/* ============================================================
   global.css — Shared styles for raum-planer-online.de pages
   Dark theme inspired by smsactivate.biz
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --color-bg-primary: #0b0f1a;
  --color-bg-secondary: #111827;
  --color-bg-card: #1a2236;
  --color-bg-card-hover: #212d45;
  --color-bg-accent: #162032;
  --color-border: #253350;
  --color-border-light: #1e2d48;
  --color-text-primary: #e8ecf4;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-accent: #3b82f6;
  --color-accent-hover: #60a5fa;
  --color-accent-glow: rgba(59, 130, 246, 0.15);
  --color-accent-secondary: #06b6d4;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-white: #ffffff;
  --font-display: 'DM Sans', 'Segoe UI', sans-serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 800px;
  --max-width-wide: 1100px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 2px 16px rgba(0,0,0,0.28);
  --shadow-glow: 0 0 32px rgba(59,130,246,0.10);
  --transition-fast: 0.18s ease;
  --transition-base: 0.3s ease;
}

/* --- Reset / Normalize --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent-hover); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-text-primary);
  line-height: 1.25;
  font-weight: 700;
}
h1 { font-size: 2.6rem; letter-spacing: -0.02em; }
h2 { font-size: 1.85rem; letter-spacing: -0.015em; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1rem; color: var(--color-text-secondary); }

@media (max-width: 768px) {
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.4rem; }
  h3 { font-size: 1.1rem; }
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.container--wide {
  max-width: var(--max-width-wide);
}
.section-padding {
  padding: 5rem 0;
}
@media (max-width: 768px) {
  .section-padding { padding: 3rem 0; }
}

/* --- SVG Icon Base --- */
.icon {
  display: inline-block;
  width: 1.25em;
  height: 1.25em;
  vertical-align: middle;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.icon--sm { width: 1em; height: 1em; }
.icon--lg { width: 1.5em; height: 1.5em; }
.icon--xl { width: 2em; height: 2em; }
.icon--filled { fill: currentColor; stroke: none; }

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(11, 15, 26, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base);
}
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-white);
  text-decoration: none;
}
.logo:hover { color: var(--color-white); }
.logo svg { width: 28px; height: 28px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.nav-links li a {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}
.nav-links li a:hover { color: var(--color-white); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.25rem;
  background: var(--color-accent);
  color: var(--color-white) !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.88rem;
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}
.nav-cta:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-glow);
}

/* Mobile nav toggle */
.nav-toggle-checkbox { display: none; }
.nav-toggle-label { display: none; cursor: pointer; color: var(--color-text-secondary); }
.nav-toggle-label:hover { color: var(--color-white); }

@media (max-width: 768px) {
  .nav-toggle-label { display: flex; align-items: center; }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem 1.25rem;
    gap: 1rem;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }
  .nav-toggle-checkbox:checked ~ .nav-links {
    transform: translateY(0);
    opacity: 1;
  }
}

/* --- CTA Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-white);
  box-shadow: 0 4px 24px rgba(59,130,246,0.3);
}
.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}
.btn--outline:hover {
  background: var(--color-accent-glow);
  color: var(--color-accent-hover);
}
.btn--lg {
  padding: 1rem 2.5rem;
  font-size: 1.05rem;
}

/* --- Table Base --- */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
thead th {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  font-weight: 600;
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 2px solid var(--color-border);
  white-space: nowrap;
  position: sticky;
  top: 0;
}
tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
tbody tr:nth-child(even) { background: rgba(26, 34, 54, 0.4); }
tbody tr:hover { background: var(--color-bg-card-hover); }

/* --- FAQ / Accordion --- */
details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}
details[open] { border-color: var(--color-accent); }
details + details { margin-top: 0.75rem; }
summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-primary);
  cursor: pointer;
  background: var(--color-bg-card);
  transition: background var(--transition-fast);
  list-style: none;
}
summary::-webkit-details-marker { display: none; }
summary::marker { display: none; }
summary:hover { background: var(--color-bg-card-hover); }
summary .icon-chevron {
  transition: transform var(--transition-fast);
  color: var(--color-text-muted);
  flex-shrink: 0;
}
details[open] summary .icon-chevron { transform: rotate(180deg); }
details .faq-body {
  padding: 0 1.25rem 1.25rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  background: var(--color-bg-card);
}

/* --- Footer --- */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 1.25rem;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}
.footer-col h4 {
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer-col ul li { margin-bottom: 0.4rem; }
.footer-col ul li a {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-top: 0.5rem;
}
.footer-bottom {
  max-width: var(--max-width-wide);
  margin: 2rem auto 0;
  padding: 1.25rem 1.25rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}
.footer-bottom p {
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

/* --- Image Placeholder Utility --- */
.img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-accent);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  text-align: center;
  padding: 1rem;
  min-height: 200px;
  position: relative;
  overflow: hidden;
}
.img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.04) 0%, transparent 60%);
}