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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", sans-serif;
    color: #111;
    background: #fff;
}

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


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

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid #eee;
}

.nav-container {
    max-width: 1200px;
    margin: auto;
    height: 76px;

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

    padding: 0 25px;
}

.logo {
    font-size: 25px;
    font-weight: 800;
    letter-spacing: -1.5px;
}

.logo span {
    color: #0071e3;
}

.nav-menu {
    display: flex;
    gap: 35px;
}

.nav-menu a {
    font-size: 14px;
    color: #555;
    transition: .3s;
}

.nav-menu a:hover {
    color: #0071e3;
}

.nav-button {
    background: #111;
    color: white;
    padding: 12px 20px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
}

.mobile-menu {
    display: none;
    border: 0;
    background: none;
    font-size: 24px;
}


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

.hero {
    min-height: 720px;
    max-width: 1200px;
    margin: auto;

    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;

    padding: 70px 25px;
}

.hero-badge {
    display: inline-block;

    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;

    color: #0071e3;
    background: #eef6ff;

    padding: 9px 15px;
    border-radius: 30px;

    margin-bottom: 25px;
}

.hero h1 {
    font-size: clamp(45px, 6vw, 75px);
    line-height: 1.02;
    letter-spacing: -4px;
}

.hero h1 span {
    color: #0071e3;
}

.hero-content > p {
    max-width: 540px;

    color: #666;
    font-size: 17px;
    line-height: 1.7;

    margin: 30px 0;
}

.hero-buttons {
    display: flex;
    gap: 12px;
}

.btn-primary {
    background: #111;
    color: white;

    padding: 15px 25px;
    border-radius: 30px;

    font-weight: 600;
    font-size: 14px;
}

.btn-secondary {
    padding: 15px 25px;

    border: 1px solid #ddd;
    border-radius: 30px;

    font-weight: 600;
    font-size: 14px;
}

.hero-info {
    display: flex;
    gap: 35px;
    margin-top: 60px;
}

.hero-info div {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.hero-info strong {
    font-size: 20px;
}

.hero-info span {
    color: #888;
    font-size: 11px;
}


/* PHONE HERO */

.hero-product {
    height: 560px;

    position: relative;

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

.product-glow {
    position: absolute;

    width: 450px;
    height: 450px;

    border-radius: 50%;

    background:
        radial-gradient(circle,
        #dceeff 0%,
        #f4f8fc 45%,
        transparent 70%);
}

.phone {
    position: relative;
    z-index: 2;

    width: 260px;
    height: 510px;

    background: #111;

    border: 8px solid #222;
    border-radius: 45px;

    transform: rotate(-8deg);

    box-shadow:
        30px 40px 80px rgba(0,0,0,.2);
}

.phone-screen {
    width: 100%;
    height: 100%;

    border-radius: 35px;

    overflow: hidden;

    background:
        radial-gradient(circle at 30% 25%,
        #70b8ff,
        #1a4d91 35%,
        #070b16 75%);
}

.screen-circle {
    position: absolute;

    width: 200px;
    height: 200px;

    border-radius: 50%;

    background: rgba(255,255,255,.1);

    filter: blur(20px);

    bottom: 80px;
    left: 20px;
}

.phone-camera {
    position: absolute;

    width: 75px;
    height: 75px;

    background: #111;

    border-radius: 20px;

    top: 20px;
    left: 20px;

    z-index: 5;
}


/* ================= GENERAL ================= */

.category-section,
.products-section,
.features {
    max-width: 1200px;
    margin: auto;
    padding: 100px 25px;
}

.section-title span,
.section-heading span,
.promo-content > span,
.cta span {
    color: #0071e3;

    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
}

.section-title h2,
.section-heading h2 {
    margin-top: 10px;

    font-size: 38px;
    letter-spacing: -1.5px;
}


/* ================= CATEGORY ================= */

.categories {
    display: grid;
    grid-template-columns: repeat(4,1fr);

    gap: 18px;

    margin-top: 45px;
}

.category-card {
    padding: 30px;

    border: 1px solid #eee;
    border-radius: 20px;

    transition: .3s;
}

.category-card:hover {
    transform: translateY(-7px);

    box-shadow:
        0 20px 50px rgba(0,0,0,.08);
}

.category-icon {
    font-size: 35px;
    margin-bottom: 25px;
}

.category-card h3 {
    font-size: 17px;
}

.category-card p {
    color: #888;
    font-size: 12px;
    margin-top: 8px;
}


/* ================= PRODUCTS ================= */

.products-section {
    max-width: 1200px;
}

.section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
}

.view-all {
    color: #0071e3;
    font-size: 13px;
    font-weight: 600;
}

.products {
    display: grid;
    grid-template-columns: repeat(3,1fr);

    gap: 20px;

    margin-top: 45px;
}

.product-card {
    overflow: hidden;

    border: 1px solid #eee;
    border-radius: 25px;

    background: #fff;
}

.product-image {
    height: 330px;

    background: #f6f6f6;

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

    position: relative;
}

.product-label {
    position: absolute;

    margin: 18px;

    background: #111;
    color: white;

    padding: 7px 12px;

    border-radius: 20px;

    font-size: 9px;
    font-weight: 700;

    z-index: 5;
}

.mini-phone {
    width: 150px;
    height: 270px;

    border-radius: 28px;

    background:
        linear-gradient(
            140deg,
            #111,
            #555
        );

    box-shadow: 20px 25px 50px rgba(0,0,0,.2);

    transform: rotate(-8deg);
}

.laptop {
    width: 250px;
    height: 160px;

    border-radius: 12px;

    background: #aaa;

    box-shadow: 0 25px 40px rgba(0,0,0,.2);

    transform: perspective(400px) rotateX(5deg);
}

.watch {
    width: 120px;
    height: 145px;

    border-radius: 32px;

    background: #111;

    box-shadow: 20px 25px 50px rgba(0,0,0,.2);
}

.product-info {
    padding: 25px;
}

.product-info small {
    color: #999;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1px;
}

.product-info h3 {
    font-size: 21px;
    margin: 8px 0;
}

.product-info p {
    color: #888;
    font-size: 12px;
    line-height: 1.6;
}

.price {
    font-weight: 800;
    font-size: 18px;

    margin: 20px 0;
}

.product-info button {
    width: 100%;

    padding: 13px;

    border: 0;
    border-radius: 30px;

    background: #111;
    color: white;

    font-weight: 600;

    cursor: pointer;
}


/* ================= PROMO ================= */

.promo-section {
    max-width: 1150px;
    min-height: 430px;

    margin: 30px auto 100px;

    border-radius: 35px;

    padding: 70px;

    background:
        linear-gradient(
            120deg,
            #080808,
            #202020
        );

    color: white;

    position: relative;
    overflow: hidden;
}

.promo-content {
    position: relative;
    z-index: 2;
}

.promo-content span {
    color: #55aaff;
}

.promo-content h2 {
    font-size: 55px;
    line-height: 1.05;

    letter-spacing: -3px;

    margin: 20px 0;
}

.promo-content p {
    color: #aaa;
    margin-bottom: 30px;
}

.promo-button {
    display: inline-block;

    background: white;
    color: #111;

    padding: 14px 25px;

    border-radius: 30px;

    font-size: 13px;
    font-weight: 700;
}

.promo-decoration {
    position: absolute;

    right: -50px;
    bottom: -130px;

    font-size: 300px;

    font-weight: 800;

    color: rgba(255,255,255,.03);
}


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

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);

    gap: 25px;

    margin-top: 45px;
}

.feature {
    padding: 25px;
}

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

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

    background: #eef6ff;
    color: #0071e3;

    border-radius: 50%;

    margin-bottom: 20px;
}

.feature h3 {
    font-size: 16px;
}

.feature p {
    color: #888;
    font-size: 12px;
    line-height: 1.7;
    margin-top: 10px;
}


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

.cta {
    max-width: 1200px;

    margin: auto;

    padding: 80px 25px;

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

    border-top: 1px solid #eee;
}

.cta h2 {
    font-size: 45px;
    line-height: 1.05;

    letter-spacing: -2px;

    margin-top: 15px;
}

.cta-button {
    background: #0071e3;
    color: white;

    padding: 16px 28px;

    border-radius: 30px;

    font-weight: 700;
    font-size: 13px;
}


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

footer {
    background: #f7f7f7;
    padding: 70px 25px 25px;
}

.footer-main {
    max-width: 1150px;
    margin: auto;

    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;

    gap: 50px;
}

.footer-brand p {
    max-width: 280px;

    color: #888;

    font-size: 12px;
    line-height: 1.7;

    margin-top: 15px;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 13px;
}

.footer-column h4 {
    font-size: 13px;
    margin-bottom: 5px;
}

.footer-column a {
    color: #777;
    font-size: 12px;
}

.footer-bottom {
    max-width: 1150px;

    margin: 60px auto 0;
    padding-top: 20px;

    border-top: 1px solid #ddd;

    display: flex;
    justify-content: space-between;

    color: #999;
    font-size: 10px;
}


/* ================= MOBILE ================= */

@media(max-width: 800px) {

    .nav-menu,
    .nav-button {
        display: none;
    }

    .mobile-menu {
        display: block;
    }

    .hero {
        grid-template-columns: 1fr;
        padding-top: 60px;
    }

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

    .hero-product {
        height: 450px;
    }

    .categories {
        grid-template-columns: repeat(2,1fr);
    }

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

    .feature-grid {
        grid-template-columns: repeat(2,1fr);
    }

    .promo-section {
        margin: 20px;
        padding: 45px 30px;
    }

    .promo-content h2 {
        font-size: 40px;
    }

    .cta {
        flex-direction: column;
        align-items: flex-start;
        gap: 30px;
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
    }
}

@media(max-width: 500px) {

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

    .hero-info {
        gap: 15px;
    }

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

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

    .footer-main {
        grid-template-columns: 1fr;
    }

}