:root {
    --header-height: 78px;
}

html[data-bs-theme="light"] {
    color-scheme: light;
    --bg-top: #0a1a2f;
    --bg-bottom: #040812;
    --bg-radial: rgba(90, 63, 255, 0.14);
    --surface: rgba(10, 26, 47, 0.72);
    --surface-2: rgba(4, 8, 18, 0.82);
    --ink: #e6f7ff;
    --muted: #9fb1c5;
    --line: rgba(93, 244, 255, 0.2);
    --header-bg: rgba(4, 8, 18, 0.64);
    --footer-bg: rgba(4, 8, 18, 0.54);
    --nav-hover-bg: rgba(0, 229, 255, 0.08);
    --accent: #00e5ff;
    --accent-hover: #5df4ff;
    --active-ink: #040812;
    --card-shadow: 0 18px 44px rgba(0, 0, 0, 0.34);
    --code-bg: rgba(93, 244, 255, 0.12);
    --code-ink: #c7f6ff;
    --outline-hover-bg: rgba(0, 229, 255, 0.12);
}

html[data-bs-theme="dark"] {
    color-scheme: dark;
    --bg-top: #0a1a2f;
    --bg-bottom: #040812;
    --bg-radial: rgba(90, 63, 255, 0.18);
    --surface: rgba(10, 26, 47, 0.72);
    --surface-2: rgba(4, 8, 18, 0.82);
    --ink: #e6f7ff;
    --muted: #9fb1c5;
    --line: rgba(93, 244, 255, 0.2);
    --header-bg: rgba(4, 8, 18, 0.64);
    --footer-bg: rgba(4, 8, 18, 0.54);
    --nav-hover-bg: rgba(0, 229, 255, 0.08);
    --accent: #00e5ff;
    --accent-hover: #5df4ff;
    --active-ink: #040812;
    --card-shadow: 0 18px 44px rgba(0, 0, 0, 0.34);
    --code-bg: rgba(93, 244, 255, 0.12);
    --code-ink: #c7f6ff;
    --outline-hover-bg: rgba(0, 229, 255, 0.12);
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: "Noto Serif", Georgia, "Times New Roman", serif;
    color: var(--ink);
    background: radial-gradient(
        1000px 720px at 50% 32%,
        var(--bg-top),
        var(--bg-bottom) 70%
    );
    transition:
        background 0.25s ease,
        color 0.25s ease;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -2;
    background:
        radial-gradient(
            760px 420px at 67% 34%,
            var(--bg-radial),
            transparent 62%
        ),
        radial-gradient(
            860px 520px at 33% 68%,
            rgba(0, 229, 255, 0.09),
            transparent 68%
        ),
        url("/static/images/background.jpg") center center / cover no-repeat
            fixed;
    opacity: 0.8;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    background: repeating-linear-gradient(
        to bottom,
        rgba(230, 247, 255, 0.024) 0,
        rgba(230, 247, 255, 0.024) 1px,
        transparent 2px,
        transparent 4px
    );
    opacity: 0.3;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: "Exo 2", "Trebuchet MS", Verdana, sans-serif;
}

.page-shell {
    min-height: 100vh;
    display: grid;
    grid-template-rows: 1fr auto;
}

header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1030;
}

.site-navbar {
    --bs-navbar-toggler-focus-width: 0;
    min-height: var(--header-height);
    background: var(--header-bg);
    border-color: var(--line) !important;
    backdrop-filter: blur(10px);
    transition:
        background-color 0.25s ease,
        border-color 0.25s ease;
}

.site-navbar .navbar-toggler:focus,
.site-navbar .navbar-toggler:active,
.site-navbar .navbar-toggler:focus-visible {
    box-shadow: none;
}

.site-navbar .navbar-brand {
    color: var(--ink);
    font-family: "Exo 2", "Trebuchet MS", Verdana, sans-serif;
    font-size: 0.92rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    line-height: 1.15;
}

.site-navbar .navbar-brand:hover {
    color: var(--accent-hover);
}

.brand-beacon {
    width: 0.62rem;
    height: 0.62rem;
    border-radius: 999px;
    background: var(--accent);
    box-shadow:
        0 0 0.4rem var(--accent),
        0 0 1.05rem rgba(0, 229, 255, 0.55);
    animation: beacon-pulse 1.8s ease-in-out infinite;
}

.brand-stack {
    display: inline-flex;
    flex-direction: column;
}

.brand-main {
    font-weight: 700;
    letter-spacing: 0.12em;
}

.brand-sub {
    font-size: 0.66rem;
    color: var(--muted);
    letter-spacing: 0.22em;
}

.site-navbar .nav-link {
    color: var(--muted);
    border-radius: 999px;
    padding: 0.4rem 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.74rem;
    transition:
        color 0.2s ease,
        background-color 0.2s ease;
}

.site-navbar .nav-link:hover {
    color: var(--ink);
    background: var(--nav-hover-bg);
}

.site-navbar .nav-link.active {
    color: var(--active-ink);
    background: var(--accent);
}

.navbar-toggler {
    box-shadow: none;
}

.site-main {
    display: flex;
    padding-top: calc(var(--header-height) + 1rem);
}

.site-card {
    border: 1px solid var(--line);
    border-radius: 1.1rem;
    background: linear-gradient(160deg, var(--surface), var(--surface-2));
    box-shadow: var(--card-shadow);
    color: var(--ink);
    backdrop-filter: blur(8px);
    transition:
        background 0.25s ease,
        border-color 0.25s ease,
        box-shadow 0.25s ease,
        color 0.25s ease;
}

.site-card .card-body {
    width: 100%;
}

.software-shot {
    position: relative;
    display: block;
    width: 100%;
    max-width: 250px;
    margin-inline: auto;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 0.85rem;
    background: var(--surface-2);
    box-shadow: 0 8px 22px rgba(10, 20, 40, 0.12);
}

.software-shot img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition:
        transform 0.2s ease,
        filter 0.2s ease;
}

.software-shot:hover img {
    transform: scale(1.02);
    filter: brightness(1.05);
}

.software-shot-caption {
    position: absolute;
    right: 0.65rem;
    bottom: 0.65rem;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.58);
    color: #fff;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.2rem 0.55rem;
}

.eyebrow {
    margin: 0 0 0.6rem;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    font-size: 0.8rem;
    color: var(--muted);
}

code {
    font-size: 0.95em;
    color: var(--code-ink);
    background: var(--code-bg);
    border-radius: 0.35rem;
    padding: 0.1em 0.35em;
    transition:
        background-color 0.25s ease,
        color 0.25s ease;
}

.btn-primary {
    --bs-btn-bg: var(--accent);
    --bs-btn-border-color: var(--accent);
    --bs-btn-hover-bg: var(--accent-hover);
    --bs-btn-hover-border-color: var(--accent-hover);
    --bs-btn-color: var(--active-ink);
    --bs-btn-hover-color: var(--active-ink);
}

.btn-outline-secondary {
    --bs-btn-color: var(--muted);
    --bs-btn-border-color: var(--line);
    --bs-btn-hover-bg: var(--outline-hover-bg);
    --bs-btn-hover-color: var(--ink);
    --bs-btn-hover-border-color: var(--line);
}

.site-footer {
    background: var(--footer-bg);
    border-color: var(--line) !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition:
        background-color 0.25s ease,
        border-color 0.25s ease;
}

.site-footer .text-body-secondary {
    color: var(--muted) !important;
}

.footer-console {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 0.69rem;
}

.footer-console strong {
    color: var(--accent-hover);
}

.transmission-hero {
    position: relative;
    overflow: hidden;
}

.transmission-hero::before {
    content: "";
    position: absolute;
    inset: -1px;
    background: radial-gradient(
        760px 340px at 50% 0%,
        rgba(0, 229, 255, 0.14),
        transparent 65%
    );
    pointer-events: none;
}

.transmission-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1.5rem;
    align-items: center;
}

.hero-kicker {
    margin: 0 0 0.7rem;
    font-size: 0.74rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-hover);
}

.hero-subtext {
    max-width: 56ch;
    color: var(--muted);
}

.hero-actions {
    display: flex;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.signal-panel {
    border: 1px solid var(--line);
    border-radius: 1rem;
    background: rgba(4, 8, 18, 0.28);
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

.signal-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        transparent 0%,
        transparent 44%,
        rgba(0, 229, 255, 0.18) 50%,
        transparent 56%,
        transparent 100%
    );
    transform: translateY(-100%);
    animation: scan-sweep 5.2s linear infinite;
    pointer-events: none;
}

.signal-emblem {
    aspect-ratio: 1 / 1;
    border-radius: 0.85rem;
    border: 1px solid rgba(93, 244, 255, 0.14);
    background:
        radial-gradient(
            circle at 50% 50%,
            rgba(93, 244, 255, 0.26),
            transparent 44%
        ),
        radial-gradient(
            circle at 50% 67%,
            rgba(90, 63, 255, 0.2),
            transparent 66%
        ),
        rgba(4, 8, 18, 0.34);
    display: grid;
    place-items: center;
    overflow: hidden;
}

.signal-logo {
    border-radius: 10px;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 45%;
    filter: drop-shadow(0 0 1rem rgba(0, 229, 255, 0.28));
}

.signal-emblem-portrait {
    aspect-ratio: 3 / 4;
}

.signal-logo-frame {
    width: 100%;
    height: 100%;
    padding: clamp(0.45rem, 1.6vw, 0.9rem);
    border-radius: 10px;
    overflow: hidden;
}

.signal-core {
    width: 58%;
    aspect-ratio: 1 / 1;
    border: 2px solid rgba(93, 244, 255, 0.74);
    border-radius: 999px;
    position: relative;
    box-shadow:
        0 0 1rem rgba(0, 229, 255, 0.35),
        inset 0 0 0.8rem rgba(0, 229, 255, 0.18);
}

.signal-core::before,
.signal-core::after {
    content: "";
    position: absolute;
    inset: 12%;
    border: 1px solid rgba(93, 244, 255, 0.42);
    border-radius: 999px;
}

.signal-core::after {
    inset: 26%;
}

.signal-tower {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0.12rem;
    height: 42%;
    transform: translate(-50%, -20%);
    background: var(--accent-hover);
    box-shadow: 0 0 0.8rem rgba(93, 244, 255, 0.48);
}

.status-card .card-title {
    font-size: 0.72rem;
    letter-spacing: 0.17em;
    text-transform: uppercase;
    color: var(--accent-hover);
    margin-bottom: 0.5rem;
}

.transmission-log {
    border: 1px solid var(--line);
    border-radius: 1rem;
    background: linear-gradient(
        180deg,
        rgba(4, 8, 18, 0.56),
        rgba(4, 8, 18, 0.2)
    );
    backdrop-filter: blur(8px);
}

.log-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.log-label,
.log-meter {
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.log-label {
    color: var(--accent-hover);
}

.log-meter {
    color: var(--muted);
}

.log-entry {
    border: 1px solid rgba(93, 244, 255, 0.1);
    border-radius: 0.85rem;
    background: rgba(10, 26, 47, 0.24);
    padding: 0.7rem 0.8rem;
}

.log-time {
    font-family: "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 0.74rem;
    color: var(--muted);
}

@keyframes beacon-pulse {
    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.22);
        opacity: 0.64;
    }
}

@keyframes scan-sweep {
    from {
        transform: translateY(-100%);
    }

    to {
        transform: translateY(100%);
    }
}

@media (max-width: 992px) {
    .site-navbar .nav-link {
        margin-top: 0.25rem;
    }

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

    .signal-panel {
        max-width: 360px;
        width: 100%;
        margin-inline: auto;
    }

    .footer-console {
        justify-content: flex-start;
        gap: 0.7rem;
    }
}