:root {
    --bg: #07121b;
    --panel: #0d1d29;
    --panel-2: #132838;
    --line: rgba(116, 184, 215, 0.18);
    --line-strong: rgba(173, 209, 224, 0.36);
    --text: #f4f1e8;
    --muted: #a7bdc4;
    --amber: #c7a253;
    --danger: #ff5f4f;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

section[id] {
    scroll-margin-top: 110px;
}

body {
    min-width: 320px;
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, Raleway, Helvetica, Arial, sans-serif;
    letter-spacing: 0;
}

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

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 20;
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    padding: 18px clamp(22px, 5vw, 78px);
    border-bottom: 1px solid rgba(116, 184, 215, 0.12);
    background: rgba(7, 18, 27, 0.78);
    backdrop-filter: blur(14px);
    box-shadow: 0 18px 42px rgba(0, 0, 0, 0.18);
    color: var(--text);
}

.brand {
    display: inline-flex;
    align-items: center;
    line-height: 0;
}

.brand-logo {
    display: block;
    width: clamp(112px, 12vw, 154px);
    max-width: 154px;
    max-height: 56px;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.68));
}

.site-nav {
    display: flex;
    align-items: center;
    gap: clamp(18px, 3.3vw, 52px);
}

.site-nav a {
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 0.36em;
    text-transform: uppercase;
    white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus {
    color: var(--amber);
}

.hero {
    position: relative;
    min-height: 720px;
    overflow: hidden;
    isolation: isolate;
    border-bottom: 1px solid var(--line);
}

.hero-media,
.hero-grid {
    position: absolute;
    inset: 0;
}

.hero-media {
    z-index: -3;
    background-image:
        linear-gradient(90deg, rgba(7, 18, 27, 0.98) 0%, rgba(7, 18, 27, 0.9) 38%, rgba(10, 35, 52, 0.58) 70%, rgba(7, 18, 27, 0.74) 100%),
        linear-gradient(0deg, rgba(7, 18, 27, 1) 0%, rgba(7, 18, 27, 0.1) 38%),
        linear-gradient(135deg, rgba(75, 158, 199, 0.22), transparent 42%),
        url('../img/byc-dashboard-bg.png');
    background-position: center;
    background-size: cover;
}

.hero-grid {
    z-index: -2;
    opacity: 0.5;
    background-image:
        linear-gradient(rgba(116, 184, 215, 0.16) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.16) 1px, transparent 1px);
    background-size: 88px 88px;
}

.hero-content {
    width: min(1040px, calc(100% - 44px));
    padding: clamp(112px, 12vh, 142px) 0 82px;
    margin-left: clamp(22px, 6vw, 92px);
}

.section-code,
.eyebrow {
    margin: 0;
    font-weight: 900;
    text-transform: uppercase;
}

.section-code {
    margin-bottom: 24px;
    color: rgba(244, 241, 232, 0.72);
    font-size: clamp(1.25rem, 1.3vw, 1.8rem);
    letter-spacing: 0.62em;
}

.eyebrow {
    margin-bottom: 18px;
    color: var(--amber);
    font-size: clamp(1.15rem, 1.05vw, 1.45rem);
    letter-spacing: 0.38em;
}

h1,
h2,
h3,
p,
dl {
    margin-top: 0;
}

h1 {
    max-width: 760px;
    margin-bottom: 28px;
    font-size: clamp(4.8rem, 7.6vw, 9.8rem);
    line-height: 0.89;
    font-weight: 950;
    text-transform: uppercase;
}

.hero-copy {
    max-width: 790px;
    margin-bottom: 28px;
    color: rgba(244, 241, 232, 0.78);
    font-size: clamp(1.75rem, 1.8vw, 2.25rem);
    line-height: 1.45;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 38px;
}

.btn {
    display: inline-flex;
    min-height: 50px;
    align-items: center;
    justify-content: center;
    padding: 0 26px;
    border: 1px solid var(--line-strong);
    font-size: 1.2rem;
    font-weight: 950;
    letter-spacing: 0.34em;
    text-transform: uppercase;
}

.btn-primary {
    border-color: var(--amber);
    background: var(--amber);
    color: #0b0d0b;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
}

.btn:hover,
.btn:focus {
    transform: translateY(-1px);
}

.metrics {
    display: grid;
    width: min(680px, 100%);
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

.metrics div {
    min-height: 82px;
    padding: 14px 18px;
    background: rgba(9, 25, 37, 0.78);
}

.metrics dt {
    margin-bottom: 5px;
    color: var(--text);
    font-size: clamp(2.8rem, 3.2vw, 4.2rem);
    font-weight: 950;
    line-height: 1;
}

.metrics dd {
    margin: 0;
    color: var(--muted);
    font-size: 1.1rem;
    font-weight: 900;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.trust-strip {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    overflow: hidden;
    padding: 16px 0 15px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: rgba(7, 18, 27, 0.92);
    color: rgba(244, 241, 232, 0.74);
    font-size: 1.1rem;
    font-weight: 950;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    white-space: nowrap;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.trust-strip__track {
    display: flex;
    width: max-content;
    animation: trustMarquee 34s linear infinite;
}

.trust-strip__group {
    display: flex;
    flex: 0 0 auto;
    gap: 44px;
    padding-right: 44px;
}

.trust-strip__group span {
    flex: 0 0 auto;
}

@keyframes trustMarquee {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-33.333%);
    }
}

@media (prefers-reduced-motion: reduce) {
    .trust-strip__track {
        animation: none;
        transform: translateX(0);
    }
}

.challenge {
    position: relative;
    overflow: hidden;
    padding: clamp(70px, 9vw, 126px) clamp(22px, 6vw, 92px);
    background:
        radial-gradient(circle at 78% 22%, rgba(199, 162, 83, 0.11), transparent 28%),
        linear-gradient(rgba(116, 184, 215, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.055) 1px, transparent 1px),
        var(--bg);
    background-size: 88px 88px;
}

.challenge::before,
.challenge::after {
    position: absolute;
    inset: 0;
    content: "";
    pointer-events: none;
}

.challenge::before {
    opacity: 0.42;
    background:
        radial-gradient(circle at 11% 18%, rgba(199, 162, 83, 0.24) 0 3px, transparent 4px),
        radial-gradient(circle at 22% 72%, rgba(116, 184, 215, 0.24) 0 2px, transparent 3px),
        radial-gradient(circle at 38% 34%, rgba(173, 209, 224, 0.22) 0 2px, transparent 3px),
        radial-gradient(circle at 54% 66%, rgba(199, 162, 83, 0.22) 0 3px, transparent 4px),
        radial-gradient(circle at 70% 28%, rgba(173, 209, 224, 0.2) 0 2px, transparent 3px),
        radial-gradient(circle at 84% 78%, rgba(199, 162, 83, 0.22) 0 3px, transparent 4px),
        linear-gradient(31deg, transparent 0 19%, rgba(199, 162, 83, 0.18) 19.1% 19.25%, transparent 19.35% 100%),
        linear-gradient(143deg, transparent 0 28%, rgba(116, 184, 215, 0.18) 28.1% 28.25%, transparent 28.35% 100%),
        linear-gradient(116deg, transparent 0 43%, rgba(199, 162, 83, 0.15) 43.1% 43.25%, transparent 43.35% 100%),
        linear-gradient(24deg, transparent 0 61%, rgba(116, 184, 215, 0.16) 61.1% 61.25%, transparent 61.35% 100%);
}

.challenge::after {
    opacity: 0.22;
    background:
        repeating-linear-gradient(0deg, transparent 0 17px, rgba(116, 184, 215, 0.28) 18px 19px, transparent 20px 44px),
        repeating-linear-gradient(90deg, transparent 0 17px, rgba(116, 184, 215, 0.28) 18px 19px, transparent 20px 44px);
    mask-image: radial-gradient(ellipse at 56% 48%, #000 0 48%, transparent 72%);
}

.section-heading {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(180px, 0.65fr) minmax(280px, 1.35fr);
    gap: 24px;
    align-items: end;
    margin-bottom: clamp(34px, 5vw, 68px);
}

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

h2 {
    margin-bottom: 0;
    font-size: clamp(4.4rem, 8vw, 9.5rem);
    line-height: 0.92;
    font-weight: 950;
    text-transform: uppercase;
}

.challenge-visual {
    position: relative;
    z-index: 1;
    min-height: clamp(280px, 33vw, 470px);
    margin: -18px 0 clamp(28px, 4vw, 48px);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: var(--panel);
    box-shadow: 0 24px 82px rgba(2, 10, 16, 0.34);
}

.challenge-visual::before,
.challenge-visual::after {
    position: absolute;
    inset: 0;
    content: "";
    pointer-events: none;
}

.challenge-visual::before {
    z-index: 1;
    background:
        linear-gradient(90deg, rgba(7, 18, 27, 0.86), rgba(7, 18, 27, 0.16) 48%, rgba(7, 18, 27, 0.82)),
        linear-gradient(0deg, rgba(7, 18, 27, 0.86), transparent 42%);
}

.challenge-visual::after {
    z-index: 2;
    inset: 18px;
    border: 1px solid rgba(116, 184, 215, 0.2);
    background:
        linear-gradient(rgba(116, 184, 215, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.05) 1px, transparent 1px);
    background-size: 42px 42px;
}

.challenge-visual img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.02);
}

.challenge-visual figcaption {
    position: absolute;
    right: clamp(22px, 4vw, 46px);
    bottom: clamp(22px, 4vw, 42px);
    left: clamp(22px, 4vw, 46px);
    z-index: 3;
    display: grid;
    max-width: 650px;
    gap: 10px;
    margin: 0;
}

.challenge-visual figcaption span {
    color: var(--amber);
    font-size: clamp(0.9rem, 0.9vw, 1.1rem);
    font-weight: 950;
    letter-spacing: 0.28em;
    text-transform: uppercase;
}

.challenge-visual figcaption strong {
    color: var(--text);
    font-size: clamp(2rem, 2.5vw, 3.45rem);
    line-height: 1.02;
    text-transform: uppercase;
}

.threat-list {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.threat-card {
    display: flex;
    min-height: 270px;
    flex-direction: column;
    justify-content: space-between;
    gap: 28px;
    padding: clamp(24px, 3vw, 34px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background:
        linear-gradient(145deg, rgba(116, 184, 215, 0.1), rgba(255, 255, 255, 0.025)),
        var(--panel);
    box-shadow: 0 20px 70px rgba(2, 10, 16, 0.28);
}

.threat-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.threat-meta span,
.threat-card small,
.threat-meta strong {
    font-size: 1.15rem;
    font-weight: 950;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.threat-meta span {
    color: var(--amber);
}

.threat-meta strong {
    display: inline-flex;
    min-height: 30px;
    align-items: center;
    justify-content: center;
    padding: 0 11px;
    border: 1px solid rgba(159, 170, 165, 0.26);
    background: rgba(159, 170, 165, 0.08);
    color: var(--muted);
    font-size: 1rem;
    letter-spacing: 0.18em;
}

.threat-meta .risk-high {
    border-color: rgba(255, 95, 79, 0.36);
    background: rgba(255, 95, 79, 0.1);
    color: var(--danger);
}

.threat-body {
    max-width: 660px;
}

.threat-card h3 {
    margin-bottom: 14px;
    font-size: clamp(2.1rem, 2.2vw, 3rem);
    line-height: 1.08;
    font-weight: 950;
}

.threat-card p {
    margin-bottom: 0;
    color: rgba(244, 241, 232, 0.7);
    font-size: 1.55rem;
    line-height: 1.5;
}

.threat-card small {
    display: block;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(244, 241, 232, 0.58);
    line-height: 1.45;
}

.strengths {
    position: relative;
    overflow: hidden;
    padding: clamp(70px, 8vw, 116px) clamp(22px, 6vw, 92px);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background:
        radial-gradient(circle at 18% 18%, rgba(199, 162, 83, 0.13), transparent 27%),
        linear-gradient(rgba(116, 184, 215, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.045) 1px, transparent 1px),
        var(--bg);
    background-size: 88px 88px;
    color: var(--text);
}

.strengths::before {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(145deg, rgba(116, 184, 215, 0.12), transparent 38%),
        radial-gradient(circle at 76% 26%, rgba(199, 162, 83, 0.11), transparent 26%);
    content: "";
    opacity: 0.72;
    pointer-events: none;
}

.strengths .eyebrow {
    color: var(--amber);
}

.strengths-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.strength-card {
    position: relative;
    display: flex;
    min-height: 292px;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    padding: clamp(22px, 2.5vw, 32px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background:
        linear-gradient(145deg, rgba(116, 184, 215, 0.1), rgba(255, 255, 255, 0.025)),
        var(--panel);
    box-shadow: 0 20px 70px rgba(2, 10, 16, 0.28);
    transition:
        border-color 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.strength-card:hover,
.strength-card:focus-within {
    border-color: rgba(199, 162, 83, 0.48);
    box-shadow: 0 26px 80px rgba(2, 10, 16, 0.36);
    transform: translateY(-5px);
}

.strength-card__top {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 44px;
}

.strength-id {
    color: rgba(244, 241, 232, 0.52);
    font-size: 1.1rem;
    font-weight: 950;
    letter-spacing: 0.28em;
    text-transform: uppercase;
}

.strength-icon {
    position: relative;
    display: inline-flex;
    width: 58px;
    height: 58px;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(199, 162, 83, 0.52);
    background: rgba(7, 18, 27, 0.88);
    color: var(--amber);
    box-shadow: 0 12px 28px rgba(2, 10, 16, 0.28);
    transition:
        background 180ms ease,
        border-color 180ms ease,
        color 180ms ease,
        transform 180ms ease;
}

.strength-card:hover .strength-icon,
.strength-card:focus-within .strength-icon {
    border-color: var(--amber);
    background: var(--amber);
    color: #0a1821;
    transform: scale(1.11) rotate(-2deg);
}

.strength-icon::before,
.strength-icon::after {
    position: absolute;
    content: "";
}

.strength-icon__svg {
    width: 40px;
    height: 40px;
    color: currentColor;
}

.strength-icon__svg path,
.strength-icon__svg circle {
    fill: none;
    stroke: currentColor;
    stroke-width: 4;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.strength-icon--visibility::before {
    width: 30px;
    height: 18px;
    border: 3px solid currentColor;
    border-radius: 50%;
}

.strength-icon--visibility::after {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: currentColor;
}

.strength-icon--automation::before {
    width: 28px;
    height: 34px;
    border: 3px solid currentColor;
    border-radius: 3px;
    background:
        linear-gradient(135deg, transparent 0 8px, currentColor 8px 11px, transparent 11px) top right / 14px 14px no-repeat;
}

.strength-icon--automation::after {
    width: 16px;
    height: 3px;
    background: currentColor;
    box-shadow: 0 8px 0 currentColor, 0 16px 0 currentColor;
    transform: translateY(2px);
}

.strength-icon--custom::before {
    width: 32px;
    height: 24px;
    border: 3px solid currentColor;
    border-radius: 4px;
}

.strength-icon--custom::after {
    width: 22px;
    height: 3px;
    background: currentColor;
    box-shadow: 0 -7px 0 currentColor, 0 7px 0 currentColor;
}

.strength-card h3 {
    max-width: 320px;
    margin-bottom: 16px;
    font-size: clamp(1.9rem, 1.7vw, 2.35rem);
    line-height: 1.08;
    font-weight: 950;
    text-transform: uppercase;
}

.strength-card p {
    margin-bottom: 0;
    color: rgba(244, 241, 232, 0.7);
    font-size: 1.32rem;
    line-height: 1.48;
}

.software-gallery {
    position: relative;
    overflow: hidden;
    padding: clamp(70px, 8vw, 116px) clamp(22px, 6vw, 92px);
    border-bottom: 1px solid var(--line);
    background:
        radial-gradient(circle at 78% 16%, rgba(116, 184, 215, 0.13), transparent 27%),
        radial-gradient(circle at 16% 84%, rgba(199, 162, 83, 0.12), transparent 25%),
        linear-gradient(rgba(116, 184, 215, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.045) 1px, transparent 1px),
        #08151f;
    background-size: 88px 88px;
}

.software-gallery::before {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(120deg, rgba(199, 162, 83, 0.08), transparent 34%),
        linear-gradient(290deg, rgba(116, 184, 215, 0.1), transparent 44%);
    content: "";
    opacity: 0.82;
    pointer-events: none;
}

.software-gallery__intro {
    position: relative;
    z-index: 1;
    max-width: 840px;
    margin: -34px 0 clamp(34px, 4.5vw, 58px) auto;
    color: rgba(244, 241, 232, 0.72);
    font-size: clamp(1.35rem, 1.35vw, 1.72rem);
    line-height: 1.52;
}

.software-gallery-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.software-card {
    position: relative;
    min-width: 0;
    margin: 0;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background:
        linear-gradient(145deg, rgba(116, 184, 215, 0.1), rgba(255, 255, 255, 0.025)),
        var(--panel);
    box-shadow: 0 20px 70px rgba(2, 10, 16, 0.28);
    transition:
        border-color 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.software-card:hover,
.software-card:focus-within {
    border-color: rgba(199, 162, 83, 0.5);
    box-shadow: 0 26px 80px rgba(2, 10, 16, 0.38);
    transform: translateY(-5px);
}

.software-shot {
    position: relative;
    min-height: 288px;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background:
        linear-gradient(180deg, rgba(19, 40, 56, 0.94), rgba(8, 21, 31, 0.98)),
        var(--panel-2);
}

.software-shot::before {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(116, 184, 215, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.055) 1px, transparent 1px);
    background-size: 32px 32px;
    content: "";
    opacity: 0.82;
    pointer-events: none;
}

.software-shot__chrome {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 28px 18px 0;
    color: rgba(244, 241, 232, 0.7);
    font-size: 1rem;
    font-weight: 950;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.software-shot__chrome strong {
    color: var(--text);
    font-size: 1.05rem;
    letter-spacing: 0.16em;
    text-align: right;
}

.software-shot__body {
    position: relative;
    z-index: 1;
    display: flex;
    min-height: 232px;
    align-items: center;
    justify-content: center;
    padding: 18px;
    transform: scale(1);
    transform-origin: center;
    transition: transform 220ms ease;
}

.software-card:hover .software-shot__body,
.software-card:focus-within .software-shot__body {
    transform: scale(1.045);
}

.software-shot__body::before {
    position: relative;
    display: block;
    width: min(72%, 260px);
    aspect-ratio: 16 / 9;
    border: 1px solid rgba(116, 184, 215, 0.18);
    background:
        linear-gradient(135deg, transparent calc(50% - 1px), rgba(199, 162, 83, 0.46) 50%, transparent calc(50% + 1px)),
        linear-gradient(45deg, transparent calc(50% - 1px), rgba(199, 162, 83, 0.46) 50%, transparent calc(50% + 1px)),
        rgba(7, 18, 27, 0.62);
    content: "";
    opacity: 0.86;
}

.software-shot__body span {
    position: absolute;
    left: 50%;
    bottom: 26px;
    color: rgba(244, 241, 232, 0.55);
    font-size: 0.78rem;
    font-weight: 950;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    transform: translateX(-50%);
    white-space: nowrap;
}

.software-card figcaption {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    gap: 8px;
    min-height: 112px;
    align-content: end;
    padding: 52px 22px 20px;
    background: linear-gradient(0deg, rgba(7, 18, 27, 0.96), rgba(7, 18, 27, 0.72) 64%, transparent);
    opacity: 0;
    transform: translateY(18px);
    transition:
        opacity 180ms ease,
        transform 180ms ease;
}

.software-card:hover figcaption,
.software-card:focus-within figcaption {
    opacity: 1;
    transform: translateY(0);
}

.software-card figcaption strong {
    color: var(--text);
    font-size: 1.35rem;
    font-weight: 950;
    line-height: 1.1;
    text-transform: uppercase;
}

.software-card figcaption span {
    color: rgba(244, 241, 232, 0.72);
    font-size: 1.12rem;
    font-weight: 700;
    line-height: 1.42;
}

.video-showcase {
    position: relative;
    overflow: hidden;
    padding: clamp(56px, 6vw, 82px) clamp(22px, 6vw, 92px);
    border-bottom: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(7, 18, 27, 0.98), rgba(10, 28, 41, 0.98)),
        #07121b;
}

.video-showcase::before {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(116, 184, 215, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.05) 1px, transparent 1px);
    background-size: 74px 74px;
    content: "";
    opacity: 0.8;
    pointer-events: none;
}

.video-showcase::after {
    position: absolute;
    right: -12vw;
    bottom: -24vw;
    width: 46vw;
    min-width: 420px;
    aspect-ratio: 1;
    border: 1px solid rgba(199, 162, 83, 0.22);
    content: "";
    opacity: 0.5;
    transform: rotate(18deg);
    pointer-events: none;
}

.video-showcase .section-heading {
    grid-template-columns: minmax(180px, 0.46fr) minmax(280px, 1.54fr);
    margin-bottom: clamp(24px, 2.4vw, 34px);
}

.video-showcase h2 {
    max-width: 980px;
    font-size: clamp(3rem, 4.5vw, 5.25rem);
    line-height: 1;
}

.video-showcase__layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
    gap: clamp(26px, 4vw, 54px);
    align-items: stretch;
}

.video-showcase__frame {
    position: relative;
    display: block;
    width: 100%;
    height: clamp(300px, 27vw, 460px);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 0;
    padding: 0;
    background:
        linear-gradient(90deg, rgba(7, 18, 27, 0.82), rgba(7, 18, 27, 0.2) 48%, rgba(7, 18, 27, 0.82)),
        linear-gradient(0deg, rgba(7, 18, 27, 0.88), rgba(7, 18, 27, 0.08) 52%, rgba(7, 18, 27, 0.58)),
        linear-gradient(135deg, rgba(116, 184, 215, 0.14), transparent 34%),
        linear-gradient(315deg, rgba(199, 162, 83, 0.18), transparent 30%),
        linear-gradient(rgba(116, 184, 215, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.06) 1px, transparent 1px),
        url('../img/byc-network-earth-02.png'),
        #0d1d29;
    background-position: center;
    background-size: auto, auto, auto, auto, 42px 42px, 42px 42px, cover, auto;
    box-shadow: 0 28px 90px rgba(2, 10, 16, 0.42);
    color: var(--text);
    cursor: pointer;
    font: inherit;
    text-align: inherit;
    appearance: none;
}

.video-showcase__frame::before,
.video-showcase__frame::after {
    position: absolute;
    content: "";
    pointer-events: none;
}

.video-showcase__frame::before {
    inset: 18px;
    border: 1px solid rgba(116, 184, 215, 0.2);
}

.video-showcase__frame::after {
    inset: 0;
    background:
        linear-gradient(90deg, rgba(7, 18, 27, 0.76), transparent 28%, transparent 72%, rgba(7, 18, 27, 0.76)),
        radial-gradient(circle at 50% 46%, rgba(116, 184, 215, 0.16), transparent 28%);
}

.video-showcase__scanline {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180deg, transparent, rgba(244, 241, 232, 0.12), transparent);
    opacity: 0.42;
    transform: translateY(-48%);
    transition: transform 260ms ease;
}

.video-showcase__frame:hover .video-showcase__scanline,
.video-showcase__frame:focus .video-showcase__scanline {
    transform: translateY(48%);
}

.video-showcase__hud {
    position: absolute;
    right: 28px;
    left: 28px;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    color: rgba(244, 241, 232, 0.72);
    font-size: clamp(0.82rem, 0.85vw, 1rem);
    font-weight: 950;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.video-showcase__hud--top {
    top: 28px;
}

.video-showcase__hud strong {
    color: var(--amber);
}

.video-showcase__play {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 3;
    display: grid;
    width: clamp(74px, 8vw, 112px);
    aspect-ratio: 1;
    place-items: center;
    border: 1px solid rgba(199, 162, 83, 0.72);
    background: rgba(199, 162, 83, 0.16);
    box-shadow:
        0 0 0 12px rgba(199, 162, 83, 0.08),
        0 22px 58px rgba(2, 10, 16, 0.52);
    transform: translate(-50%, -50%);
    transition:
        background 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.video-showcase__play svg {
    width: 38%;
    fill: var(--text);
    transform: translateX(4%);
}

.video-showcase__frame:hover .video-showcase__play,
.video-showcase__frame:focus .video-showcase__play {
    background: rgba(199, 162, 83, 0.28);
    box-shadow:
        0 0 0 16px rgba(199, 162, 83, 0.1),
        0 26px 68px rgba(2, 10, 16, 0.58);
    transform: translate(-50%, -50%) scale(1.04);
}

.video-showcase__label {
    position: absolute;
    right: 28px;
    bottom: 26px;
    z-index: 2;
    color: rgba(244, 241, 232, 0.54);
    font-size: clamp(0.78rem, 0.82vw, 0.95rem);
    font-weight: 950;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.video-showcase__copy {
    display: grid;
    gap: 24px;
    align-content: center;
}

.video-showcase__copy p {
    margin: 0;
    color: rgba(244, 241, 232, 0.74);
    font-size: clamp(1.28rem, 1.25vw, 1.62rem);
    font-weight: 700;
    line-height: 1.56;
}

.video-showcase__copy ul {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.video-showcase__copy li {
    position: relative;
    padding: 14px 16px 14px 44px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(13, 29, 41, 0.72);
    color: var(--text);
    font-size: 1rem;
    font-weight: 950;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.video-showcase__copy li::before {
    position: absolute;
    top: 50%;
    left: 16px;
    width: 12px;
    height: 12px;
    border: 1px solid var(--amber);
    content: "";
    transform: translateY(-50%) rotate(45deg);
}

@media (max-width: 960px) {
    .site-header {
        position: absolute;
        align-items: center;
        padding: 16px 22px;
    }

    .brand-logo {
        width: 106px;
    }

    .site-nav {
        gap: 14px;
    }

    .site-nav a {
        font-size: 1.05rem;
        letter-spacing: 0.18em;
    }

    .section-heading,
    .threat-list {
        grid-template-columns: 1fr;
    }

    .strengths-grid,
    .software-gallery-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .video-showcase__layout {
        grid-template-columns: 1fr;
    }

    .software-gallery__intro {
        margin-top: -18px;
        margin-left: 0;
    }
}

@media (max-width: 620px) {
    .site-header {
        align-items: flex-start;
    }

    .site-nav {
        display: grid;
        grid-template-columns: repeat(2, auto);
        gap: 10px 14px;
        justify-content: end;
    }

    .site-nav a {
        font-size: 0.95rem;
    }

    .hero {
        min-height: 720px;
    }

    .hero-media {
        background-position: center right;
    }

    .hero-content {
        width: calc(100% - 32px);
        padding-top: 104px;
        margin-left: 16px;
    }

    .section-code {
        font-size: 1rem;
        line-height: 1.6;
        letter-spacing: 0.42em;
    }

    .eyebrow {
        line-height: 1.55;
        letter-spacing: 0.24em;
    }

    h1 {
        max-width: 100%;
        font-size: clamp(3.2rem, 12vw, 4.55rem);
        line-height: 0.95;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        padding: 0 16px;
        font-size: 1rem;
        letter-spacing: 0.2em;
    }

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

    .trust-strip {
        font-size: 0.95rem;
        letter-spacing: 0.32em;
    }

    .challenge,
    .strengths,
    .software-gallery,
    .video-showcase {
        padding-right: 16px;
        padding-left: 16px;
    }

    .threat-card,
    .strength-card {
        padding: 22px 18px;
    }

    .strengths-grid,
    .software-gallery-grid {
        grid-template-columns: 1fr;
    }

    .strength-card {
        min-height: 240px;
    }

    .strength-card__top {
        margin-bottom: 34px;
    }

    .strength-icon {
        width: 52px;
        height: 52px;
    }

    .software-shot {
        min-height: 252px;
    }

    .software-shot__chrome {
        align-items: flex-start;
        flex-direction: column;
    }

    .video-showcase__frame::before {
        inset: 12px;
    }

    .video-showcase__hud {
        right: 18px;
        left: 18px;
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
        line-height: 1.35;
    }

    .video-showcase__hud--top {
        top: 18px;
    }

    .video-showcase__label {
        right: 18px;
        bottom: 16px;
    }

    .software-card figcaption {
        position: relative;
        min-height: 0;
        padding: 18px;
        background: rgba(7, 18, 27, 0.9);
        opacity: 1;
        transform: none;
    }
    .contact {
        padding-right: 16px;
        padding-left: 16px;
    }

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

    .contact-cta,
    .contact-form__submit {
        font-size: 1rem;
        letter-spacing: 0.2em;
    }

    .contact-cta {
        min-height: 62px;
        padding: 0 18px;
    }
}

/* ============================================================
   CONTACT
   ============================================================ */

.contact {
    position: relative;
    overflow: hidden;
    padding: clamp(70px, 8vw, 116px) clamp(22px, 6vw, 92px);
    border-bottom: 1px solid var(--line);
    background:
        radial-gradient(circle at 22% 20%, rgba(199, 162, 83, 0.12), transparent 30%),
        linear-gradient(rgba(116, 184, 215, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.045) 1px, transparent 1px),
        var(--bg);
    background-size: auto, 88px 88px, 88px 88px, auto;
    color: var(--text);
}

.contact__intro {
    position: relative;
    z-index: 1;
    max-width: 760px;
    margin-bottom: clamp(34px, 4vw, 56px);
    color: rgba(244, 241, 232, 0.78);
    font-size: clamp(1.5rem, 1.5vw, 1.9rem);
    line-height: 1.5;
}

.contact__layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
}

.contact__actions {
    display: grid;
    gap: 18px;
}

/* --- CTA buttons --- */

.contact-cta {
    display: flex;
    width: 100%;
    min-height: 74px;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 0 26px;
    border: 1px solid var(--line-strong);
    border-radius: 0;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    font-family: inherit;
    font-size: 1.2rem;
    font-weight: 950;
    letter-spacing: 0.34em;
    text-align: left;
    text-transform: uppercase;
    cursor: pointer;
    transition:
        background 180ms ease,
        border-color 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.contact-cta svg {
    width: 22px;
    height: 22px;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: square;
}

.contact-cta:hover,
.contact-cta:focus-visible {
    border-color: var(--amber);
    background: rgba(199, 162, 83, 0.12);
    outline: none;
    transform: translateY(-1px);
}

.contact-cta--primary {
    border-color: var(--amber);
    background: var(--amber);
    color: #0b0d0b;
}

.contact-cta--primary:hover,
.contact-cta--primary:focus-visible {
    border-color: #d8b466;
    background: #d8b466;
    box-shadow: 0 14px 34px rgba(199, 162, 83, 0.24);
    color: #0b0d0b;
}

/* --- panels --- */

.contact-panel {
    padding: clamp(24px, 3vw, 34px);
    border: 1px solid var(--line);
    background:
        linear-gradient(145deg, rgba(116, 184, 215, 0.08), rgba(255, 255, 255, 0.02)),
        var(--panel);
}

.contact-panel--form {
    height: 100%;
}

.contact-panel__label {
    margin-bottom: 22px;
    color: var(--amber);
    font-size: 1rem;
    font-weight: 900;
    letter-spacing: 0.32em;
    text-transform: uppercase;
}

.contact-details {
    display: grid;
    gap: 16px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 0;
    color: rgba(244, 241, 232, 0.82);
    font-size: 1.15rem;
    letter-spacing: 0.04em;
}

.contact-details svg {
    width: 20px;
    height: 20px;
    flex: 0 0 auto;
    fill: none;
    stroke: var(--amber);
    stroke-width: 1.5;
    stroke-linecap: square;
}

.contact-details a:hover,
.contact-details a:focus-visible {
    color: var(--amber);
}

/* --- form --- */

.contact-form {
    display: grid;
    gap: 18px;
    margin: 0;
}

.contact-form__field {
    display: grid;
    gap: 8px;
}

.contact-form label {
    color: rgba(244, 241, 232, 0.72);
    font-size: 0.9rem;
    font-weight: 950;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0 16px;
    border: 1px solid var(--line);
    border-radius: 0;
    background: rgba(7, 18, 27, 0.78);
    color: #fff;
    font-family: inherit;
    font-size: 1.05rem;
    letter-spacing: 0.04em;
    transition:
        border-color 180ms ease,
        box-shadow 180ms ease;
}

.contact-form input {
    height: 50px;
}

.contact-form textarea {
    padding: 14px 16px;
    line-height: 1.5;
    resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--amber);
    box-shadow: 0 0 0 3px rgba(199, 162, 83, 0.18);
    outline: none;
}

.contact-form input:-webkit-autofill,
.contact-form input:-webkit-autofill:hover,
.contact-form input:-webkit-autofill:focus {
    -webkit-text-fill-color: #fff;
    caret-color: #fff;
    box-shadow: inset 0 0 0 1000px rgba(7, 18, 27, 0.98);
    transition: background-color 9999s ease-in-out 0s;
}

.contact-form__submit {
    width: 100%;
    height: 56px;
    margin-top: 6px;
    border: 1px solid var(--amber);
    border-radius: 0;
    background: var(--amber);
    color: #0b0d0b;
    font-family: inherit;
    font-size: 1.15rem;
    font-weight: 950;
    letter-spacing: 0.34em;
    text-transform: uppercase;
    cursor: pointer;
    transition:
        background 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.contact-form__submit:hover,
.contact-form__submit:focus-visible {
    border-color: #d8b466;
    background: #d8b466;
    box-shadow: 0 14px 34px rgba(199, 162, 83, 0.24);
    outline: none;
    transform: translateY(-1px);
}

/* ============================================================
   ADMIN LOGIN
   ============================================================ */

.admin-login {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: clamp(140px, 18vh, 200px) clamp(22px, 6vw, 92px) clamp(70px, 10vh, 120px);
    background:
        radial-gradient(circle at 50% 22%, rgba(199, 162, 83, 0.12), transparent 34%),
        linear-gradient(rgba(116, 184, 215, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 184, 215, 0.045) 1px, transparent 1px),
        var(--bg);
    background-size: auto, 88px 88px, 88px 88px, auto;
}

.admin-login__card {
    width: min(440px, 100%);
    padding: clamp(30px, 4vw, 46px) clamp(24px, 3.5vw, 40px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background:
        linear-gradient(145deg, rgba(116, 184, 215, 0.1), rgba(255, 255, 255, 0.025)),
        var(--panel);
    box-shadow: 0 24px 82px rgba(2, 10, 16, 0.42);
    text-align: center;
}

.admin-login__title {
    max-width: 100%;
    margin-bottom: clamp(26px, 3.5vw, 38px);
    color: var(--text);
    font-size: clamp(2.4rem, 3.6vw, 3.2rem);
    line-height: 1.05;
    font-weight: 950;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-align: center;
}

.admin-login__form {
    display: grid;
    gap: 20px;
    margin: 0;
    text-align: left;
}

.admin-login__form .input {
    display: grid;
    gap: 8px;
    margin: 0;
}

.admin-login__form label {
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 950;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.admin-login__form input[type="text"],
.admin-login__form input[type="password"] {
    width: 100%;
    height: 50px;
    padding: 0 16px;
    border: 1px solid var(--line-strong);
    border-radius: 0;
    background: rgba(7, 18, 27, 0.78);
    color: #fff;
    font-family: inherit;
    font-size: 1.05rem;
    letter-spacing: 0.06em;
    transition:
        border-color 180ms ease,
        box-shadow 180ms ease;
}

.admin-login__form input[type="text"]::placeholder,
.admin-login__form input[type="password"]::placeholder {
    color: rgba(255, 255, 255, 0.45);
}

.admin-login__form input[type="text"]:focus,
.admin-login__form input[type="password"]:focus {
    border-color: var(--amber);
    box-shadow: 0 0 0 3px rgba(199, 162, 83, 0.18);
    outline: none;
    color: #fff;
}

/* keep Chrome autofill from painting the field white */
.admin-login__form input:-webkit-autofill,
.admin-login__form input:-webkit-autofill:hover,
.admin-login__form input:-webkit-autofill:focus {
    -webkit-text-fill-color: #fff;
    caret-color: #fff;
    box-shadow: inset 0 0 0 1000px rgba(7, 18, 27, 0.98);
    transition: background-color 9999s ease-in-out 0s;
}

.admin-login__submit {
    width: 100%;
    height: 52px;
    margin: 8px 0 0;
    border: 1px solid var(--amber);
    border-radius: 0;
    background: var(--amber);
    color: #0b0d0b;
    font-family: inherit;
    font-size: 1.15rem;
    font-weight: 950;
    letter-spacing: 0.34em;
    text-transform: uppercase;
    cursor: pointer;
    transition:
        background 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.admin-login__submit:hover,
.admin-login__submit:focus {
    background: #d8b466;
    border-color: #d8b466;
    box-shadow: 0 14px 34px rgba(199, 162, 83, 0.24);
    color: #0b0d0b;
    transform: translateY(-1px);
}

@media (max-width: 620px) {
    .admin-login {
        padding-right: 16px;
        padding-left: 16px;
    }

    .admin-login__submit {
        letter-spacing: 0.2em;
    }
}

/* ============================================================
   ERROR PAGE (404)
   Reuses the hero system so the page reads as part of the site.
   ============================================================ */

.hero--error {
    display: flex;
    min-height: 100vh;
    align-items: center;
    border-bottom: 0;
}

.hero--error .hero-content {
    padding-bottom: clamp(56px, 8vh, 96px);
}

.hero--error h1 {
    max-width: 900px;
}

.metrics--error {
    width: min(720px, 100%);
    grid-template-columns: minmax(0, 0.4fr) minmax(0, 1.6fr);
}

.metrics--error .metrics__path {
    overflow-wrap: anywhere;
    font-size: clamp(1.5rem, 1.8vw, 2.1rem);
    line-height: 1.15;
}

@media (max-width: 620px) {
    .hero--error {
        min-height: auto;
        padding-bottom: 24px;
    }

    .metrics--error {
        grid-template-columns: 1fr;
    }

    .metrics--error .metrics__path {
        font-size: 1.35rem;
    }
}