/* ===== Design-Tokens / Theme ===== */
:root {
  --bg: #0f1117;
  --bg-elev: #171a23;
  --bg-elev-2: #1e2230;
  --border: #2a2f3d;
  --text: #e7e9ee;
  --text-dim: #9aa3b2;
  --primary: #6d8bff;
  --primary-hover: #5a79f5;
  --primary-text: #ffffff;
  --danger: #ff5d6c;
  --danger-hover: #ec495a;
  --success: #34d399;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --radius-sm: 10px;
  --nav-h: 60px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

:root[data-theme="light"] {
  --bg: #f4f6fb;
  --bg-elev: #ffffff;
  --bg-elev-2: #eef1f7;
  --border: #dde1ea;
  --text: #1a1d26;
  --text-dim: #5c6577;
  --primary: #3f5dd9;
  --primary-hover: #324bbd;
  --shadow: 0 10px 30px rgba(20, 30, 60, 0.12);
  --shadow-sm: 0 2px 8px rgba(20, 30, 60, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  overflow-x: hidden;
}

a { color: var(--primary); text-decoration: none; }
img { max-width: 100%; display: block; }

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 18px;
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 50;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1.05rem; letter-spacing: 0.2px;
  color: var(--text);
}
.brand .logo {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #9b7bff);
  display: grid; place-items: center; color: #fff; font-size: 16px;
}
.nav-spacer { flex: 1; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  color: var(--text-dim); padding: 8px 12px; border-radius: 8px;
  font-size: 0.95rem; font-weight: 500; min-height: 40px; display: inline-flex; align-items: center;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--bg-elev-2); }
.nav-user { color: var(--text-dim); font-size: 0.9rem; display: flex; align-items: center; gap: 6px; }
.nav-user b { color: var(--text); font-weight: 600; }
.role-badge {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.5px;
  background: var(--bg-elev-2); color: var(--text-dim);
  padding: 2px 7px; border-radius: 20px; border: 1px solid var(--border);
}
.role-badge.admin { color: var(--primary); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }

/* Hamburger (mobil) */
.nav-toggle {
  display: none; background: none; border: none; color: var(--text);
  font-size: 1.5rem; cursor: pointer; padding: 6px; min-width: 44px; min-height: 44px;
}

/* ===== Buttons ===== */
.btn {
  appearance: none; border: 1px solid var(--border); background: var(--bg-elev-2);
  color: var(--text); font: inherit; font-weight: 600; font-size: 0.92rem;
  padding: 10px 16px; border-radius: var(--radius-sm); cursor: pointer;
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: transform .08s ease, background .15s ease, border-color .15s ease, opacity .15s;
}
.btn:hover { background: color-mix(in srgb, var(--bg-elev-2) 70%, var(--text) 8%); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: transparent; border-color: color-mix(in srgb, var(--danger) 50%, var(--border)); color: var(--danger); }
.btn-danger:hover { background: color-mix(in srgb, var(--danger) 14%, transparent); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 7px 11px; min-height: 38px; font-size: 0.85rem; }
.btn-icon { padding: 8px; min-width: 40px; min-height: 40px; }
.theme-toggle { background: transparent; border: 1px solid var(--border); }

/* ===== Layout ===== */
.page {
  max-width: 1200px; margin: 0 auto; padding: calc(var(--nav-h) + 24px) 18px 60px;
}
.page-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; margin-bottom: 22px; flex-wrap: wrap;
}
.page-head h1 { font-size: 1.5rem; margin: 0; }
.muted { color: var(--text-dim); }
.center-screen {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
}

/* ===== Cards / Auth ===== */
.card {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.auth-card { width: 100%; max-width: 400px; padding: 32px 28px; }
.auth-card h1 { margin: 0 0 4px; font-size: 1.5rem; }
.auth-card .sub { color: var(--text-dim); margin: 0 0 22px; font-size: 0.95rem; }

/* ===== Forms ===== */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 0.85rem; color: var(--text-dim); margin-bottom: 6px; font-weight: 600; }
.input {
  width: 100%; padding: 12px 14px; font: inherit; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
  min-height: 46px; transition: border-color .15s, box-shadow .15s;
}
.input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 25%, transparent);
}
.input:disabled { opacity: .6; }
.input-suffix-wrap { display: flex; align-items: stretch; }
.input-suffix-wrap .input { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.input-suffix {
  display: inline-flex; align-items: center; padding: 0 12px;
  background: var(--bg-elev-2); border: 1px solid var(--border); border-left: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-dim); font-size: 0.9rem;
}
.form-actions { display: flex; gap: 10px; margin-top: 8px; }
.form-actions .btn { flex: 1; }

.hint {
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 35%, var(--border));
  color: var(--text); padding: 12px 14px; border-radius: var(--radius-sm);
  font-size: 0.9rem; margin-bottom: 18px;
}
.error-text { color: var(--danger); font-size: 0.9rem; margin-top: 10px; min-height: 1.2em; }

/* ===== Galerie ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
}
@media (min-width: 600px) { .gallery { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); } }
.tile {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; transition: transform .12s ease, box-shadow .12s ease;
}
.tile:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.tile-img {
  aspect-ratio: 1 / 1; width: 100%; object-fit: cover; cursor: pointer;
  background: var(--bg-elev-2); border: none;
}
.tile-body { padding: 10px 12px; display: flex; flex-direction: column; gap: 6px; }
.tile-name {
  font-weight: 600; font-size: 0.92rem; word-break: break-word;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.tile-owner { font-size: 0.78rem; color: var(--text-dim); display: flex; align-items: center; gap: 5px; }
.tile-actions { display: flex; gap: 6px; margin-top: 4px; flex-wrap: wrap; }
.tile-actions .btn { flex: 1; }

.empty {
  text-align: center; padding: 60px 20px; color: var(--text-dim);
  border: 1px dashed var(--border); border-radius: var(--radius);
}
.empty .big { font-size: 2.4rem; margin-bottom: 8px; }

/* ===== Dropzone ===== */
.dropzone {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 26px; text-align: center; color: var(--text-dim);
  cursor: pointer; transition: border-color .15s, background .15s; margin-bottom: 24px;
  background: var(--bg-elev);
}
.dropzone:hover, .dropzone.drag {
  border-color: var(--primary); color: var(--text);
  background: color-mix(in srgb, var(--primary) 8%, var(--bg-elev));
}
.dropzone .big { font-size: 2rem; margin-bottom: 6px; }
.dropzone b { color: var(--primary); }

/* ===== Tabelle (Admin) ===== */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; min-width: 520px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
th { color: var(--text-dim); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: .4px; }
tr:last-child td { border-bottom: none; }
td .row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* ===== Modal / Dialog ===== */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.6);
  display: none; align-items: center; justify-content: center; padding: 18px; z-index: 100;
  backdrop-filter: blur(2px);
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); width: 100%; max-width: 440px; padding: 22px; max-height: 90vh; overflow-y: auto;
}
.modal h2 { margin: 0 0 4px; font-size: 1.2rem; }
.modal .modal-sub { color: var(--text-dim); font-size: 0.9rem; margin: 0 0 16px; }
.modal-thumb {
  width: 100%; max-height: 220px; object-fit: contain; border-radius: var(--radius-sm);
  background: var(--bg); margin-bottom: 14px; border: 1px solid var(--border);
}
.progress { height: 6px; background: var(--bg-elev-2); border-radius: 999px; overflow: hidden; margin-top: 12px; display: none; }
.progress.show { display: block; }
.progress > span { display: block; height: 100%; width: 0; background: var(--primary); transition: width .15s; }

/* ===== Lightbox ===== */
.lightbox {
  position: fixed; inset: 0; background: rgba(0,0,0,.92);
  display: none; align-items: center; justify-content: center; z-index: 200; touch-action: pan-y;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 94vw; max-height: 86vh; object-fit: contain; border-radius: 8px; }
.lightbox .lb-close {
  position: absolute; top: 14px; right: 16px; font-size: 1.6rem; color: #fff;
  background: rgba(255,255,255,.12); border: none; border-radius: 50%;
  width: 46px; height: 46px; cursor: pointer; display: grid; place-items: center;
}
.lightbox .lb-cap {
  position: absolute; bottom: 18px; left: 0; right: 0; text-align: center;
  color: #fff; font-size: 0.95rem; padding: 0 16px; text-shadow: 0 1px 3px rgba(0,0,0,.8);
}
.lightbox .lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,.12); border: none; color: #fff; font-size: 2rem;
  width: 52px; height: 52px; border-radius: 50%; cursor: pointer; display: grid; place-items: center;
}
.lightbox .lb-prev { left: 12px; } .lightbox .lb-next { right: 12px; }

/* ===== Toasts ===== */
.toasts { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); z-index: 300; display: flex; flex-direction: column; gap: 8px; width: min(92vw, 420px); }
.toast {
  background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text);
  padding: 12px 16px; border-radius: var(--radius-sm); box-shadow: var(--shadow);
  font-size: 0.92rem; animation: toast-in .2s ease; border-left: 4px solid var(--primary);
}
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--success); }
@keyframes toast-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.spinner {
  width: 36px; height: 36px; border: 3px solid var(--border); border-top-color: var(--primary);
  border-radius: 50%; animation: spin .8s linear infinite; margin: 40px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Kopf-Aktionen ===== */
.head-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex; align-items: center; flex-wrap: wrap; gap: 2px;
  margin-bottom: 18px; padding: 10px 14px;
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.92rem;
}
.breadcrumb .crumb {
  color: var(--text-dim); padding: 6px 8px; border-radius: 7px; min-height: 36px;
  display: inline-flex; align-items: center; text-decoration: none;
}
.breadcrumb a.crumb:hover { background: var(--bg-elev-2); color: var(--text); }
.breadcrumb .crumb.current { color: var(--text); font-weight: 600; }
.breadcrumb .crumb-sep { color: var(--text-dim); opacity: .5; padding: 0 1px; }

/* ===== Section-Labels ===== */
.section-label {
  font-size: 0.78rem; text-transform: uppercase; letter-spacing: .6px;
  color: var(--text-dim); font-weight: 700; margin: 6px 2px 10px;
}
.section-label + .gallery { margin-bottom: 26px; }

/* ===== Ordner-Kacheln ===== */
.folder-tile { cursor: pointer; }
.folder-tile:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.folder-face {
  aspect-ratio: 1 / 1; display: grid; place-items: center;
  background:
    radial-gradient(120% 80% at 50% 0%, color-mix(in srgb, var(--primary) 18%, transparent), transparent 60%),
    var(--bg-elev-2);
}
.folder-ico { font-size: 3.4rem; line-height: 1; filter: drop-shadow(0 4px 8px rgba(0,0,0,.25)); }

/* ===== Avatar / Initial-Badge ===== */
.ava {
  display: inline-grid; place-items: center; width: 20px; height: 20px;
  border-radius: 50%; font-size: 0.7rem; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--primary), #9b7bff); flex: 0 0 auto;
}
.tile-owner { display: flex; align-items: center; gap: 6px; }

/* ===== Mobile ===== */
@media (max-width: 680px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: fixed; top: var(--nav-h); right: 0; left: 0;
    flex-direction: column; align-items: stretch; gap: 2px; padding: 10px 14px 16px;
    background: var(--bg-elev); border-bottom: 1px solid var(--border); box-shadow: var(--shadow);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; min-height: 48px; }
  .nav-user { order: -1; }
  .page-head h1 { font-size: 1.3rem; }
}