:root {
    --btt-bg: #140d1f;
    --btt-surface: #1f1737;
    --btt-surface-alt: #281d46;
    --btt-surface-border: rgba(255, 98, 189, 0.22);
    --btt-primary: #ff62bd;
    --btt-primary-hover: #ff7fc3;
    --btt-accent: #ffd646;
    --btt-text-main: #fcf4ee;
    --btt-text-muted: #aba0bd;
    --btt-card-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px rgba(255, 98, 189, 0.12);
    --btt-radius: 16px;
    --btt-header-bg: rgba(20, 13, 31, 0.94);
    --btt-font-heading: 'Bruno Ace', sans-serif;
    --btt-font-body: 'Outfit', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 88px;
}

body.btt-trunnion-body-root {
    background-color: var(--btt-bg);
    background-image:
        radial-gradient(circle at 15% 12%, rgba(255, 98, 189, 0.14), transparent 36%),
        radial-gradient(circle at 85% 22%, rgba(255, 214, 70, 0.09), transparent 32%),
        linear-gradient(180deg, #140d1f 0%, #10091a 100%);
    color: var(--btt-text-main);
    font-family: var(--btt-font-body);
    line-height: 1.65;
    overflow-x: hidden;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.25s ease;
}

img {
    max-width: 100%;
    display: block;
}

[hidden] {
    display: none !important;
}

/* Header & Navigation */
.btt-trunnion-header-cradle {
    background: var(--btt-header-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--btt-surface-border);
}

.btt-trunnion-nav-bench {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0.95rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

.btt-trunnion-logo {
    font-family: var(--btt-font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--btt-text-main);
    letter-spacing: 0.8px;
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
}

.btt-trunnion-logo span {
    color: var(--btt-primary);
}

.btt-trunnion-logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--btt-primary), var(--btt-accent));
    color: #140d1f !important;
    font-size: 0.85rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 16px rgba(255, 98, 189, 0.45);
}

.btt-trunnion-nav-links {
    display: flex;
    align-items: center;
    gap: 1.65rem;
}

.btt-trunnion-nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--btt-text-muted);
    position: relative;
    padding: 0.25rem 0;
}

.btt-trunnion-nav-link:hover,
.btt-trunnion-nav-link:focus-visible {
    color: var(--btt-primary);
}

.btt-trunnion-nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--btt-primary), var(--btt-accent));
    transition: width 0.25s ease;
}

.btt-trunnion-nav-link:hover::after {
    width: 100%;
}

.btt-trunnion-header-actions {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.btt-trunnion-age-badge {
    background: rgba(255, 214, 70, 0.14);
    border: 1px solid var(--btt-accent);
    color: var(--btt-accent);
    font-family: var(--btt-font-heading);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    letter-spacing: 0.5px;
    user-select: none;
}

.btt-trunnion-age-badge-inline {
    display: inline-flex;
    margin-top: 0.5rem;
}

.btt-trunnion-burger-toggle {
    display: none;
    background: var(--btt-surface);
    border: 1px solid var(--btt-surface-border);
    border-radius: 10px;
    width: 42px;
    height: 42px;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    padding: 0;
}

.btt-trunnion-burger-bar {
    width: 20px;
    height: 2px;
    background-color: var(--btt-text-main);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

/* Main Content Wrapper */
.btt-trunnion-main-content {
    padding-top: 72px;
}

/* Hero Section */
.btt-trunnion-hero-lab {
    position: relative;
    padding: 6.5rem 2rem 5.5rem;
    text-align: center;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(255, 98, 189, 0.22) 0%, rgba(31, 23, 55, 0.4) 55%, transparent 80%);
    border-bottom: 1px solid var(--btt-surface-border);
}

.btt-trunnion-hero-content {
    max-width: 920px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.btt-trunnion-hero-badge {
    display: inline-block;
    background: rgba(255, 98, 189, 0.14);
    border: 1px solid var(--btt-surface-border);
    color: var(--btt-primary);
    font-family: var(--btt-font-heading);
    font-size: 0.76rem;
    letter-spacing: 1.6px;
    padding: 0.45rem 1.1rem;
    border-radius: 999px;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.btt-trunnion-hero-axiom {
    font-family: var(--btt-font-heading);
    font-size: clamp(2rem, 4.4vw, 3.45rem);
    line-height: 1.18;
    margin-bottom: 1.35rem;
    background: linear-gradient(95deg, #ffffff 0%, var(--btt-primary) 58%, var(--btt-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btt-trunnion-hero-subtitle {
    font-size: 1.15rem;
    color: var(--btt-text-muted);
    max-width: 740px;
    margin: 0 auto 2.25rem;
}

.btt-trunnion-hero-cta-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btt-trunnion-impulse-main {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--btt-primary), #e03ca0);
    color: #140d1f;
    font-family: var(--btt-font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    padding: 0.95rem 2.1rem;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    box-shadow: 0 8px 24px rgba(255, 98, 189, 0.35);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btt-trunnion-impulse-main:hover {
    background: linear-gradient(135deg, var(--btt-primary-hover), var(--btt-accent));
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(255, 98, 189, 0.5);
}

.btt-trunnion-impulse-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(31, 23, 55, 0.8);
    color: var(--btt-text-main);
    font-family: var(--btt-font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.95rem 2rem;
    border-radius: 10px;
    border: 1px solid var(--btt-surface-border);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.btt-trunnion-impulse-secondary:hover {
    border-color: var(--btt-primary);
    color: var(--btt-primary);
    transform: translateY(-2px);
}

.btt-trunnion-impulse-full {
    width: 100%;
}

.btt-trunnion-hero-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    background: rgba(31, 23, 55, 0.72);
    border: 1px solid var(--btt-surface-border);
    border-radius: var(--btt-radius);
    padding: 1.35rem 1.5rem;
    box-shadow: var(--btt-card-shadow);
}

.btt-trunnion-metric-pill {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.btt-trunnion-metric-val {
    font-family: var(--btt-font-heading);
    font-size: 1.25rem;
    color: var(--btt-accent);
}

.btt-trunnion-metric-lbl {
    font-size: 0.83rem;
    color: var(--btt-text-muted);
}

/* Shared Section Headers */
.btt-trunnion-lab-intro-wrap {
    max-width: 780px;
    margin: 0 auto 3rem;
    text-align: center;
}

.btt-trunnion-eyebrow-tag {
    display: inline-block;
    color: var(--btt-accent);
    font-family: var(--btt-font-heading);
    font-size: 0.74rem;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    margin-bottom: 0.65rem;
}

.btt-trunnion-lab-header {
    font-family: var(--btt-font-heading);
    font-size: clamp(1.55rem, 3vw, 2.35rem);
    line-height: 1.25;
    color: var(--btt-text-main);
    margin-bottom: 0.85rem;
    text-align: center;
}

.btt-trunnion-align-left {
    text-align: left;
}

.btt-trunnion-lab-subtext {
    color: var(--btt-text-muted);
    font-size: 1.05rem;
}

/* About / Features Section */
.btt-trunnion-about-lab {
    max-width: 1240px;
    margin: 0 auto;
    padding: 5.5rem 2rem 3rem;
}

.btt-trunnion-features-tensor {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
    gap: 1.6rem;
    margin-bottom: 3rem;
}

.btt-trunnion-feature-prism {
    background: var(--btt-surface);
    border: 1px solid var(--btt-surface-border);
    border-radius: var(--btt-radius);
    padding: 2rem 1.75rem;
    box-shadow: var(--btt-card-shadow);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.btt-trunnion-feature-prism:hover {
    transform: translateY(-6px);
    border-color: var(--btt-primary);
}

.btt-trunnion-feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: rgba(255, 98, 189, 0.14);
    border: 1px solid var(--btt-surface-border);
    color: var(--btt-primary);
    font-family: var(--btt-font-heading);
    font-size: 0.88rem;
    margin-bottom: 1.15rem;
}

.btt-trunnion-feature-axiom {
    font-family: var(--btt-font-heading);
    font-size: 1.08rem;
    color: var(--btt-text-main);
    margin-bottom: 0.7rem;
}

.btt-trunnion-feature-theorem {
    color: var(--btt-text-muted);
    font-size: 0.95rem;
}

/* Editorial Legend Card */
.btt-trunnion-legend-prism {
    background: linear-gradient(135deg, rgba(31, 23, 55, 0.95), rgba(40, 29, 70, 0.9));
    border: 1px solid var(--btt-surface-border);
    border-radius: var(--btt-radius);
    padding: 2.5rem;
    box-shadow: var(--btt-card-shadow);
}

.btt-trunnion-legend-badge {
    display: inline-block;
    font-family: var(--btt-font-heading);
    font-size: 0.72rem;
    color: var(--btt-primary);
    letter-spacing: 1.5px;
    margin-bottom: 0.9rem;
}

.btt-trunnion-legend-tensor {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 2.5rem;
    align-items: center;
}

.btt-trunnion-legend-heading {
    font-family: var(--btt-font-heading);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--btt-text-main);
}

.btt-trunnion-legend-text {
    color: var(--btt-text-muted);
    margin-bottom: 0.95rem;
    font-size: 0.98rem;
}

.btt-trunnion-legend-stats {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.btt-trunnion-legend-stat-box {
    background: rgba(20, 13, 31, 0.65);
    border: 1px solid var(--btt-surface-border);
    border-radius: 12px;
    padding: 0.95rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.btt-trunnion-stat-num {
    font-family: var(--btt-font-heading);
    font-size: 0.95rem;
    color: var(--btt-accent);
}

.btt-trunnion-stat-caption {
    font-size: 0.85rem;
    color: var(--btt-text-muted);
}

/* Catalog Section */
.btt-trunnion-catalog-bench {
    max-width: 1240px;
    margin: 0 auto;
    padding: 4.5rem 2rem 5rem;
}

.btt-trunnion-filter-bar {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-bottom: 2.75rem;
}

.btt-trunnion-filter-impulse {
    background: var(--btt-surface);
    border: 1px solid var(--btt-surface-border);
    color: var(--btt-text-muted);
    font-family: var(--btt-font-body);
    font-size: 0.92rem;
    font-weight: 600;
    padding: 0.6rem 1.25rem;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.btt-trunnion-filter-impulse:hover {
    color: var(--btt-text-main);
    border-color: var(--btt-primary);
}

.btt-trunnion-filter-impulse.btt-trunnion-filter-active {
    background: var(--btt-primary);
    color: #140d1f;
    border-color: var(--btt-primary);
    box-shadow: 0 4px 16px rgba(255, 98, 189, 0.35);
}

.btt-trunnion-games-tensor {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.btt-trunnion-game-vector {
    background: var(--btt-surface);
    border-radius: var(--btt-radius);
    overflow: hidden;
    border: 1px solid var(--btt-surface-border);
    display: flex;
    flex-direction: column;
    box-shadow: var(--btt-card-shadow);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.btt-trunnion-game-vector:hover {
    transform: translateY(-8px);
    border-color: var(--btt-primary);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.65), 0 0 22px rgba(255, 98, 189, 0.24);
}

.btt-trunnion-game-top {
    border-color: rgba(255, 214, 70, 0.45);
}

.btt-trunnion-game-img-box {
    position: relative;
    width: 100%;
    height: 215px;
    overflow: hidden;
    background: #0e0817;
}

.btt-trunnion-game-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.btt-trunnion-game-vector:hover .btt-trunnion-game-img {
    transform: scale(1.07);
}

.btt-trunnion-badge-top {
    position: absolute;
    top: 12px;
    left: 12px;
    background: linear-gradient(135deg, var(--btt-accent), #ff9f1c);
    color: #140d1f;
    font-family: var(--btt-font-heading);
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.32rem 0.7rem;
    border-radius: 6px;
    letter-spacing: 0.8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.45);
}

.btt-trunnion-badge-rating {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(20, 13, 31, 0.88);
    border: 1px solid var(--btt-surface-border);
    color: var(--btt-accent);
    font-weight: 700;
    font-size: 0.8rem;
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    backdrop-filter: blur(6px);
}

.btt-trunnion-game-info {
    padding: 1.55rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.btt-trunnion-game-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.55rem;
}

.btt-trunnion-game-genre {
    color: var(--btt-primary);
    font-size: 0.78rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.9px;
}

.btt-trunnion-game-players {
    color: var(--btt-text-muted);
    font-size: 0.78rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.18rem 0.55rem;
    border-radius: 999px;
}

.btt-trunnion-game-axiom {
    font-family: var(--btt-font-heading);
    font-size: 1.22rem;
    color: var(--btt-text-main);
    margin-bottom: 0.65rem;
}

.btt-trunnion-game-theorem {
    color: var(--btt-text-muted);
    font-size: 0.94rem;
    margin-bottom: 1.1rem;
}

.btt-trunnion-game-features {
    list-style: none;
    margin-bottom: 1.45rem;
    padding-top: 0.85rem;
    border-top: 1px solid rgba(255, 98, 189, 0.14);
    flex-grow: 1;
}

.btt-trunnion-game-features li {
    font-size: 0.86rem;
    color: var(--btt-text-main);
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btt-trunnion-game-features li::before {
    content: "▸";
    color: var(--btt-accent);
    font-weight: 700;
}

.btt-trunnion-impulse-play {
    display: block;
    text-align: center;
    padding: 0.82rem 1rem;
    background: rgba(255, 98, 189, 0.1);
    border: 1px solid var(--btt-primary);
    color: var(--btt-primary);
    font-family: var(--btt-font-heading);
    font-size: 0.84rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border-radius: 10px;
}

.btt-trunnion-impulse-play:hover {
    background: var(--btt-primary);
    color: #140d1f;
    box-shadow: 0 6px 18px rgba(255, 98, 189, 0.35);
}

/* Spotlight Section */
.btt-trunnion-spotlight {
    background: var(--btt-surface);
    padding: 5.5rem 2rem;
    margin-top: 1rem;
    border-top: 1px solid var(--btt-surface-border);
    border-bottom: 1px solid var(--btt-surface-border);
}

.btt-trunnion-spotlight-cradle {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
    align-items: center;
}

.btt-trunnion-spotlight-lead {
    color: var(--btt-text-main);
    font-size: 1.08rem;
    margin-bottom: 1.15rem;
}

.btt-trunnion-spotlight-body {
    color: var(--btt-text-muted);
    font-size: 0.98rem;
    margin-bottom: 1.5rem;
}

.btt-trunnion-spotlight-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.btt-trunnion-spec-chip {
    background: rgba(20, 13, 31, 0.7);
    border: 1px solid var(--btt-surface-border);
    border-radius: 8px;
    padding: 0.45rem 0.9rem;
    font-size: 0.85rem;
    color: var(--btt-text-muted);
}

.btt-trunnion-spec-chip strong {
    color: var(--btt-accent);
}

.btt-trunnion-spotlight-image {
    width: 100%;
    border-radius: var(--btt-radius);
    border: 1px solid var(--btt-surface-border);
    box-shadow: 0 20px 44px rgba(0, 0, 0, 0.65);
}

/* Technical Architecture / Intro & Overview Essays Section */
.btt-trunnion-architecture-lab {
    max-width: 1240px;
    margin: 0 auto;
    padding: 5.5rem 2rem 3rem;
}

.btt-trunnion-essays-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.25rem;
}

.btt-trunnion-essay-panel {
    background: var(--btt-surface);
    border: 1px solid var(--btt-surface-border);
    border-radius: var(--btt-radius);
    padding: 2.4rem 2.1rem;
    box-shadow: var(--btt-card-shadow);
}

.btt-trunnion-panel-tag {
    display: inline-block;
    font-family: var(--btt-font-heading);
    font-size: 0.72rem;
    color: var(--btt-primary);
    letter-spacing: 1.4px;
    margin-bottom: 0.6rem;
}

.btt-trunnion-panel-heading {
    font-family: var(--btt-font-heading);
    font-size: 1.32rem;
    color: var(--btt-text-main);
    margin-bottom: 1.65rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--btt-surface-border);
}

.btt-trunnion-topic-block {
    margin-bottom: 1.55rem;
}

.btt-trunnion-topic-block:last-child {
    margin-bottom: 0;
}

.btt-trunnion-topic-axiom {
    font-family: var(--btt-font-heading);
    font-size: 1rem;
    color: var(--btt-accent);
    margin-bottom: 0.5rem;
}

.btt-trunnion-topic-text {
    color: var(--btt-text-muted);
    font-size: 0.95rem;
}

/* FAQ Section */
.btt-trunnion-faq-lab {
    max-width: 880px;
    margin: 0 auto;
    padding: 4.5rem 2rem;
}

.btt-trunnion-faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btt-trunnion-faq-vector {
    background: var(--btt-surface);
    border: 1px solid var(--btt-surface-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--btt-card-shadow);
}

.btt-trunnion-faq-trigger {
    width: 100%;
    background: transparent;
    border: none;
    padding: 1.35rem 1.6rem;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    color: var(--btt-text-main);
}

.btt-trunnion-faq-q {
    font-family: var(--btt-font-heading);
    font-size: 1.02rem;
    color: var(--btt-primary);
}

.btt-trunnion-faq-chevron {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--btt-accent);
    line-height: 1;
}

.btt-trunnion-faq-body {
    padding: 0 1.6rem 1.4rem;
}

.btt-trunnion-faq-a {
    color: var(--btt-text-muted);
    font-size: 0.96rem;
}

/* Contact Section */
.btt-trunnion-contact-lab {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem 6rem;
}

.btt-trunnion-contact-cradle {
    background: var(--btt-surface);
    border: 1px solid var(--btt-surface-border);
    border-radius: var(--btt-radius);
    padding: 3rem;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
    box-shadow: var(--btt-card-shadow);
}

.btt-trunnion-contact-lead {
    color: var(--btt-text-muted);
    margin-bottom: 1.85rem;
}

.btt-trunnion-contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.btt-trunnion-contact-vector {
    background: rgba(20, 13, 31, 0.65);
    border: 1px solid var(--btt-surface-border);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.btt-trunnion-contact-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--btt-accent);
    font-weight: 700;
}

.btt-trunnion-contact-val {
    font-size: 0.98rem;
    color: var(--btt-text-main);
}

.btt-trunnion-contact-val a:hover {
    color: var(--btt-primary);
}

.btt-trunnion-contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.btt-trunnion-form-heading {
    font-family: var(--btt-font-heading);
    font-size: 1.2rem;
    margin-bottom: 0.35rem;
}

.btt-trunnion-form-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.btt-trunnion-form-label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--btt-text-muted);
}

.btt-trunnion-form-input,
.btt-trunnion-form-select,
.btt-trunnion-form-textarea {
    background: rgba(20, 13, 31, 0.85);
    border: 1px solid var(--btt-surface-border);
    border-radius: 10px;
    padding: 0.82rem 1rem;
    color: var(--btt-text-main);
    font-family: var(--btt-font-body);
    font-size: 0.95rem;
}

.btt-trunnion-form-input:focus,
.btt-trunnion-form-select:focus,
.btt-trunnion-form-textarea:focus {
    outline: none;
    border-color: var(--btt-primary);
    box-shadow: 0 0 0 3px rgba(255, 98, 189, 0.2);
}

.btt-trunnion-form-status {
    margin-top: 0.5rem;
    padding: 0.85rem 1rem;
    border-radius: 10px;
    background: rgba(255, 214, 70, 0.14);
    border: 1px solid var(--btt-accent);
    color: var(--btt-accent);
    font-size: 0.92rem;
    font-weight: 600;
}

/* Footer */
.btt-trunnion-footer {
    background: #0b0612;
    padding: 4.5rem 2rem 2.5rem;
    border-top: 1px solid var(--btt-surface-border);
}

.btt-trunnion-footer-tensor {
    max-width: 1200px;
    margin: 0 auto 3rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 2.5rem;
}

.btt-trunnion-footer-axiom {
    font-family: var(--btt-font-heading);
    color: var(--btt-text-main);
    font-size: 1.05rem;
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.btt-trunnion-footer-theorem {
    color: var(--btt-text-muted);
    font-size: 0.92rem;
    margin-bottom: 0.9rem;
}

.btt-trunnion-footer-links {
    list-style: none;
}

.btt-trunnion-footer-links li {
    margin-bottom: 0.7rem;
    color: var(--btt-text-muted);
    font-size: 0.93rem;
}

.btt-trunnion-footer-links a:hover {
    color: var(--btt-primary);
}

.btt-trunnion-footer-pref-impulse {
    background: none;
    border: none;
    padding: 0;
    color: var(--btt-primary);
    font-family: var(--btt-font-body);
    font-size: 0.93rem;
    cursor: pointer;
    text-decoration: underline;
}

.btt-trunnion-footer-pref-impulse:hover {
    color: var(--btt-accent);
}

.btt-trunnion-footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--btt-surface-border);
    text-align: center;
}

.btt-trunnion-f2p-notice {
    max-width: 920px;
    margin: 0 auto 0.9rem;
    color: var(--btt-text-muted);
    font-size: 0.85rem;
}

.btt-trunnion-copyright-line {
    color: var(--btt-text-muted);
    font-size: 0.85rem;
}

/* Legal Pages Container */
.btt-trunnion-legal-bench {
    max-width: 880px;
    margin: 3.5rem auto 5rem;
    padding: 2.75rem;
    background: var(--btt-surface);
    border-radius: var(--btt-radius);
    border: 1px solid var(--btt-surface-border);
    box-shadow: var(--btt-card-shadow);
}

.btt-trunnion-legal-bench h1 {
    font-family: var(--btt-font-heading);
    color: var(--btt-primary);
    font-size: clamp(1.75rem, 3vw, 2.4rem);
    margin-bottom: 0.65rem;
}

.btt-trunnion-legal-updated {
    color: var(--btt-accent);
    font-size: 0.88rem;
    margin-bottom: 2rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--btt-surface-border);
}

.btt-trunnion-legal-bench h2 {
    font-family: var(--btt-font-heading);
    font-size: 1.22rem;
    margin: 2rem 0 0.85rem;
    color: var(--btt-text-main);
}

.btt-trunnion-legal-bench p,
.btt-trunnion-legal-bench li {
    color: var(--btt-text-muted);
    margin-bottom: 0.95rem;
    font-size: 0.97rem;
}

.btt-trunnion-legal-bench ul {
    padding-left: 1.4rem;
    margin-bottom: 1.25rem;
}

.btt-trunnion-legal-bench a {
    color: var(--btt-primary);
    text-decoration: underline;
}

.btt-trunnion-legal-table-wrap {
    overflow-x: auto;
    margin: 1.25rem 0 1.75rem;
}

.btt-trunnion-legal-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.btt-trunnion-legal-table th,
.btt-trunnion-legal-table td {
    border: 1px solid var(--btt-surface-border);
    padding: 0.75rem 0.9rem;
    text-align: left;
}

.btt-trunnion-legal-table th {
    background: rgba(20, 13, 31, 0.8);
    color: var(--btt-accent);
    font-family: var(--btt-font-heading);
    font-size: 0.78rem;
}

/* Cookie Banner & Modal */
.btt-trunnion-cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(20, 13, 31, 0.97);
    border-top: 2px solid var(--btt-primary);
    padding: 1.25rem 2rem;
    z-index: 9990;
    box-shadow: 0 -12px 32px rgba(0, 0, 0, 0.65);
}

.btt-trunnion-cookie-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.btt-trunnion-cookie-text {
    color: var(--btt-text-muted);
    font-size: 0.88rem;
    max-width: 780px;
}

.btt-trunnion-cookie-link {
    color: var(--btt-primary);
    text-decoration: underline;
}

.btt-trunnion-cookie-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.btt-trunnion-impulse-cookie {
    padding: 0.65rem 1.25rem;
    border-radius: 8px;
    font-family: var(--btt-font-body);
    font-weight: 700;
    font-size: 0.86rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btt-trunnion-impulse-cookie-primary {
    background: var(--btt-primary);
    color: #140d1f;
    border: 1px solid var(--btt-primary);
}

.btt-trunnion-impulse-cookie-primary:hover {
    background: var(--btt-primary-hover);
}

.btt-trunnion-impulse-cookie-outline {
    background: transparent;
    color: var(--btt-text-main);
    border: 1px solid var(--btt-surface-border);
}

.btt-trunnion-impulse-cookie-outline:hover {
    border-color: var(--btt-primary);
}

.btt-trunnion-impulse-cookie-ghost {
    background: rgba(255, 214, 70, 0.12);
    color: var(--btt-accent);
    border: 1px solid rgba(255, 214, 70, 0.35);
}

/* Cookie Preferences Modal */
.btt-trunnion-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(10, 6, 18, 0.82);
    backdrop-filter: blur(6px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
}

.btt-trunnion-modal-dialog {
    background: var(--btt-surface);
    border: 1px solid var(--btt-surface-border);
    border-radius: var(--btt-radius);
    max-width: 580px;
    width: 100%;
    padding: 2rem;
    box-shadow: var(--btt-card-shadow);
}

.btt-trunnion-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.15rem;
}

.btt-trunnion-modal-axiom {
    font-family: var(--btt-font-heading);
    font-size: 1.12rem;
    color: var(--btt-primary);
}

.btt-trunnion-modal-close {
    background: none;
    border: none;
    color: var(--btt-text-muted);
    font-size: 1.75rem;
    line-height: 1;
    cursor: pointer;
}

.btt-trunnion-modal-intro {
    color: var(--btt-text-muted);
    font-size: 0.92rem;
    margin-bottom: 1.25rem;
}

.btt-trunnion-pref-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.65rem;
}

.btt-trunnion-pref-row {
    background: rgba(20, 13, 31, 0.65);
    border: 1px solid var(--btt-surface-border);
    border-radius: 10px;
    padding: 0.95rem 1.15rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.btt-trunnion-pref-name {
    font-size: 0.95rem;
    color: var(--btt-text-main);
    margin-bottom: 0.25rem;
}

.btt-trunnion-pref-theorem {
    font-size: 0.83rem;
    color: var(--btt-text-muted);
}

.btt-trunnion-pref-toggle {
    width: 20px;
    height: 20px;
    accent-color: var(--btt-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.btt-trunnion-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.85rem;
    flex-wrap: wrap;
}

/* Scroll To Top */
.btt-trunnion-scroll-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--btt-primary);
    color: #140d1f;
    border: none;
    font-size: 1.25rem;
    font-weight: 800;
    cursor: pointer;
    z-index: 900;
    box-shadow: 0 8px 20px rgba(255, 98, 189, 0.4);
}

/* Responsive Breakpoints (Tablet & Mobile 375px-420px) */
@media (max-width: 1024px) {
    .btt-trunnion-games-tensor {
        grid-template-columns: repeat(2, 1fr);
    }
    .btt-trunnion-legend-tensor,
    .btt-trunnion-spotlight-cradle,
    .btt-trunnion-essays-columns,
    .btt-trunnion-contact-cradle {
        grid-template-columns: 1fr;
    }
    .btt-trunnion-hero-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .btt-trunnion-nav-bench {
        padding: 0.85rem 1.25rem;
    }
    .btt-trunnion-burger-toggle {
        display: inline-flex;
    }
    .btt-trunnion-nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #140d1f;
        border-bottom: 1px solid var(--btt-surface-border);
        flex-direction: column;
        align-items: flex-start;
        padding: 1.25rem 1.5rem;
        gap: 1rem;
        box-shadow: 0 16px 32px rgba(0, 0, 0, 0.65);
    }
    .btt-trunnion-nav-links.btt-trunnion-nav-open {
        display: flex;
    }
    .btt-trunnion-hero-lab {
        padding: 4.5rem 1.25rem 3.5rem;
    }
    .btt-trunnion-games-tensor {
        grid-template-columns: 1fr;
    }
    .btt-trunnion-about-lab,
    .btt-trunnion-catalog-bench,
    .btt-trunnion-spotlight,
    .btt-trunnion-architecture-lab,
    .btt-trunnion-faq-lab,
    .btt-trunnion-contact-lab {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }
    .btt-trunnion-contact-cradle,
    .btt-trunnion-legend-prism,
    .btt-trunnion-essay-panel,
    .btt-trunnion-legal-bench {
        padding: 1.65rem 1.25rem;
    }
    .btt-trunnion-cookie-inner {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: 1rem;
    }
    .btt-trunnion-cookie-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .btt-trunnion-logo {
        font-size: 1.05rem;
    }
    .btt-trunnion-hero-metrics {
        grid-template-columns: 1fr;
    }
    .btt-trunnion-hero-cta-row {
        flex-direction: column;
        width: 100%;
    }
    .btt-trunnion-impulse-main,
    .btt-trunnion-impulse-secondary {
        width: 100%;
    }
}


/* Structural Layout Helpers */
.btt-trunnion-contact-form-box { position: relative; }
.btt-trunnion-contact-info-box { position: relative; }
.btt-trunnion-footer-col { display: flex; flex-direction: column; gap: 0.5rem; }
.btt-trunnion-footer-contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.75rem; }
.btt-trunnion-modal-body { display: block; line-height: 1.6; }
.btt-trunnion-spotlight-copy { position: relative; }
.btt-trunnion-spotlight-visual { position: relative; }