:root {
    --nrrf-gold: #C8A96A;
    --nrrf-gold-strong: #B08A3E;
    --nrrf-text: #222222;

    /* WINDOWS PHONE METRO PALETTE */
    --tile-purple: #68217A;
    --tile-blue: #0078D7;
    --tile-teal: #00B7C3;
    --tile-orange: #F7630C;
    --tile-green: #107C10;
    --tile-red: #D13438;

    --nrrf-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* RESET */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--nrrf-font);
    color: var(--nrrf-text);

    background-image: url("../img/bg.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;

    position: relative;
}

/* OVERLAY */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.15);
    pointer-events: none;
    z-index: -1;
}

/* HEADER */
.nrrf-header {
    background-color: transparent;
}

.nrrf-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* LOGO */
.nrrf-logo-block {
    display: flex;
    align-items: center;
}

.nrrf-logo-img {
    height: 140px;
    width: auto;
    display: block;
}

/* GOLD LINE */
.nrrf-header-gold-line {
    height: 6px;
    background: linear-gradient(to right, var(--nrrf-gold-strong), var(--nrrf-gold));
}

/* LOGIN BUTTON (HEADER) */
.tile-login {
    background-color: #ffffff;
    border: 2px solid var(--nrrf-gold);
    color: var(--nrrf-text);
    padding: 14px 22px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 160px;
    transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.05s ease;
}

.tile-login:hover {
    background-color: #fffaf2;
    box-shadow: 0 0 0 2px rgba(200, 169, 106, 0.25);
    transform: translateY(-1px);
}

/* MAIN LAYOUT */
.nrrf-main {
    max-width: 1400px;
    margin: 40px auto;
    padding: 0 40px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

/* TILE GRID */
.tile-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

/* HERO + ENGINE SPANS */
.tile-row-hero .tile-hero,
.tile-row-engine .tile-large {
    grid-column: span 2;
}

/* TILE BASE */
.tile {
    border-radius: 0;
    padding: 22px;
    text-decoration: none;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 150px;

    box-shadow: 0 4px 8px rgba(0,0,0,0.12);
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

/* TILE COLOURS — FIXED ORDER */
.tile-row .tile:nth-child(1) { background-color: var(--tile-purple); }
.tile-row .tile:nth-child(2) { background-color: var(--tile-blue); }
.tile-row .tile:nth-child(3) { background-color: var(--tile-teal); }
.tile-row .tile:nth-child(4) { background-color: var(--tile-orange); }

/* LOGIN TILE OVERRIDE */
.tile-login-tile {
    background-color: #ffffff !important;
    color: var(--nrrf-text) !important;
    border: 2px solid var(--nrrf-gold);
    font-weight: 600;
}

.tile-login-tile:hover {
    background-color: #fffaf2 !important;
    transform: translateY(-3px);
}

/* HELP ME NOW OVERRIDE */
.tile-help-now {
    background-color: var(--tile-red) !important;
}

/* TILE TEXT */
.tile h2,
.tile h3 {
    margin: 0 0 10px 0;
    font-weight: 600;
}

.tile p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.45;
}

/* HOVER */
.tile:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 14px rgba(0,0,0,0.18);
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .tile-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .tile-row-hero .tile-hero,
    .tile-row-engine .tile-large {
        grid-column: span 2;
    }
}

@media (max-width: 600px) {
    .nrrf-header-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .tile-row {
        grid-template-columns: 1fr;
    }

    .tile-row-hero .tile-hero,
    .tile-row-engine .tile-large {
        grid-column: span 1;
    }
}
    }
}
    }
}