/* ============================================================
   Portfolio Page CSS — extends MarkRenown design system
   ============================================================ */

/* Active nav link */
.main-menu ul li a.active-nav {
    color: var(--accent-color);
}

/* ─── HERO ─────────────────────────────────────────────────── */
.portfolio-hero {
    position: relative;
    background: var(--bg-color) url('../images/hero-bg-logo-shape.png') no-repeat;
    background-position: left -19% center;
    background-size: 35% auto;
    padding: 120px 0 80px;
    overflow: hidden;
    text-align: center;
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(191,247,71,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.portfolio-hero-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 50px;
}

.portfolio-hero-box .section-title {
    margin-bottom: 0;
    max-width: 900px;
    margin: 0 auto;
}

.portfolio-hero-box .section-title h1 {
    font-size: 55px;
    line-height: 1.4em;
    margin-bottom: 0;
}

.portfolio-hero-box .section-title p {
    font-size: 18px;
    max-width: 650px;
    margin: 20px auto 0;
}

/* Stats */
.portfolio-hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    border: 1px solid var(--divider-color);
    background: var(--secondary-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 100px;
    padding: 20px 50px;
    flex-wrap: wrap;
}

.portfolio-hero-stat-item {
    text-align: center;
    padding: 0 40px;
}

.portfolio-hero-stat-item h2 {
    font-size: 26px;
    line-height: 1.2em;
    margin-bottom: 4px;
}

.portfolio-hero-stat-item p {
    font-size: 13px;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.portfolio-hero-stat-divider {
    width: 1px;
    height: 50px;
    background: var(--divider-color);
}

/* CTA buttons */
.portfolio-hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.portfolio-cta-secondary {
    background: var(--accent-color) !important;
    color: var(--bg-color) !important;
}

.portfolio-cta-secondary::before {
    background-color: var(--bg-color) !important;
    background-image: url('../images/arrow-black.svg') !important;
}

.portfolio-cta-secondary:hover {
    color: var(--white-color) !important;
}

.portfolio-cta-secondary::after {
    background: var(--bg-color) !important;
}

.portfolio-cta-secondary:hover:after {
    background-color: var(--bg-color) !important;
}

/* ─── FILTER TABS ───────────────────────────────────────────── */
.our-portfolio {
    padding: 80px 0 100px;
}

.portfolio-filter-tabs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.portfolio-filter-btn {
    display: inline-block;
    font-family: var(--default-font);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-color);
    background: var(--secondary-color);
    border: 1px solid var(--divider-color);
    border-radius: 100px;
    padding: 12px 28px;
    cursor: pointer;
    transition: all 0.35s ease-in-out;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.portfolio-filter-btn:hover {
    color: var(--bg-color);
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.portfolio-filter-btn.active {
    color: var(--bg-color);
    background: var(--accent-color);
    border-color: var(--accent-color);
}

/* ─── PORTFOLIO GRID ─────────────────────────────────────────── */
.portfolio-grid {
    display: flex;
    flex-wrap: wrap;
}

.portfolio-grid-item {
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.portfolio-grid-item.hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
    height: 0;
    padding: 0;
    overflow: hidden;
    margin: 0;
}

/* ─── PORTFOLIO CARD ─────────────────────────────────────────── */
.portfolio-card {
    border: 1px solid var(--divider-color);
    background: var(--secondary-color) url('../images/project-item-bg-shape.png') no-repeat;
    background-position: top left;
    background-size: auto;
    backdrop-filter: blur(100px);
    -webkit-backdrop-filter: blur(100px);
    border-radius: 30px;
    height: calc(100% - 30px);
    margin-bottom: 30px;
    padding: 15px;
    cursor: none;
    transition: all 0.4s ease-in-out;
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-6px);
    border-color: var(--dark-divider-color);
    box-shadow: 0 20px 60px rgba(191, 247, 71, 0.06);
}

/* Image area */
.portfolio-card-image-wrap {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
}

.portfolio-card-img-skeleton {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--secondary-color) 25%, rgba(255,255,255,0.04) 50%, var(--secondary-color) 75%);
    background-size: 200% 100%;
    animation: portfolioSkeletonShimmer 1.5s infinite;
    border-radius: 20px;
    z-index: 1;
    transition: opacity 0.3s ease;
}

.portfolio-card-img-skeleton.loaded {
    opacity: 0;
    pointer-events: none;
}

@keyframes portfolioSkeletonShimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.portfolio-card-img {
    width: 100%;
    aspect-ratio: 1 / 0.633;
    object-fit: cover;
    border-radius: 20px;
    display: block;
    transition: transform 0.6s ease-in-out;
    position: relative;
    z-index: 0;
}

.portfolio-card:hover .portfolio-card-img {
    transform: scale(1.06);
}

/* Badge */
.portfolio-card-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 2;
    display: inline-block;
    border: 1px solid var(--dark-divider-color);
    background: var(--secondary-color) url('../images/icon-sub-heading.svg') no-repeat;
    background-position: left 14px center;
    background-size: 14px auto;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 100px;
    padding: 8px 14px 8px 36px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--white-color);
}

/* Card body */
.portfolio-card-body {
    padding: 28px 28px 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 12px;
}

.portfolio-card-name {
    font-size: 16px;
    line-height: 1.6em;
    margin: 0;
}

.portfolio-card-name a {
    color: inherit;
    transition: color 0.3s ease-in-out;
}

.portfolio-card:hover .portfolio-card-name a {
    color: var(--accent-color);
}

.portfolio-card-desc {
    font-size: 14px;
    line-height: 1.6em;
    margin: 0;
    color: var(--text-color);
}

.portfolio-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.portfolio-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    color: var(--primary-color);
    border: 1px solid var(--dark-divider-color);
    background: var(--secondary-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 100px;
    padding: 5px 14px;
    transition: all 0.3s ease-in-out;
}

.portfolio-card:hover .portfolio-tag {
    border-color: rgba(191, 247, 71, 0.25);
}

/* Card footer row */
.portfolio-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--divider-color);
    margin-top: auto;
    padding-top: 20px;
}

.portfolio-card-details-btn {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-color);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.3s ease-in-out;
}

.portfolio-card-details-btn i {
    font-size: 12px;
    transition: transform 0.3s ease-in-out;
}

.portfolio-card-details-btn:hover {
    color: var(--accent-color);
}

.portfolio-card-details-btn:hover i {
    transform: rotate(45deg);
}

.portfolio-card-visit-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--bg-color);
    background: var(--accent-color);
    border-radius: 100px;
    padding: 8px 18px;
    transition: all 0.3s ease-in-out;
    text-transform: capitalize;
}

.portfolio-card-visit-btn i {
    font-size: 11px;
    transition: transform 0.3s ease-in-out;
}

.portfolio-card-visit-btn:hover {
    background: var(--primary-color);
    color: var(--bg-color);
}

.portfolio-card-visit-btn:hover i {
    transform: rotate(45deg);
}

/* ─── MODAL ──────────────────────────────────────────────────── */
.portfolio-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

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

.portfolio-modal-container {
    position: relative;
    background: var(--bg-color);
    border: 1px solid var(--dark-divider-color);
    border-radius: 30px;
    width: 100%;
    max-width: 960px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(30px) scale(0.97);
    transition: transform 0.4s ease;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-color) transparent;
}

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

.portfolio-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--dark-divider-color);
    background: var(--secondary-color);
    color: var(--primary-color);
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
}

.portfolio-modal-close:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
}

.portfolio-modal-inner {
    display: grid;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .portfolio-modal-inner {
        grid-template-columns: 1fr 1fr;
    }
}

.portfolio-modal-image-wrap {
    position: relative;
    overflow: hidden;
    border-radius: 30px 0 0 30px;
}

@media (max-width: 767px) {
    .portfolio-modal-image-wrap {
        border-radius: 30px 30px 0 0;
    }
}

.portfolio-modal-img-skeleton {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--secondary-color) 25%, rgba(255,255,255,0.04) 50%, var(--secondary-color) 75%);
    background-size: 200% 100%;
    animation: portfolioSkeletonShimmer 1.5s infinite;
    z-index: 1;
    transition: opacity 0.3s ease;
}

.portfolio-modal-img-skeleton.loaded {
    opacity: 0;
    pointer-events: none;
}

.portfolio-modal-img {
    width: 100%;
    height: 100%;
    min-height: 300px;
    object-fit: cover;
    display: block;
}

.portfolio-modal-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 2;
    display: inline-block;
    background: var(--accent-color);
    color: var(--bg-color);
    border-radius: 100px;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.portfolio-modal-content {
    padding: 50px 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.portfolio-modal-title {
    font-size: 22px;
    line-height: 1.5em;
    margin: 0;
}

.portfolio-modal-desc {
    font-size: 15px;
    line-height: 1.7em;
    margin: 0;
}

.portfolio-modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.portfolio-modal-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    border-top: 1px solid var(--divider-color);
    padding-top: 16px;
}

.portfolio-modal-meta-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-color);
}

.portfolio-modal-meta-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-color);
    border: 1px solid rgba(191,247,71,0.3);
    border-radius: 100px;
    padding: 4px 14px;
}

.portfolio-modal-visit {
    align-self: flex-start;
    margin-right: 50px;
}

.portfolio-modal-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-top: 1px solid var(--divider-color);
    padding-top: 20px;
    margin-top: auto;
}

.portfolio-modal-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--default-font);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    background: none;
    border: 1px solid var(--divider-color);
    border-radius: 100px;
    padding: 10px 20px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
}

.portfolio-modal-nav-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--bg-color);
}

/* ─── CTA SECTION ────────────────────────────────────────────── */
.portfolio-cta-section {
    margin: 0 auto 60px;
    padding: 100px 0;
}

.portfolio-cta-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    text-align: center;
}

.portfolio-cta-box .section-title {
    margin-bottom: 0;
}

.portfolio-cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

/* ─── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1199px) {
    .portfolio-hero-box .section-title h1 {
        font-size: 44px;
    }
}

@media (max-width: 991px) {
    .portfolio-hero {
        padding: 100px 0 60px;
    }

    .portfolio-hero-stats {
        border-radius: 20px;
        padding: 20px 30px;
    }

    .portfolio-hero-stat-item {
        padding: 10px 20px;
    }

    .portfolio-hero-stat-divider {
        display: none;
    }

    .portfolio-modal-image-wrap {
        border-radius: 30px 30px 0 0;
    }

    .portfolio-modal-content {
        padding: 30px 25px;
    }
}

@media (max-width: 767px) {
    .portfolio-hero-box .section-title h1 {
        font-size: 34px;
    }

    .portfolio-hero-cta {
        gap: 40px;
    }

    .portfolio-hero-stats {
        flex-direction: column;
        border-radius: 20px;
    }

    .portfolio-hero-stat-item {
        width: 100%;
        padding: 12px 0;
        border-bottom: 1px solid var(--divider-color);
    }

    .portfolio-hero-stat-item:last-child {
        border-bottom: none;
    }

    .portfolio-cta-buttons {
        gap: 40px;
    }

    .portfolio-filter-tabs {
        gap: 8px;
    }

    .portfolio-filter-btn {
        font-size: 13px;
        padding: 10px 20px;
    }
}

@media (max-width: 480px) {
    .portfolio-hero-box .section-title h1 {
        font-size: 28px;
    }

    .portfolio-modal-container {
        border-radius: 20px;
    }

    .portfolio-modal-content {
        padding: 25px 20px;
    }

    .portfolio-modal-title {
        font-size: 18px;
    }
}