/* Ulvaken — ulvaken-home.css · Layout 79 Dynamic Sidebar Flow */

/* Dynamic Sidebar */
.ulv-dynamic-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--ulv-sidebar-w);
    height: 100vh;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    background: var(--ulv-slate);
    border-right: 1px solid var(--ulv-border);
    overflow: hidden;
}

.ulv-dynamic-sidebar__brand {
    padding: 1.5rem 1.25rem 1rem;
    border-bottom: 1px solid var(--ulv-border);
}
.ulv-dynamic-sidebar__brand a {
    display: flex;
    align-items: baseline;
    gap: 0;
    color: var(--ulv-ivory);
    font-family: var(--ulv-font-display);
    font-size: 1.35rem;
    font-weight: 600;
}
.ulv-dynamic-sidebar__sig {
    color: var(--ulv-amber);
    font-size: 1.5rem;
}
.ulv-dynamic-sidebar__name { letter-spacing: -0.02em; }

.ulv-chapter-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 0;
    scrollbar-width: thin;
    scrollbar-color: var(--ulv-border) transparent;
}
.ulv-chapter-nav ol { list-style: none; margin: 0; padding: 0; }
.ulv-chapter-btn {
    width: 100%;
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.65rem 1.25rem;
    position: relative;
    transition: background 0.3s;
}
.ulv-chapter-btn:hover { background: rgba(212, 168, 83, 0.06); }
.ulv-chapter-btn.is-active { background: var(--ulv-amber-dim); }
.ulv-chapter-btn__num {
    font-size: 10px;
    letter-spacing: 0.1em;
    color: var(--ulv-text-muted);
    min-width: 18px;
    padding-top: 2px;
}
.ulv-chapter-btn.is-active .ulv-chapter-btn__num { color: var(--ulv-amber); }
.ulv-chapter-btn__text { display: flex; flex-direction: column; gap: 1px; }
.ulv-chapter-btn__text em {
    font-style: normal;
    font-size: 9px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ulv-text-muted);
}
.ulv-chapter-btn__text strong {
    font-size: 12px;
    font-weight: 500;
    color: var(--ulv-silver);
    line-height: 1.3;
}
.ulv-chapter-btn.is-active .ulv-chapter-btn__text strong { color: var(--ulv-ivory); }
.ulv-chapter-btn__bar {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--ulv-amber);
    transform: scaleY(0);
    transition: transform 0.35s var(--ulv-ease);
    transform-origin: top;
}
.ulv-chapter-btn.is-active .ulv-chapter-btn__bar { transform: scaleY(1); }

.ulv-sidebar-panel {
    padding: 1rem 1.25rem 1.25rem;
    border-top: 1px solid var(--ulv-border);
    background: var(--ulv-slate-2);
    min-height: 100px;
    transition: opacity 0.4s;
}
.ulv-sidebar-panel h2 {
    font-family: var(--ulv-font-display);
    font-size: 1.1rem;
    color: var(--ulv-ivory);
    margin: 0.25rem 0 0.5rem;
    line-height: 1.2;
}
.ulv-sidebar-panel p { font-size: 11px; color: var(--ulv-text-muted); margin: 0; line-height: 1.5; }

.ulv-dynamic-sidebar__tools {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.25rem;
    border-top: 1px solid var(--ulv-border);
}
.ulv-sidebar-cart {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    margin-left: auto;
    padding: 0.35rem 0.6rem;
    font-size: 11px;
    color: var(--ulv-silver);
    border: 1px solid var(--ulv-border);
    border-radius: var(--ulv-radius);
}
.ulv-sidebar-cart span { color: var(--ulv-amber); font-weight: 600; }

/* Top rail (mobile / secondary) */
.ulv-top-rail {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    left: var(--ulv-sidebar-w);
    z-index: 900;
    padding: 0.85rem 1.5rem;
    justify-content: flex-end;
    align-items: center;
    gap: 1.5rem;
    background: rgba(10, 11, 13, 0.8);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--ulv-border);
}
.ulv-top-rail__link {
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--ulv-text-muted);
}
.ulv-top-rail__link:hover { color: var(--ulv-ivory); }
.ulv-top-rail__link--cta { color: var(--ulv-amber); }
.ulv-top-rail__burger { display: none; flex-direction: column; gap: 4px; padding: 6px; }
.ulv-top-rail__burger span { width: 18px; height: 1.5px; background: var(--ulv-ivory); }

/* Sidebar world zones */
.ulv-sidebar-world { position: relative; }

.ulv-zone {
    min-height: 100vh;
    padding: 4rem 3rem 5rem;
    position: relative;
}
.ulv-zone-head { margin-bottom: 2.5rem; }
.ulv-zone-head h2 {
    font-family: var(--ulv-font-display);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 600;
    color: var(--ulv-ivory);
    margin: 0;
    line-height: 1.15;
}

.ulv-fade-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ulv-ease), transform 0.7s var(--ulv-ease);
}
.ulv-fade-reveal.is-visible { opacity: 1; transform: translateY(0); }

/* §01 Gate */
.ulv-zone--gate {
    display: flex;
    align-items: center;
    min-height: 100vh;
    padding-top: 2rem;
}
.ulv-gate {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    width: 100%;
}
.ulv-gate__title {
    font-family: var(--ulv-font-display);
    font-size: clamp(2.5rem, 5.5vw, 4rem);
    font-weight: 600;
    color: var(--ulv-ivory);
    line-height: 1.1;
    margin: 0 0 1.25rem;
}
.ulv-gate__title span { display: block; }
.ulv-gate__accent { color: var(--ulv-amber); font-style: italic; }
.ulv-gate__lead { font-size: 15px; color: var(--ulv-text-muted); max-width: 420px; margin: 0 0 2rem; }
.ulv-gate__actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.ulv-gate__visual { position: relative; overflow: hidden; }
.ulv-gate__visual img { width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.ulv-gate__cut {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(135deg, transparent 40%, var(--ulv-ink) 40%);
    pointer-events: none;
}

/* §02 Manifesto Ribbon */
.ulv-zone--manifesto { min-height: auto; padding-bottom: 4rem; }
.ulv-ribbon-scroll {
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    padding-bottom: 1rem;
    cursor: grab;
}
.ulv-ribbon-scroll.is-dragging { cursor: grabbing; }
.ulv-ribbon-scroll__track {
    display: flex;
    gap: 1.5rem;
    width: max-content;
    padding: 0.5rem 0;
}
.ulv-ribbon-card {
    flex: 0 0 min(340px, 80vw);
    padding: 2rem;
    background: var(--ulv-slate);
    border: 1px solid var(--ulv-border);
    position: relative;
    transition: border-color 0.3s, transform 0.3s;
}
.ulv-ribbon-card:hover { border-color: rgba(212, 168, 83, 0.4); transform: translateY(-4px); }
.ulv-ribbon-card__year {
    font-size: 2.5rem;
    font-family: var(--ulv-font-display);
    color: var(--ulv-amber);
    opacity: 0.35;
    line-height: 1;
    display: block;
    margin-bottom: 0.75rem;
}
.ulv-ribbon-card h3 {
    font-family: var(--ulv-font-display);
    font-size: 1.35rem;
    color: var(--ulv-ivory);
    margin: 0 0 0.75rem;
}
.ulv-ribbon-card p { font-size: 13px; color: var(--ulv-text); margin: 0; line-height: 1.65; }
.ulv-ribbon-hint { text-align: center; margin-top: 1rem; }

/* §03 Spec Dial */
.ulv-zone--dial { min-height: auto; }
.ulv-dial-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}
.ulv-dial-wrap { display: flex; justify-content: center; }
.ulv-dial {
    position: relative;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    border: 1px solid var(--ulv-border);
    background: radial-gradient(circle at center, var(--ulv-slate-2) 0%, var(--ulv-slate) 70%);
}
.ulv-dial__node {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 72px;
    height: 72px;
    margin: -36px 0 0 -36px;
    transform: rotate(var(--angle)) translateY(-130px) rotate(calc(-1 * var(--angle)));
    border-radius: 50%;
    border: 1px solid var(--ulv-border);
    background: var(--ulv-slate);
    font-size: 10px;
    color: var(--ulv-text-muted);
    letter-spacing: 0.04em;
    transition: all 0.35s var(--ulv-ease);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0.25rem;
}
.ulv-dial__node:hover, .ulv-dial__node.is-active {
    border-color: var(--ulv-amber);
    background: var(--ulv-amber-dim);
    color: var(--ulv-ivory);
    transform: rotate(var(--angle)) translateY(-130px) rotate(calc(-1 * var(--angle))) scale(1.08);
}
.ulv-dial__core {
    position: absolute;
    inset: 25%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-radius: 50%;
    background: var(--ulv-ink);
    border: 1px solid var(--ulv-border);
    padding: 1rem;
}
.ulv-dial__core strong {
    font-family: var(--ulv-font-display);
    font-size: 1.1rem;
    color: var(--ulv-ivory);
    display: block;
    margin: 0.25rem 0;
}
.ulv-dial__core em { font-style: normal; font-size: 11px; color: var(--ulv-text-muted); }
.ulv-dial-info h2 { font-family: var(--ulv-font-display); font-size: 2rem; color: var(--ulv-ivory); margin: 0 0 1rem; }
.ulv-dial-info p { font-size: 14px; color: var(--ulv-text); margin: 0 0 1.5rem; }
.ulv-dial-specs { list-style: none; padding: 0; margin: 0; }
.ulv-dial-specs li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--ulv-border);
    font-size: 13px;
    color: var(--ulv-text-muted);
    transition: color 0.25s;
}
.ulv-dial-specs li.is-highlight { color: var(--ulv-amber); }
.ulv-dial-specs li strong { color: var(--ulv-silver); margin-right: 0.5rem; }

/* §04 Fleet */
.ulv-zone--fleet { min-height: auto; }
.ulv-fleet-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.ulv-fleet-card {
    transform: rotate(var(--skew, 0deg));
    transition: transform 0.5s var(--ulv-ease);
}
.ulv-fleet-card:hover { transform: rotate(0deg) translateY(-6px); }
.ulv-fleet-card figure {
    overflow: hidden;
    border: 1px solid var(--ulv-border);
    clip-path: polygon(0 8%, 100% 0, 100% 92%, 0 100%);
}
.ulv-fleet-card img { width: 100%; aspect-ratio: 3/2; object-fit: cover; transition: transform 0.6s; }
.ulv-fleet-card:hover img { transform: scale(1.05); }
.ulv-fleet-card__body { padding: 1rem 0.25rem; }
.ulv-fleet-card__body h3 {
    font-family: var(--ulv-font-display);
    font-size: 1.15rem;
    color: var(--ulv-ivory);
    margin: 0.25rem 0;
}
.ulv-fleet-card__price { font-size: 14px; color: var(--ulv-amber); margin: 0 0 0.75rem; }

/* §05 Pinned Journey */
.ulv-zone--journey { min-height: auto; padding: 0 3rem; }
.ulv-journey-pin { position: relative; }
.ulv-journey-pin__sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem 0;
}
.ulv-journey-step {
    position: absolute;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.5s, transform 0.5s var(--ulv-ease);
    pointer-events: none;
}
.ulv-journey-step.is-active {
    position: relative;
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}
.ulv-journey-step__num {
    font-size: 3rem;
    font-family: var(--ulv-font-display);
    color: var(--ulv-amber);
    opacity: 0.25;
    line-height: 1;
    display: block;
}
.ulv-journey-step h3 {
    font-family: var(--ulv-font-display);
    font-size: 1.75rem;
    color: var(--ulv-ivory);
    margin: 0.25rem 0 0.75rem;
}
.ulv-journey-step p { font-size: 14px; color: var(--ulv-text); margin: 0; max-width: 400px; }
.ulv-journey-visual {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
    border: 1px solid var(--ulv-border);
}
.ulv-journey-visual img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.6s;
}
.ulv-journey-visual img.is-visible { opacity: 1; }
.ulv-journey-spacer div { height: 80vh; }

/* §06 Prism */
.ulv-zone--prism { min-height: 100vh; display: flex; align-items: center; padding: 4rem 3rem; }
.ulv-prism {
    position: relative;
    width: 100%;
    height: 70vh;
    min-height: 480px;
    overflow: hidden;
}
.ulv-prism__layer { position: absolute; transition: transform 0.1s linear; }
.ulv-prism__layer--back { inset: 0; }
.ulv-prism__layer--back img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.5); }
.ulv-prism__layer--mid {
    top: 15%;
    right: 10%;
    width: 45%;
    clip-path: polygon(15% 0, 100% 0, 85% 100%, 0 100%);
    border: 1px solid var(--ulv-border);
}
.ulv-prism__layer--mid img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.ulv-prism__layer--front {
    bottom: 10%;
    left: 5%;
    max-width: 420px;
    z-index: 2;
}
.ulv-prism__copy {
    padding: 2rem;
    background: rgba(10, 11, 13, 0.88);
    border: 1px solid var(--ulv-border);
    backdrop-filter: blur(8px);
}
.ulv-prism__copy h2 {
    font-family: var(--ulv-font-display);
    font-size: 2rem;
    color: var(--ulv-ivory);
    margin: 0 0 0.75rem;
}
.ulv-prism__copy p { font-size: 14px; color: var(--ulv-text); margin: 0; line-height: 1.7; }
.ulv-prism__mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, transparent 30%, rgba(10, 11, 13, 0.4) 70%);
    pointer-events: none;
    clip-path: polygon(0 0, 100% 20%, 100% 100%, 0 80%);
}

/* §07 Voices */
.ulv-zone--voices { min-height: auto; }
.ulv-voice-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 640px;
    margin-left: auto;
}
.ulv-voice-card {
    margin: 0;
    padding: 1.75rem 2rem;
    background: var(--ulv-slate);
    border-left: 3px solid var(--ulv-border);
    transition: border-color 0.3s, transform 0.3s;
}
.ulv-voice-card:hover { border-left-color: var(--ulv-amber); transform: translateX(8px); }
.ulv-voice-card p {
    font-family: var(--ulv-font-serif);
    font-size: 15px;
    font-style: italic;
    color: var(--ulv-silver);
    margin: 0 0 1rem;
    line-height: 1.7;
}
.ulv-voice-card footer { font-size: 12px; }
.ulv-voice-card cite { font-style: normal; color: var(--ulv-amber); font-weight: 500; }
.ulv-voice-card footer span { color: var(--ulv-text-muted); margin-left: 0.5rem; }

/* §08 Metrics */
.ulv-zone--metrics { min-height: 70vh; position: relative; }
.ulv-metrics-float {
    position: relative;
    height: 400px;
    max-width: 800px;
    margin: 0 auto;
}
.ulv-metric-bubble {
    position: absolute;
    padding: 1.25rem 1.75rem;
    background: var(--ulv-slate);
    border: 1px solid var(--ulv-border);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    transition: transform 0.4s var(--ulv-ease), border-color 0.3s;
}
.ulv-metric-bubble:hover { transform: translateY(-6px) scale(1.03); border-color: var(--ulv-amber); }
.ulv-metric-bubble:nth-child(1) { top: 5%; left: 10%; }
.ulv-metric-bubble:nth-child(2) { top: 0; right: 15%; }
.ulv-metric-bubble:nth-child(3) { top: 35%; left: 35%; }
.ulv-metric-bubble:nth-child(4) { bottom: 20%; left: 5%; }
.ulv-metric-bubble:nth-child(5) { bottom: 10%; right: 25%; }
.ulv-metric-bubble:nth-child(6) { top: 55%; right: 5%; }
.ulv-metric-bubble strong {
    display: block;
    font-family: var(--ulv-font-display);
    font-size: 2rem;
    color: var(--ulv-amber);
    line-height: 1;
}
.ulv-metric-bubble span { font-size: 11px; color: var(--ulv-text-muted); letter-spacing: 0.06em; }

/* §09 Routes */
.ulv-zone--routes { min-height: auto; }
.ulv-routes-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    align-items: start;
}
.ulv-routes-tabs { display: flex; flex-direction: column; gap: 0.35rem; }
.ulv-route-tab {
    text-align: left;
    padding: 0.85rem 1rem;
    border: 1px solid var(--ulv-border);
    background: var(--ulv-slate);
    transition: all 0.3s;
}
.ulv-route-tab span { display: block; font-size: 14px; color: var(--ulv-silver); font-weight: 500; }
.ulv-route-tab em { font-style: normal; font-size: 10px; color: var(--ulv-text-muted); letter-spacing: 0.08em; }
.ulv-route-tab.is-active, .ulv-route-tab:hover {
    border-color: var(--ulv-amber);
    background: var(--ulv-amber-dim);
}
.ulv-route-tab.is-active span { color: var(--ulv-ivory); }
.ulv-route-panel { display: none; }
.ulv-route-panel.is-active { display: grid; grid-template-columns: 1.2fr 1fr; gap: 2rem; align-items: center; animation: ulvPanelIn 0.45s var(--ulv-ease); }
@keyframes ulvPanelIn {
    from { opacity: 0; transform: translateX(12px); }
    to { opacity: 1; transform: translateX(0); }
}
.ulv-route-panel figure { overflow: hidden; border: 1px solid var(--ulv-border); }
.ulv-route-panel img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.ulv-route-panel h3 {
    font-family: var(--ulv-font-display);
    font-size: 1.75rem;
    color: var(--ulv-ivory);
    margin: 0 0 0.75rem;
}
.ulv-route-panel p { font-size: 14px; color: var(--ulv-text); margin: 0 0 1.25rem; }

/* §10 Atelier CTA */
.ulv-zone--atelier {
    min-height: auto;
    padding-bottom: 6rem;
}
.ulv-atelier {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    padding: 3rem;
    background: var(--ulv-slate);
    border: 1px solid var(--ulv-border);
    position: relative;
    overflow: hidden;
}
.ulv-atelier::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(135deg, transparent, var(--ulv-amber-dim));
    pointer-events: none;
}
.ulv-atelier__copy h2 {
    font-family: var(--ulv-font-display);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    color: var(--ulv-ivory);
    margin: 0 0 1rem;
    line-height: 1.2;
}
.ulv-atelier__copy p { font-size: 14px; color: var(--ulv-text); margin: 0 0 1.25rem; max-width: 480px; }
.ulv-atelier__perks { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.ulv-atelier__perks li {
    font-size: 13px;
    color: var(--ulv-silver);
    padding: 0.4rem 0 0.4rem 1.25rem;
    position: relative;
}
.ulv-atelier__perks li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    background: var(--ulv-amber);
    transform: translateY(-50%) rotate(45deg);
}
.ulv-atelier__actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.ulv-atelier__form {
    position: relative;
    z-index: 1;
    padding: 1.75rem;
    background: var(--ulv-ink);
    border: 1px solid var(--ulv-border);
}
.ulv-atelier__form label { display: block; font-size: 11px; margin-bottom: 0.35rem; color: var(--ulv-text-muted); }
.ulv-atelier__form input, .ulv-atelier__form select {
    width: 100%;
    padding: 0.65rem 0.85rem;
    margin-bottom: 0.85rem;
    background: var(--ulv-slate);
    border: 1px solid var(--ulv-border);
    color: var(--ulv-ivory);
    font-size: 13px;
    font-family: inherit;
}

/* Mobile sidebar collapse */
@media (max-width: 1024px) {
    :root { --ulv-sidebar-w: 0px; }
    .ulv-dynamic-sidebar {
        transform: translateX(-100%);
        width: 280px;
        transition: transform 0.4s var(--ulv-ease);
    }
    .ulv-dynamic-sidebar.is-open { transform: translateX(0); }
    .ulv-top-rail { display: flex; left: 0; }
    .ulv-top-rail__burger { display: flex; }
    .ulv-zone { padding: 3rem 1.5rem 4rem; }
    .ulv-gate { grid-template-columns: 1fr; }
    .ulv-dial-layout { grid-template-columns: 1fr; }
    .ulv-fleet-grid { grid-template-columns: 1fr 1fr; }
    .ulv-journey-pin__sticky { grid-template-columns: 1fr; height: auto; position: relative; }
    .ulv-journey-spacer { display: none; }
    .ulv-routes-layout { grid-template-columns: 1fr; }
    .ulv-routes-tabs { flex-direction: row; flex-wrap: wrap; }
    .ulv-route-panel.is-active { grid-template-columns: 1fr; }
    .ulv-atelier { grid-template-columns: 1fr; padding: 2rem; }
    .ulv-metrics-float { height: auto; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
    .ulv-metric-bubble { position: static; }
}

@media (max-width: 600px) {
    .ulv-fleet-grid { grid-template-columns: 1fr; }
    .ulv-fleet-card { transform: none !important; }
    .ulv-metrics-float { grid-template-columns: 1fr; }
}