/* Offer page shell: tokens + base + header (critical above-the-fold).
   Extracted from styles.css — keep in sync when editing shared header/tokens. */
/* MaTo Efekt — design tokens & homepage styles */

:root {
  --brand-navy: #0f2533;
  --brand-green: #54c26b;
  --neutral-white: #ffffff;
  --neutral-600: #66737c;
  --surface-soft: #f4f6f7;
  --border-default: #dce2e6;
  --surface-success-soft: #eaf6ee;

  --background-primary: var(--neutral-white);
  --background-secondary: var(--surface-soft);
  --background-inverse: var(--brand-navy);
  --background-success: var(--surface-success-soft);

  --text-primary: var(--brand-navy);
  --text-secondary: var(--neutral-600);
  --text-inverse: var(--neutral-white);
  --text-effect: var(--brand-green);

  --action-primary: var(--brand-navy);
  --action-primary-text: var(--neutral-white);
  --action-accent: var(--brand-green);
  --action-accent-text: var(--brand-navy);

  --border-strong: var(--neutral-600);
  --data-primary: var(--brand-navy);
  --data-positive: var(--brand-green);

  --font: "Manrope", system-ui, sans-serif;
  --container: 1240px;
  --header-h: 80px;

  --radius-small: 8px;
  --radius-button: 12px;
  --radius-medium: 16px;
  --radius-large: 24px;
  --radius-pill: 999px;

  --shadow-soft: 0 12px 40px rgba(15, 37, 51, 0.06);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-micro: 160ms;
  --duration-standard: 260ms;
  --duration-reveal: 420ms;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

html.no-smooth-scroll {
  scroll-behavior: auto !important;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.625;
  font-weight: 400;
  color: var(--text-primary);
  background:
    radial-gradient(ellipse 80% 50% at 100% -10%, rgba(84, 194, 107, 0.08), transparent 55%),
    radial-gradient(ellipse 60% 40% at 0% 20%, rgba(15, 37, 51, 0.04), transparent 50%),
    var(--background-primary);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

@media (min-width: 768px) {
  .container {
    width: min(100% - 64px, var(--container));
  }
}

@media (min-width: 1200px) {
  .container {
    width: min(100% - 160px, var(--container));
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Typography */
.eyebrow {
  position: relative;
  display: inline-block;
  font-size: 12px;
  line-height: 1.33;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  /* DESIGN.md 5.5: green is accent (underline), not small text on light bg */
  color: var(--text-primary);
  margin: 0 0 18px;
  padding-bottom: 10px;
}

.section--inverse .eyebrow {
  color: var(--text-effect);
}

.eyebrow::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 2.75rem;
  height: 2px;
  border-radius: 1px;
  background: var(--brand-green);
}

h1,
.h1 {
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2,
.h2 {
  margin: 0;
  font-size: clamp(2rem, 3.5vw, 2.5rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.025em;
}

h3,
.h3 {
  margin: 0;
  font-size: 1.375rem;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0;
  font-size: clamp(1.125rem, 1.5vw, 1.25rem);
  line-height: 1.5;
  color: var(--text-secondary);
  max-width: 40rem;
}

.accent {
  /* DESIGN.md 5.5 / BRAND: green is underline accent, not body text on light bg */
  color: var(--text-primary);
  background-image: linear-gradient(var(--brand-green), var(--brand-green));
  background-position: 0 92%;
  background-repeat: no-repeat;
  background-size: 100% 3px;
  padding-bottom: 0.06em;
}

.section--inverse .accent {
  color: var(--text-effect);
  background-image: none;
  padding-bottom: 0;
}

.section {
  padding: 80px 0;
}

@media (min-width: 1024px) {
  .section {
    padding: 112px 0;
  }
}

.section-head {
  max-width: 42rem;
  margin-bottom: 48px;
}

.section-head .lead {
  margin-top: 16px;
}

.section--soft {
  background: var(--background-secondary);
}

.section--inverse {
  background: var(--background-inverse);
  color: var(--text-inverse);
}

.section--inverse .lead,
.section--inverse .text-secondary {
  color: rgba(255, 255, 255, 0.72);
}

/* Buttons — DESIGN.md: tokeny, delikatny hover (micro), zielona strzałka na primary/secondary */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: var(--radius-button);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.2;
  cursor: pointer;
  transition:
    background var(--duration-micro) var(--ease),
    color var(--duration-micro) var(--ease),
    border-color var(--duration-micro) var(--ease),
    box-shadow var(--duration-micro) var(--ease);
}

.btn:focus-visible {
  outline: 2px solid var(--brand-green);
  outline-offset: 3px;
}

.btn::after {
  content: "";
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  background-color: var(--brand-green);
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='%23000' d='M8.2 4.5h7.3v7.3h-1.7V7.4l-7.6 7.6-1.2-1.2 7.6-7.6H8.2V4.5Z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='%23000' d='M8.2 4.5h7.3v7.3h-1.7V7.4l-7.6 7.6-1.2-1.2 7.6-7.6H8.2V4.5Z'/%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  transition: background-color var(--duration-micro) var(--ease);
}

.btn--accent::after {
  background-color: var(--action-accent-text);
}

.btn--ghost-light::after {
  background-color: var(--brand-green);
}

.btn--primary {
  background: var(--action-primary);
  color: var(--action-primary-text);
  border-color: var(--action-primary);
}

.btn--primary:hover {
  background: color-mix(in srgb, var(--action-primary) 88%, var(--neutral-white));
  border-color: var(--brand-green);
  box-shadow: var(--shadow-soft);
}

.btn--primary:active {
  background: var(--action-primary);
  box-shadow: none;
}

.btn--accent {
  background: var(--action-accent);
  color: var(--action-accent-text);
  border-color: var(--action-accent);
}

.btn--accent:hover {
  background: color-mix(in srgb, var(--action-accent) 82%, var(--brand-navy));
  border-color: var(--brand-navy);
  box-shadow: var(--shadow-soft);
}

.btn--accent:active {
  background: var(--action-accent);
  box-shadow: none;
}

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-default);
}

.btn--secondary:hover {
  background: var(--neutral-white);
  border-color: var(--brand-navy);
  box-shadow: var(--shadow-soft);
}

.btn--secondary:active {
  border-color: var(--border-strong);
  box-shadow: none;
}

.btn--ghost-light {
  background: transparent;
  color: var(--text-inverse);
  border-color: rgba(255, 255, 255, 0.28);
}

.btn--ghost-light:hover {
  border-color: var(--brand-green);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-soft);
}

.btn--ghost-light:active {
  background: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 559px) {
  .btn-group .btn {
    width: 100%;
  }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  transition:
    box-shadow var(--duration-standard) var(--ease),
    transform var(--duration-standard) var(--ease),
    top var(--duration-standard) var(--ease),
    opacity var(--duration-standard) var(--ease),
    background var(--duration-standard) var(--ease);
  will-change: transform;
}

.site-header.is-scrolled {
  box-shadow: 0 8px 24px rgba(15, 37, 51, 0.04);
}

.site-header.is-hidden {
  transform: translateY(-100%);
  box-shadow: none;
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .site-header {
    transition: box-shadow var(--duration-standard) var(--ease);
  }
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.logo img {
  width: min(168px, 42vw);
  height: auto;
}

.nav {
  display: none;
  align-items: center;
  gap: 28px;
}

.nav a {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: var(--brand-green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-standard) var(--ease);
}

.nav a:hover::after,
.nav a:focus-visible::after {
  transform: scaleX(1);
}

.nav a:focus-visible {
  outline: 2px solid var(--brand-green);
  outline-offset: 4px;
  border-radius: 2px;
}

/* Only the desktop header CTA — mobile panel CTA must stay visible */
.site-header__inner > .header-cta {
  display: none;
}

.menu-toggle {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-small);
  background: var(--neutral-white);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--brand-navy);
  transition: transform var(--duration-standard) var(--ease), opacity var(--duration-micro) var(--ease);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  position: absolute;
  inset: var(--header-h) 0 auto;
  background: var(--neutral-white);
  border-bottom: 1px solid var(--border-default);
  padding: 16px 20px 24px;
  box-shadow: var(--shadow-soft);
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav nav {
  display: grid;
  gap: 4px;
}

.mobile-nav a {
  display: block;
  padding: 14px 8px;
  font-weight: 600;
  border-radius: var(--radius-small);
}

.mobile-nav a:hover,
.mobile-nav a:focus-visible {
  background: var(--surface-soft);
}

.mobile-nav .btn {
  width: 100%;
  margin-top: 12px;
}

@media (min-width: 1024px) {
  .nav,
  .site-header__inner > .header-cta {
    display: inline-flex;
  }

  .menu-toggle,
  .mobile-nav {
    display: none !important;
  }
}