/* C4COMMS site styles — layered on brand.css (palette + utilities). */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--c4-font);
    line-height: 1.6;
}

/* ---------- Navigation ---------- */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: color-mix(in srgb, var(--c4-dark) 82%, transparent);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid color-mix(in srgb, var(--c4-data-blue) 22%, transparent);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    gap: 20px;
}
.nav-logo img { height: 46px; width: auto; display: block; }
.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
    margin: 0; padding: 0;
}
.nav-menu a {
    color: var(--c4-silver);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.4px;
}
.nav-menu a:hover { color: var(--c4-data-blue); }
.nav-menu a.nav-cta {
    color: var(--c4-white);
    background: var(--c4-blue);
    padding: 8px 18px;
    border-radius: 999px;
    font-weight: 600;
}
.nav-menu a.nav-cta:hover { background: var(--c4-data-blue); color: var(--c4-dark); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span {
    display: block;
    width: 24px; height: 2px;
    background: var(--c4-silver);
    margin: 5px 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: 150px 0 90px;
    text-align: center;
    overflow: hidden;
}
.hero-inner { position: relative; z-index: 1; }
.hero-lockup {
    width: min(720px, 92%);
    height: auto;
    margin: 0 auto 26px;
    display: block;
}
.hero-tag {
    font-size: clamp(1.05rem, 2.4vw, 1.35rem);
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--c4-silver);
    margin: 0 0 10px;
}
.hero-veteran {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--c4-signal-orange);
    margin: 0 0 34px;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-glow {
    position: absolute;
    left: 50%; bottom: -260px;
    transform: translateX(-50%);
    width: 1400px; height: 480px;
    background: radial-gradient(ellipse at center,
        color-mix(in srgb, var(--c4-blue) 34%, transparent) 0%,
        color-mix(in srgb, var(--c4-data-blue) 14%, transparent) 42%,
        transparent 72%);
    pointer-events: none;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 13px 30px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.98rem;
    letter-spacing: 0.5px;
    text-decoration: none;
    border: 0;
    cursor: pointer;
    font-family: var(--c4-font);
    transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--c4-blue); color: var(--c4-white); }
.btn-primary:hover { background: var(--c4-data-blue); color: var(--c4-dark); }
.btn-ghost {
    background: transparent;
    color: var(--c4-silver);
    border: 1px solid color-mix(in srgb, var(--c4-data-blue) 55%, transparent);
}
.btn-ghost:hover { border-color: var(--c4-data-blue); color: var(--c4-data-blue); }

/* ---------- Sections ---------- */
.section { padding: 84px 0; }
.section-alt {
    background: color-mix(in srgb, var(--c4-navy) 42%, transparent);
    border-top: 1px solid color-mix(in srgb, var(--c4-data-blue) 14%, transparent);
    border-bottom: 1px solid color-mix(in srgb, var(--c4-data-blue) 14%, transparent);
}
.eyebrow {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--c4-data-blue);
    margin: 0 0 10px;
}
.section-title {
    font-size: clamp(1.7rem, 3.6vw, 2.5rem);
    font-weight: 800;
    color: var(--c4-white);
    margin: 0 0 14px;
    line-height: 1.2;
    text-wrap: balance;
}
.section-lede { color: var(--c4-silver); opacity: 0.85; margin: 0 0 34px; }

/* ---------- Services ---------- */
.services-grid { margin-top: 36px; }
.service-card img { width: 100%; height: auto; border-radius: 10px; margin-bottom: 16px; }
.service-card h3 { color: var(--c4-white); font-size: 1.15rem; margin: 0 0 4px; }
.service-sub {
    color: var(--c4-data-blue);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin: 0 0 12px;
}
.service-card ul { margin: 0; padding-left: 18px; color: var(--c4-silver); font-size: 0.92rem; }
.service-card li { margin-bottom: 6px; }

/* ---------- Brands ---------- */
.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
    margin-top: 36px;
}
.brand-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-align: center;
    padding: 1.5rem 1.4rem;
    border-radius: 18px;
    border: 1px solid transparent;
    text-decoration: none;
    transition: transform 0.15s ease, border-color 0.15s ease;
}
.brand-card:hover { transform: translateY(-3px); }
.brand-lockup {
    width: 100%;
    max-width: 320px;
    max-height: 150px;
    height: auto;
    object-fit: contain;
    display: block;
}
.brand-more {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--c4-signal-orange);
}
/* TESSERA palette: black-blue glass, electric/ice blue, orange = active signal */
.brand-card--tessera {
    background: linear-gradient(160deg, #0A1A2E 0%, #050D18 100%);
    border-color: color-mix(in srgb, #8CC8FF 32%, transparent);
}
.brand-card--tessera p:last-child { color: #B7D9F5; }
.brand-card--tessera:hover { border-color: color-mix(in srgb, #8CC8FF 60%, transparent); }
/* MILENKO palette: midnight -> deep navy, data blue, orange = the asserted signal */
.brand-card--milenko {
    background: linear-gradient(160deg, #14213D 0%, #08182B 100%);
    border-color: color-mix(in srgb, #4D94E0 38%, transparent);
}
.brand-card--milenko p:last-child { color: #C7DDF2; }
.brand-card--milenko:hover { border-color: color-mix(in srgb, #4D94E0 65%, transparent); }

/* ---------- About ---------- */
.about-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 56px;
    align-items: center;
}
.about-text p { color: var(--c4-silver); }
.about-points { list-style: none; padding: 0; margin: 22px 0 0; }
.about-points li { margin-bottom: 10px; color: var(--c4-silver); }
.about-mark img { width: 100%; max-width: 340px; height: auto; display: block; margin: 0 auto; }

/* ---------- Contact ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 1.25rem;
    margin-top: 36px;
}
.contact-info h3 { color: var(--c4-white); margin-top: 0; }
.contact-info p { color: var(--c4-silver); }
.contact-note { opacity: 0.75; font-size: 0.9rem; }
.contact-form { display: flex; flex-direction: column; gap: 8px; }
.contact-form label {
    color: var(--c4-silver);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.contact-form input,
.contact-form textarea {
    background: color-mix(in srgb, var(--c4-dark) 70%, transparent);
    border: 1px solid color-mix(in srgb, var(--c4-data-blue) 30%, transparent);
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--c4-white);
    font-family: var(--c4-font);
    font-size: 0.95rem;
    margin-bottom: 10px;
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: 2px solid var(--c4-data-blue);
    outline-offset: 1px;
    border-color: transparent;
}
.contact-form button { margin-top: 6px; align-self: flex-start; }

/* ---------- Footer ---------- */
.footer {
    padding: 54px 0 40px;
    border-top: 1px solid color-mix(in srgb, var(--c4-data-blue) 18%, transparent);
    text-align: center;
}
.footer-logo { height: 52px; width: auto; margin-bottom: 18px; }
.footer-family {
    color: var(--c4-silver);
    letter-spacing: 3px;
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0 0 8px;
}
.footer-tag { color: var(--c4-data-blue); font-size: 0.9rem; margin: 0 0 18px; }
.footer-legal { color: color-mix(in srgb, var(--c4-silver) 55%, transparent); font-size: 0.8rem; margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .nav-toggle { display: block; }
    .nav-menu {
        position: absolute;
        top: 100%; left: 0; right: 0;
        flex-direction: column;
        gap: 0;
        background: color-mix(in srgb, var(--c4-dark) 96%, transparent);
        border-bottom: 1px solid color-mix(in srgb, var(--c4-data-blue) 25%, transparent);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.25s ease;
    }
    .nav-menu.open { max-height: 320px; }
    .nav-menu li { width: 100%; text-align: center; }
    .nav-menu a { display: block; padding: 14px 0; }
    .nav-menu a.nav-cta { border-radius: 0; }
    .about-inner { grid-template-columns: 1fr; gap: 32px; }
    .about-mark img { max-width: 220px; }
    .contact-grid { grid-template-columns: 1fr; }
    .hero { padding: 120px 0 70px; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .btn:hover { transform: none; }
}


/* ---------- Product pages (TESSERA / MILENKO) ---------- */
.product-hero { padding: 130px 0 70px; }
.product-lockup {
    width: min(380px, 80%);
    height: auto;
    display: block;
    margin: 0 auto 20px;
}
.product-lockup--wide { width: min(640px, 92%); }
.product-lede { max-width: 70ch; }
.product-lede p { color: var(--c4-silver); font-size: 1.02rem; }
.cap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.1rem;
    margin-top: 36px;
}
.cap-card { text-align: center; padding: 1.4rem 1.1rem; }
.cap-card img { width: 74px; height: 74px; object-fit: contain; margin-bottom: 10px; }
.cap-card h3 {
    color: var(--c4-white);
    font-size: 0.98rem;
    letter-spacing: 3px;
    margin: 0 0 8px;
}
.cap-card p { color: var(--c4-silver); font-size: 0.88rem; margin: 0; }
.spec-table-wrap { overflow-x: auto; margin-top: 30px; }
.spec-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}
.spec-table th, .spec-table td {
    text-align: left;
    padding: 14px 18px;
    border-bottom: 1px solid color-mix(in srgb, var(--c4-data-blue) 18%, transparent);
    vertical-align: top;
}
.spec-table th {
    color: var(--c4-data-blue);
    font-weight: 700;
    letter-spacing: 1px;
    white-space: nowrap;
    width: 200px;
}
.spec-table td { color: var(--c4-silver); }
.spec-note { color: color-mix(in srgb, var(--c4-silver) 60%, transparent); font-size: 0.85rem; margin-top: 16px; }
.product-cta { text-align: center; }
.product-cta .btn { margin-top: 6px; }

/* MILENKO why-it-matters */
.why-list {
    list-style: none;
    padding: 0;
    margin: 30px 0 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1rem;
}
.why-list li {
    border-left: 3px solid var(--c4-signal-orange);
    padding: 4px 0 4px 16px;
    color: var(--c4-silver);
    font-size: 0.95rem;
}
.why-list strong { color: var(--c4-white); display: block; margin-bottom: 3px; }
.why-oneliner {
    margin: 34px 0 0;
    padding-top: 22px;
    border-top: 1px solid color-mix(in srgb, var(--c4-data-blue) 20%, transparent);
    color: var(--c4-data-blue);
    font-size: 1.08rem;
    font-weight: 600;
    max-width: 62ch;
}