body {
    background-color: #006b2c;
    background-image: radial-gradient(ellipse at 60% 40%, #007A33 0%, #004f1e 100%);
    font-family: 'League Spartan', sans-serif;
    font-size: 16px;
    text-align: center;
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    gap: 24px;
    box-sizing: border-box;
    padding: 40px 24px;
    position: relative;
    overflow-x: hidden;
}

/* ── Faint Boston map background ── */
.map-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.13;
    width: 100%;
    height: 100%;
    /* taken fully out of flex flow */
    flex: none;
    align-self: auto;
}

.map-bg svg {
    width: 100%;
    height: 100%;
}

h1, h2, p, .nav-container, .info-section {
    position: relative;
    z-index: 1;
}

@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 4px 18px rgba(0,0,0,0.25), 0 0 0 0 rgba(255, 215, 0, 0.55); }
    50%       { box-shadow: 0 4px 18px rgba(0,0,0,0.25), 0 0 0 14px rgba(255, 215, 0, 0); }
}

h1 {
    font-size: clamp(38px, 8vw, 56px);
    margin: 0 0 4px 0;
    font-weight: 900;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 16px rgba(0,0,0,0.3);
}

h2 {
    font-size: clamp(18px, 3.6vw, 24px);
    margin: 0 0 4px 0;
    font-weight: 600;
    opacity: 0.88;
}

p {
    font-size: clamp(15px, 2.6vw, 18px);
    margin: 0;
    opacity: 0.75;
    font-style: italic;
}

h1,
h2,
p,
.nav-container,
.start-box,
.nav-box,
.info-section,
.info-section h3,
.tips-list,
.tips-list li {
    text-align: center;
}

.nav-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 90%;
    max-width: 450px;
    margin: 20px auto;
}

.start-box, .nav-box {
    display: block;
    width: 100%;
    padding: 18px 36px;
    font-weight: 800;
    border-radius: 10px;
    text-decoration: none;
    cursor: pointer;
    text-align: center;
    font-size: 17px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.start-box {
    background: #FFD700;
    color: #004a1a;
    animation: glow-pulse 2.8s ease-in-out infinite;
}

.nav-box {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255,255,255,0.35);
}

.start-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 215, 0, 0.4);
    animation: none;
}

.nav-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
    background: rgba(255,255,255,0.22);
}

.info-section {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-radius: 14px;
    width: 90%;
    max-width: 680px;
    box-sizing: border-box;
    padding: 24px 28px;
    margin: 16px auto;
    display: grid;
    gap: 14px;
    text-align: center;
}

.info-section h3 {
    font-size: 24px;
    margin: 0;
    font-weight: 800;
    text-align: center;
}

.tips-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.tips-list li {
    margin: 0;
    font-size: 16px;
    line-height: 1.45;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 10px 16px;
    text-align: center;
    white-space: nowrap;
}

@media (max-width: 768px) {
    body {
        padding: 24px 14px;
        gap: 18px;
    }

    .nav-container {
        width: 100%;
        max-width: 520px;
        margin: 12px auto;
    }

    .start-box,
    .nav-box {
        padding: 14px 16px;
        font-size: 15px;
    }

    .info-section {
        width: 90%;
        max-width: 450px;
        padding: 18px 14px;
        margin-top: 12px;
        gap: 10px;
    }

    .info-section h3 {
        font-size: 21px;
    }

    .tips-list {
        gap: 8px;
    }

    .tips-list li {
        font-size: 15px;
        padding: 9px 10px;
    }
}