/* ==========================================================================
   82. Deutscher Segelfliegertag – 2026 Hagen
   Design: Luftfahrt-Sichtkarte ("Sectional Chart") als Leitmotiv.
   Tageslicht = Kartenpapier + Chart-Blau. Nacht = Nachtkarte mit Bernstein-
   Konturlinien (Cockpit-Nachtbeleuchtung).
   ========================================================================== */

/* ---- Tokens: Light (default) -------------------------------------------- */
:root {
  --paper: #ece6d6;
  --paper-raised: #f6f2e7;
  --paper-sunk: #e2dac6;
  --ink: #1b2430;
  --ink-muted: #59637a;
  --accent: #1e5c86;
  --accent-strong: #123f5c;
  --accent-2: #9c3b49;
  --line: #8c6a45;
  --line-soft: rgba(140, 106, 69, 0.28);
  --focus-ring: #1e5c86;
  --flip-bg: #1b2430;
  --flip-fg: #f6f2e7;

  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Public Sans", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  --container: 72rem;
  color-scheme: light;
}

/* ---- Tokens: Dark via OS preference (only when no explicit stamp) ------- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #10171f;
    --paper-raised: #172230;
    --paper-sunk: #0b1119;
    --ink: #ece5d3;
    --ink-muted: #97a2b4;
    --accent: #6bb0dd;
    --accent-strong: #9bcdef;
    --accent-2: #e3818c;
    --line: #c79b5d;
    --line-soft: rgba(199, 155, 93, 0.28);
    --focus-ring: #6bb0dd;
    --flip-bg: #05090d;
    --flip-fg: #c79b5d;
    color-scheme: dark;
  }
}

/* ---- Tokens: Dark via explicit toggle ------------------------------------ */
:root[data-theme="dark"] {
  --paper: #10171f;
  --paper-raised: #172230;
  --paper-sunk: #0b1119;
  --ink: #ece5d3;
  --ink-muted: #97a2b4;
  --accent: #6bb0dd;
  --accent-strong: #9bcdef;
  --accent-2: #e3818c;
  --line: #c79b5d;
  --line-soft: rgba(199, 155, 93, 0.28);
  --focus-ring: #6bb0dd;
  --flip-bg: #05090d;
  --flip-fg: #c79b5d;
  color-scheme: dark;
}

/* ---- Reset / base --------------------------------------------------------- */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

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

a {
  color: inherit;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  margin: 0;
  text-wrap: balance;
  letter-spacing: 0.01em;
}

p {
  margin: 0;
  max-width: 65ch;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

@media (min-width: 768px) {
  .container {
    padding-inline: 2.5rem;
  }
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.tabular {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---- Ruler / contour-line divider (recurring aviation-chart motif) ------- */
.ruler {
  height: 7px;
  background-image: repeating-linear-gradient(
    to right,
    var(--line) 0,
    var(--line) 1px,
    transparent 1px,
    transparent 14px
  );
  background-position: bottom left;
  background-repeat: repeat-x;
  background-size: auto 100%;
  border-bottom: 1px solid var(--line-soft);
  opacity: 0.8;
}

.ruler-v {
  width: 7px;
  background-image: repeating-linear-gradient(
    to bottom,
    var(--line) 0,
    var(--line) 1px,
    transparent 1px,
    transparent 14px
  );
  border-right: 1px solid var(--line-soft);
  opacity: 0.85;
}

/* ---- Top navigation: fixed, chart-legend styled --------------------------- */
.nav-shell {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px) saturate(1.1);
  -webkit-backdrop-filter: blur(10px) saturate(1.1);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow 0.2s ease, background-color 0.25s ease;
}

.nav-shell.is-scrolled {
  box-shadow: 0 8px 24px -18px rgba(0, 0, 0, 0.5);
}

.nav-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 0.7rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (min-width: 768px) {
  .nav-inner {
    padding: 0.85rem 2.5rem;
  }
}

.nav-brand {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-display);
}

.nav-brand-line1 {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.nav-brand-line2 {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 0.15rem;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
}

@media (min-width: 860px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-muted);
  padding-bottom: 0.35rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-link:hover {
  color: var(--ink);
}

body[data-page="start"] .nav-link[data-nav="start"],
body[data-page="location"] .nav-link[data-nav="location"],
body[data-page="aussteller"] .nav-link[data-nav="aussteller"],
body[data-page="programm"] .nav-link[data-nav="programm"] {
  color: var(--accent);
  border-color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle {
  width: 2.25rem;
  height: 2.25rem;
  display: inline-grid;
  place-items: center;
  border-radius: 3px;
  border: 1px solid var(--line-soft);
  background: var(--paper-raised);
  color: var(--ink);
  cursor: pointer;
}

.theme-toggle svg {
  width: 1rem;
  height: 1rem;
}

.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: none; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: block; }
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  background: var(--paper-raised);
  cursor: pointer;
  padding: 0 6px;
}

@media (min-width: 860px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  max-height: 0;
  overflow: hidden;
  border-top: 1px solid transparent;
  transition: max-height 0.25s ease;
}

.nav-mobile.is-open {
  max-height: 20rem;
  border-top: 1px solid var(--line-soft);
}

@media (min-width: 860px) {
  .nav-mobile {
    display: none;
  }
}

.nav-mobile-inner {
  padding: 0.5rem 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-mobile-link {
  font-family: var(--font-display);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink-muted);
  padding: 0.6rem 0.25rem;
  border-bottom: 1px solid var(--line-soft);
}

body[data-page="start"] .nav-mobile-link[data-nav="start"],
body[data-page="location"] .nav-mobile-link[data-nav="location"],
body[data-page="aussteller"] .nav-mobile-link[data-nav="aussteller"],
body[data-page="programm"] .nav-mobile-link[data-nav="programm"] {
  color: var(--accent);
}

/* ---- Page shell: offset for fixed nav ------------------------------------ */
main {
  padding-top: 4rem;
}

@media (min-width: 768px) {
  main {
    padding-top: 4.5rem;
  }
}

/* ---- Buttons --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.7rem 1.4rem;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

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

.btn-primary {
  background: var(--accent);
  color: var(--paper-raised);
}

.btn-primary:hover {
  background: var(--accent-strong);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

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

/* ---- Hero ------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--paper-raised) 0%, var(--paper) 78%);
}

.hero-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 6.5rem 1.5rem 7rem;
  position: relative;
  z-index: 2;
}

@media (min-width: 768px) {
  .hero-inner {
    padding: 8.5rem 2.5rem 10rem;
  }
}

.hero h1 {
  font-size: clamp(2.6rem, 6.5vw, 5rem);
  margin-top: 0.75rem;
}

.hero .subtitle {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-top: 0.75rem;
  text-transform: uppercase;
}

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

.countdown {
  margin-top: 1.5rem;
}

.countdown-visual {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.7rem 1rem;
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  padding: 0.65rem 1rem;
}

.countdown-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--ink-muted);
}

.countdown-digits {
  display: flex;
  align-items: flex-end;
  gap: 0.55rem;
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
}

.countdown-unit-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.countdown-colon {
  align-self: center;
  margin-bottom: 1.1rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--line);
}

/* ---- Split-flap digit (airport departure board) ----------------------- */
.flip-group {
  display: flex;
  gap: 3px;
}

.flip-digit {
  position: relative;
  display: inline-block;
  width: 1.05rem;
  height: 1.6rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--flip-fg);
  perspective: 220px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  border-radius: 2px;
}

.flip-digit::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: rgba(0, 0, 0, 0.4);
  z-index: 3;
  pointer-events: none;
}

.flip-digit-layer {
  position: absolute;
  left: 0;
  right: 0;
  height: 50%;
  overflow: hidden;
  background: var(--flip-bg);
}

.flip-digit-layer span,
.flip-digit-flap span {
  position: absolute;
  left: 0;
  right: 0;
  height: 1.6rem;
  line-height: 1.6rem;
  text-align: center;
}

.flip-digit-top {
  top: 0;
  border-radius: 2px 2px 0 0;
}

.flip-digit-top span {
  top: 0;
}

.flip-digit-bottom {
  bottom: 0;
  border-radius: 0 0 2px 2px;
}

.flip-digit-bottom span {
  bottom: 0;
}

.flip-digit-flap {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 50%;
  overflow: hidden;
  background: var(--flip-bg);
  border-radius: 2px 2px 0 0;
  transform-origin: bottom;
  transform: rotateX(0deg);
  backface-visibility: hidden;
  z-index: 2;
}

.flip-digit-flap.is-flipping {
  transition: transform 0.32s cubic-bezier(0.45, 0, 0.55, 1);
  transform: rotateX(-90deg);
}

@media (prefers-reduced-motion: reduce) {
  .flip-digit-flap.is-flipping {
    transition: none;
  }
}

.hero-lede {
  margin-top: 1.75rem;
  font-size: 1.15rem;
  color: var(--ink-muted);
}

/* Skyline silhouette (stylised Hagen horizon: Sauerland hills behind a
   small-town roofline) sitting on the glide-path line. Simple shapes only. */
.skyline {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: clamp(90px, 16vw, 180px);
  z-index: 1;
  color: var(--line);
  opacity: 0.55;
}

.glidepath {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: clamp(90px, 16vw, 180px);
  z-index: 1;
  pointer-events: none;
}

.glidepath path {
  stroke: var(--accent-2);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 6 8;
  opacity: 0.7;
}

/* ---- Sections ---------------------------------------------------------------- */
.section {
  padding-block: 4.5rem;
}

@media (min-width: 768px) {
  .section {
    padding-block: 6rem;
  }
}

.section-head {
  max-width: 42rem;
  margin-bottom: 3rem;
}

.section-head h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-top: 0.5rem;
}

.section-head p {
  margin-top: 1rem;
  color: var(--ink-muted);
  font-size: 1.05rem;
}

.section-alt {
  background: var(--paper-sunk);
}

/* ---- Teaser cards (Start page) ------------------------------------------------ */
.teaser-card {
  background: var(--paper-raised);
  border: 1px solid var(--line-soft);
  padding: 1.75rem;
  border-radius: 3px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.teaser-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.teaser-card svg {
  width: 1.75rem;
  height: 1.75rem;
  color: var(--accent);
}

.teaser-card h3 {
  font-size: 1.4rem;
}

.teaser-card p {
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.teaser-card .go {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---- Stat row (big feature counters) -------------------------------------------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

@media (min-width: 640px) {
  .stat-row {
    gap: 5rem;
  }
}

.stat-feature {
  border-left: 1px solid var(--line-soft);
  padding-left: 1.5rem;
}

.stat-feature .num {
  font-family: var(--font-mono);
  font-size: clamp(4rem, 12vw, 8rem);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.stat-feature .label {
  color: var(--ink-muted);
  font-size: 1.05rem;
  margin-top: 0.75rem;
}

/* ---- Page header (non-Start pages) --------------------------------------------- */
.page-header {
  background: var(--paper-raised);
  border-bottom: 1px solid var(--line-soft);
}

.page-header-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 4.5rem 1.5rem 3rem;
}

@media (min-width: 768px) {
  .page-header-inner {
    padding: 6rem 2.5rem 3.5rem;
  }
}

.page-header h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin-top: 0.6rem;
}

.page-header p {
  margin-top: 1.1rem;
  color: var(--ink-muted);
  font-size: 1.1rem;
}

/* ---- Location page -------------------------------------------------------------- */
.info-card {
  background: var(--paper-raised);
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  padding: 1.75rem;
}

.info-card h3 {
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.info-card h3 svg {
  width: 1.15rem;
  height: 1.15rem;
  color: var(--accent);
}

.info-card p, .info-card ul {
  margin-top: 0.8rem;
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.info-card ul {
  padding-left: 1.1rem;
}

.info-card li + li {
  margin-top: 0.35rem;
}

.timeline {
  position: relative;
  margin-top: 3rem;
}

.timeline-day {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line-soft);
}

.timeline-day:not(:first-child) {
  margin-top: 3.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 4.5rem 1px 1fr;
  gap: 0 1.25rem;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

@media (min-width: 640px) {
  .timeline-item {
    grid-template-columns: 6rem 1px 1fr;
    gap: 0 1.75rem;
  }
}

.timeline-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-item + .timeline-item {
  margin-top: 1.75rem;
}

.timeline-day + .timeline-item {
  margin-top: 1.75rem;
}

.timeline-time {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  padding-top: 0.2rem;
  text-align: right;
}

@media (min-width: 640px) {
  .timeline-time {
    font-size: 1.15rem;
  }
}

.timeline-rail {
  position: relative;
  background: var(--line-soft);
}

.timeline-rail::before {
  content: "";
  position: absolute;
  top: 0.35rem;
  left: 50%;
  width: 9px;
  height: 9px;
  background: var(--paper);
  border: 2px solid var(--accent);
  border-radius: 50%;
  transform: translateX(-50%);
}

.timeline-card {
  display: block;
  width: 100%;
  margin: 0;
  font: inherit;
  text-align: left;
  color: inherit;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background: var(--paper-raised);
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  padding: 1.25rem 1.5rem;
  padding-bottom: 1.5rem;
  margin-bottom: 0.25rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.timeline-card:hover,
.timeline-card:focus-visible {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--line-soft);
  color: var(--ink-muted);
  border-radius: 2px;
}

.tag.tag-vortrag { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, var(--line-soft)); }
.tag.tag-workshop { color: var(--accent-2); border-color: color-mix(in srgb, var(--accent-2) 45%, var(--line-soft)); }
.tag.tag-podium { color: var(--line); border-color: var(--line-soft); }

.timeline-card h3 {
  font-size: 1.3rem;
  margin-top: 0.6rem;
}

.timeline-card .meta {
  margin-top: 0.5rem;
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.timeline-card .meta span + span::before {
  content: "·";
  margin: 0 0.4rem;
}

/* ---- Aussteller grid --------------------------------------------------------------- */
.exhibitor-group + .exhibitor-group {
  margin-top: 3.5rem;
}

.exhibitor-group h3 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

.exhibitor-tile {
  background: var(--paper-raised);
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.exhibitor-tile:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.exhibitor-mark {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--paper-sunk);
  border: 1.5px dashed var(--line);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--accent);
}

.exhibitor-name {
  font-size: 0.88rem;
  color: var(--ink);
  line-height: 1.3;
}

.exhibitor-cat {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.cta-panel {
  margin-top: 4rem;
  background: var(--paper-sunk);
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  padding: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

/* ---- Detail sheet (Programm) ------------------------------------------------------ */
.sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 20, 0.55);
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: 200;
}

.sheet-overlay.is-open {
  opacity: 1;
}

.sheet {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(28rem, 100vw);
  background: var(--paper-raised);
  border-left: 1px solid var(--line-soft);
  box-shadow: -24px 0 48px -24px rgba(0, 0, 0, 0.45);
  z-index: 201;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  padding: 1.5rem;
}

.sheet::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 7px;
  background-image: repeating-linear-gradient(
    to right,
    var(--line) 0,
    var(--line) 1px,
    transparent 1px,
    transparent 14px
  );
  border-bottom: 1px solid var(--line-soft);
  opacity: 0.8;
}

.sheet.is-open {
  transform: translateX(0);
}

.sheet-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.25rem;
  height: 2.25rem;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

.sheet-close svg {
  width: 1rem;
  height: 1rem;
}

.sheet-body {
  margin-top: 3.5rem;
}

.sheet-time {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--accent);
}

.sheet-body h3 {
  margin-top: 0.5rem;
  font-size: clamp(1.6rem, 4vw, 2rem);
}

.sheet-meta {
  margin-top: 0.9rem;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.sheet-meta span + span::before {
  content: "·";
  margin: 0 0.4rem;
}

.sheet-desc {
  margin-top: 1.5rem;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.7;
  max-width: none;
}

.sheet-desc:empty {
  display: none;
}

body.sheet-lock {
  overflow: hidden;
}

@media (max-width: 480px) {
  .sheet {
    width: 100vw;
    border-left: none;
  }
}

/* ---- Footer -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line-soft);
  background: var(--paper-raised);
  padding-block: 3rem;
}

.footer-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .footer-inner {
    padding-inline: 2.5rem;
  }
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.footer-brand .subtitle {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 0.3rem;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.75rem;
}

.footer-col a {
  display: block;
  text-decoration: none;
  color: var(--ink);
  font-size: 0.92rem;
  padding: 0.2rem 0;
}

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

.footer-bottom {
  max-width: var(--container);
  margin: 2rem auto 0;
  padding-inline: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
}

.footer-bottom a {
  color: var(--ink-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-bottom a:hover {
  color: var(--accent);
}

@media (min-width: 768px) {
  .footer-bottom {
    padding-inline: 2.5rem;
  }
}