:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-soft: rgba(99, 102, 241, .12);
  --grad: linear-gradient(135deg, #6366f1, #8b5cf6);
  --bg: #f5f6fb;
  --bg-glow-1: rgba(99, 102, 241, .10);
  --bg-glow-2: rgba(139, 92, 246, .08);
  --card: #ffffff;
  --card-2: #f0f1f8;
  --text: #1c1f2e;
  --muted: #6d7382;
  --border: #e3e5f0;
  --danger: #e11d48;
  --ok: #16a34a;
  --warn: #ea8a00;
  --shadow: 0 1px 2px rgba(28, 31, 46, .05), 0 8px 24px rgba(28, 31, 46, .07);
  --shadow-sm: 0 1px 3px rgba(28, 31, 46, .08);
  --ring: 0 0 0 3px rgba(99, 102, 241, .25);
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0f16;
    --bg-glow-1: rgba(99, 102, 241, .14);
    --bg-glow-2: rgba(139, 92, 246, .10);
    --card: #171923;
    --card-2: #1f2230;
    --text: #edeef6;
    --muted: #9aa0b4;
    --border: #272b3a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);
    --ring: 0 0 0 3px rgba(99, 102, 241, .35);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(700px 420px at 12% -8%, var(--bg-glow-1), transparent 65%),
    radial-gradient(700px 420px at 95% 12%, var(--bg-glow-2), transparent 65%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
}
button { font: inherit; cursor: pointer; }
input, select { font: inherit; color: inherit; }
input:focus-visible, select:focus-visible, button:focus-visible {
  outline: none;
  box-shadow: var(--ring);
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: -.02em; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 9px;
  background: var(--grad); color: #fff; font-size: 16px;
  box-shadow: 0 4px 12px rgba(99, 102, 241, .35);
}

/* ===== Landing ===== */
#landing { min-height: 100vh; display: flex; flex-direction: column; }
.landing-header { padding: 22px 32px; }
.landing-main {
  flex: 1; display: flex; flex-wrap: wrap; gap: 56px;
  align-items: center; justify-content: center; padding: 32px 28px 72px;
}
.hero { max-width: 500px; }
.hero h1 {
  font-size: clamp(34px, 5vw, 48px); line-height: 1.12; margin: 0 0 18px;
  letter-spacing: -.03em;
  background: linear-gradient(120deg, var(--text) 30%, var(--primary) 85%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero p { color: var(--muted); font-size: 17px; line-height: 1.6; margin: 0 0 24px; }
.hero-features { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.hero-features li {
  display: flex; align-items: center; gap: 6px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 16px; box-shadow: var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease;
}
.hero-features li:hover { transform: translateX(4px); box-shadow: var(--shadow); }
.auth-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 18px; box-shadow: var(--shadow);
  padding: 28px; width: 100%; max-width: 380px;
}
.auth-tabs {
  display: flex; gap: 4px; margin-bottom: 20px;
  background: var(--card-2); border-radius: 12px; padding: 4px;
}
.auth-tabs button {
  flex: 1; padding: 9px; border: none; border-radius: 9px;
  background: transparent; color: var(--muted); font-weight: 650;
  transition: color .15s ease, background .15s ease, box-shadow .15s ease;
}
.auth-tabs button.active { background: var(--grad); color: #fff; box-shadow: 0 3px 10px rgba(99, 102, 241, .35); }
.auth-card form { display: grid; gap: 15px; }
.auth-note { margin: 0; font-size: 14px; color: var(--muted); }
.auth-note em { color: var(--primary); font-style: normal; font-weight: 650; }
.auth-card label { display: grid; gap: 6px; font-size: 14px; font-weight: 650; }
.auth-card .hint { font-weight: 450; color: var(--muted); }
.auth-card input {
  padding: 11px 14px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--card-2); transition: border-color .15s ease, box-shadow .15s ease;
}
.auth-card input:hover { border-color: var(--primary); }
.auth-error { color: var(--danger); font-size: 14px; margin: 12px 0 0; }

.btn-primary {
  background: var(--grad); color: #fff; border: none;
  padding: 12px 18px; border-radius: 10px; font-weight: 650;
  box-shadow: 0 4px 14px rgba(99, 102, 241, .35);
  transition: transform .12s ease, box-shadow .12s ease, filter .12s ease;
}
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 6px 18px rgba(99, 102, 241, .45); }
.btn-primary:active { transform: scale(.97); }
.btn-danger {
  background: transparent; color: var(--danger);
  border: 1px solid var(--danger); padding: 9px 14px; border-radius: 10px;
}
.btn-danger:hover { background: rgba(225, 29, 72, .08); }

/* ===== Topbar ===== */
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 18px;
  background: color-mix(in srgb, var(--card) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
}
.icon-btn {
  background: none; border: none; font-size: 19px; color: var(--text);
  padding: 5px 9px; border-radius: 9px; line-height: 1;
  transition: background .15s ease, transform .12s ease;
}
.icon-btn:hover { background: var(--card-2); }
.icon-btn:active { transform: scale(.92); }
#menuBtn { display: none; }
#searchInput {
  flex: 1; max-width: 420px; margin-left: auto;
  padding: 9px 16px; border: 1px solid var(--border); border-radius: 999px;
  background: var(--card-2);
  transition: border-color .15s ease, box-shadow .15s ease, max-width .2s ease;
}
#searchInput:hover { border-color: var(--primary); }
.sync { font-size: 13px; font-weight: 550; white-space: nowrap; color: var(--muted); }
.sync.ok { color: var(--ok); }
.sync.busy { color: var(--warn); }
.sync.off { color: var(--muted); }

.user-wrap { position: relative; }
.user-chip {
  width: 38px; height: 38px; border-radius: 50%; border: none;
  background: var(--grad); color: #fff; font-weight: 800;
  box-shadow: 0 3px 10px rgba(99, 102, 241, .35);
  transition: transform .12s ease;
}
.user-chip:hover { transform: scale(1.06); }
.user-menu {
  position: absolute; right: 0; top: 46px; z-index: 40;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; box-shadow: var(--shadow);
  min-width: 220px; padding: 8px; display: grid; gap: 4px;
}
.user-info { padding: 8px 10px; display: grid; }
.user-info small { color: var(--muted); }
.user-menu button {
  text-align: left; background: none; border: none;
  padding: 10px; border-radius: 8px; color: var(--text);
  transition: background .12s ease;
}
.user-menu button:hover { background: var(--card-2); }

/* ===== Layout ===== */
.layout { display: flex; min-height: calc(100vh - 59px); }
#sidebar {
  width: 256px; flex-shrink: 0; padding: 18px 12px;
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 12px;
  background: color-mix(in srgb, var(--card) 55%, transparent);
}
.nav-today {
  width: 100%; text-align: left; padding: 11px 14px;
  border: 1px solid var(--border); border-radius: 10px; font-weight: 650;
  background: var(--card); color: var(--text); margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
  transition: border-color .15s ease, transform .12s ease;
}
.nav-today:hover { border-color: var(--primary); transform: translateX(2px); }
.nav-label {
  font-size: 11.5px; text-transform: uppercase; letter-spacing: .08em;
  font-weight: 700; color: var(--muted); padding: 0 12px 8px;
}
#listNav { list-style: none; margin: 0; padding: 0; display: grid; gap: 3px; }
#listNav button {
  width: 100%; display: flex; align-items: center; gap: 8px;
  padding: 10px 12px; border: none; border-radius: 9px;
  background: none; color: var(--text); text-align: left;
  transition: background .12s ease;
}
#listNav button:hover { background: var(--card-2); }
#listNav li.active button {
  background: var(--grad); color: #fff;
  box-shadow: 0 3px 10px rgba(99, 102, 241, .3);
}
#listNav .count {
  margin-left: auto; font-size: 12px; font-weight: 650; color: var(--muted);
  background: var(--card-2); border-radius: 999px; padding: 1px 8px;
}
#listNav li.active .count { background: rgba(255, 255, 255, .25); color: #fff; }
#newListForm input {
  width: 100%; padding: 10px 12px; border: 1.5px dashed var(--border);
  border-radius: 10px; background: none; color: var(--text);
  transition: border-color .15s ease;
}
#newListForm input:hover, #newListForm input:focus { border-color: var(--primary); }

#main { flex: 1; padding: 28px 28px 40px; max-width: 780px; }

/* ===== Listenansicht ===== */
.view-header { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.view-header h2 { margin: 0; font-size: 26px; letter-spacing: -.02em; flex: 1; overflow-wrap: anywhere; }
.view-sub { color: var(--muted); font-size: 14px; margin: 0 0 18px; }

.filters { display: flex; gap: 6px; margin-bottom: 16px; }
.filters button {
  border: 1px solid var(--border); background: var(--card); color: var(--muted);
  padding: 6px 15px; border-radius: 999px; font-size: 13px; font-weight: 550;
  transition: all .15s ease;
}
.filters button:hover { border-color: var(--primary); color: var(--primary); }
.filters button.active {
  background: var(--grad); border-color: transparent; color: #fff;
  box-shadow: 0 3px 10px rgba(99, 102, 241, .3);
}

.add-form { display: flex; gap: 8px; margin-bottom: 18px; }
.add-form input {
  flex: 1; padding: 12px 16px; border: 1px solid var(--border);
  border-radius: 12px; background: var(--card); box-shadow: var(--shadow-sm);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.add-form input:hover { border-color: var(--primary); }
.add-form button { border-radius: 12px; min-width: 48px; font-size: 18px; }

.items { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.item {
  display: flex; align-items: center; gap: 11px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 11px 14px; box-shadow: var(--shadow-sm);
  transition: transform .12s ease, box-shadow .15s ease, border-color .15s ease, opacity .15s ease;
}
.item:hover { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); box-shadow: var(--shadow); }
.item.dragging { opacity: .4; }
.item.drop-above { box-shadow: 0 -3px 0 var(--primary), var(--shadow-sm); }
.item.drop-below { box-shadow: 0 3px 0 var(--primary), var(--shadow-sm); }
.item .grip { cursor: grab; color: var(--muted); user-select: none; opacity: .6; }
.item input[type=checkbox] {
  width: 20px; height: 20px; accent-color: var(--primary);
  flex-shrink: 0; cursor: pointer;
}
.item .txt { flex: 1; overflow-wrap: anywhere; cursor: pointer; transition: color .15s ease; }
.item.done { opacity: .75; }
.item.done .txt { text-decoration: line-through; color: var(--muted); }
.prio { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.prio.p1 { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.prio.p2 { background: var(--warn); box-shadow: 0 0 6px var(--warn); }
.prio.p3 { background: var(--danger); box-shadow: 0 0 6px var(--danger); }
.due {
  font-size: 12px; font-weight: 550; color: var(--muted); background: var(--card-2);
  padding: 3px 9px; border-radius: 999px; white-space: nowrap;
}
.due.overdue { color: #fff; background: var(--danger); }
.time-badge {
  font-size: 12px; font-weight: 550; color: var(--muted); background: var(--card-2);
  padding: 3px 9px; border-radius: 999px; white-space: nowrap;
}
.time-badge.done-time { color: var(--ok); }
.list-tag {
  font-size: 12px; font-weight: 550; color: var(--primary); background: var(--primary-soft);
  padding: 3px 9px; border-radius: 999px; white-space: nowrap; cursor: pointer;
  transition: filter .12s ease;
}
.list-tag:hover { filter: brightness(1.15); }
.empty { color: var(--muted); text-align: center; padding: 44px 0; }

/* Unterpunkte: eingerückt, mit dezenter Verbindungslinie */
.item.sub {
  margin-left: 38px;
  padding: 8px 12px;
  border-left: 3px solid color-mix(in srgb, var(--primary) 40%, var(--border));
}
.sub-add-row { list-style: none; }
.add-form.sub-add { margin: 0 0 2px 38px; }
.add-form.sub-add input { padding: 9px 13px; }
.sub-count { font-variant-numeric: tabular-nums; }

.section-label {
  font-size: 12.5px; font-weight: 750; text-transform: uppercase;
  letter-spacing: .06em; color: var(--muted); margin: 28px 0 10px;
}

/* ===== Heute-FAB ===== */
#todayFab {
  position: fixed; right: 20px; top: 50%; transform: translateY(-50%);
  z-index: 25; display: grid; place-items: center; gap: 2px;
  width: 66px; height: 66px; border-radius: 20px; border: none;
  background: var(--grad); color: #fff; font-size: 21px;
  box-shadow: 0 6px 20px rgba(99, 102, 241, .5);
  transition: transform .15s ease, box-shadow .15s ease;
}
#todayFab span { font-size: 11px; font-weight: 750; letter-spacing: .04em; }
#todayFab:hover { transform: translateY(-50%) scale(1.06); box-shadow: 0 8px 26px rgba(99, 102, 241, .6); }
#todayFab:active { transform: translateY(-50%) scale(.95); }

/* ===== Dialog ===== */
dialog {
  border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  background: var(--card); color: var(--text);
  width: min(92vw, 430px); padding: 24px;
}
dialog::backdrop { background: rgba(8, 9, 16, .55); backdrop-filter: blur(3px); }
#itemForm { display: grid; gap: 15px; }
#itemForm h3 { margin: 0; letter-spacing: -.01em; }
#itemForm label { display: grid; gap: 6px; font-size: 14px; font-weight: 650; }
#itemForm input, #itemForm select {
  padding: 10px 13px; border: 1px solid var(--border); border-radius: 10px; background: var(--card-2);
}
.dialog-times { font-size: 13px; color: var(--muted); display: grid; gap: 3px; }
.dialog-actions { display: flex; gap: 8px; align-items: center; }
.dialog-actions .spacer { flex: 1; }
.dialog-actions button {
  padding: 10px 15px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--card-2); color: var(--text);
}
.dialog-actions .btn-primary { border: none; background: var(--grad); color: #fff; }
.dialog-actions .btn-danger { background: transparent; }

/* ===== Mobil ===== */
@media (max-width: 760px) {
  #menuBtn { display: block; }
  .brand-name { display: none; }
  #sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; z-index: 50;
    transform: translateX(-100%); transition: transform .22s ease;
    box-shadow: var(--shadow); padding-top: 22px; width: 276px;
    background: var(--card);
  }
  body.sidebar-open #sidebar { transform: translateX(0); }
  #overlay {
    position: fixed; inset: 0; background: rgba(8, 9, 16, .45); z-index: 45;
  }
  #main { padding: 18px 14px 120px; }
  #todayFab {
    top: auto; transform: none; bottom: 24px; right: 16px;
    width: 62px; height: 62px;
  }
  #todayFab:hover, #todayFab:active { transform: none; }
  .landing-main { gap: 36px; }
  #searchInput { min-width: 0; }
}