.api-page {
    --oc-blue: #2d22de;
    --oc-purple: #9931fc;
    --oc-ink: #1f2937;
    --oc-muted: #64748b;

    max-width: 1140px;
    margin: 0 auto;
    /* The bottom value clears the fixed "Back to OC Home Page" footer. */
    padding: 0 1.25rem 4.5rem;
}

/* Hero */

.api-hero {
    margin: 2rem 0;
    text-align: center;
}

.api-hero__logo {
    max-height: 84px;
    margin-bottom: 1rem;
}

.api-hero__title {
    margin: 0;
    font-size: 1.85rem;
    font-weight: 600;
    color: #2c3e50;
}

/* Card grid: one column on a phone, two from tablet up with the featured
   card spanning the full width. */

.api-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.api-link {
    display: block;
    height: 100%;
    color: inherit;
    text-decoration: none;
}

.api-link:hover,
.api-link:focus-visible {
    color: inherit;
}

.api-link:focus-visible {
    outline: none;
}

.api-link:focus-visible .api-card {
    border-color: var(--oc-purple);
    box-shadow: 0 0 0 3px rgba(153, 49, 252, 0.25);
}

/* Cards */

.api-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    height: 100%;
    padding: 1.25rem;
    border: 1px solid rgba(15, 23, 42, 0.09);
    border-radius: 16px;
    background: #fff;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.api-card__icon {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(153, 49, 252, 0.1);
    color: var(--oc-purple);
}

.api-card__icon svg {
    width: 23px;
    height: 23px;
}

.api-card__body {
    min-width: 0;
}

.api-card__title {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0 0 0.35rem;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--oc-ink);
}

.api-card__text {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.55;
    color: var(--oc-muted);
}

/* The arrow is an affordance for cursors; it earns no room on a phone. */
.api-card__arrow {
    display: none;
    flex: 0 0 auto;
    align-self: center;
    margin-left: auto;
    color: rgba(15, 23, 42, 0.25);
    transition: transform 0.25s ease, color 0.25s ease;
}

.api-card__arrow svg {
    width: 22px;
    height: 22px;
}

/* Featured card: the newest API gets the brand gradient. */

.api-card--featured {
    border-color: rgba(153, 49, 252, 0.3);
    background-image: linear-gradient(135deg, rgba(45, 34, 222, 0.05), rgba(153, 49, 252, 0.06));
}

.api-card--featured .api-card__icon {
    background: linear-gradient(135deg, var(--oc-blue), var(--oc-purple));
    color: #fff;
    box-shadow: 0 10px 20px -10px rgba(153, 49, 252, 0.9);
}

/* Badge */

.api-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4em;
    padding: 0.3em 0.7em;
    border: 1px solid rgba(22, 163, 74, 0.3);
    border-radius: 50rem;
    background: rgba(34, 197, 94, 0.12);
    color: #15803d;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.api-badge__dot {
    width: 0.45em;
    height: 0.45em;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 0.18em rgba(34, 197, 94, 0.25);
}

@media (prefers-reduced-motion: no-preference) {
    .api-badge__dot {
        animation: api-badge-pulse 2.4s ease-in-out infinite;
    }
}

@keyframes api-badge-pulse {
    0%, 100% { box-shadow: 0 0 0 0.18em rgba(34, 197, 94, 0.25); }
    50% { box-shadow: 0 0 0 0.4em rgba(34, 197, 94, 0); }
}

/* Hover belongs to devices that have a pointer: on touch it sticks after a tap. */
@media (hover: hover) {
    .api-card:hover {
        transform: translateY(-4px);
        border-color: rgba(153, 49, 252, 0.45);
        box-shadow: 0 18px 35px -18px rgba(45, 34, 222, 0.45);
    }

    .api-card:hover .api-card__arrow {
        transform: translateX(3px);
        color: var(--oc-purple);
    }
}

/* >= 768px: two columns, roomier spacing and type. */
@media (min-width: 768px) {
    .api-page {
        padding: 0 1.5rem 4.5rem;
    }

    .api-hero {
        margin: 3rem 0;
    }

    .api-hero__logo {
        max-height: 120px;
        margin-bottom: 1.5rem;
    }

    .api-hero__title {
        font-size: 2.5rem;
    }

    .api-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.5rem;
    }

    .api-cards__featured {
        grid-column: 1 / -1;
    }

    .api-card {
        gap: 1.25rem;
        padding: 1.75rem;
        border-radius: 18px;
    }

    .api-card__icon {
        width: 52px;
        height: 52px;
        border-radius: 14px;
    }

    .api-card__icon svg {
        width: 26px;
        height: 26px;
    }

    .api-card__title {
        gap: 0.6rem;
        margin-bottom: 0.4rem;
        font-size: 1.35rem;
    }

    .api-card__arrow {
        display: block;
    }

    .api-card--featured .api-card__icon {
        width: 60px;
        height: 60px;
        border-radius: 16px;
    }

    .api-card--featured .api-card__icon svg {
        width: 30px;
        height: 30px;
    }

    .api-card--featured .api-card__title {
        font-size: 1.6rem;
    }
}

@media (min-width: 992px) {
    .api-hero__title {
        font-size: 3rem;
    }
}