@import "fonts.css";
@import "animations.css";

/* ============================================================
   Design System — Entrümpelung NRW
   Salbeigrün + Terracotta · 85/10/5 Farbverhältnis
   ============================================================ */

/* Base — Neutral (h:210 s:15%) */
:root {
  --color-base-950: hsl(210 15% 6%);
  --color-base-900: hsl(210 14% 11%);
  --color-base-800: hsl(210 12% 18%);
  --color-base-700: hsl(210 10% 28%);
  --color-base-600: hsl(210 8% 40%);
  --color-base-500: hsl(210 7% 52%);
  --color-base-400: hsl(210 6% 64%);
  --color-base-300: hsl(210 8% 76%);
  --color-base-200: hsl(210 12% 88%);
  --color-base-100: hsl(210 16% 94%);
  --color-base-50:  hsl(210 20% 97.5%);

  /* Primary — Salbeigrün (h:155 s:35%) */
  --color-primary-900: hsl(155 40% 12%);
  --color-primary-800: hsl(155 38% 18%);
  --color-primary-700: hsl(155 36% 26%);
  --color-primary-600: hsl(155 34% 34%);
  --color-primary-500: hsl(155 32% 42%);
  --color-primary-400: hsl(155 30% 52%);
  --color-primary-300: hsl(155 28% 66%);
  --color-primary-200: hsl(155 30% 82%);
  --color-primary-100: hsl(155 35% 92%);
  --color-primary-50:  hsl(155 40% 96%);

  /* Accent — Terracotta (h:24 s:65%) */
  --color-accent-800: hsl(24 68% 30%);
  --color-accent-700: hsl(24 66% 38%);
  --color-accent-600: hsl(24 65% 46%);
  --color-accent-500: hsl(24 65% 52%);
  --color-accent-400: hsl(24 65% 62%);
  --color-accent-300: hsl(24 60% 74%);
  --color-accent-200: hsl(24 58% 86%);
  --color-accent-100: hsl(24 60% 93%);
  --color-accent-50:  hsl(24 70% 97%);

  /* Fluid Typography */
  --font-size-xs:   clamp(0.75rem,  0.7rem  + 0.15vw, 0.8125rem);
  --font-size-sm:   clamp(0.8125rem,0.775rem + 0.2vw, 0.875rem);
  --font-size-base: clamp(0.9375rem,0.875rem + 0.3vw, 1.0625rem);
  --font-size-lg:   clamp(1.125rem, 1rem    + 0.5vw, 1.3125rem);
  --font-size-xl:   clamp(1.3125rem,1.1rem  + 0.75vw,1.625rem);
  --font-size-2xl:  clamp(1.625rem, 1.3rem  + 1vw,   2.125rem);
  --font-size-3xl:  clamp(2rem,     1.55rem + 1.5vw, 2.75rem);
  --font-size-4xl:  clamp(2.5rem,   1.85rem + 2vw,   3.5rem);
  --font-size-hero: clamp(2rem,     1.5rem  + 2vw,   3.5rem);

  /* Spacing — 8px grid */
  --spacing-1:  0.5rem;
  --spacing-2:  1rem;
  --spacing-3:  1.5rem;
  --spacing-4:  2rem;
  --spacing-5:  2.5rem;
  --spacing-6:  3rem;
  --spacing-8:  4rem;
  --spacing-10: 5rem;
  --spacing-12: 6rem;
  --spacing-16: 8rem;

  /* Easing */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-apple:  cubic-bezier(0.25, 0.1, 0.25, 1);

  /* Semantic */
  --container-max: min(1200px, 90vw);
  --text-max: 65ch;
  --color-surface:    #fafcfa;
  --color-surface-2:  var(--color-base-50);
  --color-text:       var(--color-base-900);
  --color-text-muted: var(--color-base-500);
  --color-border:     var(--color-base-200);
  --font-heading: "Inter Variable", "Inter", system-ui, -apple-system, sans-serif;
  --font-body:    "Inter Variable", "Inter", system-ui, -apple-system, sans-serif;

  /* Glassmorphism */
  --glass-bg: hsl(0 0% 100% / 0.7);
  --glass-border: hsl(0 0% 100% / 0.3);
  --glass-blur: blur(20px) saturate(1.8);
}

/* ==============================================================
   Base Reset
   ============================================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-surface);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }

/* ==============================================================
   Typography
   ============================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

h1 { font-size: var(--font-size-4xl); letter-spacing: -0.03em; }
h2 { font-size: var(--font-size-3xl); letter-spacing: -0.03em; }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); font-weight: 600; }

p { margin-block: 0.75em; }
p:first-child { margin-block-start: 0; }
p:last-child { margin-block-end: 0; }

/* ==============================================================
   Links
   ============================================================== */

a {
  color: var(--color-primary-600);
  text-decoration: none;
  transition: color 0.2s var(--ease-out);
}
a:hover { color: var(--color-primary-500); }
a:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ==============================================================
   Layout
   ============================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
@media (min-width: 640px) {
  .container { padding-inline: 2rem; }
}

.prose { max-width: var(--text-max); }

.section {
  padding-block: var(--spacing-12);
}
.section--sm {
  padding-block: var(--spacing-6);
}

/* ==============================================================
   Buttons
   ============================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.3s var(--ease-out), background-color 0.2s var(--ease-out);
}
.btn:hover { transform: scale(1.02); }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--color-base-900);
  color: #fff;
  box-shadow: 0 2px 8px hsl(210 15% 6% / 0.15);
}
.btn-primary:hover {
  background: var(--color-base-800);
  color: #fff;
  box-shadow: 0 4px 16px hsl(210 15% 6% / 0.2);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-primary-700);
  border: 1.5px solid var(--color-primary-200);
}
.btn-secondary:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  border-color: var(--color-primary-300);
}

.btn-accent {
  background: var(--color-primary-600);
  color: #fff;
  box-shadow: 0 2px 8px hsl(155 34% 34% / 0.3);
}
.btn-accent:hover {
  background: var(--color-primary-700);
  color: #fff;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--font-size-base);
}

/* ==============================================================
   Cards
   ============================================================== */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 32px -8px hsl(210 15% 20% / 0.12);
}
.card a { color: inherit; }
.card a:hover { color: inherit; }

/* ==============================================================
   Gradient Mesh Backgrounds
   ============================================================== */

.gradient-mesh {
  background:
    radial-gradient(ellipse 600px 600px at 85% 20%, hsl(155 35% 92% / 0.5), transparent),
    radial-gradient(ellipse 400px 400px at 10% 80%, hsl(24 60% 93% / 0.35), transparent),
    radial-gradient(ellipse 800px 400px at 50% 0%, hsl(155 30% 96% / 0.4), transparent),
    var(--color-surface);
}

.gradient-mesh-dark {
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, hsl(155 40% 12% / 0.8), transparent),
    radial-gradient(ellipse 60% 80% at 80% 70%, hsl(24 68% 30% / 0.3), transparent),
    radial-gradient(ellipse 90% 50% at 50% 0%, hsl(155 38% 18% / 0.5), transparent),
    var(--color-primary-900);
  color: #fff;
}

/* Noise Overlay */
.noise::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.03;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* Glassmorphism */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}

/* ==============================================================
   Selection
   ============================================================== */

::selection {
  background: var(--color-primary-200);
  color: var(--color-primary-900);
}

/* ==============================================================
   Prose (Markdown content)
   ============================================================== */

.prose-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-size: var(--font-size-2xl);
}
.prose-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-size: var(--font-size-xl);
}
.prose-content p {
  margin-bottom: 1rem;
  line-height: 1.75;
}
.prose-content ul, .prose-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}
.prose-content li {
  margin-bottom: 0.5rem;
  line-height: 1.65;
}
.prose-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: var(--font-size-sm);
}
.prose-content th, .prose-content td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.prose-content th {
  font-weight: 600;
  background: var(--color-base-50);
}
.prose-content strong { font-weight: 600; }
.prose-content blockquote {
  border-left: 3px solid var(--color-primary-300);
  padding-left: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

/* ==============================================================
   Utility
   ============================================================== */

.section-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary-600);
  margin-bottom: 0.75rem;
}

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

.text-balance { text-wrap: balance; }
.text-muted { color: var(--color-text-muted); }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-center { text-align: center; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }
.gap-6 { gap: 3rem; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mt-6 { margin-top: 3rem; }
.mt-8 { margin-top: 4rem; }
.mb-2 { margin-top: 1rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3rem; }
.mb-8 { margin-bottom: 4rem; }
.py-4 { padding-block: 2rem; }
.py-6 { padding-block: 3rem; }
.py-8 { padding-block: 4rem; }
.py-10 { padding-block: 5rem; }
.px-4 { padding-inline: 2rem; }

.rounded { border-radius: 0.5rem; }
.rounded-lg { border-radius: 0.75rem; }
.rounded-xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

.shadow { box-shadow: 0 1px 3px hsl(210 15% 20% / 0.08); }
.shadow-md { box-shadow: 0 4px 12px hsl(210 15% 20% / 0.1); }
.shadow-lg { box-shadow: 0 8px 24px hsl(210 15% 20% / 0.12); }

.relative { position: relative; }
.overflow-hidden { overflow: hidden; }
.w-full { width: 100%; }
.max-w-prose { max-width: var(--text-max); }

/* ==============================================================
   Scroll Progress Bar (Ratgeber pages)
   ============================================================== */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 100;
}
.scroll-progress__bar {
  height: 100%;
  background: var(--color-primary-500);
  width: 0%;
  transition: width 0.1s linear;
}

@supports (animation-timeline: scroll()) {
  .scroll-progress__bar {
    animation: scroll-progress linear;
    animation-timeline: scroll();
    transition: none;
  }
  @keyframes scroll-progress {
    from { width: 0%; }
    to { width: 100%; }
  }
}