/* ============================================
   HACKER ACADEMY — CERTIFICATE STYLESHEET
   Premium Cyberpunk Certificate System
   Founded & Owned by Er. Priyanshu Sharma
   File: css/certificate.css
   Version: 1.0.0
   
   COMPONENTS:
   - Certificate Layout
   - Certificate Preview Card
   - Certificate Template Design
   - Certificate Details Section
   - Download/Share Actions
   - Certificate List Grid
   - Certificate Modal
   - Print Styles for Certificates
   - Responsive Certificate
============================================ */

/* ============================================
   1. CERTIFICATE LAYOUT
============================================ */
.certificate-layout {
    min-height: 100vh;
    background: var(--cyber-dark);
    position: relative;
    padding: 30px;
}

.certificate-layout::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(at 20% 30%, rgba(0, 255, 157, 0.06) 0%, transparent 50%),
        radial-gradient(at 80% 70%, rgba(0, 212, 255, 0.04) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.certificate-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* ============================================
   2. CERTIFICATE PREVIEW CARD
============================================ */
.certificate-preview-section {
    margin-bottom: 40px;
}

.certificate-preview-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.certificate-preview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    box-shadow: 0 0 20px var(--neon-green);
}

.certificate-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--glass-border);
}

.certificate-preview-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-transform: uppercase;
}

.certificate-preview-title i {
    color: var(--neon-green);
    font-size: 1.4rem;
}

.certificate-preview-actions {
    display: flex;
    gap: 12px;
}

/* ============================================
   3. CERTIFICATE TEMPLATE DESIGN
============================================ */
.certificate-template {
    aspect-ratio: 1.414/1; /* A4 landscape ratio */
    background: linear-gradient(135deg, #0a0a14 0%, #05050a 100%);
    border: 3px solid var(--neon-green);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 255, 157, 0.2), 0 0 40px rgba(0, 255, 157, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px;
    text-align: center;
}

.certificate-template::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 255, 157, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 157, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.5;
}

.certificate-template::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(0, 255, 157, 0.08), transparent 60%);
    pointer-events: none;
}

/* Certificate Corner Decorations */
.certificate-corner {
    position: absolute;
    width: 80px;
    height: 80px;
    border: 3px solid var(--neon-green);
    opacity: 0.6;
}

.certificate-corner.tl {
    top: 20px;
    left: 20px;
    border-right: none;
    border-bottom: none;
}

.certificate-corner.tr {
    top: 20px;
    right: 20px;
    border-left: none;
    border-bottom: none;
}

.certificate-corner.bl {
    bottom: 20px;
    left: 20px;
    border-right: none;
    border-top: none;
}

.certificate-corner.br {
    bottom: 20px;
    right: 20px;
    border-left: none;
    border-top: none;
}

/* Certificate Content */
.certificate-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.certificate-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 30px;
    justify-content: center;
}

.certificate-logo-icon {
    width: 60px;
    height: 60px;
    background: var(--cyber-black);
    border: 2px solid var(--neon-green);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neon-green);
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 900;
    box-shadow: 0 0 30px rgba(0, 255, 157, 0.4);
}

.certificate-logo-text {
    text-align: left;
}

.certificate-logo-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 2px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.certificate-logo-sub {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 2.5px;
    margin-top: 2px;
    text-transform: uppercase;
}

.certificate-heading {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 10px;
    text-transform: uppercase;
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 20px rgba(0, 255, 157, 0.3));
}

.certificate-subheading {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 30px;
}

.certificate-recipient {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    padding: 10px 30px;
    border-bottom: 2px solid var(--neon-green);
    display: inline-block;
}

.certificate-course {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--neon-blue);
    margin-bottom: 20px;
    line-height: 1.4;
}

.certificate-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto 30px;
}

.certificate-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
}

.certificate-detail-item {
    text-align: center;
}

.certificate-detail-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.certificate-detail-value {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.certificate-detail-value.date {
    color: var(--neon-green);
}

.certificate-signature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.certificate-signature-line {
    width: 150px;
    height: 2px;
    background: var(--neon-green);
    margin-bottom: 6px;
}

.certificate-signature-name {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.certificate-signature-title {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.certificate-id {
    position: absolute;
    bottom: 30px;
    right: 40px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 1.5px;
}

/* ============================================
   4. CERTIFICATE DETAILS SECTION
============================================ */
.certificate-details-section {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 30px;
    margin-bottom: 30px;
}

.certificate-details-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--glass-border);
}

.certificate-details-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-transform: uppercase;
}

.certificate-details-title i {
    color: var(--neon-green);
}

.certificate-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.certificate-info-item {
    padding: 20px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
}

.certificate-info-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.certificate-info-value {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.certificate-info-value.highlight {
    color: var(--neon-green);
    font-family: var(--font-display);
    font-size: 1.1rem;
    letter-spacing: 1px;
}

/* ============================================
   5. DOWNLOAD/SHARE ACTIONS
============================================ */
.certificate-actions-section {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 30px;
    text-align: center;
}

.certificate-actions-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-transform: uppercase;
}

.certificate-actions-title i {
    color: var(--neon-green);
}

.certificate-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.certificate-action-btn {
    padding: 16px 24px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.certificate-action-btn:hover {
    transform: translateY(-3px);
}

.certificate-action-btn.download:hover {
    color: var(--neon-green);
    border-color: var(--neon-green);
    background: rgba(0, 255, 157, 0.08);
    box-shadow: 0 0 20px rgba(0, 255, 157, 0.2);
}

.certificate-action-btn.share:hover {
    color: var(--neon-blue);
    border-color: var(--neon-blue);
    background: rgba(0, 212, 255, 0.08);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.certificate-action-btn.print:hover {
    color: var(--neon-purple);
    border-color: var(--neon-purple);
    background: rgba(181, 55, 242, 0.08);
    box-shadow: 0 0 20px rgba(181, 55, 242, 0.2);
}

.certificate-action-btn.linkedin:hover {
    color: #0077b5;
    border-color: #0077b5;
    background: rgba(0, 119, 181, 0.08);
    box-shadow: 0 0 20px rgba(0, 119, 181, 0.2);
}

.certificate-action-btn i {
    font-size: 1.1rem;
}

/* ============================================
   6. CERTIFICATE LIST GRID
============================================ */
.certificate-list-section {
    margin-top: 40px;
}

.certificate-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.certificate-list-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-transform: uppercase;
}

.certificate-list-title i {
    color: var(--neon-green);
}

.certificate-list-count {
    padding: 6px 14px;
    background: rgba(0, 255, 157, 0.08);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--neon-green);
    letter-spacing: 1.5px;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.certificate-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
}

.certificate-card:hover {
    transform: translateY(-6px);
    border-color: var(--neon-green);
    box-shadow: 0 15px 40px rgba(0, 255, 157, 0.2);
}

.certificate-card-preview {
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, rgba(0, 255, 157, 0.08), rgba(0, 212, 255, 0.04));
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--glass-border);
    overflow: hidden;
}

.certificate-card-preview::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 255, 157, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 157, 0.04) 1px, transparent 1px);
    background-size: 20px 20px;
}

.certificate-card-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cyber-black);
    font-size: 2rem;
    box-shadow: 0 0 30px rgba(0, 255, 157, 0.5);
    z-index: 2;
    position: relative;
}

.certificate-card-ribbon {
    position: absolute;
    top: 14px;
    right: -30px;
    background: var(--neon-green);
    color: var(--cyber-black);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    padding: 4px 40px;
    transform: rotate(45deg);
    text-transform: uppercase;
    box-shadow: 0 2px 10px rgba(0, 255, 157, 0.4);
}

.certificate-card-body {
    padding: 20px;
}

.certificate-card-title {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
    line-height: 1.3;
}

.certificate-card-course {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--neon-blue);
    letter-spacing: 1.5px;
    margin-bottom: 14px;
}

.certificate-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--glass-border);
}

.certificate-card-date {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.certificate-card-btn {
    padding: 6px 14px;
    background: transparent;
    border: 1px solid var(--neon-green);
    color: var(--neon-green);
    border-radius: 50px;
    font-family: var(--font-heading);
    font-size: 0.72rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
}

.certificate-card-btn:hover {
    background: var(--neon-green);
    color: var(--cyber-black);
    box-shadow: 0 0 15px rgba(0, 255, 157, 0.4);
}

/* ============================================
   7. CERTIFICATE MODAL
============================================ */
.certificate-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.certificate-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.certificate-modal {
    background: var(--cyber-gray);
    border: 1px solid rgba(0, 255, 157, 0.3);
    border-radius: var(--radius-xl);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 30px 80px rgba(0, 255, 157, 0.2);
    transform: scale(0.9) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
}

.certificate-modal-overlay.active .certificate-modal {
    transform: scale(1) translateY(0);
}

.certificate-modal::-webkit-scrollbar { width: 6px; }
.certificate-modal::-webkit-scrollbar-thumb {
    background: rgba(0, 255, 157, 0.3);
    border-radius: 6px;
}

.certificate-modal-header {
    padding: 24px 28px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: var(--cyber-gray);
    z-index: 2;
}

.certificate-modal-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.certificate-modal-title i {
    color: var(--neon-green);
}

.certificate-modal-close {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.certificate-modal-close:hover {
    background: var(--neon-red);
    color: white;
    border-color: var(--neon-red);
    transform: rotate(90deg);
}

.certificate-modal-body {
    padding: 28px;
}

.certificate-modal-footer {
    padding: 20px 28px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    position: sticky;
    bottom: 0;
    background: var(--cyber-gray);
}

/* ============================================
   8. EMPTY STATE
============================================ */
.certificate-empty-state {
    padding: 80px 40px;
    text-align: center;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px dashed var(--glass-border);
    border-radius: var(--radius-lg);
}

.certificate-empty-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 24px;
    background: rgba(0, 255, 157, 0.08);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neon-green);
    font-size: 2.5rem;
}

.certificate-empty-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.certificate-empty-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    max-width: 500px;
    margin: 0 auto 24px;
}

/* ============================================
   9. RESPONSIVE CERTIFICATE
============================================ */
@media (max-width: 1200px) {
    .certificate-template {
        padding: 50px 40px;
    }
    
    .certificate-heading {
        font-size: 2.2rem;
    }
    
    .certificate-recipient {
        font-size: 1.8rem;
    }
}

@media (max-width: 992px) {
    .certificate-layout {
        padding: 20px;
    }
    
    .certificate-preview-card {
        padding: 30px;
    }
    
    .certificate-template {
        padding: 40px 30px;
    }
    
    .certificate-heading {
        font-size: 1.8rem;
    }
    
    .certificate-subheading {
        font-size: 0.75rem;
    }
    
    .certificate-recipient {
        font-size: 1.5rem;
    }
    
    .certificate-course {
        font-size: 1.1rem;
    }
    
    .certificate-description {
        font-size: 0.88rem;
    }
    
    .certificate-details {
        flex-direction: column;
        gap: 24px;
    }
    
    .certificate-corner {
        width: 60px;
        height: 60px;
    }
    
    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .certificate-layout {
        padding: 16px;
    }
    
    .certificate-preview-card {
        padding: 24px 20px;
    }
    
    .certificate-preview-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .certificate-preview-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .certificate-preview-actions .btn {
        width: 100%;
    }
    
    .certificate-template {
        padding: 30px 20px;
    }
    
    .certificate-logo {
        flex-direction: column;
        gap: 10px;
    }
    
    .certificate-logo-text {
        text-align: center;
    }
    
    .certificate-heading {
        font-size: 1.5rem;
    }
    
    .certificate-subheading {
        font-size: 0.68rem;
        letter-spacing: 2px;
    }
    
    .certificate-recipient {
        font-size: 1.3rem;
        padding: 8px 20px;
    }
    
    .certificate-course {
        font-size: 1rem;
    }
    
    .certificate-description {
        font-size: 0.85rem;
    }
    
    .certificate-details {
        gap: 20px;
    }
    
    .certificate-detail-item {
        width: 100%;
    }
    
    .certificate-id {
        position: static;
        margin-top: 20px;
        text-align: center;
    }
    
    .certificate-corner {
        width: 50px;
        height: 50px;
        border-width: 2px;
    }
    
    .certificate-corner.tl,
    .certificate-corner.tr {
        top: 10px;
    }
    
    .certificate-corner.bl,
    .certificate-corner.br {
        bottom: 10px;
    }
    
    .certificate-corner.tl,
    .certificate-corner.bl {
        left: 10px;
    }
    
    .certificate-corner.tr,
    .certificate-corner.br {
        right: 10px;
    }
    
    .certificate-info-grid {
        grid-template-columns: 1fr;
    }
    
    .certificate-actions-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
    }
    
    .certificate-modal {
        max-width: 95%;
    }
    
    .certificate-modal-header,
    .certificate-modal-body,
    .certificate-modal-footer {
        padding: 20px;
    }
    
    .certificate-modal-footer {
        flex-direction: column;
    }
    
    .certificate-modal-footer .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .certificate-layout {
        padding: 12px;
    }
    
    .certificate-preview-card {
        padding: 20px 16px;
    }
    
    .certificate-template {
        padding: 24px 16px;
    }
    
    .certificate-logo-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .certificate-logo-title {
        font-size: 1.1rem;
    }
    
    .certificate-logo-sub {
        font-size: 0.58rem;
    }
    
    .certificate-heading {
        font-size: 1.2rem;
    }
    
    .certificate-subheading {
        font-size: 0.62rem;
    }
    
    .certificate-recipient {
        font-size: 1.1rem;
    }
    
    .certificate-course {
        font-size: 0.92rem;
    }
    
    .certificate-description {
        font-size: 0.8rem;
    }
    
    .certificate-signature-line {
        width: 120px;
    }
    
    .certificate-signature-name {
        font-size: 0.82rem;
    }
    
    .certificate-signature-title {
        font-size: 0.62rem;
    }
    
    .certificate-actions-grid {
        grid-template-columns: 1fr;
    }
    
    .certificate-action-btn {
        padding: 14px 20px;
        font-size: 0.82rem;
    }
    
    .certificate-card-preview {
        aspect-ratio: 16/9;
    }
    
    .certificate-card-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .certificate-card-body {
        padding: 16px;
    }
    
    .certificate-card-title {
        font-size: 0.95rem;
    }
    
    .certificate-empty-state {
        padding: 60px 24px;
    }
    
    .certificate-empty-icon {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }
    
    .certificate-empty-title {
        font-size: 1.2rem;
    }
    
    .certificate-empty-text {
        font-size: 0.88rem;
    }
}

/* ============================================
   10. PRINT STYLES FOR CERTIFICATES
============================================ */
@media print {
    @page {
        size: A4 landscape;
        margin: 0;
    }
    
    body {
        background: white !important;
    }
    
    .certificate-layout {
        padding: 0;
        background: white !important;
    }
    
    .certificate-layout::before {
        display: none;
    }
    
    .certificate-preview-section,
    .certificate-details-section,
    .certificate-actions-section,
    .certificate-list-section {
        display: none !important;
    }
    
    .certificate-template {
        page-break-inside: avoid;
        box-shadow: none !important;
        border: 3px solid #000 !important;
        background: white !important;
        color: black !important;
    }
    
    .certificate-template::before,
    .certificate-template::after {
        display: none;
    }
    
    .certificate-corner {
        border-color: #000 !important;
    }
    
    .certificate-logo-icon {
        border-color: #000 !important;
        color: #000 !important;
        box-shadow: none !important;
    }
    
    .certificate-logo-title,
    .certificate-heading,
    .certificate-recipient,
    .certificate-course,
    .certificate-description,
    .certificate-detail-value,
    .certificate-signature-name {
        color: #000 !important;
        -webkit-text-fill-color: #000 !important;
        background: none !important;
        filter: none !important;
    }
    
    .certificate-subheading,
    .certificate-detail-label,
    .certificate-signature-title,
    .certificate-id {
        color: #666 !important;
    }
    
    .certificate-detail-value.date {
        color: #000 !important;
    }
    
    .certificate-signature-line {
        background: #000 !important;
    }
    
    /* Hide all other elements when printing certificate */
    .ha-nav,
    .ha-footer,
    .back-to-top,
    .cursor-glow,
    .ha-loader {
        display: none !important;
    }
}

/* ============================================
   11. REDUCED MOTION
============================================ */
@media (prefers-reduced-motion: reduce) {
    .certificate-card,
    .certificate-action-btn,
    .certificate-card-btn {
        transition: none !important;
    }
    
    .certificate-card:hover,
    .certificate-action-btn:hover {
        transform: none !important;
    }
}

/* ============================================
   END OF CERTIFICATE STYLESHEET
============================================ */