/* ==========================================================================
   FiveMRides Studio - Tools Hub landing page
   Reuses --fro-* design tokens from optimizer.css (loaded as a dependency).
   ========================================================================== */

.frh {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--fro-text);
    max-width: 1100px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 3.5rem;
    position: relative;
    isolation: isolate;
    overflow-x: clip;
}

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

/* Kill theme content-link underlines on cards/buttons (the cards are <a>).
   !important is needed to beat the theme's .entry-content a rule. */
.frh a,
.frh a:hover,
.frh a:focus,
.frh a:active { text-decoration: none !important; }

/* ---------- Ambient background glow ---------- */
.frh-bg {
    position: absolute;
    inset: -10% -20% auto -20%;
    height: 420px;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(45% 60% at 25% 0%, var(--fro-accent-glow), transparent 70%),
        radial-gradient(45% 60% at 80% 10%, var(--fro-accent-2-glow), transparent 70%);
    filter: blur(8px);
    opacity: 0.9;
}

/* ---------- Header ---------- */
.frh-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 2.25rem;
}

.frh-kicker {
    display: inline-block;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--fro-accent);
    padding: 0.35rem 0.9rem;
    border: 1px solid var(--fro-border-light);
    border-radius: 999px;
    background: rgba(0, 240, 255, 0.04);
    margin-bottom: 1.1rem;
}

.frh-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: clamp(1.9rem, 4.5vw, 3rem);
    font-weight: 700;
    line-height: 1.08;
    margin: 0;
    letter-spacing: 0.01em;
    background: linear-gradient(135deg, #fff 0%, var(--fro-accent) 55%, var(--fro-accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.frh-sub {
    color: var(--fro-text-muted);
    font-size: 0.98rem;
    line-height: 1.6;
    margin: 0.9rem auto 0;
    max-width: 540px;
}

/* ---------- Shared credit wallet ---------- */
.frh-wallet {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin: 0 auto 2.75rem;
    padding: 0.85rem 1.1rem;
    width: fit-content;
    max-width: 100%;
    background: linear-gradient(180deg, var(--fro-surface-2), var(--fro-surface));
    border: 1px solid var(--fro-border);
    border-radius: 999px;
    box-shadow: var(--fro-shadow);
}

.frh-wallet-balance {
    display: inline-flex;
    align-items: baseline;
    gap: 0.45rem;
    padding-left: 0.4rem;
}

.frh-wallet-coin {
    color: var(--fro-accent);
    align-self: center;
    filter: drop-shadow(0 0 6px var(--fro-accent-glow));
}

.frh-wallet-num {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--fro-text);
}

.frh-wallet-label {
    font-size: 0.85rem;
    color: var(--fro-text-muted);
}

.frh-wallet-balance--guest .frh-wallet-label { align-self: center; }

.frh-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.74rem;
    font-weight: 600;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
}

.frh-badge--sub {
    color: var(--fro-success);
    background: rgba(52, 211, 153, 0.1);
    border: 1px solid rgba(52, 211, 153, 0.28);
}

/* ---------- Buttons ---------- */
.frh-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1.05rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--fro-transition);
    white-space: nowrap;
}

.frh-btn--primary {
    background: linear-gradient(135deg, var(--fro-accent), var(--fro-accent-2));
    color: #04121a;
}

.frh-btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 22px rgba(0, 240, 255, 0.3);
    color: #04121a;
}

.frh-btn--ghost {
    background: var(--fro-surface-3);
    border: 1px solid var(--fro-border-light);
    color: var(--fro-text);
}

.frh-btn--ghost:hover {
    border-color: var(--fro-accent);
    color: var(--fro-accent);
}

/* ---------- Tool grid ---------- */
.frh-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 1.1rem;
}

.frh-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1.4rem 1.3rem;
    background: linear-gradient(180deg, var(--fro-surface-2), var(--fro-surface));
    border: 1px solid var(--fro-border);
    border-radius: var(--fro-radius);
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    transition: transform var(--fro-transition), border-color var(--fro-transition), box-shadow var(--fro-transition);
}

/* Gradient hairline that lights up on hover */
.frh-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, transparent 40%, var(--frh-c1) 100%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--fro-transition);
    pointer-events: none;
}

.frh-card-glow {
    position: absolute;
    top: -40%;
    right: -30%;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: var(--frh-glow);
    filter: blur(40px);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.frh-card:hover {
    transform: translateY(-4px);
    border-color: transparent;
    box-shadow: var(--fro-shadow-lg);
}

.frh-card:hover::before { opacity: 1; }
.frh-card:hover .frh-card-glow { opacity: 0.55; }

/* Accent variants */
.frh-card--cyan   { --frh-c1: var(--fro-accent);   --frh-glow: var(--fro-accent-glow);   }
.frh-card--purple { --frh-c1: var(--fro-accent-2); --frh-glow: var(--fro-accent-2-glow); }

.frh-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--fro-radius-sm);
    margin-bottom: 1.1rem;
    color: var(--frh-c1);
    background: color-mix(in srgb, var(--frh-c1) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--frh-c1) 28%, transparent);
    transition: transform var(--fro-transition), box-shadow var(--fro-transition);
}

.frh-card:hover .frh-card-icon {
    transform: scale(1.06);
    box-shadow: 0 0 18px color-mix(in srgb, var(--frh-c1) 35%, transparent);
}

.frh-card-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.22rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    letter-spacing: 0.01em;
    color: var(--fro-text);
}

.frh-card-desc {
    font-size: 0.875rem;
    line-height: 1.55;
    color: var(--fro-text-muted);
    margin: 0 0 1.25rem;
    flex: 1;
}

.frh-card-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding-top: 0.9rem;
    border-top: 1px solid var(--fro-border);
}

.frh-card-cost {
    font-size: 0.74rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--fro-text);
    padding: 0.28rem 0.65rem;
    border-radius: 999px;
    background: var(--fro-surface-3);
    border: 1px solid var(--fro-border);
}

.frh-card-go {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--frh-c1);
}

.frh-card-go svg {
    transition: transform var(--fro-transition);
}

.frh-card:hover .frh-card-go svg { transform: translateX(3px); }

/* ---------- Footer note ---------- */
.frh-foot-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-align: center;
    margin: 2.5rem auto 0;
    max-width: 560px;
    font-size: 0.82rem;
    line-height: 1.5;
    color: var(--fro-text-muted);
}

.frh-foot-note svg { flex-shrink: 0; color: var(--fro-accent); }

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
    .frh { padding: 1.75rem 1rem 2.5rem; }
    .frh-wallet { width: 100%; justify-content: space-between; border-radius: var(--fro-radius); }
    .frh-grid { grid-template-columns: 1fr; }
}

/* Reduced-motion: kill transforms, keep color cues */
@media (prefers-reduced-motion: reduce) {
    .frh-card, .frh-card-icon, .frh-card-go svg, .frh-btn { transition: none; }
    .frh-card:hover { transform: none; }
    .frh-card:hover .frh-card-icon { transform: none; }
}