@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=DM+Mono:wght@400;500&family=Fraunces:wght@700;900&display=swap');
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#2563eb;--primary-dark:#1d4ed8;--primary-light:#3b82f6;--primary-bg:#eff6ff;
  --accent:#f59e0b;--accent2:#10b981;--accent3:#8b5cf6;
  --bg:#ffffff;--bg2:#f8fafc;--bg3:#f1f5f9;--bg4:#e2e8f0;
  --border:#e2e8f0;--border2:#cbd5e1;--border3:#94a3b8;
  --text1:#0f172a;--text2:#334155;--text3:#64748b;--text4:#94a3b8;
  --green:#16a34a;--green-bg:#f0fdf4;--red:#dc2626;--red-bg:#fef2f2;
  --yellow:#d97706;--yellow-bg:#fffbeb;--purple:#7c3aed;--purple-bg:#f5f3ff;
  --shadow-sm:0 1px 3px rgba(15,23,42,.08),0 1px 2px rgba(15,23,42,.04);
  --shadow:0 4px 6px -1px rgba(15,23,42,.08),0 2px 4px -1px rgba(15,23,42,.04);
  --shadow-md:0 10px 15px -3px rgba(15,23,42,.08),0 4px 6px -2px rgba(15,23,42,.03);
  --shadow-lg:0 20px 25px -5px rgba(15,23,42,.1),0 10px 10px -5px rgba(15,23,42,.04);
  --radius-sm:6px;--radius:10px;--radius-md:14px;--radius-lg:20px;--radius-xl:28px;
}
html{scroll-behavior:smooth}
body{font-family:'DM Sans',sans-serif;background:var(--bg);color:var(--text1);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg2)}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}

/* ── NAV ── */
.site-nav{background:rgba(255,255,255,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:0 20px;display:flex;align-items:center;height:60px;position:sticky;top:0;z-index:999;gap:12px}
.nav-logo{font-family:'Fraunces',serif;font-size:21px;font-weight:900;color:var(--text1);white-space:nowrap;letter-spacing:-0.5px;flex-shrink:0}
.nav-logo span{color:var(--primary)}
.nav-links{display:flex;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{padding:6px 12px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;color:var(--text3);white-space:nowrap;transition:all .15s}
.nav-links a:hover{background:var(--bg2);color:var(--text1)}
.nav-links a.active{background:var(--primary-bg);color:var(--primary);font-weight:600}
/* Hamburger */
.nav-toggle{display:none;background:none;border:1.5px solid var(--border2);border-radius:var(--radius-sm);padding:7px 10px;cursor:pointer;flex-shrink:0;color:var(--text2);font-size:18px;line-height:1}
.nav-mobile{display:none;position:fixed;top:60px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:12px 16px;z-index:998;box-shadow:var(--shadow-md)}
.nav-mobile a{display:block;padding:10px 14px;border-radius:var(--radius);font-size:15px;font-weight:500;color:var(--text2);border-bottom:1px solid var(--border)}
.nav-mobile a:last-child{border-bottom:none}
.nav-mobile a:hover,.nav-mobile a.active{background:var(--primary-bg);color:var(--primary)}
.nav-mobile.open{display:block}

/* ── TOOL HEADER ── */
.tool-header{text-align:center;padding:36px 20px 28px;background:linear-gradient(180deg,var(--primary-bg) 0%,var(--bg) 100%);border-bottom:1px solid var(--border);margin-bottom:28px}
.tool-icon{width:60px;height:60px;border-radius:16px;background:var(--primary);display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 14px;box-shadow:0 8px 16px rgba(37,99,235,.2)}
.tool-header h1{font-size:clamp(20px,4vw,30px);font-weight:700;color:var(--text1);margin-bottom:6px;letter-spacing:-0.5px}
.tool-header p{color:var(--text3);font-size:14px;max-width:480px;margin:0 auto}

/* ── LAYOUT ── */
.tool-wrap{max-width:900px;margin:0 auto;padding:0 16px 60px}
.tool-body{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:24px;margin-bottom:16px;box-shadow:var(--shadow-sm)}
.tool-info{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;margin-bottom:16px}
.tool-info h2{font-size:15px;font-weight:600;margin-bottom:10px;color:var(--text1)}
.tool-info p{font-size:13px;color:var(--text3);margin-bottom:6px;line-height:1.7}
.tool-info a{color:var(--primary);text-decoration:underline;text-underline-offset:2px}

/* ── FIELD ── */
.field-group{margin-bottom:14px}
.field-group label{display:block;font-size:13px;font-weight:600;color:var(--text2);margin-bottom:5px}

/* ── INPUTS ── */
textarea,input[type=text],input[type=number],input[type=url],input[type=email],input[type=date],input[type=time],select{width:100%;padding:10px 13px;background:var(--bg);border:1.5px solid var(--border2);border-radius:var(--radius);color:var(--text1);font-family:'DM Sans',sans-serif;font-size:14px;outline:none;transition:all .15s;box-shadow:var(--shadow-sm)}
textarea:focus,input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
textarea{resize:vertical;line-height:1.7;min-height:110px}
select{cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:34px;appearance:none;-webkit-appearance:none}
input[type=color]{width:48px;height:42px;padding:4px;border-radius:var(--radius);cursor:pointer}
input[type=range]{accent-color:var(--primary);cursor:pointer;width:100%}

/* ── BUTTONS ── */
.btn{padding:9px 18px;border-radius:var(--radius);border:1.5px solid var(--border2);cursor:pointer;font-size:14px;font-weight:600;font-family:'DM Sans',sans-serif;transition:all .15s;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;background:var(--bg2);color:var(--text2)}
.btn:hover{background:var(--bg3);color:var(--text1);border-color:var(--border3)}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 2px 4px rgba(37,99,235,.2)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);box-shadow:0 4px 8px rgba(37,99,235,.3);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-success{background:var(--green-bg);color:var(--green);border-color:#bbf7d0}
.btn-danger{background:var(--red-bg);color:var(--red);border-color:#fecaca}
.toggle-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.btn-copy{background:var(--primary-bg);color:var(--primary);border:1.5px solid rgba(37,99,235,.2);padding:4px 11px;border-radius:var(--radius-sm);font-size:12px;font-weight:600;cursor:pointer;font-family:'DM Sans',sans-serif;transition:all .15s}
.btn-copy:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ── OUTPUT ── */
.output-box{background:var(--bg2);border:1.5px solid var(--border);border-radius:var(--radius);padding:14px;font-size:13px;line-height:1.8;min-height:80px;white-space:pre-wrap;word-break:break-all;font-family:'DM Mono',monospace;color:var(--text2)}

/* ── STATS ── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;margin-top:14px}
.stat-box{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:14px;text-align:center;box-shadow:var(--shadow-sm);transition:all .2s}
.stat-box:hover{box-shadow:var(--shadow);border-color:var(--primary);transform:translateY(-2px)}
.stat-box .val{font-size:24px;font-weight:700;color:var(--primary);font-family:'Fraunces',serif}
.stat-box .lbl{font-size:11px;color:var(--text4);margin-top:3px;font-weight:500;text-transform:uppercase;letter-spacing:0.4px}

/* ── AD SLOT ── */
.ad-slot{background:linear-gradient(135deg,#f8fafc,#f1f5f9);border:1.5px dashed var(--border2);border-radius:var(--radius-md);padding:20px;text-align:center;color:var(--text4);font-size:12px;margin:16px 0;font-weight:500}

/* ── TABLE ── */
.data-table{width:100%;border-collapse:collapse;font-size:14px}
.data-table th{background:var(--bg2);padding:9px 12px;text-align:left;font-weight:600;font-size:12px;color:var(--text3);text-transform:uppercase;letter-spacing:0.4px;border-bottom:2px solid var(--border2)}
.data-table td{padding:9px 12px;border-bottom:1px solid var(--border);color:var(--text2)}
.data-table tr:hover td{background:var(--bg2)}
.data-table tr:last-child td{border-bottom:none}

/* ── BADGES ── */
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:700;letter-spacing:0.3px}
.badge-new{background:#dbeafe;color:#1d4ed8}
.badge-hot{background:#fee2e2;color:#dc2626}
.badge-free{background:#dcfce7;color:#16a34a}

/* ── TOAST ── */
.toast{position:fixed;bottom:20px;right:20px;background:var(--text1);color:#fff;padding:11px 18px;border-radius:var(--radius);font-size:14px;font-weight:500;z-index:9999;box-shadow:var(--shadow-lg);animation:slideUp .2s ease}
@keyframes slideUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* ── ALERTS ── */
.alert{padding:12px 15px;border-radius:var(--radius);font-size:14px;margin-bottom:14px;display:flex;gap:10px;align-items:flex-start;line-height:1.5}
.alert-info{background:var(--primary-bg);border:1px solid #bfdbfe;color:#1e40af}
.alert-success{background:var(--green-bg);border:1px solid #bbf7d0;color:#166534}
.alert-warn{background:var(--yellow-bg);border:1px solid #fde68a;color:#92400e}
.alert-error{background:var(--red-bg);border:1px solid #fecaca;color:#991b1b}

/* ── FOOTER ── */
footer{background:var(--bg2);border-top:1px solid var(--border);padding:40px 20px 28px;margin-top:48px}

/* ── MOBILE FIRST RESPONSIVE ── */
@media(max-width:768px){
  /* Nav: show hamburger, hide links */
  .nav-links{display:none}
  .nav-toggle{display:flex;align-items:center}

  /* Hero */
  .tool-header{padding:24px 16px 20px}
  .tool-icon{width:52px;height:52px;font-size:22px;border-radius:14px}

  /* Tool layout */
  .tool-wrap{padding:0 12px 40px}
  .tool-body{padding:16px}

  /* Stats: 2 columns on mobile */
  .stats-grid{grid-template-columns:repeat(2,1fr)}

  /* Any 2-col grid → stack */
  .tool-body [style*="grid-template-columns:1fr 1fr"],
  .tool-body [style*="grid-template-columns: 1fr 1fr"]{
    display:flex !important;flex-direction:column !important
  }

  /* Table: horizontal scroll */
  .data-table{font-size:12px}
  .data-table th,.data-table td{padding:7px 9px}

  /* Buttons: full width on small screens */
  .toggle-row{gap:6px}
  .toggle-row .btn{flex:1;justify-content:center;font-size:13px;padding:8px 10px}

  footer{padding:28px 16px 20px}
}

@media(max-width:480px){
  .tool-header h1{font-size:20px}
  .tool-body{padding:14px}
  .stat-box .val{font-size:20px}
  .btn-primary{font-size:14px;padding:11px 16px}
  /* 2-col stats → still 2 col but smaller */
  .stats-grid{gap:8px}
  .stat-box{padding:11px 8px}
}

/* ── BACKWARD COMPAT: old dark-theme class names → light styles ── */
.page-hero{text-align:center;padding:36px 20px 28px;background:linear-gradient(180deg,var(--primary-bg) 0%,var(--bg) 100%);border-bottom:1px solid var(--border);margin-bottom:28px}
.page-hero h1{font-size:clamp(20px,4vw,30px);font-weight:700;color:var(--text1);margin-bottom:6px;letter-spacing:-0.5px;font-family:'Fraunces',serif}
.page-hero h1 span{color:var(--primary)}
.page-hero p{color:var(--text3);font-size:14px;max-width:480px;margin:0 auto}
.tool-card{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:24px;margin-bottom:16px;box-shadow:var(--shadow-sm)}
.tool-card h2{font-size:16px;font-weight:700;margin-bottom:14px;color:var(--text1)}
/* old button classes */
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 2px 4px rgba(37,99,235,.2)}
.btn-secondary{background:var(--bg2);color:var(--text2);border:1.5px solid var(--border2)}
.btn-secondary:hover{background:var(--bg3);color:var(--text1)}
/* old output box */
.output-label{font-size:12px;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
/* old toggle */
.toggle-wrap{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:14px;color:var(--text2)}
.toggle{width:40px;height:22px;background:var(--bg3);border-radius:11px;position:relative;transition:.2s;border:1.5px solid var(--border2);cursor:pointer;flex-shrink:0}
.toggle.on{background:var(--primary);border-color:var(--primary)}
.toggle::after{content:'';position:absolute;width:16px;height:16px;background:#fff;border-radius:50%;top:2px;left:2px;transition:.2s;box-shadow:var(--shadow-sm)}
.toggle.on::after{left:20px}
/* old info box */
.info-box{background:var(--primary-bg);border:1px solid #bfdbfe;border-radius:var(--radius);padding:14px 16px;font-size:13px;color:var(--text2);margin-top:12px}
/* old result colors */
.result-good{color:var(--green)}
.result-warn{color:var(--yellow)}
.result-bad{color:var(--red)}
/* old copy button  */
.copy-ok{color:var(--green) !important}
/* old btn-row */
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}