/* ===========================================================
   gunsul.studio v2 — architectural drafting board aesthetic
   Palette
     #0E3F73  cyanotype blue
     #F4EFE0  sketchpad paper
     #2B2B2B  graphite
     #C0392B  drafting red
     #F1C40F  site yellow
     #39C2D7  cool cyan
     #D9C9A4  tracing amber
     #1A2D44  midnight rule
   =========================================================== */

:root {
    --c-blueprint: #0E3F73;
    --c-paper: #F4EFE0;
    --c-paper-deep: #ECE4CF;
    --c-graphite: #2B2B2B;
    --c-red: #C0392B;
    --c-yellow: #F1C40F;
    --c-cyan: #39C2D7;
    --c-amber: #D9C9A4;
    --c-midnight: #1A2D44;

    --f-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
    --f-display: 'Cormorant Garamond', 'Times New Roman', Georgia, serif;
    --f-sans: 'Archivo', 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;

    --grid-minor: 20px;
    --grid-major: 100px;
}

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

html, body {
    background: var(--c-paper);
    color: var(--c-graphite);
    font-family: var(--f-sans);
    font-size: 16px;
    line-height: 1.55;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    position: relative;
    min-height: 100vh;
    background-image:
        linear-gradient(transparent calc(var(--grid-minor) - 1px), rgba(14,63,115,0.06) 0),
        linear-gradient(90deg, transparent calc(var(--grid-minor) - 1px), rgba(14,63,115,0.06) 0),
        linear-gradient(transparent calc(var(--grid-major) - 1px), rgba(14,63,115,0.10) 0),
        linear-gradient(90deg, transparent calc(var(--grid-major) - 1px), rgba(14,63,115,0.10) 0);
    background-size:
        var(--grid-minor) var(--grid-minor),
        var(--grid-minor) var(--grid-minor),
        var(--grid-major) var(--grid-major),
        var(--grid-major) var(--grid-major);
}

/* Paper grain noise overlay */
.paper-grain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.5;
    mix-blend-mode: multiply;
    background-image: radial-gradient(rgba(43,43,43,0.18) 1px, transparent 1px),
                      radial-gradient(rgba(43,43,43,0.10) 1px, transparent 1px);
    background-size: 3px 3px, 5px 5px;
    background-position: 0 0, 1px 2px;
}

/* Vertical red rule running down the left margin (drafting margin) */
.rule-margin {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 56px;
    width: 1px;
    background: linear-gradient(to bottom, transparent 0%, var(--c-red) 6%, var(--c-red) 94%, transparent 100%);
    opacity: 0.4;
    z-index: 2;
    pointer-events: none;
}

@media (max-width: 720px) {
    .rule-margin { left: 24px; }
}

/* ===========================================================
   Drafting nav (sticky title block)
   =========================================================== */

.drafting-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 24px;
    padding: 12px 32px 12px 80px;
    background: rgba(244, 239, 224, 0.94);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--c-graphite);
}

.drafting-nav::before {
    content: "";
    position: absolute;
    inset: 4px 8px;
    border: 1px solid rgba(14,63,115,0.35);
    pointer-events: none;
}

.nav-mark {
    position: relative;
    width: 28px;
    height: 28px;
}
.nav-corner {
    position: absolute;
    width: 10px;
    height: 10px;
    border: 1.5px solid var(--c-blueprint);
}
.nav-corner.tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.nav-corner.tr { top: 0; right: 0; border-left: none; border-bottom: none; }

.nav-stamp {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--c-blueprint);
    text-transform: uppercase;
}
.stamp-bar {
    display: inline-block;
    width: 18px;
    height: 1px;
    background: var(--c-blueprint);
}

.nav-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px 18px;
}
.nav-list a {
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    color: var(--c-graphite);
    text-decoration: none;
    padding: 6px 10px;
    border: 1px solid transparent;
    transition: color 200ms ease, border-color 200ms ease, background 200ms ease;
    position: relative;
}
.nav-list a:hover {
    color: var(--c-blueprint);
    border-color: var(--c-blueprint);
    background: rgba(14,63,115,0.05);
}
.nav-list a.is-active {
    color: var(--c-paper);
    background: var(--c-blueprint);
    border-color: var(--c-blueprint);
}

.nav-coord {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-family: var(--f-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    color: var(--c-red);
    line-height: 1.2;
}

@media (max-width: 880px) {
    .drafting-nav {
        grid-template-columns: 1fr;
        padding: 12px 16px 12px 32px;
    }
    .nav-coord, .nav-stamp { display: none; }
    .nav-list { justify-content: flex-start; }
}

/* ===========================================================
   Sheet container — each section is a drafting sheet
   =========================================================== */

.sheet {
    position: relative;
    z-index: 5;
    padding: 80px 32px 80px 80px;
}

.sheet:nth-child(odd) {
    background: linear-gradient(to bottom, transparent, rgba(217,201,164,0.06));
}

.sheet-frame {
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
    padding: 56px 56px 64px;
    background: rgba(244,239,224,0.55);
    border: 1px solid var(--c-graphite);
    box-shadow:
        2px 2px 0 rgba(14,63,115,0.08),
        4px 4px 0 rgba(14,63,115,0.04);
}

.sheet-frame::before,
.sheet-frame::after {
    content: "";
    position: absolute;
    inset: 8px;
    pointer-events: none;
}

.sheet-frame::before {
    border: 1px solid rgba(14,63,115,0.5);
}
.sheet-frame::after {
    inset: 14px;
    border: 1px dashed rgba(14,63,115,0.2);
}

.sheet-corner-marker {
    position: absolute;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--c-blueprint);
    background: var(--c-paper);
    padding: 4px 8px;
    border: 1px solid var(--c-blueprint);
    z-index: 3;
}
.sheet-corner-marker.tl { top: -10px; left: 24px; }
.sheet-corner-marker.tr { top: -10px; right: 24px; }
.sheet-corner-marker.bl { bottom: -10px; left: 24px; }
.sheet-corner-marker.br {
    bottom: -10px;
    right: 24px;
    color: var(--c-red);
    border-color: var(--c-red);
}

@media (max-width: 720px) {
    .sheet { padding: 56px 16px 56px 32px; }
    .sheet-frame { padding: 40px 20px 48px; }
}

/* ===========================================================
   Title block (Sheet A)
   =========================================================== */

.title-block {
    border: 1px solid var(--c-graphite);
    background: var(--c-paper);
    margin-bottom: 48px;
    font-family: var(--f-mono);
}
.tb-row {
    display: grid;
    grid-template-columns: 120px 1fr 80px 1fr;
}
.tb-row + .tb-row {
    border-top: 1px solid var(--c-graphite);
}
.tb-cell {
    padding: 10px 14px;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-graphite);
}
.tb-key {
    background: var(--c-blueprint);
    color: var(--c-paper);
}
.tb-val {
    color: var(--c-blueprint);
    font-weight: 500;
}

@media (max-width: 720px) {
    .tb-row { grid-template-columns: 80px 1fr; }
    .tb-row .tb-cell:nth-child(3),
    .tb-row .tb-cell:nth-child(4) {
        border-top: 1px solid var(--c-graphite);
    }
}

/* ===========================================================
   Hero
   =========================================================== */

.hero { margin-bottom: 72px; }

.hero-meta {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: 24px;
    border-bottom: 1px dashed var(--c-blueprint);
    padding-bottom: 12px;
}
.hero-ko {
    font-family: var(--f-display);
    font-size: clamp(24px, 4vw, 40px);
    color: var(--c-blueprint);
    font-weight: 600;
    letter-spacing: 0.06em;
}
.hero-translit {
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    color: var(--c-graphite);
    text-transform: uppercase;
    opacity: 0.7;
}

.hero-title {
    font-family: var(--f-display);
    font-weight: 400;
    font-style: italic;
    font-size: clamp(48px, 8vw, 132px);
    line-height: 0.95;
    color: var(--c-midnight);
    letter-spacing: -0.02em;
    margin-bottom: 32px;
}
.title-line {
    display: block;
    overflow: hidden;
    position: relative;
}
.title-line > span {
    display: inline-block;
    transform: translateY(110%);
    transition: transform 900ms cubic-bezier(0.2, 0.7, 0.1, 1);
}
.title-line.is-visible > span { transform: translateY(0); }
.title-line.accent {
    color: var(--c-red);
    font-style: italic;
    position: relative;
}
.title-line.accent::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0.18em;
    width: 100%;
    height: 4px;
    background: var(--c-red);
    transform-origin: left center;
    transform: scaleX(0);
    transition: transform 800ms cubic-bezier(0.2, 0.7, 0.1, 1) 600ms;
}
.title-line.accent.is-visible::after { transform: scaleX(1); }

.hero-lede {
    max-width: 680px;
    font-size: clamp(18px, 1.6vw, 22px);
    line-height: 1.55;
    color: var(--c-graphite);
    margin-bottom: 48px;
    font-family: var(--f-sans);
    font-weight: 300;
}

.hero-meta-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--c-blueprint);
    background: var(--c-paper);
}
.meta-cell {
    padding: 22px 20px;
    border-right: 1px solid rgba(14,63,115,0.4);
}
.meta-cell:last-child { border-right: none; }
.meta-label {
    display: block;
    font-family: var(--f-mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--c-blueprint);
    text-transform: uppercase;
    margin-bottom: 8px;
}
.meta-value {
    display: block;
    font-family: var(--f-display);
    font-size: clamp(28px, 3vw, 44px);
    color: var(--c-midnight);
    line-height: 1;
    font-weight: 500;
}

@media (max-width: 720px) {
    .hero-meta-grid { grid-template-columns: repeat(2, 1fr); }
    .meta-cell:nth-child(2) { border-right: none; }
    .meta-cell:nth-child(1), .meta-cell:nth-child(2) {
        border-bottom: 1px solid rgba(14,63,115,0.4);
    }
}

/* ===========================================================
   Plan view (Sheet A)
   =========================================================== */

.plan-view {
    margin-top: 64px;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 32px;
    align-items: start;
}
.plan-svg {
    width: 100%;
    height: auto;
    border: 1px solid var(--c-blueprint);
    background: rgba(244,239,224,0.85);
    display: block;
}

.plan-svg .room rect {
    transition: fill 250ms ease, stroke-width 250ms ease;
}
.plan-svg .room:hover rect {
    fill: rgba(57,194,215,0.25);
    stroke-width: 2.4;
}

.plan-callouts {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.callout {
    border-left: 3px solid var(--c-blueprint);
    padding: 12px 16px;
    background: rgba(244,239,224,0.7);
    cursor: pointer;
    transition: background 200ms ease, border-color 200ms ease, transform 200ms ease;
}
.callout:hover {
    background: rgba(57,194,215,0.18);
    border-left-color: var(--c-red);
    transform: translateX(4px);
}
.callout.is-pinged {
    animation: ping 600ms ease;
}
@keyframes ping {
    0% { background: rgba(241,196,15,0.4); }
    100% { background: rgba(244,239,224,0.7); }
}

.callout-no {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 10px;
    color: var(--c-red);
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}
.callout-name {
    display: block;
    font-family: var(--f-display);
    font-size: 22px;
    color: var(--c-midnight);
    line-height: 1.1;
    margin-bottom: 6px;
}
.callout-desc {
    display: block;
    font-family: var(--f-sans);
    font-size: 13px;
    color: var(--c-graphite);
    opacity: 0.85;
}

@media (max-width: 880px) {
    .plan-view { grid-template-columns: 1fr; }
}

/* ===========================================================
   Sheet head (B–F)
   =========================================================== */

.sheet-head {
    margin-bottom: 56px;
    border-bottom: 1px solid var(--c-blueprint);
    padding-bottom: 24px;
}
.sheet-prefix {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--c-red);
    text-transform: uppercase;
    margin-bottom: 16px;
    padding: 4px 10px;
    border: 1px solid var(--c-red);
}
.sheet-title {
    font-family: var(--f-display);
    font-weight: 500;
    font-size: clamp(36px, 5vw, 72px);
    color: var(--c-midnight);
    line-height: 1;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}
.sheet-sub {
    font-family: var(--f-sans);
    font-weight: 300;
    font-size: clamp(15px, 1.2vw, 18px);
    color: var(--c-graphite);
    max-width: 620px;
}

/* ===========================================================
   Elevation (Sheet B)
   =========================================================== */

.elevation {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 24px;
    align-items: start;
}
.elevation-svg {
    width: 100%;
    height: auto;
    border: 1px solid var(--c-blueprint);
    background: rgba(244,239,224,0.85);
}
.elev-legend {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 18px 20px;
    border: 1px solid var(--c-graphite);
    background: var(--c-paper);
    min-width: 200px;
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.04em;
}
.legend-row {
    display: flex;
    align-items: center;
    gap: 12px;
}
.legend-swatch {
    display: inline-block;
    width: 20px;
    height: 12px;
    border: 1px solid var(--c-graphite);
}
.legend-swatch.hatched {
    background: repeating-linear-gradient(45deg, var(--c-blueprint) 0 1px, transparent 1px 4px);
}
.legend-swatch.dotted {
    background: radial-gradient(rgba(43,43,43,0.6) 1px, transparent 1px) 0 0/4px 4px;
}

@media (max-width: 880px) {
    .elevation { grid-template-columns: 1fr; }
}

/* ===========================================================
   Phases timeline (Sheet C)
   =========================================================== */

.phases {
    list-style: none;
    display: flex;
    flex-direction: column;
    counter-reset: phase;
}

.phase {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 20px;
    padding: 24px 0;
    position: relative;
}

.phase-rule {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 8px;
}
.phase-tick {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--c-paper);
    border: 2px solid var(--c-blueprint);
    position: relative;
    z-index: 2;
    transition: background 240ms ease, transform 240ms ease;
}
.phase.is-visible .phase-tick {
    background: var(--c-blueprint);
    transform: scale(1.1);
}
.phase-bar {
    flex: 1;
    width: 2px;
    background: var(--c-blueprint);
    margin-top: -2px;
    transform-origin: top center;
    transform: scaleY(0);
    transition: transform 700ms ease 200ms;
}
.phase.is-visible .phase-bar { transform: scaleY(1); }
.phase-bar.last { display: none; }

.phase-body {
    position: relative;
    padding-bottom: 12px;
}
.phase-no {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--c-red);
    margin-bottom: 6px;
}
.phase-name {
    font-family: var(--f-display);
    font-style: italic;
    font-weight: 500;
    font-size: clamp(28px, 3vw, 42px);
    color: var(--c-midnight);
    line-height: 1.05;
    margin-bottom: 8px;
}
.phase-desc {
    max-width: 640px;
    font-size: clamp(14px, 1.1vw, 17px);
    color: var(--c-graphite);
    margin-bottom: 10px;
    font-weight: 300;
}
.phase-meta {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--c-blueprint);
    background: rgba(14,63,115,0.06);
    padding: 4px 10px;
    border: 1px solid rgba(14,63,115,0.3);
}

/* ===========================================================
   Works grid (Sheet D)
   =========================================================== */

.works-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.work-card {
    position: relative;
    background: var(--c-paper);
    border: 1px solid var(--c-graphite);
    padding: 16px;
    cursor: pointer;
    transition: transform 280ms ease, box-shadow 280ms ease, border-color 280ms ease;
    overflow: hidden;
}
.work-card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 5px 5px 0 var(--c-blueprint);
    border-color: var(--c-blueprint);
}

.work-stamp {
    position: absolute;
    top: 14px;
    right: -28px;
    transform: rotate(20deg);
    font-family: var(--f-mono);
    font-size: 10px;
    letter-spacing: 0.16em;
    padding: 4px 36px;
    background: var(--c-blueprint);
    color: var(--c-paper);
    z-index: 2;
    pointer-events: none;
    box-shadow: 0 0 0 1px var(--c-paper) inset;
}
.work-stamp.ongoing { background: var(--c-yellow); color: var(--c-graphite); }
.work-stamp.archived { background: var(--c-graphite); color: var(--c-paper); }

.work-thumb {
    aspect-ratio: 10 / 7;
    background: var(--c-paper-deep);
    border: 1px solid rgba(14,63,115,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    overflow: hidden;
}
.thumb-svg {
    width: 100%;
    height: 100%;
    display: block;
}

.work-meta {
    padding: 4px 4px 8px;
}
.work-no {
    font-family: var(--f-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    color: var(--c-red);
    display: inline-block;
    margin-bottom: 6px;
}
.work-title {
    font-family: var(--f-display);
    font-weight: 500;
    font-size: 22px;
    color: var(--c-midnight);
    line-height: 1.15;
    margin-bottom: 8px;
}
.work-desc {
    font-size: 13px;
    color: var(--c-graphite);
    line-height: 1.5;
    font-weight: 300;
    margin-bottom: 12px;
}
.work-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.work-tags li {
    font-family: var(--f-mono);
    font-size: 10px;
    color: var(--c-blueprint);
    border: 1px solid rgba(14,63,115,0.4);
    padding: 2px 8px;
    letter-spacing: 0.08em;
}

@media (max-width: 980px) {
    .works-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .works-grid { grid-template-columns: 1fr; }
}

/* ===========================================================
   Materials (Sheet E)
   =========================================================== */

.materials {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 56px;
}
.swatch {
    background: var(--c-paper);
    border: 1px solid var(--c-graphite);
    overflow: hidden;
    transition: transform 280ms ease, box-shadow 280ms ease;
    cursor: pointer;
}
.swatch:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 0 -2px var(--c-blueprint);
}
.swatch-block {
    height: 110px;
    width: 100%;
    position: relative;
    transition: transform 600ms cubic-bezier(0.2,0.7,0.1,1);
}
.swatch:hover .swatch-block { transform: scaleX(1.04); }
.swatch-info {
    padding: 14px 16px 18px;
    border-top: 1px solid var(--c-graphite);
}
.swatch-no {
    font-family: var(--f-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    color: var(--c-red);
    display: inline-block;
    margin-bottom: 4px;
}
.swatch-info h4 {
    font-family: var(--f-display);
    font-weight: 500;
    font-size: 22px;
    color: var(--c-midnight);
    line-height: 1.05;
    margin-bottom: 4px;
}
.swatch-info code {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-blueprint);
    letter-spacing: 0.04em;
    display: block;
    margin-bottom: 10px;
}
.swatch-info p {
    font-size: 12.5px;
    color: var(--c-graphite);
    font-weight: 300;
    line-height: 1.45;
}

@media (max-width: 980px) { .materials { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .materials { grid-template-columns: 1fr; } }

.spec-table {
    border: 1px solid var(--c-graphite);
    background: var(--c-paper);
}
.spec-row {
    display: grid;
    grid-template-columns: 220px 1fr 1.4fr;
    border-top: 1px solid rgba(43,43,43,0.5);
    padding: 14px 18px;
    font-family: var(--f-mono);
    font-size: 12.5px;
    letter-spacing: 0.02em;
}
.spec-row:first-child { border-top: none; }
.spec-row.spec-head {
    background: var(--c-blueprint);
    color: var(--c-paper);
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.spec-row > span:nth-child(1) { color: var(--c-blueprint); font-weight: 500; }
.spec-row.spec-head > span { color: var(--c-paper); }
.spec-row > span:nth-child(2) { color: var(--c-graphite); }
.spec-row > span:nth-child(3) { color: var(--c-graphite); opacity: 0.78; }

@media (max-width: 720px) {
    .spec-row { grid-template-columns: 1fr; gap: 4px; padding: 10px 14px; }
    .spec-row.spec-head { display: none; }
}

/* ===========================================================
   Contact / Sheet F
   =========================================================== */

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-bottom: 48px;
}
.contact-card {
    border: 1px solid var(--c-blueprint);
    padding: 24px 22px;
    background: rgba(244,239,224,0.85);
    transition: background 240ms ease;
}
.contact-card:hover { background: rgba(57,194,215,0.12); }
.contact-label {
    display: block;
    font-family: var(--f-mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    color: var(--c-red);
    margin-bottom: 12px;
    text-transform: uppercase;
}
.contact-value {
    display: block;
    font-family: var(--f-display);
    font-weight: 500;
    font-size: 26px;
    color: var(--c-midnight);
    text-decoration: none;
    margin-bottom: 10px;
    line-height: 1.1;
}
a.contact-value { transition: color 240ms ease; }
a.contact-value:hover { color: var(--c-red); }
.contact-note {
    font-size: 13px;
    color: var(--c-graphite);
    font-weight: 300;
    line-height: 1.5;
}

@media (max-width: 720px) {
    .contact-grid { grid-template-columns: 1fr; }
}

/* ---------------- form ---------------- */
.brief-form {
    border: 1px solid var(--c-graphite);
    background: var(--c-paper);
    margin-bottom: 56px;
    overflow: hidden;
}
.form-head {
    background: var(--c-midnight);
    color: var(--c-paper);
    padding: 12px 18px;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.14em;
}
.form-row {
    display: grid;
    grid-template-columns: 130px 1fr;
    align-items: stretch;
    border-top: 1px solid rgba(43,43,43,0.5);
}
.form-row label {
    background: rgba(14,63,115,0.08);
    color: var(--c-blueprint);
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    padding: 18px 16px;
    border-right: 1px solid rgba(43,43,43,0.4);
    align-self: start;
    text-transform: uppercase;
}
.form-row input,
.form-row select,
.form-row textarea {
    border: none;
    outline: none;
    background: transparent;
    padding: 18px 18px;
    font: inherit;
    font-family: var(--f-sans);
    font-size: 16px;
    color: var(--c-graphite);
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
}
.form-row textarea { resize: vertical; min-height: 90px; }
.form-row input::placeholder,
.form-row textarea::placeholder { color: rgba(43,43,43,0.4); font-style: italic; }
.form-row.is-error label { background: rgba(192,57,43,0.18); color: var(--c-red); }

.form-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 18px;
    border-top: 1px solid rgba(43,43,43,0.5);
    background: rgba(14,63,115,0.04);
}
.form-submit {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--c-blueprint);
    color: var(--c-paper);
    border: none;
    padding: 12px 22px;
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.16em;
    cursor: pointer;
    transition: background 240ms ease, transform 240ms ease;
}
.form-submit:hover {
    background: var(--c-red);
    transform: translateX(4px);
}
.form-submit svg { transition: transform 240ms ease; }
.form-submit:hover svg { transform: translateX(2px); }

.form-status {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--c-blueprint);
    min-height: 14px;
}
.form-status.is-ok { color: var(--c-blueprint); }
.form-status.is-err { color: var(--c-red); }

@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
    .form-row label { border-right: none; border-bottom: 1px solid rgba(43,43,43,0.4); }
}

/* colophon */
.colophon { margin-top: 32px; }
.colo-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--c-blueprint);
    text-transform: uppercase;
}
.colo-dot { opacity: 0.5; }
.colo-rule {
    margin-top: 16px;
    gap: 0;
}
.colo-tick {
    display: inline-block;
    width: 8px;
    height: 8px;
    border: 1px solid var(--c-blueprint);
    transform: rotate(45deg);
}
.colo-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--c-blueprint), transparent);
    margin: 0 6px;
}

/* ===========================================================
   Reveal animations on scroll
   =========================================================== */

.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger helpers */
.stagger > * { transition-delay: calc(var(--i, 0) * 80ms); }

/* Print niceties */
@media print {
    .drafting-nav, .paper-grain, .rule-margin { display: none; }
    .sheet-frame { box-shadow: none; }
}