/* =========================================================
   talotosite.fi — Marketing site styles
   Navy + copper design language, shared with the app and the
   printed huoltokirja. Vuosikehä mark throughout.
   ========================================================= */

:root {
  --rk-bg: #0b1220;
  --rk-bg-soft: #0f1830;
  --rk-panel: #111a2e;
  --rk-panel-2: #16213a;
  --rk-border: #23304a;
  --rk-border-soft: #1a2540;

  --rk-text: #e9eef7;
  --rk-text-muted: #93a1ba;
  --rk-text-faint: #5f6d89;

  --rk-copper: #e0803f;
  --rk-copper-soft: #e0803f1a;
  --rk-copper-border: #e0803f4a;

  --rk-green: #35b57c;
  --rk-blue: #4a9fe0;
  --rk-purple: #9b7fe0;
  --rk-amber: #e0b23f;

  --rk-radius: 14px;
  --rk-radius-lg: 22px;
  --rk-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--rk-font);
  background: var(--rk-bg);
  color: var(--rk-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
h1, h2, h3 { font-weight: 800; letter-spacing: -0.025em; margin: 0 0 14px; }
p { color: var(--rk-text-muted); margin: 0 0 16px; }
.rk-container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
section { padding: 128px 0; }

/* ---------- Shared accent chip (same device as the printed book & flyer) ---------- */
.rk-chip {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--rk-copper); color: #1a0f04;
  font-weight: 800; font-size: 13px; flex-shrink: 0;
}
.rk-rule { width: 46px; height: 3px; border-radius: 2px; background: var(--rk-copper); }

/* ---------- Nav ---------- */
.rk-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,18,32,0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rk-border-soft);
}
.rk-nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; max-width: 1180px; margin: 0 auto; }
.rk-nav-brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 18px; letter-spacing: -0.01em; }
.rk-mark { width: 30px; height: 30px; flex-shrink: 0; display: block; }
.rk-nav-links { display: flex; gap: 32px; align-items: center; }
.rk-nav-links a { font-weight: 600; font-size: 14px; color: var(--rk-text-muted); transition: color .15s; }
.rk-nav-links a:hover { color: var(--rk-text); }
.rk-nav-cta { display: flex; gap: 10px; align-items: center; }
.rk-lang-switch { display: inline-flex; border: 1px solid var(--rk-border); border-radius: 999px; padding: 3px; gap: 3px; background: var(--rk-bg-soft); }
.rk-lang-btn {
  display: flex; align-items: center; justify-content: center;
  border: 1.5px solid transparent; background: none;
  padding: 3px; border-radius: 999px;
  cursor: pointer; user-select: none; transition: border-color .15s, transform .15s; line-height: 0;
}
.rk-lang-btn svg { display: block; border-radius: 3px; }
.rk-lang-btn.active { border-color: var(--rk-copper); transform: scale(1.06); }
.rk-lang-btn:hover:not(.active) { border-color: var(--rk-border-soft); }
.rk-nav-toggle { display: none; background: none; border: 1px solid var(--rk-border); color: var(--rk-text); border-radius: 8px; padding: 8px 10px; }

/* ---------- Buttons ---------- */
.rk-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 15px 26px; border-radius: 10px; font-weight: 700; font-size: 15px;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .15s ease, background .15s, border-color .15s, color .15s;
}
.rk-btn:active { transform: translateY(1px); }
.rk-btn-primary { background: var(--rk-copper); color: #1a0f04; }
.rk-btn-primary:hover { background: #ec9257; }
.rk-btn-ghost { background: transparent; color: var(--rk-text); border-color: var(--rk-border); }
.rk-btn-ghost:hover { border-color: var(--rk-text-faint); }
.rk-btn-sm { padding: 10px 17px; font-size: 13px; }

/* ---------- Hero ---------- */
.rk-hero { padding-top: 160px; padding-bottom: 60px; background: var(--rk-bg); }
.rk-hero-grid { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 64px; align-items: center; }
.rk-eyebrow {
  display: flex; align-items: center; gap: 8px;
  color: var(--rk-copper); font-size: 13px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  margin-bottom: 26px;
}
.rk-hero h1 { font-size: 68px; line-height: 1.03; margin-bottom: 26px; letter-spacing: -0.03em; }
.rk-hero p.rk-sub { font-size: 19px; line-height: 1.55; color: var(--rk-text-muted); max-width: 520px; margin-bottom: 36px; }
.rk-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.rk-hero-trust { display: flex; flex-direction: column; gap: 12px; font-size: 13.5px; color: var(--rk-text-faint); border-top: 1px solid var(--rk-border-soft); padding-top: 24px; max-width: 480px; }
.rk-hero-trust span { display: flex; align-items: center; gap: 10px; }
.rk-icon-svg { flex-shrink: 0; vertical-align: -3px; color: var(--rk-copper); }

/* Hero visual mockup */
.rk-mock {
  background: var(--rk-panel);
  border: 1px solid var(--rk-border-soft);
  border-radius: var(--rk-radius-lg);
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
  padding: 22px;
}
.rk-mock-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.rk-mock-title { font-weight: 800; font-size: 14px; }
.rk-mock-badge { background: #35b57c1f; color: var(--rk-green); font-size: 11px; font-weight: 700; padding: 5px 11px; border-radius: 999px; }
.rk-mock-row { display: flex; justify-content: space-between; align-items: center; padding: 11px 0; border-bottom: 1px solid var(--rk-border-soft); font-size: 13px; }
.rk-mock-row span:first-child { color: var(--rk-text-faint); }
.rk-mock-row:last-child { border-bottom: none; }
.rk-mock-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 16px; }
.rk-mock-thumb { aspect-ratio: 1; border-radius: 8px; background: linear-gradient(135deg, #22304e, #16213a); border: 1px solid var(--rk-border-soft); overflow: hidden; }
.rk-mock-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.rk-mock-hash { margin-top: 16px; font-family: 'SF Mono', 'Menlo', monospace; font-size: 10px; color: var(--rk-text-faint); background: var(--rk-bg-soft); padding: 11px; border-radius: 8px; word-break: break-all; }

/* ---------- Section headers ---------- */
.rk-section-head { max-width: 680px; margin: 0 0 64px; }
.rk-section-head.rk-center { margin-left: auto; margin-right: auto; text-align: center; }
.rk-section-head h2 { font-size: 40px; line-height: 1.12; }
.rk-kicker { display: flex; align-items: center; gap: 10px; color: var(--rk-copper); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .07em; margin-bottom: 16px; }
.rk-section-head.rk-center .rk-kicker { justify-content: center; }

/* ---------- Problem ---------- */
.rk-problem { background: var(--rk-bg-soft); border-top: 1px solid var(--rk-border-soft); border-bottom: 1px solid var(--rk-border-soft); }
.rk-problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rk-border-soft); border: 1px solid var(--rk-border-soft); border-radius: var(--rk-radius-lg); overflow: hidden; }
.rk-problem-card { background: var(--rk-bg-soft); padding: 36px 32px; }
.rk-problem-card .rk-chip { margin-bottom: 20px; }
.rk-problem-card h3 { font-size: 19px; }
.rk-problem-card p { font-size: 14.5px; margin-bottom: 0; }

/* ---------- Solution flow ---------- */
.rk-flow { position: relative; }
.rk-flow-line { position: absolute; top: 15px; left: 0; right: 0; height: 1px; background: var(--rk-border-soft); display: none; }
.rk-flow-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; }
.rk-flow-step { }
.rk-flow-num {
  width: 30px; height: 30px; border-radius: 8px; background: var(--rk-copper); color: #1a0f04;
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 13px; margin-bottom: 22px;
  position: relative; z-index: 1;
}
.rk-flow-step h3 { font-size: 16.5px; margin-bottom: 8px; }
.rk-flow-step p { font-size: 13.5px; margin-bottom: 0; }

/* ---------- Roles ---------- */
.rk-roles-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--rk-border-soft); border: 1px solid var(--rk-border-soft); border-radius: var(--rk-radius-lg); overflow: hidden; }
.rk-role-card { background: var(--rk-bg); padding: 32px 26px; transition: background .15s; }
.rk-role-card:hover { background: var(--rk-panel); }
.rk-role-card .rk-chip { margin-bottom: 18px; font-size: 12px; width: 26px; height: 26px; }
.rk-role-card h3 { font-size: 17px; }
.rk-role-card > p { font-size: 13px; margin-bottom: 0; }
.rk-role-card ul { margin: 18px 0 0; padding: 14px 0 0; list-style: none; font-size: 13px; color: var(--rk-text-muted); border-top: 1px solid var(--rk-border-soft); }
.rk-role-card li { padding: 6px 0; }

/* ---------- Features ---------- */
.rk-features-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px 56px; }
.rk-feature-row { display: flex; gap: 18px; padding: 22px 0; border-top: 1px solid var(--rk-border-soft); }
.rk-feature-row:nth-child(odd) { }
.rk-feature-row .rk-chip { margin-top: 2px; }
.rk-feature-row h3 { font-size: 15.5px; margin-bottom: 5px; }
.rk-feature-row p { font-size: 13.5px; margin-bottom: 0; }

/* ---------- Pricing ---------- */
.rk-pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--rk-border-soft); border: 1px solid var(--rk-border-soft); border-radius: var(--rk-radius-lg); overflow: hidden; align-items: stretch; }
.rk-price-card { background: var(--rk-bg); padding: 32px 26px; display: flex; flex-direction: column; position: relative; }
.rk-price-card.rk-featured { background: var(--rk-panel); }
.rk-price-tag { position: absolute; top: 24px; right: 26px; background: var(--rk-copper); color: #1a0f04; font-size: 10.5px; font-weight: 800; padding: 4px 10px; border-radius: 999px; letter-spacing: .03em; text-transform: uppercase; }
.rk-price-name { font-weight: 700; font-size: 13px; color: var(--rk-text-muted); text-transform: uppercase; letter-spacing: .05em; }
.rk-price-amount { font-size: 34px; font-weight: 800; margin: 12px 0 4px; letter-spacing: -0.02em; }
.rk-price-amount span { font-size: 14px; color: var(--rk-text-faint); font-weight: 600; }
.rk-price-card ul { list-style: none; padding: 18px 0 0; margin: 18px 0 24px; font-size: 13px; color: var(--rk-text-muted); flex-grow: 1; border-top: 1px solid var(--rk-border-soft); }
.rk-price-card li { padding: 6px 0; }

/* ---------- CTA band ---------- */
.rk-cta-band {
  background: var(--rk-panel);
  border: 1px solid var(--rk-border-soft);
  border-radius: var(--rk-radius-lg);
  padding: 72px 50px;
  text-align: center;
}
.rk-cta-band h2 { font-size: 32px; max-width: 620px; margin-left: auto; margin-right: auto; }
.rk-cta-band p { max-width: 480px; margin-left: auto; margin-right: auto; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--rk-border-soft); padding: 64px 0 32px; }
.rk-footer-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 40px; margin-bottom: 48px; }
.rk-footer-brand { max-width: 320px; }
.rk-footer-cols { display: flex; gap: 72px; flex-wrap: wrap; }
.rk-footer-col h4 { font-size: 12.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--rk-text-faint); margin-bottom: 14px; font-weight: 700; }
.rk-footer-col a { display: block; font-size: 14px; color: var(--rk-text-muted); padding: 6px 0; }
.rk-footer-col a:hover { color: var(--rk-text); }
.rk-footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 12.5px; color: var(--rk-text-faint); border-top: 1px solid var(--rk-border-soft); padding-top: 22px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .rk-hero-grid { grid-template-columns: 1fr; }
  .rk-problem-grid, .rk-roles-grid, .rk-pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .rk-features-list { grid-template-columns: 1fr; gap: 0; }
  .rk-flow-steps { grid-template-columns: repeat(2, 1fr); }
  .rk-hero h1 { font-size: 44px; }
  .rk-hero { padding-top: 130px; }
  section { padding: 90px 0; }
  .rk-nav-links { display: none; }
  .rk-nav-toggle { display: block; }
}
@media (max-width: 640px) {
  .rk-nav-cta a.rk-btn { display: none; }
  section { padding: 64px 0; }
  .rk-problem-grid, .rk-roles-grid, .rk-pricing-grid, .rk-flow-steps { grid-template-columns: 1fr; }
  .rk-hero h1 { font-size: 34px; }
  .rk-cta-band { padding: 40px 22px; }
  .rk-section-head h2 { font-size: 28px; }
}