/* ============================================================
   Task Manager — Design tokens
   Palette:
     --ink:      #14181F  (near-black, structure/text)
     --paper:    #F6F5F2  (warm off-white background)
     --panel:    #FFFFFF  (card surface)
     --line:     #DEDAD2  (hairline borders)
     --accent:   #2F5D50  (deep pine — brand/action)
   Status colors (the signature system — every task always shows one):
     --overdue:  #C1443C  (rust red)
     --due:      #C98A2E  (amber)
     --notdue:   #3E7A5B  (moss green)
     --done:     #8A8578  (stone grey)
   Type: "Space Grotesk" for headings/labels (utility, technical),
         system sans for body/data (fast, reliable on any host).
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --ink: #14181F;
  --ink-soft: #4B5160;
  --paper: #F6F5F2;
  --panel: #FFFFFF;
  --line: #DEDAD2;
  --accent: #2F5D50;
  --accent-ink: #FFFFFF;
  --overdue: #C1443C;
  --overdue-bg: #FBEAE8;
  --due: #C98A2E;
  --due-bg: #FCF2E2;
  --notdue: #3E7A5B;
  --notdue-bg: #EAF3ED;
  --done: #8A8578;
  --done-bg: #F0EEE9;
  --radius: 10px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}
h1, h2, h3, .brand, label, th, .btn, .tab {
  font-family: 'Space Grotesk', -apple-system, sans-serif;
}
a { color: var(--accent); text-decoration: none; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--ink);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.brand {
  color: #fff;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.2px;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}
.navlinks {
  display: flex;
  gap: 18px;
  align-items: center;
}
.navlinks a {
  color: #D9DCE3;
  font-size: 0.92rem;
  font-weight: 500;
  white-space: nowrap;
}
.navlinks a:hover { color: #fff; }

@media (max-width: 800px) {
  .menu-toggle { display: block; }
  .navlinks {
    display: none;
    position: absolute;
    top: 56px; left: 0; right: 0;
    background: var(--ink);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    gap: 4px;
  }
  .navlinks.open { display: flex; }
  .navlinks a { padding: 10px 4px; border-bottom: 1px solid #262c38; }
}

/* ---------- Layout ---------- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}
.page-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}
.page-head h1 { margin: 0; font-size: 1.5rem; }
.muted { color: var(--ink-soft); font-size: 0.9rem; }

/* ---------- Cards / panels ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 18px;
}

/* ---------- Status badges (the signature element) ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; }
.badge.overdue { background: var(--overdue-bg); color: var(--overdue); }
.badge.overdue::before { background: var(--overdue); }
.badge.due { background: var(--due-bg); color: var(--due); }
.badge.due::before { background: var(--due); }
.badge.not_due { background: var(--notdue-bg); color: var(--notdue); }
.badge.not_due::before { background: var(--notdue); }
.badge.completed { background: var(--done-bg); color: var(--done); }
.badge.completed::before { background: var(--done); }

/* ---------- Tabs (status filter) ---------- */
.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.tab {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.tab.active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- Task list ---------- */
.task-list { display: flex; flex-direction: column; gap: 10px; }
.task-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.task-card.overdue { border-left-color: var(--overdue); }
.task-card.due { border-left-color: var(--due); }
.task-card.not_due { border-left-color: var(--notdue); }
.task-card.completed { border-left-color: var(--done); opacity: 0.85; }

.task-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.task-desc { font-weight: 600; font-size: 1rem; }
.task-meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 4px;
}
.task-actions { display: flex; gap: 10px; margin-top: 10px; }

/* ---------- Forms ---------- */
.form-row { margin-bottom: 14px; }
label { display: block; font-size: 0.82rem; font-weight: 600; margin-bottom: 5px; color: var(--ink-soft); }
input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
textarea { min-height: 90px; resize: vertical; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .grid-2 { grid-template-columns: 1fr; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  text-align: center;
}
.btn:hover { background: #244a40; }
.btn.secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.secondary:hover { background: #EFEDE8; }
.btn.danger { background: var(--overdue); }
.btn.small { padding: 6px 12px; font-size: 0.82rem; }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); font-size: 0.92rem; }
th { color: var(--ink-soft); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.4px; }

/* ---------- Login ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
}
.login-box {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 32px 28px;
  width: 100%;
  max-width: 380px;
}
.login-box h1 { text-align: center; margin-top: 0; font-size: 1.3rem; }

/* ---------- Timeline ---------- */
.timeline-item { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.timeline-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-top: 6px; flex-shrink: 0; }
.timeline-text { font-size: 0.92rem; }
.timeline-time { color: var(--ink-soft); font-size: 0.8rem; }

.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 0.9rem; }
.alert.error { background: var(--overdue-bg); color: var(--overdue); }
.alert.success { background: var(--notdue-bg); color: var(--notdue); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }