/* Fonts (placeholders for URLs) */
@font-face {
    font-family: "Onest";
    src: url("/* URL-PLACEHOLDER-Onest-ExtraLight-200.woff2 */") format("woff2");
    font-weight: 200;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Onest";
    src: url("/* URL-PLACEHOLDER-Onest-Regular-400.woff2 */") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Onest";
    src: url("/* URL-PLACEHOLDER-Onest-Medium-500.woff2 */") format("woff2");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Onest";
    src: url("/* URL-PLACEHOLDER-Onest-Bold-700.woff2 */") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Onest";
    src: url("/* URL-PLACEHOLDER-Onest-ExtraBold-800.woff2 */") format("woff2");
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Onest";
    src: url("/* URL-PLACEHOLDER-Onest-Black-900.woff2 */") format("woff2");
    font-weight: 900;
    font-style: normal;
    font-display: swap;
}

/* CSS variables */
:root {
    /* Colors */
    --bg: #0b0f12; /* page background */
    --panel: #0f1418; /* panel / card */
    --muted: #9aa8b6; /* secondary text */
    --text: #e6eef8; /* main text -> aim contrast >=4.5 on --bg */
    --accent: #3fe1c9; /* primary accent */
    --accent-600: #2ecdb0;
    --danger: #ff6b6b;
    --glass: rgba(255,255,255,0.03);
    /* SVG / icons */
    --svg-fill: var(--text);
    --svg-stroke: var(--accent);
    --svg-muted: var(--muted);
    /* Typography */
    --ff: "Onest", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    --step-0: clamp(0.8rem, 0.75rem + 0.2vw, 0.9rem); /* small UI text */
    --step-1: clamp(1rem, 0.95rem + 0.3vw, 1.1rem); /* body */
    --step-2: clamp(1.125rem, 1.05rem + 0.6vw, 1.25rem); /* h6 / small headings */
    --step-3: clamp(1.375rem, 1.25rem + 0.8vw, 1.625rem); /* h5 */
    --step-4: clamp(1.75rem, 1.6rem + 1.2vw, 2rem); /* h4 */
    --step-5: clamp(2.25rem, 2rem + 1.6vw, 2.75rem); /* h3 */
    --step-6: clamp(2.75rem, 2.4rem + 2.0vw, 3.5rem); /* h2 */
    --step-7: clamp(3.5rem, 3rem + 3.0vw, 4.5rem); /* h1 / hero */
    /* Layout */
    --container-max: 80rem;
    --radius: 0.75rem;
    --radius-sm: 0.5rem;
    --gap: 1rem;
    --focus-ring: 0 0 0 0.2rem rgba(63,225,201,0.18);
    /* Misc */
    --glass-border: rgba(255,255,255,0.03);
    --transition: 180ms cubic-bezier(.2,.9,.2,1);
    --hero-bg-svg: none; /* settable data-uri for background svg */
}

/* Base reset / mobile-first */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    height: 100%;
}

body {
    min-height: 100%;
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--ff);
    font-size: 16px; /* base for rem */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.35;
    -webkit-text-size-adjust: 100%;
    text-rendering: optimizeLegibility;
}

/* Utility: screen reader only */
.sr-only,
.visually-hidden {
    position: absolute !important;
    height: 1px;
    width: 1px;
    overflow: hidden;
    clip: rect(1px,1px,1px,1px);
    white-space: nowrap;
    border: 0;
    padding: 0;
    margin: -1px;
}

/* Container */
.container {
    width: calc(100% - 2rem);
    max-width: var(--container-max);
    margin: 0 auto;
    padding-inline: 1rem;
}

/* Grid utility */
.grid {
    display: grid;
    gap: var(--gap);
}

.grid--2 {
    grid-template-columns: 1fr 1fr;
}

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

.grid--cols-auto {
    grid-template-columns: repeat(auto-fit,minmax(12rem,1fr));
}

/* Header & nav */
.header-sticky {
    width: 100%;
    position: sticky;
    top: 0;
    z-index: 60;
    backdrop-filter: blur(6px);
    background: linear-gradient(180deg, rgba(11,15,18,0.6), rgba(11,15,18,0.45));
    border-bottom: 1px solid var(--glass-border);
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-block: 0.75rem;
}

.nav-logo a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    font-size: var(--step-2);
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-link {
    color: var(--muted);
    text-decoration: none;
    font-size: var(--step-1);
    padding: 0.45rem 0.6rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition), transform var(--transition);
}

    .nav-link:focus,
    .nav-link:hover {
        color: var(--text);
        background: rgba(255,255,255,0.02);
        transform: translateY(-1px);
        outline: none;
    }

    .nav-link[aria-current="true"] {
        color: var(--accent);
        font-weight: 600;
    }

/* Main content / Hero */
.main-content {
    padding-block: 1.25rem;
}

/* Hero with SVG-friendly variables */
.hero-section {
    padding-block: 2rem 2.5rem;
    position: relative;
    overflow: visible;
}

.hero-background {
    position: relative;
    padding-block: 2rem;
    border-radius: var(--radius);
    background: radial-gradient(1200px 400px at 10% 20%, rgba(63,225,201,0.06), transparent 8%), radial-gradient(900px 320px at 90% 80%, rgba(63,225,201,0.03), transparent 8%), linear-gradient(180deg, rgba(255,255,255,0.01), transparent);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(4px);
    isolation: isolate;
    /* background SVG support via variable */
    background-image: var(--hero-bg-svg), linear-gradient(0deg,transparent,transparent);
    background-repeat: no-repeat;
    background-position: right top;
}

/* Hero grid */
.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    align-items: center;
}

.hero-text {
    padding-block: 0.25rem;
    max-width: 54rem;
}

.hero-title {
    margin: 0 0 0.5rem 0;
    font-weight: 800;
    font-size: var(--step-7);
    line-height: 1;
    letter-spacing: -0.01em;
    color: var(--text);
    text-wrap: balance;
}

.hero-description {
    margin: 0;
    color: var(--muted);
    font-size: var(--step-2);
    max-width: 48rem;
}

/* QR aside */
.qr-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.qr-image {
    width: 6.5rem;
    height: 6.5rem;
    object-fit: cover;
    border-radius: 0.5rem;
    border: 1px solid rgba(255,255,255,0.03);
    background: var(--panel);
    padding: 0.35rem;
}

.qr-caption {
    font-size: var(--step-0);
    color: var(--muted);
}

/* Stats */
.stats-section {
    padding-block: 1.5rem;
}

.stats-label {
    color: var(--muted);
    font-size: var(--step-0);
    margin: 0 0 0.25rem 0;
}

.stats-content {
    display: flex;
    gap: 1rem;
    align-items: baseline;
    flex-wrap: wrap;
}

.stats-amount {
    font-weight: 900;
    font-size: var(--step-6);
    color: var(--text);
    letter-spacing: -0.02em;
}

.stats-currency {
    font-weight: 700;
    color: var(--accent);
    font-size: var(--step-4);
}

.stats-description p {
    margin: 0;
    color: var(--muted);
    font-size: var(--step-1);
}

/* Benefits */
.benefits-section {
    padding-block: 1.5rem 2rem;
}

.benefit-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    align-items: center;
    padding: 1rem;
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(255,255,255,0.01), transparent);
    border: 1px solid var(--glass-border);
    margin-bottom: 1rem;
}

.benefit-card--reversed {
    direction: ltr;
}
/* keeps DOM order but visual reversal at larger widths */
.benefit-content {
    padding: 0.25rem 0;
}

.benefit-title {
    margin: 0 0 0.5rem 0;
    font-size: var(--step-5);
    font-weight: 800;
    color: var(--text);
}

.benefit-description {
    margin: 0;
    color: var(--muted);
    font-size: var(--step-1);
}

.benefit-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 0.6rem;
}

/* FAQ */
.faq-section {
    padding-block: 1.25rem;
}

.faq-main-title {
    margin: 0 0 1rem 0;
    font-size: var(--step-5);
    color: var(--text);
}

.faq-list {
    display: grid;
    gap: 0.75rem;
}

.faq-item {
    border-radius: var(--radius-sm);
    background: var(--panel);
    padding: 0.5rem;
    border: 1px solid var(--glass-border);
}

.faq-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: transparent;
    border: 0;
    color: var(--text);
    font-size: var(--step-2);
    padding: 0.45rem;
    cursor: pointer;
}

    .faq-toggle .faq-question-text {
        color: var(--text);
        font-weight: 700;
    }

    .faq-toggle .faq-icon {
        display: inline-block;
        color: var(--svg-muted);
        transition: transform var(--transition);
    }

    .faq-toggle[aria-expanded="true"] .faq-icon {
        transform: rotate(-180deg);
        color: var(--accent);
    }

.faq-answer {
    padding-top: 0.5rem;
    color: var(--muted);
    font-size: var(--step-1);
}

/* Cards */
.card {
    background: linear-gradient(180deg, rgba(255,255,255,0.01), transparent);
    border-radius: var(--radius);
    border: 1px solid var(--glass-border);
    padding: 1rem;
    box-shadow: 0 6px 18px rgba(2,6,8,0.35);
    color: var(--text);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 0.9rem;
    font-size: var(--step-1);
    border-radius: 0.6rem;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    border: 1px solid transparent;
    text-decoration: none;
    user-select: none;
}

    .btn:focus {
        outline: none;
        box-shadow: var(--focus-ring);
    }

/* Primary */
.btn-primary {
    background: linear-gradient(180deg,var(--accent),var(--accent-600));
    color: #041013;
    font-weight: 700;
    box-shadow: 0 6px 18px rgba(46,205,176,0.12), 0 1px 0 rgba(255,255,255,0.02) inset;
    border-color: rgba(255,255,255,0.03);
}

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(46,205,176,0.14);
    }

    .btn-primary:active {
        transform: translateY(0);
    }

/* Ghost */
.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid rgba(255,255,255,0.04);
    font-weight: 600;
}

    .btn-ghost:hover {
        background: rgba(255,255,255,0.02);
        transform: translateY(-1px);
    }

/* Forms */
input[type="text"],
input[type="email"],
input[type="search"],
textarea,
select {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid rgba(255,255,255,0.04);
    color: var(--text);
    font-size: var(--step-1);
    transition: border-color var(--transition), box-shadow var(--transition);
}

    input::placeholder, textarea::placeholder {
        color: rgba(255,255,255,0.12);
    }

    input:focus, textarea:focus, select:focus {
        border-color: var(--accent);
        box-shadow: var(--focus-ring);
        outline: none;
    }

/* Footer */
.footer {
    margin-top: 2rem;
    padding-block: 1.5rem 2rem;
    border-top: 1px solid var(--glass-border);
    background: linear-gradient(180deg, transparent, rgba(255,255,255,0.01));
}

.download-section {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.download-image {
    width: 6rem;
    height: 6rem;
    object-fit: cover;
    border-radius: 0.6rem;
    border: 1px solid rgba(255,255,255,0.03);
}

/* Accessibility: ensure readable contrast for main text */
/* No colors below are used for main text unless contrast tested */
a, button {
    color: inherit;
}

/* SVG handling - inline and background */
svg, .icon {
    vector-effect: non-scaling-stroke;
    display: inline-block;
    vertical-align: middle;
    fill: var(--svg-fill);
    stroke: var(--svg-stroke);
    stroke-linecap: round;
    stroke-linejoin: round;
}

    svg path, svg circle, svg rect {
        fill: var(--svg-fill);
        stroke: var(--svg-stroke);
    }

/* Background SVG support (user can set --hero-bg-svg to data-uri SVG) */
.bg-svg {
    background-image: var(--hero-bg-svg);
    background-repeat: no-repeat;
    background-position: center;
}

/* Utilities */
.kicker {
    color: var(--accent);
    font-weight: 700;
    font-size: var(--step-0);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.lead {
    font-size: var(--step-3);
    color: var(--text);
}

/* Responsiveness - larger screens */
@media (min-width: 48rem) {
    .nav-menu {
        flex-direction: row;
        align-items: center;
    }

    .hero-content {
        grid-template-columns: 1fr 20rem;
        gap: 2rem;
    }

    .benefit-card {
        grid-template-columns: 1fr 22rem;
    }

    .benefit-card--reversed {
        grid-template-columns: 22rem 1fr;
    }

    .qr-section {
        justify-self: end;
    }

    .stats-content {
        gap: 1.5rem;
        align-items: baseline;
    }
}

/* Wider screens */
@media (min-width: 75rem) {
    .hero-section {
        padding-block: 3rem;
    }

    .hero-background {
        padding-block: 3rem;
    }

    .hero-content {
        grid-template-columns: 1fr 28rem;
    }

    .benefit-card {
        gap: 2rem;
        padding: 1.25rem;
    }
}

/* Small tweaks for print */
@media print {
    body {
        background: #fff;
        color: #000;
    }

    .header-sticky, .footer {
        display: none;
    }
}

/* Minimal comments for maintainers */
/* Use CSS variables to swap theme colors and hero background SVG */
/* All spacing in rem-based units; typography via clamp() for smooth scaling */