/* ========================================================================
   Variables
   ======================================================================== */
:root {
  /* Color Palette - nature inspired */
  --color-bg: #f6f7f4; /* soft garden mist */
  --color-surface: #ffffff;
  --color-text: #1e2520; /* deep natural charcoal */
  --color-text-muted: #6c7569;

  --color-primary: #2f7d32; /* lush garden green */
  --color-primary-soft: #e2f3e3;
  --color-primary-strong: #226024;

  --color-success: #3c9a4a; /* healthy plants */
  --color-warning: #e6a93c; /* warm sunlight */
  --color-danger: #c65337; /* earthy terracotta red */

  --color-border-subtle: #dde3d9;
  --color-border-strong: #b7c3b3;

  /* Neutral grays (with a slight natural warmth) */
  --gray-50: #f7f8f5;
  --gray-100: #eef0ea;
  --gray-200: #dde3d9;
  --gray-300: #c8d0c4;
  --gray-400: #b0b9ac;
  --gray-500: #8b9587;
  --gray-600: #6c7569;
  --gray-700: #535b51;
  --gray-800: #3a4239;
  --gray-900: #262d25;

  /* Accent earthy browns */
  --color-earth: #7c5a3c;
  --color-earth-soft: #f3e9de;

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

  /* Font sizes (fluid-ish scale for modern, airy feel) */
  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-md: 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 heights */
  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* 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-pill: 999px;

  /* Shadows - soft, natural */
  --shadow-xs: 0 1px 2px rgba(15, 23, 15, 0.04);
  --shadow-sm: 0 1px 3px rgba(15, 23, 15, 0.06), 0 1px 2px rgba(15, 23, 15, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 15, 0.08);
  --shadow-lg: 0 10px 30px rgba(15, 23, 15, 0.12);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 200ms ease-out;
  --transition-slow: 320ms ease-out;
}

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

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

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

body {
  min-height: 100vh;
}

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

img {
  height: auto;
}

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

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

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

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

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

/* Remove default link underlines (handled in Base styles) */
a {
  color: inherit;
  text-decoration: none;
}

/* ========================================================================
   Base
   ======================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
  background-color: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

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

h1 {
  font-size: clamp(2.25rem, 2.5vw + 1.5rem, 3rem);
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(1.875rem, 2vw + 1.25rem, 2.25rem);
  margin-bottom: var(--space-3);
}

h3 {
  font-size: clamp(1.5rem, 1.5vw + 1rem, 1.875rem);
  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-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: var(--space-1);
}

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

strong {
  font-weight: 600;
}

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

a {
  color: var(--color-primary-strong);
  text-decoration: none;
  transition: color var(--transition-normal);
}

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

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

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

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

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

/* Layout helpers */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  max-width: 1200px;
}

@media (min-width: 1440px) {
  .container {
    max-width: 1320px;
  }
}

.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;
}

.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: minmax(0, 1fr);
  }
}

/* Spacing utilities (minimal set for layout) */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mt-6 { margin-top: var(--space-6) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }
.pt-4 { padding-top: var(--space-4) !important; }
.pb-4 { padding-bottom: var(--space-4) !important; }
.pt-6 { padding-top: var(--space-6) !important; }
.pb-6 { padding-bottom: var(--space-6) !important; }

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

/* 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;
}

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

/* Buttons */
.button,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background-color: var(--color-primary);
  color: #ffffff!important;
  font-weight: 500;
  font-size: var(--font-size-sm);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1;
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal),
    transform var(--transition-fast);
}

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

.button:active,
button:active,
input[type="button"]:active,
input[type="submit"]:active,
input[type="reset"]:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.button--ghost {
  background-color: transparent;
  color: var(--color-primary-strong)!important;
  border-color: var(--color-border-subtle);
}

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

.button--secondary {
  background-color: #ffffff;
  color: var(--color-text)!important;
  border-color: var(--color-border-subtle);
}

.button--secondary:hover {
  background-color: #ffffff;
  border-color: var(--color-primary);
  color: var(--color-primary-strong)!important;
}

.button:disabled,
button:disabled,
input[type="button"]:disabled,
input[type="submit"]:disabled,
input[type="reset"]:disabled {
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
  transform: none;
}

.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-primary);
  outline-offset: 2px;
}

/* Form controls */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="tel"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: #ffffff;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  transition:
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    background-color var(--transition-normal);
}

input::placeholder,
textarea::placeholder {
  color: var(--gray-500);
}

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);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

input[disabled],
textarea[disabled],
select[disabled] {
  background-color: var(--gray-100);
  cursor: not-allowed;
}

label {
  display: inline-block;
  margin-bottom: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--gray-800);
}

/* Card */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
  border: 1px solid rgba(183, 195, 179, 0.5);
}

.card--soft {
  background: linear-gradient(135deg, #ffffff 0%, #f5f7f3 100%);
}

.card-header {
  margin-bottom: var(--space-3);
}

.card-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-3);
}

.card-footer {
  margin-top: var(--space-4);
}

/* Focus-visible for interactive elements */
:where(a, button, input, textarea, select, summary, [tabindex]:not([tabindex="-1"])):focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

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

/* High contrast for important alerts */
[role="alert"],
.alert {
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: var(--font-size-sm);
}

.alert--success {
  background-color: #e7f6eb;
  border: 1px solid #c2e5ce;
  color: var(--color-success);
}

.alert--warning {
  background-color: #fff5e4;
  border: 1px solid #ffe1b3;
  color: var(--color-warning);
}

.alert--danger {
  background-color: #fde7e1;
  border: 1px solid #f7c4b6;
  color: var(--color-danger);
}