/* ============================================================
   TARYFA DYNAMICZNA — design system
   Paleta wywiedziona z samego tematu: cena prądu w ciągu doby
   oscyluje między godzinami TANIMI (teal) a DROGIMI (amber).
   Ten kontrast jest osią wizualną całej strony.
   ============================================================ */

:root{
  --ink:        #0E2430;   /* głęboki petrol — tekst, tła sekcji */
  --ink-soft:   #24404C;
  --paper:      #F1F3F1;   /* chłodny jasny szary — tło strony */
  --paper-dim:  #E4E8E6;
  --line:       #C7D0CD;
  --cheap:      #00B8A9;   /* godziny tanie */
  --cheap-dark: #048C80;
  --expensive:  #FF7A45;   /* godziny drogie */
  --expensive-dark:#D85C29;
  --white:      #FFFFFF;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --radius: 14px;
  --container: 1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img,svg{max-width:100%;display:block;}

a{color:inherit;}

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

h1,h2,h3{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
h1{font-size:clamp(2.2rem,5vw,3.6rem);}
h2{font-size:clamp(1.6rem,3.2vw,2.3rem);}
h3{font-size:1.25rem;}
p{margin:0 0 1em;}

.mono{font-family:var(--font-mono);}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cheap-dark);
  display:flex;
  align-items:center;
  gap:.6em;
  margin-bottom:.9em;
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;border-radius:50%;
  background:var(--cheap);
  box-shadow:0 0 0 4px rgba(0,184,169,.18);
}

/* ---------- nav ---------- */
.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(241,243,241,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:64px;
}
.nav-logo{
  font-family:var(--font-display); font-weight:700; font-size:1.1rem;
  display:flex; align-items:center; gap:.5em;
}
.nav-logo .dot-cheap{color:var(--cheap-dark);}
.nav-links{display:flex; gap:28px; font-size:.92rem; font-weight:500;}
.nav-links a{text-decoration:none; opacity:.78; transition:opacity .15s;}
.nav-links a:hover{opacity:1;}
.nav-cta{
  background:var(--ink); color:var(--white);
  padding:10px 18px; border-radius:999px;
  font-size:.88rem; font-weight:600; text-decoration:none;
  white-space:nowrap;
}

/* ---------- hero ---------- */
.hero{
  padding:64px 0 40px;
  display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center;
}
@media (max-width:860px){ .hero{grid-template-columns:1fr;} }

.hero-sub{font-size:1.12rem; color:var(--ink-soft); max-width:46ch;}

.hero-ctas{display:flex; gap:14px; margin-top:28px; flex-wrap:wrap;}
.btn{
  display:inline-flex; align-items:center; gap:.5em;
  padding:14px 24px; border-radius:999px;
  font-weight:600; font-size:.96rem; text-decoration:none;
  border:1px solid transparent; cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--ink); color:var(--white);}
.btn-primary:hover{box-shadow:0 8px 20px rgba(14,36,48,.25);}
.btn-ghost{background:transparent; border-color:var(--ink); color:var(--ink);}

/* price-curve signature graphic */
.curve-card{
  background:var(--ink); border-radius:20px; padding:26px 22px 18px;
  color:var(--white);
}
.curve-card .curve-label{
  display:flex; justify-content:space-between; font-family:var(--font-mono);
  font-size:.72rem; letter-spacing:.06em; color:#9FD8D2; margin-bottom:10px;
}
.curve-legend{display:flex; gap:18px; margin-top:12px; font-size:.78rem; font-family:var(--font-mono);}
.curve-legend span{display:flex; align-items:center; gap:6px;}
.swatch{width:10px;height:10px;border-radius:2px;}

/* ---------- generic section ---------- */
section{padding:60px 0;}
.section-head{max-width:640px; margin-bottom:36px;}

/* ---------- how it works ---------- */
.steps{display:grid; grid-template-columns:repeat(3,1fr); gap:22px;}
@media (max-width:860px){.steps{grid-template-columns:1fr;}}
.step{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:24px;
}
.step .num{
  font-family:var(--font-mono); font-size:.8rem; color:var(--cheap-dark); font-weight:700;
  margin-bottom:10px; display:block;
}

/* ---------- calculator ---------- */
.calc{
  background:var(--white); border:1px solid var(--line); border-radius:20px;
  padding:32px; display:grid; grid-template-columns:1fr 1fr; gap:36px;
}
@media (max-width:860px){.calc{grid-template-columns:1fr;}}
.field{margin-bottom:22px;}
.field label{
  display:flex; justify-content:space-between; font-size:.88rem; font-weight:600; margin-bottom:8px;
}
.field .val{font-family:var(--font-mono); color:var(--cheap-dark);}
input[type=range]{
  width:100%; accent-color: var(--cheap-dark); height:6px;
}
input[type=number], select{
  width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:10px;
  font-family:var(--font-body); font-size:.95rem; background:var(--paper);
}
.calc-result{
  background:var(--ink); color:var(--white); border-radius:14px; padding:24px;
}
.result-row{
  display:flex; justify-content:space-between; align-items:baseline;
  padding:12px 0; border-bottom:1px solid rgba(255,255,255,.12);
}
.result-row:last-of-type{border-bottom:none;}
.result-row .amount{font-family:var(--font-mono); font-size:1.3rem; font-weight:700;}
.result-row.win .amount{color:var(--cheap);}
.result-row.lose .amount{color:var(--expensive);}
.result-note{font-size:.82rem; color:#B9C6C9; margin-top:14px;}
.result-verdict{
  margin-top:18px; padding:14px 16px; border-radius:10px; font-size:.92rem; font-weight:600;
}
.verdict-good{background:rgba(0,184,169,.16); color:#7FEAE0;}
.verdict-bad{background:rgba(255,122,69,.16); color:#FFB18F;}

/* ---------- table ---------- */
.table-scroll{overflow-x:auto; border-radius:var(--radius); border:1px solid var(--line);}
table{width:100%; border-collapse:collapse; background:var(--white); min-width:680px;}
th,td{padding:14px 16px; text-align:left; font-size:.9rem; border-bottom:1px solid var(--line);}
th{
  font-family:var(--font-mono); font-size:.72rem; text-transform:uppercase; letter-spacing:.06em;
  color:var(--ink-soft); background:var(--paper-dim);
}
tr:last-child td{border-bottom:none;}
td.num{font-family:var(--font-mono);}
.badge{
  display:inline-block; padding:3px 9px; border-radius:999px; font-size:.72rem; font-weight:700;
  background:rgba(0,184,169,.15); color:var(--cheap-dark);
}

.table-disclaimer{font-size:.8rem; color:var(--ink-soft); margin-top:12px;}

/* ---------- articles ---------- */
.articles-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:22px;}
@media (max-width:760px){.articles-grid{grid-template-columns:1fr;}}
.article-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:26px; text-decoration:none; color:var(--ink); display:block;
  transition:box-shadow .15s ease, transform .15s ease;
}
.article-card:hover{box-shadow:0 10px 26px rgba(14,36,48,.1); transform:translateY(-2px);}
.article-tag{font-family:var(--font-mono); font-size:.72rem; color:var(--expensive-dark); text-transform:uppercase; letter-spacing:.06em;}
.article-card h3{margin:.5em 0 .4em;}
.article-card p{color:var(--ink-soft); font-size:.92rem; margin-bottom:0;}
.read-more{font-size:.85rem; font-weight:700; margin-top:14px; display:inline-block;}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;}
.faq-item{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  margin-bottom:12px; overflow:hidden;
}
.faq-item summary{
  padding:20px 24px; cursor:pointer; font-weight:600; font-size:1rem;
  list-style:none; display:flex; justify-content:space-between; align-items:center; gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+"; font-family:var(--font-display); font-size:1.4rem; color:var(--cheap-dark);
  flex-shrink:0; transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item[open] summary{border-bottom:1px solid var(--line);}
.faq-answer{padding:2px 24px 22px; color:var(--ink-soft); font-size:.95rem;}
.faq-answer p{margin:0;}

/* ---------- lead form ---------- */
.lead{
  background:var(--ink); color:var(--white); border-radius:24px; padding:48px 40px;
}
.lead .section-head h2, .lead .section-head p{color:var(--white);}
.lead .section-head p{color:#B9C6C9;}
.lead-grid{display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:start;}
@media (max-width:860px){.lead-grid{grid-template-columns:1fr;}}
.lead-points{list-style:none; padding:0; margin:0;}
.lead-points li{
  display:flex; gap:12px; padding:12px 0; border-bottom:1px solid rgba(255,255,255,.1); font-size:.95rem;
}
.lead-points li:last-child{border-bottom:none;}
.lead-points .ico{color:var(--cheap); font-weight:800;}

form.lead-form{background:var(--white); border-radius:16px; padding:26px; color:var(--ink);}
form.lead-form .field label{color:var(--ink);}
form.lead-form input, form.lead-form select, form.lead-form textarea{
  width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:10px;
  font-family:var(--font-body); font-size:.95rem; margin-bottom:14px; background:var(--paper);
}
form.lead-form button{width:100%;}
.form-status{font-size:.85rem; margin-top:10px; display:none;}
.form-status.show{display:block;}

/* ---------- footer ---------- */
footer{padding:40px 0 60px; border-top:1px solid var(--line); font-size:.85rem; color:var(--ink-soft);}
footer .wrap{display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;}

/* ---------- article page ---------- */
.article-hero{padding:48px 0 20px;}
.article-body{max-width:70ch; margin:0 auto; padding-bottom:40px;}
.article-body h2{margin-top:1.6em;}
.article-body ul{padding-left:1.2em;}
.back-link{font-size:.9rem; font-weight:600; text-decoration:none; display:inline-flex; align-items:center; gap:6px; margin-bottom:18px;}
.callout{
  background:var(--white); border-left:4px solid var(--cheap); border-radius:0 12px 12px 0;
  padding:18px 20px; margin:24px 0; font-size:.94rem;
}
.inline-cta{
  background:var(--ink); color:var(--white); border-radius:16px; padding:28px; text-align:center; margin:36px 0;
}
.inline-cta a{margin-top:14px;}

/* ============================================================
   KALKULATOR PV + MAGAZYN — dodatkowe klasy (dopisane, nic
   z powyższego nie zostało zmienione)
   ============================================================ */

.field-hint{font-size:.76rem; color:var(--ink-soft); opacity:.8; margin-top:6px; line-height:1.4;}

.calc-actions{margin-top:8px;}
.calc-actions .btn{width:100%; justify-content:center; border:none;}

.status-line{
  font-family:var(--font-mono); font-size:.82rem; color:var(--ink-soft);
  display:flex; align-items:center; gap:8px; margin-top:14px;
}
.status-line .spin{
  width:12px; height:12px; border-radius:50%;
  border:2px solid var(--line); border-top-color:var(--cheap-dark);
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

.headline-savings{text-align:center; padding:6px 0 22px;}
.headline-savings .big-amount{
  font-family:var(--font-mono); font-weight:700;
  font-size:clamp(2.2rem,6vw,3.4rem); color:var(--cheap);
  line-height:1;
}
.headline-savings .big-label{font-size:.92rem; color:#B9C6C9; margin-top:8px;}

.dostawca-bar-row{margin:16px 0;}
.dostawca-bar-row .dbr-label{
  display:flex; justify-content:space-between; align-items:baseline;
  font-size:.88rem; margin-bottom:6px;
}
.dostawca-bar-row .dbr-name{font-weight:600;}
.dostawca-bar-row .dbr-name .badge{margin-left:8px; vertical-align:middle;}
.dostawca-bar-row .dbr-amount{font-family:var(--font-mono); font-weight:700;}
.dostawca-bar-track{background:rgba(255,255,255,.12); border-radius:6px; height:12px; overflow:hidden;}
.dostawca-bar-fill{height:100%; border-radius:6px; background:var(--cheap); transition:width .5s ease;}
.dostawca-bar-fill.ref{background:var(--expensive);}

.disclaimer-box{
  background:var(--paper-dim); border-radius:var(--radius); padding:18px 20px;
  font-size:.84rem; color:var(--ink-soft); margin-top:28px;
}