/* ==========================================================================
   Freelance Rate Calculator — styles.css
   Palette: Deep Slate Navy #0F172A / Emerald #10B981 / Muted Grey #F8FAFC
   ========================================================================== */

:root{
  --navy:        #0F172A;
  --navy-soft:   #1E293B;
  --emerald:     #10B981;
  --emerald-dk:  #0B9A6E;
  --bg:          #F8FAFC;
  --card:        #FFFFFF;
  --line:        #E2E8F0;
  --text:        #0F172A;
  --text-muted:  #64748B;
  --danger:      #DC2626;
  --radius:      14px;
  --shadow:      0 4px 24px rgba(15,23,42,0.08);
  --maxw:        1160px;
  --font:        'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font);color:var(--text);background:var(--bg);
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-weight:800;letter-spacing:-0.02em;line-height:1.15;margin:0 0 .5em;}
p{margin:0 0 1em;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}

.visually-hidden{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--emerald);color:var(--navy);
  padding:10px 16px;z-index:999;border-radius:0 0 8px 0;font-weight:700;
}
.skip-link:focus{left:0;}
:focus-visible{outline:3px solid var(--emerald);outline-offset:2px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:200;background:var(--navy);color:#fff;
  box-shadow:0 2px 12px rgba(0,0,0,.15);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;background:none;border:none;padding:0;}
.brand-mark{
  font-weight:800;font-size:.85rem;background:var(--emerald);color:var(--navy);
  padding:6px 9px;border-radius:8px;letter-spacing:-0.02em;
}
.brand-name{font-weight:800;font-size:1.15rem;letter-spacing:-0.02em;}

.nav-toggle{
  display:none;flex-direction:column;gap:5px;background:none;border:none;padding:8px;
}
.nav-toggle span{width:22px;height:2px;background:#fff;border-radius:2px;}

.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  background:none;border:none;color:#CBD5E1;font-weight:600;font-size:.92rem;
  padding:9px 14px;border-radius:8px;transition:background .15s,color .15s;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{color:#fff;background:rgba(16,185,129,.16);}

.lang-switch{display:flex;margin-left:10px;border:1px solid rgba(255,255,255,.2);border-radius:999px;overflow:hidden;}
.lang-btn{
  background:none;border:none;color:#CBD5E1;font-weight:700;font-size:.78rem;
  padding:7px 13px;letter-spacing:.03em;
}
.lang-btn.is-active{background:var(--emerald);color:var(--navy);}

@media (max-width:880px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;background:var(--navy);
    flex-direction:column;align-items:stretch;gap:0;max-height:0;overflow:hidden;
    transition:max-height .3s ease;
  }
  .main-nav.open{max-height:80vh;overflow-y:auto;}
  .nav-link{width:100%;text-align:left;border-radius:0;padding:16px 24px;border-top:1px solid rgba(255,255,255,.08);}
  .lang-switch{margin:14px 24px;align-self:flex-start;}
}

/* ---------- Layout helpers ---------- */
.page{display:none;}
.page.is-active{display:block;}
.ad-slot{
  max-width:var(--maxw);margin:32px auto;padding:18px;text-align:center;
  border:2px dashed #CBD5E1;border-radius:12px;color:#94A3B8;font-size:.85rem;font-weight:600;
  background:repeating-linear-gradient(45deg,#fff,#fff 10px,#F1F5F9 10px,#F1F5F9 20px);
}

/* ---------- Hero ---------- */
.hero{background:var(--navy);color:#fff;padding:56px 24px 70px;}
.hero-inner{max-width:820px;margin:0 auto;text-align:center;}
.eyebrow{
  color:var(--emerald);font-weight:700;font-size:.8rem;letter-spacing:.08em;
  text-transform:uppercase;margin-bottom:14px;
}
.hero h1{font-size:clamp(1.8rem,4.2vw,2.7rem);margin-bottom:.5em;}
.hero-sub{color:#CBD5E1;font-size:1.05rem;max-width:640px;margin:0 auto;}

/* ---------- Calculator ---------- */
.calculator{max-width:var(--maxw);margin:0 auto;padding:0 24px 40px;}
.calc-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:26px;margin-top:-40px;}
@media (max-width:900px){.calc-grid{grid-template-columns:1fr;margin-top:0;}}

.card{
  background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:28px;border:1px solid var(--line);
}

.field{margin-bottom:22px;}
.field:last-child{margin-bottom:0;}
.field-label-row{display:flex;align-items:center;gap:6px;margin-bottom:8px;}
.field label{font-weight:600;font-size:.9rem;color:var(--navy);}
.tip-btn{
  width:18px;height:18px;border-radius:50%;border:1px solid #CBD5E1;background:#fff;
  color:var(--text-muted);font-size:.72rem;font-weight:700;line-height:1;display:flex;
  align-items:center;justify-content:center;padding:0;flex-shrink:0;
}
.tip-btn:hover{background:var(--emerald);color:#fff;border-color:var(--emerald);}

.field-control{
  display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;
  overflow:hidden;background:#fff;
}
.field-control input, .field-control select{
  border:none;padding:11px 12px;font-size:1rem;width:100%;color:var(--text);background:transparent;
}
.field-control input:focus, .field-control select:focus{outline:none;}
.currency-affix{
  padding:0 12px;color:var(--text-muted);font-weight:700;background:#F1F5F9;
  align-self:stretch;display:flex;align-items:center;
}

.currency-field select{
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%;background:#fff;
}
.currency-field label{display:block;margin-bottom:8px;}

.slider{
  width:100%;margin-top:10px;-webkit-appearance:none;appearance:none;height:6px;
  border-radius:999px;background:var(--line);outline:none;
}
.slider::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;
  background:var(--emerald);border:3px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,.3);cursor:pointer;
}
.slider::-moz-range-thumb{
  width:18px;height:18px;border-radius:50%;background:var(--emerald);border:3px solid #fff;
  box-shadow:0 1px 4px rgba(0,0,0,.3);cursor:pointer;
}

/* ---------- Results card ---------- */
.results-card{background:var(--navy);color:#fff;border:none;}
.result-primary{text-align:center;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:20px;}
.result-label{color:#94A3B8;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px;}
.result-value{font-size:2.6rem;font-weight:800;color:var(--emerald);letter-spacing:-0.02em;}
.result-unit{font-size:1.1rem;color:#94A3B8;font-weight:600;margin-left:4px;}

.result-secondary-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:24px;}
.result-box{background:rgba(255,255,255,.05);border-radius:10px;padding:14px;}
.result-value-sm{font-size:1.3rem;font-weight:700;color:#fff;}

.breakdown{margin-bottom:24px;}
.breakdown-title{font-weight:700;font-size:.85rem;color:#CBD5E1;margin-bottom:10px;}
.breakdown-bar{display:flex;height:14px;border-radius:999px;overflow:hidden;background:rgba(255,255,255,.1);}
.bar-segment{height:100%;transition:width .3s ease;}
.bar-expenses{background:#F59E0B;}
.bar-tax{background:#94A3B8;}
.bar-profit{background:var(--emerald);}
.breakdown-legend{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px;font-size:.82rem;color:#CBD5E1;}
.legend-item{display:flex;align-items:center;gap:6px;}
.legend-item b{color:#fff;}
.dot{width:9px;height:9px;border-radius:50%;display:inline-block;}
.dot-expenses{background:#F59E0B;}
.dot-tax{background:#94A3B8;}
.dot-profit{background:var(--emerald);}

.btn-primary{
  width:100%;background:var(--emerald);color:var(--navy);border:none;border-radius:10px;
  padding:14px 20px;font-weight:700;font-size:.98rem;transition:background .15s,transform .1s;
}
.btn-primary:hover{background:var(--emerald-dk);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary.btn-sm{width:auto;padding:9px 18px;font-size:.85rem;}
.export-hint{font-size:.76rem;color:#94A3B8;text-align:center;margin-top:10px;margin-bottom:0;}

.btn-ghost{
  background:none;border:1px solid var(--line);color:var(--navy);border-radius:10px;
  padding:9px 16px;font-weight:600;font-size:.85rem;
}
.link-btn{background:none;border:none;color:var(--emerald-dk);font-weight:700;padding:0;font-size:.95rem;}
.link-btn:hover{text-decoration:underline;}

/* ---------- Home article (SEO excerpt) ---------- */
.home-article{max-width:820px;margin:0 auto;padding:20px 24px 60px;}
.home-article h2{font-size:1.5rem;}
.home-article p{color:#334155;}

/* ---------- Article pages ---------- */
.article-page{max-width:820px;margin:0 auto;padding:56px 24px 60px;}
.article-page--narrow{max-width:720px;}
.article-page h1{font-size:clamp(1.6rem,3.4vw,2.2rem);}
.article-body h2{font-size:1.3rem;margin-top:1.4em;}
.article-body h3{font-size:1.05rem;margin-top:1.2em;}
.article-body p{color:#334155;}
.article-body ul{color:#334155;padding-left:1.3em;}
.article-body li{margin-bottom:.5em;}

/* ---------- Contact form ---------- */
.contact-form{margin-top:24px;display:flex;flex-direction:column;gap:16px;max-width:480px;}
.form-field label{display:block;font-weight:600;font-size:.88rem;margin-bottom:6px;}
.form-field input, .form-field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 12px;
  font-size:.95rem;background:#fff;
}
.form-field input:focus, .form-field textarea:focus{outline:2px solid var(--emerald);outline-offset:1px;}
.form-field--honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;}
.contact-form .btn-primary{width:auto;padding:12px 28px;}
.form-msg{font-weight:600;font-size:.9rem;margin-top:4px;}
.form-msg.success{color:var(--emerald-dk);}
.form-msg.error{color:var(--danger);}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy);color:#CBD5E1;padding:44px 24px 24px;margin-top:20px;}
.footer-inner{
  max-width:var(--maxw);margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;
  gap:24px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{display:flex;flex-direction:column;gap:8px;max-width:320px;}
.footer-brand .brand-mark{align-self:flex-start;}
.footer-brand p{color:#94A3B8;font-size:.85rem;margin:0;}
.footer-links{display:flex;flex-wrap:wrap;gap:10px 20px;align-content:flex-start;}
.footer-links button{background:none;border:none;color:#CBD5E1;font-size:.88rem;font-weight:500;padding:4px 0;}
.footer-links button:hover{color:#fff;text-decoration:underline;}
.footer-copy{max-width:var(--maxw);margin:18px auto 0;font-size:.78rem;color:#64748B;text-align:center;}

/* ---------- Cookie banner ---------- */
.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;max-width:640px;margin:0 auto;
  background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 40px rgba(0,0,0,.2);
  padding:20px 22px;z-index:500;display:none;
}
.cookie-banner.is-visible{display:block;}
.cookie-banner p{font-size:.88rem;color:#334155;margin-bottom:14px;}
.cookie-actions{display:flex;gap:10px;flex-wrap:wrap;}
.cookie-policy-link{
  background:none;border:none;color:var(--text-muted);font-size:.78rem;text-decoration:underline;
  padding:10px 0 0;display:block;
}

/* ---------- Tooltip popover ---------- */
.tooltip-popover{
  position:fixed;max-width:260px;background:var(--navy);color:#fff;font-size:.8rem;
  padding:10px 12px;border-radius:8px;box-shadow:var(--shadow);z-index:600;display:none;line-height:1.5;
}
.tooltip-popover.is-visible{display:block;}

/* ---------- Print styles ---------- */
.print-only{display:none;}
@media print{
  body *{visibility:hidden;}
  #printSummary, #printSummary *{visibility:visible;}
  #printSummary{
    display:block;position:absolute;left:0;top:0;width:100%;padding:24px;
    font-family:var(--font);color:#000;
  }
  #printSummary h1{font-size:1.5rem;margin-bottom:4px;}
  #printSummary table{width:100%;border-collapse:collapse;margin:14px 0;}
  #printSummary td{padding:6px 4px;border-bottom:1px solid #ddd;font-size:.92rem;}
  #printSummary .print-results td:last-child{font-weight:700;}
  #printSummary .print-disclaimer{font-size:.78rem;color:#555;margin-top:20px;}
}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;}
  html{scroll-behavior:auto;}
}