/* ============================================
   Certificates Page Styles
   Modern & Contemporary Design
   ============================================ */

:root {
    --cert-primary: #6B3FA0;
    --cert-primary-light: #8B5FC0;
    --cert-primary-dark: #4A2D70;
    --cert-secondary: #1A1A2E;
    --cert-accent: #E94560;
    --cert-success: #25D366;
    --cert-gradient: linear-gradient(135deg, #6B3FA0 0%, #E94560 100%);
    --cert-gradient-subtle: linear-gradient(135deg, rgba(107, 63, 160, 0.05) 0%, rgba(233, 69, 96, 0.05) 100%);
    --cert-gradient-hero: linear-gradient(160deg, #1A1A2E 0%, #2D1B4E 40%, #6B3FA0 100%);
    --cert-glass: rgba(255, 255, 255, 0.08);
    --cert-glass-border: rgba(255, 255, 255, 0.15);
    --cert-shadow-sm: 0 2px 8px rgba(107, 63, 160, 0.08);
    --cert-shadow-md: 0 8px 24px rgba(107, 63, 160, 0.12);
    --cert-shadow-lg: 0 16px 48px rgba(107, 63, 160, 0.16);
    --cert-shadow-xl: 0 24px 64px rgba(107, 63, 160, 0.2);
    --cert-radius-md: 12px;
    --cert-radius-lg: 16px;
    --cert-radius-xl: 24px;
    --cert-radius-2xl: 32px;
    --cert-radius-full: 9999px;
    --cert-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --cert-transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.certificates-page {
    overflow-x: hidden;
}

    .certificates-page * {
        box-sizing: border-box;
    }

/* ---------- Hero Section ---------- */
.certificates-hero {
    min-height: 60vh;
    background: var(--cert-gradient-hero);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 6rem 0 4rem;
}

    .certificates-hero::before {
        content: '';
        position: absolute;
        top: -50%;
        right: -30%;
        width: 80%;
        height: 200%;
        background: radial-gradient(ellipse, rgba(107, 63, 160, 0.3) 0%, transparent 70%);
        animation: certGlow 8s ease-in-out infinite;
    }

@keyframes certGlow {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.5;
    }

    50% {
        transform: translate(30px, -20px) scale(1.1);
        opacity: 0.8;
    }
}

.certificates-hero__grid {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.certificates-hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    margin-top: 2rem;
}

.certificates-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--cert-glass);
    border: 1px solid var(--cert-glass-border);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.25rem;
    border-radius: var(--cert-radius-full);
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
    font-weight: 500;
    animation: certFadeInDown 0.6s ease-out;
}

    .certificates-hero__badge .dot {
        width: 8px;
        height: 8px;
        background: var(--cert-success);
        border-radius: 50%;
        animation: certPulse 2s ease-in-out infinite;
    }

@keyframes certPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.5);
    }
}

.certificates-hero__title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: white;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    animation: certFadeInUp 0.6s ease-out 0.1s both;
}

    .certificates-hero__title .highlight {
        background: linear-gradient(135deg, #FFD700, #FFA500, #FF6B6B);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

.certificates-hero__subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: certFadeInUp 0.6s ease-out 0.2s both;
}

/* Stats */
.certificates-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
    animation: certFadeInUp 0.6s ease-out 0.3s both;
}

.certificates-stats__item {
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--cert-glass);
    border: 1px solid var(--cert-glass-border);
    backdrop-filter: blur(10px);
    border-radius: var(--cert-radius-lg);
    transition: var(--cert-transition);
}

    .certificates-stats__item:hover {
        background: rgba(255, 255, 255, 0.12);
        transform: translateY(-4px);
    }

.certificates-stats__number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.certificates-stats__label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

/* ---------- Filter Section ---------- */
.certificates-filter {
    padding: 2.5rem 0;
    background: #F8F7FC;
    position: relative;
}

    .certificates-filter::before {
        content: '';
        position: absolute;
        top: -1px;
        left: 0;
        right: 0;
        height: 60px;
        background: linear-gradient(to bottom, rgba(26, 26, 46, 0.03), transparent);
    }

.certificates-filter__nav {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.certificates-filter__btn {
    padding: 0.75rem 1.5rem;
    background: white;
    color: var(--cert-primary);
    border: 2px solid #E5E7EB;
    border-radius: var(--cert-radius-xl);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    text-decoration: none;
    transition: var(--cert-transition);
}

    .certificates-filter__btn:hover {
        border-color: var(--cert-primary);
        transform: translateY(-2px);
        box-shadow: var(--cert-shadow-sm);
    }

.certificates-filter__btn--active {
    background: var(--cert-gradient);
    color: white;
    border-color: transparent;
}

/* ---------- Grid Section ---------- */
.certificates-grid-section {
    padding: 5rem 0;
    background: white;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

/* ---------- Certificate Card ---------- */
.cert-card {
    background: white;
    border-radius: var(--cert-radius-xl);
    border: 1px solid #F3F4F6;
    overflow: hidden;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

    .cert-card::before {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: var(--cert-radius-xl);
        padding: 2px;
        background: var(--cert-gradient);
        mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
        -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
        mask-composite: exclude;
        -webkit-mask-composite: xor;
        opacity: 0;
        transition: var(--cert-transition);
    }

    .cert-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--cert-shadow-xl);
    }

        .cert-card:hover::before {
            opacity: 1;
        }

    .cert-card.is-visible {
        opacity: 1;
        transform: translateY(0);
    }

    .cert-card:nth-child(1) {
        transition-delay: 0.05s;
    }

    .cert-card:nth-child(2) {
        transition-delay: 0.1s;
    }

    .cert-card:nth-child(3) {
        transition-delay: 0.15s;
    }

/* Card Header */
.cert-card__header {
    background: var(--cert-gradient-subtle);
    padding: 2.5rem 1.5rem 1.5rem;
    text-align: center;
    position: relative;
}

.cert-card__badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--cert-success);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--cert-radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

[dir="rtl"] .cert-card__badge {
    right: auto;
    left: 1rem;
}

.cert-card__img {
    max-height: 220px;
    width: 100%;
    object-fit: contain;
    border-radius: var(--cert-radius-md);
    box-shadow: var(--cert-shadow-sm);
    transition: var(--cert-transition-slow);
}

.cert-card:hover .cert-card__img {
    transform: scale(1.02);
}

.cert-card__icon {
    width: 80px;
    height: 80px;
    background: var(--cert-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: var(--cert-shadow-md);
}

    .cert-card__icon i {
        font-size: 2rem;
        color: white;
    }

/* Card Body */
.cert-card__body {
    padding: 1.5rem 2rem 2rem;
}

.cert-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--cert-secondary);
    text-align: center;
    margin-bottom: 0.5rem;
}

.cert-card__org {
    color: var(--cert-primary);
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 600;
    font-size: 0.9375rem;
}

.cert-card__desc {
    color: #6B7280;
    text-align: center;
    line-height: 1.6;
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
    min-height: 3rem;
}

/* Dates */
.cert-card__dates {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.8125rem;
    color: #9CA3AF;
    flex-wrap: wrap;
}

.cert-card__date {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

    .cert-card__date i {
        color: var(--cert-primary-light);
    }

/* Actions */
.cert-card__actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

.cert-card__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--cert-radius-lg);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: var(--cert-transition);
}

.cert-card__btn--primary {
    background: var(--cert-gradient);
    color: white;
}

    .cert-card__btn--primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(107, 63, 160, 0.35);
    }

.cert-card__btn--outline {
    background: white;
    color: var(--cert-primary);
    border: 2px solid var(--cert-primary);
}

    .cert-card__btn--outline:hover {
        background: rgba(107, 63, 160, 0.05);
        transform: translateY(-2px);
        box-shadow: var(--cert-shadow-sm);
    }

/* ---------- Pagination ---------- */
.certificates-pagination {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid #F3F4F6;
}

.certificates-pagination__info {
    text-align: center;
    color: #6B7280;
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

.certificates-pagination__nav {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.certificates-pagination__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: var(--cert-radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--cert-primary);
    background: white;
    border: 2px solid #E5E7EB;
    transition: var(--cert-transition);
}

    .certificates-pagination__link:hover {
        border-color: var(--cert-primary);
        transform: translateY(-2px);
        box-shadow: var(--cert-shadow-sm);
    }

.certificates-pagination__link--active {
    background: var(--cert-gradient);
    color: white;
    border-color: transparent;
}

    .certificates-pagination__link--active:hover {
        color: white;
        box-shadow: 0 8px 24px rgba(107, 63, 160, 0.4);
    }

/* ---------- Empty State ---------- */
.certificates-empty {
    text-align: center;
    padding: 5rem 2rem;
    grid-column: 1 / -1;
}

.certificates-empty__icon {
    font-size: 4rem;
    color: #E5E7EB;
    margin-bottom: 1.5rem;
}

.certificates-empty__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--cert-secondary);
    margin-bottom: 0.75rem;
}

.certificates-empty__desc {
    color: #6B7280;
}

/* ---------- CTA Section ---------- */
.certificates-cta {
    padding: 5rem 0;
    background: var(--cert-gradient-hero);
    position: relative;
    overflow: hidden;
}

    .certificates-cta::before {
        content: '';
        position: absolute;
        inset: 0;
        background-image: radial-gradient(circle at 20% 50%, rgba(107, 63, 160, 0.3) 0%, transparent 50%), radial-gradient(circle at 80% 50%, rgba(233, 69, 96, 0.2) 0%, transparent 50%);
    }

.certificates-cta__content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.certificates-cta__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--cert-glass);
    border: 1px solid var(--cert-glass-border);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.25rem;
    border-radius: var(--cert-radius-full);
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
    font-weight: 500;
}

    .certificates-cta__badge .dot {
        width: 8px;
        height: 8px;
        background: #FFD700;
        border-radius: 50%;
    }

.certificates-cta__title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.certificates-cta__desc {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

/* Verify Form */
.certificates-verify-box {
    display: flex;
    gap: 0.75rem;
    background: white;
    border-radius: var(--cert-radius-2xl);
    padding: 0.5rem;
    box-shadow: var(--cert-shadow-xl);
    max-width: 500px;
    margin: 0 auto;
}

    .certificates-verify-box input {
        flex: 1;
        border: none;
        background: transparent;
        padding: 1rem;
        outline: none;
        font-size: 1rem;
        font-family: inherit;
        color: var(--cert-secondary);
    }

        .certificates-verify-box input::placeholder {
            color: #9CA3AF;
        }

    .certificates-verify-box button {
        background: var(--cert-gradient);
        color: white;
        border: none;
        padding: 1rem 2rem;
        border-radius: var(--cert-radius-xl);
        font-weight: 700;
        cursor: pointer;
        transition: var(--cert-transition);
        font-family: inherit;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

        .certificates-verify-box button:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(107, 63, 160, 0.4);
        }

/* ---------- Animations ---------- */
@keyframes certFadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes certFadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .certificates-hero {
        min-height: 50vh;
        padding: 5rem 0 3rem;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .certificates-grid-section {
        padding: 3rem 0;
    }

    .cert-card__dates {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }

    .certificates-verify-box {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .certificates-hero {
        min-height: 45vh;
        padding: 4rem 0 2.5rem;
    }

    .certificates-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }

    .certificates-stats__number {
        font-size: 1.5rem;
    }

    .cert-card__body {
        padding: 1.25rem;
    }

    .certificates-pagination__link {
        width: 40px;
        height: 40px;
        font-size: 0.875rem;
    }
}
.cert-card {
    cursor: pointer;
}

    .cert-card:focus-visible {
        outline: 3px solid var(--cert-primary);
        outline-offset: 2px;
    }

/* Details button is now visual only */
.cert-card__btn--primary {
    pointer-events: none;
}