:root {
  --ocean-deep: #0A2A47; --ocean: #3C71C9; --sand: #E0BA8B; --sand-deep: #B98B54;
  --shore: #F4EEE5; --foam: #FCFAF6; --ink: #0A2231; --ink-soft: #40606F;
  --mist: #7C93A1; --rule: #DED4C6; --ok: #2E6B4F; --danger: #8C3A2A;
  --display: "Avenir Next", "Futura", "Segoe UI", system-ui, sans-serif;
  --body: "Charter", "Iowan Old Style", Georgia, serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--shore); color: var(--ink);
       font-family: var(--body); font-size: 16px; line-height: 1.55;
       -webkit-font-smoothing: antialiased; }
a { color: var(--ocean); }
.label { font-family: var(--mono); font-size: .66rem; letter-spacing: .16em;
         text-transform: uppercase; }

/* top bar */
.bar { background: var(--ocean-deep); color: #CFE0EE;
       padding: .9rem clamp(1rem,4vw,2.5rem); display: flex; flex-wrap: wrap;
       gap: .75rem 1.5rem; align-items: center; justify-content: space-between; }
.bar .brand { display: flex; align-items: center; gap: .7rem; }
.bar img { height: 26px; width: auto; display: block; }
.bar .who { font-family: var(--mono); font-size: .72rem; color: var(--sand); }
.bar a { color: #CFE0EE; text-decoration: none; font-family: var(--mono); font-size: .72rem;
         letter-spacing: .1em; text-transform: uppercase; }
.bar a:hover { color: #fff; }

/* tabs */
.tabs { background: var(--foam); border-bottom: 1px solid var(--rule);
        padding: 0 clamp(1rem,4vw,2.5rem); display: flex; gap: .25rem; overflow-x: auto; }
.tabs a { font-family: var(--display); font-size: .92rem; font-weight: 600;
          padding: .85rem 1.1rem; text-decoration: none; color: var(--ink-soft);
          border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ocean); }
.tabs a:hover { color: var(--ink); }

.wrap { max-width: 62rem; margin: 0 auto; padding: clamp(1.5rem,4vw,2.75rem) clamp(1rem,4vw,2.5rem) 5rem; }

h1 { font-family: var(--display); font-size: 1.5rem; font-weight: 600;
     letter-spacing: -.015em; margin: 0 0 .3rem; }
.sub { color: var(--ink-soft); margin: 0 0 1.75rem; font-size: .95rem; }

/* flash */
.flash { padding: .8rem 1rem; border-radius: 3px; margin-bottom: 1.25rem; font-size: .92rem; }
.flash-ok  { background: #E4EFE9; border-left: 3px solid var(--ok); color: #1E4A36; }
.flash-err { background: #F7E9E4; border-left: 3px solid var(--danger); color: var(--danger); }

/* add form */
.card { background: var(--foam); border: 1px solid var(--rule); border-radius: 4px;
        padding: 1.25rem; margin-bottom: 1.75rem; }
.row { display: flex; flex-wrap: wrap; gap: .6rem; }
.row > * { min-width: 0; }
input[type=text], input[type=password], select, textarea {
  font: inherit; font-size: .95rem; padding: .6rem .7rem; border: 1px solid var(--rule);
  border-radius: 3px; background: #fff; color: var(--ink); }
input[type=text]:focus, input[type=password]:focus, select:focus, textarea:focus {
  outline: 2px solid var(--ocean); outline-offset: 1px; border-color: var(--ocean); }
.grow { flex: 1 1 18rem; }
button { font-family: var(--display); font-size: .92rem; font-weight: 600; cursor: pointer;
         padding: .62rem 1.1rem; border: 0; border-radius: 3px;
         background: var(--ocean-deep); color: var(--foam); }
button:hover { background: var(--ocean); }
button:focus-visible { outline: 2px solid var(--ocean); outline-offset: 2px; }
.btn-quiet { background: transparent; color: var(--ink-soft); padding: .3rem .5rem;
             font-family: var(--mono); font-size: .68rem; letter-spacing: .08em;
             text-transform: uppercase; }
.btn-quiet:hover { background: transparent; color: var(--ocean); }
.btn-danger:hover { color: var(--danger); }

/* filters */
.filters { display: flex; gap: .4rem; margin-bottom: 1rem; flex-wrap: wrap; }
.filters a { font-family: var(--mono); font-size: .68rem; letter-spacing: .1em;
             text-transform: uppercase; text-decoration: none; color: var(--ink-soft);
             padding: .35rem .7rem; border: 1px solid var(--rule); border-radius: 99px; }
.filters a[aria-current="true"] { background: var(--ocean-deep); color: var(--foam);
                                  border-color: var(--ocean-deep); }

/* task list */
.tasks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.task { display: flex; gap: .9rem; align-items: flex-start; padding: .95rem .25rem;
        border-bottom: 1px solid var(--rule); }
.task:first-child { border-top: 1px solid var(--rule); }
.task form.tick { margin: 0; display: flex; }
.tick button { background: transparent; border: 1.5px solid var(--mist); width: 20px; height: 20px;
               border-radius: 50%; padding: 0; margin-top: .28rem; flex: 0 0 auto; }
.tick button:hover { border-color: var(--ok); background: transparent; }
.done .tick button { background: var(--ok); border-color: var(--ok); color: #fff;
                     font-size: .7rem; line-height: 1; }
.task-body { flex: 1 1 auto; min-width: 0; }
.task-title { font-family: var(--display); font-weight: 600; font-size: 1rem; word-wrap: break-word; }
.done .task-title { text-decoration: line-through; color: var(--mist); }
.task-notes { font-size: .9rem; color: var(--ink-soft); margin: .2rem 0 0; word-wrap: break-word; }
.meta { font-family: var(--mono); font-size: .66rem; letter-spacing: .06em; color: var(--mist);
        margin-top: .35rem; display: flex; flex-wrap: wrap; gap: .3rem .9rem; }
.pill { color: var(--sand-deep); }
.task-actions { display: flex; gap: .2rem; align-items: center; flex: 0 0 auto; }
.empty { padding: 2.5rem 1rem; text-align: center; color: var(--mist); font-style: italic; }

/* login */
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 2rem 1rem;
              background: linear-gradient(to bottom, var(--ocean-deep) 0 45.8%, var(--shore) 45.8% 100%); }
.login-card { width: 100%; max-width: 22rem; background: var(--foam);
              border: 1px solid var(--rule); border-radius: 4px; padding: 1.75rem;
              box-shadow: 0 18px 40px rgba(10,42,71,.18); }
.login-card img { display: block; width: 92px; margin: 0 auto 1.25rem; }
.login-card h1 { text-align: center; font-size: 1.15rem; margin-bottom: 1.25rem; }
.field { display: flex; flex-direction: column; gap: .3rem; margin-bottom: .9rem; }
.field label { font-family: var(--mono); font-size: .64rem; letter-spacing: .14em;
               text-transform: uppercase; color: var(--mist); }
.login-card button { width: 100%; margin-top: .35rem; }
.login-foot { text-align: center; margin-top: 1rem; font-size: .78rem; color: var(--mist); }