/* =========================
   GLOBAL STYLE
========================= */

:root {
    --primary-color: #0f766e;
    --primary-dark: #115e59;
    --heading-color: #111827;
    --text-color: #475569;
    --light-bg: #f3f8f7;
    --border-color: #e5e7eb;
    --white: #ffffff;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--heading-color);
    font-family: Arial, Helvetica, sans-serif;
    background-color: var(--white);
}

a {
    text-decoration: none;
}

img {
    max-width: 100%;
}

.btn {
    border-radius: 6px;
    font-weight: 600;
}

.btn-primary {
    --bs-btn-bg: var(--primary-color);
    --bs-btn-border-color: var(--primary-color);
    --bs-btn-hover-bg: var(--primary-dark);
    --bs-btn-hover-border-color: var(--primary-dark);
    --bs-btn-active-bg: var(--primary-dark);
    --bs-btn-active-border-color: var(--primary-dark);
}

.btn-outline-dark {
    --bs-btn-hover-bg: var(--heading-color);
    --bs-btn-hover-border-color: var(--heading-color);
}


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

.site-header {
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
}

.site-header .navbar {
    padding: 16px 0;
}

.navbar-brand {
    color: var(--heading-color);
    font-size: 26px;
    letter-spacing: 0;
}

.navbar-brand:hover {
    color: var(--primary-color);
}

.nav-link {
    color: #334155;
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.navbar-toggler {
    border-radius: 6px;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.18);
}


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

.hero-section {
    padding: 90px 0;
    background:
        linear-gradient(120deg, rgba(15, 118, 110, 0.12), rgba(255, 255, 255, 0) 45%),
        var(--light-bg);
}

.hero-section .badge {
    padding: 8px 12px;
    color: var(--primary-dark);
    border-color: rgba(15, 118, 110, 0.22) !important;
    border-radius: 6px;
}

.hero-section h1 {
    max-width: 620px;
    color: var(--heading-color);
    line-height: 1.08;
}

.hero-section .lead {
    max-width: 610px;
    color: var(--text-color) !important;
    line-height: 1.7;
}

.hero-preview {
    display: grid;
    grid-template-columns: 170px 1fr;
    gap: 28px;
    align-items: center;
    min-height: 260px;
    padding: 34px;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 22px 50px rgba(15, 23, 42, 0.1);
}

.qr-box {
    display: grid;
    place-items: center;
    width: 100%;
    aspect-ratio: 1;
    padding: 18px;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.qr-grid {
    width: 100%;
    aspect-ratio: 1;
    background:
        linear-gradient(90deg, var(--heading-color) 12px, transparent 12px) 0 0 / 24px 24px,
        linear-gradient(var(--heading-color) 12px, transparent 12px) 0 0 / 24px 24px,
        var(--white);
}


/* =========================
   COMMON SECTION STYLE
========================= */

.section-padding {
    padding: 84px 0;
}

.section-title {
    margin: 0 0 14px;
    color: var(--heading-color);
    font-size: 38px;
    font-weight: 700;
    line-height: 1.2;
}

.section-subtitle {
    max-width: 720px;
    margin: 0 auto;
    color: var(--text-color);
    font-size: 17px;
    line-height: 1.7;
}


/* =========================
   SOLUTION CARDS
========================= */

.solution-card {
    overflow: hidden;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.solution-card:hover {
    transform: translateY(-6px);
    border-color: rgba(15, 118, 110, 0.25);
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.1);
}

.solution-card img {
    width: 100%;
    height: 230px;
    display: block;
    object-fit: cover;
    background-color: #f8fafc;
}

.solution-card .card-body {
    padding: 24px;
}

.solution-card h3 {
    margin-bottom: 10px;
    color: var(--heading-color);
    font-weight: 700;
}

.solution-card p,
.step-box p {
    margin: 0;
    color: var(--text-color);
    font-size: 15px;
    line-height: 1.65;
}


/* =========================
   PROCESS SECTION
========================= */

#process {
    background-color: #f8fafc !important;
}

.step-box {
    padding: 30px;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    margin-bottom: 18px;
    color: var(--white);
    background-color: var(--primary-color);
    border-radius: 6px;
    font-weight: 700;
}

.step-box h3 {
    margin-bottom: 10px;
    color: var(--heading-color);
    font-weight: 700;
}


/* =========================
   PRICING SECTION
========================= */

.pricing-box {
    padding: 32px;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 16px 34px rgba(15, 23, 42, 0.08);
}

.pricing-box h3 {
    color: var(--heading-color);
}


/* =========================
   CONTACT SECTION
========================= */

.contact-section {
    padding: 56px 0;
    color: var(--white);
    background-color: var(--primary-dark);
}

.contact-section p {
    color: rgba(255, 255, 255, 0.78);
}

.contact-section .btn-light {
    color: var(--primary-dark);
    border-color: var(--white);
}


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

.site-footer {
    padding: 28px 0;
    background-color: var(--white);
    border-top: 1px solid var(--border-color);
}

.site-footer p {
    font-size: 15px;
}


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

@media (max-width: 991px) {
    .site-header .navbar {
        padding: 12px 0;
    }

    .navbar-nav {
        padding-top: 16px;
    }

    .nav-item.ms-lg-3 {
        margin-top: 10px;
    }

    .hero-section,
    .section-padding {
        padding: 64px 0;
    }

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

    .section-title {
        font-size: 32px;
    }
}

@media (max-width: 767px) {
    .hero-preview {
        grid-template-columns: 1fr;
    }

    .qr-box {
        max-width: 190px;
    }

    .contact-section {
        text-align: center;
    }
}

@media (max-width: 575px) {
    .hero-section,
    .section-padding {
        padding: 48px 0;
    }

    .hero-section h1 {
        font-size: 34px;
    }

    .hero-preview {
        padding: 22px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 15px;
    }

    .solution-card img {
        height: 200px;
    }

    .solution-card .card-body,
    .step-box,
    .pricing-box {
        padding: 22px;
    }
}