/* =================================================================
   Calculators hub page — /calculators
   Extends global tokens from /assets/css/style.css
   ================================================================= */

.page-wrap {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-8) var(--space-5) var(--space-16);
}

.breadcrumb {
    font-size: 13px;
    color: var(--color-text-subdued);
    margin-bottom: var(--space-6);
}
.breadcrumb ol {
    list-style: none; margin: 0; padding: 0;
    display: flex; flex-wrap: wrap; gap: var(--space-2);
}
.breadcrumb li::after {
    content: "/";
    margin-left: var(--space-2);
    color: var(--color-border-strong);
}
.breadcrumb li:last-child::after { content: ""; }
.breadcrumb a { color: var(--color-text-subdued); }
.breadcrumb a:hover { color: var(--color-text); }
.breadcrumb [aria-current] { color: var(--color-text); }

/* Hero */
.hub-header {
    text-align: center;
    margin-bottom: var(--space-12);
    padding: 0 var(--space-3);
}
.hub-header h1 {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 var(--space-4);
    color: var(--color-text);
}
.hub-header .lede {
    font-size: clamp(16px, 2.4vw, 18px);
    color: var(--color-text-subdued);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Section */
.hub-section {
    margin-bottom: var(--space-12);
}
.hub-section__title {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-subdued);
    margin: 0 0 var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

/* Grid */
.hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

/* Card */
.hub-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-6);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    text-decoration: none !important;
    color: var(--color-text) !important;
    transition: border-color .2s, transform .2s, box-shadow .2s;
    min-height: 220px;
    overflow: hidden;
}
.hub-card::before {
    /* subtle hover background gradient */
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0,0,0,0.02) 100%);
    opacity: 0;
    transition: opacity .2s;
    pointer-events: none;
}
.hub-card:hover {
    border-color: var(--color-text);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    text-decoration: none !important;
}
.hub-card:hover::before { opacity: 1; }

.hub-card__badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: var(--color-text);
    color: var(--color-primary-text);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    z-index: 2;
}

.hub-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--color-text);
    color: var(--color-primary-text);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-3);
    flex-shrink: 0;
}
.hub-card__icon svg {
    width: 24px;
    height: 24px;
}

.hub-card__title {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.01em;
}
.hub-card__tagline {
    margin: 0 0 var(--space-2);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}
.hub-card__desc {
    margin: 0;
    font-size: 13px;
    color: var(--color-text-subdued);
    line-height: 1.5;
    flex: 1;
}
.hub-card__cta {
    margin-top: var(--space-3);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    align-self: flex-start;
    transition: transform .15s;
}
.hub-card:hover .hub-card__cta {
    transform: translateX(2px);
}
.hub-card__cta span {
    display: inline-block;
    margin-left: 2px;
    transition: transform .15s;
}
.hub-card:hover .hub-card__cta span {
    transform: translateX(3px);
}

/* "Coming soon" cards — non-interactive */
.hub-card--placeholder {
    opacity: 0.55;
    cursor: default;
    pointer-events: auto; /* allow link clicks inside */
}
.hub-card--placeholder:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--color-border);
}
.hub-card--placeholder:hover::before { opacity: 0; }
.hub-card--placeholder .hub-card__icon {
    background: var(--color-surface-subtle);
    color: var(--color-text-subdued);
    border: 1px dashed var(--color-border-strong);
}
.hub-card--placeholder a {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Bottom content section */
.hub-content {
    max-width: var(--container-narrow);
    margin: var(--space-12) auto 0;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}
.hub-content h2 {
    font-size: clamp(22px, 4vw, 28px);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 var(--space-4);
}
.hub-content p {
    margin: 0 0 var(--space-4);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 15px;
}
.hub-content a {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Mobile */
@media (max-width: 640px) {
    .page-wrap { padding: var(--space-5) var(--space-3) var(--space-12); }
    .hub-header { margin-bottom: var(--space-8); }
    .hub-section { margin-bottom: var(--space-8); }
    .hub-grid { grid-template-columns: 1fr; gap: var(--space-3); }
    .hub-card { padding: var(--space-5); min-height: 0; }
}