/* CSS Custom Properties */
:root {
  /* Colors */
  --color-sage: #9dbf9e;
  --color-sage-light: #c5d9c6;
  --color-sage-dark: #7a9c7b;
  --color-cream: #fdfbf7;
  --color-cream-dark: #f0eee9;
  --color-charcoal: #333333;
  --color-charcoal-light: #555555;
  --color-white: #ffffff;
  --color-error: #e06c75;
  --color-warning: #e5c07b;
  --color-success: #98c379;
  --color-unknown: #abb2bf;
  --color-focus: #ff9900;

  /* Typography */
  --font-family-base: ui-rounded, "Hiragino Maru Gothic ProN", Quicksand, Comfortaa, Manjari, "Arial Rounded MT Bold", Calibri, source-sans-pro, sans-serif;

  /* Layout */
  --max-width: 1200px;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Animation */
  --transition-speed: 0.3s;
}

/* Dark Mode Overrides */
@media (prefers-color-scheme: dark) {
  :root {
    --color-cream: #1a1a1a;
    --color-cream-dark: #2a2a2a;
    --color-charcoal: #fdfbf7;
    --color-charcoal-light: #cccccc;
    --color-white: #222222;
    --color-sage: #7a9c7b;
    --color-sage-light: #5a7c5b;
    --color-sage-dark: #9dbf9e;
  }
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--color-cream);
  color: var(--color-charcoal);
  line-height: 1.6;
  font-size: 18px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Accessible Focus Styles */
:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}
:focus:not(:focus-visible) {
  outline: none;
}
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-charcoal);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

h2 {
  font-size: 2rem;
  margin-top: var(--spacing-xl);
  border-bottom: 3px solid var(--color-sage);
  display: inline-block;
  padding-bottom: var(--spacing-sm);
}

h3 {
  font-size: 1.5rem;
  margin-top: var(--spacing-lg);
}

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-sage-dark);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

a:hover {
  color: var(--color-charcoal);
  text-decoration-color: var(--color-charcoal);
}

@media (prefers-color-scheme: dark) {
    a {
        color: var(--color-sage-dark);
    }
    a:hover {
        color: var(--color-sage-light);
        text-decoration-color: var(--color-sage-light);
    }
}


/* Button */
.button {
  display: inline-block;
  background-color: var(--color-sage-dark);
  color: var(--color-white);
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color var(--transition-speed) ease;
}
.button:hover {
  background-color: var(--color-charcoal);
  color: var(--color-white);
  text-decoration: none;
}

/* Utilities */
.styled-list {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}
.styled-list li {
  margin-bottom: var(--spacing-sm);
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

/* Header */
.site-header {
  margin-bottom: var(--spacing-lg);
}
.header-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}
@media (min-width: 768px) {
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
  }
}
.logo {
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-sage-dark);
}
.nav-links {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

main {
  min-height: 70vh;
}

footer {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-top: 1px solid var(--color-sage-light);
  text-align: center;
  font-size: 0.9rem;
}

footer a {
  margin: 0 var(--spacing-sm);
}

/* UI Elements */
.card {
  background-color: var(--color-white);
  border-radius: 12px;
  padding: var(--spacing-lg);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  margin-bottom: var(--spacing-lg);
  border: 1px solid var(--color-cream-dark);
}

.content-card {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-xl) 0;
}
.hero-content {
  max-width: 800px;
  margin: 0 auto;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}
.hero p {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-lg);
}

.label-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 600px) {
  .label-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.label-card h3 {
    margin-top: var(--spacing-sm);
}
.limitation {
    margin-top: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--color-charcoal-light);
    padding-top: var(--spacing-sm);
    border-top: 1px dashed var(--color-cream-dark);
}

.badge {
  display: inline-block;
  background-color: var(--color-sage);
  color: var(--color-white);
  padding: 0.2rem 0.6rem;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}
@media (prefers-color-scheme: dark) {
    .badge {
        color: var(--color-charcoal);
    }
}

/* Checker Layout */
.checker-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 900px) {
  .checker-layout {
    grid-template-columns: 3fr 2fr;
    align-items: start;
  }
}

/* Checklist Styles */
.checklist {
  list-style: none;
}

.checklist-item {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--color-white);
  border-radius: 8px;
  border: 2px solid transparent;
  transition: border-color var(--transition-speed) ease;
}

.checklist-item:hover {
  border-color: var(--color-sage-light);
}

.radio-group {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
  flex-wrap: wrap;
}
.radio-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.95rem;
  background-color: var(--color-cream);
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  border: 1px solid var(--color-cream-dark);
  transition: background-color 0.2s, border-color 0.2s;
}
.radio-group label:has(input:checked) {
  border-color: var(--color-sage);
  background-color: rgba(157, 191, 158, 0.1);
}

.checklist-text h4 {
  margin-bottom: 0.2rem;
  font-size: 1.1rem;
}

.checklist-text p {
  margin-bottom: 0;
  font-size: 0.9rem;
  color: var(--color-charcoal-light);
}

/* Dial Animation */
.dial-container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.dial-svg {
  max-width: 250px;
  width: 100%;
}

.dial-bg {
  fill: none;
  stroke: var(--color-cream-dark);
  stroke-width: 12;
  stroke-linecap: round;
}

.dial-progress {
  fill: none;
  stroke: var(--color-sage);
  stroke-width: 12;
  stroke-linecap: round;
  stroke-dasharray: 283; /* 2 * pi * r (45) */
  stroke-dashoffset: 283;
  transition: stroke-dashoffset 0.8s cubic-bezier(0.34, 1.56, 0.64, 1), stroke 0.8s ease;
}

.dial-text {
  fill: var(--color-charcoal);
  font-size: 24px;
  font-weight: 700;
  text-anchor: middle;
  dominant-baseline: central;
}

.verdict-title {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

#dial-message {
    text-align: center;
    font-weight: 500;
}

/* Dynamic Tips */
.dynamic-tips {
    margin-top: var(--spacing-md);
    width: 100%;
}
.tip-item {
    background-color: rgba(229, 192, 123, 0.15);
    border-left: 4px solid var(--color-warning);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    border-radius: 0 4px 4px 0;
}

/* FAQ */
.faq-section details {
    margin-bottom: var(--spacing-md);
}
.faq-section summary {
    font-weight: bold;
    cursor: pointer;
    padding-bottom: var(--spacing-sm);
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}