/* ============================================================
   bemodi.de — Design Tokens & Theme System
   ============================================================ */

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

* {
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-padding-top: 5rem;
}

/* --- Dark Mode Tokens (default) ----------------------------- */
:root {
  /* Dark theme — Schieferblau (hue 240, chroma 0.015) */
  --bg: oklch(26% 0.015 240);
  --bg-alt: oklch(23% 0.015 240);
  --text-primary: oklch(95% 0.005 240);
  --text-secondary: oklch(70% 0.01 240);
  --text-tertiary: oklch(52% 0.02 240);
  --accent: oklch(68% 0.12 240);
  --accent-hover: oklch(75% 0.14 240);
  --accent-indigo: var(--accent);
  --accent-mint: var(--accent);
  --accent-mint-rgb: 110, 135, 210;
  --accent-indigo-rgb: 110, 135, 210;
  --surface: oklch(30% 0.015 240);
  --border: oklch(38% 0.02 240);
  --bg-footer: oklch(21% 0.015 240);
  --transition-speed: 150ms;

  /* Spacing scale (4pt base) */
  --space-xs: 0.25rem;   /* 4px */
  --space-sm: 0.5rem;    /* 8px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 3rem;     /* 48px */
  --space-3xl: 4rem;     /* 64px */
  --space-4xl: 5rem;     /* 80px */
}

/* --- Light Mode Tokens (explicit toggle) -------------------- */
[data-theme="light"] {
  /* Light theme — kühles Weiß (hue 240, chroma 0.005) */
  --bg: oklch(98% 0.005 240);
  --bg-alt: oklch(95% 0.005 240);
  --text-primary: oklch(18% 0.015 240);
  --text-secondary: oklch(40% 0.015 240);
  --text-tertiary: oklch(58% 0.01 240);
  --accent: oklch(45% 0.12 240);
  --accent-hover: oklch(38% 0.14 240);
  --accent-indigo: var(--accent);
  --accent-mint: var(--accent);
  --accent-mint-rgb: 55, 70, 140;
  --accent-indigo-rgb: 55, 70, 140;
  --surface: oklch(95.5% 0.005 240);
  --border: oklch(85% 0.01 240);
  --bg-footer: oklch(92% 0.005 240);
}

/* --- Light Mode Tokens (OS preference fallback) ------------- */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: oklch(98% 0.005 240);
    --bg-alt: oklch(95% 0.005 240);
    --text-primary: oklch(18% 0.015 240);
    --text-secondary: oklch(40% 0.015 240);
    --text-tertiary: oklch(58% 0.01 240);
    --accent: oklch(45% 0.12 240);
    --accent-hover: oklch(38% 0.14 240);
    --accent-indigo: var(--accent);
    --accent-mint: var(--accent);
    --accent-mint-rgb: 55, 70, 140;
    --accent-indigo-rgb: 55, 70, 140;
    --surface: oklch(95.5% 0.005 240);
    --border: oklch(85% 0.01 240);
    --bg-footer: oklch(92% 0.005 240);
  }
}

/* --- Reduced Motion ----------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-speed: 0ms;
  }
}

/* --- Base Body ---------------------------------------------- */
body {
  background: var(--bg);
  color: var(--text-primary);
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif,
    "Apple Color Emoji";
  font-kerning: normal;
  font-size: 1rem;
  line-height: 1.6;
  transition:
    background-color var(--transition-speed),
    color var(--transition-speed);
}

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

.headline {
  font-weight: 800;
  letter-spacing: -0.5px;
}

.body-text {
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.label {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.6875rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.label-indigo {
  color: var(--accent-indigo);
}

.label-mint {
  color: var(--accent-mint);
}

/* ============================================================
   Navigation
   ============================================================ */

/* Skip link — visually hidden, visible on focus */
.skip-link {
  position: absolute;
  top: -9999px;
  left: -9999px;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  overflow: hidden;
}

.skip-link:focus {
  top: 8px;
  left: 8px;
  clip: auto;
  clip-path: none;
  overflow: visible;
  white-space: normal;
  z-index: 9999;
  padding: 8px 16px;
  background: var(--bg);
  color: var(--text-primary);
  border: 2px solid var(--accent-indigo);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
}

/* Sticky header — glassmorphism */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(26% 0.015 240 / 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background-color var(--transition-speed);
}

[data-theme="light"] .site-header {
  background: oklch(98% 0.005 240 / 0.85);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .site-header {
    background: oklch(98% 0.005 240 / 0.85);
  }
}

/* Nav container */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-xl);
  max-width: 67.5rem;
  margin: 0 auto;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.125em;
  text-transform: uppercase;
  color: var(--text-primary);
  text-decoration: none;
}

/* Logo dot accent */
.nav-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent-mint);
  border-radius: 1px;
  flex-shrink: 0;
}

/* Nav links group */
.nav-links {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

/* Nav link items — 44px touch target via padding */
.nav-links a {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.75rem 0.5rem;
  transition: color var(--transition-speed);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text-primary);
}

/* Language switch */
.lang-switch {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  text-decoration: none;
  padding: 0.375rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 0.125rem;
  transition: color var(--transition-speed), border-color var(--transition-speed);
}

.lang-switch:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

/* Theme toggle button — 44px touch target */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0.75rem;
  font-size: 1rem;
  line-height: 1;
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-indigo);
  outline-offset: 2px;
}

/* ============================================================
   Hero Section
   ============================================================ */

/* Hero — subtle grid, gentle gradient */
.hero-wrap {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(oklch(45% 0.015 240 / 0.12) 1px, transparent 1px),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  background-size: 32px 32px, 100% 100%;
}

/* Fade out grid at edges */
.hero-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 40% 50%, transparent 25%, var(--bg) 75%);
  pointer-events: none;
  z-index: 0;
}

.hero {
  position: relative;
  z-index: 1;
  padding: var(--space-3xl) var(--space-xl);
  max-width: 67.5rem;
  margin: 0 auto;
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual svg {
  width: 100%;
  max-width: 100%;
}

/* Node hover tooltips */
.hero-node { cursor: pointer; }

.hero-node-target {
  transition: r var(--transition-speed);
}

.hero-node-tip {
  opacity: 0;
  transition: opacity var(--transition-speed);
  pointer-events: none;
}

.hero-node:hover .hero-node-tip {
  opacity: 1;
}

.hero-node:hover .hero-node-target {
  r: 24;
  fill: rgba(var(--accent-indigo-rgb), 0.04);
}

.hero-headline {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin: 0 0 var(--space-lg);
}

.hero-subtext {
  max-width: 38ch;
  margin: 0 0 var(--space-xl);
}

.hero-cta {
  display: inline-block;
  padding: 0.875rem 1.5rem;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 0.125rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: oklch(98% 0.005 240);
  text-decoration: none;
  transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.hero-cta:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

@media (max-width: 768px) {
  .hero-split {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .hero-visual svg {
    max-width: 280px;
  }
}

/* ============================================================
   Divider
   ============================================================ */

.divider {
  height: 1px;
  max-width: 63.5rem;
  margin: 0 auto;
  background: linear-gradient(90deg, var(--accent) 0%, var(--border) 100%);
}

/* ============================================================
   Section Base
   ============================================================ */

.section {
  padding: var(--space-2xl) var(--space-xl);
  max-width: 67.5rem;
  margin: 0 auto;
}

/* Alternating section backgrounds — full-width wrapper with centered content */
.section-bg {
  background: var(--bg-alt);
}

.section-bg > .section {
  max-width: 67.5rem;
}

.section-inner {
  max-width: 100%;
}

/* Two-column text section with visual element */
.section-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.section-split-text {
  max-width: 55ch;
}

.section-split-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 768px) {
  .section-split {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

.section-inner--wide {
  max-width: 100%;
}


.section-headline {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 0.75rem 0;
}

/* ============================================================
   Zwei Wege / Tracks Section
   ============================================================ */

.tracks-header {
  max-width: 50ch;
  margin-bottom: var(--space-lg);
}

.tracks-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
}

.track {
  background: var(--surface);
  padding: var(--space-xl);
}

.track-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: var(--space-sm) 0;
}

.track-intro {
  margin-bottom: var(--space-md);
}

.track-list {
  list-style: none;
  padding: 0;
  border-top: 1px solid var(--border);
  padding-top: var(--space-md);
}

.track-list li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
}

.track-list li::before {
  content: "→ ";
  color: var(--text-tertiary);
}

@media (max-width: 640px) {
  .tracks-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Solutions Grid
   ============================================================ */

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  margin-top: var(--space-xl);
}

.solution {
  background: var(--bg);
  padding: var(--space-lg);
  position: relative;
  transition: background-color var(--transition-speed);
}

.solution::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition-speed);
}

.solution:hover::before {
  opacity: 1;
}

.solution:hover {
  background: var(--surface);
}

.solution-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.solution-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.infra-list {
  list-style: none;
  padding: 0;
  margin-top: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.infra-list li {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  padding: var(--space-xs) 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.125rem;
}

@media (max-width: 768px) {
  .solutions-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Regulatory Experience Tags
   ============================================================ */

.reg-experience {
  width: 100%;
  max-width: 24rem;
}

.reg-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: var(--space-md);
}

.reg-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-indigo);
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.125rem;
  background: var(--surface);
  letter-spacing: 0.02em;
}

.reg-sectors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.reg-sector {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.125rem;
}

/* ============================================================
   About Values
   ============================================================ */

.about-values {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  width: 100%;
  max-width: 22rem;
}

.about-value {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg);
}

.about-value-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.about-value-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ============================================================
   Tech Stack — Terminal + Logo Grid
   ============================================================ */

.stack-section {
  border-top: 1px solid var(--border);
}

.stack-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.stack-left {
  display: flex;
  flex-direction: column;
}

/* Logo grid */
.logo-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: center;
  margin-top: var(--space-lg);
}

.tech-logo {
  width: 1.75rem;
  height: 1.75rem;
  opacity: 0.35;
  transition: opacity var(--transition-speed);
  filter: grayscale(1) brightness(2);
}

[data-theme="light"] .tech-logo,
:root:not([data-theme="dark"]) .tech-logo {
  filter: grayscale(1) brightness(0.5);
}

.tech-logo:hover {
  opacity: 0.8;
  filter: none;
}

@media (max-width: 768px) {
  .stack-layout {
    grid-template-columns: 1fr;
  }
}

.terminal {
  width: 100%;
  max-width: 28rem;
  border: 1px solid var(--border);
  border-radius: 0.125rem;
  overflow: hidden;
  background: var(--bg-alt);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.625rem 0.875rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--border);
  transition: background-color 0.3s ease;
}

.terminal:hover .terminal-dot:nth-child(1) { background: #ff5f57; }
.terminal:hover .terminal-dot:nth-child(2) { background: #febc2e; }
.terminal:hover .terminal-dot:nth-child(3) { background: #28c840; }

.terminal-title {
  margin-left: auto;
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.terminal-body {
  padding: 1rem 1.125rem;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.8125rem;
  line-height: 1.8;
}

.terminal-line {
  color: var(--text-primary);
}

.terminal-prompt {
  color: var(--accent);
  font-weight: 700;
  margin-right: 0.25rem;
}

.terminal-cmd {
  color: var(--text-primary);
  font-weight: 600;
}

.terminal-output {
  color: var(--text-secondary);
  padding-left: 1rem;
  margin-bottom: 0.5rem;
  font-size: 0.75rem;
}

.terminal-cursor {
  display: inline-block;
  width: 0.5rem;
  height: 1rem;
  background: var(--accent);
  animation: blink 1.2s step-end infinite;
  vertical-align: text-bottom;
}

@keyframes blink {
  50% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .terminal-cursor {
    animation: none;
  }
}

/* ============================================================
   Footer
   ============================================================ */

.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 67.5rem;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* CTA area */
.footer-cta {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border);
}

.footer-headline {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.footer-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-top: var(--space-md);
}

.footer-btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 0.125rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: oklch(98% 0.005 240);
  text-decoration: none;
  transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.footer-btn:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.footer-phone {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.footer-phone:hover {
  color: var(--text-primary);
}

/* Bottom bar */
.footer-bottom {
  padding: var(--space-lg) 0 var(--space-lg);
}

.footer-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
}

.footer-row .nav-logo {
  font-size: 0.75rem;
}

.footer-sep {
  color: var(--text-tertiary);
  margin: 0 0.5rem;
  font-size: 0.75rem;
}

.footer-address {
  font-style: normal;
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.footer-row a {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.footer-row a:hover {
  color: var(--text-primary);
}

.footer-made {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-left: auto;
}

.footer-made a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.footer-made a:hover {
  color: var(--text-primary);
}

.footer-heart {
  display: inline-block;
  width: 0.875rem;
  height: 0.875rem;
  vertical-align: -0.125rem;
}

@media (max-width: 640px) {
  .footer-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
  }
}

/* ============================================================
   Legal Pages (Impressum, Datenschutz)
   ============================================================ */

.legal-content h2 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--space-xl) 0 var(--space-sm);
}

.legal-content h2:first-of-type {
  margin-top: var(--space-lg);
}

.legal-content p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.legal-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-sm);
}

.legal-content ul li {
  font-size: 1rem;
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
}

.legal-content ul li::before {
  content: "— ";
  color: var(--text-tertiary);
}

.legal-content a {
  color: var(--accent-mint);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.legal-content a:hover {
  color: var(--text-primary);
}

.legal-content code {
  font-size: 0.875em;
  padding: 0.125em 0.375em;
  background: var(--surface);
  border-radius: 0.125rem;
}

/* ============================================================
   Cookie Info Banner
   ============================================================ */

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: var(--space-md) var(--space-xl);
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  max-width: 67.5rem;
  margin: 0 auto;
}

.cookie-banner p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.cookie-banner code {
  font-size: 0.875em;
  padding: 0.0625em 0.25em;
  background: var(--bg);
  border-radius: 0.125rem;
}

.cookie-banner a {
  color: var(--accent-mint);
  text-decoration: none;
}

.cookie-banner a:hover {
  color: var(--text-primary);
}

.cookie-banner-close {
  flex-shrink: 0;
  padding: 0.5rem 1rem;
  background: none;
  border: 1px solid var(--border);
  border-radius: 0.125rem;
  color: var(--text-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--transition-speed);
}

.cookie-banner-close:hover {
  border-color: var(--accent-mint);
}

@media (max-width: 640px) {
  .cookie-banner-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }
}