/* ============================================================
   crettig.de – Entwurf 1
   Farbwelt: Orange auf Grau/Schwarz
   ============================================================ */

:root {
  /* Basis */
  --bg:            #0c0c0d;
  --bg-deep:       #070708;
  --surface:       #131315;
  --border:        #26262a;
  --border-soft:   #1c1c20;

  /* Text */
  --text:          #e8e8ea;
  --muted:         #8a8a91;
  --dim:           #5a5a61;

  /* Akzent – Orange */
  --accent:        #ff6b1a;
  --accent-soft:   #ff8c4d;
  --accent-deep:   #c74d08;
  --accent-glow:   255, 107, 26;

  /* Maße */
  --radius:        14px;
  --radius-sm:     10px;
  --frame-pad:     clamp(1.5rem, 4vw, 3.5rem);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

/* Wichtig: .stage/.vault setzen display, das würde [hidden] aushebeln */
[hidden] { display: none !important; }

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

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
}

/* ---------- Hintergrund: abstrakter Verlauf ----------
   Drei weiche Lichtquellen, die langsam driften.
   Später kann hier zusätzlich ein Foto mit geringer
   Deckkraft liegen (.bg-photo).                        */

.bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 50% 0%, #17171a 0%, var(--bg) 55%, var(--bg-deep) 100%);
}

.bg span {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .5;
  will-change: transform;
}

.bg span:nth-child(1) {
  width: 46vmax; height: 46vmax;
  top: -14vmax; left: -10vmax;
  background: radial-gradient(circle, rgba(var(--accent-glow), .55) 0%, transparent 68%);
  animation: drift-a 26s ease-in-out infinite alternate;
}

.bg span:nth-child(2) {
  width: 38vmax; height: 38vmax;
  bottom: -16vmax; right: -8vmax;
  background: radial-gradient(circle, rgba(199, 77, 8, .45) 0%, transparent 68%);
  animation: drift-b 32s ease-in-out infinite alternate;
}

.bg span:nth-child(3) {
  width: 30vmax; height: 30vmax;
  top: 42%; left: 58%;
  background: radial-gradient(circle, rgba(120, 120, 135, .28) 0%, transparent 70%);
  animation: drift-c 38s ease-in-out infinite alternate;
}

@keyframes drift-a { to { transform: translate3d(8vmax, 6vmax, 0) scale(1.15); } }
@keyframes drift-b { to { transform: translate3d(-7vmax, -5vmax, 0) scale(1.1); } }
@keyframes drift-c { to { transform: translate3d(-9vmax, 4vmax, 0) scale(.9); } }

/* Feines Rauschen darüber – nimmt dem Verlauf das Banding */
.bg::after {
  content: "";
  position: absolute;
  inset: -50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
  opacity: .16;
  pointer-events: none;
}

/* Hintergrundfoto – sehr dezent, liegt UNTER dem Verlauf.
   Entsättigt und dunkel gehalten, damit es die Stimmung trägt,
   ohne vom Login abzulenken. */
.bg-photo {
  position: fixed;
  inset: 0;
  z-index: -3;
  background: url("assets/hintergrund.webp") 50% 46% / cover no-repeat;
  opacity: .38;
  filter: grayscale(.55) contrast(1.12) brightness(.85) saturate(.9);
  pointer-events: none;
}

/* Der Verlauf darüber wird halbtransparent, damit das Foto durchkommt */
.bg {
  background:
    radial-gradient(120% 90% at 50% 0%,
      rgba(23, 23, 26, .62) 0%,
      rgba(12, 12, 13, .74) 55%,
      rgba(7, 7, 8, .88) 100%);
}


/* ---------- Bühne ---------- */

.stage {
  flex: 1;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 2.5rem);
}

/* Auf breiten Schirmen sitzt der Rahmen links außermittig.
   Das blaue Auto im Hintergrund (ca. 59 % der Bildbreite)
   bleibt dadurch rechts daneben sichtbar. */
@media (min-width: 62rem) {
  .stage {
    /* Der Rahmen wandert prozentual mit: Das blaue Auto sitzt bei
       58,6 % der Bildbreite. Da das Foto 4:3 ist und der Schirm
       breiter, bestimmt die Breite den Maßstab – die Autoposition
       ist also ein fester Anteil der Fensterbreite. Der Rahmen
       endet knapp davor, egal wie breit der Schirm ist. */
    justify-items: start;
    padding-left: max(2rem, 58.6vw - 440px - 7vw);
  }
}

/* ---------- Rahmen mit Eckmarken ---------- */

.frame {
  position: relative;
  width: min(440px, 100%);
  padding: var(--frame-pad);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(16, 16, 18, .82);
  backdrop-filter: blur(22px) saturate(1.2);
  -webkit-backdrop-filter: blur(22px) saturate(1.2);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, .04) inset,
    0 30px 80px -30px rgba(0, 0, 0, .9);
}

/* Die vier Kreuze an den Ecken */
.frame > .cross {
  position: absolute;
  width: 11px;
  height: 11px;
  opacity: .5;
}
.frame > .cross::before,
.frame > .cross::after {
  content: "";
  position: absolute;
  background: var(--accent);
}
.frame > .cross::before { inset: 5px 0; height: 1px; }
.frame > .cross::after  { inset: 0 5px; width: 1px; }

.frame > .cross:nth-of-type(1) { top: -6px;    left: -6px; }
.frame > .cross:nth-of-type(2) { top: -6px;    right: -6px; }
.frame > .cross:nth-of-type(3) { bottom: -6px; left: -6px; }
.frame > .cross:nth-of-type(4) { bottom: -6px; right: -6px; }

/* ---------- Logo ---------- */

.logo {
  display: grid;
  place-items: center;
  margin-bottom: 2rem;
}

.logo img {
  max-width: 130px;
  height: auto;
  display: block;
}

/* Rundes Logo: nur die Felge */
.logo-mark {
  position: relative;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  overflow: hidden;
  display: grid;
  place-items: center;
  border: 1px solid rgba(var(--accent-glow), .35);
  box-shadow:
    0 0 0 4px rgba(var(--accent-glow), .06),
    0 0 46px -12px rgba(var(--accent-glow), .55);
}

.logo-mark img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(.96) saturate(1.08) contrast(1.04);
}


/* ---------- Formular ---------- */

.field { margin-bottom: .875rem; }

.field input {
  width: 100%;
  padding: .875rem 1rem;
  background: rgba(8, 8, 9, .6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: .9375rem;
  outline: none;
  transition: border-color .2s ease, background-color .2s ease, box-shadow .2s ease;
}

.field input::placeholder { color: var(--dim); }

.field input:focus {
  border-color: var(--accent);
  background: rgba(8, 8, 9, .85);
  box-shadow: 0 0 0 3px rgba(var(--accent-glow), .12);
}

.btn {
  width: 100%;
  margin-top: 1.25rem;
  padding: .9375rem 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  background: var(--accent);
  color: #140a04;
  border: 0;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .01em;
  cursor: pointer;
  transition: background-color .2s ease, transform .18s ease, box-shadow .25s ease;
}

.btn:hover {
  background: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -12px rgba(var(--accent-glow), .6);
}

.btn:active { transform: translateY(0); }

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

.btn svg { transition: transform .2s ease; }
.btn:hover svg { transform: translateX(3px); }

/* Honeypot – für Menschen unsichtbar */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.note {
  margin: 1.125rem 0 0;
  font-size: .8125rem;
  color: var(--dim);
  text-align: center;
}

.error {
  margin: 0 0 1rem;
  padding: .75rem 1rem;
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(var(--accent-glow), .08);
  color: var(--accent-soft);
  font-size: .875rem;
}

/* ---------- Einfahren beim Laden (versetzt) ---------- */

.rise {
  opacity: 0;
  transform: translateY(14px);
  animation: rise .75s cubic-bezier(.22, .68, .32, 1) forwards;
}

.rise:nth-child(1) { animation-delay: .05s; }
.rise:nth-child(2) { animation-delay: .13s; }
.rise:nth-child(3) { animation-delay: .21s; }
.rise:nth-child(4) { animation-delay: .29s; }
.rise:nth-child(5) { animation-delay: .37s; }

@keyframes rise {
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Bereich nach dem Login – Dateikacheln
   ============================================================ */

.vault {
  width: min(1180px, 100%);
  margin-inline: auto;
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 4vw, 2rem) 3rem;
}

.vault-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-soft);
}

.vault-head h1 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -.02em;
}

.vault-head p {
  margin: .35rem 0 0;
  color: var(--muted);
  font-size: .9375rem;
}

.logout {
  color: var(--muted);
  font-size: .875rem;
  text-decoration: none;
  padding: .5rem .9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: color .2s ease, border-color .2s ease;
}

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

/* Kachelraster */
.tiles {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
}

.tile {
  position: relative;
  display: block;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  transition: transform .35s cubic-bezier(.22,.68,.32,1),
              border-color .3s ease,
              box-shadow .35s ease;
}

.tile:hover {
  transform: translateY(-4px);
  border-color: var(--tile-accent, var(--accent));
  box-shadow: 0 22px 44px -22px rgba(0, 0, 0, .85);
}

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

/* Vorschaufläche – Farbe kommt per data-Attribut aus dem JS */
.tile-visual {
  aspect-ratio: 16 / 10;
  background: var(--tile-bg, #1a1a1d);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  transition: background-color .4s ease;
}

.tile-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s cubic-bezier(.22,.68,.32,1), opacity .3s ease;
}

.tile:hover .tile-visual img { transform: scale(1.04); }

/* Symbol, wenn es keine Vorschau gibt */
.tile-icon {
  width: 42px;
  height: 42px;
  color: var(--tile-accent, var(--accent));
  opacity: .8;
}

.tile-foot {
  padding: .9rem 1.1rem 1.05rem;
}

.tile-meta {
  font-size: .6875rem;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--dim);
  transition: color .3s ease;
}

.tile:hover .tile-meta { color: var(--tile-accent, var(--accent)); }

.tile-name {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-top: .3rem;
  font-size: 1rem;
  font-weight: 500;
}

.tile-name .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--tile-accent, var(--accent));
  flex: none;
}

/* ---------- Fußzeile ---------- */

footer {
  padding: 1.5rem clamp(1rem, 4vw, 2rem) 2rem;
  display: flex;
  gap: 1.25rem;
  justify-content: center;
  flex-wrap: wrap;
  font-size: .8125rem;
  color: var(--muted);
}

footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color .2s ease;
}

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

/* ---------- Bewegung reduzieren ---------- */

@media (prefers-reduced-motion: reduce) {
  .bg span { animation: none; }
  .rise { animation: none; opacity: 1; transform: none; }
  .tile, .btn, .tile-visual img { transition: none; }
  .tile:hover { transform: none; }
  .btn:hover { transform: none; }
}


/* ============================================================
   Dateiliste (ordner.php)
   ============================================================ */

.filelist { list-style: none; margin: 0; padding: 0; }

.filelist li + li { margin-top: .5rem; }

.filelist a {
  display: flex;
  align-items: center;
  gap: .9rem;
  padding: .85rem 1.1rem;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  background: rgba(19, 19, 21, .6);
  color: var(--text);
  text-decoration: none;
  transition: border-color .2s ease, background-color .2s ease, transform .2s ease;
}

.filelist a:hover {
  border-color: var(--accent);
  background: rgba(25, 20, 16, .75);
  transform: translateX(3px);
}

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

.file-icon { width: 20px; height: 20px; color: var(--accent); flex: none; }
.file-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-size { color: var(--dim); font-size: .8125rem; flex: none; font-variant-numeric: tabular-nums; }
.file-dl   { width: 17px; height: 17px; color: var(--dim); flex: none; transition: color .2s ease; }
.filelist a:hover .file-dl { color: var(--accent); }


/* ============================================================
   Fließtext (Datenschutz)
   ============================================================ */

.prose { max-width: 62ch; color: var(--muted); }
.prose h2 {
  margin: 2rem 0 .6rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -.01em;
}
.prose h2:first-child { margin-top: 0; }
.prose p  { margin: 0 0 .9rem; font-size: .9375rem; line-height: 1.7; }
.prose ul { margin: 0 0 .9rem; padding-left: 1.1rem; font-size: .9375rem; line-height: 1.7; }
.prose li { margin-bottom: .2rem; }
.prose strong { color: var(--text); font-weight: 600; }
.prose a { color: var(--accent); text-decoration: none; }
.prose a:hover { text-decoration: underline; }