*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --blue:#2563eb;--blue-dark:#1d4ed8;--blue-light:#eff6ff;
  --orange:#f97316;--orange-dark:#ea6c00;
  --green:#22c55e;--yellow:#f59e0b;--red:#ef4444;
  --slate-50:#f8fafc;--slate-100:#f1f5f9;--slate-200:#e2e8f0;
  --slate-400:#94a3b8;--slate-600:#475569;--slate-700:#334155;--slate-800:#1e293b;
  --radius:12px;
  --shadow:0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);
  --shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06);
}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--slate-50);color:var(--slate-800);line-height:1.6}

/* HEADER */
header{background:var(--blue);position:sticky;top:0;z-index:100;box-shadow:var(--shadow)}
.header-inner{max-width:1100px;margin:0 auto;padding:0 1rem;display:flex;align-items:center;justify-content:space-between;height:54px}
.logo{font-size:1.2rem;font-weight:800;color:#fff;text-decoration:none;display:flex;align-items:center;gap:.375rem}
nav{display:flex;gap:.15rem}
nav a{color:rgba(255,255,255,.85);text-decoration:none;font-size:.82rem;font-weight:500;padding:.3rem .65rem;border-radius:6px;transition:background .15s;white-space:nowrap}
nav a:hover{background:rgba(255,255,255,.2);color:#fff}

/* MAIN */
main{max-width:1100px;margin:0 auto;padding:1.5rem 1rem 3rem}

/* CARDS */
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--slate-200);padding:1.5rem}

/* BREADCRUMB */
.breadcrumb{display:flex;align-items:center;gap:.4rem;font-size:.78rem;color:var(--slate-400);margin-bottom:1.25rem}
.breadcrumb a{color:var(--blue);text-decoration:none}

/* PAGE HEADER */
.page-header{margin-bottom:1.5rem}
.page-header h1{font-size:1.75rem;font-weight:800;margin-bottom:.375rem;line-height:1.2}
.page-header p{color:var(--slate-600);font-size:.95rem}

/* HERO */
.hero{text-align:center;padding:2.5rem 1rem 1.5rem}
.hero h1{font-size:2.25rem;font-weight:800;margin-bottom:.75rem;line-height:1.2}
.hero p{font-size:1.05rem;color:var(--slate-600);max-width:580px;margin:0 auto}

/* TOOLS GRID */
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:1rem;margin-top:1rem}
.tool-card{background:#fff;border:1.5px solid var(--slate-200);border-radius:var(--radius);padding:1.25rem;text-decoration:none;color:inherit;transition:border-color .2s,box-shadow .2s,transform .2s;display:flex;flex-direction:column;gap:.4rem}
.tool-card:hover{border-color:var(--blue);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.tool-icon{font-size:1.875rem}
.tool-title{font-size:.95rem;font-weight:700}
.tool-desc{font-size:.82rem;color:var(--slate-600);flex:1}
.tool-badge{display:inline-block;font-size:.68rem;font-weight:700;padding:.125rem .5rem;border-radius:20px;background:var(--blue-light);color:var(--blue);align-self:flex-start;margin-top:.25rem}

/* CATEGORY */
.cat-title{font-size:1.1rem;font-weight:700;margin:2rem 0 .75rem;color:var(--slate-700);display:flex;align-items:center;gap:.75rem}
.cat-title::after{content:'';flex:1;height:1px;background:var(--slate-200)}

/* ADS */
.ad-wrap{max-width:1100px;margin:.5rem auto;padding:0 1rem}
.ad-slot{background:var(--slate-100);border:1px dashed var(--slate-200);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--slate-400);font-size:.72rem;min-height:90px;width:100%;letter-spacing:.05em;text-transform:uppercase}
.ad-slot-sq{min-height:250px;max-width:336px;margin:0 auto}
.ad-in-main{margin:1.5rem 0;padding:0}

/* FORMS */
.form-group{margin-bottom:1rem}
label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.375rem}
input,select,textarea{width:100%;padding:.6rem .85rem;border:1.5px solid var(--slate-200);border-radius:8px;font-size:.9rem;color:var(--slate-800);background:#fff;transition:border-color .15s,box-shadow .15s;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
input[type=range]{padding:0;height:4px;accent-color:var(--blue);cursor:pointer;border:none;box-shadow:none}
input[type=range]:focus{box-shadow:none}
input[type=color]{padding:.15rem .25rem;height:42px;cursor:pointer}
input[type=number]{-moz-appearance:textfield}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--blue)}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.6rem 1.2rem;border-radius:8px;font-size:.875rem;font-weight:600;cursor:pointer;border:none;transition:all .15s;text-decoration:none;font-family:inherit}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark)}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{background:var(--orange-dark)}
.btn-outline{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-ghost{background:var(--slate-100);color:var(--slate-700);border:1px solid var(--slate-200)}
.btn-ghost:hover{background:var(--slate-200)}
.btn-sm{padding:.35rem .75rem;font-size:.8rem}
.btn-lg{padding:.75rem 1.5rem;font-size:1rem}
.btn-block{width:100%;justify-content:center}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* RESULT */
.result{background:var(--blue-light);border:1.5px solid #bfdbfe;border-radius:8px;padding:1rem 1.25rem;margin-top:1rem}
.result-big{font-size:2rem;font-weight:800;color:var(--blue);line-height:1.2}
.result-label{font-size:.8rem;color:var(--slate-600);margin-top:.25rem}

/* STATS */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:.75rem;margin:1.25rem 0}
.stat-card{background:var(--blue-light);border-radius:8px;padding:.875rem;text-align:center}
.stat-value{font-size:1.6rem;font-weight:800;color:var(--blue)}
.stat-label{font-size:.75rem;color:var(--slate-600);margin-top:.2rem}

/* TABS */
.tabs{display:flex;gap:.25rem;border-bottom:2px solid var(--slate-200);margin-bottom:1.5rem;flex-wrap:wrap}
.tab{padding:.55rem 1.1rem;border:none;background:none;font-size:.875rem;font-weight:600;color:var(--slate-600);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s}
.tab.active{color:var(--blue);border-bottom-color:var(--blue)}
.tab-pane{display:none}
.tab-pane.active{display:block}

/* UPLOAD */
.upload-zone{border:2px dashed var(--slate-200);border-radius:var(--radius);padding:2.5rem 1.5rem;text-align:center;cursor:pointer;transition:border-color .2s,background .2s;background:#fff}
.upload-zone:hover,.upload-zone.drag-over{border-color:var(--blue);background:var(--blue-light)}
.upload-icon{font-size:2.5rem;margin-bottom:.75rem}
.upload-hint{font-size:.82rem;color:var(--slate-400);margin-top:.5rem}

/* GAUGE BAR */
.gauge-track{height:14px;background:var(--slate-200);border-radius:7px;overflow:hidden;margin:.75rem 0;position:relative}
.gauge-fill{height:100%;border-radius:7px;transition:width .5s ease,background .5s ease}

/* PASSWORD STRENGTH */
.strength-bars{display:flex;gap:.3rem;margin:.5rem 0}
.strength-bar{flex:1;height:5px;border-radius:3px;background:var(--slate-200);transition:background .3s}

/* COLOR */
.color-preview{width:100%;height:90px;border-radius:8px;border:1px solid var(--slate-200);transition:background .1s}
.copy-row{font-family:monospace;font-size:.85rem;background:var(--slate-100);border:1px solid var(--slate-200);border-radius:6px;padding:.4rem .75rem;display:flex;justify-content:space-between;align-items:center;margin:.5rem 0;gap:.5rem;word-break:break-all}

/* GRIDS */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem}
@media(max-width:600px){.grid-2,.grid-3{grid-template-columns:1fr}}

/* CHECK ROW */
.check-row{display:flex;align-items:center;gap:.5rem;margin:.375rem 0;cursor:pointer;font-size:.9rem;user-select:none}
.check-row input{width:auto;cursor:pointer}

/* FAQ */
.faq{margin-top:2rem}
.faq>h2{font-size:1.375rem;font-weight:800;margin-bottom:1.25rem}
.faq-item{border:1px solid var(--slate-200);border-radius:8px;margin-bottom:.5rem;overflow:hidden}
.faq-q{width:100%;text-align:left;padding:.875rem 1.25rem;background:#fff;border:none;font-size:.9rem;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:1rem;font-family:inherit}
.faq-q:hover{background:var(--slate-50)}
.faq-a{padding:0 1.25rem .875rem;font-size:.875rem;color:var(--slate-600);display:none;line-height:1.7}
.faq-a.open{display:block}

/* FOOTER */
footer{background:var(--slate-800);color:var(--slate-400);padding:2rem 1rem}
.footer-inner{max-width:1100px;margin:0 auto}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:1.5rem}
.footer-brand{font-size:1.05rem;font-weight:800;color:#fff}
.footer-links{display:flex;flex-wrap:wrap;gap:.375rem 1.25rem}
.footer-links a{color:var(--slate-400);text-decoration:none;font-size:.82rem}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid var(--slate-700);margin-top:1.5rem;padding-top:1.25rem;text-align:center;font-size:.78rem}

/* UTILS */
.mt-2{margin-top:.5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}
.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}
.gap-2{gap:.5rem}.gap-3{gap:.75rem}
.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.flex-wrap{flex-wrap:wrap}
.w-full{width:100%}
.font-mono{font-family:monospace}
.relative{position:relative}
.text-muted{color:var(--slate-600)}
.text-sm{font-size:.85rem}
.text-center{text-align:center}
.bold{font-weight:700}
.hidden{display:none!important}
.img-preview{max-width:100%;max-height:280px;border-radius:8px;border:1px solid var(--slate-200);object-fit:contain}
.img-wrap{background:var(--slate-100);border-radius:8px;padding:1rem;text-align:center;min-height:100px;display:flex;align-items:center;justify-content:center}
.tag{display:inline-block;padding:.15rem .6rem;border-radius:20px;font-size:.75rem;font-weight:600}
.tag-green{background:#dcfce7;color:#166534}
.tag-yellow{background:#fef9c3;color:#854d0e}
.tag-red{background:#fee2e2;color:#991b1b}
.tag-blue{background:var(--blue-light);color:var(--blue)}