/* ==========================================================================
   Silver Glass — shared/components.css
   Hero, panels, cards, accordions, code, tables, badges, buttons, callouts.
   Authority: .agents/design/design-system.md (sections 3 and 4).
   Compose these before writing new CSS.
   ========================================================================== */

/* --- Eyebrow & lead ------------------------------------------------------- */

.eyebrow {
    display: block;
    margin: 0 0 .5rem;
    font-size: .76rem;
    font-weight: 700;
    letter-spacing: .11em;
    text-transform: uppercase;
    color: var(--ink-400);
}

.lead {
    max-width: 68ch;
    font-size: clamp(1.02rem, .98rem + .25vw, 1.14rem);
    color: var(--ink-500);
}

/* --- Hero ----------------------------------------------------------------- */

.hero {
    position: relative;
    overflow: hidden;
    padding: clamp(1.75rem, 1.3rem + 2.2vw, 3.25rem);
    background: var(--glass);
    -webkit-backdrop-filter: var(--blur);
    backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.hero::before {
    content: "";
    position: absolute;
    inset: -40% -10% auto auto;
    width: 460px;
    height: 460px;
    background: radial-gradient(circle, rgba(255, 255, 255, .9), transparent 62%);
    pointer-events: none;
}

.hero > * {
    position: relative;
}

.hero h1 {
    margin-bottom: .45rem;
}

.hero .lead {
    margin-bottom: 0;
}

/* --- Panel / section ------------------------------------------------------ */

.panel,
.section {
    padding: clamp(1.25rem, 1rem + 1.1vw, 2rem);
    background: var(--glass);
    -webkit-backdrop-filter: var(--blur);
    backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.panel > :last-child,
.section > :last-child {
    margin-bottom: 0;
}

.section > h2:first-child,
.panel > h2:first-child {
    margin-top: 0;
}

/* --- Card grid ------------------------------------------------------------ */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(248px, 1fr));
    gap: 1rem;
}

.card {
    display: block;
    padding: 1.15rem 1.2rem;
    background: var(--glass);
    -webkit-backdrop-filter: var(--blur);
    backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

a.card {
    color: inherit;
    text-decoration: none;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

a.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--white);
    color: inherit;
}

.card__icon {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    margin-bottom: .7rem;
    border-radius: var(--radius-sm);
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: .82rem;
    font-weight: 700;
}

.card__title {
    margin: 0 0 .3rem;
    font-size: 1.02rem;
    font-weight: 650;
    color: var(--ink-900);
}

.card__desc {
    margin: 0;
    font-size: .9rem;
    color: var(--ink-500);
}

.card__more {
    display: inline-block;
    margin-top: .75rem;
    font-size: .85rem;
    font-weight: 600;
    color: var(--accent-strong);
}

a.card:hover .card__more {
    text-decoration: underline;
}

/* --- Feature list --------------------------------------------------------- */

.feature-list {
    display: grid;
    gap: .6rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.feature-list > li {
    margin: 0;
    padding: .8rem 1rem;
    background: var(--glass-faint);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-sm);
    font-size: .95rem;
}

.feature-list > li > strong {
    display: block;
    margin-bottom: .15rem;
}

/* --- Accordion ------------------------------------------------------------ */

.accordion {
    display: grid;
    gap: .6rem;
}

details.acc {
    background: var(--glass);
    -webkit-backdrop-filter: var(--blur);
    backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

details.acc > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding: .85rem 1rem;
    color: var(--ink-900);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    border-radius: inherit;
}

details.acc > summary::-webkit-details-marker {
    display: none;
}

details.acc > summary::after {
    content: "+";
    flex: none;
    width: 22px;
    height: 22px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1;
}

details.acc[open] > summary::after {
    content: "\2013";
}

details.acc > summary:hover {
    background: var(--glass-faint);
}

.acc__body {
    padding: 0 1rem 1rem;
    border-top: 1px solid var(--hairline);
    padding-top: .9rem;
}

.acc__body > :last-child {
    margin-bottom: 0;
}

/* --- Code ----------------------------------------------------------------- */

.code-label {
    display: block;
    margin-bottom: .4rem;
    font-family: var(--mono);
    font-size: .78rem;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--ink-400);
}

pre {
    margin: 0 0 1rem;
    padding: 1rem 1.1rem;
    overflow-x: auto;
    background: #1c2431;
    border: 1px solid rgba(27, 36, 48, .55);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    color: #dfe6f1;
    font-family: var(--mono);
    font-size: .855rem;
    line-height: 1.6;
    tab-size: 4;
}

pre code {
    padding: 0;
    background: none;
    border: 0;
    color: inherit;
    font-size: inherit;
}

code {
    padding: .12em .38em;
    background: var(--accent-soft);
    border-radius: 5px;
    color: var(--accent-strong);
    font-family: var(--mono);
    font-size: .89em;
    word-break: break-word;
}

/* --- Table ---------------------------------------------------------------- */

.table-wrap {
    overflow-x: auto;
    margin: 0 0 1rem;
    border: 1px solid var(--hairline);
    border-radius: var(--radius-sm);
    background: var(--glass-faint);
}

.table-wrap table {
    width: 100%;
    min-width: 480px;
    border-collapse: collapse;
    font-size: .92rem;
}

.table-wrap th,
.table-wrap td {
    padding: .65rem .85rem;
    text-align: left;
    border-bottom: 1px solid var(--hairline);
    vertical-align: top;
}

.table-wrap th {
    background: var(--glass-strong);
    color: var(--ink-900);
    font-weight: 650;
    white-space: nowrap;
}

.table-wrap tr:last-child td {
    border-bottom: 0;
}

/* --- Badge & chip --------------------------------------------------------- */

.badge {
    display: inline-block;
    padding: .16em .6em;
    border-radius: 999px;
    background: var(--silver-200);
    color: var(--ink-700);
    font-size: .74rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    vertical-align: middle;
}

.badge--accent {
    background: var(--accent-soft);
    color: var(--accent-strong);
}

.badge--ok {
    background: rgba(31, 122, 84, .12);
    color: var(--ok);
}

.badge--warn {
    background: rgba(154, 107, 22, .13);
    color: var(--warn);
}

.chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin: 0 0 1rem;
    padding: 0;
    list-style: none;
}

.chip {
    display: inline-flex;
    align-items: center;
    padding: .25rem .7rem;
    background: var(--glass-strong);
    border: 1px solid var(--hairline);
    border-radius: 999px;
    color: var(--ink-700);
    font-family: var(--mono);
    font-size: .8rem;
    text-decoration: none;
}

a.chip:hover {
    border-color: var(--accent);
    color: var(--accent-strong);
}

/* --- Buttons -------------------------------------------------------------- */

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin: 0 0 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .55rem 1.1rem;
    background: var(--glass-strong);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    color: var(--ink-700);
    font-family: inherit;
    font-size: .92rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: transform .15s ease, box-shadow .15s ease, color .15s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--ink-900);
}

.btn--primary {
    background: linear-gradient(150deg, var(--accent), var(--accent-strong));
    border-color: transparent;
    color: var(--white);
}

.btn--primary:hover {
    color: var(--white);
}

.btn--sponsor {
    background: linear-gradient(150deg, var(--sponsor), #ad2557);
    border-color: transparent;
    color: var(--white);
}

.btn--sponsor:hover {
    color: var(--white);
}

/* --- Callout -------------------------------------------------------------- */

.callout {
    display: flex;
    gap: .8rem;
    margin: 0 0 1rem;
    padding: .95rem 1.1rem;
    background: var(--glass-faint);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--silver-500);
    border-radius: var(--radius-sm);
    font-size: .93rem;
}

.callout > :last-child {
    margin-bottom: 0;
}

.callout__icon {
    flex: none;
    font-weight: 700;
    color: var(--ink-400);
}

.callout__body > :last-child {
    margin-bottom: 0;
}

.callout--info {
    border-left-color: var(--accent);
    background: var(--accent-soft);
}

.callout--info .callout__icon {
    color: var(--accent-strong);
}

.callout--warn {
    border-left-color: var(--warn);
    background: rgba(154, 107, 22, .09);
}

.callout--warn .callout__icon {
    color: var(--warn);
}

.callout--danger {
    border-left-color: var(--danger);
    background: var(--sponsor-soft);
}

.callout--danger .callout__icon {
    color: var(--danger);
}

/* --- Definition list ------------------------------------------------------ */

.deflist {
    display: grid;
    gap: .5rem;
    margin: 0 0 1rem;
}

.deflist__row {
    display: grid;
    grid-template-columns: minmax(120px, 200px) 1fr;
    gap: .35rem 1rem;
    padding: .7rem .9rem;
    background: var(--glass-faint);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-sm);
    font-size: .93rem;
}

.deflist__term {
    font-family: var(--mono);
    font-size: .87rem;
    font-weight: 650;
    color: var(--accent-strong);
    word-break: break-word;
}

.deflist__row > :last-child {
    margin-bottom: 0;
}

@media (max-width: 560px) {

    .deflist__row {
        grid-template-columns: 1fr;
    }
}