/* =====================================================
   QR MARK WEBSITE
   GLOBAL
===================================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", sans-serif;
    background: #f7f9fc;
    color: #102a43;
    line-height: 1.6;
}

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

img {
    max-width: 100%;
    display: block;
}


/* =====================================================
   NAVIGATION
===================================================== */

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;

    background: rgba(255, 255, 255, 0.95);

    backdrop-filter: blur(15px);

    border-bottom: 1px solid #e5eaf0;
}

.nav-container {
    max-width: 1200px;

    margin: auto;

    padding: 16px 25px;

    display: flex;

    align-items: center;

    justify-content: space-between;
}


/* LOGO */

.logo {
    display: flex;

    align-items: center;

    gap: 10px;

    font-size: 21px;

    font-weight: 800;
}

.logo-icon {
    width: 42px;
    height: 42px;

    display: flex;

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

    background: #1976d2;

    color: white;

    border-radius: 12px;

    box-shadow: 0 7px 18px rgba(25, 118, 210, 0.25);
}


/* NAV LINKS */

nav {
    display: flex;

    gap: 28px;
}

nav a {
    font-size: 14px;

    font-weight: 600;

    color: #486581;

    transition: 0.3s;
}

nav a:hover {
    color: #1976d2;
}


/* MOBILE MENU */

.menu-btn {
    display: none;

    border: none;

    background: none;

    font-size: 25px;

    color: #102a43;

    cursor: pointer;
}


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

.hero {

    min-height: 720px;

    display: flex;

    align-items: center;

    padding: 90px 20px;

    overflow: hidden;

    background:
        radial-gradient(
            circle at 80% 20%,
            #d8eaff,
            transparent 32%
        ),

        linear-gradient(
            135deg,
            #f8fbff,
            #edf5ff
        );
}

.hero-container {

    max-width: 1200px;

    width: 100%;

    margin: auto;

    display: grid;

    grid-template-columns: 1fr 1fr;

    align-items: center;

    gap: 60px;
}


/* HERO CONTENT */

.badge {

    display: inline-flex;

    align-items: center;

    gap: 8px;

    padding: 9px 15px;

    border-radius: 30px;

    background: #e5f1ff;

    color: #1976d2;

    font-size: 13px;

    font-weight: 700;

    margin-bottom: 20px;
}


.hero h1 {

    font-size: clamp(55px, 7vw, 85px);

    line-height: 1;

    font-weight: 800;

    margin-bottom: 15px;
}

.hero h1 span {

    color: #1976d2;
}


.hero h2 {

    font-size: 25px;

    margin-bottom: 20px;

    color: #243b53;
}


.hero-description {

    max-width: 620px;

    color: #627d98;

    font-size: 17px;

    margin-bottom: 30px;
}


/* BUTTONS */

.hero-buttons {

    display: flex;

    gap: 15px;

    flex-wrap: wrap;
}


.btn {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    gap: 9px;

    padding: 14px 22px;

    border-radius: 12px;

    font-weight: 700;

    transition: 0.3s;
}


.primary-btn {

    background: #1976d2;

    color: white;

    box-shadow:
        0 10px 25px rgba(25, 118, 210, 0.25);
}


.primary-btn:hover {

    transform: translateY(-3px);

    background: #1565c0;
}


.secondary-btn {

    background: white;

    border: 1px solid #ccd8e5;

    color: #102a43;
}


.secondary-btn:hover {

    transform: translateY(-3px);

    border-color: #1976d2;

    color: #1976d2;
}


/* HERO INFO */

.hero-info {

    display: flex;

    gap: 40px;

    margin-top: 45px;
}


.hero-info div {

    display: flex;

    flex-direction: column;
}


.hero-info strong {

    font-size: 18px;
}


.hero-info small {

    color: #829ab1;

    font-size: 13px;
}


/* =====================================================
   PHONE MOCKUP
===================================================== */

.phone-container {

    position: relative;

    display: flex;

    align-items: center;

    justify-content: center;

    min-height: 580px;
}


.phone {

    width: 285px;

    padding: 10px;

    background: #111;

    border-radius: 40px;

    box-shadow:
        0 35px 80px rgba(16, 42, 67, 0.3);

    position: relative;

    z-index: 2;
}


.phone img {

    width: 100%;

    border-radius: 31px;
}


.phone-notch {

    position: absolute;

    top: 10px;

    left: 50%;

    transform: translateX(-50%);

    width: 105px;

    height: 23px;

    background: #111;

    border-radius: 0 0 16px 16px;

    z-index: 5;
}


/* FLOATING CARDS */

.floating-card {

    position: absolute;

    display: flex;

    align-items: center;

    gap: 11px;

    padding: 14px 17px;

    background: white;

    border-radius: 16px;

    box-shadow:
        0 15px 35px rgba(16, 42, 67, 0.15);

    z-index: 4;
}


.floating-card i {

    font-size: 23px;

    color: #2eaf5d;
}


.floating-card strong {

    display: block;

    font-size: 13px;
}


.floating-card small {

    display: block;

    color: #829ab1;

    font-size: 11px;
}


.card-one {

    right: 0;

    top: 28%;
}


.card-two {

    left: 0;

    bottom: 25%;
}


.card-two i {

    color: #1976d2;
}


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

.section {

    padding: 100px 25px;
}


.gray-section {

    background: #f0f4f8;
}


.section-title {

    max-width: 750px;

    margin: 0 auto 60px;

    text-align: center;
}


.section-title > span {

    color: #1976d2;

    font-size: 12px;

    font-weight: 800;

    letter-spacing: 2px;
}


.section-title h2 {

    font-size: 42px;

    line-height: 1.2;

    margin: 12px 0 18px;
}


.section-title h2 span {

    color: #1976d2;
}


.section-title p {

    color: #627d98;

    font-size: 16px;
}


/* =====================================================
   ABOUT
===================================================== */

.about-grid {

    max-width: 1100px;

    margin: auto;

    display: grid;

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

    gap: 25px;
}


.about-card {

    background: white;

    padding: 35px;

    border-radius: 20px;

    box-shadow:
        0 10px 30px rgba(16, 42, 67, 0.06);

    transition: 0.3s;
}


.about-card:hover {

    transform: translateY(-8px);

    box-shadow:
        0 18px 40px rgba(16, 42, 67, 0.1);
}


.icon-box {

    width: 55px;

    height: 55px;

    display: flex;

    align-items: center;

    justify-content: center;

    border-radius: 15px;

    font-size: 23px;

    margin-bottom: 22px;
}


.blue {

    background: #e4f0ff;

    color: #1976d2;
}


.green {

    background: #e5f7ec;

    color: #2eaf5d;
}


.orange {

    background: #fff1dc;

    color: #ef9418;
}


.about-card h3 {

    margin-bottom: 10px;

    font-size: 20px;
}


.about-card p {

    color: #627d98;

    font-size: 14px;
}


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

.features-grid {

    max-width: 1100px;

    margin: auto;

    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 20px;
}


.feature-card {

    background: white;

    padding: 28px;

    border-radius: 18px;

    border: 1px solid #e5eaf0;

    transition: 0.3s;
}


.feature-card:hover {

    transform: translateY(-7px);

    box-shadow:
        0 15px 35px rgba(16, 42, 67, 0.08);
}


.feature-icon {

    width: 50px;

    height: 50px;

    display: flex;

    align-items: center;

    justify-content: center;

    border-radius: 13px;

    background: #e6f0ff;

    color: #1976d2;

    font-size: 21px;

    margin-bottom: 18px;
}


.feature-card h3 {

    font-size: 17px;
}


.feature-card p {

    color: #627d98;

    font-size: 13px;

    margin-top: 8px;
}


/* =====================================================
   HOW IT WORKS
===================================================== */

.steps {

    max-width: 1100px;

    margin: auto;

    display: grid;

    grid-template-columns: repeat(5, 1fr);

    gap: 20px;
}


.step {

    text-align: center;

    position: relative;
}


.step-number {

    color: #1976d2;

    font-weight: 800;

    font-size: 13px;

    margin-bottom: 15px;
}


.step > i {

    width: 62px;

    height: 62px;

    display: flex;

    align-items: center;

    justify-content: center;

    margin: auto;

    background: #e7f0ff;

    color: #1976d2;

    border-radius: 50%;

    font-size: 22px;
}


.step h3 {

    margin-top: 15px;

    font-size: 17px;
}


.step p {

    font-size: 13px;

    color: #627d98;

    margin-top: 7px;
}


/* =====================================================
   SCREENSHOTS
===================================================== */

.screenshots-grid {

    max-width: 1100px;

    margin: auto;

    display: grid;

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

    gap: 25px;
}


.screenshot-card {

    background: white;

    border-radius: 20px;

    overflow: hidden;

    cursor: pointer;

    box-shadow:
        0 10px 30px rgba(16, 42, 67, 0.08);

    transition: 0.3s;
}


.screenshot-card:hover {

    transform: translateY(-8px);

    box-shadow:
        0 20px 40px rgba(16, 42, 67, 0.13);
}


.screenshot-card img {

    width: 100%;

    height: 520px;

    object-fit: cover;

    object-position: top;
}


.screenshot-info {

    padding: 20px;
}


.screenshot-info h3 {

    font-size: 17px;

    margin-bottom: 4px;
}


.screenshot-info p {

    color: #829ab1;

    font-size: 13px;
}


/* =====================================================
   TECHNOLOGY
===================================================== */

.tech-grid {

    max-width: 1000px;

    margin: auto;

    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 20px;
}


.tech-card {

    text-align: center;

    padding: 30px;

    background: white;

    border: 1px solid #e5eaf0;

    border-radius: 18px;

    transition: 0.3s;
}


.tech-card:hover {

    transform: translateY(-6px);

    box-shadow:
        0 15px 30px rgba(16, 42, 67, 0.08);
}


.tech-card i {

    font-size: 38px;

    color: #1976d2;

    margin-bottom: 15px;
}


.kotlin-icon {

    width: 42px;

    height: 42px;

    display: flex;

    align-items: center;

    justify-content: center;

    margin: 0 auto 15px;

    border-radius: 10px;

    background: #1976d2;

    color: white;

    font-size: 24px;

    font-weight: 800;
}


.tech-card h3 {

    font-size: 17px;
}


.tech-card p {

    color: #829ab1;

    font-size: 13px;

    margin-top: 4px;
}


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

.cta-section {

    padding: 90px 25px;

    background:
        linear-gradient(
            135deg,
            #0d2942,
            #145da0
        );

    color: white;

    text-align: center;
}


.cta-container {

    max-width: 700px;

    margin: auto;
}


.cta-icon {

    width: 70px;

    height: 70px;

    display: flex;

    align-items: center;

    justify-content: center;

    margin: auto auto 20px;

    background: rgba(255,255,255,0.12);

    border-radius: 20px;

    font-size: 30px;
}


.cta-container h2 {

    font-size: 45px;

    margin-bottom: 8px;
}


.cta-container p {

    color: #d8e6f2;

    margin-bottom: 28px;
}


.white-btn {

    background: white;

    color: #145da0;
}


.white-btn:hover {

    transform: translateY(-3px);

    box-shadow:
        0 12px 30px rgba(0,0,0,0.2);
}


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

footer {

    background: #071b2d;

    color: white;

    padding: 30px 25px;
}


.footer-container {

    max-width: 1100px;

    margin: auto;

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 20px;
}


.footer-logo {

    font-weight: 700;
}


.footer-logo i {

    color: #65b7ff;

    margin-right: 8px;
}


.footer-container p {

    color: #829ab1;

    font-size: 13px;
}


/* =====================================================
   IMAGE MODAL
===================================================== */

.image-modal {

    position: fixed;

    inset: 0;

    background: rgba(0, 0, 0, 0.9);

    z-index: 5000;

    display: none;

    align-items: center;

    justify-content: center;

    padding: 25px;
}


.image-modal.show {

    display: flex;
}


.image-modal img {

    max-width: 90vw;

    max-height: 90vh;

    border-radius: 15px;

    box-shadow:
        0 20px 60px rgba(0,0,0,0.4);
}


.close-modal {

    position: absolute;

    top: 18px;

    right: 30px;

    color: white;

    font-size: 48px;

    cursor: pointer;

    line-height: 1;
}


/* =====================================================
   RESPONSIVE - TABLET
===================================================== */

@media (max-width: 1000px) {


    nav {

        gap: 16px;
    }


    .features-grid {

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


    .steps {

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

        gap: 40px;
    }


    .tech-grid {

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

}


/* =====================================================
   RESPONSIVE - MOBILE NAV
===================================================== */

@media (max-width: 800px) {


    .nav-container {

        padding: 14px 20px;
    }


    nav {

        display: none;

        position: absolute;

        top: 70px;

        left: 0;

        width: 100%;

        background: white;

        flex-direction: column;

        gap: 0;

        padding: 10px 20px;

        box-shadow:
            0 12px 25px rgba(0,0,0,0.08);
    }


    nav.active {

        display: flex;
    }


    nav a {

        padding: 14px 5px;

        border-bottom: 1px solid #edf1f5;
    }


    .menu-btn {

        display: block;
    }


    .hero {

        padding: 65px 20px;
    }


    .hero-container {

        grid-template-columns: 1fr;

        text-align: center;
    }


    .hero-description {

        margin-left: auto;

        margin-right: auto;
    }


    .hero-buttons {

        justify-content: center;
    }


    .hero-info {

        justify-content: center;
    }


    .phone-container {

        margin-top: 20px;
    }


    .about-grid {

        grid-template-columns: 1fr;
    }


    .screenshots-grid {

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

}


/* =====================================================
   RESPONSIVE - SMALL MOBILE
===================================================== */

@media (max-width: 550px) {


    .hero {

        padding: 55px 18px;
    }


    .hero h1 {

        font-size: 58px;
    }


    .hero h2 {

        font-size: 21px;
    }


    .hero-description {

        font-size: 15px;
    }


    .hero-info {

        gap: 20px;
    }


    .section {

        padding: 70px 18px;
    }


    .section-title h2 {

        font-size: 32px;
    }


    .features-grid,
    .screenshots-grid,
    .tech-grid {

        grid-template-columns: 1fr;
    }


    .steps {

        grid-template-columns: 1fr;

        gap: 35px;
    }


    .screenshot-card img {

        height: auto;

        max-height: 650px;

        object-fit: contain;

        background: #edf2f7;
    }


    .floating-card {

        display: none;
    }


    .phone {

        width: 255px;
    }


    .phone-container {

        min-height: 500px;
    }


    .cta-container h2 {

        font-size: 38px;
    }


    .footer-container {

        flex-direction: column;

        text-align: center;
    }

}