/* ===================================================== */
/* SITE COLOR PALETTE */
/* ===================================================== */

:root {

        /* backgrounds */
        --bg-main: #0b0f14;
        --bg-deep: #08131c;
        --bg-panel: #111823;
        --bg-card: #141c27;

        /* borders */
        --border-subtle: #243142;
        --border-card: #273243;
        --border-light: #e1e6ed;

        /* text */
        --text-main: #ffffff;
        --text-primary: #e6eef8;
        --text-secondary: #c7d0da;
        --text-tertiary: #b9c6d6;
        --text-muted: #9aa7b5;

        /* light-mode text (header/nav) */
        --text-dark: #1b2a3a;

        /* brand */
        --accent: #2a7de1;
        --accent-soft: #7fc8ff;

}

/* ===================================================== */
/* GENERAL PAGE STYLING */
/* ===================================================== */

body {
        font-family: Arial, Helvetica, sans-serif;
        margin: 0;
        padding-top: 0;
        background: var(--bg-main);
        color: var(--text-primary);
        line-height: 1.6;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
}

main {
        flex: 1;
}


/* ===================================================== */
/* MAIN SITE HEADER (homepage etc) */
/* ===================================================== */

header {
        background: white;
        padding: 40px 10%;
        text-align: center;
        border-bottom: 1px solid #e5e5e5;
}

.logo {
        max-width: 530px;
        margin-bottom: 10px;
}

nav {
        display: flex;
        justify-content: center;
        gap: 40px;
}

nav a {
        color: var(--text-dark);
        text-decoration: none;
        font-weight: 600;
}

nav a:hover {
        color: var(--accent);
}


/* ===================================================== */
/* DROPDOWN */
/* ===================================================== */

.dropdown {
        position: relative;
}

.dropdown-content {
        position: absolute;
        color: var(--text-primary);
        min-width: 180px;
        box-shadow: 0 8px 16px rgba(0, 0, 0, .4);

        opacity: 0;
        transform: translateY(-8px);
        transition: .15s;

        pointer-events: none;
}

.dropdown-content a {
        color: var(--text-primary);
        padding: 12px 16px;
        display: block;
}

.dropdown-content a:hover {
        background: #1d2633;
        color: var(--accent-soft);
}

.dropdown:hover .dropdown-content {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
        background: #151c26;
        border: 1px solid var(--border-subtle);
}


/* ===================================================== */
/* HERO */
/* ===================================================== */

.hero {
        position: relative;
        width: 100%;
        height: 520px;

        display: flex;
        align-items: center;
        justify-content: center;

        text-align: center;
        background: #0b0f14;
        color: white;

        overflow: hidden;
        margin-bottom: 80px;
}

.hero-content {
        position: relative;
        z-index: 2;
        max-width: 700px;
}

.hero h1 {
        font-size: 42px;
        margin-bottom: 20px;
}

.hero p {
        font-size: 20px;
        color: var(--text-secondary);
}

#vision-bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
}


/* ===================================================== */
/* TECH PRODUCT PAGES */
/* ===================================================== */

.tech-layout {
        background: var(--bg-main);
        color: var(--text-primary);
}

.tech-layout .hero {
        display: none;
}


/* ===================================================== */
/* PRODUCT HEADER */
/* ===================================================== */

.tech-layout .site-header {
        display: grid;
        grid-template-columns: auto 1fr auto;
        grid-template-rows: auto auto;

        align-items: start;

        padding: 50px 36px 10px 36px;

        background: white;

        position: sticky;
        top: 0;
        z-index: 1000;

        box-shadow: 0 2px 6px rgba(0, 0, 0, .06);

        border-bottom: none;
}



/* TE icon */
.tech-layout .header-logo {
        height: 140px;
        width: auto;
        align-self: start;
        margin-top: -25px;
}



/* product banner */
.tech-layout .header-product {
        grid-column: 2;
        grid-row: 1;

        display: flex;
        justify-content: center;
        align-items: flex-start;

        margin-top: 0px;
        margin-bottom: 60px;
}

.tech-layout .header-product img {
        height: 250px;
        width: auto;

        filter: drop-shadow(0 14px 20px rgba(0, 0, 0, .18));
}



/* nav */
.tech-layout .header-nav {
        grid-column: 1 / span 3;
        grid-row: 2;

        display: flex;
        justify-content: center;
        gap: 42px;

        margin-top: 2px;

        font-size: 16px;
}

.tech-layout .header-nav a {
        color: var(--text-dark);
        text-decoration: none;
        font-weight: 600;
        white-space: nowrap;
}

.tech-layout .header-nav a:hover {
        color: var(--accent);
}



/* user icons */
.tech-layout .header-actions {
        grid-column: 3;
        grid-row: 1;

        display: flex;
        gap: 20px;

        align-items: flex-start;
        margin-top: 0px;
}

.action-icon {
        height: 26px;
        width: auto;
        opacity: .85;
        cursor: pointer;
}

.action-icon:hover {
        opacity: 1;
}




/* ===================================================== */
/* PRODUCT CONTENT */
/* ===================================================== */

.product-content {
        width: 1100px;
        margin: 0 auto;

        background: transparent;
        color: #d6dee8;

        padding: 1px 80px 50px 60px;
}

.product-content h2 {
        margin-top: 57px;
        margin-bottom: 18px;
        color: #ffffff;
}

.tech-layout .feature p {
        color: var(--text-tertiary);
}

.two-column {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        margin-top: 40px;
        align-items: center;
}

.two-column img {
        max-width: 100%;
}

.overview-tagline {
        font-size: 20px;
        font-weight: 600;
        color: var(--text-secondary);
        margin-bottom: 10px;
}


/* ===================================================== */
/* KEY CAPABILITIES PLAQUES */
/* ===================================================== */
.features {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 30px;
        margin-top: 7px;
}

.feature {
        background: var(--bg-panel);
        padding: 26px 28px;
        border-radius: 10px;
        border: 1px solid var(--border-subtle);
        max-width: 420px;
        transition: transform .18s ease, box-shadow .18s ease;
}

.feature:hover {
        transform: translateY(-4px);
        box-shadow:
                0 12px 24px rgba(0, 0, 0, .45),
                0 0 10px rgba(127, 200, 255, .18);
}

.feature h3 {
        color: var(--accent-soft);
        margin-top: 0;
        margin-bottom: 10px;
}

.feature p {
        color: var(--text-secondary);
}


/* ===================================================== */
/* PRODUCT VARIANTS */
/* ===================================================== */

.product-variants {
        width: 75%;
        margin: 35px auto;
        text-align: center;
}

.product-variants h2 {
        margin-bottom: 7px;
        color: var(--text-main);
}

.variant-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 40px;
        margin-top: 12px;
}

.variant-card {
        background: var(--bg-card);
        border: 1px solid var(--border-card);
        border-radius: 10px;
        padding: 35px;

        color: var(--text-secondary);
}

.variant-card h3 {
        font-size: 22px;
        font-weight: 700;

        color: var(--accent-soft);

        margin-bottom: 12px;
        border-bottom: 2px solid var(--accent);
        padding-bottom: 6px;
}

.variant-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 24px rgba(0, 0, 0, .45);
}

.price {
        font-size: 26px;
        font-weight: 700;
        margin: 20px 0;
        color: var(--text-main);
}

.add-cart {
        background: var(--accent);
        border: none;
        color: white;
        padding: 12px 22px;
        border-radius: 6px;
        cursor: pointer;
}

.add-cart:hover {
        background: #1f66be;
}


/* ===================================================== */
/* FOOTER */
/* ===================================================== */

footer {
        text-align: center;
        padding: 8px 0;
        font-size: 12px;
        background: var(--bg-deep);
        color: var(--text-muted);
        margin-top: 80px;
}