/* ============================================================
   memorial.wiki — a sunlit hall of bright remembrance
   muji × optimistic-bright, hexagonal-honeycomb wall
   ============================================================ */

:root {
    --paper-cream: #F6F1E6;
    --graphite-black: #1B1B1B;
    --graphite-soft: #5A574F;
    --candle-flame: #E8A33D;
    --candle-glow: #F9DDA9;
    --ink-trace: #7C2A2A;
    --echo-cream: #FBF7EE;

    --hex-size-desktop: 240px;
    --hex-size-tablet: 168px;
    --hex-size-mobile: 132px;
    --hex-gutter: 4px;

    --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --gentle: cubic-bezier(0.4, 0, 0.2, 1);

    --hex-clip: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background-color: var(--paper-cream);
    color: var(--graphite-black);
    font-family: 'Public Sans', system-ui, -apple-system, sans-serif;
    font-weight: 400;
    font-size: 14px;
    line-height: 1.7;
    letter-spacing: -0.005em;
    overflow-x: hidden;
    min-height: 100vh;
}

.filter-defs {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* Static grain overlay — paper fiber, not TV noise */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
    opacity: 0.06;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.105  0 0 0 0 0.105  0 0 0 0 0.105  0 0 0 0.9 0'/></filter><rect width='240' height='240' filter='url(%23n)'/></svg>");
    background-size: 240px 240px;
}

main {
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding: 0;
}

/* ============================================================
   LINTEL — top 20vh, wordmark + epigraph + hairline
   ============================================================ */

.lintel {
    position: relative;
    width: 100%;
    height: 20vh;
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 0 24px;
}

.lintel-inner {
    position: relative;
    width: 100%;
    text-align: center;
}

.wordmark {
    font-family: 'Public Sans', sans-serif;
    font-weight: 600;
    font-size: 28px;
    letter-spacing: 0.06em;
    color: var(--graphite-black);
    margin: 0 0 14px 0;
    padding: 0;
    line-height: 1;
}

.epigraph {
    font-family: 'Fraunces', Georgia, serif;
    font-style: italic;
    font-weight: 300;
    font-size: 13px;
    color: var(--graphite-soft);
    margin: 0 auto;
    max-width: 480px;
    transition: opacity 1.6s var(--gentle);
    line-height: 1.5;
}

.epigraph.fade {
    opacity: 0;
}

.lintel-hairline {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100vw;
    height: 0.5px;
    background-color: var(--graphite-black);
    opacity: 0.35;
}

.search-caret {
    position: absolute;
    bottom: -28px;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    font-size: 12px;
    color: var(--graphite-black);
    letter-spacing: 0.06em;
    opacity: 0;
    transition: opacity 320ms var(--gentle);
    pointer-events: none;
    white-space: nowrap;
}

.search-caret.active {
    opacity: 1;
}

.caret-prefix {
    color: var(--graphite-soft);
    margin-right: 4px;
}

.caret-text {
    color: var(--graphite-black);
}

.caret-bar {
    display: inline-block;
    width: 1px;
    height: 14px;
    background-color: var(--graphite-black);
    margin-left: 2px;
    vertical-align: middle;
    animation: caret-blink 1.1s infinite var(--gentle);
}

@keyframes caret-blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* ============================================================
   GUTTERS — sacred negative space, 19% on each side
   ============================================================ */

.gutter {
    position: fixed;
    top: 50%;
    width: 19%;
    transform: translateY(-50%);
    pointer-events: none;
    z-index: 50;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.gutter-left {
    left: 0;
    align-items: flex-start;
    padding-left: 28px;
}

.gutter-right {
    right: 0;
    align-items: flex-end;
    padding-right: 28px;
}

.gutter-label {
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--graphite-black);
    line-height: 1.3;
}

.gutter-label-secondary {
    color: var(--graphite-soft);
}

/* ============================================================
   THE WALL — hexagonal honeycomb tessellation
   ============================================================ */

.wall {
    position: relative;
    width: 62%;
    margin: 0 auto;
    padding: 24px 0 80px;
    display: grid;
    grid-template-columns: repeat(auto-fill, var(--hex-size-desktop));
    grid-auto-rows: calc(var(--hex-size-desktop) * 0.75 + var(--hex-gutter));
    gap: var(--hex-gutter);
    justify-content: center;
}

/* Honeycomb offset — shift even rows by half a cell */
.wall .cell[data-row-parity="even"] {
    transform: translateX(calc(var(--hex-size-desktop) / 2 + var(--hex-gutter) / 2));
}

/* ============================================================
   CELL — the hex; the affordance; the entire row
   ============================================================ */

.cell {
    position: relative;
    width: var(--hex-size-desktop);
    height: var(--hex-size-desktop);
    background-color: var(--paper-cream);
    clip-path: var(--hex-clip);
    cursor: pointer;
    transition: transform 720ms var(--spring),
                opacity 720ms var(--gentle),
                filter 720ms var(--gentle);
    will-change: transform, opacity;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 18% 12% 12%;
    user-select: none;
    overflow: hidden;
}

/* The hairline border — drawn via inset shadow inside the clip */
.cell::before {
    content: "";
    position: absolute;
    inset: 0;
    clip-path: var(--hex-clip);
    box-shadow: inset 0 0 0 1px rgba(27, 27, 27, 0.14);
    pointer-events: none;
    transition: box-shadow 480ms var(--gentle);
}

.cell:hover::before {
    box-shadow: inset 0 0 0 1px rgba(27, 27, 27, 0.36);
}

/* Below-fold dim */
.cell.below-fold {
    opacity: 0.88;
    filter: brightness(0.96);
}

/* Search ghost state */
.wall.searching .cell:not(.match) {
    opacity: 0.14;
    filter: grayscale(0.4);
}

.wall.searching .cell.match {
    opacity: 1;
}

/* Candle glyph — the single repeating motif */
.candle {
    width: 14px;
    height: 28px;
    margin-bottom: 10px;
    flex-shrink: 0;
    transform-origin: center bottom;
}

.candle .stem {
    stroke: var(--graphite-black);
    stroke-width: 1;
    fill: none;
}

.candle .flame {
    fill: var(--candle-flame);
    transform-origin: center bottom;
    animation: flicker 3.4s ease-in-out infinite;
}

.candle .glow {
    fill: var(--candle-glow);
    opacity: 0.8;
    transform-origin: center bottom;
    animation: flicker-glow 3.4s ease-in-out infinite;
}

@keyframes flicker {
    0%, 100% {
        transform: scale(1);
        opacity: 0.92;
    }
    50% {
        transform: scale(1.06);
        opacity: 1;
    }
}

@keyframes flicker-glow {
    0%, 100% {
        transform: scale(0.94);
        opacity: 0.55;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.82;
    }
}

/* Cell name — humanist, two lines max */
.name {
    font-family: 'Public Sans', sans-serif;
    font-weight: 500;
    font-size: 14px;
    line-height: 1.22;
    color: var(--graphite-black);
    text-align: center;
    margin: 0 0 6px 0;
    padding: 0;
    hyphens: none;
    word-break: keep-all;
    max-width: 100%;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Dates — small caps, condensed */
.dates {
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    font-size: 11px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--graphite-soft);
    margin: 0;
    padding: 0;
    line-height: 1;
}

/* Contributor mark — tiny ink-trace daggers */
.mark {
    color: var(--ink-trace);
    font-size: 11px;
    margin-left: 3px;
    vertical-align: super;
    line-height: 1;
}

/* ============================================================
   EXPANDED CELL — 7-hex footprint, in-place
   ============================================================ */

.cell.expanded {
    width: calc(var(--hex-size-desktop) * 2.6);
    height: calc(var(--hex-size-desktop) * 2.6 * 0.866);
    padding: 8% 10%;
    z-index: 20;
    background-color: var(--echo-cream);
    cursor: default;
    transform: translateX(calc(var(--hex-size-desktop) * -0.8))
               translateY(calc(var(--hex-size-desktop) * -0.5));
    grid-column: span 3;
    grid-row: span 3;
}

.wall .cell.expanded[data-row-parity="even"] {
    transform: translateX(calc(var(--hex-size-desktop) * -0.8 + var(--hex-size-desktop) / 2 + var(--hex-gutter) / 2))
               translateY(calc(var(--hex-size-desktop) * -0.5));
}

.cell.expanded::before {
    box-shadow: inset 0 0 0 1px rgba(27, 27, 27, 0.20),
                inset 0 0 0 2px rgba(27, 27, 27, 0.05);
}

/* Fine grain overlay on expanded cell */
.cell.expanded::after {
    content: "";
    position: absolute;
    inset: 0;
    clip-path: var(--hex-clip);
    pointer-events: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n2'><feTurbulence type='fractalNoise' baseFrequency='1.6' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.105  0 0 0 0 0.105  0 0 0 0 0.105  0 0 0 0.9 0'/></filter><rect width='160' height='160' filter='url(%23n2)'/></svg>");
    background-size: 160px 160px;
    opacity: 0.025;
    mix-blend-mode: multiply;
}

/* Neighbors push outward */
.cell.neighbor-push-up    { transform: translateY(calc(var(--hex-size-desktop) * -0.18)); }
.cell.neighbor-push-down  { transform: translateY(calc(var(--hex-size-desktop) * 0.18)); }
.cell.neighbor-push-left  { transform: translateX(calc(var(--hex-size-desktop) * -0.18)); }
.cell.neighbor-push-right { transform: translateX(calc(var(--hex-size-desktop) * 0.18)); }
.cell.neighbor-push-up-left   { transform: translate(calc(var(--hex-size-desktop) * -0.12), calc(var(--hex-size-desktop) * -0.14)); }
.cell.neighbor-push-up-right  { transform: translate(calc(var(--hex-size-desktop) * 0.12), calc(var(--hex-size-desktop) * -0.14)); }

.wall .cell[data-row-parity="even"].neighbor-push-up    { transform: translateX(calc(var(--hex-size-desktop) / 2 + var(--hex-gutter) / 2)) translateY(calc(var(--hex-size-desktop) * -0.18)); }
.wall .cell[data-row-parity="even"].neighbor-push-down  { transform: translateX(calc(var(--hex-size-desktop) / 2 + var(--hex-gutter) / 2)) translateY(calc(var(--hex-size-desktop) * 0.18)); }

/* Expanded content layout */
.cell .expanded-content {
    display: none;
    width: 100%;
    height: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    overflow: hidden;
}

.cell.expanded .expanded-content {
    display: flex;
}

.cell.expanded .candle-large {
    width: 88px;
    height: 132px;
    margin: 0 auto;
}

.cell.expanded .name-large {
    font-family: 'Public Sans', sans-serif;
    font-weight: 600;
    font-size: 22px;
    text-align: center;
    margin: 0;
    color: var(--graphite-black);
    letter-spacing: 0.01em;
}

.cell.expanded .dates-large {
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    font-size: 12px;
    text-align: center;
    margin: -6px 0 0 0;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--graphite-soft);
}

.expanded-body {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 22px;
    align-items: center;
    flex: 1;
    min-height: 0;
}

.halftone {
    width: 100%;
    aspect-ratio: 1 / 1;
    max-width: 180px;
    margin: 0 auto;
}

.halftone svg {
    width: 100%;
    height: 100%;
    display: block;
}

.expanded-text {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 0;
}

.eulogy {
    font-family: 'Public Sans', sans-serif;
    font-weight: 400;
    font-size: 13px;
    line-height: 1.6;
    color: var(--graphite-black);
    margin: 0;
    letter-spacing: -0.005em;
}

.echoes {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 0.5px solid rgba(27, 27, 27, 0.18);
    padding-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.echoes li {
    font-family: 'Fraunces', Georgia, serif;
    font-style: italic;
    font-weight: 300;
    font-size: 12.5px;
    line-height: 1.5;
    color: var(--graphite-soft);
}

.echoes li::before {
    content: "echo  ";
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    font-style: normal;
    text-transform: uppercase;
    font-size: 10px;
    letter-spacing: 0.14em;
    color: var(--graphite-soft);
    margin-right: 4px;
    opacity: 0.7;
}

.light-flame-button {
    align-self: flex-start;
    background: none;
    border: none;
    padding: 4px 0;
    margin: 4px 0 0 0;
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--graphite-black);
    cursor: pointer;
    border-bottom: 1px solid var(--candle-flame);
    transition: color 200ms var(--gentle);
}

.light-flame-button:hover {
    color: var(--candle-flame);
}

/* ============================================================
   RIPPLE — spring-physics warm wash on neighbors
   ============================================================ */

.cell.ripple {
    background-color: var(--candle-glow) !important;
    transition: background-color 280ms var(--gentle);
}

.cell.ripple-fade {
    background-color: var(--paper-cream);
    transition: background-color 800ms var(--gentle);
}

/* ============================================================
   END OF WALL — light another?
   ============================================================ */

.wall-end {
    width: 62%;
    margin: 0 auto;
    padding: 60px 0 120px;
    text-align: center;
}

.end-line {
    font-family: 'Fraunces', Georgia, serif;
    font-style: italic;
    font-weight: 300;
    font-size: 12px;
    color: var(--graphite-soft);
    margin: 0;
    letter-spacing: 0.02em;
}

.light-another {
    background: none;
    border: none;
    padding: 0 2px;
    font-family: inherit;
    font-style: italic;
    font-weight: 300;
    font-size: 12px;
    color: var(--graphite-black);
    border-bottom: 1px solid var(--candle-flame);
    cursor: pointer;
    transition: color 200ms var(--gentle);
}

.light-another:hover {
    color: var(--candle-flame);
}

/* ============================================================
   CONTRIBUTION FORM — dressed as a hex
   ============================================================ */

.cell-form {
    width: calc(var(--hex-size-desktop) * 2.4);
    height: auto;
    min-height: calc(var(--hex-size-desktop) * 2.4 * 0.85);
    margin: 40px auto 0;
    padding: 60px 80px;
    cursor: default;
    background-color: var(--echo-cream);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.cell-form[hidden] {
    display: none;
}

.cell-form::before {
    box-shadow: inset 0 0 0 1px rgba(27, 27, 27, 0.20);
}

.contribute {
    display: flex;
    flex-direction: column;
    gap: 18px;
    width: 100%;
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--graphite-soft);
}

.form-input,
.form-textarea {
    background: transparent;
    border: none;
    border-bottom: 0.5px solid rgba(27, 27, 27, 0.36);
    font-family: 'Public Sans', sans-serif;
    font-size: 14px;
    color: var(--graphite-black);
    padding: 4px 0;
    outline: none;
    transition: border-color 200ms var(--gentle);
}

.form-input:focus,
.form-textarea:focus {
    border-bottom-color: var(--candle-flame);
}

.form-textarea {
    resize: none;
    line-height: 1.5;
    font-family: 'Fraunces', Georgia, serif;
    font-style: italic;
}

.dates-pair {
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-input-year {
    width: 60px;
    text-align: center;
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.em-dash {
    color: var(--graphite-soft);
}

.form-submit {
    align-self: center;
    background: none;
    border: none;
    border-bottom: 1px solid var(--candle-flame);
    padding: 6px 12px;
    margin-top: 8px;
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--graphite-black);
    cursor: pointer;
    transition: color 200ms var(--gentle);
}

.form-submit:hover {
    color: var(--candle-flame);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
    .wall {
        width: 78%;
        grid-template-columns: repeat(auto-fill, var(--hex-size-tablet));
        grid-auto-rows: calc(var(--hex-size-tablet) * 0.75 + var(--hex-gutter));
    }
    .cell {
        width: var(--hex-size-tablet);
        height: var(--hex-size-tablet);
    }
    .wall .cell[data-row-parity="even"] {
        transform: translateX(calc(var(--hex-size-tablet) / 2 + var(--hex-gutter) / 2));
    }
    .cell.expanded {
        width: calc(var(--hex-size-tablet) * 2.6);
        height: calc(var(--hex-size-tablet) * 2.6 * 0.866);
        transform: translateX(calc(var(--hex-size-tablet) * -0.8))
                   translateY(calc(var(--hex-size-tablet) * -0.5));
    }
    .gutter {
        width: 11%;
        padding-left: 14px;
        padding-right: 14px;
    }
    .wall-end, .cell-form {
        width: 78%;
    }
}

@media (max-width: 640px) {
    .wall {
        width: 96%;
        grid-template-columns: repeat(auto-fill, var(--hex-size-mobile));
        grid-auto-rows: calc(var(--hex-size-mobile) * 0.75 + var(--hex-gutter));
    }
    .cell {
        width: var(--hex-size-mobile);
        height: var(--hex-size-mobile);
    }
    .wall .cell[data-row-parity="even"] {
        transform: translateX(calc(var(--hex-size-mobile) / 2 + var(--hex-gutter) / 2));
    }
    .cell.expanded {
        width: calc(var(--hex-size-mobile) * 2.6);
        height: auto;
        min-height: calc(var(--hex-size-mobile) * 2.6 * 0.866);
        transform: translateX(calc(var(--hex-size-mobile) * -0.8))
                   translateY(calc(var(--hex-size-mobile) * -0.3));
    }
    .gutter {
        display: none;
    }
    .wall-end {
        width: 96%;
    }
    .cell-form {
        width: 96%;
        padding: 40px 24px;
    }
    .expanded-body {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .lintel {
        height: auto;
        min-height: 140px;
        padding: 24px 0 16px;
    }
    .wordmark {
        font-size: 22px;
    }
}

/* Reduced motion — calmer */
@media (prefers-reduced-motion: reduce) {
    .candle .flame,
    .candle .glow {
        animation: none;
    }
    .cell {
        transition-duration: 200ms;
    }
}