:root {
    --logo-yellow: #f7c93e;
    --logo-orange: #f2923e;
    --logo-red: #e25b43;
    --logo-blue: #29455b;
    --bg: #f7f0df;
    --bg-accent: rgba(255, 255, 255, 0.52);
    --surface: rgba(255, 251, 245, 0.84);
    --surface-strong: #fffaf0;
    --line: rgba(41, 69, 91, 0.14);
    --text: #22384b;
    --muted: #55697a;
    --accent: var(--logo-orange);
    --accent-soft: rgba(242, 146, 62, 0.14);
    --accent-strong: var(--logo-blue);
    --shadow: 0 24px 80px rgba(41, 69, 91, 0.14);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --content-width: min(1180px, calc(100vw - 32px));
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "IBM Plex Sans", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(247, 201, 62, 0.28), transparent 28%),
        radial-gradient(circle at 85% 12%, rgba(41, 69, 91, 0.18), transparent 25%),
        linear-gradient(180deg, #fbf4e4 0%, #f7f0df 45%, #f3ead7 100%);
}

body::before,
body::after {
    content: "";
    position: fixed;
    inset: auto;
    pointer-events: none;
    z-index: 0;
    filter: blur(18px);
}

body::before {
    top: 90px;
    right: -70px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(242, 146, 62, 0.16);
}

body::after {
    bottom: 60px;
    left: -80px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(226, 91, 67, 0.12);
}

body[data-theme="control-tower"] {
    --bg: #eef3f5;
    --surface: rgba(248, 251, 252, 0.86);
    --surface-strong: #fbfdfe;
    --line: rgba(41, 69, 91, 0.14);
    --text: #22384b;
    --muted: #587186;
    --accent: var(--logo-blue);
    --accent-soft: rgba(41, 69, 91, 0.14);
    --accent-strong: var(--logo-red);
    --shadow: 0 24px 80px rgba(41, 69, 91, 0.12);
    background:
        radial-gradient(circle at top left, rgba(41, 69, 91, 0.18), transparent 26%),
        radial-gradient(circle at 88% 15%, rgba(247, 201, 62, 0.16), transparent 24%),
        linear-gradient(180deg, #f4f8fa 0%, #eef3f5 45%, #e6edf1 100%);
}

body[data-theme="quiet-precision"] {
    --bg: #f7f1eb;
    --surface: rgba(255, 255, 255, 0.84);
    --surface-strong: #fffdf9;
    --line: rgba(226, 91, 67, 0.14);
    --text: #29455b;
    --muted: #6f6a70;
    --accent: var(--logo-red);
    --accent-soft: rgba(226, 91, 67, 0.12);
    --accent-strong: var(--logo-orange);
    --shadow: 0 24px 80px rgba(112, 71, 54, 0.12);
    background:
        radial-gradient(circle at top left, rgba(242, 146, 62, 0.16), transparent 26%),
        radial-gradient(circle at 82% 12%, rgba(226, 91, 67, 0.14), transparent 24%),
        linear-gradient(180deg, #fbf6f1 0%, #f7f1eb 45%, #f1e8df 100%);
}

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

button,
.button {
    font: inherit;
}

.page-shell {
    position: relative;
    z-index: 1;
    width: var(--content-width);
    margin: 0 auto;
    padding: 24px 0 40px;
}

.site-header,
.site-footer,
.value-strip,
.proposal-card,
.pain-grid article,
.platform-grid article,
.route-grid a,
.hero-panel {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.site-header,
.site-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    border-radius: var(--radius-xl);
    padding: 18px 22px;
}

.site-header {
    position: sticky;
    top: 16px;
    z-index: 8;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 56px;
    height: 56px;
    flex: 0 0 56px;
    border-radius: 16px;
    background: var(--surface-strong);
    border: 1px solid var(--line);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
    padding: 8px;
}

.brand-mark img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.brand-text {
    display: grid;
    gap: 2px;
}

.brand-text strong,
h1,
h2,
h3,
h4 {
    font-family: "Sora", sans-serif;
}

.brand-text span,
.header-links a,
.hero-intro,
.section-heading p,
.pain-grid p,
.platform-grid p,
.route-grid span,
.proposal-card p,
.proposal-card li,
.hero-points,
.site-footer {
    color: var(--muted);
}

.header-links {
    display: flex;
    align-items: center;
    gap: 18px;
}

.header-links a {
    padding: 10px 14px;
    border-radius: 999px;
    transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.header-links a:hover,
.header-links a:focus-visible {
    background: var(--accent-soft);
    color: var(--text);
    transform: translateY(-1px);
}

main {
    display: grid;
    gap: 28px;
    margin: 28px 0;
}

.section-grid,
.pain-section,
.routes-section {
    display: grid;
    gap: 22px;
}

.hero {
    grid-template-columns: 1.2fr 0.95fr;
    align-items: stretch;
}

.hero-copy,
.hero-panel,
.value-strip article,
.pain-grid article,
.platform-grid article,
.route-grid a,
.proposal-card,
.proposal-switcher,
.site-footer {
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.hero-copy {
    padding: 22px;
    border-radius: var(--radius-xl);
}

.eyebrow {
    margin: 0 0 10px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
}

h1 {
    margin: 0;
    font-size: clamp(2.8rem, 5vw, 5.4rem);
    line-height: 0.96;
    letter-spacing: -0.04em;
    max-width: 10ch;
}

.hero-intro {
    max-width: 64ch;
    font-size: 1.08rem;
    line-height: 1.7;
    margin: 22px 0;
}

.hero-actions,
.footer-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.button:hover,
.button:focus-visible,
.proposal-tab:hover,
.proposal-tab:focus-visible,
.route-grid a:hover,
.route-grid a:focus-visible {
    transform: translateY(-2px);
}

.button-primary {
    background: var(--accent-strong);
    color: #fdf9f1;
}

.button-secondary {
    background: transparent;
    border-color: var(--line);
}

.hero-points {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: grid;
    gap: 10px;
}

.hero-points li {
    position: relative;
    padding-left: 18px;
}

.hero-points li::before {
    content: "";
    position: absolute;
    top: 0.62em;
    left: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

.hero-panel {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    padding: 22px;
}

.hero-panel::after {
    content: "";
    position: absolute;
    inset: auto -40px -80px auto;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: var(--accent-soft);
}

.panel-badge {
    display: inline-flex;
    padding: 9px 13px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.78rem;
}

.panel-screen {
    position: relative;
    z-index: 1;
    margin-top: 18px;
    padding: 18px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.66);
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.screen-topline {
    height: 14px;
    width: 120px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent-strong), var(--accent), rgba(255, 255, 255, 0));
    margin-bottom: 16px;
}

.screen-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.screen-grid article,
.platform-grid article,
.pain-grid article,
.route-grid a {
    border-radius: var(--radius-lg);
}

.screen-grid article {
    padding: 16px;
    background: rgba(255, 253, 250, 0.82);
    border: 1px solid var(--line);
}

.screen-grid span,
.platform-grid span {
    display: inline-block;
    color: var(--accent-strong);
    font-size: 0.83rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.screen-grid strong,
.route-grid strong,
.pain-grid h3,
.platform-grid h3 {
    display: block;
    margin-bottom: 8px;
    font-size: 1.06rem;
}

.screen-grid p {
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

.value-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.value-strip article,
.pain-grid article,
.platform-grid article,
.route-grid a,
.proposal-card,
.proposal-switcher {
    padding: 22px;
    border-radius: var(--radius-xl);
}

.value-strip strong {
    display: block;
    margin-bottom: 8px;
    font-size: 1rem;
}

.value-strip p,
.section-heading p,
.proposal-card p,
.proposal-card li,
.pain-grid p,
.platform-grid p,
.route-grid span {
    line-height: 1.7;
    margin: 0;
}

.section-heading h2,
.site-footer h2 {
    margin: 0 0 10px;
    font-size: clamp(1.9rem, 3vw, 3rem);
    line-height: 1.04;
    letter-spacing: -0.03em;
    max-width: 18ch;
}

.section-heading.narrow h2 {
    max-width: 22ch;
}

.proposal-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 18px;
}

.proposal-switcher {
    display: grid;
    gap: 12px;
    align-content: start;
}

.proposal-tab {
    width: 100%;
    text-align: left;
    padding: 16px 18px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.45);
    color: var(--muted);
    cursor: pointer;
    transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.proposal-tab.is-active {
    background: var(--accent-strong);
    border-color: transparent;
    color: #fbf8f1;
}

.proposal-card {
    display: grid;
    gap: 20px;
}

.proposal-card-topline {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    color: var(--accent-strong);
    font-size: 0.84rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.proposal-card h3 {
    margin: 0;
    font-size: clamp(2rem, 3.2vw, 3.4rem);
    line-height: 0.98;
    letter-spacing: -0.04em;
}

.proposal-quote {
    padding: 18px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--accent-soft), rgba(255, 255, 255, 0.4));
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.proposal-quote p {
    margin: 0;
    color: var(--text);
    font-size: 1.08rem;
}

.proposal-columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.proposal-columns h4 {
    margin: 0 0 8px;
    font-size: 0.98rem;
}

.proposal-columns ul {
    padding-left: 18px;
    margin: 0;
    display: grid;
    gap: 8px;
}

.link-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.link-pills a {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--surface-strong);
    border: 1px solid var(--line);
    color: var(--text);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
    transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.link-pills a:hover,
.link-pills a:focus-visible {
    transform: translateY(-2px);
    background: var(--surface-strong);
    border-color: rgba(41, 69, 91, 0.24);
}

.pain-grid,
.platform-grid,
.route-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.pain-grid article,
.platform-grid article,
.route-grid a {
    display: grid;
    gap: 10px;
}

.route-grid a {
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.site-footer {
    margin-top: 24px;
}

.scroll-top-button {
    position: fixed;
    right: 20px;
    bottom: 20px;
    display: none;
    place-items: center;
    width: 56px;
    height: 56px;
    padding: 0;
    border: 1px solid rgba(41, 69, 91, 0.18);
    border-radius: 999px;
    background: rgba(248, 251, 252, 0.96);
    box-shadow: 0 20px 44px rgba(41, 69, 91, 0.22);
    color: var(--accent-strong);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
    z-index: 12;
    cursor: pointer;
}

.scroll-top-button.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-button svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.scroll-top-button:hover,
.scroll-top-button:focus-visible {
    background: var(--surface-strong);
    transform: translateY(-2px);
}

@media (max-width: 980px) {
    .hero,
    .proposal-layout,
    .value-strip,
    .pain-grid,
    .platform-grid,
    .route-grid,
    .proposal-columns {
        grid-template-columns: 1fr;
    }

    .site-header,
    .site-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-header {
        position: static;
        top: auto;
    }

    .header-links {
        flex-wrap: wrap;
    }

    .scroll-top-button {
        display: grid;
    }

    h1 {
        max-width: 12ch;
    }
}

@media (max-width: 640px) {
    .page-shell {
        width: min(100vw - 20px, 1180px);
        padding-top: 12px;
    }

    .site-header,
    .site-footer,
    .value-strip article,
    .proposal-card,
    .proposal-switcher,
    .pain-grid article,
    .platform-grid article,
    .route-grid a,
    .hero-panel {
        border-radius: 22px;
        padding: 18px;
    }

    h1 {
        font-size: clamp(2.3rem, 14vw, 3.4rem);
    }

    .section-heading h2,
    .site-footer h2,
    .proposal-card h3 {
        max-width: none;
    }

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

    .scroll-top-button {
        right: 16px;
        bottom: 16px;
        width: 52px;
        height: 52px;
    }
}