/* =========================================================
   Variables
   ========================================================= */
:root {
  /* Colors */
  --color-bg: #f5f7f3;
  --color-bg-elevated: #ffffff;
  --color-text: #1f3024;
  --color-muted: #66776a;
  --color-primary: #2f8f4e;
  --color-primary-soft: #e1f1e7;
  --color-success: #2f8f4e;
  --color-warning: #d88b19;
  --color-danger: #c53d3d;

  --color-border-subtle: #dde5d7;
  --color-border-strong: #b7c5b4;

  --gray-50: #f7f9f6;
  --gray-100: #e8eee5;
  --gray-200: #d6dfd0;
  --gray-300: #c4cebf;
  --gray-400: #9ca894;
  --gray-500: #7b8674;
  --gray-600: #5e6757;
  --gray-700: #454d3f;
  --gray-800: #30362a;
  --gray-900: #191d15;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Georgia", "Times New Roman", serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-md: 1.0625rem; /* 17px */
  --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 */

  --line-height-tight: 1.2;
  --line-height-snug: 1.35;
  --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-7: 1.75rem;  /* 28px */
  --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 */

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  /* Shadows (soft, natural) */
  --shadow-xs: 0 1px 2px rgba(10, 24, 15, 0.06);
  --shadow-sm: 0 2px 6px rgba(10, 24, 15, 0.08);
  --shadow-md: 0 6px 18px rgba(10, 24, 15, 0.12);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-base: 180ms ease-out;
  --transition-slow: 240ms ease-out;

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

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }

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

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

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

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

body {
  min-height: 100vh;
}

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

img {
  height: auto;
}

picture {
  display: block;
}

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

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

ul,
ol {
  margin: 0;
  padding: 0;
}

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

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

legend {
  padding: 0;
}

textarea {
  resize: vertical;
}

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

table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* =========================================================
   Base Styles
   ========================================================= */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background: radial-gradient(circle at top left, #edf5e7 0, transparent 46%),
              radial-gradient(circle at bottom right, #e6f0e2 0, transparent 40%),
              var(--color-bg);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-4);
}

h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-3);
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-2);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

h5 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-1);
}

h6 {
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  margin-bottom: var(--space-1);
}

p {
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

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

strong {
  font-weight: 600;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base),
              text-decoration-color var(--transition-base),
              background-color var(--transition-base);
}

a:hover {
  color: #236a3b;
}

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

code,
pre {
  font-family: var(--font-mono);
  font-size: 0.95em;
}

pre {
  padding: var(--space-3);
  background-color: var(--gray-50);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

hr {
  border: 0;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-6) 0;
}

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

:focus:not(:focus-visible) {
  outline: none;
}

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

/* =========================================================
   Utilities
   ========================================================= */
/* Layout container for main content sections */
.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;
}

.justify-start {
  justify-content: flex-start;
}

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

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

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

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

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

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

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

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

/* Simple grid helpers for article lists, cards, comparison tables */
.grid {
  display: grid;
}

.grid-2-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.grid-3-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

@media (max-width: 768px) {
  .grid-2-cols,
  .grid-3-cols {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Spacing utilities (selected core ones) */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-6 { margin-bottom: var(--space-6); }
.pt-4 { padding-top: var(--space-4); }
.pb-4 { padding-bottom: var(--space-4); }
.pt-6 { padding-top: var(--space-6); }
.pb-6 { padding-bottom: var(--space-6); }

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

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

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

/* =========================================================
   Components
   ========================================================= */
/* Buttons (e.g. CTA for guides, newsletter, contact form) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  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-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: #256e3d;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-xs);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-border-strong);
  background-image: linear-gradient(135deg, rgba(47, 143, 78, 0.08), transparent);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

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

.btn-ghost:hover {
  background-color: var(--color-primary-soft);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

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

/* Form elements: inputs, textareas, selects */
.input,
.textarea,
.select {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: #ffffff;
  color: var(--color-text);
  font-size: var(--font-size-base);
  line-height: 1.4;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base),
              background-color var(--transition-base);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--gray-400);
}

.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);
}

.input[disabled],
.textarea[disabled],
.select[disabled] {
  background-color: var(--gray-50);
  cursor: not-allowed;
  color: var(--gray-500);
}

label {
  display: inline-block;
  margin-bottom: var(--space-1);
  font-weight: 500;
}

.form-help {
  margin-top: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

.form-error {
  margin-top: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--color-danger);
}

/* Card component: for featured articles, guides, FAQ blocks */
.card {
  position: relative;
  padding: var(--space-4);
  background-color: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(161, 186, 156, 0.35);
  box-shadow: var(--shadow-xs);
}

.card:hover {
  box-shadow: var(--shadow-sm);
}

.card-header {
  margin-bottom: var(--space-2);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-1);
}

.card-meta {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

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

/* Tag / badge for categories like rośliny domowe, choroby roślin */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background-color: var(--gray-50);
  color: var(--gray-700);
}

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

.badge-warning {
  background-color: #fff4e2;
  color: var(--color-warning);
}

.badge-danger {
  background-color: #ffe6e6;
  color: var(--color-danger);
}

/* Simple section wrapper for major homepage blocks */
.section {
  padding-top: var(--space-10);
  padding-bottom: var(--space-10);
}

.section-header {
  margin-bottom: var(--space-6);
}

.section-title {
  font-size: var(--font-size-3xl);
}

.section-subtitle {
  margin-top: var(--space-2);
  max-width: 42rem;
  color: var(--color-muted);
}

/* Tables (for comparison tables, nawożenie/podlewanie guides) */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.table th,
.table td {
  padding: 0.75rem 0.75rem;
  border-bottom: 1px solid var(--color-border-subtle);
  text-align: left;
}

.table thead th {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-600);
  background-color: var(--gray-50);
}

.table-striped tbody tr:nth-child(odd) {
  background-color: #fafcf7;
}

/* FAQ summary styles (when using details/summary) */
details {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: #ffffff;
  padding: var(--space-3) var(--space-4);
}

details + details {
  margin-top: var(--space-3);
}

summary {
  cursor: pointer;
  font-weight: 500;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "";
  display: inline-block;
  margin-left: var(--space-2);
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--gray-600);
  border-bottom: 2px solid var(--gray-600);
  transform: rotate(45deg);
  transition: transform var(--transition-base);
}

details[open] summary::after {
  transform: rotate(-135deg) translateY(2px);
}

details > *:not(summary) {
  margin-top: var(--space-2);
  color: var(--gray-700);
}

/* Alert messages (e.g. pest warnings, seasonal notes) */
.alert {
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  border: 1px solid transparent;
}

.alert-success {
  background-color: #e7f6eb;
  border-color: #c3e6cd;
  color: #215739;
}

.alert-warning {
  background-color: #fff7e6;
  border-color: #ffe2b4;
  color: #7a5112;
}

.alert-danger {
  background-color: #ffe9e9;
  border-color: #f3c1c1;
  color: #7c2626;
}

/* Breadcrumbs (for structured navigation) */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

.breadcrumb a {
  color: var(--color-primary);
}

.breadcrumb-separator {
  color: var(--gray-400);
}