/* Minimal, warm serif theme */
:root {
    --bg: #FAF7F2;
    --surface: #F3EFE8;
    --text: #1C1B1A;
    --muted: #6E6A63;
    --line: #E5DED4;
    --accent: #8B7355;
    --accent-2: #6F8B7A;

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 16px;
    --space-4: 24px;
    --space-5: 40px;
    --space-6: 64px;
    --space-7: 96px;
    /* extended for wider separation when needed */

    --rhythm-tight: 6px;
    --rhythm: 12px;

    --radius: 10px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: "Source Serif 4", ui-serif, Georgia, serif;
    line-height: 1.55;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Accessibility helpers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 8px;
    background: var(--text);
    color: var(--bg);
    padding: 8px 12px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.9rem;
    z-index: 1000;
    transition: top 160ms ease;
}

.skip-link:focus {
    top: 8px;
}

.container {
    max-width: 980px;
    margin-inline: auto;
    padding-inline: var(--space-4);
}

/* Slightly tighter horizontal rhythm on narrow viewports */
@media (max-width: 640px) {
    .container {
        padding-inline: var(--space-3);
    }

    .hero.container {
        padding-top: var(--space-5);
    }

    .hero-focus {
        margin-left: -2px;
        /* optical alignment tweak */
        margin-right: 0;
    }
}

/* Typography */
h1, h2, h3 {
    margin: 0 0 var(--space-3) 0;
    font-family: "Cormorant Garamond", ui-serif, Georgia, serif;
    font-weight: 600;
    letter-spacing: -0.01em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    line-height: 1.1;
}

h2 {
    font-size: clamp(1.375rem, 2.5vw, 1.75rem);
}

p {
    margin: 0 0 var(--space-3) 0;
    font-size: 1.05rem;
}

.muted {
    color: var(--muted);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    background: color-mix(in oklab, var(--bg) 92%, white 8%);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-bottom: 1px solid transparent;
    transition: border-color 200ms ease;
    z-index: 100;
}

.site-header.is-scrolled {
    border-color: var(--line);
}

.site-header .row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: var(--space-3);
}

.brand {
    font-family: "Cormorant Garamond", ui-serif, Georgia, serif;
    font-weight: 600;
    letter-spacing: -0.02em;
    text-decoration: none;
    color: var(--text);
    font-size: clamp(1.35rem, 1.15rem + 0.6vw, 1.85rem);
    display: inline-block;
    position: relative;
    transition: font-size 220ms ease, letter-spacing 220ms ease, transform 420ms cubic-bezier(.22, .61, .36, 1), opacity 420ms ease;
}

/* Brand intro animation (removed after first frame) */
.brand.brand--start {
    opacity: 0;
    transform: translateY(4px) scale(1.04);
}

.brand.brand--in {
    opacity: 1;
    transform: none;
}

/* Mini (scrolled) state switches to initials via JS */
.brand.brand--mini {
    font-size: 0.95rem;
    letter-spacing: 0.05em;
}

/* Layered name → initials cross-fade */
.brand-full, .brand-initials {
    display: inline-block;
    transition: opacity 260ms ease, transform 300ms cubic-bezier(.22, .61, .36, 1);
    will-change: opacity, transform;
}

.brand-initials {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    transform: translateY(4px);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.brand.brand--mini .brand-full {
    opacity: 0;
    transform: translateY(-4px);
}

.brand.brand--mini .brand-initials {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .brand {
        transition: none;
    }

    .brand.brand--start {
        opacity: 1;
        transform: none;
    }

    .brand-full, .brand-initials {
        transition: none;
    }
}

.nav {
    display: flex;
    gap: var(--space-4);
}

.nav a {
    position: relative;
    text-decoration: none;
    color: var(--text);
    padding-bottom: 2px;
}

.nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 200ms ease;
}

.nav a:hover::after {
    transform: scaleX(1);
}

/* Hero */
.hero {
    /* Reduced bottom padding to tighten gap before next section */
    padding-top: clamp(var(--space-6), 10vh, 140px);
    padding-bottom: clamp(var(--space-4), 6vh, 88px);
}

.hero-focus {
    --hero-focus-bg: color-mix(in oklab, var(--surface) 90%, white 10%);
    position: relative;
    margin-top: var(--space-4);
    margin-bottom: var(--space-4);
    padding: var(--space-4) var(--space-5) var(--space-4) var(--space-5);
    border: 1px solid var(--line);
    background: var(--hero-focus-bg);
    border-radius: calc(var(--radius) + 2px);
    box-shadow: 0 1px 3px -1px rgba(0 0 0 / 7%), 0 0 0 1px rgba(0 0 0 / 3%);
    overflow: hidden;
}

.hero-focus::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, color-mix(in oklab, var(--accent) 30%, transparent) 0%, transparent 55%);
    pointer-events: none;
    opacity: 0.35;
}

.hero-focus::after {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--accent), color-mix(in oklab, var(--accent) 65%, var(--accent-2)) 85%);
    border-top-left-radius: inherit;
    border-bottom-left-radius: inherit;
}

.hero-focus p+p {
    margin-top: var(--space-3);
}

.hero-main {
    min-height: 90%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}


/* Full-height hero + scroll cue */
[data-hero] {
    min-height: 100svh;
    /* use small viewport unit for mobile chrome */
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: var(--space-7);
    position: relative;
}

@media (max-width: 640px) {
    [data-hero] {
        padding-top: var(--space-6);
    }
}

.scroll-cue {
    min-height: 10%;
    position: absolute;
    left: 50%;
    bottom: var(--space-7);
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    opacity: 0.9;
    transition: opacity 300ms ease, transform 400ms ease;
    pointer-events: none;
}

.scroll-cue-text {
    font-family: "Cormorant Garamond", ui-serif, Georgia, serif;
    font-weight: 500;
}

.scroll-cue-indicator {
    width: 18px;
    height: 28px;
    border: 2px solid var(--muted);
    border-radius: 12px;
    position: relative;
}

.scroll-cue-indicator::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 6px;
    width: 4px;
    height: 4px;
    background: var(--muted);
    border-radius: 50%;
    transform: translate(-50%, 0);
    animation: scrollDot 1600ms ease-in-out infinite;
}

@keyframes scrollDot {
    0% {
        transform: translate(-50%, 0);
        opacity: 0;
    }

    20% {
        opacity: 1;
    }

    60% {
        transform: translate(-50%, 10px);
        opacity: 1;
    }

    100% {
        transform: translate(-50%, 14px);
        opacity: 0;
    }
}

.scroll-cue.is-hidden {
    opacity: 0;
    transform: translate(-50%, 10px);
}

/* Extremely compress scroll cue on shorter viewports (<800px height) */
@media (max-height: 800px) {
    .scroll-cue {
        /* retain centering translate and add scale */
        transform: translateX(-50%) scale(0.01);
    }

    .scroll-cue.is-hidden {
        /* preserve hidden shift while still scaled down */
        transform: translate(-50%, 10px) scale(0.01);
    }
}

/* Smooth upward shift of sections after hero */
section:not(#home) {
    transition: transform 400ms cubic-bezier(.22, .61, .36, 1);
    will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
    section:not(#home) {
        transition: none;
    }
}

@media (max-width: 640px) {
    .hero-focus {
        padding: var(--space-4) var(--space-4) var(--space-4) calc(var(--space-4) + 2px);
        margin-top: var(--space-3);
        margin-bottom: var(--space-3);
    }
}

.hero-focus-desc {
    max-width: 60ch;
}

.tagline {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--muted);
}

.current {
    margin-top: var(--space-2);
    color: var(--muted);
}

.emphasis {
    color: var(--text);
}

/* Lists and cards */
.list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--space-3);
}

.card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: var(--space-4);
    transition: transform 200ms ease, background 200ms ease, border-color 200ms ease;
}

.card:hover {
    transform: translateY(-2px);
    background: color-mix(in oklab, var(--surface) 92%, white 8%);
}

.card-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
}

.card-title {
    font-weight: 600;
}

.card-meta {
    color: var(--muted);
    font-size: 0.95rem;
}

.card-desc {
    color: var(--text);
}

/* Links */
a {
    color: var(--text);
}

.arrow-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
}

.arrow-link::after {
    content: "→";
    transition: transform 150ms ease;
}

/* Directional variants (no duplication with inline characters) */
.arrow-link-prev::before {
    content: "←";
    margin-right: 10px;
    transition: transform 150ms ease;
}

.arrow-link-prev::after {
    content: none;
}

.arrow-link-prev:hover::before {
    transform: translateX(-3px);
}

.arrow-link-next::after {
    content: "→";
}

.arrow-link:hover::after {
    transform: translateX(3px);
}

/* Project card primary link variant (scoped so other arrow-links remain lightweight) */
/* Unified pill control styling (project link + expand button)
   NOTE: Do NOT set explicit display on .expand-btn so the [hidden] attribute can collapse it.
*/
.card .arrow-link, .expand-btn {
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: none;
    border: 1px solid var(--line);
    padding: 4px 14px;
    border-radius: 999px;
    line-height: 1.2;
    position: relative;
    top: 0;
    cursor: pointer;
    color: var(--muted);
    gap: 6px;
    font-family: inherit;
    transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease;
}

/* Arrow link remains an inline-flex pill */
.card .arrow-link {
    display: inline-flex;
    align-items: center;
}

/* Ensure hidden state always wins */
.expand-btn[hidden] {
    display: none !important;
}

.card .arrow-link::after {
    /* ensure consistent arrow sizing in pill */
    font-size: 0.8rem;
}

.card .arrow-link:hover, .expand-btn:hover {
    background: var(--surface);
    color: var(--text);
    transform: translateY(-1px);
}

.card .arrow-link:active, .expand-btn:active {
    transform: translateY(0);
}

.card .arrow-link:focus-visible, .expand-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.muted-link {
    color: var(--muted);
    text-decoration: none;
}

.muted-link:hover {
    color: var(--text);
}

/* Sections */
section {
    padding-block: var(--space-6);
}

/* Utility spacing adjustments for denser homepage flow */
.section-tight {
    /* Slightly reduce top padding only; keep bottom for internal rhythm */
    padding-top: var(--space-5);
    padding-bottom: var(--space-5);
}

/* Vertical stack utility */
.stack {
    display: flex;
    flex-direction: column;
}

.stack-tight>*+* {
    margin-top: var(--rhythm-tight);
}

.stack-normal>*+* {
    margin-top: var(--rhythm);
}

/* Muted intro / meta paragraph standard spacing */
.section-intro {
    margin-top: -4px;
    margin-bottom: var(--space-4);
    font-size: 0.95rem;
}

/* Hero refinements */
[data-hero] h1 {
    margin-bottom: var(--space-4);
}

[data-hero] .tagline {
    margin-bottom: var(--space-5);
}

[data-hero] .hero-focus {
    margin-top: var(--space-2);
}

/* List section spacing reset */
.thoughts-list, .tinker-timeline, .list {
    margin-top: 0;
}

/* Call-to-action link group spacing */
.section-cta {
    margin-top: var(--space-4);
}

/* Clamp / expandable content */
.clamp {
    --clamp-lines: 3;
    display: -webkit-box;
    -webkit-line-clamp: var(--clamp-lines);
    line-clamp: var(--clamp-lines);
    -webkit-box-orient: vertical;
    overflow: hidden;
    position: relative;
}

.clamp.is-expanded {
    -webkit-line-clamp: unset;
    line-clamp: unset;
    display: block;
}

/* Expand button no standalone vertical margin; spacing handled by contextual rule below */
.expand-btn {
    margin-top: 0;
}

/* Uniform spacing between tag badges and action row (link / expand controls) */
.card .tag-badges+div {
    margin-top: var(--space-2);
}

/* Streams section deprecated; related styles removed. */

.section-heading {
    margin: 0 0 var(--space-3);
}

.contact-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.site-footer {
    padding-block: var(--space-6);
    color: var(--muted);
    border-top: 1px solid var(--line);
}

/* Footer proximity adjustments (homepage) */
#about.section-tight {
    padding-bottom: var(--space-2);
}

.site-footer {
    padding-top: var(--space-3);
}

/* Dynamic sections */
.section-subtle-heading {
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 var(--space-3);
}

.tinker-timeline {
    position: relative;
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--space-3);
}

.tinker-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    position: relative;
    overflow: hidden;
}

.tinker-meta {
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}

.tinker-title {
    font-weight: 600;
}

.thoughts-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--space-3);
}

.thoughts-item {
    padding: var(--space-3) var(--space-4);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: background 180ms ease;
}

.thoughts-item:hover {
    background: color-mix(in oklab, var(--surface) 92%, white 8%);
}

.thoughts-item time {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    color: var(--muted);
    margin-bottom: 4px;
}

.inline-badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.7rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    background: color-mix(in oklab, var(--accent) 85%, white 15%);
    color: var(--bg);
    border-radius: 999px;
}

/* Tag badges */
.tag-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    /* Added bottom margin to separate tags from following link/action row */
    margin: var(--space-2) 0 var(--space-2) 0;
}

.tag-badge {
    display: inline-flex;
    padding: 2px 10px;
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: color-mix(in oklab, var(--accent-2) 80%, white 20%);
    color: var(--bg);
    border-radius: 999px;
    line-height: 1.3;
}

.filter-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: var(--space-4);
}

.filter-toolbar .tag-filter {
    background: none;
    border: 1px solid var(--line);
    padding: 4px 14px;
    font-family: inherit;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 999px;
    cursor: pointer;
    color: var(--muted);
    transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}

.filter-toolbar .tag-filter:hover {
    background: var(--surface);
    color: var(--text);
}

.filter-toolbar .tag-filter.is-active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

/* Works page view toggle */
.view-toggle {
    display: flex;
    gap: 8px;
}

.view-tab {
    background: none;
    border: 1px solid var(--line);
    padding: 6px 18px;
    font-family: inherit;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 999px;
    cursor: pointer;
    color: var(--muted);
    transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}

.view-tab:hover {
    background: var(--surface);
    color: var(--text);
}

.view-tab.is-active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

.works-panel {
    animation: fadeIn 240ms ease;
}

/* Year filter (tinkering) */
.year-filter {
    background: none;
    border: 1px solid var(--line);
    padding: 4px 14px;
    font-family: inherit;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 999px;
    cursor: pointer;
    color: var(--muted);
    transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}

.year-filter:hover {
    background: var(--surface);
    color: var(--text);
}

.year-filter.is-active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Progressive fade for timeline depth */
.tinker-item:nth-child(n+4) {
    opacity: 0.85;
}

.tinker-item:nth-child(n+6) {
    opacity: 0.7;
}

.tinker-item:nth-child(n+8) {
    opacity: 0.55;
}

.tinker-item:nth-child(n+10) {
    opacity: 0.42;
}

@media (prefers-reduced-motion: reduce) {
    .tinker-item, .thoughts-item {
        transition: none;
    }
}

/* Reveal on view */
.reveal {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 680px) {
    .nav {
        gap: var(--space-3);
    }

    .card-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }
}

/* Floating bottom navigation */
.floating-nav {
    position: fixed;
    left: 50%;
    /* Avoid crowding iOS Safari home indicator & ensure minimum breathing room.
       Order: safe-area inset + base clamp; max() chooses larger of device inset or design spacing. */
    bottom: max(env(safe-area-inset-bottom, 0px), clamp(14px, 2.8vh, 40px));
    transform: translateX(-50%);
    background: color-mix(in oklab, var(--bg) 85%, white 15%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 10px 20px 10px 16px;
    box-shadow: 0 4px 18px -4px rgba(0, 0, 0, 0.12), 0 2px 6px -2px rgba(0, 0, 0, 0.08);
    z-index: 120;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Pre-hero: nav starts hidden; JS drives --nav-fade 0->1 as cue fades */
/* Floating nav base */
.floating-nav {
    opacity: var(--nav-fade, 1);
    transform: translateX(-50%) translateY(var(--nav-shift, 0));
    transition: opacity 320ms ease, transform 420ms cubic-bezier(.22, .61, .36, 1);
}

/* Home (hero) page: start hidden until JS sets progressive fade */
.floating-nav[data-hero-nav] {
    --nav-fade: 0;
    /* start hidden via variable; base rule handles opacity */
}

.floating-nav.is-prehero {
    pointer-events: none;
}

/* force-expand no-op now that scaling behavior removed */

.floating-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 28px;
    align-items: center;
}

.floating-link {
    position: relative;
    text-decoration: none;
    font-size: 0.8rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--muted);
    transition: color 160ms ease;
    font-weight: 600;
}

.floating-link[aria-current="page"], .floating-link:hover {
    color: var(--text);
}

.floating-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 4px;
}

/* Remove underline progress for regular links; home icon gets progress instead */
.floating-link[aria-current="page"]::after {
    display: none;
}

/* Active page icon stroke progress */
.progress-icon {
    stroke: var(--text);
    fill: none;
    stroke-width: 2px;
    vector-effect: non-scaling-stroke;
    width: 20px;
    height: 20px;
    display: block;
}

.progress-icon path[data-progress-base] {
    fill: none;
    /* Slightly richer base stroke for better legibility while still subtle */
    stroke: color-mix(in oklab, var(--text) 32%, var(--line));
    opacity: 0.75;
    /* previously 0.55 */
    stroke-linejoin: round;
    stroke-linecap: round;
}

.progress-icon path[data-progress-path] {
    fill: none;
    stroke: var(--text);
    stroke-linejoin: round;
    stroke-linecap: round;
    stroke-dasharray: var(--icon-total, 100);
    stroke-dashoffset: calc(var(--icon-total, 100) - (var(--icon-progress, 0) * var(--icon-total, 100)));
    transition: stroke-dashoffset 140ms linear, stroke 160ms ease;
}

a.floating-link[aria-current="page"]:hover .progress-icon path[data-progress-path],
a.floating-link[aria-current="page"]:focus-visible .progress-icon path[data-progress-path] {
    stroke: var(--accent);
}

@media (max-width: 640px) {
    .floating-nav-list {
        gap: 18px;
    }

    .floating-link {
        font-size: 0.7rem;
    }

    .floating-nav {
        padding: 8px 16px 8px 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .floating-nav {
        transition: none;
    }
}