:root {
    --bg: #070b12;
    --text: rgba(255,255,255,.96);
    --muted: rgba(255,255,255,.70);
    --border: rgba(255,255,255,.14);

    /* Clean Electric Blue */
    --accent: #2f7cff;
    --accent-soft: rgba(47,124,255,.18);
    --accent-glow: rgba(47,124,255,.35);

    --danger: #ff5a5a;
    --radius: 18px;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
    margin: 0;
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
    line-height: 1.5;

    background:
            radial-gradient(900px 520px at 15% -10%, rgba(47,124,255,.14), transparent 60%),
            radial-gradient(700px 420px at 90% 0%, rgba(255,255,255,.04), transparent 65%),
            linear-gradient(180deg, #05070d 0%, var(--bg) 100%);
}

/* Subtle noise overlay */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: .05;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
    mix-blend-mode: overlay;
}

/* Shared container helper */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

a { color: inherit; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .85rem 1.15rem;
    border-radius: 999px;
    background: rgba(255,255,255,.08);
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease, background .15s ease;
    will-change: transform;
}

.btn:hover {
    transform: translateY(-1px);
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft), 0 14px 40px rgba(0,0,0,.45);
}

.btn-outline { background: transparent; }
.btn-outline:hover { background: rgba(255,255,255,.06); }

/* Links */
.link {
    color: var(--muted);
    text-decoration: none;
    border-bottom: 1px solid transparent;
}
.link:hover {
    color: var(--text);
    border-bottom-color: var(--border);
}

/* Card base */
.card {
    position: relative;
    overflow: hidden;
    padding: 1.2rem 1.1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(255,255,255,.05);
    box-shadow: 0 12px 40px rgba(0,0,0,.22);
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
    will-change: transform;
}

.card::before {
    content: "";
    position: absolute;
    inset: -1px;
    background: radial-gradient(420px 220px at 20% 0%, rgba(47,124,255,.16), transparent 60%);
    opacity: 0;
    transition: opacity .18s ease;
    pointer-events: none;
}

.card:hover {
    transform: translateY(-3px);
    border-color: rgba(47,124,255,.30);
    box-shadow: 0 20px 70px rgba(0,0,0,.35);
}

.card:hover::before { opacity: 1; }

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

/* Sticky mobile CTA row */
.mobile-cta {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    bottom: 14px;
    width: min(720px, calc(100% - 24px));
    z-index: 9998;

    display: none;
    gap: .6rem;
    padding: .55rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(7, 11, 18, .82);
    backdrop-filter: blur(12px);
    box-shadow: 0 18px 70px rgba(0,0,0,.45);
}

.mobile-cta a {
    flex: 1;
    padding: .75rem .9rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,.06);
    text-decoration: none;
    color: var(--text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    font-size: .95rem;
}

.mobile-cta a.primary {
    border-color: rgba(47,124,255,.35);
    box-shadow: 0 0 0 3px rgba(47,124,255,.10);
}

@media (max-width: 820px) {
    .mobile-cta { display: flex; }
}

.whatsapp-float {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 56px;
    height: 56px;
    background: #25d366;
    border-radius: 50%;
    display: grid;
    place-items: center;
    z-index: 9999;
    box-shadow: 0 12px 30px rgba(0,0,0,.45);
    transition: transform .2s ease, box-shadow .2s ease;
}

.whatsapp-float:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 18px 40px rgba(0,0,0,.55);
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
    fill: #fff;
}