/* ============================================================
   global.css — Shared styles for raum-planer-online.de
   Reset · Typography · Header · Footer · Layout · Buttons · Icons
   ============================================================ */

/* --- CSS Variables ----------------------------------------- */
:root {
  /* Palette — organic, calm, biophilic */
  --color-forest:      #2B4C1E;
  --color-forest-dark:  #1E3614;
  --color-sage:        #7A946A;
  --color-sage-light:  #A3B595;
  --color-sand:        #E6DACC;
  --color-sand-light:  #F2EDE6;
  --color-linen:       #FAF7F2;
  --color-cream:       #FFFDF8;
  --color-bark:        #5C4A36;
  --color-charcoal:    #2A2A2A;
  --color-muted:       #6B6B6B;
  --color-border:      #DDD5C9;
  --color-white:       #FFFFFF;
  --color-cta:         #3A7D1E;
  --color-cta-hover:   #2E6517;

  /* Typography */
  --font-heading: 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, serif;
  --font-body:    'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-xxl: 6rem;

  /* Layout */
  --max-width:  800px;
  --max-wide:   1080px;
  --nav-height: 64px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-forest);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul, ol {
  list-style: none;
}

/* --- Typography -------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-forest-dark);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.15rem);
  margin-bottom: var(--space-sm);
}

h3 {
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  margin-bottom: var(--space-xs);
}

h4 {
  font-size: 1.05rem;
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
  color: var(--color-sage);
}

p {
  margin-bottom: var(--space-sm);
}

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

strong {
  font-weight: 600;
}

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

.container--wide {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* --- SVG Icon Base ----------------------------------------- */
.icon {
  display: inline-block;
  width: 1.25em;
  height: 1.25em;
  vertical-align: -0.15em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.icon--filled {
  fill: currentColor;
  stroke: none;
}

.icon--lg {
  width: 2.5rem;
  height: 2.5rem;
}

.icon--xl {
  width: 3.5rem;
  height: 3.5rem;
}

/* --- Buttons ----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.85rem 1.75rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  text-decoration: none;
  line-height: 1;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background-color: var(--color-cta);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(58, 125, 30, 0.25);
}

.btn--primary:hover {
  background-color: var(--color-cta-hover);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(58, 125, 30, 0.3);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-forest);
  border: 2px solid var(--color-forest);
}

.btn--outline:hover {
  background-color: var(--color-forest);
  color: var(--color-white);
}

.btn .icon {
  width: 1rem;
  height: 1rem;
  transition: transform 0.2s ease;
}

.btn:hover .icon {
  transform: translateX(3px);
}

/* --- Header / Navigation ----------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--color-border);
  height: var(--nav-height);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: var(--nav-height);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-forest-dark);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.logo-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.logo:hover {
  color: var(--color-forest);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-charcoal);
  padding: 0.25rem 0;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-cta);
  transition: width 0.25s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a:hover {
  color: var(--color-forest);
}

.nav-cta {
  background-color: var(--color-cta);
  color: var(--color-white) !important;
  padding: 0.5rem 1.15rem !important;
  border-radius: 5px;
  font-weight: 600 !important;
  transition: background-color 0.2s ease;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background-color: var(--color-cta-hover);
  color: var(--color-white) !important;
}

/* Mobile menu toggle */
.nav-toggle-checkbox {
  display: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-charcoal);
}

.nav-toggle-label svg {
  display: block;
}

@media (max-width: 768px) {
  .nav-toggle-label {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-cream);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm) var(--space-md);
    gap: 0;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links li:last-child a {
    border-bottom: none;
    display: inline-block;
    margin-top: var(--space-xs);
  }

  .nav-toggle-checkbox:checked ~ .nav-links {
    display: flex;
  }
}

/* --- FAQ / Accordion (details/summary) --------------------- */
details {
  border-bottom: 1px solid var(--color-border);
}

details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-forest-dark);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

details summary .icon-chevron {
  transition: transform 0.3s ease;
  color: var(--color-sage);
  flex-shrink: 0;
}

details[open] summary .icon-chevron {
  transform: rotate(180deg);
}

details .faq-body {
  padding: 0 0 var(--space-md) 0;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 90%;
}

/* --- Table Base -------------------------------------------- */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

thead th {
  background-color: var(--color-forest-dark);
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: left;
  padding: 0.85rem 1rem;
  position: sticky;
  top: 0;
}

tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

tbody tr:nth-child(even) {
  background-color: var(--color-sand-light);
}

tbody tr:last-child td {
  border-bottom: none;
}

/* --- Footer ------------------------------------------------ */
.site-footer {
  background-color: var(--color-forest-dark);
  color: var(--color-sage-light);
  padding: var(--space-xl) 0 var(--space-lg);
  margin-top: var(--space-xxl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-lg);
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.footer-col h4 {
  color: var(--color-sand);
  margin-bottom: var(--space-sm);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-col a {
  color: var(--color-sage-light);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--color-white);
}

.footer-bottom {
  max-width: var(--max-wide);
  margin: var(--space-lg) auto 0;
  padding: var(--space-md) var(--space-md) 0;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  text-align: center;
}