/* 99 Free Tools — shared design system v1 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#F6F8FC; --card:#FFFFFF; --ink:#0F172A; --muted:#64748B; --line:#E6EAF2;
  --brand1:#6366F1; --brand2:#8B5CF6;
  --brand-grad:linear-gradient(135deg,#6366F1 0%,#8B5CF6 100%);
  --radius:16px; --radius-s:10px;
  --shadow:0 1px 2px rgba(15,23,42,.05),0 8px 24px -12px rgba(15,23,42,.12);
  --shadow-lg:0 2px 4px rgba(15,23,42,.06),0 16px 40px -16px rgba(99,102,241,.25);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em;white-space:nowrap}
.brand-badge{width:36px;height:36px;border-radius:11px;background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;box-shadow:var(--shadow)}
.main-nav{display:flex;gap:4px;margin-left:8px}
.main-nav a{padding:8px 12px;border-radius:9px;font-size:14px;font-weight:600;color:var(--muted);white-space:nowrap}
.main-nav a:hover{background:#EEF1F7;color:var(--ink)}
.nav-search{margin-left:auto;position:relative}
.nav-search input{width:220px;padding:9px 14px 9px 38px;border:1.5px solid var(--line);border-radius:999px;font-size:14px;background:#F1F4F9;outline:none;transition:.15s}
.nav-search input:focus{border-color:var(--brand1);background:#fff;box-shadow:0 0 0 3px rgba(99,102,241,.15);width:260px}
.nav-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--muted)}

/* ---------- hero ---------- */
.hero{background:radial-gradient(900px 380px at 50% -80px,rgba(99,102,241,.16),transparent),var(--bg);padding:56px 0 40px;text-align:center}
.hero h1{font-size:clamp(30px,5vw,48px);font-weight:800;letter-spacing:-.03em;margin-bottom:12px}
.hero h1 .grad{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);font-size:17px;max-width:600px;margin:0 auto 26px}
.search-wrap{max-width:620px;margin:0 auto;position:relative}
.search-wrap input{width:100%;padding:17px 22px 17px 54px;font-size:17px;border:2px solid var(--line);border-radius:18px;background:#fff;outline:none;box-shadow:var(--shadow);transition:.15s}
.search-wrap input:focus{border-color:var(--brand1);box-shadow:var(--shadow-lg)}
.search-wrap svg{position:absolute;left:20px;top:50%;transform:translateY(-50%);width:20px;height:20px;stroke:var(--muted)}
.quick-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px}
.quick-chips button{border:1px solid var(--line);background:#fff;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;color:var(--muted);cursor:pointer;transition:.15s}
.quick-chips button:hover{border-color:var(--brand1);color:var(--brand1)}

/* ---------- sections & tool cards ---------- */
.section{padding:26px 0}
.section-head{display:flex;align-items:baseline;gap:12px;margin-bottom:16px}
.section-head h2{font-size:22px;font-weight:800;letter-spacing:-.02em}
.section-head .count{font-size:13px;color:var(--muted);font-weight:600}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.tool-card{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s,border-color .15s}
.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#C9CFFC}
.tile{flex:0 0 46px;width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;background:linear-gradient(135deg,hsl(var(--h,230) 85% 60%),hsl(var(--h,230) 85% 70%))}
.tool-name{display:block;font-weight:700;font-size:15px;letter-spacing:-.01em}
.tool-blurb{display:block;font-size:13px;color:var(--muted);margin-top:3px;line-height:1.45}
.popular-band{background:linear-gradient(135deg,#1E1B4B,#4C1D95);border-radius:20px;padding:26px;margin:8px 0 8px}
.popular-band .section-head h2{color:#fff}
.popular-band .section-head .count{color:#C4B5FD}
.popular-band .tool-card{background:rgba(255,255,255,.97)}
.empty-state{display:none;text-align:center;padding:48px 20px;color:var(--muted)}
.empty-state.show{display:block}

/* ---------- tool page ---------- */
.breadcrumb{font-size:13px;color:var(--muted);padding:18px 0 0}
.breadcrumb a{color:var(--brand1);font-weight:600}
.tool-hero{padding:14px 0 20px}
.tool-hero h1{font-size:clamp(26px,4vw,36px);font-weight:800;letter-spacing:-.02em}
.tool-hero .sub{color:var(--muted);font-size:16px;margin-top:6px;max-width:640px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:26px;margin-bottom:20px}
.controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:700;margin-bottom:7px;color:#334155}
.field input[type=text],.field input[type=number],.field input[type=url],.field input[type=date],.field input[type=time],.field select,.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit;background:#FBFCFE;outline:none;transition:.15s;color:var(--ink)}
.field textarea{min-height:120px;resize:vertical;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand1);box-shadow:0 0 0 3px rgba(99,102,241,.14);background:#fff}
.field input[type=file]{width:100%;padding:12px;border:2px dashed #CBD5E1;border-radius:12px;background:#FBFCFE;font-size:14px;cursor:pointer}
.field input[type=file]:hover{border-color:var(--brand1)}
.field input[type=range]{width:100%;accent-color:var(--brand1)}
.field input[type=color]{width:64px;height:44px;border:1.5px solid var(--line);border-radius:10px;padding:4px;background:#fff;cursor:pointer}
.check-row{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600}
.check-row input{width:18px;height:18px;accent-color:var(--brand1)}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 4px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:13px;font-size:15px;font-weight:700;border:1.5px solid transparent;cursor:pointer;transition:.15s;font-family:inherit}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 6px 18px -6px rgba(99,102,241,.5)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px -6px rgba(99,102,241,.55)}
.btn-primary:disabled{opacity:.55;cursor:not-allowed;transform:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand1);color:var(--brand1)}
.result{margin-top:18px}
.result-label{font-size:13px;font-weight:700;color:#334155;margin-bottom:8px;text-transform:uppercase;letter-spacing:.06em}
.result-box{background:#F8FAFC;border:1.5px solid var(--line);border-radius:12px;padding:18px;min-height:70px;word-break:break-word}
.result-box.output{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;white-space:pre-wrap}
.big-output{font-size:clamp(28px,5vw,44px);font-weight:800;letter-spacing:-.02em}
.note{background:#EFF6FF;border:1px solid #BFDBFE;color:#1E40AF;border-radius:12px;padding:13px 16px;font-size:14px;margin-top:14px}
.note.warn{background:#FFFBEB;border-color:#FDE68A;color:#92400E}
.note.ok{background:#ECFDF5;border-color:#A7F3D0;color:#065F46}
.note.err{background:#FEF2F2;border-color:#FECACA;color:#991B1B}
.howto{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:26px;margin-bottom:20px}
.howto h2{font-size:18px;margin-bottom:12px}
.howto ol{margin-left:20px;display:grid;gap:8px;color:#334155;font-size:15px}
.preview-img{max-width:100%;border-radius:12px;border:1px solid var(--line);display:block;margin:0 auto}
.canvas-wrap{display:flex;justify-content:center;background:#F1F5F9;border-radius:12px;padding:14px;overflow:auto}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-top:14px}
.stat{background:#F8FAFC;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}
.stat .v{font-size:22px;font-weight:800}
.stat .k{font-size:12px;color:var(--muted);font-weight:600}
.progress{height:8px;background:#E8EDF5;border-radius:99px;overflow:hidden;margin-top:10px}
.progress i{display:block;height:100%;width:0;background:var(--brand-grad);border-radius:99px;transition:width .2s}
.drop-hint{font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);margin-top:44px;padding:34px 0;background:#fff}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px}
.footer-grid h4{font-size:14px;margin-bottom:10px}
.footer-grid a{display:block;font-size:14px;color:var(--muted);padding:4px 0}
.footer-grid a:hover{color:var(--brand1)}
.footer-bottom{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* ---------- responsive ---------- */
@media(max-width:860px){
  .main-nav{display:none}
  .nav-search{margin-left:auto}
  .nav-search input{width:150px}
  .nav-search input:focus{width:170px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .panel,.howto{padding:18px}
  .tools-grid{grid-template-columns:1fr 1fr;gap:10px}
  .tool-card{padding:12px;gap:10px}
  .tile{flex-basis:40px;width:40px;height:40px;font-size:14px}
  .tool-blurb{display:none}
  .nav-search{display:none}
  .btn{width:100%}
  .btn-row .btn{width:100%}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
:focus-visible{outline:3px solid rgba(99,102,241,.4);outline-offset:2px}

/* legal links (footer) + article prose */
.legal-links{display:flex;gap:16px;flex-wrap:wrap}
.legal-links a{color:var(--muted);text-decoration:none}
.legal-links a:hover{color:var(--ink);text-decoration:underline}
.prose p{margin:0 0 14px;color:#334155;font-size:15px;line-height:1.7}
.prose h3{font-size:16px;margin:22px 0 8px;color:var(--ink)}
.prose ul{margin:0 0 14px 20px;display:grid;gap:6px;color:#334155;font-size:15px}
.prose a{color:var(--brand1)}

/* ---------- blog ---------- */
.post-date{font-size:13px;color:var(--muted);margin-top:8px}
.post-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.post-card .post-date{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin:0}
.post-card h3{font-size:17px;margin:8px 0 6px;letter-spacing:-.01em;color:var(--ink)}
.post-card p{font-size:14px;color:var(--muted);line-height:1.6;margin:0}
.post-card .read-more{display:inline-block;margin-top:10px;font-size:14px;font-weight:700;color:var(--brand1)}
/* ---------- features ---------- */
.feature-list{list-style:none;margin:0 0 8px;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px}
.feature-list li{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-s);padding:14px 16px;font-size:14px;color:var(--muted);line-height:1.55;box-shadow:var(--shadow)}
.feature-list li strong{display:block;color:var(--ink);font-size:15px;margin-bottom:2px}
@media(max-width:640px){.feature-list{grid-template-columns:1fr}}
.feature-list.points-only li{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600;color:var(--ink);padding:16px 18px}
.feature-list.points-only li::before{content:"✓";flex:none;width:28px;height:28px;border-radius:50%;background:var(--brand-grad);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}

/* ---------- brand ---------- */
.brand-two .t1{color:var(--brand1)}
.brand-two .t2{color:var(--brand2)}