/* ============================================
   SMARTHOME BUDAPEST — precision-light system
   Paper / ink / cobalt. Space Grotesk + Schibsted Grotesk.
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Schibsted+Grotesk:ital,wght@0,400;0,500;0,600;1,400&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --paper:   #F7F8FA;
  --white:   #FFFFFF;
  --ink:     #0F1115;
  --slate:   #5A6472;
  --mist:    #9AA3AF;
  --line:    #E3E6EB;
  --cobalt:  #2447E8;
  --cobalt-soft: #EBEFFE;
  --ok:      #1D9E6A;

  --display: 'Space Grotesk', sans-serif;
  --body:    'Schibsted Grotesk', sans-serif;

  --max: 1160px;
  --pad: 96px 40px;
  --r: 10px;
  --r-lg: 16px;
  --t: 0.22s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 40px; }
.section { padding: var(--pad); }
.section-white { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

h1, h2, h3 { font-family: var(--display); line-height: 1.12; letter-spacing: -0.015em; }
h1 { font-size: clamp(2.4rem, 5vw, 3.9rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); font-weight: 600; }
h3 { font-size: 1.05rem; font-weight: 600; }

p { color: var(--slate); }
.lead { font-size: 1.12rem; max-width: 540px; }

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cobalt);
  margin-bottom: 18px;
}
.kicker::before { content: ''; width: 20px; height: 2px; background: var(--cobalt); }

/* --- Buttons --- */
.btn {
  display: inline-block;
  font-family: var(--display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 14px 28px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: var(--t);
}
.btn-cobalt { background: var(--cobalt); color: #fff; }
.btn-cobalt:hover { background: #1a37c4; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink); }

/* --- Nav --- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247,248,250,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-in {
  max-width: var(--max); margin: 0 auto; padding: 0 40px;
  height: 68px; display: flex; align-items: center; justify-content: space-between;
}
.logo { font-family: var(--display); font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; }
.logo em { font-style: normal; color: var(--cobalt); }
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a { font-size: 0.88rem; font-weight: 500; color: var(--slate); transition: var(--t); }
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  font-family: var(--display); font-size: 0.82rem; font-weight: 600;
  background: var(--ink); color: #fff; padding: 10px 20px; border-radius: 8px; transition: var(--t);
}
.nav-cta:hover { background: var(--cobalt); }

/* --- Hero --- */
.hero { padding: 84px 40px 90px; overflow: hidden; }
.hero-in {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 64px; align-items: center;
}
.hero h1 em { font-style: normal; color: var(--cobalt); }
.hero .lead { margin: 22px 0 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; font-size: 0.82rem; color: var(--mist); }

/* Dashboard card stack — the hero visual */
.dash {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.dash-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 20px 22px;
  box-shadow: 0 10px 30px rgba(15,17,21,0.06);
}
.dash-card.wide { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; }
.dash-label {
  font-family: var(--display); font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--mist);
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px;
}
.dash-value { font-family: var(--display); font-size: 1.7rem; font-weight: 700; letter-spacing: -0.02em; }
.dash-value small { font-size: 0.9rem; color: var(--mist); font-weight: 500; }
.dash-sub { font-size: 0.78rem; color: var(--slate); margin-top: 4px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); display: inline-block; }
.dot.blue { background: var(--cobalt); }

.meter { height: 6px; background: var(--paper); border-radius: 3px; margin-top: 12px; overflow: hidden; }
.meter i { display: block; height: 100%; background: var(--cobalt); border-radius: 3px; }

.scene-row { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.scene {
  font-family: var(--display); font-size: 0.72rem; font-weight: 600;
  padding: 6px 12px; border-radius: 20px; border: 1px solid var(--line); color: var(--slate);
}
.scene.on { background: var(--cobalt-soft); border-color: transparent; color: var(--cobalt); }

/* --- Trust bar --- */
.trust {
  border-top: 1px solid var(--line);
  background: var(--white);
  padding: 18px 40px;
}
.trust-in {
  max-width: var(--max); margin: 0 auto;
  display: flex; justify-content: center; gap: 44px; flex-wrap: wrap;
}
.trust span {
  font-family: var(--display); font-size: 0.76rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--slate);
  display: flex; align-items: center; gap: 9px;
}
.trust span::before { content: ''; width: 6px; height: 6px; background: var(--cobalt); border-radius: 1px; transform: rotate(45deg); }

/* --- Value props --- */
.props { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.prop {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 30px 28px; transition: var(--t);
}
.prop:hover { border-color: var(--cobalt); transform: translateY(-2px); }
.prop-num {
  font-family: var(--display); font-size: 0.72rem; font-weight: 600;
  color: var(--cobalt); letter-spacing: 0.1em; margin-bottom: 14px; display: block;
}
.prop h3 { margin-bottom: 10px; }
.prop p { font-size: 0.92rem; }

/* --- System selector (signature) --- */
.selector { margin-top: 48px; }
.seg {
  display: inline-flex; background: var(--white); border: 1px solid var(--line);
  border-radius: 10px; padding: 4px; gap: 2px; flex-wrap: wrap;
}
.seg button {
  font-family: var(--display); font-size: 0.85rem; font-weight: 600;
  padding: 10px 22px; border: none; background: transparent; color: var(--slate);
  border-radius: 7px; cursor: pointer; transition: var(--t);
}
.seg button.active { background: var(--ink); color: #fff; }
.sys-panel {
  margin-top: 20px; background: var(--white); border: 1px solid var(--line);
  border-radius: var(--r-lg); overflow: hidden;
}
.sys-head {
  padding: 26px 32px; display: flex; justify-content: space-between; align-items: baseline;
  gap: 20px; flex-wrap: wrap; border-bottom: 1px solid var(--line);
}
.sys-head h3 { font-size: 1.25rem; }
.sys-tag {
  font-family: var(--display); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--cobalt);
  background: var(--cobalt-soft); padding: 6px 12px; border-radius: 6px;
}
.sys-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.sys-cell { padding: 22px 32px; border-right: 1px solid var(--line); }
.sys-cell:last-child { border-right: none; }
.sys-cell b {
  font-family: var(--display); font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--mist);
  display: block; margin-bottom: 6px;
}
.sys-cell span { font-size: 0.92rem; color: var(--ink); font-weight: 500; }
.sys-verdict { padding: 20px 32px; background: var(--paper); font-size: 0.92rem; color: var(--slate); }
.sys-verdict strong { color: var(--ink); }

/* --- Steps --- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 48px; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.step { background: var(--white); padding: 34px 30px; border-right: 1px solid var(--line); }
.step:last-child { border-right: none; }
.step-num { font-family: var(--display); font-size: 2rem; font-weight: 700; color: var(--cobalt); display: block; margin-bottom: 14px; }
.step h3 { margin-bottom: 8px; }
.step p { font-size: 0.92rem; }

/* --- Price bands --- */
.bands { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.band { background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 32px 30px; }
.band.mid { border-color: var(--cobalt); box-shadow: 0 12px 32px rgba(36,71,232,0.08); }
.band h3 { color: var(--slate); font-size: 0.9rem; }
.band-price { font-family: var(--display); font-size: 1.9rem; font-weight: 700; margin: 10px 0 2px; letter-spacing: -0.02em; }
.band-note { font-size: 0.78rem; color: var(--mist); text-transform: uppercase; letter-spacing: 0.06em; font-family: var(--display); font-weight: 600; }
.band ul { margin: 22px 0 26px; }
.band li { font-size: 0.9rem; color: var(--slate); padding: 8px 0; border-bottom: 1px solid var(--paper); display: flex; gap: 10px; }
.band li::before { content: '—'; color: var(--cobalt); }
.band .btn { width: 100%; text-align: center; }

/* --- FAQ --- */
.faq { max-width: 760px; margin: 40px auto 0; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; list-style: none; padding: 22px 0;
  font-family: var(--display); font-weight: 600; font-size: 1rem;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--cobalt); font-size: 1.3rem; transition: var(--t); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .a { padding: 0 32px 22px 0; font-size: 0.95rem; color: var(--slate); }

/* --- CTA --- */
.cta { background: var(--ink); color: #fff; }
.cta .kicker { color: #8FA3FF; }
.cta .kicker::before { background: #8FA3FF; }
.cta h2 { color: #fff; }
.cta p { color: rgba(255,255,255,0.65); }
.cta-in { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.form-row { margin-bottom: 16px; }
.form-row label {
  display: block; font-family: var(--display); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.5); margin-bottom: 8px;
}
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 13px 16px; border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.16); background: rgba(255,255,255,0.06);
  color: #fff; font-family: var(--body); font-size: 0.95rem; outline: none; transition: var(--t);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--cobalt); }
.form-row textarea { min-height: 100px; resize: vertical; }
.form-note { font-size: 0.78rem; color: rgba(255,255,255,0.4); margin-top: 12px; }

/* --- Footer --- */
footer { background: var(--white); border-top: 1px solid var(--line); padding: 56px 40px 30px; }
.foot-in { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; }
.foot-in p { font-size: 0.88rem; max-width: 300px; margin-top: 10px; }
.foot-col b {
  font-family: var(--display); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--mist);
  display: block; margin-bottom: 16px;
}
.foot-col li { margin-bottom: 9px; }
.foot-col a { font-size: 0.9rem; color: var(--slate); transition: var(--t); }
.foot-col a:hover { color: var(--cobalt); }
.foot-bottom {
  max-width: var(--max); margin: 40px auto 0; padding-top: 20px;
  border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: 0.8rem; color: var(--mist);
}

/* --- Reveal --- */
html.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
html.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 2px; }

/* --- Responsive --- */
@media (max-width: 960px) {
  .hero-in, .cta-in { grid-template-columns: 1fr; gap: 44px; }
  .props, .bands, .steps { grid-template-columns: 1fr; }
  .step { border-right: none; border-bottom: 1px solid var(--line); }
  .sys-grid { grid-template-columns: 1fr 1fr; }
  .sys-cell { border-bottom: 1px solid var(--line); }
  .nav-links { display: none; }
  .foot-in { grid-template-columns: 1fr; gap: 32px; }
  .section { padding: 64px 24px; }
  .hero { padding: 56px 24px 64px; }
  .wrap, .nav-in { padding: 0 24px; }
}