:root {
  /* ==========================
   * Variables
   * ========================== */

  /* Color palette - yoga studio (calm, natural, spacious) */
  --color-background: #f7f3ee; /* warm sand / off-white */
  --color-surface: #ffffff; /* cards, elevated surfaces */
  --color-surface-muted: #f0ebe5;

  --color-text: #2f3430; /* deep, soft charcoal */
  --color-text-muted: #6d726c;
  --color-text-soft: #8c918a;

  --color-primary: #8aa58b; /* sage green */
  --color-primary-soft: #cad7cc;
  --color-primary-deep: #6f8b72;

  --color-accent-lavender: #c0b4c8; /* muted lavender */
  --color-accent-wood: #b48a5a; /* natural wood tone */

  --color-success: #7ba57a;
  --color-warning: #d1a362;
  --color-danger: #c46b6b;

  /* Neutral grays */
  --color-gray-50: #faf7f3;
  --color-gray-100: #f0ebe5;
  --color-gray-200: #e0d9cf;
  --color-gray-300: #cfc7bc;
  --color-gray-400: #b9b0a4;
  --color-gray-500: #9b9184;
  --color-gray-600: #7a7166;
  --color-gray-700: #5d564d;
  --color-gray-800: #3f3a34;
  --color-gray-900: #25221e;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Cormorant Garamond", "Georgia", serif;
  --font-heading: var(--font-serif);
  --font-body: var(--font-sans);

  /* Base font sizes (clamp for responsiveness) */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  --line-height-tight: 1.15;
  --line-height-snug: 1.3;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;

  /* Spacing scale (0–96px) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Radii */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows - soft, diffused */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 6px 18px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.08);

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-normal: 220ms ease-out;
  --transition-slow: 320ms ease-out;

  /* Layout */
  --container-max-width: 1120px;
}

/* ==========================
 * Reset / Normalize
 * ========================== */

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

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  margin: 0;
}

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

ol,
ul {
  list-style: none;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  margin: 0;
}

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

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

textarea {
  resize: vertical;
}

:focus {
  outline: none;
}

/* ==========================
 * Base Styles
 * ========================== */

html {
  font-size: 100%;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
  color: var(--color-text);
  background-color: var(--color-background);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

/* Headings: calm, spacious hierarchy */

h1,
.h1 {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: clamp(2.25rem, 3vw, 3rem);
  line-height: var(--line-height-snug);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-4);
}

h2,
.h2 {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: clamp(1.75rem, 2.4vw, 2.25rem);
  line-height: var(--line-height-snug);
  letter-spacing: 0.015em;
  margin-bottom: var(--space-3);
}

h3,
.h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: clamp(1.5rem, 2vw, 1.875rem);
  line-height: var(--line-height-snug);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-2);
}

h4,
.h4 {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: 1.25rem;
  line-height: var(--line-height-snug);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-2);
}

h5,
.h5 {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1.125rem;
  line-height: var(--line-height-normal);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

h6,
.h6 {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.875rem;
  line-height: var(--line-height-normal);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

p + p {
  margin-top: -0.5rem;
}

small {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text-muted);
}

strong,
b {
  font-weight: 600;
}

/* Links */

a {
  color: var(--color-primary-deep);
  text-decoration: none;
  text-underline-offset: 0.18em;
  transition: color var(--transition-normal),
              text-decoration-color var(--transition-normal),
              opacity var(--transition-fast);
}

a:hover {
  color: var(--color-accent-wood);
}

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

/* Horizontal rule */

hr {
  border: none;
  border-top: 1px solid var(--color-gray-200);
  margin: var(--space-8) 0;
}

/* ==========================
 * Accessibility & Motion
 * ========================== */

:focus-visible {
  outline: 2px solid var(--color-accent-lavender);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

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

/* Layout container */

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

/* Flex helpers */

.flex {
  display: flex;
}

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

.flex-row {
  flex-direction: row;
}

.flex-column {
  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;
}

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

.gap-xs {
  gap: var(--space-2);
}

.gap-sm {
  gap: var(--space-3);
}

.gap-md {
  gap: var(--space-4);
}

.gap-lg {
  gap: var(--space-6);
}

/* Grid helpers */

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* Spacing utilities (margin / padding, selected for common use) */

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-4); }
.mt-md { margin-top: var(--space-6); }
.mt-lg { margin-top: var(--space-10); }

.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--space-2); }
.mb-sm { margin-bottom: var(--space-4); }
.mb-md { margin-bottom: var(--space-6); }
.mb-lg { margin-bottom: var(--space-10); }

.pt-sm { padding-top: var(--space-4); }
.pt-md { padding-top: var(--space-6); }
.pt-lg { padding-top: var(--space-10); }

.pb-sm { padding-bottom: var(--space-4); }
.pb-md { padding-bottom: var(--space-6); }
.pb-lg { padding-bottom: var(--space-10); }

/* Text alignment */

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

/* Visually hidden (screen reader only) */

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

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

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

/* Buttons - soft, rounded, calm transitions */

.button,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  --btn-bg: var(--color-primary);
  --btn-color: #ffffff;
  --btn-border: transparent;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: 999px;
  border: 1px solid var(--btn-border);
  background-color: var(--btn-bg);
  color: var(--btn-color)!important;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  line-height: 1;
  transition: background-color var(--transition-normal),
              color var(--transition-normal),
              box-shadow var(--transition-normal),
              transform var(--transition-fast),
              border-color var(--transition-normal);
}

.button--ghost {
  --btn-bg: transparent;
  --btn-color: var(--color-text);
  --btn-border: var(--color-gray-300);
}

.button--secondary {
  --btn-bg: var(--color-accent-lavender);
  --btn-color: #ffffff;
}

.button:hover,
button:hover,
input[type="button"]:hover,
input[type="submit"]:hover,
input[type="reset"]:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
  background-color: var(--color-primary-deep);
}

.button--ghost:hover {
  background-color: rgba(255, 255, 255, 0.7);
  border-color: var(--color-primary-soft);
}

.button--secondary:hover {
  background-color: #b2a3c0;
}

.button:focus-visible,
button:focus-visible,
input[type="button"]:focus-visible,
input[type="submit"]:focus-visible,
input[type="reset"]:focus-visible {
  outline: 2px solid var(--color-accent-lavender);
  outline-offset: 3px;
}

.button:disabled,
button:disabled,
input[type="button"]:disabled,
input[type="submit"]:disabled,
input[type="reset"]:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* Form inputs */

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="search"],
input[type="url"],
textarea,
select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  background-color: #ffffff;
  color: var(--color-text);
  font-size: var(--font-size-md);
  line-height: 1.4;
  transition: border-color var(--transition-normal),
              box-shadow var(--transition-normal),
              background-color var(--transition-normal);
}

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

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary-soft);
  outline: none;
}

input:disabled,
textarea:disabled,
select:disabled {
  background-color: var(--color-gray-50);
  color: var(--color-text-soft);
  cursor: not-allowed;
}

label {
  display: block;
  margin-bottom: var(--space-1);
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Card - for classes, sessions, offers */

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-xs);
  border: 1px solid rgba(0, 0, 0, 0.02);
  transition: box-shadow var(--transition-normal),
              transform var(--transition-normal),
              background-color var(--transition-normal);
}

.card--muted {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-muted) 100%);
}

.card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-1);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

.card-body {
  font-size: var(--font-size-md);
  color: var(--color-text);
}

.card-footer {
  margin-top: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

/* Simple tag / pill component for levels (np. "początkujący") */

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background-color: var(--color-primary-soft);
  color: var(--color-primary-deep);
}

.tag--soft {
  background-color: var(--color-gray-100);
  color: var(--color-text-muted);
}

/* Hero/section helper for spacious layout */

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section--soft {
  background: radial-gradient(circle at top left, #ffffff 0%, var(--color-background) 60%, var(--color-gray-50) 100%);
}

.section-header {
  margin-bottom: var(--space-10);
  text-align: left;
}

.section-eyebrow {
  font-size: var(--font-size-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.875rem, 2.6vw, 2.5rem);
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-3);
}

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

@media (max-width: 768px) {
  .section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }

  .section-header {
    text-align: left;
  }
}

/* ==========================
 * End base.css
 * ========================== */