/* ===== SmartTools Hub — Design System ===== */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&display=swap');

:root {
  --bg:        #0d0f14;
  --bg2:       #13161e;
  --bg3:       #1a1e2a;
  --border:    #252b3b;
  --accent:    #4f8ef7;
  --accent2:   #7c5cfc;
  --gold:      #f5c842;
  --green:     #3ecf8e;
  --red:       #f4605a;
  --text:      #e8eaf2;
  --muted:     #7a8099;
  --radius:    12px;
  --radius-lg: 20px;
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --shadow:    0 4px 32px rgba(0,0,0,.45);
  --glow:      0 0 30px rgba(79,142,247,.18);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Typography ── */
h1,h2,h3,h4,h5 { font-family: var(--font-head); line-height: 1.2; }
h1 { font-size: clamp(1.9rem,4vw,2.8rem); font-weight: 800; }
h2 { font-size: clamp(1.4rem,3vw,2rem);   font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p  { color: var(--muted); }
a  { color: var(--accent); text-decoration: none; }
a:hover { color: #fff; }

/* ── Layout ── */
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.section    { padding: 72px 0; }

/* ── Navbar ── */
.navbar {
  position: sticky; top: 0; z-index: 999;
  background: rgba(13,15,20,.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
}
.nav-inner {
  max-width: 1180px; margin: 0 auto;
  display: flex; align-items: center; gap: 12px;
  height: 62px;
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.25rem; font-weight: 800;
  color: #fff; white-space: nowrap;
  display: flex; align-items: center; gap: 8px;
}
.nav-logo span { color: var(--accent); }
.nav-logo svg { width:26px;height:26px; }

.nav-links {
  display: flex; align-items: center; gap: 4px;
  list-style: none; margin-left: auto;
}
.nav-links a {
  color: var(--muted); font-size: .9rem; font-weight: 500;
  padding: 6px 12px; border-radius: 8px;
  transition: color .2s, background .2s;
}
.nav-links a:hover, .nav-links a.active {
  color: #fff; background: var(--bg3);
}

.nav-hamburger {
  display: none; background: none; border: none;
  color: var(--text); cursor: pointer; padding: 6px;
  margin-left: auto;
}
.nav-hamburger svg { width:22px;height:22px; }

@media(max-width:768px){
  .nav-links { display:none; }
  .nav-links.open {
    display:flex; flex-direction:column; align-items:flex-start;
    position:fixed; top:62px; left:0; right:0;
    background:var(--bg2); border-bottom:1px solid var(--border);
    padding:16px 20px; gap:4px;
  }
  .nav-hamburger { display:block; }
}

/* ── Hero ── */
.hero {
  padding: 96px 0 72px;
  text-align: center;
  background: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(79,142,247,.15) 0%, transparent 70%);
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(79,142,247,.12); border: 1px solid rgba(79,142,247,.3);
  color: var(--accent); font-size: .8rem; font-weight: 600;
  padding: 4px 14px; border-radius: 100px; margin-bottom: 20px;
  letter-spacing: .04em; text-transform: uppercase;
}
.hero h1 { margin-bottom: 16px; color: #fff; }
.hero h1 em { font-style:normal; color: var(--accent); }
.hero p   { font-size: 1.1rem; max-width: 560px; margin: 0 auto 36px; }

.search-bar {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 100px; padding: 6px 6px 6px 20px;
  max-width: 520px; margin: 0 auto;
  box-shadow: var(--shadow);
  transition: border-color .2s, box-shadow .2s;
}
.search-bar:focus-within {
  border-color: var(--accent);
  box-shadow: var(--glow);
}
.search-bar input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--text); font-family: var(--font-body); font-size: .95rem;
}
.search-bar input::placeholder { color: var(--muted); }
.btn-search {
  background: var(--accent); color: #fff;
  border: none; border-radius: 100px; cursor: pointer;
  padding: 8px 22px; font-family: var(--font-head);
  font-size: .85rem; font-weight: 700; letter-spacing:.02em;
  transition: background .2s, transform .15s;
}
.btn-search:hover { background: #3a7aef; transform: scale(1.03); }

/* ── Category Pills ── */
.cat-pills {
  display: flex; flex-wrap: wrap; gap: 8px;
  justify-content: center; margin-bottom: 40px;
}
.pill {
  background: var(--bg2); border: 1px solid var(--border);
  color: var(--muted); font-size: .82rem; font-weight: 500;
  padding: 5px 16px; border-radius: 100px; cursor: pointer;
  transition: all .2s;
}
.pill:hover, .pill.active {
  background: var(--accent); border-color: var(--accent);
  color: #fff;
}

/* ── Tool Grid ── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px,1fr));
  gap: 16px;
}
.tool-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 22px 20px;
  display: flex; flex-direction: column; gap: 10px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
  cursor: pointer; text-decoration: none;
}
.tool-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--glow);
  color: var(--text);
}
.tool-icon {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}
.tool-card h3 { font-size: 1rem; color: #fff; margin: 0; }
.tool-card p  { font-size: .82rem; color: var(--muted); margin: 0; flex:1; }
.tool-arrow   { color: var(--accent); font-size: .85rem; font-weight: 600; }

/* Color variants */
.ic-blue   { background: rgba(79,142,247,.15); }
.ic-purple { background: rgba(124,92,252,.15); }
.ic-green  { background: rgba(62,207,142,.15); }
.ic-gold   { background: rgba(245,200,66,.15); }
.ic-red    { background: rgba(244,96,90,.15); }
.ic-teal   { background: rgba(0,206,209,.15); }
.ic-pink   { background: rgba(255,105,180,.15); }
.ic-orange { background: rgba(255,140,0,.15); }

/* ── Tool Page Layout ── */
.tool-page { padding: 48px 0 80px; }
.tool-page-header {
  background: linear-gradient(135deg,rgba(79,142,247,.08),rgba(124,92,252,.06));
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 36px 40px; margin-bottom: 36px;
  display: flex; align-items: center; gap: 20px;
}
.tool-page-icon {
  width: 64px; height: 64px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; flex-shrink: 0;
}
.tool-page-header h1 { color: #fff; margin-bottom: 6px; }
.tool-page-header p  { color: var(--muted); margin: 0; max-width: 600px; }

/* ── Calculator Card ── */
.calc-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px 36px;
  box-shadow: var(--shadow);
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: .88rem; font-weight: 500;
  color: var(--text); margin-bottom: 8px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text);
  font-family: var(--font-body); font-size: .95rem;
  padding: 11px 16px; outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79,142,247,.12);
}
.form-group select option { background: var(--bg3); }

.btn-primary {
  background: var(--accent); color: #fff; border: none;
  border-radius: var(--radius); cursor: pointer;
  font-family: var(--font-head); font-size: .95rem; font-weight: 700;
  padding: 13px 30px; width: 100%;
  transition: background .2s, transform .15s, box-shadow .2s;
  letter-spacing: .02em;
}
.btn-primary:hover {
  background: #3a7aef; transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79,142,247,.3);
}
.btn-secondary {
  background: var(--bg3); color: var(--text); border: 1px solid var(--border);
  border-radius: var(--radius); cursor: pointer;
  font-family: var(--font-head); font-size: .9rem; font-weight: 600;
  padding: 11px 24px;
  transition: background .2s, border-color .2s;
}
.btn-secondary:hover { background: var(--border); border-color: var(--accent); }

.result-box {
  background: var(--bg3); border: 1px solid var(--accent);
  border-radius: var(--radius); padding: 20px 24px; margin-top: 20px;
  display: none;
}
.result-box.show { display: block; }
.result-label { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing:.08em; margin-bottom: 6px; }
.result-value { font-family: var(--font-head); font-size: 2rem; font-weight: 800; color: var(--green); }
.result-value.accent { color: var(--accent); }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 16px; }
.result-item { background: var(--bg2); border-radius: var(--radius); padding: 14px 16px; }
.result-item .rl { font-size:.78rem; color:var(--muted); margin-bottom:4px; }
.result-item .rv { font-family:var(--font-head); font-weight:700; color:#fff; font-size:1.05rem; }

/* ── 2-col layout ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media(max-width:700px){ .two-col { grid-template-columns:1fr; } }
.three-col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
@media(max-width:800px){ .three-col { grid-template-columns:1fr 1fr; } }
@media(max-width:500px){ .three-col { grid-template-columns:1fr; } }

/* ── Content Sections ── */
.content-section { margin-top: 56px; }
.content-section h2 {
  color: #fff; margin-bottom: 16px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.content-section p, .content-section li { color: var(--muted); }
.content-section ul, .content-section ol { padding-left: 20px; }
.content-section li { margin-bottom: 6px; }

/* ── FAQ ── */
.faq-list { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.faq-item {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.faq-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px; cursor: pointer; font-weight: 600; color: #fff;
  user-select: none;
}
.faq-q svg { transition: transform .3s; flex-shrink:0; }
.faq-item.open .faq-q svg { transform: rotate(180deg); }
.faq-a {
  padding: 0 20px; max-height: 0; overflow: hidden;
  transition: max-height .35s ease, padding .35s;
  color: var(--muted);
}
.faq-item.open .faq-a { max-height: 300px; padding: 0 20px 16px; }

/* ── Related Tools ── */
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px,1fr));
  gap: 12px; margin-top: 20px;
}
.related-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px;
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--text);
  transition: border-color .2s, transform .2s;
}
.related-card:hover { border-color: var(--accent); transform: translateY(-2px); color: var(--text); }
.related-card .ri { font-size: 1.2rem; }
.related-card span { font-size: .88rem; font-weight: 500; }

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: .82rem; color: var(--muted); margin-bottom: 24px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { opacity: .4; }

/* ── Stats Bar ── */
.stats-bar {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr));
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; margin: 56px 0;
}
.stat-item {
  background: var(--bg2); padding: 24px 20px; text-align: center;
}
.stat-num {
  font-family: var(--font-head); font-size: 2rem; font-weight: 800;
  color: var(--accent); display: block;
}
.stat-lbl { font-size: .82rem; color: var(--muted); }

/* ── Blog Cards ── */
.blog-grid {
  display: grid; grid-template-columns: repeat(auto-fill,minmax(300px,1fr));
  gap: 20px; margin-top: 20px;
}
.blog-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: border-color .2s, transform .2s;
  text-decoration: none; color: var(--text);
  display:flex; flex-direction:column;
}
.blog-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.blog-card-body { padding: 22px; flex:1; display:flex; flex-direction:column; gap:8px; }
.blog-tag {
  display:inline-block; background: rgba(79,142,247,.12);
  color:var(--accent); font-size:.75rem; font-weight:600;
  padding:3px 10px; border-radius:100px;
}
.blog-card h3 { color:#fff; font-size:.95rem; }
.blog-card p  { color:var(--muted); font-size:.83rem; flex:1; }
.blog-meta    { display:flex; gap:12px; color:var(--muted); font-size:.78rem; margin-top:auto; }

/* ── Footer ── */
footer {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 56px 0 28px;
  margin-top: 80px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 48px;
}
@media(max-width:900px){ .footer-grid { grid-template-columns:1fr 1fr; } }
@media(max-width:500px){ .footer-grid { grid-template-columns:1fr; } }
.footer-brand p { font-size: .88rem; color: var(--muted); margin-top: 12px; max-width: 280px; }
.footer-col h4 {
  font-family: var(--font-head); font-size: .85rem; font-weight: 700;
  color: var(--text); margin-bottom: 14px;
  text-transform: uppercase; letter-spacing: .06em;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col li a { color: var(--muted); font-size: .87rem; transition: color .2s; }
.footer-col li a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px; font-size: .82rem; color: var(--muted);
}

/* ── Tag / Badge ── */
.badge {
  display: inline-block; font-size: .72rem; font-weight: 700;
  padding: 2px 8px; border-radius: 4px;
  text-transform: uppercase; letter-spacing: .06em;
}
.badge-new  { background: rgba(62,207,142,.15); color: var(--green); }
.badge-hot  { background: rgba(244,96,90,.15);  color: var(--red); }
.badge-free { background: rgba(79,142,247,.15); color: var(--accent); }

/* ── Alert / Note ── */
.note {
  background: rgba(79,142,247,.08); border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 18px; font-size: .9rem; color: var(--muted); margin: 20px 0;
}
.note strong { color: var(--accent); }

/* ── Utility ── */
.text-center { text-align: center; }
.text-muted  { color: var(--muted); }
.text-white  { color: #fff; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8  { margin-bottom: 8px; }
.mb-24 { margin-bottom: 24px; }
.gap-12 { gap: 12px; }
.flex  { display: flex; }
.items-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }

/* ── Input row ── */
.input-row { display: flex; gap: 12px; }
.input-row .form-group { flex: 1; }
@media(max-width:540px){ .input-row { flex-direction: column; } }

/* ── Copy button ── */
.copy-btn {
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--muted); padding: 6px 14px; border-radius: 8px;
  cursor: pointer; font-size: .8rem; font-weight: 600;
  transition: all .2s;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }
.copy-btn.copied { border-color: var(--green); color: var(--green); }

/* ── Textarea output ── */
.output-area {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px;
  font-family: 'DM Mono', monospace, var(--font-body);
  font-size: .88rem; color: var(--green); min-height: 120px;
  white-space: pre-wrap; word-break: break-all;
  line-height: 1.6; margin-top: 16px;
}

/* ── Page header for static pages ── */
.page-hero {
  padding: 64px 0 48px;
  background: radial-gradient(ellipse 60% 40% at 50% -5%, rgba(79,142,247,.12) 0%, transparent 70%);
  text-align: center;
}
.page-hero h1 { color: #fff; margin-bottom: 12px; }
.page-hero p  { max-width: 520px; margin: 0 auto; }

/* ── Contact form ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 40px; }
@media(max-width:768px){ .contact-grid { grid-template-columns:1fr; } }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.ci-item { display:flex; gap:14px; align-items:flex-start; }
.ci-icon {
  width:42px;height:42px; border-radius:10px;
  background:rgba(79,142,247,.12); display:flex; align-items:center; justify-content:center;
  font-size:1.1rem; flex-shrink:0;
}
.ci-item h4 { color:#fff; font-size:.9rem; margin-bottom:4px; }
.ci-item p  { font-size:.85rem; color:var(--muted); margin:0; }

/* ── Privacy / About prose ── */
.prose h2 { color:#fff; margin:36px 0 14px; }
.prose h3 { color:var(--text); margin:24px 0 10px; }
.prose p, .prose li { color:var(--muted); }
.prose ul, .prose ol { padding-left:20px; }
.prose li { margin-bottom:6px; }
.prose a  { color:var(--accent); }
.prose strong { color:var(--text); }

/* ── Responsive tweaks ── */
@media(max-width:768px){
  .tool-page-header { flex-direction:column; text-align:center; }
  .calc-card { padding: 24px 20px; }
  .result-grid { grid-template-columns: 1fr; }
}