/* =====================================================================
   Inhaltsverzeichnis (Refactoring-Layout)
   =====================================================================

   01) Design Tokens / Theme (CSS-Variablen)
   02) Base / Reset (Box-Sizing, HTML, Body, Links)
   03) Utilities (Container, muted, tiny)
   04) Layout: Page / Sections / Grid
   05) Components: Progress Bar (Scroll Indicator)
   06) Components: Topbar / Brand / Nav
   07) Components: Theme Toggle
   08) Components: Hero
   09) Components: Buttons
   10) Components: Cards
   11) Components: Steps (In-View Animation)
   12) Components: Contact
   13) Components: Footer + Footer Links
   14) Components: Fixed CTA (+ Show/Hide)
   15) Components: Popover Overlay (Impressum/Datenschutz)
   16) Helpers: Anchor Offset / Safe-Area Notes

   Hinweise:
   - Du hattest mehrfach definierte Selektoren (z.B. .popover__content, .popover__close, .cta).
     -> konsolidiert, damit “letzte Regel gewinnt” nicht heimlich Bugs erzeugt.
   - Bei .popover__close gab’s einmal position: fixed und später position: absolute.
     -> hier ist es sauber als absolute im Popover-Panel (typischer/robuster).
   - Theme-Variablen: dein :root verschachtelt nochmal :root[...] – das ist in purem CSS ungültig.
     -> hier korrekt als separate Blöcke gelöst.

   ===================================================================== */

/* =====================================================================
   01) Design Tokens / Theme (CSS-Variablen)
   ===================================================================== */

:root {
  --bg: #0b0d10;
  --panel: #0f1217;
  --panel-2: #0c0f14;

  --text: #eef2f6;
  --muted: rgba(238, 242, 246, 0.72);
  --muted-2: rgba(238, 242, 246, 0.55);

  --border: rgba(238, 242, 246, 0.1);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);

  --radius: 18px;
  --radius-sm: 14px;

  --container: 1080px;

  --accent: #031124;

  /* Hero Bild: austauschen */
  --hero-url: url("./friedrich-hkg.webp");
  --hero-h: 78vh;

  /* Fixed CTA */
  --cta-h: 52px;
}

/* Light Theme via data-attribute */
:root[data-theme="light"] {
  --bg: #f7f8fa;
  --panel: #fff;
  --panel-2: #f3f4f7;

    --accent: rgba(238, 242, 246, 0.92);

  --text: #181a1f;
  --muted: rgba(24, 26, 31, 0.65);
  --muted-2: rgba(24, 26, 31, 0.45);

  --border: rgba(24, 26, 31, 0.1);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

/* =====================================================================
   02) Base / Reset
   ===================================================================== */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Arial,
    "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--text);
  line-height: 1.45;
  background:
    radial-gradient(
      1200px 500px at 20% -10%,
      rgba(255, 255, 255, 0.08),
      transparent 60%
    ),
    radial-gradient(
      1000px 400px at 80% 0%,
      rgba(255, 255, 255, 0.05),
      transparent 55%
    ),
    var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

a.link {
  text-underline-offset: 3px;
}

a.link:hover {
  opacity: 0.9;
}

/* =====================================================================
   03) Utilities
   ===================================================================== */

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.muted {
  color: var(--muted);
}

.tiny {
  color: var(--muted-2);
  font-size: 0.92rem;
  margin: 0.6rem 0 0;
}

/* =====================================================================
   04) Layout: Page / Sections / Grid
   ===================================================================== */

.page {
  /* Platz für Fixed CTA + Safe-Area */
  padding-bottom: calc(var(--cta-h) + env(safe-area-inset-bottom) + 18px);
}

.section {
  padding: 48px 0;
}

.section--alt {
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.02),
    transparent 65%
  );
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__head {
  margin-bottom: 18px;
}

.section__head h2 {
  margin: 0 0 6px;
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  letter-spacing: -0.2px;
}

.section__head p {
  margin: 0;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 720px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}

@media (min-width: 1020px) {
  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* =====================================================================
   05) Component: Progress Bar (Scroll Indicator)
   ===================================================================== */

#progress-bar-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 4px;
  z-index: 9999;
  background: transparent;
  pointer-events: none;
}

#progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 0 2px 2px 0;
  background: linear-gradient(90deg, #ff3b3b 0%, #b80000 100%);
  transition: width 0.18s cubic-bezier(0.4, 2, 0.6, 1);
  box-shadow: 0 2px 8px rgba(30, 144, 255, 0.12);
}

/* =====================================================================
   06) Components: Topbar / Brand / Nav
   ===================================================================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  width: 100vw;
  background: var(--bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);

  /* Hinweis: "max-width: minmax(...)" ist kein gültiger Wert.
     Du meinst vermutlich: width/min() wie beim Container.
     Ich lasse es hier weg, weil topbar sowieso 100vw nutzt. */
  margin: 0 auto;
}

.topbar__inner {
  position: absolute;
  z-index: 5;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;

  width: calc(100vw - 16px);
  margin: 8px;
  margin-top: 0;

  padding: 8px;
  border-radius: 0 0 var(--radius) var(--radius);

  background-color: var(--bg);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand img {
  height: 60px;
}

/* Weiß-Filter für Darkmode */
:root[data-theme="dark"] .brand img {
  filter: brightness(0) invert(1);
}

.brand__logo {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid var(--border);

  background: rgba(255, 255, 255, 0.04);
  display: grid;
  place-items: center;
}

.brand__logo svg {
  width: 26px;
  height: 26px;
  color: rgba(238, 242, 246, 0.9);
}

.brand__logo rect {
  fill: rgba(255, 255, 255, 0.06);
  stroke: rgba(238, 242, 246, 0.18);
  stroke-width: 1.5;
}

.brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand__name {
  font-weight: 650;
  letter-spacing: 0.2px;
}

.brand__tagline {
  font-size: 0.9rem;
  color: var(--muted);
}

.nav {
  display: none;
  gap: 14px;
}

.nav a {
  font-size: 0.95rem;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 12px;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

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

/* =====================================================================
   07) Component: Theme Toggle
   ===================================================================== */

.theme-toggle {
  position: relative;
  z-index: 2;

  display: flex;
  align-items: center;
  justify-content: center;

  width: 40px;
  height: 40px;
  margin-left: 18px;
  padding: 0;

  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);

  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(6px);

  cursor: pointer;
  transition:
    background 0.18s,
    box-shadow 0.18s,
    color 0.18s,
    border 0.18s;
}

.theme-toggle:hover {
  background: var(--panel-2);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.13);
}

.theme-toggle:focus {
  outline: 2px solid var(--text);
  outline-offset: 2px;
  box-shadow:
    0 0 0 3px var(--panel-2),
    0 2px 8px rgba(0, 0, 0, 0.1);
}

.theme-toggle__icon {
  width: 24px;
  height: 24px;
  display: block;
  transition:
    transform 0.4s cubic-bezier(0.4, 2, 0.6, 1),
    color 0.2s;
}

.theme-toggle__icon.sun {
  color: #000;
  transform: rotate(0deg) scale(1);
  opacity: 1;
}

.theme-toggle__icon.moon {
  color: #7bb0ff;
  transform: rotate(-20deg) scale(1.08);
  opacity: 1;
}

.theme-toggle__icon.moon svg {
  fill: #7bb0ff;
}

.theme-toggle__icon.hide {
  opacity: 0;
  pointer-events: none;
  position: absolute;
}

/* =====================================================================
   08) Component: Hero
   ===================================================================== */

.hero {
  z-index: 1;
  position: relative;

  min-height: 100vh;
  width: 100vw;

  /* Full-bleed */
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;

  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: stretch;

  overflow: clip;
  border-bottom: 1px solid var(--border);
  background-position: top;
}

.hero__media {
  position: absolute;
  inset: 0;

  background-image: var(--hero-url);
  background-size: cover;
  background-position: 30% 30%;

  transform: translate3d(0, 0, 0) scale(1.06);
  will-change: transform;
}

.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      900px 420px at 30% 25%,
      rgba(0, 0, 0, 0.22),
      transparent 60%
    ),
    linear-gradient(to bottom, transparent, var(--bg) 75%, var(--bg) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;

  padding: 48px 0 64px;
  max-width: 700px;
  margin: 0 auto;

  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.95rem;
  letter-spacing: 0.2px;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  text-wrap: balance;
  line-height: 1.08;
  letter-spacing: -0.4px;
}

.lead {
  margin: 0 0 18px;
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 60ch;
}

/* =====================================================================
   09) Components: Buttons
   ===================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;

  padding: 12px 14px;
  border-radius: 14px;

  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);

  color: var(--text);
  font-weight: 620;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.07);
}

.btn--primary {
  background: rgba(238, 242, 246, 0.92);
  color: #0b0d10;
  border-color: rgba(238, 242, 246, 0.15);
}

.btn--primary:hover {
  filter: brightness(0.98);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.03);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

ul.trust {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 18px;
  padding: 0;
}

.trust__item {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  font-size: 0.625rem;
}

.trust__dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;

  background: rgba(238, 242, 246, 0.6);
  box-shadow: 0 0 0 3px rgba(238, 242, 246, 0.08);
}

/* =====================================================================
   10) Component: Cards
   ===================================================================== */

.card {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.card__icon {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: grid;
  place-items: center;

  color: var(--text);
  background: var(--accent);
  border: 1px solid rgba(238, 242, 246, 0.12);

  margin-bottom: 10px;
}

.card__icon svg {
  width: 22px;
  height: 22px;
  color: var(--muted);
}

.card h3 {
  margin: 0 0 6px;
  font-size: 1.08rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

/* =====================================================================
   11) Component: Steps (In-View Animation)
   ===================================================================== */

.steps {
  list-style: none;
  padding: 0;
  margin: 0;

  display: grid;
  gap: 12px;

  overflow: hidden;
}

.step {
  display: flex;
  gap: 12px;

  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  padding: 14px;

  opacity: 0;
  transform: translateX(60px);
  transition:
    opacity 0.7s cubic-bezier(0.4, 2, 0.6, 1),
    transform 0.7s cubic-bezier(0.4, 2, 0.6, 1);
  will-change: opacity, transform;
}

.step.step--inview {
  opacity: 1;
  transform: translateX(0);
}

.step__num {
  width: 36px;
  height: 36px;
  border-radius: 14px;

  display: grid;
  place-items: center;

  flex: 0 0 auto;
  background: rgba(238, 242, 246, 0.92);
  color: #0b0d10;
  font-weight: 750;
}

.step__body h3 {
  margin: 0 0 4px;
}

.step__body p {
  margin: 0;
  color: var(--muted);
}

/* =====================================================================
   12) Component: Contact
   ===================================================================== */

.contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 900px) {
  .contact {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.contact__card {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.contact__card--soft {
  background: rgba(255, 255, 255, 0.02);
}

.legal {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.dot {
  width: 5px;
  height: 5px;
  border-radius: 99px;
  background: rgba(238, 242, 246, 0.35);
}

/* =====================================================================
   13) Component: Footer + Footer Links
   ===================================================================== */

.footer {
  padding: 26px 0 14px;
  padding-bottom: 80px;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 12px;

  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.footer__links {
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0.75;
  flex-wrap: wrap;
}

.footer__links .link {
  font-size: 90%;
}

.footer__links a:hover {
  opacity: 1;
}

/* =====================================================================
   14) Component: Fixed CTA (+ Show/Hide)
   ===================================================================== */

/* CTA Container (fixed bar) */
.cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;

  max-width: 100vw;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));

  background: var(--bg);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);

  /* Show/Hide Animation */
  transition:
    transform 0.4s cubic-bezier(0.4, 2, 0.6, 1),
    opacity 0.3s;
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}

.cta--show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.cta__inner {
  width: min(100% - 0px, var(--container));
  margin: 0 auto;
  display: flex;
  gap: 10px;
}

.cta__btn {
  height: var(--cta-h);
  border-radius: 18px;
  border: 1px solid var(--border);

  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;

  font-weight: 600;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.22);

  position: relative;
  user-select: none;
}

.cta__btn:hover {
  background: rgba(255, 255, 255, 0.07);
}

.cta__btn--wa {
  background: rgba(238, 242, 246, 0.92);
  color: #0b0d10;
  border-color: rgba(238, 242, 246, 0.14);

  flex: 1 1 0%;
  width: 100%;
  min-width: 0;
}

:root[data-theme="light"] .cta__btn--wa {
  background: #25d366;
  color: #fff;
  border-color: #25d366;
}

.cta__btn--wa:hover {
  filter: brightness(0.985);
}

.cta__icon {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: left;
}

.cta__icon svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.cta__label {
  /* CTA Hint: Subtle helper text for the CTA area */
  font-size: 1rem;
  position: relative;
}

.cta__label_wa {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  position: relative;
}

.cta__hint {
  display: block;
  font-size: 0.5rem;
  opacity: 0.7;
  color: white;
  text-align: center;
  letter-spacing: 0.01em;
  user-select: none;

  position: absolute;
  left: 50%;
  bottom: 4px;
  padding-left: 32px;
  transform: translateX(-50%);
}

/* Deine Regel nutzt grid-template-columns, aber .cta__inner ist flex.
   Falls du wirklich Grid willst: display:grid setzen. Ich lasse es neutral. */
@media (min-width: 520px) {
  .cta__inner {
    /* grid-template-columns: 1fr 1fr; */
  }
}

.cta__btn--call {
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.cta__btn--call svg {
  width: 24px;
  height: 24px;
  display: block;
  margin: auto;
}

/* =====================================================================
   15) Component: Popover Overlay (Impressum/Datenschutz)
   ===================================================================== */

/* Backdrop (unter dem Panel) */
.popover::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;

  background: rgba(11, 13, 16, 0.55);
  backdrop-filter: blur(6px) saturate(1.1);

  transition: opacity 0.3s;
  opacity: 0;
  pointer-events: none;
}

/* Overlay Shell */
.popover {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;

  display: flex;
  align-items: flex-end;
  justify-content: center;

  min-height: 0;
  opacity: 0;
  pointer-events: none;

  background: rgba(11, 13, 16, 0.32);
  backdrop-filter: blur(2px);
  transition: opacity 0.3s;
}

.popover[hidden] {
  display: none;
}

/* Visible state */
.popover.show {
  opacity: 1;
  pointer-events: auto;
}

.popover.show::before {
  opacity: 1;
  pointer-events: auto;
}

/* Panel */
.popover__content {
  position: relative;

  height: 100vh;
  max-height: 100vh;

  overflow-y: auto;
  overscroll-behavior: contain;

  width: 100%;
  max-width: 420px;
  min-width: 0;

  margin: 0 0 env(safe-area-inset-bottom) 0;
  padding: 2.2rem 1.5rem 1.5rem;

  background: var(--panel);
  color: var(--text);
  border-radius: 22px 22px 0 0;
  box-shadow: 0 -8px 32px 0 rgba(0, 0, 0, 0.18);

  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.4, 2, 0.6, 1);
}

.popover.show .popover__content {
  transform: translateY(0);
}

/* Header (sticky im Scroll-Container) */
.popover__header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;

  display: block;
  background: var(--panel);
}

/* Close Button (im Panel) */
.popover__close {
  position: absolute;
  top: 16px;
  right: 18px;
  z-index: 20;

  background: none;
  border: none;
  color: var(--muted);

  font-size: 2rem;
  line-height: 1;
  padding: 0 4px;

  border-radius: 50%;
  cursor: pointer;
  transition:
    background 0.2s,
    color 0.2s;
}

.popover__close:hover,
.popover__close:focus {
  background: var(--panel-2);
  color: var(--text);
}

/* Focus sichtbar (A11y) */
.popover__close:focus {
  outline: 2.5px solid var(--text);
  outline-offset: 2px;
}

/* Typo im Popover */
.popover__content h2 {
  margin: 0;
  padding: 0;
  font-size: 1.25rem;
  font-weight: 700;
  background: none;
}

/* =====================================================================
   16) Helpers: Anchor Offset / Safe-Area Notes
   ===================================================================== */

/* Offset for anchor navigation (sticky header height) */
section[id] {
  scroll-margin-top: 80px;
}

/*
  Skip-Link (Barrierefreiheit):
  Ermöglicht das Überspringen der Navigation für Screenreader und Tastatur-Nutzer.
*/
.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 10000;
  background: var(--bg);
  color: var(--text);
  padding: 0.7em 1.2em;
  border-radius: 0 0 14px 0;
  font-weight: 600;
  font-size: 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transform: translateY(-120%);
  transition: transform 0.25s cubic-bezier(0.4,2,0.6,1), background 0.2s;
  outline: none;
  text-decoration: none;
}
.skip-link:focus,
.skip-link:active {
  transform: translateY(0);
  background: var(--highlight);
  color: var(--text);
  outline: 2.5px solid var(--accent);
  outline-offset: 2px;
}