:root {
    --brand-green: #1db954;
    --brand-green-dark: #179443;
    --brand-green-light: #38e27d;
    --brand-green-bg: #eafaf1;
    --brand-bg-light: #f7fafd;
    --brand-bg-mid: #f0f3fa;
    --brand-text: #20243a;
    --brand-muted: #8390a7;
    --nav-gap: 1.1rem;
    --utility-bar-h: 28px;
}

@media (max-width:700px) {
    :root {
        --utility-bar-h: 22px;
    }
}

body {
    font: 17px/1.7 'Poppins', Arial, sans-serif;
    color: var(--brand-text);
    background: #fff;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 28px;
}

@media(max-width:900px) {
    .container {
        padding: 0 10px;
    }
}

.section {
    padding: 76px 0 44px;
}

@media(max-width:1050px) {
    .section {
        padding: 50px 0 30px;
    }
}

.section-title {
    font: 700 2.1rem/1 var(--brand-text);
    margin-bottom: 44px;
    text-align: center;
    letter-spacing: -1px;
}

@media(max-width:700px) {
    .section-title {
        font-size: 1.36rem;
    }
}

.section-lead {
    font-size: 1.15rem;
    color: var(--brand-muted);
    text-align: center;
    margin-bottom: 16px;
    opacity: .92;
}

/* ---------- KEYFRAMES ---------- */
@keyframes fadein {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

.section,
.card,
.adv-card,
.hero-section,
.process-card {
    animation: fadein .74s;
}

/* ---------- DARK-MODE / SCROLLED STATE ---------- */
.utility-bar.scrolled,
.navbar.scrolled {
    background: #20243a !important;
    color: #fff !important;
    box-shadow: 0 4px 14px rgba(0, 0, 0, .1);
}

.utility-bar.scrolled a,
.utility-bar.scrolled span,
.utility-bar.scrolled i,
.navbar.scrolled .brand,
.navbar.scrolled .nav-link {
    color: #fff !important;
}

.navbar.scrolled .nav-link:hover,
.utility-bar.scrolled .utility-bar-link:hover,
.navbar.scrolled .nav-link.active,
.navbar.scrolled .nav-menu .active {
    color: var(--brand-green) !important;
}

.navbar.scrolled .nav-menu a::before {
    background: var(--brand-green) !important;
}

.navbar.scrolled .dropdown,
.navbar.scrolled .dropdown-menu {
    background: #fff;
}

.navbar.scrolled .dropdown-item,
.navbar.scrolled .dropdown-menu a {
    color: var(--brand-text) !important;
}

.navbar.scrolled .dropdown-item:hover,
.navbar.scrolled .dropdown-menu a:hover {
    background: #f1f5fb;
    color: var(--brand-green) !important;
}

/* ---------- SCROLL-TO-TOP BUTTON ---------- */
.scroll-to-top {
    position: fixed;
    bottom: 80px;
    right: 30px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    background: rgba(0, 0, 0, 0.7) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    color: white !important;
    border-radius: 4px !important;
    padding: 12px 16px !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
    z-index: 1000 !important;
    min-width: 100px !important;
    text-align: center !important;
    backdrop-filter: blur(10px) !important;
}

.scroll-to-top:hover {
    background: rgba(0, 0, 0, 0.8) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4) !important;
    color: white !important;
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) !important;
}

.scroll-to-top:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5) !important;
    outline-offset: 2px !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), 0 0 0 2px rgba(255, 255, 255, 0.5) !important;
}

@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 60px;
        right: 20px;
        padding: 10px 14px !important;
        font-size: 0.8rem !important;
        min-width: 90px !important;
    }
}

/* ---------- CARDS (advantage / service / process) ---------- */
.adv-card,
.card,
.process-card {
    border-radius: 16px;
    transition: box-shadow .18s, transform .15s;
    animation: fadein .74s;
}

.adv-card {
    background: var(--brand-bg-light);
    padding: 35px 20px;
    box-shadow: 0 2px 14px rgba(52, 112, 236, .09);
}

.adv-card:hover {
    box-shadow: 0 9px 32px rgba(52, 112, 236, .15);
    transform: translateY(-6px) scale(1.027);
}

.card {
    background: #fff;
    box-shadow: 0 2px 16px rgba(52, 112, 236, .09);
}

.card:hover {
    box-shadow: 0 13px 40px rgba(52, 112, 236, .16);
    transform: translateY(-7px) scale(1.04);
}

.card .btn {
    margin-top: 6px;
}

.process-card {
    background: var(--brand-bg-mid);
    padding: 32px 10px 28px;
    min-height: 210px;
    border-radius: 14px;
    box-shadow: 0 1px 7px rgba(52, 112, 236, .06);
}

.process-card:hover {
    box-shadow: 0 7px 24px rgba(52, 112, 236, .12);
    transform: scale(1.04);
}

.text-brand {
    color: var(--brand-green) !important;
}

.link-brand {
    color: var(--brand-green) !important;
    text-decoration: none;
}

.link-brand:hover {
    color: var(--brand-green-dark) !important;
    text-decoration: underline;
}

.btn-brand {
    --bs-btn-color: #fff;
    --bs-btn-bg: var(--brand-green);
    --bs-btn-border-color: var(--brand-green);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--brand-green-dark);
    --bs-btn-hover-border-color: var(--brand-green-dark);
    --bs-btn-focus-shadow-rgb: 29, 185, 84;
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: var(--brand-green-dark);
    --bs-btn-active-border-color: var(--brand-green-dark);
    --bs-btn-disabled-color: #fff;
    --bs-btn-disabled-bg: var(--brand-green);
    --bs-btn-disabled-border-color: var(--brand-green);
    background: var(--brand-green);
    border: none;
    border-radius: 4px;
    padding: .75rem 1.25rem;
    font-weight: 600;
    color: white;
    text-decoration: none;
    transition: background 0.18s;
}

.btn-brand:hover,
.btn-brand:focus {
    background: var(--brand-green-dark);
    color: white;
}