:root {
    --nrrf-gold: #C8A96A;
    --nrrf-gold-strong: #B08A3E;
    --nrrf-text: #222222;
    --nrrf-grey-bg: #f3f3f3;
    --nrrf-grey-border: #d4d4d4;
    --nrrf-login-border: #C8A96A;
    --nrrf-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
    margin: 0;
    font-family: var(--nrrf-font);
    color: var(--nrrf-text);
    background-color: #ffffff;
}

/* HEADER */

.nrrf-header {
    background-color: #ffffff;
    border-bottom: 1px solid #e5e5e5;
}

.nrrf-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 20px 12px 20px;
    display: flex;
    align-items: center;
}

/* LOGO SIZE — FIXED + BIGGER */
.nrrf-logo-img {
    height: 60px;
    width: auto;
}

@media (min-width: 768px) {
    .nrrf-logo-img {
        height: 75px;
    }
}

@media (min-width: 1024px) {
    .nrrf-logo-img {
        height: 90px;
    }
}

.nrrf-header-spacer {
    flex: 1;
}

.nrrf-login-group {
    display: flex;
    gap: 10px;
}

.tile-login {
    background-color: #ffffff;
    border: 1px solid var(--nrrf-login-border);
    color: var(--nrrf-text);
    padding: 10px 16px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 150px;
    min-height: 40px;
    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);
}

.tile-login:active {
    transform: translateY(0);
    box-shadow: none;
}

.nrrf-header-gold-line {
    height: 4px;
    background: linear-gradient(to right, var(--nrrf-gold-strong), var(--nrrf-gold));
}

/* MAIN LAYOUT */

.nrrf-main {
    max-width: 1200px;
    margin: 24px auto 40px auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tile-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

/* HERO ROW */
.tile-row-hero .tile-hero {
    grid-column: span 2;
}

/* ENGINE ROW */
.tile-row-engine .tile-large {
    grid-column: span 2;
}

/* TILE BASE STYLES */

.tile {
    background-color: var(--nrrf-grey-bg);
    border-radius: 6px;
    border: 1px solid var(--nrrf-grey-border);
    padding: 18px 20px;
    text-decoration: none;
    color: var(--nrrf-text);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 120px;
    transition: box-shadow 0.15s ease, transform 0.05s ease, background-color 0.15s ease;
}

.tile h2,
.tile h3 {
    margin: 0 0 8px 0;
    font-weight: 600;
}

.tile p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

.tile:hover {
    background-color: #ffffff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    transform: translateY(-1px);
}

.tile:active {
    transform: translateY(0);
    box-shadow: none;
}

/* HERO TILES */
.tile-hero {
    background-color: #ffffff;
    border: 1px solid var(--nrrf-grey-border);
}

/* HELP ME NOW emphasis */
.tile-help-now {
    border: 1px solid var(--nrrf-gold-strong);
    background: linear-gradient(to bottom, #fffdf8, #fff8ea);
}

/* 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;
    }

    .nrrf-login-group {
        flex-direction: column;
        align-items: flex-end;
    }
}

@media (max-width: 600px) {
    .nrrf-header-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .nrrf-header-spacer {
        display: none;
    }

    .nrrf-login-group {
        width: 100%;
        justify-content: flex-start;
    }

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

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