/* ============================================================
   archaic.studio
   anti-design brutalism // industrial archaeology
   palette: navy-metallic · typography: handwritten + mono (Google Fonts)
   ============================================================ */

:root {
    /* Palette — DESIGN.md */
    --c-bg-primary:   #0a1628; /* Deep Naval */
    --c-bg-secondary: #1a2744; /* Slate Iron */
    --c-bg-tertiary:  #0f1923; /* Charcoal Plate */
    --c-text-primary: #c0cde0; /* Silver Fog */
    --c-text-secondary: #b0bec5; /* Cool Silver */
    --c-accent-metal: #b08d57; /* Brushed Bronze */
    --c-accent-cold:  #4a6fa5; /* Arctic Steel */
    --c-divider:      #8a9bb5; /* Iron Wire */
    --c-emphasis:     #5d8a6b; /* Oxidized Copper */
    --c-noise-fill:   #2a3654; /* Static Gray */
    --c-ivory:        #e8e0d4; /* warm ivory accent */
    --c-mono-dim:     #6b7d99; /* muted steel blue for metadata */

    /* Typography */
    --font-display: "Caveat", "Comic Sans MS", cursive;
    --font-body:    "IBM Plex Sans", system-ui, -apple-system, sans-serif;
    --font-mono:    "IBM Plex Mono", "SF Mono", Menlo, monospace;
    --font-label:   "Anybody", "Arial Narrow", "Helvetica Neue", sans-serif;

    /* Spring easing — DESIGN.md */
    --spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);

    /* Dimensions */
    --rail-collapsed: 64px;
    --rail-expanded: 240px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--c-bg-primary);
    color: var(--c-text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    position: relative;
}

/* ----------------------------------------------------------
   Background noise layers
   ---------------------------------------------------------- */

.noise-layer {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.noise-coarse {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='400' height='400'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.015' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.35'/></svg>");
    opacity: 0.55;
    mix-blend-mode: overlay;
}

.noise-fine {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='4' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.14'/></svg>");
    opacity: 0.18;
    mix-blend-mode: screen;
    animation: noise-shift 8s steps(6) infinite;
}

@keyframes noise-shift {
    0%   { transform: translate(0, 0); }
    20%  { transform: translate(-6px, 4px); }
    40%  { transform: translate(5px, -3px); }
    60%  { transform: translate(-3px, -4px); }
    80%  { transform: translate(4px, 3px); }
    100% { transform: translate(0, 0); }
}

.schematic-layer {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
}

.schematic-layer .gate,
.schematic-layer .circuit-trace {
    transition: stroke 600ms var(--spring);
}

/* ----------------------------------------------------------
   Sidebar rail
   ---------------------------------------------------------- */

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: var(--rail-collapsed);
    background: var(--c-bg-primary);
    border-right: 1px solid var(--c-divider);
    z-index: 50;
    display: flex;
    flex-direction: column;
    padding: 24px 0;
    transition: width 600ms var(--spring);
    overflow: hidden;
}

.sidebar::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.12'/></svg>");
    pointer-events: none;
    opacity: 0.4;
}

.sidebar:hover,
.sidebar.is-open {
    width: var(--rail-expanded);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0 18px 24px 18px;
    border-bottom: 1px solid rgba(138, 155, 181, 0.18);
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.brand-mark {
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.18em;
    color: var(--c-accent-metal);
    white-space: nowrap;
}

.section-indicator {
    position: absolute;
    left: 0;
    top: 120px;
    width: 3px;
    height: 36px;
    background: var(--c-accent-metal);
    transition: transform 600ms var(--spring);
    z-index: 5;
    box-shadow: 0 0 8px rgba(176, 141, 87, 0.35);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: relative;
    z-index: 2;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 14px 18px;
    color: var(--c-text-secondary);
    text-decoration: none;
    position: relative;
    transition: color 300ms var(--spring), background 300ms var(--spring), transform 300ms var(--spring);
    white-space: nowrap;
}

.nav-item:hover {
    color: var(--c-accent-metal);
    background: rgba(176, 141, 87, 0.06);
    transform: translateX(3px);
}

.nav-item.is-active {
    color: var(--c-text-primary);
    background: rgba(74, 111, 165, 0.08);
}

.nav-item.is-active .nav-icon {
    color: var(--c-accent-metal);
}

.nav-icon {
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--c-text-secondary);
    transition: color 300ms var(--spring), transform 300ms var(--spring);
}

.nav-icon svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.nav-item:hover .nav-icon {
    transform: rotate(-4deg) scale(1.08);
}

.nav-label {
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateX(-8px);
    transition: opacity 400ms var(--spring) 80ms, transform 500ms var(--spring) 80ms;
}

.sidebar:hover .nav-label,
.sidebar.is-open .nav-label {
    opacity: 1;
    transform: translateX(0);
}

.sidebar-footer {
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--c-mono-dim);
    letter-spacing: 0.05em;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 500ms var(--spring) 120ms, transform 500ms var(--spring) 120ms;
    position: relative;
    z-index: 2;
}

.sidebar:hover .sidebar-footer,
.sidebar.is-open .sidebar-footer {
    opacity: 1;
    transform: translateY(0);
}

.foot-line {
    white-space: nowrap;
}

/* Mobile toggle — hidden by default */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 18px;
    right: 18px;
    width: 44px;
    height: 44px;
    background: var(--c-bg-secondary);
    border: 1px solid var(--c-divider);
    z-index: 60;
    cursor: pointer;
    padding: 12px 10px;
    flex-direction: column;
    justify-content: space-between;
}

.sidebar-toggle span {
    display: block;
    height: 1.5px;
    background: var(--c-text-primary);
    transition: transform 300ms var(--spring), opacity 300ms var(--spring);
}

/* ----------------------------------------------------------
   Scroll host
   ---------------------------------------------------------- */

.scroll-host {
    margin-left: var(--rail-collapsed);
    position: relative;
    z-index: 10;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    scroll-snap-type: y mandatory;
    scrollbar-width: thin;
    scrollbar-color: var(--c-divider) transparent;
}

.scroll-host::-webkit-scrollbar {
    width: 6px;
}
.scroll-host::-webkit-scrollbar-thumb {
    background: var(--c-divider);
    border-radius: 0;
}
.scroll-host::-webkit-scrollbar-track {
    background: transparent;
}

.section {
    position: relative;
    min-height: 100vh;
    padding: 6vh 6vw 14vh calc(6vw + 8px);
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    border-bottom: 1px solid rgba(138, 155, 181, 0.1);
}

/* Diagnostic overlays */
.diagnostic {
    position: absolute;
    top: 3vh;
    right: 3vw;
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: flex-end;
    background: rgba(15, 25, 35, 0.72);
    border: 1px solid rgba(138, 155, 181, 0.28);
    padding: 10px 14px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--c-mono-dim);
    letter-spacing: 0.05em;
    backdrop-filter: blur(4px);
    z-index: 20;
}

.diagnostic::before {
    content: "";
    position: absolute;
    top: 6px;
    left: 6px;
    width: 6px;
    height: 6px;
    background: var(--c-emphasis);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--c-emphasis);
    animation: diag-blink 1.8s var(--spring) infinite;
}

@keyframes diag-blink {
    0%, 45%, 100% { opacity: 1; }
    50%, 90% { opacity: 0.2; }
}

/* Noise separator bands */
.noise-band {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 8px;
    overflow: hidden;
    z-index: 5;
}

.band-inner {
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='600' height='8'><filter id='b'><feTurbulence type='fractalNoise' baseFrequency='1.2' numOctaves='2' stitchTiles='stitch' seed='0'/></filter><rect width='100%25' height='100%25' filter='url(%23b)' opacity='0.5'/></svg>");
    background-color: var(--c-noise-fill);
    mix-blend-mode: lighten;
}

/* ============================================================
   Section 0 — Boot terminal
   ============================================================ */

.section-boot {
    background: var(--c-bg-primary);
    justify-content: center;
}

.boot-terminal {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    max-width: 1100px;
    width: 100%;
}

.terminal-frame {
    background: var(--c-bg-tertiary);
    border: 1px solid rgba(138, 155, 181, 0.28);
    box-shadow:
        0 0 0 1px rgba(10, 22, 40, 1),
        0 0 30px rgba(74, 111, 165, 0.06) inset,
        0 24px 60px rgba(0, 0, 0, 0.45);
    position: relative;
    max-width: 760px;
}

.terminal-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        rgba(192, 205, 224, 0.02) 0px,
        rgba(192, 205, 224, 0.02) 2px,
        transparent 2px,
        transparent 4px
    );
    pointer-events: none;
    mix-blend-mode: overlay;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-bottom: 1px solid rgba(138, 155, 181, 0.18);
    background: rgba(10, 22, 40, 0.6);
}

.header-dot {
    width: 9px;
    height: 9px;
    background: var(--c-mono-dim);
    border-radius: 50%;
    opacity: 0.6;
}

.header-dot:nth-child(1) { background: var(--c-accent-metal); }
.header-dot:nth-child(2) { background: var(--c-accent-cold); }
.header-dot:nth-child(3) { background: var(--c-emphasis); }

.header-title {
    margin-left: 10px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--c-mono-dim);
    letter-spacing: 0.05em;
}

.terminal-body {
    padding: 22px 24px 26px;
    font-family: var(--font-mono);
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--c-text-primary);
    min-height: 260px;
}

.terminal-line {
    display: block;
    white-space: pre-wrap;
    color: var(--c-text-primary);
    opacity: 0;
}

.terminal-line.is-typing,
.terminal-line.is-done {
    opacity: 1;
}

.terminal-line.final {
    color: var(--c-accent-metal);
}

.terminal-line .cursor {
    display: inline-block;
    width: 0.6ch;
    height: 1em;
    background: var(--c-text-primary);
    vertical-align: -0.15em;
    margin-left: 2px;
    animation: cursor-blink 0.9s steps(2) infinite;
}

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

.boot-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 800ms var(--spring), transform 900ms var(--spring);
}

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

.boot-tagline {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--c-mono-dim);
    margin: 0 0 8px 0;
}

.boot-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3.2rem, 9vw, 7.2rem);
    line-height: 1.02;
    letter-spacing: 0.01em;
    color: var(--c-text-primary);
    margin: 0 0 14px 0;
    text-shadow: 1px 0 0 rgba(176, 141, 87, 0.08), -1px 0 0 rgba(74, 111, 165, 0.08);
}

.title-dot {
    color: var(--c-accent-metal);
}

.boot-sub {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.55;
    max-width: 52ch;
    color: var(--c-text-secondary);
    margin: 0;
}

/* ============================================================
   Section 1 — Manifesto (38/62 staggered grid)
   ============================================================ */

.section-manifesto {
    background: var(--c-bg-primary);
    justify-content: center;
    gap: 64px;
}

.manifesto-grid {
    display: grid;
    grid-template-columns: 38fr 62fr;
    gap: 0;
    position: relative;
    max-width: 1400px;
    width: 100%;
    align-items: start;
}

.manifesto-grid::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 38%;
    width: 2px;
    background: var(--c-divider);
    opacity: 0.55;
}

.col-left {
    padding: 0 40px 0 0;
    margin-top: 48px; /* stutter offset */
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.col-right {
    padding: 0 0 0 40px;
}

.col-label {
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.78rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--c-accent-metal);
}

.col-body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--c-ivory);
    max-width: 42ch;
    margin: 0;
}

.col-meta {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    color: var(--c-mono-dim);
    margin-top: 8px;
}

.manifesto-headline {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3.2rem, 8vw, 6.2rem);
    line-height: 1.02;
    letter-spacing: 0.01em;
    color: var(--c-text-primary);
    margin: 0 0 26px 0;
    position: relative;
}

.manifesto-headline .line {
    display: block;
    position: relative;
}

.manifesto-headline .line:nth-child(2) {
    padding-left: 2em;
    color: var(--c-accent-metal);
}

.manifesto-sub {
    font-family: var(--font-body);
    font-size: 1.15rem;
    line-height: 1.55;
    color: var(--c-text-secondary);
    max-width: 48ch;
    margin: 0;
}

.manifesto-sub em {
    font-style: italic;
    color: var(--c-emphasis);
}

/* Marquee ticker */
.manifesto-ticker {
    margin-top: auto;
    display: flex;
    gap: 48px;
    overflow: hidden;
    white-space: nowrap;
    border-top: 1px solid rgba(138, 155, 181, 0.18);
    border-bottom: 1px solid rgba(138, 155, 181, 0.18);
    padding: 14px 0;
    font-family: var(--font-label);
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.82rem;
    color: var(--c-divider);
    mask-image: linear-gradient(to right, transparent 0, black 10%, black 90%, transparent 100%);
    position: relative;
    z-index: 3;
}

.manifesto-ticker span {
    display: inline-block;
    animation: ticker 40s linear infinite;
    flex: 0 0 auto;
}

@keyframes ticker {
    from { transform: translateX(0); }
    to   { transform: translateX(-100%); }
}

/* ============================================================
   Section 2 — Work grid (broken layout)
   ============================================================ */

.section-work {
    background: var(--c-bg-primary);
    gap: 40px;
}

.work-head {
    max-width: 820px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.label-tag {
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.78rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--c-accent-metal);
}

.work-title,
.process-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2.6rem, 6.5vw, 5rem);
    line-height: 1.05;
    letter-spacing: 0.01em;
    color: var(--c-text-primary);
    margin: 4px 0 6px 0;
}

.work-sub {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--c-text-secondary);
    max-width: 56ch;
    margin: 0;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px 32px;
    align-items: start;
    margin-top: 30px;
}

.work-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    transform: translateY(var(--offset-y, 0));
    transition: transform 600ms var(--spring), filter 400ms var(--spring);
    cursor: pointer;
    will-change: transform;
}

.work-card:hover {
    transform: translateY(calc(var(--offset-y, 0) - 6px)) scale(1.04);
}

.card-thumb {
    position: relative;
    background: var(--c-bg-tertiary);
    border: 1px solid var(--c-divider);
    overflow: hidden;
    aspect-ratio: 10 / 7;
    width: 100%;
    transition: border-color 400ms var(--spring), box-shadow 400ms var(--spring);
}

.work-card:hover .card-thumb {
    border-color: var(--c-accent-metal);
    box-shadow: 0 0 0 1px var(--c-accent-metal), 0 0 30px rgba(176, 141, 87, 0.2);
}

.card-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(transparent 50%, rgba(10, 22, 40, 0.3) 100%),
        repeating-linear-gradient(
            0deg,
            rgba(192, 205, 224, 0.03) 0,
            rgba(192, 205, 224, 0.03) 1px,
            transparent 1px,
            transparent 3px
        );
    pointer-events: none;
}

.card-thumb svg {
    width: 100%;
    height: 100%;
    display: block;
}

.card-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.meta-index {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    color: var(--c-mono-dim);
}

.meta-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.9rem;
    letter-spacing: 0.01em;
    margin: 0;
    color: var(--c-text-primary);
}

.work-card:hover .meta-title {
    color: var(--c-accent-metal);
}

.meta-kind {
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--c-divider);
}

/* ============================================================
   Section 3 — Process (oscilloscope + three blocks)
   ============================================================ */

.section-process {
    background: var(--c-bg-primary);
    gap: 36px;
}

.process-head {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-width: 720px;
}

.oscilloscope {
    position: relative;
    background: var(--c-bg-tertiary);
    border: 1px solid var(--c-divider);
    height: 220px;
    overflow: hidden;
}

.scope-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, rgba(138, 155, 181, 0.14) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(138, 155, 181, 0.14) 1px, transparent 1px);
    background-size: 80px 44px;
}

.scope-grid::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100' height='100'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.18'/></svg>");
    mix-blend-mode: screen;
    opacity: 0.35;
}

.scope-trace {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.scope-trace path {
    stroke-dasharray: 3400;
    stroke-dashoffset: 3400;
    filter: drop-shadow(0 0 4px rgba(93, 138, 107, 0.55));
    transition: stroke-dashoffset 2600ms var(--spring);
}

.scope-trace.is-drawn path {
    stroke-dashoffset: 0;
}

.scope-readout {
    position: absolute;
    top: 10px;
    right: 14px;
    display: flex;
    gap: 18px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.06em;
    color: var(--c-emphasis);
    text-transform: uppercase;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
    margin-top: 6px;
}

.process-block {
    transform: translateY(var(--offset, 0));
    padding: 20px 22px;
    border-left: 2px solid var(--c-divider);
    background: linear-gradient(180deg, rgba(26, 39, 68, 0.35) 0%, rgba(26, 39, 68, 0) 100%);
    transition: transform 600ms var(--spring), border-color 400ms var(--spring);
}

.process-block:hover {
    transform: translateY(calc(var(--offset, 0) - 8px));
    border-left-color: var(--c-accent-metal);
}

.block-num {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    color: var(--c-mono-dim);
}

.block-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 2.8rem;
    line-height: 1;
    margin: 6px 0 12px 0;
    color: var(--c-text-primary);
}

.process-block:hover .block-title {
    color: var(--c-accent-metal);
}

.block-body {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--c-text-secondary);
    max-width: 42ch;
    margin: 0;
}

/* ============================================================
   Section 4 — Contact (radical emptiness)
   ============================================================ */

.section-contact {
    background: var(--c-bg-primary);
    justify-content: center;
    gap: 0;
}

.contact-void {
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: var(--font-mono);
    font-size: clamp(1.1rem, 2.4vw, 1.9rem);
    color: var(--c-text-primary);
    letter-spacing: 0.02em;
    margin: auto 0;
}

.contact-prefix {
    color: var(--c-accent-metal);
}

.contact-address {
    border-bottom: 1px solid transparent;
    transition: border-color 300ms var(--spring), color 300ms var(--spring);
    cursor: pointer;
}

.contact-address:hover {
    color: var(--c-accent-metal);
    border-bottom-color: var(--c-accent-metal);
}

.contact-cursor {
    display: inline-block;
    width: 0.6em;
    height: 1.1em;
    background: var(--c-accent-metal);
    animation: cursor-blink 1s steps(2) infinite;
    box-shadow: 0 0 10px rgba(176, 141, 87, 0.4);
}

.contact-footer {
    position: absolute;
    bottom: 6vh;
    left: calc(6vw + 8px);
    right: 6vw;
    display: flex;
    gap: 24px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    color: var(--c-mono-dim);
    border-top: 1px solid rgba(138, 155, 181, 0.18);
    padding-top: 14px;
}

/* ============================================================
   Magnetic / displacement effects
   ============================================================ */

.magnetic-char {
    display: inline-block;
    transition: transform 300ms var(--spring), color 300ms var(--spring);
    will-change: transform;
}

/* Glitch effect (applied via JS) */
.is-glitching {
    animation: glitch 120ms steps(2) 1;
}

@keyframes glitch {
    0%   { transform: translateX(0); text-shadow: 0 0 0 transparent; }
    30%  { transform: translateX(-3px); text-shadow: 1px 0 0 #b08d57, -1px 0 0 #4a6fa5; }
    60%  { transform: translateX(4px); text-shadow: -1px 0 0 #b08d57, 1px 0 0 #4a6fa5; }
    100% { transform: translateX(0); text-shadow: 0 0 0 transparent; }
}

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

.section [data-magnetic],
.manifesto-grid,
.work-grid,
.process-grid,
.oscilloscope,
.boot-reveal,
.contact-void,
.contact-footer {
    transition: opacity 800ms var(--spring), transform 900ms var(--spring);
}

.section.is-entering [data-magnetic],
.section.is-entering .manifesto-grid,
.section.is-entering .work-grid,
.section.is-entering .process-grid,
.section.is-entering .oscilloscope {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 900px) {
    .sidebar {
        width: var(--rail-collapsed);
        transform: translateX(-100%);
        transition: transform 500ms var(--spring), width 500ms var(--spring);
    }

    .sidebar.is-open {
        transform: translateX(0);
        width: var(--rail-expanded);
    }

    .scroll-host {
        margin-left: 0;
    }

    .sidebar-toggle {
        display: flex;
    }

    .manifesto-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .manifesto-grid::before {
        display: none;
    }

    .col-left,
    .col-right {
        padding: 0;
        margin-top: 0;
    }

    .manifesto-headline .line:nth-child(2) {
        padding-left: 1em;
    }

    .work-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .work-card {
        transform: translateY(0) !important;
    }

    .process-grid {
        grid-template-columns: 1fr;
    }

    .process-block {
        transform: translateY(0);
    }

    .diagnostic {
        font-size: 0.65rem;
        padding: 8px 10px;
    }

    .section {
        padding: 8vh 5vw 14vh 5vw;
    }
}

@media (max-width: 560px) {
    .work-grid {
        grid-template-columns: 1fr;
    }

    .contact-footer {
        flex-direction: column;
        gap: 6px;
    }
}