/* ==========================================================
   Pentonic – Stylesheet
   Dunkel = Standard (Streichholz brennt), Hell = Streichholz aus
   ========================================================== */

:root {
  --bg: #2f2d2e;
  --fg: #f1ece6;
  --muted: #a8a19d;
  --accent: #ff8a1f;
  --line: rgba(255, 255, 255, 0.16);
  --veil: rgba(47, 45, 46, 0.35);

  /* Position der Flamme im Hintergrundbild (in % der Fenstergröße).
     Bei Bedarf anpassen, damit das Leuchten genau auf der Flamme sitzt. */
  --flame-x: 50%;
  --flame-y: 38%;

  --font: "Helvetica Neue", Helvetica, "Segoe UI", Arial, sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

:root[data-theme="light"] {
  --bg: #f3efea;
  --fg: #2f2d2e;
  --muted: #6b6562;
  --accent: #e05a00;
  --line: rgba(47, 45, 46, 0.2);
  --veil: rgba(243, 239, 234, 0.25);
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  transition: background-color 0.6s var(--ease), color 0.6s var(--ease);
  -webkit-font-smoothing: antialiased;
}

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

::selection {
  background: var(--accent);
  color: #fff;
}

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

/* ---------- Hintergrund ---------- */

.bg,
.glow,
.veil {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.bg {
  z-index: -3;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0;
  transition: opacity 0.9s var(--ease);
}

.bg--dark {
  background-image: url("../assets/Hintergrund_Dunkel.jpg");
}

.bg--light {
  background-image: url("../assets/Hintergrund_Hell.jpg");
}

:root:not([data-theme="light"]) .bg--dark,
:root[data-theme="light"] .bg--light {
  opacity: 1;
}

.veil {
  z-index: -1;
  background: var(--veil);
  transition: background-color 0.6s var(--ease);
}

/* ---------- Flackerndes Licht (nur im Dunkelmodus) ---------- */

.glow {
  z-index: -2;
  mix-blend-mode: screen;
  opacity: 1;
  transition: opacity 0.9s var(--ease);
}

:root[data-theme="light"] .glow {
  opacity: 0;
}

.glow span {
  position: absolute;
  inset: 0;
  transform-origin: var(--flame-x) var(--flame-y);
}

/* Heller, unruhiger Kern – imitiert die Flamme */
.glow__core {
  background: radial-gradient(
    circle at var(--flame-x) var(--flame-y),
    rgba(255, 170, 60, 0.55) 0%,
    rgba(255, 120, 20, 0.22) 14%,
    rgba(255, 100, 10, 0.06) 28%,
    transparent 44%
  );
  animation: flicker 3.4s infinite;
}

/* Weiter, langsam atmender Schein im Raum */
.glow__halo {
  background: radial-gradient(
    ellipse 70% 70% at var(--flame-x) var(--flame-y),
    rgba(255, 110, 20, 0.2) 0%,
    rgba(255, 90, 10, 0.07) 35%,
    transparent 70%
  );
  animation: breathe 7s ease-in-out infinite;
}

@keyframes flicker {
  0%   { opacity: 0.85; transform: scale(1); }
  8%   { opacity: 1;    transform: scale(1.03); }
  15%  { opacity: 0.7;  transform: scale(0.97); }
  27%  { opacity: 0.95; transform: scale(1.02); }
  38%  { opacity: 0.78; transform: scale(0.98); }
  46%  { opacity: 1;    transform: scale(1.04); }
  58%  { opacity: 0.82; transform: scale(1); }
  69%  { opacity: 0.96; transform: scale(1.02); }
  81%  { opacity: 0.72; transform: scale(0.97); }
  92%  { opacity: 0.92; transform: scale(1.01); }
  100% { opacity: 0.85; transform: scale(1); }
}

@keyframes breathe {
  0%, 100% { opacity: 0.55; transform: scale(0.96); }
  50%      { opacity: 1;    transform: scale(1.06); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .glow__core,
  .glow__halo { animation: none; opacity: 0.85; }
}

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem clamp(1.25rem, 4vw, 3rem);
}

.wordmark {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

.wordmark:hover {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2.5vw, 2rem);
}

.site-nav__links {
  display: flex;
  gap: clamp(0.9rem, 2.5vw, 2rem);
}

.site-nav__links a,
.lang summary {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: color 0.2s var(--ease);
}

.site-nav__links a:hover,
.lang summary:hover {
  color: var(--accent);
}

.tools {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

/* Theme-Knopf */

.theme-toggle {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle svg {
  width: 1.05rem;
  height: 1.05rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-sun { display: block; }
.icon-moon { display: none; }

:root[data-theme="light"] .icon-sun { display: none; }
:root[data-theme="light"] .icon-moon { display: block; }

/* Sprach-Dropdown */

.lang {
  position: relative;
}

.lang summary {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  height: 2.25rem;
  padding: 0 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

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

.lang summary::after {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  margin-top: -0.2rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.2s var(--ease);
}

.lang[open] summary {
  border-color: var(--accent);
  color: var(--accent);
}

.lang[open] summary::after {
  margin-top: 0.15rem;
  transform: rotate(-135deg);
}

.lang ul {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  min-width: 9rem;
  margin: 0;
  padding: 0.4rem;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.lang li a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.lang li a:hover {
  background: var(--line);
}

.lang li a[aria-current="true"] {
  color: var(--accent);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  min-height: 100vh;
  min-height: 100svh;
  padding: 6rem 1.5rem 3.5rem;
}

.hero h1 {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.button {
  display: inline-block;
  padding: 0.85rem 2.4rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease);
}

.button:hover {
  background: var(--accent);
  color: #fff;
}

/* ---------- Inhaltsbereiche ---------- */

main section:not(.hero) {
  padding: clamp(2.5rem, 8vh, 5rem) clamp(1.25rem, 4vw, 3rem);
}

.panel {
  max-width: 40rem;
  margin: 0 auto;
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.panel h2 {
  margin: 0 0 1.25rem;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.panel p {
  margin: 0 0 1rem;
}

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

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

.panel a.mail {
  border-bottom: 1px solid var(--accent);
  transition: color 0.2s var(--ease);
}

.panel a.mail:hover {
  color: var(--accent);
}

/* ---------- Footer ---------- */

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem 1.5rem;
  padding: 2rem 1.5rem 2.5rem;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

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

/* ---------- Mobil ---------- */

@media (max-width: 640px) {
  .site-header {
    flex-wrap: wrap;
    padding-top: 1rem;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
  }

  .site-nav__links a {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
  }

  .hero {
    padding-top: 8rem;
  }
}