/* =========================================================
   yous.dev — quiet personal site
   Light · editorial · calm green · field-notes
   Sections:
     1. Tokens
     2. Reset & base
     3. Typography
     4. Layout primitives
     5. Masthead / navigation
     6. Footer
     7. Home (hero)
     8. Route motif
     9. Blog
    10. Capabilities (constellation)
    11. Work (field notes)
    12. Contact
    13. Motion & responsive
   ========================================================= */

/* 1. Tokens ----------------------------------------------- */
:root {
    /* paper */
    --paper:       #f6f4ee;
    --paper-deep:  #efece3;
    --paper-card:  #fbfaf5;

    /* ink */
    --ink:    #20201d;
    --muted:  #5d5b52;
    --faint:  #6b6960;
    --line:   rgba(32, 32, 29, 0.13);
    --line-soft: rgba(32, 32, 29, 0.07);

    /* calm green — nature, movement, low-emission */
    --green:      #3f6b53;
    --green-deep: #2d4f3b;
    --green-soft: #e7efe6;

    /* type */
    --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
    --mono:  'Space Mono', ui-monospace, 'SFMono-Regular', 'JetBrains Mono', monospace;

    /* rhythm */
    --pad: clamp(1.25rem, 5vw, 3rem);
    --measure: 64ch;
}

/* 2. Reset & base ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
    margin: 0;
    min-height: 100vh;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--serif);
    font-size: clamp(1.02rem, 0.97rem + 0.25vw, 1.18rem);
    line-height: 1.7;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
}

::selection {
    background: #e8e2d4;
    color: var(--ink);
}

/* skip link */
.skip {
    position: absolute;
    left: -999px;
    top: 0;
    background: var(--ink);
    color: var(--paper);
    padding: 0.6rem 1rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    z-index: 10;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

/* 3. Typography ------------------------------------------- */
h1, h2, h3 {
    font-weight: 500;
    line-height: 1.15;
    letter-spacing: -0.01em;
    margin: 0;
}

p { margin: 0 0 1.1rem; }
p:last-child { margin-bottom: 0; }

a {
    color: var(--green);
    text-decoration: none;
    text-underline-offset: 0.18em;
    text-decoration-thickness: 1px;
    transition: color 0.18s ease;
}
a:hover { color: var(--green-deep); text-decoration: underline; }
a:focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 3px;
    border-radius: 2px;
}

.mono {
    font-family: var(--mono);
    font-size: 0.74rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--faint);
}

/* 4. Layout primitives ------------------------------------ */
.wrap {
    width: 100%;
    max-width: 780px;
    margin: 0 auto;
    padding: 0 var(--pad);
}

.page {
    flex: 1 0 auto;
    padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(3rem, 8vw, 6rem);
}

.lede {
    max-width: var(--measure);
    color: var(--muted);
    font-size: 1.05em;
}

/* page header block (inner pages) */
.page-head { margin-bottom: clamp(2.2rem, 6vw, 3.6rem); }
.page-head .mono { display: block; margin-bottom: 0.9rem; color: var(--green); }
.page-head h1 {
    font-size: clamp(2rem, 1.4rem + 2.6vw, 3rem);
    margin-bottom: 0.9rem;
}

hr.rule {
    border: 0;
    border-top: 1px solid var(--line);
    margin: clamp(2rem, 5vw, 3rem) 0;
}

/* 5. Masthead / navigation -------------------------------- */
.masthead {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem 2rem;
    flex-wrap: wrap;
    padding: clamp(1.1rem, 3vw, 1.8rem) 0;
    border-bottom: 1px solid var(--line-soft);
}

.wordmark {
    font-family: var(--mono);
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    color: var(--ink);
    font-weight: 700;
}
.wordmark:hover { color: var(--green); text-decoration: none; }

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.9rem, 3vw, 1.6rem);
    font-family: var(--mono);
    font-size: 0.74rem;
    letter-spacing: 0.12em;
    text-transform: lowercase;
}
.nav a { color: var(--muted); }
.nav a:hover { color: var(--green); text-decoration: none; }
.nav a[aria-current="page"] {
    color: var(--ink);
    text-decoration: underline;
    text-decoration-color: var(--green);
    text-underline-offset: 0.3em;
}

/* 6. Footer ----------------------------------------------- */
.site-foot {
    flex-shrink: 0;
    border-top: 1px solid var(--line-soft);
    padding: clamp(1.6rem, 4vw, 2.4rem) 0;
    margin-top: auto;
}
.site-foot .wrap {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.6rem 1.5rem;
    flex-wrap: wrap;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--faint);
}
.site-foot a { color: var(--faint); }
.site-foot a:hover { color: var(--green); text-decoration: none; }

/* 7. Home (hero) ------------------------------------------ */
.home {
    min-height: 100vh;
    min-height: 100svh;
    display: grid;
    grid-template-rows: 1fr auto;
    position: relative;
    overflow: hidden;
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--pad);
    gap: 1.1rem;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(3.2rem, 1.5rem + 11vw, 8rem);
    letter-spacing: -0.035em;
    line-height: 0.95;
    margin: 0;
}
.hero h1 .dot { color: var(--green); }

.manifesto {
    font-family: var(--mono);
    font-size: clamp(0.82rem, 0.74rem + 0.4vw, 1rem);
    letter-spacing: 0.04em;
    text-transform: none;
    color: var(--muted);
    margin: 0;
    max-width: 32ch;
}

.subtitle {
    max-width: 44ch;
    color: var(--faint);
    font-size: 0.95rem;
    margin: 0;
}

/* hero nav — quiet, revealed on interaction */
.hero-nav {
    margin-top: clamp(1.6rem, 5vw, 3rem);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem clamp(1.1rem, 4vw, 2rem);
    font-family: var(--mono);
    font-size: 0.76rem;
    letter-spacing: 0.14em;
    text-transform: lowercase;
    opacity: 0;
    animation: settle 1.1s 0.5s ease forwards;
}
@media (prefers-reduced-motion: reduce) { .hero-nav { opacity: 1; animation: none; } }

.hero-nav a {
    color: var(--faint);
    position: relative;
    padding-bottom: 0.2em;
}
.hero-nav a::after {
    content: "";
    position: absolute;
    left: 0; right: 100%;
    bottom: 0;
    height: 1px;
    background: var(--green);
    transition: right 0.25s ease;
}
.hero-nav a:hover,
.hero-nav a:focus-visible { color: var(--green-deep); text-decoration: none; }
.hero-nav a:hover::after,
.hero-nav a:focus-visible::after { right: 0; }

@keyframes settle {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* 8. Route motif (bicycle path / quiet map) --------------- */
/* a wandering line anchored to the bottom band of the hero, so it sits
   in empty space below the text on every viewport (desktop and mobile) */
.route {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: clamp(130px, 24vh, 260px);
    pointer-events: none;
    z-index: 0;
    color: var(--green);
    opacity: 0.5;
}
.route path { stroke: currentColor; }
.route .node { fill: var(--green); }

/* 9. Blog ------------------------------------------------- */
.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0);
    white-space: nowrap; border: 0;
}

.blog-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}
.blog-search {
    flex: 1 1 auto;
    min-width: 0;
    font-family: var(--mono);
    font-size: 0.82rem;
    color: var(--ink);
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 0.2rem;
    width: min(280px, 100%);
}
.blog-search::placeholder { color: var(--faint); }
.blog-search:focus {
    outline: none;
    border-bottom-color: var(--green);
}
.blog-sort {
    flex: 0 0 auto;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: lowercase;
    color: var(--muted);
    background: none;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0.4rem 0.85rem;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease;
}
.blog-sort:hover { border-color: var(--green); color: var(--green); }

.blog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.6rem;
}
.chip {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: lowercase;
    color: var(--muted);
    background: none;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0.36rem 0.8rem;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.chip:hover { border-color: var(--green); color: var(--green); }
.chip.is-active {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--paper);
}
.chip:focus-visible,
.blog-sort:focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 2px;
}
.blog-empty {
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    padding: 2.5rem 0;
}

.notes {
    list-style: none;
    margin: 0;
    padding: 0;
}
.notes > li { border-top: 1px solid var(--line); }
.notes > li:last-child { border-bottom: 1px solid var(--line); }

.note {
    display: grid;
    grid-template-columns: 7.5rem 1fr;
    gap: 0.2rem 1.6rem;
    align-items: baseline;
    padding: 1.4rem 0.4rem;
    color: inherit;
    transition: background 0.18s ease, padding-left 0.18s ease;
}
.note:hover {
    background: var(--paper-deep);
    text-decoration: none;
    padding-left: 0.9rem;
}
.note time {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    color: var(--faint);
    text-transform: uppercase;
}
.note__body h2 {
    font-size: 1.32rem;
    color: var(--ink);
    margin-bottom: 0.25rem;
}
.note:hover .note__body h2 { color: var(--green-deep); }
.note__body p {
    margin: 0;
    color: var(--muted);
    font-size: 0.96rem;
}
.note__tag {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--green);
    margin-top: 0.45rem;
    display: inline-block;
}

/* single post (article) */
.post { max-width: var(--measure); }
.post .post-meta {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--faint);
    margin-bottom: 1rem;
}
.post h1 {
    font-size: clamp(1.9rem, 1.4rem + 2.2vw, 2.7rem);
    margin-bottom: 1.4rem;
}
.post h2 {
    font-size: 1.4rem;
    margin: 2.2rem 0 0.8rem;
}
.post blockquote {
    margin: 1.6rem 0;
    padding-left: 1.2rem;
    border-left: 2px solid var(--green);
    color: var(--muted);
    font-style: italic;
}
.post ul, .post ol {
    margin: 0 0 1.1rem;
    padding-left: 1.3rem;
}
.post li { margin: 0.3rem 0; }
.post li::marker { color: var(--green); }
.post pre {
    margin: 1.4rem 0;
    padding: 1rem 1.1rem;
    background: var(--paper-deep);
    border: 1px solid var(--line-soft);
    border-radius: 10px;
    overflow-x: auto;
    font-family: var(--mono);
    font-size: 0.8rem;
    line-height: 1.55;
    color: var(--ink);
}
.post pre code { font-size: inherit; background: none; padding: 0; }
.post code {
    font-family: var(--mono);
    font-size: 0.84em;
    background: var(--paper-deep);
    padding: 0.1em 0.35em;
    border-radius: 4px;
}
.post hr {
    border: 0;
    border-top: 1px solid var(--line);
    margin: 2rem 0;
}
.post img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 1.8rem 0;
}
.post figure { margin: 1.8rem 0; }
.post figure img { margin: 0; }
.post figcaption {
    margin-top: 0.6rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    color: var(--faint);
    text-align: center;
}
.post .post-sub {
    color: var(--muted);
    font-size: 1.05em;
    margin-bottom: 1.6rem;
}
.back {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: lowercase;
}

/* 10. Capabilities (constellation) ------------------------ */
.constellation {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: clamp(1.6rem, 4vw, 2.6rem) clamp(2rem, 6vw, 4rem);
    margin-top: 1rem;
}
.cluster { position: relative; }
.cluster__label {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--green);
    margin: 0 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--line-soft);
}
.cluster ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}
.cluster li {
    position: relative;
    padding-left: 1.1rem;
    color: var(--ink);
    font-size: 1.02rem;
}
.cluster li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--green);
    opacity: 0.55;
    transition: opacity 0.18s ease, transform 0.18s ease;
}
.cluster li:hover::before { opacity: 1; transform: scale(1.5); }

/* 11. Work (field notes) ---------------------------------- */
.fields {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.field {
    padding: 1.7rem 0;
    border-top: 1px solid var(--line);
}
.field:last-child { border-bottom: 1px solid var(--line); }
.field__top {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}
.field h2 {
    font-size: 1.3rem;
    color: var(--ink);
}
.field__kind {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--faint);
    white-space: nowrap;
}
.field p {
    color: var(--muted);
    font-size: 0.99rem;
    max-width: var(--measure);
    margin-bottom: 0.6rem;
}
.field__link {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: lowercase;
}
.field__link::after { content: " ↗"; opacity: 0.6; }

.section-label {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--green);
    margin: clamp(2.4rem, 6vw, 3.6rem) 0 1rem;
}

/* 12. Contact --------------------------------------------- */
.lines {
    list-style: none;
    margin: 1rem 0 0;
    padding: 0;
}
.lines li { border-top: 1px solid var(--line); }
.lines li:last-child { border-bottom: 1px solid var(--line); }
.line {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.15rem 0.3rem;
    color: var(--ink);
    transition: background 0.18s ease, padding 0.18s ease;
}
.line:hover { background: var(--paper-deep); text-decoration: none; padding-left: 0.8rem; }
.line__label {
    font-family: var(--mono);
    font-size: 0.74rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--green);
}
.line__val { color: var(--muted); font-size: 0.95rem; }
.line:hover .line__val { color: var(--green-deep); }

/* 13. Motion & responsive --------------------------------- */
@media (max-width: 600px) {
    /* blog list: date as a small label on top, not orphaned at the bottom */
    .note {
        grid-template-columns: 1fr;
        gap: 0.3rem;
    }
    .note time { margin-bottom: 0.15rem; }

    /* work: kind tag becomes an eyebrow above the title, so it never
       wraps awkwardly below a long heading */
    .field__top {
        flex-direction: column-reverse;
        align-items: flex-start;
        gap: 0.3rem;
    }

    /* a bit more code per line on small screens */
    .post pre {
        font-size: 0.74rem;
        padding: 0.85rem 0.9rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}