/* Certificate Section Styles */
.certificate {
    padding-top: 2rem;
}

.certificate-section {
    position: relative;
    padding: 0 1.5rem 2.5rem;
}

.certificate-provider-grid {
    width: min(860px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 0.9rem;
}

.certificate-provider-button {
    min-width: 0;
    min-height: 132px;
    padding: 1rem 0.7rem;
    display: grid;
    grid-template-rows: 52px auto auto;
    place-items: center;
    gap: 0.4rem;
    color: var(--text-color);
    border: 1px solid rgba(var(--accent-rgb), 0.2);
    border-radius: 16px;
    background: rgba(var(--surface-deep-rgb), 0.68);
    box-shadow: inset 0 1px 0 rgba(var(--text-rgb), 0.06);
    cursor: pointer;
    appearance: none;
    transition: border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.certificate-provider-button:hover {
    border-color: rgba(var(--accent-rgb), 0.5);
    background: rgba(var(--accent-rgb), 0.1);
    box-shadow: inset 0 1px 0 rgba(var(--text-rgb), 0.1), 0 12px 30px rgba(var(--shadow-rgb), 0.14);
}

.certificate-provider-button:focus-visible {
    outline: 2px solid var(--secondary-color);
    outline-offset: 4px;
}

.certificate-provider-button .certificate-provider-icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    color: var(--secondary-color);
    border: 1px solid rgba(var(--accent-rgb), 0.24);
    border-radius: 14px;
    background: rgba(var(--accent-rgb), 0.08);
}

.certificate-provider-icon img {
    width: 29px;
    height: 29px;
    object-fit: contain;
}

.certificate-provider-codelab img {
    width: 44px;
    height: 44px;
    border-radius: 8px;
}

.certificate-provider-icon i {
    font-size: 1.45rem;
}

.certificate-provider-name {
    max-width: 100%;
    font-family: var(--font-heading);
    font-size: 0.92rem;
    font-weight: 700;
    line-height: 1.2;
    overflow-wrap: anywhere;
}

.certificate-provider-count {
    color: rgba(var(--text-rgb), 0.58);
    font-size: 0.72rem;
    font-weight: 600;
}

.certificate-dialog {
    --certificate-dialog-entry-y: -6px;
    position: fixed;
    inset: auto;
    top: 16px;
    left: 16px;
    width: min(760px, calc(100% - 2rem));
    max-height: min(80dvh, 720px);
    margin: 0;
    padding: 0;
    color: var(--text-color);
    border: 1px solid rgba(var(--accent-rgb), 0.34);
    border-radius: 20px;
    background: linear-gradient(145deg, rgba(var(--surface-deep-rgb), 0.82), rgba(var(--background-rgb), 0.7));
    box-shadow: 0 24px 70px rgba(var(--shadow-rgb), 0.4), inset 0 1px 0 rgba(var(--text-rgb), 0.09);
    overflow: hidden;
    -webkit-backdrop-filter: blur(22px) saturate(135%);
    backdrop-filter: blur(22px) saturate(135%);
}

.certificate-dialog[data-placement="above"] {
    --certificate-dialog-entry-y: 6px;
}

.certificate-dialog::backdrop {
    background: rgba(var(--background-rgb), 0.42);
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
}

.certificate-dialog[open]::backdrop {
    animation: certificate-backdrop-enter 200ms ease-out both;
}

html:has(.certificate-dialog[open]),
body:has(.certificate-dialog[open]) {
    overflow: hidden;
}

.certificate-dialog-panel {
    max-height: min(80dvh, 720px);
    padding: 1.5rem;
    overflow-y: auto;
}

.certificate-dialog[open] .certificate-dialog-panel {
    animation: certificate-dialog-enter 260ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.certificate-dialog-header {
    padding: 0 0 1.2rem;
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr) auto;
    align-items: center;
    gap: 1rem;
}

.certificate-dialog-header > .certificate-provider-icon {
    width: 64px;
    height: 64px;
    display: grid;
    place-items: center;
    color: var(--secondary-color);
    border: 1px solid rgba(var(--accent-rgb), 0.28);
    border-radius: 16px;
    background: rgba(var(--accent-rgb), 0.1);
}

.certificate-dialog-header .certificate-provider-icon img {
    width: 35px;
    height: 35px;
}

.certificate-dialog-header .certificate-provider-codelab img {
    width: 44px;
    height: 44px;
}

.certificate-dialog-copy {
    min-width: 0;
}

.certificate-dialog-kicker {
    margin: 0 0 0.3rem;
    color: var(--secondary-color);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.certificate-dialog-title {
    margin: 0;
    color: var(--text-color);
    font-size: clamp(1.35rem, 3vw, 1.9rem);
    font-weight: 750;
    line-height: 1.15;
}

.certificate-dialog-count {
    margin: 0.35rem 0 0;
    color: rgba(var(--text-rgb), 0.64);
    font-size: 0.86rem;
    font-weight: 600;
}

.certificate-dialog-close {
    min-width: 68px;
    min-height: 44px;
    padding: 0 0.9rem;
    color: var(--text-color);
    border: 1px solid rgba(var(--accent-rgb), 0.24);
    border-radius: 999px;
    background: transparent;
    font: inherit;
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
}

.certificate-dialog-close:hover,
.certificate-dialog-close:focus-visible {
    border-color: rgba(var(--accent-rgb), 0.58);
    background: rgba(var(--accent-rgb), 0.1);
    outline: none;
}

.certificate-dialog-close:focus-visible {
    box-shadow: 0 0 0 2px var(--surface-deep-color), 0 0 0 4px var(--secondary-color);
}

.certificate-detail-list {
    margin: 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid rgba(var(--accent-rgb), 0.16);
}

.certificate-detail-item {
    min-height: 72px;
    padding: 0.8rem 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid rgba(var(--accent-rgb), 0.14);
}

.certificate-item-copy {
    min-width: 0;
}

.certificate-name {
    margin: 0;
    color: var(--text-color);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 650;
    line-height: 1.3;
    overflow-wrap: anywhere;
}

.certificate-item-meta {
    margin: 0.25rem 0 0;
    color: rgba(var(--text-rgb), 0.62);
    font-size: 0.82rem;
}

.certificate-item-year::before {
    content: " / ";
    color: rgba(var(--accent-rgb), 0.7);
}

@keyframes certificate-dialog-enter {
    from {
        opacity: 0;
        transform: translateY(var(--certificate-dialog-entry-y)) scale(0.985);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

@keyframes certificate-backdrop-enter {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@media (prefers-reduced-motion: reduce) {
    .certificate-dialog[open] .certificate-dialog-panel,
    .certificate-dialog[open]::backdrop {
        animation: none;
    }
}

@media (max-width: 768px) {
    .certificate-section {
        padding: 0 1rem 2rem;
    }

    .certificate-provider-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 480px) {
    .certificate-section {
        padding: 0 0.8rem 1.5rem;
    }

    .certificate-provider-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.7rem;
    }

    .certificate-provider-button {
        min-height: 122px;
    }

    .certificate-dialog {
        width: calc(100% - 2rem);
        max-height: calc(100dvh - 2rem);
        border-radius: 16px;
    }

    .certificate-dialog-panel {
        max-height: calc(100dvh - 2rem);
        padding: 1.1rem;
    }

    .certificate-dialog-header {
        grid-template-columns: 54px minmax(0, 1fr) auto;
        gap: 0.75rem;
    }

    .certificate-dialog-header > .certificate-provider-icon {
        width: 54px;
        height: 54px;
        border-radius: 13px;
    }

    .certificate-dialog-close {
        min-width: 58px;
        padding: 0 0.65rem;
    }

    .certificate-detail-item {
        padding: 0.9rem 0;
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }

}