* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #06131d;
    --bg-secondary: #091d2a;
    --card: #102a3a;
    --border: rgba(255,255,255,.10);
    --text: #f4f8fb;
    --muted: #9db3c2;
    --cyan: #08b8df;
    --cyan-light: #5edcf5;
}

html {
    scroll-behavior: smooth;
}

body {
    background:
        radial-gradient(
            circle at 75% 15%,
            rgba(0, 174, 220, .12),
            transparent 30%
        ),
        var(--bg);

    color: var(--text);

    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    line-height: 1.6;
}


/* =========================
   NAVBAR
========================= */

.navbar {
    height: 82px;

    border-bottom: 1px solid var(--border);

    background: rgba(5, 16, 25, .85);

    backdrop-filter: blur(18px);

    position: relative;
    z-index: 10;
}

.nav-container {
    max-width: 1180px;

    height: 100%;

    margin: auto;

    padding: 0 25px;

    display: flex;

    align-items: center;

    justify-content: space-between;
}

.brand {
    display: flex;

    align-items: center;

    gap: 12px;

    text-decoration: none;

    color: white;
}

.brand img {
    width: 45px;
    height: 45px;

    object-fit: contain;

    border-radius: 8px;
}

.brand-text {
    display: flex;
    flex-direction: column;

    line-height: 1.1;
}

.brand-text strong {
    font-size: 15px;
    letter-spacing: .5px;
}

.brand-text span {
    font-size: 11px;

    color: var(--cyan);

    letter-spacing: 1.5px;
}


nav {
    display: flex;

    align-items: center;

    gap: 28px;
}

nav a {
    color: #b8c8d2;

    text-decoration: none;

    font-size: 14px;

    transition: .25s;
}

nav a:hover {
    color: white;
}

.login-btn {
    border: 1px solid rgba(8,184,223,.5);

    padding: 9px 18px;

    border-radius: 25px;
}


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

.hero {
    max-width: 1180px;

    min-height: 650px;

    margin: auto;

    padding: 90px 25px;

    display: grid;

    grid-template-columns: 1.1fr .9fr;

    align-items: center;

    gap: 70px;
}

.badge {
    display: flex;

    align-items: center;

    gap: 10px;

    color: var(--cyan);

    font-size: 12px;

    font-weight: 700;

    letter-spacing: 1.5px;

    margin-bottom: 25px;
}

.badge span {
    width: 28px;
    height: 2px;

    background: var(--cyan);
}

.hero h1 {
    font-size: clamp(45px, 6vw, 72px);

    line-height: .98;

    letter-spacing: -3px;

    max-width: 700px;
}

.hero h1 strong {
    display: block;

    background:
        linear-gradient(
            90deg,
            white,
            var(--cyan-light)
        );

    -webkit-background-clip: text;

    color: transparent;
}

.hero-description {
    max-width: 600px;

    margin-top: 28px;

    color: var(--muted);

    font-size: 17px;
}


/* =========================
   BUTTONS
========================= */

.hero-buttons {
    display: flex;

    gap: 14px;

    margin-top: 35px;

    flex-wrap: wrap;
}

.btn {
    display: inline-flex;

    align-items: center;

    gap: 10px;

    padding: 14px 24px;

    border-radius: 30px;

    text-decoration: none;

    font-weight: 700;

    transition: .25s;
}

.btn-primary {
    background: var(--cyan);

    color: #04121a;
}

.btn-primary:hover {
    transform: translateY(-2px);

    box-shadow:
        0 10px 30px rgba(8,184,223,.25);
}

.btn-secondary {
    border: 1px solid var(--border);

    color: white;
}

.btn-secondary:hover {
    border-color: var(--cyan);

    color: var(--cyan);
}


/* =========================
   NFC CARD
========================= */

.card-container {
    position: relative;

    display: flex;

    justify-content: center;

    align-items: center;
}

.glow {
    position: absolute;

    width: 330px;
    height: 330px;

    background: var(--cyan);

    filter: blur(120px);

    opacity: .13;
}

.nfc-card {
    width: 350px;

    height: 220px;

    position: relative;

    padding: 25px;

    border-radius: 20px;

    background:
        linear-gradient(
            135deg,
            #122f40,
            #071923
        );

    border: 1px solid rgba(255,255,255,.15);

    box-shadow:
        0 35px 70px rgba(0,0,0,.4);

    transform: perspective(900px) rotateY(-8deg) rotateX(4deg);

    overflow: hidden;
}

.nfc-card::before {
    content: "";

    position: absolute;

    width: 200px;
    height: 200px;

    border-radius: 50%;

    border: 1px solid rgba(8,184,223,.25);

    right: -70px;
    bottom: -80px;
}

.card-top {
    display: flex;

    justify-content: space-between;

    align-items: center;
}

.card-top img {
    width: 55px;
    height: 55px;

    object-fit: contain;

    border-radius: 8px;
}

.card-top span {
    color: var(--cyan);

    font-size: 11px;

    font-weight: 700;

    letter-spacing: 2px;
}

.card-middle {
    margin-top: 25px;
}

.nfc-icon {
    color: var(--cyan);

    font-size: 25px;
}

.card-middle h3 {
    font-size: 23px;
}

.card-middle p {
    color: var(--muted);

    font-size: 12px;
}

.card-bottom {
    position: absolute;

    bottom: 20px;
    left: 25px;
    right: 25px;

    display: flex;

    justify-content: space-between;

    color: #6f8a98;

    font-size: 9px;

    letter-spacing: 1.5px;
}


/* =========================
   FEATURES
========================= */

.features {
    max-width: 1180px;

    margin: auto;

    padding: 90px 25px;
}

.section-heading {
    max-width: 650px;

    margin-bottom: 50px;
}

.section-heading > span {
    color: var(--cyan);

    font-size: 12px;

    font-weight: 700;

    letter-spacing: 2px;
}

.section-heading h2 {
    font-size: 40px;

    margin-top: 10px;

    letter-spacing: -1px;
}

.section-heading p {
    color: var(--muted);

    margin-top: 15px;
}

.features-grid {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 20px;
}

.feature {
    padding: 30px;

    border: 1px solid var(--border);

    border-radius: 18px;

    background: rgba(255,255,255,.025);

    transition: .3s;
}

.feature:hover {
    transform: translateY(-5px);

    border-color: rgba(8,184,223,.35);
}

.feature-icon {
    width: 48px;
    height: 48px;

    display: flex;

    align-items: center;

    justify-content: center;

    border-radius: 12px;

    background: rgba(8,184,223,.1);

    color: var(--cyan);

    font-weight: 800;

    margin-bottom: 20px;
}

.feature h3 {
    font-size: 20px;

    margin-bottom: 10px;
}

.feature p {
    color: var(--muted);

    font-size: 14px;
}


/* =========================
   CTA
========================= */

.cta {
    max-width: 1130px;

    margin: 30px auto 100px;

    padding: 50px;

    border-radius: 24px;

    border: 1px solid rgba(8,184,223,.2);

    background:
        linear-gradient(
            110deg,
            rgba(8,184,223,.10),
            rgba(255,255,255,.025)
        );

    display: flex;

    justify-content: space-between;

    align-items: center;

    gap: 30px;
}

.cta span {
    color: var(--cyan);

    font-size: 11px;

    letter-spacing: 2px;

    font-weight: 700;
}

.cta h2 {
    font-size: 32px;

    margin-top: 5px;
}

.cta p {
    color: var(--muted);
}


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

footer {
    border-top: 1px solid var(--border);

    background: #040d14;
}

.footer-content {
    max-width: 1180px;

    margin: auto;

    padding: 35px 25px;

    display: flex;

    justify-content: space-between;

    align-items: center;
}

.footer-brand {
    display: flex;

    align-items: center;

    gap: 12px;
}

.footer-brand img {
    width: 40px;
    height: 40px;

    object-fit: contain;

    border-radius: 7px;
}

.footer-brand div {
    display: flex;

    flex-direction: column;
}

.footer-brand strong {
    font-size: 13px;
}

.footer-brand span {
    color: var(--cyan);

    font-size: 11px;
}

.footer-links {
    display: flex;

    gap: 25px;
}

.footer-links a {
    color: var(--muted);

    text-decoration: none;

    font-size: 13px;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    max-width: 1180px;

    margin: auto;

    padding: 20px 25px;

    border-top: 1px solid var(--border);

    display: flex;

    justify-content: space-between;

    gap: 20px;

    color: #657984;

    font-size: 11px;
}

.footer-bottom a {
    color: #8ba8b5;

    text-decoration: none;
}

.footer-bottom a:hover {
    color: var(--cyan);
}


/* =========================
   RESPONSIVE
========================= */

@media (max-width: 800px) {

    nav a:first-child {
        display: none;
    }

    .hero {
        grid-template-columns: 1fr;

        padding-top: 65px;

        gap: 50px;
    }

    .hero h1 {
        font-size: 48px;
    }

    .card-container {
        margin-bottom: 30px;
    }

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

    .cta {
        margin-left: 20px;
        margin-right: 20px;

        flex-direction: column;

        align-items: flex-start;
    }

    .footer-content,
    .footer-bottom {
        flex-direction: column;

        align-items: flex-start;
    }
}