var(--accent-cyan); }
.breadcrumbs .sep{ opacity:.4; }

/* ---------- Pagination ---------- */
.pagination{ display:flex; align-items:center; justify-content:center; gap:8px; margin-top:40px; flex-wrap:wrap; }
.pagination button{
  min-width:40px; height:40px; padding:0 10px; border-radius:var(--radius-md);
  background:var(--glass-bg); border:1px solid var(--glass-border); color:var(--color-text-secondary);
  transition:all var(--transition-fast);
}
.pagination button.active{ background:var(--accent-gradient); color:#04070a; border-color:transparent; font-weight:700; }
.pagination button:hover:not(.active){ border-color:var(--accent-cyan); color:var(--accent-cyan); }
.pagination button:disabled{ opacity:.4; cursor:not-allowed; }

/* ---------- Back To Top ---------- */
.back-to-top{
  position:fixed; bottom:28px; right:28px; width:48px; height:48px; border-radius:50%;
  background:var(--accent-gradient); color:#04070a; display:flex; align-items:center; justify-content:center;
  box-shadow:var(--shadow-glow-cyan); opacity:0; pointer-events:none; transform:translateY(16px);
  transition:all var(--transition-base); z-index:900;
}
.back-to-top.is-visible{ opacity:1; pointer-events:auto; transform:translateY(0); }

/* ---------- Filter Sidebar ---------- */
.filter-panel{ display:flex; flex-direction:column; gap:26px; }
.filter-group h4{ font-size:.88rem; margin-bottom:12px; text-transform:uppercase; letter-spacing:.06em; color:var(--color-text-secondary); }
.filter-option{ display:flex; align-items:center; justify-content:space-between; padding:9px 0; cursor:pointer; }
.filter-option span{ font-size:.92rem; }
.filter-option input[type="checkbox"], .filter-option input[type="radio"]{ width:17px; height:17px; accent-color:var(--accent-cyan); }
.filter-count{ font-size:.78rem; color:var(--color-text-muted); }

/* ---------- Alert / Callout ---------- */
.callout{
  padding:18px 22px; border-radius:var(--radius-md); background:var(--accent-gradient-soft);
  border:1px solid var(--glass-border); border-left:3px solid var(--accent-cyan); margin:24px 0; color:var(--color-text-primary);
}
.alert-success{ background:rgba(16,185,129,.12); border:1px solid rgba(16,185,129,.3); color:#34d399; padding:14px 18px; border-radius:var(--radius-md); }

/* ---------- Star rating display ---------- */
.stars{ color:#fbbf24; letter-spacing:2px; }

/* ---------- Table wrapper (responsive tables) ---------- */
.table-wrapper{ overflow-x:auto; margin:24px 0; border-radius:var(--radius-md); border:1px solid var(--glass-border); }
table{ width:100%; border-collapse:collapse; min-width:520px; }
table th,table td{ padding:14px 18px; text-align:left; border-bottom:1px solid var(--color-border); font-size:.9rem; }
table th{ background:var(--color-surface-1); font-family:var(--font-alt); text-transform:uppercase; font-size:.75rem; letter-spacing:.05em; color:var(--color-text-secondary); }
table tr:last-child td{ border-bottom:none; }

/* ---------- Ad Placeholder ---------- */
.ad-slot{
  border:1px dashed var(--color-border-strong); border-radius:var(--radius-md);
  display:flex; align-items:center; justify-content:center; color:var(--color-text-muted);
  font-size:.78rem; text-transform:uppercase; letter-spacing:.08em; background:var(--color-surface-1);
  min-height:100px;
}
.ad-slot--banner{ min-height:120px; }
.ad-slot--sidebar{ min-height:280px; }

/* ---------- Progress bar (reading progress) ---------- */
.reading-progress{ position:fixed; top:0; left:0; height:3px; background:var(--accent-gradient); z-index:1100; width:0%; transition:width 60ms linear; }

/* ---------- Toast ---------- */
.toast{
  position:fixed; bottom:24px; left:50%; transform:translateX(-50%) translateY(20px);
  background:var(--color-surface-2); border:1px solid var(--glass-border); padding:14px 22px; border-radius:var(--radius-full);
  box-shadow:var(--shadow-lg); opacity:0; pointer-events:none; transition:all var(--transition-base); z-index:1200; font-size:.9rem;
  display:flex; align-items:center; gap:10px;
}
.toast.is-visible{ opacity:1; transform:translateX(-50%) translateY(0); }