:root{
  --bg:#f5f7fb;
  --panel:#ffffff;
  --panel-2:#f9fbff;
  --border:#dbe4f0;
  --text:#10233f;
  --muted:#5d6d85;
  --blue:#2563eb;
  --blue-dark:#1d4ed8;
  --green:#16a34a;
  --green-soft:#eaf9ee;
  --yellow:#f59e0b;
  --yellow-soft:#fff7e6;
  --red:#dc2626;
  --red-soft:#fff0f0;
  --shadow:0 16px 40px rgba(16,35,63,.08);
  --radius:20px;
  --radius-sm:14px;
  --max:1160px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Verdana, Arial, sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.55;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}

.container{
  width:min(calc(100% - 32px), var(--max));
  margin:0 auto;
}

.site-header{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(245,247,251,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(219,228,240,.8);
}

.header-inner{
  min-height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}

.brand{
  font-size:1.15rem;
  font-weight:700;
  letter-spacing:.2px;
}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 14px;
  border-radius:999px;
  background:#eef4ff;
  color:var(--blue);
  font-size:.94rem;
  font-weight:700;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:52px;
  padding:0 22px;
  border:0;
  border-radius:14px;
  cursor:pointer;
  transition:.18s ease;
  font-weight:700;
}

.btn:hover{transform:translateY(-1px)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

.btn-primary{
  background:linear-gradient(180deg, var(--blue), var(--blue-dark));
  color:#fff;
  box-shadow:0 10px 24px rgba(37,99,235,.22);
}

.btn-secondary{
  background:#fff;
  color:var(--text);
  border:1px solid var(--border);
}

.btn-full{width:100%}

.hero{
  padding:64px 0 46px;
}

.hero-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:28px;
  align-items:center;
}

.hero-copy h1{
  margin:0 0 14px;
  font-size:clamp(2rem, 5vw, 3.45rem);
  line-height:1.08;
  letter-spacing:-.02em;
}

.hero-copy p{
  margin:0 0 22px;
  color:var(--muted);
  font-size:1.08rem;
  max-width:58ch;
}

.hero-points{
  margin:0 0 26px;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}

.hero-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--text);
}

.hero-points li::before{
  content:"✓";
  color:var(--green);
  font-weight:700;
  margin-top:1px;
}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
}

.microcopy{
  margin-top:12px;
  color:var(--muted);
  font-size:.95rem;
}

.mark-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:24px;
  padding:24px;
  box-shadow:var(--shadow);
}

.mark-card-label{
  font-size:.98rem;
  color:var(--muted);
  margin-bottom:10px;
  font-weight:700;
}

.mark-range{
  display:flex;
  align-items:end;
  gap:10px;
  line-height:1;
  margin-bottom:12px;
}

.mark-range strong{
  font-size:clamp(3rem, 8vw, 4.8rem);
  letter-spacing:-.04em;
}

.mark-range span{
  font-size:1.1rem;
  color:var(--muted);
  padding-bottom:10px;
}

.mark-band{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  border-radius:999px;
  background:var(--green-soft);
  color:var(--green);
  font-weight:700;
}

.section{
  padding:26px 0;
}

.section-title{
  margin:0 0 8px;
  font-size:1.9rem;
  line-height:1.15;
}

.section-copy{
  margin:0 0 24px;
  color:var(--muted);
  max-width:70ch;
}

.steps{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:18px;
}

.step-card,
.panel,
.stat-card,
.form-card,
.output-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

.step-card{
  padding:22px;
}

.step-number{
  width:42px;
  height:42px;
  border-radius:999px;
  display:grid;
  place-items:center;
  background:#eef4ff;
  color:var(--blue);
  font-weight:700;
  margin-bottom:14px;
}

.step-card h3{
  margin:0 0 8px;
  font-size:1.12rem;
}

.step-card p{
  margin:0;
  color:var(--muted);
}

.privacy-strip{
  margin-top:20px;
  background:#edf8ff;
  border:1px solid #d8edfb;
  color:#174e78;
  padding:16px 18px;
  border-radius:16px;
  font-weight:700;
}

.example-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:22px;
}

.example-card{
  padding:22px;
}

.example-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-bottom:18px;
  border-bottom:1px solid var(--border);
  margin-bottom:18px;
}

.example-top h3{
  margin:0;
  font-size:1.2rem;
}

.example-columns{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:16px;
}

.mini-block{
  background:var(--panel-2);
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px;
}

.mini-block h4{
  margin:0 0 10px;
  font-size:1rem;
}

.list{
  margin:0;
  padding-left:18px;
}

.list li{margin:0 0 8px}

.side-cta{
  padding:22px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.side-cta h3{
  margin:0 0 10px;
  font-size:1.5rem;
  line-height:1.15;
}

.side-cta p{
  margin:0 0 18px;
  color:var(--muted);
}

.footer{
  padding:30px 0 50px;
  color:var(--muted);
  font-size:.95rem;
}

.page-hero{
  padding:44px 0 20px;
}

.page-hero h1{
  margin:0 0 10px;
  font-size:clamp(1.8rem, 4vw, 2.7rem);
  line-height:1.1;
}

.page-hero p{
  margin:0;
  color:var(--muted);
  max-width:72ch;
}

.form-layout,
.feedback-layout{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:22px;
  align-items:start;
}

.form-card,
.panel,
.output-card{
  padding:22px;
}

.form-group{
  margin-bottom:18px;
}

.label{
  display:block;
  font-weight:700;
  margin-bottom:8px;
}

.input,
.select,
.textarea{
  width:100%;
  border:1px solid var(--border);
  background:#fff;
  border-radius:14px;
  padding:14px 15px;
  color:var(--text);
  outline:none;
  transition:border-color .16s ease, box-shadow .16s ease;
}

.input:focus,
.select:focus,
.textarea:focus{
  border-color:var(--blue);
  box-shadow:0 0 0 4px rgba(37,99,235,.10);
}

.textarea{
  min-height:340px;
  resize:vertical;
}

.field-note{
  margin-top:7px;
  font-size:.92rem;
  color:var(--muted);
}

.wordcount{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-top:8px;
  color:var(--muted);
  font-size:.92rem;
}

.wordcount strong{color:var(--text)}

.status-good{color:var(--green)}
.status-warn{color:var(--yellow)}
.status-bad{color:var(--red)}

.help-box{
  background:#f9fbff;
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px;
  margin-bottom:16px;
}

.help-box h3{
  margin:0 0 8px;
  font-size:1.05rem;
}

.help-box p,
.help-box li{
  color:var(--muted);
}

.help-box ul{
  margin:0;
  padding-left:18px;
}

.analysis-box{
  display:none;
  margin-top:18px;
  padding:18px;
  border-radius:16px;
  background:#f7faff;
  border:1px solid var(--border);
}

.analysis-box.active{display:block}

.analysis-message{
  font-weight:700;
  margin-bottom:10px;
}

.progress{
  width:100%;
  height:12px;
  border-radius:999px;
  background:#e8eef8;
  overflow:hidden;
}

.progress > span{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg, var(--blue), #60a5fa);
  transition:width .35s ease;
}

.flash{
  display:none;
  padding:14px 16px;
  border-radius:14px;
  margin-bottom:16px;
  font-weight:700;
}

.flash.show{display:block}
.flash.error{background:#fff1f2;border:1px solid #fecdd3;color:#be123c}
.flash.success{background:#eefbf1;border:1px solid #b7e4c7;color:#166534}

.score-hero{
  display:grid;
  grid-template-columns:1fr auto;
  gap:18px;
  align-items:center;
  margin-bottom:20px;
}

.score-box{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:end;
}

.score-box strong{
  font-size:clamp(2.6rem, 7vw, 4rem);
  letter-spacing:-.04em;
  line-height:1;
}

.score-pill{
  display:inline-flex;
  align-items:center;
  padding:9px 14px;
  border-radius:999px;
  font-weight:700;
}

.score-pill.green{background:var(--green-soft);color:var(--green)}
.score-pill.yellow{background:var(--yellow-soft);color:#a16207}
.score-pill.red{background:var(--red-soft);color:var(--red)}

.metrics{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:14px;
  margin-bottom:20px;
}

.stat-card{
  padding:16px;
}

.stat-card h4{
  margin:0 0 8px;
  font-size:.95rem;
  color:var(--muted);
}

.stat-card div{
  font-size:1.35rem;
  font-weight:700;
}

.output-sections{
  display:grid;
  gap:16px;
}

.output-section{
  border:1px solid var(--border);
  background:var(--panel-2);
  border-radius:16px;
  padding:16px;
}

.output-section h3{
  margin:0 0 10px;
  font-size:1.04rem;
}

.output-section p{
  margin:0;
}

.chip-list{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}

.chip{
  display:inline-flex;
  align-items:center;
  padding:8px 11px;
  border-radius:999px;
  background:#eef4ff;
  color:#1e40af;
  font-weight:700;
  font-size:.92rem;
}

.sidebar-stack{
  display:grid;
  gap:16px;
}

.small{
  font-size:.92rem;
  color:var(--muted);
}

.inline-form{
  display:grid;
  gap:12px;
}

.radio-group{
  display:grid;
  gap:10px;
}

.radio-option{
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 14px;
  border-radius:14px;
  background:#fff;
  border:1px solid var(--border);
}

.empty-state{
  text-align:center;
  padding:48px 20px;
}

.empty-state h2{
  margin:0 0 10px;
  font-size:2rem;
}

.empty-state p{
  margin:0 auto 18px;
  color:var(--muted);
  max-width:55ch;
}

@media (max-width: 980px){
  .hero-grid,
  .example-grid,
  .form-layout,
  .feedback-layout{
    grid-template-columns:1fr;
  }

  .steps,
  .metrics,
  .example-columns{
    grid-template-columns:1fr;
  }

  .score-hero{
    grid-template-columns:1fr;
  }

  .header-inner{
    min-height:72px;
  }
}

@media (max-width: 640px){
  .hero{
    padding-top:34px;
  }

  .header-actions .badge{
    display:none;
  }

  .btn{
    width:100%;
  }

  .hero-actions{
    flex-direction:column;
    align-items:stretch;
  }

  .mark-range strong{
    font-size:3rem;
  }
}