/* Podstawy: zmienne, reset, typografia, układ, przyciski, formularze. Mobile first. */

:root {
  --bg: #090909;
  --bg-section: #141414;
  --bg-card: #1c1c1c;
  --line: #2b2b2b;
  --yellow: #ffcc00;
  --yellow-hover: #ffd633;
  --text: #ffffff;
  --muted: #a3a3a3;
  --error: #ff8a80;
  --success: #7ddc8a;

  --font-body: "Barlow", "Segoe UI", Roboto, Arial, sans-serif;
  --font-display: "Barlow Condensed", "Arial Narrow", "Segoe UI", Arial, sans-serif;

  --container: 1200px;
  --gutter: 1.25rem;
  --section-space: 4.5rem;
  --nav-height: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-height) + 1rem);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
}

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

img {
  height: auto;
}

h1,
h2,
h3,
p,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

a {
  color: var(--yellow);
}

a:hover {
  color: var(--yellow-hover);
}

:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--yellow);
  color: #090909;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

/* Układ */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-space);
}

.section--alt {
  background: var(--bg-section);
}

.section__head {
  margin-bottom: 2.5rem;
  max-width: 46rem;
}

.section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  line-height: 1;
  text-transform: uppercase;
  text-wrap: balance;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--yellow);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  flex: none;
  width: 2.5rem;
  height: 4px;
  background: var(--yellow);
  transform-origin: left;
}

.lead,
.prose {
  color: var(--muted);
  font-size: 1.125rem;
}

.prose p + p {
  margin-top: 1rem;
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr);
}

.split {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.split__text > * + * {
  margin-top: 1.25rem;
}

.split__text > .eyebrow + * {
  margin-top: 0;
}

.split__media img {
  width: 100%;
  border: 1px solid var(--line);
}

/* Pas ostrzegawczy */

.hazard {
  height: 14px;
  background: repeating-linear-gradient(135deg, var(--yellow) 0 16px, #090909 16px 32px);
}

.hazard--dark {
  background: repeating-linear-gradient(135deg, #090909 0 16px, var(--yellow) 16px 32px);
}

/* Przyciski */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  min-height: 3.25rem;
  padding: 0 1.5rem;
  border: 2px solid transparent;
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--small {
  min-height: 2.75rem;
  padding: 0 1.125rem;
}

.btn--primary {
  background: var(--yellow);
  color: #090909;
}

.btn--primary:hover {
  background: var(--yellow-hover);
  color: #090909;
}

.btn--ghost {
  border-color: var(--text);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--yellow);
  color: var(--yellow);
}

.btn--dark {
  background: #090909;
  color: var(--yellow);
}

.btn--dark:hover {
  background: #1c1c1c;
  color: var(--yellow);
}

.btn--outline-dark {
  border-color: #090909;
  color: #090909;
}

.btn--outline-dark:hover {
  background: #090909;
  color: var(--yellow);
}

/* Formularze */

.form {
  display: grid;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
}

.form__row {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, 1fr);
}

.form__trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.field {
  display: grid;
  gap: 0.5rem;
}

.field__label {
  font-weight: 600;
}

.field__optional {
  color: var(--muted);
  font-weight: 400;
}

.field__control {
  width: 100%;
  min-height: 3.25rem;
  padding: 0.75rem 1rem;
  background: #0f0f0f;
  border: 2px solid #5c5c5c;
  border-radius: 0;
  color: var(--text);
  font: inherit;
}

textarea.field__control {
  resize: vertical;
}

.field__control:focus {
  border-color: var(--yellow);
  outline: none;
}

.field--error .field__control {
  border-color: var(--error);
}

.field__error {
  color: var(--error);
  font-size: 0.9375rem;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.9375rem;
  cursor: pointer;
}

.check input {
  flex: none;
  width: 1.375rem;
  height: 1.375rem;
  margin: 0.125rem 0 0;
  accent-color: var(--yellow);
}

.form__submit {
  justify-self: start;
}

.alerts {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.form .alerts {
  margin-bottom: 0;
}

.alert {
  padding: 0.875rem 1rem;
  border: 2px solid var(--line);
  font-weight: 500;
}

.alert--success {
  border-color: var(--success);
  color: var(--success);
}

.alert--error {
  border-color: var(--error);
  color: var(--error);
}

/* Animacje wejścia (tylko gdy działa JavaScript) */

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: calc(var(--i, 0) * 70ms);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

.js .reveal .eyebrow::before {
  transform: scaleX(0);
  transition: transform 0.6s var(--ease) 0.2s;
}

.js .reveal.is-visible .eyebrow::before {
  transform: scaleX(1);
}