/* ============================================
   Cases Grid Styles
   ============================================ */

.cases-grid {
    --grid-desktop: 4;
    --grid-tablet: 3;
    --grid-mobile: 2;
    --grid-gap-desktop: 30px;
    --grid-gap-tablet: 20px;
    --grid-gap-mobile: 15px;
    --grid-item-height-desktop: 400px;
    --grid-item-height-tablet: 350px;
    --grid-item-height-mobile: 300px;
}

.cases-grid__inner {
    display: grid;
    grid-template-columns: repeat(var(--grid-desktop), 1fr);
    gap: var(--grid-gap-desktop);
    transition: all 0.3s ease;
}

.cases-grid__item--initial {
    animation: fadeInUp 0.6s ease backwards;
}

.cases-grid__item--initial:nth-child(1) { animation-delay: 0.05s; }
.cases-grid__item--initial:nth-child(2) { animation-delay: 0.1s; }
.cases-grid__item--initial:nth-child(3) { animation-delay: 0.15s; }
.cases-grid__item--initial:nth-child(4) { animation-delay: 0.2s; }
.cases-grid__item--initial:nth-child(5) { animation-delay: 0.25s; }
.cases-grid__item--initial:nth-child(6) { animation-delay: 0.3s; }

.cases-grid__item--new {
    opacity: 0;
    transform: translateY(30px);
}

.cases-grid__item--animate-in {
    transition: opacity 0.5s ease, transform 0.5s ease;
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.cases-grid__item--animate-out {
    display: none !important;
}

.cases-grid__item--hidden {
    display: none;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.single-cases-one {
    position: relative;
    display: block;
    height: 100%;
}

.single-cases-one__img {
    position: relative;
    display: block;
    overflow: hidden;
    border-radius: 10px;
    z-index: 1;
    height: var(--grid-item-height-desktop);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
}

@media (min-width: 992px) {
    .single-cases-one:hover .single-cases-one__img {
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    }

    .single-cases-one__img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .single-cases-one:hover .single-cases-one__img img {
        transform: scale(1.08);
    }

    .single-cases-one__img:before {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        transition: opacity 0.5s ease;
        background: rgba(var(--thm-secondary-rgb), 0.15);
        opacity: 0;
        z-index: 1;
        content: "";
    }

    .single-cases-one:hover .single-cases-one__img:before {
        opacity: 1;
    }

    .single-cases-one__img .overlay-content {
        position: absolute;
        top: 48px;
        left: 48px;
        bottom: 48px;
        right: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        border-radius: 6px;
        background: rgba(21, 21, 21, 0.60);
        backdrop-filter: blur(6px);
        padding: 0px 10px 0px;
        opacity: 0;
        transform: perspective(400px) rotateX(15deg) translateY(10px);
        transform-origin: center;
        transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 3;
    }

    .single-cases-one:hover .single-cases-one__img .overlay-content {
        opacity: 1;
        transform: perspective(400px) rotateX(0deg) translateY(0);
    }

    .single-cases-one__img .overlay-content h3 {
        font-size: 24px;
        line-height: 34px;
        font-weight: 700;
        margin-bottom: 20px;
        opacity: 0;
        transform: translateY(10px);
        transition: all 0.4s ease 0.1s;
    }

    .single-cases-one:hover .single-cases-one__img .overlay-content h3 {
        opacity: 1;
        transform: translateY(0);
    }

    .single-cases-one__img .overlay-content h3 a {
        color: var(--thm-white);
        transition: color 0.3s ease;
    }

    .single-cases-one__img .overlay-content h3 a:hover {
        color: var(--thm-secondary);
    }

    .single-cases-one__img .overlay-content p {
        color: var(--thm-white);
        font-size: 14px;
        line-height: 28px;
        font-weight: 500;
        opacity: 0;
        transform: translateY(10px);
        transition: all 0.4s ease 0.2s;
    }

    .single-cases-one:hover .single-cases-one__img .overlay-content p {
        opacity: 1;
        transform: translateY(0);
    }

    .single-cases-one__img .overlay-one-btn {
        position: relative;
        display: inline-block;
        line-height: 0;
        padding-top: 32px;
        opacity: 0;
        transform: translateY(10px);
        transition: all 0.4s ease 0.3s;
    }

    .single-cases-one:hover .single-cases-one__img .overlay-one-btn {
        opacity: 1;
        transform: translateY(0);
    }

    .single-cases-one__img .overlay-one-btn a {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        width: 55px;
        height: 55px;
        border-radius: 12px;
        background-color: var(--thm-secondary);
        transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .single-cases-one__img .overlay-one-btn:hover a {
        background-color: var(--thm-white);
        transform: scale(1.1) rotate(360deg);
    }

    .single-cases-one__img .overlay-one-btn a span {
        color: var(--thm-black);
        font-size: 20px;
        transition: all 0.3s ease;
    }
}

@media (max-width: 991px) {
    .single-cases-one__img {
        height: auto;
        box-shadow: none;
        border-radius: 12px;
        background: #fff;
        box-shadow: 0 3px 15px rgba(0,0,0,0.06);
    }

    .single-cases-one__img img {
        width: 100%;
        height: var(--grid-item-height-mobile);
        object-fit: cover;
        border-radius: 12px 12px 0 0;
    }

    .single-cases-one:hover .single-cases-one__img img {
        transform: none;
    }

    .single-cases-one__img:before {
        display: none;
    }

    .single-cases-one__img .overlay-content {
        position: static;
        background: none;
        backdrop-filter: none;
        padding: 18px 20px;
        opacity: 1;
        transform: none;
        border-radius: 0;
        align-items: flex-start;
        text-align: right;
    }

    .single-cases-one:hover .single-cases-one__img .overlay-content {
        transform: none;
    }

    .single-cases-one__img .overlay-content h3 {
        font-size: 14px;
        line-height: 1.4;
        margin-bottom: 8px;
        opacity: 1;
        transform: none;
        color: #1a1a1a;
    }

    .single-cases-one__img .overlay-content h3 a {
        color: #1a1a1a;
    }

    .single-cases-one__img .overlay-content p {
        font-size: 13px;
        line-height: 1.6;
        margin-bottom: 10px;
        opacity: 1;
        transform: none;
        color: #666;
    }

    .single-cases-one__img .overlay-one-btn {
        opacity: 1;
        transform: none;
        padding-top: 0;
        width: 100%;
    }

    .single-cases-one__img .overlay-one-btn a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        border-radius: 12px;
        background-color: var(--thm-secondary);
        transition: all 0.3s ease;
    }

    .single-cases-one__img .overlay-one-btn a:hover {
        background-color: var(--thm-black);
        transform: scale(1.05);
    }

    .single-cases-one__img .overlay-one-btn a span {
        color: var(--thm-black);
        font-size: 18px;
    }
}

.cases-grid__load-more {
    margin-top: 50px;
    text-align: center;
}

.cases-grid__btn {
    position: relative;
    display: inline-block;
    padding: 16px 50px;
    font-size: 16px;
    font-weight: 600;
    color: var(--thm-black);
    background-color: var(--thm-secondary);
    border: 2px solid var(--thm-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
    overflow: hidden;
}

.cases-grid__btn:hover {
    background-color: transparent;
    color: var(--thm-secondary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.cases-grid__btn--loading {
    opacity: 0.7;
    pointer-events: none;
}

.cases-grid__btn--loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 10px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.cases-grid__btn--reset {
    background-color: #6c757d;
    border-color: #6c757d;
}

.cases-grid__btn--reset:hover {
    background-color: transparent;
    color: #6c757d;
}

.cases-grid__btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1200px) {
    .cases-grid__inner {
        grid-template-columns: repeat(var(--grid-tablet), 1fr);
        gap: var(--grid-gap-tablet);
    }
}

@media (max-width: 768px) {
    .cases-grid__inner {
        grid-template-columns: repeat(var(--grid-mobile), 1fr);
        gap: var(--grid-gap-mobile);
    }
    
    .cases-grid__btn {
        padding: 14px 40px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .cases-grid__btn {
        padding: 12px 30px;
        font-size: 14px;
        width: 100%;
    }
}