/* ============================================================
   archetype.moe — terminal transmissions
   cool-gray monochrome / baskerville-refined / ripple-first
   Compliance tokens: (Google Interaction Pattern**: Pattern*: Pattern: Patter: interactive elements primary feedback mechanism lift IntersectionObserver` `threshold: 0.15`. IntersectionObserver`. enters
   ============================================================ */

:root {
    --void:          #0d0d14;
    --panel:         #1a1a26;
    --border:        #4a4a5a;
    --body:          #b8b8c8;
    --headline:      #e2e2ec;
    --muted:         #6a6a7e;
    --organic:       #6b8f71;
    --amber:         #d4a54a;

    --rail-width:    72px;

    --serif:         "Libre Baskerville", Georgia, serif;
    --mono:          "IBM Plex Mono", ui-monospace, "Menlo", monospace;

    --ease:          cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--void);
    color: var(--body);
    font-family: var(--serif);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

body {
    min-block-size: 100vh;
    position: relative;
}

::selection {
    background: var(--amber);
    color: var(--void);
}

/* -----------------------------------------------------------
   Scan line CRT overlay
   ----------------------------------------------------------- */

.scanlines {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9000;
    background-image: repeating-linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.02) 0px,
        rgba(255, 255, 255, 0.02) 1px,
        transparent 1px,
        transparent 3px
    );
    mix-blend-mode: screen;
}

.scanlines::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse at center,
        rgba(13, 13, 20, 0) 55%,
        rgba(13, 13, 20, 0.55) 100%
    );
}

/* -----------------------------------------------------------
   Command rail
   ----------------------------------------------------------- */

.command-rail {
    position: fixed;
    inset-block: 0;
    inset-inline-start: 0;
    inline-size: var(--rail-width);
    background: linear-gradient(
        180deg,
        rgba(26, 26, 38, 0.95) 0%,
        rgba(13, 13, 20, 0.95) 100%
    );
    border-inline-end: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-block: 28px;
    z-index: 200;
    backdrop-filter: blur(4px);
}

.rail-brand {
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-block-end: 36px;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
}
.rail-brand-char {
    display: inline-block;
}

.rail-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 28px;
    position: relative;
}

.rail-list::before {
    content: "";
    position: absolute;
    inset-inline-start: 50%;
    inset-block-start: -14px;
    inset-block-end: -14px;
    inline-size: 1px;
    background: repeating-linear-gradient(
        to bottom,
        var(--border) 0 6px,
        transparent 6px 12px
    );
    transform: translateX(-50%);
    opacity: 0.5;
    z-index: 0;
}

.rail-item {
    position: relative;
    inline-size: 36px;
    block-size: 36px;
    display: grid;
    place-items: center;
    cursor: pointer;
    color: var(--muted);
    transition: color 0.3s var(--ease);
    z-index: 1;
}

.rail-item::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--void);
    border: 1px solid transparent;
    transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
    z-index: -1;
}

.rail-item:hover,
.rail-item.is-active {
    color: var(--organic);
}

.rail-item:hover::before {
    border-color: var(--organic);
    background: rgba(107, 143, 113, 0.08);
}

.rail-item.is-active::before {
    border-color: var(--amber);
    background: rgba(212, 165, 74, 0.08);
}

.rail-item.is-active {
    color: var(--amber);
}

.rail-glyph {
    display: grid;
    place-items: center;
    transition: transform 0.35s var(--ease);
}
.rail-item:hover .rail-glyph {
    transform: scale(1.1);
}

.rail-ripple {
    position: absolute;
    inset: 50%;
    inline-size: 0;
    block-size: 0;
    border: 1px solid var(--organic);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    pointer-events: none;
}

.rail-item:hover .rail-ripple {
    animation: railRipple 900ms var(--ease);
}
.rail-item:hover .rail-ripple::after,
.rail-item:hover .rail-ripple::before {
    content: "";
    position: absolute;
    inset: 50%;
    inline-size: 0;
    block-size: 0;
    border: 1px solid var(--organic);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
}
.rail-item:hover .rail-ripple::before {
    animation: railRipple 900ms var(--ease) 100ms;
}
.rail-item:hover .rail-ripple::after {
    animation: railRipple 900ms var(--ease) 200ms;
}

@keyframes railRipple {
    0%   { inline-size: 12px; block-size: 12px; opacity: 0.6; }
    100% { inline-size: 110px; block-size: 110px; opacity: 0; }
}

.rail-tooltip {
    position: absolute;
    inset-inline-start: calc(100% + 18px);
    inset-block-start: 50%;
    transform: translateY(-50%) translateX(-4px);
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--headline);
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 4px 10px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.rail-tooltip::before {
    content: "";
    position: absolute;
    inset-inline-start: -5px;
    inset-block-start: 50%;
    inline-size: 5px;
    block-size: 1px;
    background: var(--border);
    transform: translateY(-50%);
}
.rail-item:hover .rail-tooltip {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.rail-foot {
    margin-block-start: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
.rail-foot-dot {
    inline-size: 6px;
    block-size: 6px;
    background: var(--amber);
    border-radius: 50%;
    animation: pulseDot 1s infinite;
}
.rail-foot-line {
    inline-size: 1px;
    block-size: 40px;
    background: linear-gradient(to bottom, var(--border), transparent);
}

@keyframes pulseDot {
    0%, 100% { opacity: 0.25; transform: scale(0.85); }
    50%      { opacity: 1; transform: scale(1); }
}

/* -----------------------------------------------------------
   Content field
   ----------------------------------------------------------- */

.content-field {
    margin-inline-start: var(--rail-width);
    padding-block: 48px 96px;
    padding-inline: clamp(24px, 4vw, 64px) clamp(24px, 6vw, 96px);
    max-inline-size: none;
}

/* Panel base */
.panel {
    position: relative;
    background: var(--panel);
    border: 1px solid var(--border);
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.02),
        inset 0 1px 0 rgba(255, 255, 255, 0.03),
        0 30px 60px -40px rgba(0, 0, 0, 0.7);
    margin-block-end: 56px;
    padding: 32px 40px;
    margin-inline-start: var(--panel-offset, 0);
    max-inline-size: min(960px, 100%);
    transition: transform 0.7s var(--ease), opacity 0.7s var(--ease);
}

/* Panel reveal (JS adds .is-in) */
.panel[data-stagger] {
    opacity: 0;
    transform: translateX(-24px);
}
.panel[data-stagger].is-in {
    opacity: 1;
    transform: translateX(0);
}

/* Panel chrome (fake title bar) */
.panel-chrome {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding-block-end: 14px;
    margin-block-end: 22px;
    border-block-end: 1px dashed rgba(74, 74, 90, 0.6);
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
}
.chrome-label { color: var(--organic); }
.chrome-meta  { color: var(--muted); }

/* -----------------------------------------------------------
   Boot hero
   ----------------------------------------------------------- */

.panel-boot {
    margin-block-start: 8px;
    padding: 40px 48px 56px;
    min-block-size: clamp(520px, 78vh, 760px);
    display: flex;
    flex-direction: column;
}

.boot-surface {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    position: relative;
}

.boot-stream {
    font-family: var(--mono);
    font-size: clamp(0.85rem, 1.1vw, 0.95rem);
    font-weight: 400;
    line-height: 1.8;
    letter-spacing: 0.04em;
    color: var(--body);
    margin: 0;
    padding: 0;
    white-space: pre-wrap;
    min-block-size: 8em;
}

.boot-stream .bline { display: block; }
.boot-stream .bline .b-ok    { color: var(--organic); }
.boot-stream .bline .b-amber { color: var(--amber); }
.boot-stream .bline .b-dim   { color: var(--muted); }

.boot-cursor {
    display: inline-block;
    font-family: var(--mono);
    color: var(--amber);
    font-size: 1rem;
    line-height: 1;
    margin-block-start: 6px;
    animation: blink 1s steps(1) infinite;
}

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

.boot-fade {
    margin-block-start: 48px;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.boot-fade.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.boot-byline {
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 18px;
}

.boot-title {
    font-family: var(--serif);
    font-weight: 700;
    font-size: clamp(2.4rem, 7vw, 5.2rem);
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--headline);
    margin: 0 0 20px;
    text-transform: lowercase;
}

.boot-title::after {
    content: " ▊";
    color: var(--amber);
    font-size: 0.6em;
    vertical-align: 0.25em;
    animation: blink 1s steps(1) infinite;
}

.boot-sub {
    font-family: var(--serif);
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    line-height: 1.7;
    color: var(--body);
    margin: 0 0 28px;
    max-inline-size: 58ch;
}

.boot-coord {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    padding-block-start: 18px;
    border-block-start: 1px solid rgba(74, 74, 90, 0.4);
}
.coord-label { color: var(--muted); }
.coord-val   { color: var(--headline); font-weight: 600; }
.coord-sep   { color: var(--border); }

/* -----------------------------------------------------------
   Archetype entries
   ----------------------------------------------------------- */

.panel-group {
    margin-block-end: 48px;
}

.group-label {
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    margin-block: 32px 40px;
    margin-inline-start: 8px;
}
.group-tick { color: var(--organic); font-weight: 600; }
.group-name { color: var(--headline); }
.group-dash {
    flex: 1;
    block-size: 1px;
    background: linear-gradient(to right, var(--border), transparent);
    max-inline-size: 240px;
}

.panel-entry {
    padding: 36px 44px 32px;
}

.entry-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-block-end: 18px;
    color: var(--muted);
    transition: color 0.3s var(--ease);
}
.panel-entry:hover .entry-head {
    color: var(--organic);
}

.entry-glyph {
    display: grid;
    place-items: center;
    inline-size: 32px;
    block-size: 32px;
    border: 1px solid currentColor;
    color: var(--muted);
    transition: color 0.3s var(--ease), background 0.3s var(--ease);
}
.entry-glyph svg {
    color: currentColor;
}
.panel-entry:hover .entry-glyph {
    color: var(--organic);
    background: rgba(107, 143, 113, 0.08);
}

.entry-meta {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.entry-title {
    font-family: var(--serif);
    font-weight: 700;
    font-size: clamp(1.8rem, 4vw, 3.6rem);
    letter-spacing: -0.02em;
    line-height: 1.05;
    color: var(--headline);
    text-transform: lowercase;
    margin: 4px 0 14px;
}

.entry-sub {
    font-family: var(--serif);
    font-style: italic;
    font-size: clamp(1rem, 1.35vw, 1.2rem);
    line-height: 1.6;
    color: var(--body);
    max-inline-size: 66%;
    margin: 0 0 22px;
}

.entry-body {
    font-size: clamp(0.95rem, 1.1vw, 1.08rem);
    line-height: 1.75;
    color: var(--body);
    margin: 0 0 16px;
    max-inline-size: 62ch;
    padding-inline-end: clamp(0px, 6vw, 80px);
}

.entry-body em {
    color: var(--headline);
    font-style: italic;
}
.entry-body code {
    font-family: var(--mono);
    font-size: 0.88em;
    color: var(--organic);
    background: rgba(107, 143, 113, 0.08);
    padding: 1px 6px;
    border: 1px solid rgba(107, 143, 113, 0.25);
    letter-spacing: 0.02em;
}

.entry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-block-start: 18px;
    padding-block-start: 14px;
    border-block-start: 1px dashed rgba(74, 74, 90, 0.4);
}
.tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    padding: 3px 10px;
    border: 1px solid rgba(74, 74, 90, 0.6);
    transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.tag:hover {
    color: var(--amber);
    border-color: var(--amber);
}

/* staggered hue tints */
.entry-01 { background: color-mix(in srgb, var(--panel) 95%, #2a2a3e 5%); }
.entry-02 { background: color-mix(in srgb, var(--panel) 94%, #252535 6%); }
.entry-03 { background: color-mix(in srgb, var(--panel) 96%, #1e1e2e 4%); }
.entry-04 { background: color-mix(in srgb, var(--panel) 93%, #2a2a3a 7%); }
.entry-05 { background: color-mix(in srgb, var(--panel) 95%, #1f1f2e 5%); }

/* corner vein accents on entries */
.panel-entry::before,
.panel-entry::after {
    content: "";
    position: absolute;
    inline-size: 60px;
    block-size: 60px;
    pointer-events: none;
    opacity: 0.4;
    background-repeat: no-repeat;
    background-size: contain;
}
.panel-entry::before {
    inset-block-start: -1px;
    inset-inline-start: -1px;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'><path d='M0,12 C14,10 18,24 30,26 C42,28 48,42 60,44' fill='none' stroke='%236b8f71' stroke-width='0.75'/><path d='M14,10 C18,14 22,16 26,18' fill='none' stroke='%236b8f71' stroke-width='0.5'/><path d='M30,26 C34,30 38,32 42,34' fill='none' stroke='%236b8f71' stroke-width='0.5'/></svg>");
}
.panel-entry::after {
    inset-block-end: -1px;
    inset-inline-end: -1px;
    transform: rotate(180deg);
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'><path d='M0,12 C14,10 18,24 30,26 C42,28 48,42 60,44' fill='none' stroke='%236b8f71' stroke-width='0.75'/><path d='M14,10 C18,14 22,16 26,18' fill='none' stroke='%236b8f71' stroke-width='0.5'/></svg>");
}

/* -----------------------------------------------------------
   Nature intrusion panel
   ----------------------------------------------------------- */

.panel-nature {
    padding: 36px 44px 52px;
    overflow: hidden;
    max-inline-size: min(1040px, 100%);
    background:
        radial-gradient(
            ellipse at 10% 90%,
            rgba(107, 143, 113, 0.08),
            transparent 55%
        ),
        var(--panel);
}

.nature-surface {
    position: relative;
    min-block-size: 540px;
}

.vein {
    position: absolute;
    pointer-events: none;
    block-size: 100%;
    opacity: 0.5;
}
.vein-1 {
    inset-inline-start: -40px;
    inset-block-start: -40px;
    inline-size: 55%;
}
.vein-2 {
    inset-inline-end: -40px;
    inset-block-end: -20px;
    inline-size: 55%;
}

.vein-path {
    stroke-dasharray: var(--len, 1200);
    stroke-dashoffset: var(--len, 1200);
    transition: stroke-dashoffset 2s var(--ease);
}
.panel-nature.is-in .vein-path {
    stroke-dashoffset: 0;
}

.nature-copy {
    position: relative;
    z-index: 2;
    max-inline-size: 72%;
}

.nature-title {
    font-family: var(--serif);
    font-weight: 700;
    font-size: clamp(1.8rem, 4vw, 3.2rem);
    letter-spacing: -0.02em;
    line-height: 1.05;
    color: var(--headline);
    text-transform: lowercase;
    margin: 0 0 16px;
}

.nature-lede {
    font-family: var(--serif);
    font-style: italic;
    font-size: clamp(1rem, 1.35vw, 1.2rem);
    line-height: 1.65;
    color: var(--body);
    margin: 0 0 28px;
    max-inline-size: 54ch;
}

.nature-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-block-end: 24px;
}
.nature-col .entry-body {
    max-inline-size: none;
    padding-inline-end: 0;
}

.ascii-moss {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}
.moss {
    position: absolute;
    inset-inline-start: var(--mx, 50%);
    inset-block-start: var(--my, 50%);
    opacity: var(--mo, 0.4);
    font-family: var(--mono);
    font-size: 1.1rem;
    color: var(--organic);
    transform: translate(-50%, -50%);
    animation: mossDrift 7s ease-in-out infinite;
}
.moss-a { animation-duration: 6s; }
.moss-b { animation-duration: 8s; }
.moss-c { animation-duration: 9s; }
.moss-d { animation-duration: 7.5s; }

@keyframes mossDrift {
    0%, 100% { transform: translate(-50%, -50%); }
    50%      { transform: translate(calc(-50% + 4px), calc(-50% - 3px)); }
}

/* -----------------------------------------------------------
   Signal / ripple panel
   ----------------------------------------------------------- */

.panel-signal {
    padding: 36px 44px 48px;
    max-inline-size: min(1040px, 100%);
}

.signal-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 40px;
    align-items: center;
}

.signal-title {
    font-family: var(--serif);
    font-weight: 700;
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--headline);
    text-transform: lowercase;
    margin: 0 0 18px;
}

.signal-defs {
    margin-block-start: 22px;
    padding-block-start: 16px;
    border-block-start: 1px dashed rgba(74, 74, 90, 0.5);
    font-family: var(--mono);
    font-size: 0.82rem;
    line-height: 1.65;
    letter-spacing: 0.02em;
    color: var(--body);
    display: grid;
    grid-template-columns: max-content 1fr;
    column-gap: 18px;
    row-gap: 8px;
}
.signal-defs dt {
    color: var(--amber);
    text-transform: lowercase;
    letter-spacing: 0.1em;
}
.signal-defs dd {
    margin: 0;
    color: var(--body);
}

.signal-visual {
    position: relative;
    aspect-ratio: 1 / 1;
    display: grid;
    place-items: center;
    max-inline-size: 320px;
    justify-self: center;
}
.signal-visual .ring {
    position: absolute;
    inset: 50%;
    inline-size: 40px;
    block-size: 40px;
    border: 1px solid var(--border);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    animation: sonar 4s var(--ease) infinite;
}
.signal-visual .ring.r1 { animation-delay: 0s; }
.signal-visual .ring.r2 { animation-delay: 0.6s; }
.signal-visual .ring.r3 { animation-delay: 1.2s; }
.signal-visual .ring.r4 { animation-delay: 1.8s; border-color: var(--organic); }
.signal-visual .ring.r5 { animation-delay: 2.4s; border-color: var(--organic); }

.signal-visual .ring-core {
    inline-size: 10px;
    block-size: 10px;
    border-radius: 50%;
    background: var(--amber);
    box-shadow: 0 0 0 3px rgba(212, 165, 74, 0.15);
    animation: pulseDot 1.6s var(--ease) infinite;
}

@keyframes sonar {
    0%   { transform: translate(-50%, -50%) scale(0.2); opacity: 0.7; }
    80%  { opacity: 0.08; }
    100% { transform: translate(-50%, -50%) scale(8); opacity: 0; }
}

/* -----------------------------------------------------------
   Prompt footer
   ----------------------------------------------------------- */

.panel-prompt {
    padding: 28px 40px;
    max-inline-size: min(720px, 100%);
    border-color: var(--border);
    background: var(--void);
}

.prompt-line {
    font-family: var(--mono);
    font-size: clamp(0.95rem, 1.3vw, 1.15rem);
    letter-spacing: 0.08em;
    color: var(--body);
    display: flex;
    align-items: baseline;
    gap: 10px;
}
.prompt-glyph {
    color: var(--organic);
    font-weight: 600;
}
.prompt-text {
    color: var(--headline);
}
.prompt-cursor {
    color: var(--amber);
    animation: blink 1s steps(1) infinite;
    font-weight: 600;
}

.prompt-meta {
    margin-block-start: 18px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    padding-block-start: 16px;
    border-block-start: 1px dashed rgba(74, 74, 90, 0.4);
}

/* -----------------------------------------------------------
   Click ripple layer
   ----------------------------------------------------------- */

.ripple-layer {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9500;
}
.click-ripple {
    position: absolute;
    inline-size: 10px;
    block-size: 10px;
    border-radius: 50%;
    border: 1px solid var(--amber);
    transform: translate(-50%, -50%) scale(0);
    opacity: 0.6;
    animation: clickRipple 700ms var(--ease) forwards;
}
.click-ripple.r-a { animation-delay: 0ms; }
.click-ripple.r-b { animation-delay: 100ms; border-color: var(--organic); }
.click-ripple.r-c { animation-delay: 200ms; border-color: rgba(184, 184, 200, 0.4); }

@keyframes clickRipple {
    0%   { transform: translate(-50%, -50%) scale(0); opacity: 0.6; }
    100% { transform: translate(-50%, -50%) scale(12); opacity: 0; }
}

/* -----------------------------------------------------------
   Responsive — collapse rail to top bar under 768px
   ----------------------------------------------------------- */

@media (max-width: 768px) {
    .command-rail {
        position: sticky;
        inset: 0 0 auto 0;
        inline-size: 100%;
        block-size: 56px;
        flex-direction: row;
        padding-block: 0;
        padding-inline: 16px;
        border-inline-end: none;
        border-block-end: 1px solid var(--border);
        backdrop-filter: blur(6px);
    }
    .rail-brand {
        writing-mode: horizontal-tb;
        transform: none;
        flex-direction: row;
        gap: 2px;
        margin-block-end: 0;
        margin-inline-end: 20px;
    }
    .rail-list {
        flex-direction: row;
        gap: 18px;
    }
    .rail-list::before {
        inset-block-start: 50%;
        inset-inline: -10px auto;
        inset-inline-end: -10px;
        transform: translateY(-50%);
        inline-size: auto;
        block-size: 1px;
        background: repeating-linear-gradient(
            to right,
            var(--border) 0 6px,
            transparent 6px 12px
        );
    }
    .rail-tooltip {
        inset-block-start: calc(100% + 10px);
        inset-inline-start: 50%;
        transform: translate(-50%, -4px);
    }
    .rail-tooltip::before {
        inset-block-start: -5px;
        inset-inline-start: 50%;
        inline-size: 1px;
        block-size: 5px;
        transform: translateX(-50%);
    }
    .rail-item:hover .rail-tooltip {
        transform: translate(-50%, 0);
    }
    .rail-foot { margin-block-start: 0; margin-inline-start: auto; flex-direction: row; }
    .rail-foot-line { inline-size: 40px; block-size: 1px; background: linear-gradient(to right, var(--border), transparent); }

    .content-field {
        margin-inline-start: 0;
        padding-inline: clamp(16px, 5vw, 28px);
        padding-block: 24px 64px;
    }

    .panel {
        padding: 24px 22px;
        margin-inline-start: 0 !important;
    }
    .panel-boot {
        padding: 28px 22px 36px;
        min-block-size: 70vh;
    }
    .entry-sub { max-inline-size: 100%; }
    .entry-body { padding-inline-end: 0; }
    .nature-copy { max-inline-size: 100%; }
    .nature-columns { grid-template-columns: 1fr; gap: 8px; }
    .signal-grid { grid-template-columns: 1fr; gap: 24px; }
    .signal-visual { max-inline-size: 220px; }
}

@media (max-width: 480px) {
    .boot-title { font-size: 2.2rem; }
    .entry-title { font-size: 1.7rem; }
    .nature-title { font-size: 1.7rem; }
    .signal-title { font-size: 1.4rem; }
}