@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
  --bg: #0b0f1a;
  --bg-elevated: #131825;
  --card: #1a2030;
  --card-hover: #232a3e;
  --border: rgba(255,255,255,0.06);
  --border-strong: rgba(255,255,255,0.14);

  --text: #ffffff;
  --text-muted: #a5b0c4;
  --text-dim: #6c7793;

  /* Accent: frisches Türkis + warmes Mint */
  --primary: #2dd4bf;
  --primary-2: #5eead4;
  --primary-text: #053b34;
  --primary-glow: rgba(45, 212, 191, 0.3);
  --gradient-primary: linear-gradient(135deg, #14b8a6 0%, #5eead4 100%);
  --gradient-warm: linear-gradient(135deg, #f97316 0%, #fbbf24 100%);
  --gradient-cool: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --gradient-danger: linear-gradient(135deg, #f43f5e 0%, #fb923c 100%);
  --gradient-gold: linear-gradient(135deg, #b8860b 0%, #ffd700 50%, #fff8b8 100%);

  --danger: #f43f5e;
  --warning: #fbbf24;

  --radius-lg: 24px;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;

  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.01em;
}

body {
  background:
    radial-gradient(circle at 15% -10%, rgba(45,212,191,0.10) 0%, transparent 55%),
    radial-gradient(circle at 90% 100%, rgba(124,58,237,0.08) 0%, transparent 55%),
    var(--bg);
  background-attachment: fixed;
}

button { font-family: inherit; }
input, textarea { font-family: inherit; color: var(--text); }

.app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100dvh;
  padding-bottom: 100px;
  position: relative;
}

/* ===== Auth ===== */
.auth-screen {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 32px;
}
.auth-screen.active { display: flex; }

.auth-logo {
  font-size: 64px;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 30px var(--primary-glow));
  animation: float 3s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

.auth-title {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.auth-subtitle { color: var(--text-muted); margin-bottom: 40px; font-size: 15px; }

.auth-form { width: 100%; max-width: 340px; }
.auth-form input {
  width: 100%;
  padding: 16px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  margin-bottom: 12px;
  outline: none;
}
.auth-form input:focus { border-color: var(--primary); background: var(--card-hover); }
.auth-form input::placeholder { color: var(--text-dim); }

.auth-error { color: var(--danger); font-size: 13px; margin-bottom: 12px; text-align: center; }

.auth-divider {
  display: flex; align-items: center; margin: 16px 0;
  color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em;
}
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.auth-divider span { padding: 0 12px; }

/* ===== Buttons ===== */
.btn {
  width: 100%; padding: 16px 24px; border: none;
  border-radius: var(--radius-pill);
  font-size: 15px; font-weight: 700; cursor: pointer;
  transition: transform 0.1s, box-shadow 0.2s, opacity 0.2s;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary {
  background: var(--gradient-primary);
  color: var(--primary-text);
  box-shadow: 0 4px 16px var(--primary-glow);
}
.btn-secondary { background: transparent; color: var(--primary); margin-top: 8px; }
.btn-outline { background: transparent; border: 1px solid var(--border-strong); color: var(--text); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid rgba(244,63,94,0.3); }
.btn-oidc { background: var(--card); border: 1px solid var(--border-strong); color: var(--text); margin-bottom: 12px; }
.btn-oidc:hover { background: var(--card-hover); }

/* ===== Header ===== */
.header {
  padding: 24px 24px 12px;
  display: flex; justify-content: space-between; align-items: flex-start; gap: 16px;
}
.header h1 { font-size: 32px; font-weight: 800; letter-spacing: -0.03em; }
.header-greet {
  color: var(--text-muted); font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 2px;
}

.today-pills { display: flex; gap: 8px; }
.pill {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 8px 14px; border-radius: var(--radius); min-width: 64px;
  font-weight: 800; letter-spacing: -0.02em;
}
.pill span { font-size: 22px; line-height: 1; }
.pill small { font-size: 10px; font-weight: 600; opacity: 0.75; text-transform: uppercase; letter-spacing: 0.08em; }
.pill-tasks { background: rgba(45,212,191,0.12); color: var(--primary-2); }
.pill-cal { background: rgba(251,191,36,0.12); color: var(--warning); }

/* ===== Section Title ===== */
.section-title {
  font-size: 11px; font-weight: 700;
  padding: 20px 24px 10px;
  color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.12em;
}

/* ===== Filter Bar ===== */
.filter-bar {
  display: flex;
  gap: 10px;
  padding: 8px 20px 12px;
}
.filter-select {
  flex: 1;
  appearance: none;
  -webkit-appearance: none;
  background: var(--card);
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  color: var(--text);
  padding: 12px 38px 12px 18px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  outline: none;
  min-width: 0;
}
.filter-select:focus { border-color: var(--primary); }
.filter-select option { background: var(--card); color: var(--text); }
.filter-select.active {
  background-color: rgba(45,212,191,0.12);
  border-color: var(--primary);
  color: var(--primary-2);
}

/* ===== Task-State-Badges (auch nicht-fällig) ===== */
.task-card.not-due { opacity: 0.55; }
.task-card.not-due .task-checkbox { border-style: dashed; }
.next-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-size: 10px;
  font-weight: 700;
  background: var(--bg-elevated);
  color: var(--text-dim);
  margin-left: 4px;
}

/* ===== Recent / Undo Card ===== */
.recent-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}
.recent-card .recent-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(45,212,191,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.recent-info { flex: 1; min-width: 0; }
.recent-name { font-weight: 600; color: var(--text); }
.recent-meta { color: var(--text-dim); font-size: 11px; margin-top: 2px; }
.recent-undo {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
}
.recent-undo:hover { color: var(--danger); border-color: var(--danger); }
.recent-undo:active { transform: scale(0.94); }

/* ===== Due List ===== */
.due-list { padding: 0 16px; }

.task-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px 14px 14px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: opacity 0.4s, transform 0.4s;
}

.task-card.completing {
  opacity: 0;
  transform: scale(0.95) translateX(40px);
}

.task-checkbox {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  background: var(--bg-elevated);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: transparent;
  transition: all 0.2s;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.task-checkbox:active { transform: scale(0.9); }
.task-checkbox.checked {
  background: var(--gradient-primary);
  border-color: transparent;
  color: var(--primary-text);
  box-shadow: 0 0 24px var(--primary-glow);
}

.task-info { flex: 1; min-width: 0; }
.task-name { font-size: 15px; font-weight: 600; line-height: 1.25; }
.task-meta {
  font-size: 12px; color: var(--text-dim); margin-top: 3px;
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.task-room { color: var(--text-muted); font-weight: 600; }
.task-room .icon { margin-right: 2px; }

.freq-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.freq-weekly { background: rgba(45,212,191,0.15); color: var(--primary-2); }
.freq-monthly { background: rgba(99,102,241,0.18); color: #a5b4fc; }
.freq-yearly { background: rgba(168,85,247,0.18); color: #d8b4fe; }

.task-stats { text-align: right; font-size: 12px; color: var(--text-muted); font-feature-settings: 'tnum'; }
.task-cal { font-weight: 800; color: var(--warning); font-size: 14px; }
.task-min { color: var(--text-dim); }

.overdue-stripe {
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--gradient-primary);
}
.task-card.overdue .overdue-stripe { background: var(--gradient-warm); }
.task-card.very-overdue .overdue-stripe { background: var(--gradient-danger); }

.empty-state { text-align: center; padding: 60px 24px; color: var(--text-muted); }
.empty-state .icon { font-size: 56px; margin-bottom: 14px; }
.empty-state .title { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.empty-state .subtitle { font-size: 14px; color: var(--text-dim); }

/* ===== Rooms ===== */
.rooms-list { padding: 0 16px; }
.floor-group { margin-bottom: 20px; }
.floor-title {
  font-size: 11px; font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.12em;
  padding: 8px 4px;
}
.room-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.room-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
}
.room-card .room-info { flex: 1; }
.room-name { font-size: 16px; font-weight: 700; }
.room-sub { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* ===== Stats ===== */
.stats-page { padding: 0 20px 24px; }
.lb-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 14px;
}
.lb-card h3 {
  font-size: 13px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.lb-entry { display: flex; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--border); }
.lb-entry:last-child { border: none; }
.lb-rank {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--bg-elevated); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 13px; margin-right: 12px; color: var(--text-muted);
}
.lb-rank.first {
  background: var(--gradient-gold); color: #3a2400; border: none;
  box-shadow: 0 0 24px rgba(255,215,0,0.4);
  animation: gold-pulse 2.4s ease-in-out infinite;
}
@keyframes gold-pulse { 0%,100% { box-shadow: 0 0 24px rgba(255,215,0,0.4); } 50% { box-shadow: 0 0 36px rgba(255,215,0,0.7); } }
.lb-name { flex: 1; font-weight: 600; font-size: 14px; }
.lb-name.is-self { color: var(--primary-2); }
.lb-stats { text-align: right; font-size: 12px; color: var(--text-muted); font-feature-settings: 'tnum'; }
.lb-stats b { color: var(--text); display: block; font-size: 14px; }

/* ===== Chat ===== */
.chat-page {
  padding: 0 16px 16px;
  display: flex; flex-direction: column;
  height: calc(100dvh - 100px - 80px);
  min-height: 400px;
}
.chat-log {
  flex: 1;
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 10px;
  padding: 8px 4px 16px;
}
.chat-msg { display: flex; }
.chat-msg.msg-bot { justify-content: flex-start; }
.chat-msg.msg-user { justify-content: flex-end; }
.msg-bubble {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-wrap;
}
.msg-bot .msg-bubble { background: var(--card); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.msg-user .msg-bubble { background: var(--gradient-primary); color: var(--primary-text); border-bottom-right-radius: 4px; }
.msg-bubble em { color: var(--primary-2); font-style: normal; }
.chat-input-row {
  display: flex; align-items: center; gap: 8px;
  padding-top: 8px;
}
.chat-input-row input {
  flex: 1; padding: 14px 18px;
  background: var(--card); border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill); font-size: 14px; outline: none;
}
.chat-input-row input:focus { border-color: var(--primary); }
.chat-mic, .chat-send {
  width: 48px; height: 48px;
  border-radius: 50%; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 18px;
}
.chat-mic { background: var(--card); border: 1px solid var(--border-strong); color: var(--text); }
.chat-mic.recording { background: var(--gradient-danger); color: white; animation: pulse 1.5s infinite; }
.chat-send { background: var(--gradient-primary); color: var(--primary-text); box-shadow: 0 0 18px var(--primary-glow); }
.chat-typing { display: inline-block; }
.chat-typing span { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--text-muted); margin: 0 2px; animation: typing 1.2s infinite; }
.chat-typing span:nth-child(2) { animation-delay: 0.15s; }
.chat-typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing { 0%,60%,100% { opacity: 0.3; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }
@keyframes pulse {
  0%,100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(244,63,94,0.4); }
  50% { transform: scale(1.05); box-shadow: 0 0 0 20px rgba(244,63,94,0); }
}

/* ===== Profile ===== */
.profile-page { padding: 0 20px; }
.profile-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; margin-bottom: 16px;
}
.profile-card h3 {
  font-size: 13px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted); margin-bottom: 14px;
}
.profile-field { margin-bottom: 12px; }
.profile-field label {
  display: block; font-size: 12px; color: var(--text-dim);
  margin-bottom: 6px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.profile-field input {
  width: 100%; padding: 12px 14px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 15px; outline: none;
}

/* ===== Bottom Nav ===== */
.bottom-nav {
  position: fixed;
  bottom: 14px; left: 50%; transform: translateX(-50%);
  width: calc(100% - 28px); max-width: 440px;
  background: rgba(26, 32, 48, 0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  display: flex; justify-content: space-around;
  padding: 6px;
  padding-bottom: max(6px, env(safe-area-inset-bottom));
  z-index: 100;
  box-shadow: var(--shadow);
}
.nav-item {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  background: none; border: none; color: var(--text-dim);
  cursor: pointer; padding: 6px 4px;
  font-size: 10px; font-weight: 600;
  border-radius: var(--radius-pill); transition: all 0.2s;
}
.nav-item.active { color: var(--primary-text); background: var(--gradient-primary); }
.nav-item .nav-icon { font-size: 18px; }

/* ===== Toast ===== */
.toast {
  position: fixed; top: 24px; left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--card); border: 1px solid var(--border-strong);
  color: var(--text); padding: 14px 24px;
  border-radius: var(--radius-pill);
  font-size: 14px; font-weight: 600;
  z-index: 1000;
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
  max-width: 90%; text-align: center;
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--gradient-danger); color: white; border-color: transparent; }
.toast.success { background: var(--gradient-primary); color: var(--primary-text); border-color: transparent; }

.toast-action {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 10px 10px 18px;
}
.toast-action .toast-msg { font-weight: 700; }
.toast-action button {
  background: rgba(0,0,0,0.18);
  color: inherit;
  border: none;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 13px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: inherit;
}
.toast-action button:active { transform: scale(0.94); }

/* ===== Confetti ===== */
.confetti {
  position: fixed; pointer-events: none; z-index: 9999;
  border-radius: 2px;
  animation: confetti-fly 1.4s cubic-bezier(0.2,0.8,0.4,1) forwards;
  will-change: transform, opacity;
}
@keyframes confetti-fly {
  0% { transform: translate(0,0) rotate(0deg); opacity: 1; }
  100% { transform: translate(var(--dx), calc(var(--dy) + 400px)) rotate(var(--rot)); opacity: 0; }
}

/* ===== Pages ===== */
.page { display: none; animation: fadein 0.3s; }
.page.active { display: block; }
.main-app { display: none; }
.main-app.active { display: block; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } }

.hidden { display: none !important; }

@media (min-width: 768px) {
  .app { max-width: 520px; }
}