/* ==========================================================================
   Daybook — clean notes & tasks
   A calm, modern take on the old Notes & Todo page.
   ========================================================================== */

:root {
    --bg: #f6f7f9;
    --surface: #ffffff;
    --surface-2: #f0f2f5;
    --border: #e2e5ea;
    --text: #1a1d24;
    --text-soft: #626875;
    --text-faint: #99a0ad;
    --accent: #4f46e5;
    --accent-soft: #eef0fe;
    --accent-ink: #ffffff;
    --danger: #e5484d;
    --done: #12a150;
    --radius: 14px;
    --radius-sm: 9px;
    --shadow: 0 1px 2px rgba(16, 20, 30, 0.04), 0 8px 24px rgba(16, 20, 30, 0.06);
    --ring: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
    --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

body.dark {
    --bg: #0d0f14;
    --surface: #161a22;
    --surface-2: #1d222c;
    --border: #262c38;
    --text: #eef1f6;
    --text-soft: #a4adbd;
    --text-faint: #6b7484;
    --accent: #8b8bff;
    --accent-soft: #21243a;
    --accent-ink: #0d0f14;
    --danger: #ff6169;
    --done: #3ad07f;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px rgba(0, 0, 0, 0.35);
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    line-height: 1.55;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    transition: background .3s ease, color .3s ease;
}

.wrap {
    width: min(100% - 2.5rem, 1080px);
    margin: 0 auto;
    padding: clamp(1.25rem, 3vw, 2.5rem) 0 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ---- Top bar ---- */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: .85rem;
}

.brand-mark {
    font-size: 1.9rem;
    line-height: 1;
    filter: drop-shadow(0 4px 10px rgba(79, 70, 229, .25));
}

.brand h1 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.tagline {
    color: var(--text-faint);
    font-size: .85rem;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: .6rem;
}

/* ---- Buttons ---- */
.btn {
    font-family: inherit;
    font-size: .9rem;
    font-weight: 600;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: .55rem .95rem;
    cursor: pointer;
    transition: transform .12s ease, background .2s ease, border-color .2s ease, color .2s ease;
    white-space: nowrap;
}

.btn:active {
    transform: translateY(1px);
}

.btn-solid {
    background: var(--accent);
    color: var(--accent-ink);
}

.btn-solid:hover {
    filter: brightness(1.07);
}

.btn-ghost {
    background: var(--surface);
    color: var(--text-soft);
    border-color: var(--border);
    box-shadow: var(--shadow);
}

.btn-ghost:hover {
    color: var(--text);
    border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.icon-btn {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    font-size: 1.1rem;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: transform .15s ease, border-color .2s ease;
}

.icon-btn:hover {
    transform: rotate(-12deg);
    border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}

:focus-visible {
    outline: none;
    box-shadow: var(--ring);
    border-radius: var(--radius-sm);
}

/* ---- Layout grid ---- */
.grid {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 1.25rem;
    align-items: start;
}

@media (max-width: 760px) {
    .grid {
        grid-template-columns: 1fr;
    }
}

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
}

.panel-head h2 {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.panel-tools {
    display: flex;
    align-items: center;
    gap: .6rem;
}

.meta {
    font-size: .78rem;
    color: var(--text-faint);
    font-variant-numeric: tabular-nums;
}

.chip {
    font-family: inherit;
    font-size: .76rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-soft);
    border: 0;
    border-radius: 999px;
    padding: .3rem .7rem;
    cursor: pointer;
    transition: filter .15s ease;
}

.chip:hover {
    filter: brightness(.97);
}

/* ---- Notes ---- */
.notes-area {
    font-family: inherit;
    font-size: .98rem;
    line-height: 1.7;
    color: var(--text);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .9rem 1rem;
    width: 100%;
    min-height: 340px;
    resize: vertical;
    transition: border-color .2s ease, box-shadow .2s ease;
}

.notes-area::placeholder {
    color: var(--text-faint);
}

.notes-area:focus {
    outline: none;
    border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
    box-shadow: var(--ring);
}

.last-day {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    overflow: hidden;
}

.last-day summary {
    cursor: pointer;
    padding: .65rem .9rem;
    font-size: .84rem;
    font-weight: 600;
    color: var(--text-soft);
    user-select: none;
    list-style: none;
}

.last-day summary::-webkit-details-marker {
    display: none;
}

.last-day summary::before {
    content: "▸";
    display: inline-block;
    margin-right: .5rem;
    color: var(--text-faint);
    transition: transform .2s ease;
}

.last-day[open] summary::before {
    transform: rotate(90deg);
}

.last-day-text {
    font-family: var(--mono);
    font-size: .82rem;
    line-height: 1.6;
    color: var(--text-soft);
    padding: 0 .9rem .9rem;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 260px;
    overflow: auto;
}

/* ---- Tasks ---- */
.task-input {
    display: flex;
    gap: .55rem;
}

.task-input input {
    flex: 1;
    font-family: inherit;
    font-size: .92rem;
    color: var(--text);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .6rem .8rem;
    transition: border-color .2s ease, box-shadow .2s ease;
}

.task-input input::placeholder {
    color: var(--text-faint);
}

.task-input input:focus {
    outline: none;
    border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
    box-shadow: var(--ring);
}

.task-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: .35rem;
}

.task {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .55rem .35rem .55rem .55rem;
    border-radius: var(--radius-sm);
    transition: background .15s ease;
    animation: slideIn .22s ease;
}

.task:hover {
    background: var(--surface-2);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

.task .check {
    appearance: none;
    -webkit-appearance: none;
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-faint);
    border-radius: 6px;
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: border-color .15s ease, background .15s ease;
}

.task .check:checked {
    background: var(--done);
    border-color: var(--done);
}

.task .check:checked::after {
    content: "✓";
    color: #fff;
    font-size: .8rem;
    font-weight: 700;
}

.task .label {
    flex: 1;
    font-size: .92rem;
    cursor: pointer;
    word-break: break-word;
    transition: color .15s ease, opacity .15s ease;
}

.task.done .label {
    text-decoration: line-through;
    color: var(--text-faint);
}

.task .del {
    flex: 0 0 auto;
    border: 0;
    background: transparent;
    color: var(--text-faint);
    font-size: 1.05rem;
    line-height: 1;
    width: 28px;
    height: 28px;
    border-radius: 7px;
    cursor: pointer;
    opacity: 0;
    transition: opacity .15s ease, color .15s ease, background .15s ease;
}

.task:hover .del,
.task:focus-within .del {
    opacity: 1;
}

.task .del:hover {
    color: var(--danger);
    background: color-mix(in srgb, var(--danger) 12%, transparent);
}

.empty {
    text-align: center;
    color: var(--text-faint);
    font-size: .88rem;
    padding: 1rem 0;
}

/* ---- Footer ---- */
.footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    padding-top: .5rem;
    font-size: .82rem;
    color: var(--text-faint);
}

.back {
    color: var(--text-soft);
    text-decoration: none;
    font-weight: 600;
    transition: color .15s ease;
}

.back:hover {
    color: var(--accent);
}

/* ---- Toast ---- */
.toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translate(-50%, 20px);
    background: var(--text);
    color: var(--bg);
    font-size: .85rem;
    font-weight: 600;
    padding: .6rem 1.05rem;
    border-radius: 999px;
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease;
    z-index: 50;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}