/* =========================
   VIONEX PREMIUM DESIGN SYSTEM
   Primary: White
   Secondary: Yellow
========================= */

:root {
    --white: #ffffff;
    --yellow: #FACC15;
    --yellow-soft: #FEF3C7;
    --black: #111827;
    --muted: #6B7280;
    --border: #E5E7EB;
    --blue: #2563EB;
    --green: #16A34A;
    --shadow: 0 22px 55px rgba(17, 24, 39, .12);
    --radius: 20px;
}

* {
    box-sizing: border-box;
    font-family: system-ui, -apple-system, "Segoe UI",
        Roboto, Helvetica, Arial, sans-serif;
}

body {
    margin: 0;
    background:
        radial-gradient(900px 300px at 10% 0%, rgba(250, 204, 21, .25), transparent 60%),
        #ffffff;
    color: var(--black);
}

/* ================= TOP BAR ================= */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar i {
    font-size: 18px;
    color: #444;
    cursor: pointer;
}

.logo {
    font-weight: 900;
    font-size: 16px;
    letter-spacing: .06em;
    color: #111;
}

/* ================= WRAPPER ================= */
.wrapper {
    padding: 20px 16px 110px;
    max-width: 680px;
    margin: auto;
}

/* ================= HEADINGS ================= */
h3 {
    margin: 8px 0 18px;
    font-size: 22px;
    font-weight: 900;
    letter-spacing: -0.02em;
}

/* ================= HIGHLIGHT ================= */
.highlight {
    background: linear-gradient(135deg, var(--yellow-soft), #fff);
    border-left: 5px solid var(--yellow);
    padding: 16px;
    border-radius: 16px;
    font-size: 14.5px;
    line-height: 1.7;
    margin-bottom: 18px;
    box-shadow: var(--shadow);
}

/* ================= CARD ================= */
.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 18px;
}

.card h4 {
    margin: 0 0 10px;
    font-size: 16px;
    font-weight: 900;
    letter-spacing: -0.01em;
}

.card p {
    font-size: 14.5px;
    color: var(--muted);
    line-height: 1.7;
}

/* ================= BUTTONS ================= */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 15px;
    margin-top: 14px;
    border-radius: 16px;
    font-weight: 900;
    font-size: 15px;
    text-decoration: none;
    transition: transform .15s ease, box-shadow .15s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--yellow), #FFC107);
    color: #111;
    border: 1px solid rgba(250, 204, 21, .8);
    box-shadow: 0 14px 30px rgba(250, 204, 21, .35);
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-green {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: #fff;
    box-shadow: 0 14px 30px rgba(34, 197, 94, .35);
}

.btn-blue {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    box-shadow: 0 14px 30px rgba(37, 99, 235, .35);
}

/* ================= LIST STYLE ================= */
.info-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.info-list li {
    font-size: 14.5px;
    color: var(--muted);
    margin-bottom: 6px;
}

/* ================= BOTTOM NAV ================= */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.bottom-nav a {
    flex: 1;
    text-align: center;
    font-size: 11px;
    color: #6b7280;
    text-decoration: none;
}

.bottom-nav a i {
    display: block;
    font-size: 20px;
    margin-bottom: 4px;
}

.bottom-nav a.active {
    color: #111;
    font-weight: 900;
    background: rgba(250, 204, 21, .25);
    padding: 8px 10px;
    border-radius: 14px;
}

.bottom-nav a.whatsapp {
    color: #22c55e;
}

/* ================= RESPONSIVE ================= */
@media(max-width:420px) {
    .logo {
        font-size: 14px;
    }

    h3 {
        font-size: 20px;
    }
}