:root {
    --primary: #006699;
    --secondary: #177f90;
    --tertiary: #0059b3;
    --dark: #071923;
    --dark-blue: #062b3d;
    --light: #f4f8fa;
    --white: #ffffff;
}


* {
    box-sizing: border-box;
}


html {
    scroll-behavior: smooth;
}


body {
    font-family: Arial, Helvetica, sans-serif;
    color: #1d2933;
    background: var(--light);
    padding-top: 72px;
}


/* NAVBAR */

.navbar {
    background: rgba(4, 29, 42, 0.98);
    min-height: 72px;
    box-shadow: 0 3px 20px rgba(0, 0, 0, 0.12);
}


.navbar-brand {
    font-size: 1.35rem;
    letter-spacing: .2px;
}


.navbar-brand i {
    color: #39c6d8;
}


.nav-link {
    color: rgba(255, 255, 255, .82) !important;
    font-weight: 500;
    padding: 10px 13px !important;
    transition: .2s;
}


.nav-link:hover,
.nav-link.active {
    color: #ffffff !important;
}


.btn-signup {
    background: var(--secondary);
    border: 0;
    color: #fff;
    border-radius: 8px;
    font-weight: 600;
}


.btn-signup:hover {
    background: var(--tertiary);
    color: #fff;
}


/* HERO */

.hero-section {
    background:
        linear-gradient(
            135deg,
            #052b3d 0%,
            #006699 55%,
            #177f90 100%
        );
    color: #fff;
    padding: 110px 0;
    min-height: 650px;
    display: flex;
    align-items: center;
}


.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 50px;
    padding: 9px 17px;
    font-size: .9rem;
}


.hero-section h1 span {
    color: #7ee6ee;
}


.hero-section p {
    max-width: 650px;
    color: rgba(255,255,255,.82);
}


.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
}


.btn-primary:hover {
    background: var(--tertiary);
    border-color: var(--tertiary);
}


/* HERO QR */

.hero-qr-card {
    background: #fff;
    color: #16232c;
    border-radius: 25px;
    padding: 35px;
    max-width: 350px;
    margin: auto;
    box-shadow: 0 25px 60px rgba(0,0,0,.2);
}


.fake-qr {
    width: 210px;
    height: 210px;
    background: #fff;
    border: 15px solid #111;
    margin: auto;
    position: relative;
    overflow: hidden;
}


.qr-pattern {
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(90deg, #111 12px, transparent 12px),
        linear-gradient(#111 12px, transparent 12px);
    background-size: 27px 27px;
}


/* SECTIONS */

.section-padding {
    padding: 90px 0;
}


.section-heading {
    max-width: 750px;
    margin: auto;
}


.section-heading h2 {
    font-size: 2.4rem;
    font-weight: 700;
    margin-top: 10px;
}


.section-heading p {
    color: #667681;
    font-size: 1.05rem;
}


.section-label {
    color: var(--secondary);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: 2px;
}


/* FEATURE CARDS */

.feature-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    height: 100%;
    border: 1px solid #e5edf1;
    transition: .25s;
}


.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,.08);
}


.feature-icon {
    width: 55px;
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #e7f6f8;
    color: var(--secondary);
    border-radius: 14px;
    font-size: 1.5rem;
    margin-bottom: 20px;
}


.feature-card p {
    color: #697780;
    line-height: 1.7;
}


/* TYPES */

.types-section {
    background: #eef5f7;
}


.type-card {
    display: block;
    background: #fff;
    padding: 28px;
    border-radius: 15px;
    color: #16232c;
    text-decoration: none;
    height: 100%;
    border: 1px solid #e1eaee;
    transition: .25s;
}


.type-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,.08);
    color: #16232c;
}


.type-card > i {
    font-size: 2rem;
    color: var(--primary);
}


.type-card h5 {
    margin-top: 20px;
    font-weight: 700;
}


.type-card p {
    color: #72808a;
    min-height: 48px;
}


.type-card span {
    color: var(--secondary);
    font-weight: 600;
}


/* CTA */

.cta-section {
    background: var(--dark-blue);
    color: #fff;
    padding: 80px 20px;
}


.cta-section p {
    color: rgba(255,255,255,.7);
}


/* GENERATOR */

.generator-section {
    min-height: calc(100vh - 150px);
    padding: 70px 0;
    display: flex;
    align-items: center;
}


.generator-card {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(10, 40, 55, .08);
    border: 1px solid #e3ebef;
}


.generator-icon {
    width: 70px;
    height: 70px;
    background: #e8f7f9;
    color: var(--secondary);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: auto auto 18px;
    border-radius: 18px;
    font-size: 2rem;
}


.generator-card h1 {
    font-weight: 700;
}


.form-label {
    font-weight: 600;
}


.form-control,
.form-select {
    border-radius: 9px;
    border-color: #d8e2e7;
    padding: 12px 14px;
}


.form-control:focus,
.form-select:focus {
    border-color: var(--secondary);
    box-shadow: 0 0 0 .2rem rgba(23,127,144,.12);
}


/* QR RESULT */

.qr-result {
    background: #f6f9fa;
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    height: 100%;
}


.qr-box {
    background: #fff;
    min-height: 270px;
    border-radius: 12px;
    margin: 15px 0;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px;
}


.qr-box img {
    max-width: 100%;
    height: auto;
}


/* FOOTER */

footer {
    background: #061b27;
    color: rgba(255,255,255,.7);
    padding: 35px 0;
}


footer h5 {
    color: #fff;
}


/* MOBILE */

@media (max-width: 991px) {

    .navbar-nav {
        padding: 15px 0;
    }

    .nav-item {
        margin-bottom: 3px;
    }

    .btn-signup {
        display: inline-block;
        margin-top: 8px;
    }

}


@media (max-width: 767px) {

    body {
        padding-top: 65px;
    }

    .hero-section {
        padding: 75px 0;
        text-align: center;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }

    .section-padding {
        padding: 65px 0;
    }

    .section-heading h2 {
        font-size: 2rem;
    }

    .generator-section {
        padding: 35px 12px;
    }

    .generator-card {
        padding: 25px 18px;
    }

}


@media (max-width: 400px) {

    .hero-section h1 {
        font-size: 2.15rem;
    }

    .generator-card {
        padding: 20px 14px;
    }

    .qr-box {
        min-height: 230px;
    }

}