/* ===== CSS Variables ===== */
:root {
  --color-bg: #1a1a1a;
  --color-bg-dark: #121212;
  --color-text: #ffffff;
  --color-text-dark: #1a1a1a;
  --color-card: #a4b6f7;
  --color-primary: #1d4ed8;
  --color-primary-hover: #2563eb;
  --color-success: #22c55e;
  --color-border: rgba(255, 255, 255, 0.25);
  --color-overlay: rgba(0, 0, 0, 0.65);

  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "Roboto Mono", "Courier New", monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --container-max: 1100px;
  --container-narrow: 720px;

  --transition: 0.2s ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

address {
  font-style: normal;
}

/* ===== Accessibility ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 9999;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-primary);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-sm);
}

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

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.container--narrow {
  max-width: var(--container-narrow);
}

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

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

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section__title--mono {
  font-family: var(--font-mono);
  font-weight: 500;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    background-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

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

.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(29, 78, 216, 0.35);
}

.btn--glow {
  box-shadow: 0 0 24px rgba(29, 78, 216, 0.5);
}

.btn--full {
  width: 100%;
}

.btn:active {
  transform: scale(0.98);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  backdrop-filter: blur(2px);
  z-index: 1;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  width: 100%;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem var(--space-md);
  opacity: 1;

  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav__logo {
  font-size: clamp(0.875rem, 2.5vw, 1.125rem);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition:
    transform var(--transition),
    opacity var(--transition);
}

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

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

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

.nav__menu {
  display: none;
  position: absolute;
  top: 100%;
  right: var(--space-md);
  flex-direction: column;
  gap: var(--space-xs);
  background: rgba(26, 26, 26, 0.95);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  min-width: 160px;
}

.nav__menu.is-open {
  display: flex;
}

.nav__menu a {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition);
}

.nav__menu a:hover,
.nav__menu a:focus-visible {
  background-color: rgba(255, 255, 255, 0.1);
}

/* ===== Hero Content ===== */
.hero__content {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-top: var(--space-2xl);
  padding: var(--space-lg) var(--space-md) var(--space-xl);
}

.hero__title {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  max-width: 20ch;
}

.hero__content > .btn {
  margin-bottom: var(--space-xl);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  padding: 1rem 2.5rem;
}

.hero__features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  width: 100%;
  max-width: 900px;
  margin-bottom: var(--space-xl);
}

.hero__feature {
  text-align: center;
}

.hero__feature-icon {
  width: 32px;
  height: 32px;
  margin-inline: auto;
  margin-bottom: var(--space-xs);
  border-radius: 50%;
  object-fit: cover;
}

.hero__feature-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.hero__feature ul {
  font-size: 0.9375rem;
  opacity: 0.9;
}

.hero__feature p {
  font-size: 0.9375rem;
  opacity: 0.9;
  max-width: 28ch;
  margin-inline: auto;
}

.hero__scroll {
  font-size: 0.875rem;
  opacity: 0.75;
  transition: opacity var(--transition);
  margin-top: auto;
}

.hero__scroll:hover,
.hero__scroll:focus-visible {
  opacity: 1;
}

/* ===== Hero entrance animation ===== */
@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-anim {
  opacity: 0;
  animation: heroFadeUp 0.7s ease forwards;
}

.hero-anim--1 {
  animation-delay: 0.1s;
}
.hero-anim--2 {
  animation-delay: 0.3s;
}
.hero-anim--3 {
  animation-delay: 0.5s;
}
.hero-anim--4 {
  animation-delay: 0.6s;
}
.hero-anim--5 {
  animation-delay: 0.7s;
}
.hero-anim--6 {
  animation-delay: 0.9s;
}

/* Slow, ambient drift on the hero background photo */
.hero__bg {
  animation: heroBgZoom 20s ease-in-out infinite alternate;
}

@keyframes heroBgZoom {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.08);
  }
}

/* ===== Scroll reveal (used on section headings and cards) ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.steps-list .step-card:nth-child(1) {
  transition-delay: 0s;
}
.steps-list .step-card:nth-child(2) {
  transition-delay: 0.08s;
}
.steps-list .step-card:nth-child(3) {
  transition-delay: 0.16s;
}
.steps-list .step-card:nth-child(4) {
  transition-delay: 0.24s;
}
.steps-list .step-card:nth-child(5) {
  transition-delay: 0.32s;
}

.problem-accordion .problem-item:nth-child(1) {
  transition-delay: 0s;
}
.problem-accordion .problem-item:nth-child(2) {
  transition-delay: 0.08s;
}
.problem-accordion .problem-item:nth-child(3) {
  transition-delay: 0.16s;
}
.problem-accordion .problem-item:nth-child(4) {
  transition-delay: 0.24s;
}
.problem-accordion .problem-item:nth-child(5) {
  transition-delay: 0.32s;
}
.problem-accordion .problem-item:nth-child(6) {
  transition-delay: 0.4s;
}

.faq-list .faq-item:nth-child(1) {
  transition-delay: 0s;
}
.faq-list .faq-item:nth-child(2) {
  transition-delay: 0.08s;
}
.faq-list .faq-item:nth-child(3) {
  transition-delay: 0.16s;
}
.faq-list .faq-item:nth-child(4) {
  transition-delay: 0.24s;
}

/* ===== Problems Accordion ===== */
.problem-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 640px;
  margin-inline: auto;
}

.problem-item {
  position: relative;
  isolation: isolate;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg-dark);
  border: 1px solid var(--color-border);
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.problem-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.35);
  border-color: rgba(255, 255, 255, 0.4);
}

.problem-item__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-size: cover;
  background-position: center;
}

.problem-item__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.55) 0%,
    rgba(0, 0, 0, 0.8) 100%
  );
}

.problem-item__question {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: clamp(0.9375rem, 2.5vw, 1.0625rem);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.problem-item__question::-webkit-details-marker {
  display: none;
}

.problem-item__question:hover,
.problem-item__question:focus-visible {
  background-color: rgba(255, 255, 255, 0.04);
}

.problem-item__chevron {
  flex-shrink: 0;
  opacity: 0.85;
  transition: transform var(--transition);
}

.problem-item[open] .problem-item__chevron {
  transform: rotate(90deg);
}

.problem-item__panel {
  padding: 0 var(--space-md) var(--space-md);
}

.problem-item__subtitle {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.problem-item__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.problem-item__list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: 0.9375rem;
  line-height: 1.5;
  opacity: 0.95;
}

.problem-item__list li::before {
  content: "✓";
  flex-shrink: 0;
  color: var(--color-success);
  font-weight: 700;
}

/* ===== Steps ===== */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.step-card {
  display: grid;
  gap: 5px 10px;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr;
  background-color: var(--color-card);
  color: var(--color-text-dark);
  border-radius: 1rem;
  padding: var(--space-sm);
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

.step-card p {
  grid-column: span 2;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25);
}

.step-card__number {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  background: var(--color-text);
  color: var(--color-text-dark);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  border-radius: 1rem;
}

.step-card__title {
  width: 100%;
  font-size: 2rem;
  font-weight: 700;
  place-self: start start;
}

/* ===== Price Table ===== */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.price-table {
  width: 100%;
  max-width: 640px;
  margin-inline: auto;
  border-collapse: collapse;
  font-size: clamp(0.875rem, 2vw, 1rem);
}

.price-table th,
.price-table td {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  text-align: left;
}

.price-table th:last-child,
.price-table td:last-child {
  text-align: center;
  white-space: nowrap;
}

.price-table thead th {
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
}

.price-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

/* ===== FAQ ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  font-family: var(--font-mono);
}

.faq-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-item__question {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) 0;
  font-size: clamp(0.875rem, 2.5vw, 1.0625rem);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition:
    opacity var(--transition),
    padding-left var(--transition);
}

.faq-item__question:hover,
.faq-item__question:focus-visible {
  opacity: 0.8;
  padding-left: 0.25rem;
}

.faq-item__question::-webkit-details-marker {
  display: none;
}

.faq-item__chevron {
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item[open] .faq-item__chevron {
  transform: rotate(90deg);
}

.faq-item__answer {
  padding: 0 0 var(--space-sm) 1.25rem;
}

.faq-item__answer p {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.65;
  opacity: 0.85;
}

/* ===== Sekcja Kontakt ===== */
.contact-section__header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.contact-section__subtitle {
  color: #c5c5c5;
  font-size: 1.05rem;
  margin-top: var(--space-xs);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-card--full {
    grid-column: span 2;
  }
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--color-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.contact-card__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: var(--radius-md, 12px);
  background-color: rgba(255, 255, 255, 0.05);
  color: #000000;
  text-decoration: none;
  transition:
    transform var(--transition),
    background-color var(--transition),
    color var(--transition),
    box-shadow var(--transition);
}

.contact-card__btn:hover,
.contact-card__btn:focus-visible {
  background-color: var(--color-primary);
  color: #ffffff;
  transform: scale(1.08);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  outline: none;
}

.contact-card__icon {
  width: 24px;
  height: 24px;
}

.contact-card__content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  user-select: text;
}

.contact-card__label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  color: #000000;
}

.contact-card__value {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  word-break: break-word;
}

/* ===== Footer ===== */
.footer {
  background-color: var(--color-bg-dark);
  padding: var(--space-md) 0;
  text-align: center;
  font-size: 0.875rem;
  opacity: 0.7;
}

/* ===== Responsive – Tablet+ ===== */
@media (min-width: 640px) {
  .hero__features {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }

  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

@media (min-width: 768px) {
  .nav__toggle {
    display: none;
  }

  .nav__menu {
    display: flex;
    position: static;
    flex-direction: row;
    gap: var(--space-md);
    background: none;
    border: none;
    padding: 0;
    min-width: auto;
  }

  .nav__menu a {
    padding: var(--space-xs) 0;
    font-size: 1rem;
  }

  .nav__menu a:hover,
  .nav__menu a:focus-visible {
    background: none;
    opacity: 0.75;
  }
}

@media (min-width: 1024px) {
  .section {
    padding-block: var(--space-2xl);
  }
}

/* ===== Reduced Motion ===== */
@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;
  }
}