:root {
    --font-sans: 'Synonym', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Chillax', 'Synonym', sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
    --page: #f7f2e8;
    --surface: rgba(255, 255, 255, 0.88);
    --surface-strong: #ffffff;
    --surface-muted: #f0e9dc;
    --ink: #101416;
    --muted: #4f5f62;
    --line: rgba(16, 20, 22, 0.12);
    --line-strong: rgba(16, 20, 22, 0.18);
    --accent: #ff6a32;
    --accent-strong: #eb4c1b;
    --accent-soft: rgba(255, 106, 50, 0.18);
    --accent-2: #1bb6ab;
    --accent-2-soft: rgba(27, 182, 171, 0.18);
    --shadow: 0 16px 44px rgba(9, 17, 19, 0.08);
    --shadow-tight: 0 10px 26px rgba(9, 17, 19, 0.06);
    --max-width: 1280px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    position: relative;
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    font-family: var(--font-sans);
    color: var(--ink);
    line-height: 1.65;
    background: var(--page);
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    opacity: 0.5;
    background-image:
        linear-gradient(rgba(16, 20, 22, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16, 20, 22, 0.045) 1px, transparent 1px);
    background-size: 56px 56px;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input {
    font: inherit;
}

.site-header,
main {
    width: min(var(--max-width), calc(100% - 40px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    padding: 22px 0;
    border-bottom: 1px solid rgba(16, 20, 22, 0.08);
    background: rgba(247, 242, 232, 0.96);
    box-shadow:
        0 0 0 100vmax rgba(247, 242, 232, 0.96),
        0 12px 28px rgba(9, 17, 19, 0.04);
    clip-path: inset(0 -100vmax);
    backdrop-filter: blur(18px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 1.22rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: lowercase;
    white-space: nowrap;
}

.brand img {
    width: 32px;
    height: auto;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 22px;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1;
    text-transform: uppercase;
}

.site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    white-space: nowrap;
}

.site-nav a:hover {
    color: var(--ink);
}

section {
    scroll-margin-top: 104px;
    padding: 78px 0;
    border-bottom: 1px solid var(--line);
}

.hero {
    min-height: 520px;
    margin-top: 28px;
    padding: clamp(28px, 4vw, 40px);
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(340px, 0.88fr);
    gap: 56px;
    align-items: center;
    overflow: hidden;
    border: 1px solid rgba(10, 22, 25, 0.12);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--shadow);
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: '';
    display: inline-block;
    width: 34px;
    height: 1px;
    margin-right: 10px;
    vertical-align: middle;
    background: linear-gradient(90deg, var(--accent), transparent);
}

h1,
h2,
h3 {
    margin: 0;
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: 0;
}

h1 {
    max-width: 720px;
    font-size: clamp(2.85rem, 5.2vw, 4.85rem);
    line-height: 1.02;
    letter-spacing: -0.04em;
}

h2 {
    font-size: clamp(2rem, 3.6vw, 3.35rem);
    line-height: 1.08;
    letter-spacing: -0.03em;
}

h3 {
    font-size: 1.4rem;
    line-height: 1.15;
}

.hero-text,
.section-heading p,
.contact-copy p,
.thesis-copy p,
.catalog-row,
.lane-item p,
.process-list p,
.governance-list li {
    color: var(--muted);
    line-height: 1.62;
}

.hero-text {
    max-width: 660px;
    margin: 24px 0 0;
    font-size: 1.12rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    font-weight: 700;
    transition:
        transform 180ms ease,
        box-shadow 180ms ease,
        background 180ms ease,
        color 180ms ease,
        border-color 180ms ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-primary {
    color: #f9f6f0;
    border-color: transparent;
    background: linear-gradient(135deg, #101416 0%, #173034 100%);
    box-shadow: 0 12px 32px rgba(9, 17, 19, 0.16);
}

.button-secondary {
    background: rgba(255, 255, 255, 0.58);
}

.button-secondary:hover {
    background: var(--surface-strong);
}

.broker-summary {
    display: grid;
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-tight);
}

.broker-summary div {
    display: grid;
    grid-template-columns: minmax(120px, 0.42fr) minmax(0, 1fr);
    gap: 18px;
    padding: 20px;
    border-bottom: 1px solid var(--line);
}

.broker-summary div:last-child {
    border-bottom: 0;
}

.broker-summary span,
.catalog-head,
.catalog-row small,
.lane-item span,
.process-list span {
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.broker-summary strong {
    font-size: 1.05rem;
    line-height: 1.35;
}

.thesis-section,
.process-section,
.governance-section {
    display: grid;
    grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
    gap: 44px;
    align-items: start;
}

.thesis-copy {
    display: grid;
    gap: 18px;
}

.thesis-copy p {
    margin: 0;
    font-size: 1.12rem;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 30px;
}

.section-heading.compact {
    margin-bottom: 0;
}

.section-heading p {
    margin: 16px 0 0;
    font-size: 1.05rem;
}

.package-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.package-card {
    min-height: 300px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    box-shadow: var(--shadow-tight);
}

.package-card-featured {
    border-color: var(--line-strong);
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.86), rgba(255, 240, 232, 0.9));
}

.package-card span,
.lane-matrix-head,
.lane-matrix-row span {
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.package-card h3 {
    margin-top: 26px;
    font-size: 2rem;
}

.package-card p {
    margin: 12px 0 0;
    color: var(--muted);
    line-height: 1.55;
}

.package-card ul {
    display: grid;
    gap: 8px;
    margin: 22px 0 0;
    padding: 0;
    list-style: none;
}

.package-card li {
    padding: 8px 0;
    border-top: 1px solid var(--line);
    font-weight: 700;
}

.lane-matrix {
    margin-top: 16px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    overflow: hidden;
    box-shadow: var(--shadow-tight);
}

.lane-matrix-row {
    display: grid;
    grid-template-columns: minmax(180px, 1.2fr) repeat(3, minmax(110px, 0.6fr));
    gap: 14px;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
}

.lane-matrix-row:last-child {
    border-bottom: 0;
}

.lane-matrix-head {
    background: rgba(255, 255, 255, 0.48);
}

.lane-matrix-row strong {
    line-height: 1.3;
}

.lanes-section {
    display: grid;
    grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
    gap: 54px;
    align-items: start;
}

.lane-list {
    display: grid;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    overflow: hidden;
}

.lane-item {
    display: grid;
    grid-template-columns: 54px minmax(180px, 0.44fr) minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    padding: 18px 20px;
    border-bottom: 1px solid var(--line);
}

.lane-item:last-child {
    border-bottom: 0;
}

.lane-item strong {
    line-height: 1.25;
}

.lane-item p {
    margin: 0;
}

.session-viewer {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(340px, 0.78fr);
    gap: 16px;
}

.voice-viewer {
    grid-template-columns: minmax(0, 1.16fr) minmax(320px, 0.84fr);
}

.viewer-stage {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--ink);
    aspect-ratio: 16 / 9;
    box-shadow: var(--shadow);
}

.viewer-stage video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.stage-badge {
    position: absolute;
    left: 14px;
    top: 14px;
    padding: 6px 9px;
    border-radius: 6px;
    color: #fff;
    background: rgba(16, 20, 22, 0.74);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.viewer-panel,
.transcript-panel {
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    overflow: hidden;
    box-shadow: var(--shadow-tight);
}

.viewer-panel {
    padding: 16px;
}

.voice-monitor {
    min-height: 100%;
}

.voice-spec-panel {
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    overflow: hidden;
    box-shadow: var(--shadow-tight);
}

.voice-spec-list {
    display: grid;
}

.voice-spec-list div {
    display: grid;
    grid-template-columns: minmax(140px, 0.46fr) minmax(0, 1fr);
    gap: 14px;
    padding: 16px;
    border-bottom: 1px solid var(--line);
}

.voice-spec-list div:last-child {
    border-bottom: 0;
}

.voice-spec-list span {
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.voice-spec-list strong {
    line-height: 1.35;
}

.panel-topline,
.timeline-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.transport {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    margin-top: 18px;
}

.play-button {
    min-width: 72px;
    height: 40px;
    border: 0;
    border-radius: 999px;
    color: #f9f6f0;
    background: linear-gradient(135deg, #101416 0%, #173034 100%);
    cursor: pointer;
}

#seekBar {
    width: 100%;
    accent-color: var(--accent);
}

.mode-tabs {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
    margin-top: 16px;
}

.mode-tab {
    --speaker-color: var(--accent);
    min-height: 34px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    background: var(--surface-strong);
    cursor: pointer;
    transition: color 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.mode-tab[data-mode="p2"] {
    --speaker-color: var(--accent-2);
}

.mode-tab[data-mode="p3"] {
    --speaker-color: #657177;
}

.mode-tab[data-mode="p4"] {
    --speaker-color: #b57c2f;
}

.mode-tab.is-speaking {
    color: var(--ink);
    border-color: var(--speaker-color);
    background: var(--surface);
    box-shadow: inset 0 -3px 0 var(--speaker-color);
}

.mode-tab.active {
    color: #f9f6f0;
    border-color: var(--ink);
    background: linear-gradient(135deg, #101416 0%, #173034 100%);
}

.mode-tab.active.is-speaking {
    border-color: var(--speaker-color);
    box-shadow: inset 0 -3px 0 var(--speaker-color);
}

.channel-stack {
    display: grid;
    gap: 8px;
    margin-top: 16px;
}

.channel-card {
    --speaker-color: var(--accent);
    display: grid;
    grid-template-columns: minmax(100px, 0.42fr) minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    min-height: 58px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.72);
    opacity: 0.58;
    transition: opacity 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.channel-p2 {
    --speaker-color: var(--accent-2);
}

.channel-p3 {
    --speaker-color: #657177;
}

.channel-p4 {
    --speaker-color: #b57c2f;
}

.channel-card.is-audible,
.channel-card.is-active,
.channel-card.is-speaking {
    opacity: 1;
    border-color: var(--line-strong);
}

.channel-card.is-speaking {
    border-color: var(--speaker-color);
    background: var(--surface-strong);
    box-shadow: inset 4px 0 0 var(--speaker-color);
}

.channel-card strong,
.channel-card span {
    display: block;
}

.channel-card span {
    margin-top: 2px;
    color: var(--muted);
    font-size: 0.82rem;
}

.waveform {
    position: relative;
    overflow: hidden;
    height: 24px;
    border-radius: 999px;
    background:
        repeating-linear-gradient(90deg, rgba(16, 20, 22, 0.18) 0 3px, transparent 3px 10px);
}

.waveform i {
    position: absolute;
    inset: 0 auto 0 0;
    width: 0;
    background: var(--speaker-color);
}

.transcript-panel {
    grid-column: 1 / -1;
    padding: 18px;
}

.timeline-track {
    position: relative;
    height: 8px;
    margin: 16px 0;
    border-radius: 999px;
    background: var(--surface-muted);
    overflow: hidden;
}

.timeline-progress {
    position: absolute;
    inset: 0 auto 0 0;
    width: 0;
    background: var(--accent);
}

.timeline-head a {
    color: var(--ink);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.transcript-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.transcript-list button {
    min-height: 64px;
    padding: 11px;
    border: 1px solid var(--line);
    border-radius: 14px;
    color: var(--ink);
    text-align: left;
    line-height: 1.35;
    background: rgba(255, 255, 255, 0.78);
    cursor: pointer;
}

.transcript-list button.is-active {
    border-color: var(--ink);
    background: linear-gradient(135deg, #101416 0%, #173034 100%);
    color: #f9f6f0;
}

.transcript-list span {
    display: inline-flex;
    margin-right: 7px;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.76rem;
    letter-spacing: 0.08em;
}

.process-list {
    display: grid;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    overflow: hidden;
}

.process-list li {
    display: grid;
    grid-template-columns: 52px minmax(160px, 0.42fr) minmax(0, 1fr);
    gap: 18px;
    padding: 20px;
    border-bottom: 1px solid var(--line);
}

.process-list li:last-child {
    border-bottom: 0;
}

.process-list p {
    margin: 0;
}

.governance-list {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.governance-list li {
    padding: 16px 18px;
    border-left: 3px solid var(--accent);
    border-radius: 10px;
    background: var(--surface);
}

.contact-section {
    display: grid;
    grid-template-columns: minmax(260px, 1fr) auto;
    gap: 54px;
    align-items: end;
    border-bottom: 0;
}

.contact-copy {
    max-width: 760px;
}

.contact-copy p:last-child {
    margin: 18px 0 0;
    font-size: 1.12rem;
}

.contact-actions {
    display: grid;
    justify-items: end;
    gap: 12px;
}

.contact-email {
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
}

.contact-email:hover {
    color: var(--ink);
}

.quality-section {
    display: grid;
    grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
    gap: 44px;
    align-items: start;
}

.quality-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.quality-grid article {
    min-height: 190px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    box-shadow: var(--shadow-tight);
}

.quality-grid span {
    display: block;
    margin-bottom: 26px;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.quality-grid strong {
    display: block;
    font-size: 1.04rem;
    line-height: 1.3;
}

.quality-grid p {
    margin: 12px 0 0;
    color: var(--muted);
    line-height: 1.58;
}

.sample-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.48);
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

@media (max-width: 980px) {
    .hero,
    .thesis-section,
    .lanes-section,
    .session-viewer,
    .quality-section,
    .process-section,
    .governance-section,
    .contact-section {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
        padding-top: 36px;
    }

    .package-cards {
        grid-template-columns: 1fr;
    }

    .package-card {
        min-height: auto;
    }

    .transcript-list {
        grid-template-columns: 1fr;
    }

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

    .contact-actions {
        justify-items: start;
    }
}

@media (max-width: 720px) {
    .site-header,
    main {
        width: min(100% - 28px, 1180px);
    }

    .site-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
        padding: 16px 0 14px;
    }

    .brand {
        font-size: 1.18rem;
    }

    .brand img {
        width: 30px;
    }

    .site-nav {
        width: 100%;
        gap: 14px;
        overflow-x: auto;
        padding-bottom: 2px;
        font-size: 0.76rem;
    }

    section {
        scroll-margin-top: 128px;
        padding: 48px 0;
    }

    h1 {
        font-size: clamp(2.45rem, 12vw, 3.45rem);
        line-height: 1.04;
    }

    h2 {
        font-size: clamp(2rem, 9vw, 3rem);
    }

    .hero {
        margin-top: 20px;
        padding: 30px;
        border-radius: 20px;
    }

    .hero-text {
        font-size: 1.04rem;
    }

    .broker-summary div,
    .lane-item,
    .process-list li,
    .voice-spec-list div {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .mode-tabs {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .voice-monitor {
        order: 1;
    }

    .transcript-panel {
        order: 2;
    }

    .voice-spec-panel {
        order: 3;
    }

    .channel-card {
        grid-template-columns: 1fr;
    }

    .lane-matrix {
        overflow-x: auto;
    }

    .lane-matrix-row {
        grid-template-columns: 140px repeat(3, 96px);
        min-width: 448px;
        gap: 10px;
        padding: 12px;
    }

    .lane-matrix-row span,
    .lane-matrix-row strong {
        font-size: 0.72rem;
    }
}