/* =========================================================
   Variables
   ========================================================= */
:root {
  /* Color Palette - tailored for modern, trustworthy audio studio brand */
  --color-bg: #05070b; /* deep, cinematic background */
  --color-bg-alt: #0a0e16;
  --color-surface: #111827;
  --color-surface-alt: #1f2937;

  --color-text: #f9fafb;
  --color-text-muted: #9ca3af;

  --color-primary: #6366f1; /* indigo accent */
  --color-primary-soft: rgba(99, 102, 241, 0.1);
  --color-primary-strong: #4f46e5;

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;

  --color-border-subtle: #1f2937;
  --color-border-strong: #374151;

  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem;  /* 36px */
  --font-size-5xl: 3rem;     /* 48px */

  --line-height-tight: 1.15;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing Scale (px converted to rem assuming 16px base) */
  --space-0: 0;
  --space-4: 0.25rem;   /* 4px */
  --space-8: 0.5rem;    /* 8px */
  --space-12: 0.75rem;  /* 12px */
  --space-16: 1rem;     /* 16px */
  --space-20: 1.25rem;  /* 20px */
  --space-24: 1.5rem;   /* 24px */
  --space-32: 2rem;     /* 32px */
  --space-40: 2.5rem;   /* 40px */
  --space-48: 3rem;     /* 48px */
  --space-56: 3.5rem;   /* 56px */
  --space-64: 4rem;     /* 64px */
  --space-80: 5rem;     /* 80px */
  --space-96: 6rem;     /* 96px */

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-pill: 999px;

  /* Shadows - subtle, studio-inspired depth */
  --shadow-sm: 0 4px 10px rgba(15, 23, 42, 0.4);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.55);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.75);

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0ms;
    --transition-base: 0ms;
    --transition-slow: 0ms;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* =========================================================
   Reset / Normalize
   ========================================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
}

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

img {
  height: auto;
}

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

button {
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
}

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

h1,
 h2,
 h3,
 h4,
 h5,
 h6,
 p,
 figure,
 blockquote,
 dl,
 dd {
  margin: 0;
}

/* Remove default focus outlines (handled via :focus-visible) */
:focus {
  outline: none;
}

/* =========================================================
   Base Styles
   ========================================================= */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  background-color: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
}

h1,
 h2,
 h3,
 h4,
 h5,
 h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-gray-50);
  line-height: var(--line-height-tight);
}

h1 {
  font-size: var(--font-size-4xl);
  letter-spacing: -0.04em;
  margin-bottom: var(--space-24);
}

h2 {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-20);
}

h3 {
  font-size: var(--font-size-2xl);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-16);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-12);
}

h5 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-8);
}

h6 {
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

p {
  margin-bottom: var(--space-16);
  color: var(--color-text);
}

p:last-child {
  margin-bottom: 0;
}

small {
  font-size: var(--font-size-sm);
}

strong {
  font-weight: 600;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  text-underline-offset: 0.2em;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-strong);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-24) 0;
}

/* =========================================================
   Accessibility Helpers
   ========================================================= */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.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;
}

.sr-only-focusable:focus,
.sr-only-focusable:focus-visible {
  position: static;
  width: auto;
  height: auto;
  padding: 0;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* =========================================================
   Layout Utilities
   ========================================================= */
.container {
  width: 100%;
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

@media (min-width: 1200px) {
  .container {
    max-width: 1200px;
  }
}

.section {
  padding-top: var(--space-64);
  padding-bottom: var(--space-64);
}

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

/* Flex helpers */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-16 {
  gap: var(--space-16);
}

.gap-24 {
  gap: var(--space-24);
}

.gap-32 {
  gap: var(--space-32);
}

/* Grid helpers */
.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-32);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-32);
}

@media (max-width: 900px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Spacing utilities (for quick custom layout tweaks) */
.mt-0 { margin-top: 0 !important; }
.mt-16 { margin-top: var(--space-16) !important; }
.mt-24 { margin-top: var(--space-24) !important; }
.mt-32 { margin-top: var(--space-32) !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-16 { margin-bottom: var(--space-16) !important; }
.mb-24 { margin-bottom: var(--space-24) !important; }
.mb-32 { margin-bottom: var(--space-32) !important; }
.pt-32 { padding-top: var(--space-32) !important; }
.pb-32 { padding-bottom: var(--space-32) !important; }

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

/* =========================================================
   Components
   ========================================================= */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));
  color: #ffffff !important;
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-primary-strong), var(--color-primary));
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

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

.btn--secondary:hover {
  border-color: var(--color-primary);
  background-color: rgba(15, 23, 42, 0.9);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text-muted);
}

.btn--ghost:hover {
  color: var(--color-text);
  background-color: rgba(17, 24, 39, 0.75);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
  transform: none;
}

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

/* Form Controls */
.form-group {
  margin-bottom: var(--space-16);
}

.label {
  display: block;
  margin-bottom: var(--space-8);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-100);
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(15, 23, 42, 0.85);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-text-muted);
}

.input:focus-visible,
.textarea:focus-visible,
.select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary-soft);
  background-color: rgba(15, 23, 42, 0.95);
}

.textarea {
  min-height: 140px;
  resize: vertical;
}

.input--error,
.textarea--error,
.select--error {
  border-color: var(--color-danger);
}

.helper-text {
  margin-top: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.helper-text--error {
  color: var(--color-danger);
}

/* Card - for services, testimonials, blog, FAQ items */
.card {
  background: radial-gradient(circle at top left, rgba(99, 102, 241, 0.18), transparent 55%),
              radial-gradient(circle at bottom right, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.98));
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  border: 1px solid rgba(55, 65, 81, 0.8);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}

.card--subtle {
  background: rgba(15, 23, 42, 0.95);
  border-color: var(--color-border-subtle);
  box-shadow: none;
}

.card__header {
  margin-bottom: var(--space-16);
}

.card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.card__meta {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-muted);
}

.card__body {
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

/* Tag / Badge - can be used for service types, blog categories */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background-color: rgba(31, 41, 55, 0.8);
  color: var(--color-text-muted);
}

.badge--primary {
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
}

/* Section headings - Polish site semantics (Usługi, O nas, Opinie, FAQ, Blog, Kontakt) */
.section-heading {
  margin-bottom: var(--space-24);
}

.section-heading__eyebrow {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  color: var(--color-primary);
  letter-spacing: 0.22em;
  margin-bottom: var(--space-8);
}

.section-heading__title {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-8);
}

.section-heading__description {
  max-width: 48rem;
  color: var(--color-text-muted);
}

/* Testimonials (Opinie klientów) */
.testimonial {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.testimonial__quote {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

.testimonial__author {
  font-weight: 600;
}

.testimonial__meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* FAQ (Często zadawane pytania) */
.faq-item {
  border-bottom: 1px solid var(--color-border-subtle);
  padding: var(--space-16) 0;
}

.faq-item:first-of-type {
  border-top: 1px solid var(--color-border-subtle);
}

.faq-item__question {
  font-weight: 500;
  font-size: var(--font-size-lg);
}

.faq-item__answer {
  margin-top: var(--space-8);
  color: var(--color-text-muted);
}

/* Blog teaser cards */
.blog-card__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.blog-card__title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-8);
}

.blog-card__excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Contact / Booking form wrapper */
.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: var(--space-32);
  align-items: flex-start;
}

@media (max-width: 900px) {
  .contact-panel {
    grid-template-columns: minmax(0, 1fr);
  }
}

.contact-panel__info {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.contact-panel__highlight {
  font-weight: 500;
  color: var(--color-gray-50);
}

/* Header & Nav baseline (can be extended per page) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 7, 11, 0.96), rgba(5, 7, 11, 0.85));
  border-bottom: 1px solid rgba(31, 41, 55, 0.85);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: var(--font-size-xs);
}

.site-logo__mark {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 0.9rem;
  background: conic-gradient(from 210deg, var(--color-primary), #14b8a6, #ec4899, var(--color-primary));
  padding: 1px;
}

.site-logo__inner {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background-color: rgba(5, 7, 11, 0.98);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 700;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-24);
  font-size: var(--font-size-sm);
}

.nav__link {
  color: var(--color-text-muted);
  position: relative;
  padding: 0.1rem 0;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 0;
  height: 1px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link[aria-current="page"] {
  color: var(--color-gray-50);
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after {
  width: 100%;
}

/* Footer baseline */
.site-footer {
  border-top: 1px solid var(--color-border-subtle);
  background-color: #020308;
  padding-top: var(--space-32);
  padding-bottom: var(--space-32);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  align-items: center;
}

.site-footer__meta span + span::before {
  content: "•";
  margin: 0 var(--space-8);
  color: var(--color-gray-600);
}

@media (max-width: 640px) {
  .site-header__inner {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  h1 {
    font-size: var(--font-size-3xl);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }

  .section {
    padding-top: var(--space-40);
    padding-bottom: var(--space-40);
  }
}

/* =========================================================
   Hero / Intro baseline (for home & O nas)
   ========================================================= */
.hero {
  padding-top: var(--space-80);
  padding-bottom: var(--space-64);
}

.hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: var(--space-40);
  align-items: center;
}

.hero__kicker {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  margin-bottom: var(--space-12);
}

.hero__title {
  font-size: var(--font-size-5xl);
  line-height: var(--line-height-tight);
  letter-spacing: -0.04em;
  margin-bottom: var(--space-16);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 36rem;
  margin-bottom: var(--space-24);
}

.hero__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.hero__visual {
  justify-self: stretch;
}

.hero__visual-frame {
  position: relative;
  border-radius: var(--radius-xl);
  padding: var(--space-24);
  background: radial-gradient(circle at top, rgba(99, 102, 241, 0.4), transparent 55%),
              radial-gradient(circle at bottom, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.98));
  border: 1px solid rgba(55, 65, 81, 0.9);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.hero__visual-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-12);
}

.hero__stat {
  padding: var(--space-12);
  border-radius: var(--radius-md);
  background-color: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(55, 65, 81, 0.8);
}

.hero__stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.hero__stat-value {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

@media (max-width: 900px) {
  .hero {
    padding-top: var(--space-64);
  }

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

  .hero__visual {
    order: -1;
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }
}

/* =========================================================
   Misc Utilities
   ========================================================= */

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.chip {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.highlight {
  color: var(--color-primary);
}

.muted {
  color: var(--color-text-muted);
}

.code-inline {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
  background-color: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--color-border-subtle);
}