/* --- Global & Canvas Setup --- */
body {
    margin: 0;
    padding: 0;
    background-color: #050505;
    color: #e0e0e0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow-x: hidden;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

#site-header {
    position: relative;
    z-index: 10;
}

main.wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    position: relative;
    z-index: 1;
}

/* --- Page Header --- */
.page-head {
    margin-bottom: 4rem;
    text-align: center;
}

.page-head .eyebrow {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #5b9dff;
    margin-bottom: 1rem;
    font-weight: 600;
}

.page-head h1 {
    font-size: 3rem;
    margin: 0 0 1rem 0;
    color: #ffffff;
    letter-spacing: -1px;
}

.page-head p {
    font-size: 1.1rem;
    color: #a0a0a0;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* --- Certificate Grid --- */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-bottom: 3rem;
}

/* --- Certificate Card --- */
.cert-card {
    background: rgba(20, 20, 25, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(10px);

    /* Animation Initial State */
    opacity: 0;
    transform: translateY(30px);
}

.cert-card.in-view {
    opacity: 1;
    transform: translateY(0);
}

.cert-card:hover {
    transform: translateY(-5px);
    border-color: #5b9dff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

/* --- Image Wrapper --- */
.cert-img-wrap {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    background: #111;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.cert-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Ensures image fills the area without stretching */
    transition: transform 0.5s ease;
}

.cert-card:hover .cert-img-wrap img {
    transform: scale(1.05);
}

/* --- Card Body --- */
.cert-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.cert-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}

.cert-issuer {
    font-size: 0.9rem;
    color: #5b9dff;
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.cert-date {
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 1rem;
}

.cert-desc {
    font-size: 0.9rem;
    color: #b0b0b0;
    line-height: 1.5;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.cert-actions {
    margin-top: auto;
}

/* --- Buttons (Shared with projects.css but redefined for safety) --- */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: #5b9dff;
    color: #fff;
}

.btn-primary:hover {
    background: #4a8bc9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.btn-code {
    background: transparent;
    color: #5b9dff;
    border: 1px solid #5b9dff;
    font-size: 0.85rem;
    padding: 8px 16px;
}

.btn-code:hover {
    background: rgba(91, 157, 255, 0.1);
}

/* --- Footer & Back Link --- */
.back-cta {
    text-align: center;
    margin-top: 3rem;
}

.back-cta a {
    color: #888;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.back-cta a:hover {
    color: #fff;
}

footer {
    text-align: center;
    padding: 2rem;
    color: #666;
    font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 2rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .page-head h1 {
        font-size: 2.2rem;
    }
    .cert-grid {
        grid-template-columns: 1fr;
    }
}


/* Space Background Setup */
body {
    background-color: #050505; /* Deep space black */
    overflow-x: hidden;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1; /* Stays behind content */
    pointer-events: none; /* Allows clicks to pass through */
}

/* Optional: Add a subtle glow to the canvas container if needed */
#bg-canvas {
    filter: brightness(1.1);
}