/* ==========================================================
   namu.farm — Scandinavian organic-flow silviculture record
   palette: birch cream, pine dark, moss, bark, winter gray,
            berry muted, snow white
   typography: IBM Plex Mono / Sans / Noto Sans KR
   ========================================================== */

:root {
    --c-birch: #F0EDE4;        /* primary background */
    --c-pine: #2A3828;         /* primary text */
    --c-moss: #7A8A6A;         /* secondary text, illustrations */
    --c-bark: #A08868;         /* accent, wood tone */
    --c-winter: #C8C4BA;       /* borders, structural lines */
    --c-berry: #9A6878;        /* tertiary accent, seasonal */
    --c-snow: #FAFAF5;         /* card backgrounds */

    --f-mono: 'IBM Plex Mono', ui-monospace, monospace;
    --f-sans: 'IBM Plex Sans', system-ui, sans-serif;
    --f-kr:   'Noto Sans KR', var(--f-sans);

    --gap-y: clamp(56px, 9vw, 120px);
    --rule: 1px solid var(--c-winter);
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--c-birch);
    color: var(--c-pine);
    font-family: var(--f-sans);
    font-weight: 400;
    font-size: clamp(15px, 1vw, 17px);
    line-height: 1.85;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* shared headings */
h1, h2, h3 {
    font-family: var(--f-mono);
    font-weight: 600;
    color: var(--c-pine);
    letter-spacing: 0;
}

/* ============================================
   MORNING FIELD (hero, 100vh)
   ============================================ */
.field--morning {
    min-height: 100vh;
    position: relative;
    padding: clamp(56px, 8vw, 96px) clamp(20px, 6vw, 80px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}

.field__mark {
    margin-left: clamp(0px, 4vw, 64px);
    max-width: 60ch;
}

.field__title {
    font-family: var(--f-mono);
    font-weight: 600;
    font-size: clamp(28px, 4.2vw, 56px);
    line-height: 1.05;
    color: var(--c-pine);
}

.field__sub {
    font-family: var(--f-mono);
    font-size: 13px;
    color: var(--c-moss);
    margin-top: 14px;
    letter-spacing: 0.02em;
}

.field__meta {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-bark);
    margin-top: 6px;
    letter-spacing: 0.04em;
    text-transform: lowercase;
}

.field__rule {
    height: 1px;
    width: 28%;
    background: var(--c-winter);
    margin: clamp(40px, 6vw, 80px) 0 0 clamp(0px, 4vw, 64px);
    transition: width 0.6s ease;
}

.field__tree {
    position: absolute;
    right: clamp(20px, 6vw, 80px);
    bottom: clamp(20px, 4vw, 56px);
    width: clamp(140px, 22vw, 240px);
    height: auto;
    transform-origin: 50% 100%;
    animation: sway 6s ease-in-out infinite;
}

.field__tree .tree-svg { width: 100%; height: auto; display: block; }

.field__caption {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-moss);
    margin-left: clamp(0px, 4vw, 64px);
    letter-spacing: 0.05em;
    text-transform: lowercase;
}

@keyframes sway {
    0%, 100% { transform: rotate(-0.5deg); }
    50%      { transform: rotate(0.5deg); }
}

/* ============================================
   RECORDS (species flow, organic)
   ============================================ */
.records {
    padding: var(--gap-y) clamp(20px, 6vw, 80px);
    position: relative;
}

.records__head {
    margin-bottom: clamp(40px, 6vw, 80px);
    margin-left: clamp(0px, 4vw, 64px);
    max-width: 56ch;
}

.records__index {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-bark);
    letter-spacing: 0.1em;
    margin-bottom: 10px;
}

.records__heading {
    font-size: clamp(20px, 2.5vw, 36px);
    margin-bottom: 18px;
}

.records__lede {
    font-size: clamp(15px, 1vw, 17px);
    color: var(--c-pine);
    max-width: 50ch;
}

/* the organic-flow record block */
.record {
    --indent: 20%;
    margin-left: var(--indent);
    margin-right: clamp(20px, 6vw, 80px);
    margin-bottom: clamp(56px, 8vw, 110px);
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: clamp(20px, 3vw, 44px);
    max-width: 70ch;
    position: relative;
}

.record:hover .record__plate { transform: rotate(0.5deg); }

.record__plate {
    width: 120px;
    height: 120px;
    background: var(--c-snow);
    border: var(--rule);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.4s ease;
}

.record__plate .leaf-svg {
    width: 88px;
    height: 88px;
    display: block;
}

.record__tag {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-bark);
    letter-spacing: 0.06em;
    text-transform: lowercase;
    margin-bottom: 6px;
}

.record__name {
    font-size: 18px;
    margin-bottom: 4px;
}

.record__korean {
    font-family: var(--f-kr);
    font-size: 13px;
    color: var(--c-moss);
    margin-bottom: 14px;
}

.record__note {
    font-size: 15px;
    color: var(--c-pine);
    margin-bottom: 18px;
    max-width: 50ch;
}

.record__data {
    display: grid;
    grid-template-columns: repeat(3, max-content);
    column-gap: clamp(20px, 3vw, 44px);
    row-gap: 4px;
    border-top: var(--rule);
    padding-top: 12px;
    font-family: var(--f-mono);
    font-size: 12px;
}

.record__data div { display: flex; flex-direction: column; }
.record__data dt {
    color: var(--c-moss);
    text-transform: lowercase;
    letter-spacing: 0.04em;
    font-size: 10px;
    margin-bottom: 2px;
}
.record__data dd { color: var(--c-pine); }

/* ============================================
   INTERLUDE (decorative botanical band)
   ============================================ */
.interlude {
    width: 100%;
    padding: clamp(20px, 4vw, 60px) clamp(20px, 6vw, 80px);
    display: flex;
    justify-content: center;
}
.interlude__svg {
    width: 100%;
    max-width: 1200px;
    height: 90px;
    display: block;
}

/* ============================================
   SEASONAL RHYTHM (horizontal band)
   ============================================ */
.seasons {
    padding: var(--gap-y) 0;
    background: var(--c-snow);
    border-top: var(--rule);
    border-bottom: var(--rule);
}

.seasons__head {
    padding: 0 clamp(20px, 6vw, 80px);
    margin-bottom: clamp(32px, 5vw, 56px);
    margin-left: clamp(0px, 4vw, 64px);
    max-width: 56ch;
}

.seasons__index {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-bark);
    letter-spacing: 0.1em;
    margin-bottom: 10px;
}
.seasons__heading {
    font-size: clamp(20px, 2.5vw, 36px);
    margin-bottom: 14px;
}
.seasons__lede {
    font-size: clamp(15px, 1vw, 17px);
    color: var(--c-pine);
    max-width: 56ch;
}

.seasons__band {
    display: flex;
    gap: clamp(16px, 2vw, 28px);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: clamp(20px, 3vw, 32px) clamp(20px, 6vw, 80px);
    scroll-padding-left: clamp(20px, 6vw, 80px);
    scrollbar-width: thin;
    scrollbar-color: var(--c-winter) transparent;
    cursor: grab;
}
.seasons__band:active { cursor: grabbing; }
.seasons__band::-webkit-scrollbar { height: 6px; }
.seasons__band::-webkit-scrollbar-track { background: transparent; }
.seasons__band::-webkit-scrollbar-thumb { background: var(--c-winter); border-radius: 3px; }

.season {
    flex: 0 0 clamp(280px, 36vw, 420px);
    scroll-snap-align: start;
    background: var(--c-birch);
    border: var(--rule);
    padding: clamp(24px, 3vw, 36px);
    min-height: 360px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: filter 0.18s steps(1);
}

.season--spring { border-color: rgba(122,138,106,0.5); }
.season--summer { border-color: rgba(160,136,104,0.5); }
.season--autumn { border-color: rgba(154,104,120,0.5); }
.season--winter { border-color: rgba(200,196,186,0.9); }

.season__index {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-bark);
    letter-spacing: 0.1em;
}

.season__name {
    font-size: 18px;
}

.season__date {
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-moss);
    margin-bottom: 12px;
    letter-spacing: 0.02em;
}

.season__obs {
    font-size: 14.5px;
    color: var(--c-pine);
    margin-bottom: 16px;
}

.season__tasks {
    list-style: none;
    border-top: var(--rule);
    padding-top: 12px;
    margin-top: auto;
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-pine);
}
.season__tasks li {
    padding: 4px 0;
    border-bottom: 1px solid rgba(200,196,186,0.5);
}
.season__tasks li:last-child { border-bottom: none; }
.season__tasks li::before {
    content: "·";
    color: var(--c-bark);
    margin-right: 8px;
}

/* glitch state — applied briefly via JS */
.season.is-glitch { filter: hue-rotate(180deg); }

.seasons__nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 16px;
    padding: clamp(12px, 2vw, 20px) clamp(20px, 6vw, 80px) 0;
}

.seasons__btn {
    font-family: var(--f-mono);
    font-size: 16px;
    background: transparent;
    border: var(--rule);
    color: var(--c-pine);
    padding: 6px 14px;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease;
}
.seasons__btn:hover {
    color: var(--c-moss);
    border-color: var(--c-moss);
}
.seasons__btn:focus-visible {
    outline: 1px solid var(--c-pine);
    outline-offset: 2px;
}

.seasons__progress {
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-moss);
    letter-spacing: 0.05em;
    min-width: 60px;
    text-align: center;
}

/* ============================================
   FIELD NOTES (organic flow, two-column-ish)
   ============================================ */
.notes {
    padding: var(--gap-y) clamp(20px, 6vw, 80px);
}
.notes__head {
    margin-bottom: clamp(40px, 6vw, 72px);
    margin-left: clamp(0px, 4vw, 64px);
    max-width: 56ch;
}
.notes__index {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-bark);
    letter-spacing: 0.1em;
    margin-bottom: 10px;
}
.notes__heading {
    font-size: clamp(20px, 2.5vw, 36px);
    margin-bottom: 14px;
}
.notes__lede {
    font-size: clamp(15px, 1vw, 17px);
    color: var(--c-pine);
    max-width: 50ch;
}

.notes__flow {
    display: flex;
    flex-direction: column;
    gap: clamp(36px, 5vw, 64px);
}

.note {
    --indent: 14%;
    margin-left: var(--indent);
    max-width: 52ch;
    border-left: var(--rule);
    padding-left: clamp(16px, 2vw, 28px);
    transition: border-color 0.4s ease;
}
.note:hover { border-left-color: var(--c-moss); }

.note__date {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-bark);
    letter-spacing: 0.06em;
    margin-bottom: 6px;
    text-transform: lowercase;
}

.note__text {
    font-size: 15.5px;
    color: var(--c-pine);
    line-height: 1.85;
}

/* ============================================
   CLOSING FIELD
   ============================================ */
.closing {
    padding: var(--gap-y) clamp(20px, 6vw, 80px) clamp(56px, 8vw, 96px);
    text-align: left;
    margin-left: clamp(0px, 4vw, 64px);
    max-width: 70ch;
}

.closing__rule {
    width: 22%;
    height: 1px;
    background: var(--c-winter);
    margin-bottom: clamp(28px, 4vw, 48px);
    transition: width 0.6s ease;
}
.closing:hover .closing__rule { width: 32%; }

.closing__line {
    font-family: var(--f-mono);
    font-weight: 600;
    font-size: clamp(20px, 2.4vw, 32px);
    color: var(--c-pine);
    margin-bottom: 10px;
}

.closing__sub {
    font-family: var(--f-mono);
    font-size: 13px;
    color: var(--c-moss);
    margin-bottom: 18px;
}

.closing__meta {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-bark);
    letter-spacing: 0.04em;
    text-transform: lowercase;
    margin-bottom: 32px;
}

.closing__sprig {
    width: clamp(140px, 22vw, 220px);
}
.closing__sprig .sprig-svg { width: 100%; height: auto; display: block; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 760px) {
    .field--morning { padding: 40px 20px; }
    .field__mark { margin-left: 0; }
    .field__rule { margin-left: 0; width: 40%; }
    .field__tree { width: 140px; right: 16px; bottom: 24px; }
    .field__caption { margin-left: 0; }

    .records, .notes, .closing { padding-left: 20px; padding-right: 20px; }
    .records__head, .notes__head, .closing { margin-left: 0; }

    .record {
        --indent: 0% !important;
        grid-template-columns: 1fr;
        margin-right: 0;
    }
    .record__plate { width: 96px; height: 96px; }
    .record__plate .leaf-svg { width: 72px; height: 72px; }

    .note { --indent: 0% !important; }

    .seasons__head { padding-left: 20px; padding-right: 20px; margin-left: 0; }
    .seasons__band { padding-left: 20px; padding-right: 20px; scroll-padding-left: 20px; }
    .seasons__nav { padding-left: 20px; padding-right: 20px; }
    .season { flex: 0 0 84vw; min-height: 320px; }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
    .field__tree { animation: none; }
    .season.is-glitch { filter: none; }
    html { scroll-behavior: auto; }
}