/* ═══════════════════════════════════════════
   KOVA PROYECTOS — Frontend Styles
   ═══════════════════════════════════════════ */

/* CSS Variables fallback (defined in theme, duplicated here for independence) */
:root {
    --kv-gold: #c9a14c;
    --kv-gold-hover: #b08a3e;
    --kv-gold-glow: rgba(201,161,76,0.3);
    --kv-black: #0a0a0a;
    --kv-white: #ffffff;
    --kv-gray: #999999;
    --kv-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    --kv-ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --kv-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── FILTER BUTTONS ─── */
.kv-pf-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 40px 20px 30px;
    background: var(--kv-black);
}

.kv-pf-filter {
    background: transparent;
    border: 1px solid rgba(201,161,76,0.25);
    color: var(--kv-gray);
    padding: 10px 24px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s var(--kv-ease);
    font-family: var(--kv-font);
}

.kv-pf-filter.active,
.kv-pf-filter:hover {
    border-color: var(--kv-gold);
    color: var(--kv-gold);
    background: rgba(201,161,76,0.08);
}

/* ─── PORTFOLIO GRID ─── */
.kv-portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    width: 100%;
}

.kv-pf-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    margin: 0;
    padding: 0;
    line-height: 0;
    aspect-ratio: 3/2;
}

.kv-pf-tall {
    grid-row: span 1 !important;
    aspect-ratio: 3/2;
}

.kv-pf-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s var(--kv-ease-out), filter 0.5s ease;
    display: block;
    margin: 0;
    padding: 0;
    position: absolute;
    top: 0;
    left: 0;
}

.kv-pf-item:hover img {
    transform: scale(1.08);
    filter: brightness(0.7);
}

.kv-pf-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
    padding: 28px;
    background: linear-gradient(to top, rgba(10,10,10,0.85) 0%, rgba(10,10,10,0.0) 50%);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 2;
}

.kv-pf-item:hover .kv-pf-overlay {
    opacity: 1;
}

.kv-pf-title {
    color: var(--kv-white);
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
    transform: translateY(20px);
    transition: transform 0.5s var(--kv-ease-out);
    font-family: var(--kv-font);
    line-height: 1.3;
}

.kv-pf-item:hover .kv-pf-title {
    transform: translateY(0);
}

.kv-pf-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    transform: translateY(20px);
    transition: transform 0.5s var(--kv-ease-out);
}

.kv-pf-item:hover .kv-pf-card {
    transform: translateY(0);
}

.kv-pf-card .kv-pf-title {
    transform: none;
}

.kv-pf-type {
    color: var(--kv-gold);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-family: var(--kv-font);
    line-height: 1;
}

.kv-pf-icon {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--kv-gold);
    color: var(--kv-gold);
    font-size: 22px;
    font-weight: 200;
    border-radius: 0;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.4s ease, transform 0.5s var(--kv-ease-out), background 0.3s ease;
    z-index: 3;
}

.kv-pf-item:hover .kv-pf-icon {
    opacity: 1;
    transform: translateY(0);
}

.kv-pf-icon:hover {
    background: var(--kv-gold);
    color: var(--kv-black);
}

.kv-pf-item a,
.kv-pf-item .kv-pf-link {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
    position: absolute;
    top: 0;
    left: 0;
}

/* ─── MODAL OVERLAY ─── */
.kv-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 100000;
    background: rgba(10,10,10,0.97);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    padding: 24px 0;
    overflow: hidden;
}

.kv-modal-overlay.kv-modal-open {
    opacity: 1;
    visibility: visible;
}

.kv-modal-close {
    position: fixed;
    top: 24px;
    right: 28px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 100002;
    background: none;
    border: none;
    color: var(--kv-gold);
    font-size: 28px;
    font-weight: 200;
    line-height: 1;
    transition: transform 0.3s ease, color 0.3s ease;
    font-family: var(--kv-font);
}

.kv-modal-close:hover {
    transform: scale(1.15);
    color: var(--kv-white);
}

.kv-modal-content {
    max-width: 1100px;
    width: 100%;
    max-height: calc(100vh - 48px);
    display: flex;
    flex-direction: row;
    position: relative;
    transform: translateY(30px);
    opacity: 0;
    transition: transform 0.4s var(--kv-ease-out), opacity 0.4s ease;
    margin: auto;
    min-height: 0;
}

.kv-modal-overlay.kv-modal-open .kv-modal-content {
    transform: translateY(0);
    opacity: 1;
}

/* ─── MODAL IMAGE AREA ─── */
.kv-modal-image {
    width: 60%;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    border-left: 2px solid var(--kv-gold);
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
    height: calc(100vh - 100px);
    max-height: 520px;
}

.kv-modal-image > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.35s ease;
    position: absolute;
    top: 0;
    left: 0;
}

.kv-modal-image img.kv-img-fade {
    opacity: 0;
}

.kv-modal-counter {
    position: absolute;
    bottom: 64px;
    left: 20px;
    color: var(--kv-gold);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 3px;
    font-family: var(--kv-font);
    z-index: 5;
}

/* ─── GALLERY ARROWS (inside image area) ─── */
.kv-gallery-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    background: rgba(10,10,10,0.6);
    border: 1px solid rgba(201,161,76,0.4);
    border-radius: 50%;
    color: var(--kv-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 6;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    padding: 0;
}

.kv-gallery-arrow svg {
    display: block;
}

.kv-gallery-arrow:hover {
    background: var(--kv-gold);
    color: var(--kv-black);
    border-color: var(--kv-gold);
}

.kv-gallery-prev { left: 16px; }
.kv-gallery-next { right: 16px; }

/* ─── THUMBNAIL STRIP ─── */
.kv-modal-thumbs {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    gap: 4px;
    padding: 10px 12px;
    background: rgba(10,10,10,0.85);
    overflow-x: auto;
    z-index: 5;
    scrollbar-width: none;
}

.kv-modal-thumbs::-webkit-scrollbar {
    display: none;
}

.kv-modal-thumb {
    width: 60px;
    height: 42px;
    flex-shrink: 0;
    border: 2px solid transparent;
    cursor: pointer;
    opacity: 0.45;
    transition: opacity 0.3s ease, border-color 0.3s ease;
    overflow: hidden;
    position: relative;
}

.kv-modal-thumb.active,
.kv-modal-thumb:hover {
    opacity: 1;
    border-color: var(--kv-gold);
}

.kv-modal-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    position: static;
}

.kv-modal-thumb-ba::after {
    content: "A/D";
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10,10,10,0.6);
    color: var(--kv-gold);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1px;
    font-family: var(--kv-font);
}

/* ─── BEFORE / AFTER COMPARATOR ─── */
.kv-ba-container {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 3;
}

.kv-ba-before,
.kv-ba-after {
    position: absolute;
    inset: 0;
}

.kv-ba-before img,
.kv-ba-after img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
}

.kv-ba-after {
    clip-path: inset(0 0 0 50%);
}

.kv-ba-slider {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background: var(--kv-gold);
    cursor: ew-resize;
    z-index: 6;
    transform: translateX(-50%);
}

.kv-ba-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--kv-gold);
    box-shadow: 0 2px 16px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.kv-ba-handle::before,
.kv-ba-handle::after {
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
}

.kv-ba-handle::before {
    border-width: 6px 8px 6px 0;
    border-color: transparent var(--kv-black) transparent transparent;
    left: 8px;
}

.kv-ba-handle::after {
    border-width: 6px 0 6px 8px;
    border-color: transparent transparent transparent var(--kv-black);
    right: 8px;
}

.kv-ba-label {
    position: absolute;
    top: 20px;
    color: var(--kv-white);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 3px;
    padding: 6px 14px;
    background: rgba(10,10,10,0.7);
    z-index: 4;
    font-family: var(--kv-font);
}

.kv-ba-label-before { left: 20px; }
.kv-ba-label-after { right: 20px; }

/* ─── MODAL DETAILS PANEL ─── */
.kv-modal-details {
    width: 40%;
    background: #111;
    border: 1px solid rgba(201,161,76,0.15);
    border-left: none;
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    overflow-y: auto;
    max-height: calc(100vh - 48px);
}

.kv-modal-label {
    color: var(--kv-gold);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 10px;
    font-family: var(--kv-font);
}

.kv-modal-title {
    color: var(--kv-white);
    font-size: 22px;
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin: 0 0 14px;
    font-family: var(--kv-font);
    line-height: 1.3;
}

.kv-modal-divider {
    width: 40px;
    height: 1px;
    background: var(--kv-gold);
    margin-bottom: 14px;
}

.kv-modal-desc {
    color: var(--kv-gray);
    font-size: 13px;
    font-weight: 300;
    line-height: 1.7;
    margin: 0 0 18px;
    font-family: var(--kv-font);
}

.kv-modal-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 16px;
    margin-bottom: 20px;
    padding-top: 14px;
    border-top: 1px solid rgba(201,161,76,0.12);
}

.kv-modal-meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.kv-modal-meta-label {
    color: var(--kv-gold);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-family: var(--kv-font);
}

.kv-modal-meta-value {
    color: var(--kv-white);
    font-size: 14px;
    font-weight: 300;
    font-family: var(--kv-font);
}

.kv-modal-cta {
    display: block;
    width: 100%;
    padding: 14px 20px;
    background: transparent;
    border: 1px solid var(--kv-gold);
    color: var(--kv-gold);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 4px;
    text-transform: uppercase;
    text-decoration: none;
    text-align: center;
    transition: all 0.4s var(--kv-ease);
    font-family: var(--kv-font);
    cursor: pointer;
    margin-bottom: 16px;
}

.kv-modal-cta:hover {
    background: var(--kv-gold);
    color: var(--kv-black);
    box-shadow: 0 8px 30px rgba(201,161,76,0.25);
    transform: translateY(-2px);
}

.kv-modal-phone {
    text-align: center;
    margin-top: 4px;
    color: var(--kv-gray);
    font-size: 13px;
    font-family: var(--kv-font);
}

.kv-modal-phone a {
    color: var(--kv-gold);
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 2px;
    font-family: var(--kv-font);
    text-decoration: none;
    transition: color 0.3s ease;
}

.kv-modal-phone a:hover {
    color: var(--kv-white);
}

/* ─── PROJECT NAVIGATION (viewport edges) ─── */
.kv-modal-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 100002;
    background: transparent;
    border: 1px solid rgba(201,161,76,0.4);
    border-radius: 50%;
    color: var(--kv-gold);
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
    padding: 0;
}

.kv-modal-nav svg {
    display: block;
}

.kv-modal-nav:hover {
    background: var(--kv-gold);
    color: var(--kv-black);
    border-color: var(--kv-gold);
    transform: translateY(-50%) scale(1.08);
}

.kv-modal-prev { left: 24px; }
.kv-modal-next { right: 24px; }

/* Gallery section — seamless grid */
.kv-portfolio-gallery {
    padding-left: 0 !important;
    padding-right: 0 !important;
}

/* ═══════════════════════════════════════════
   RESPONSIVE — Tablet
   ═══════════════════════════════════════════ */
@media (max-width: 1024px) {
    .kv-portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .kv-pf-item,
    .kv-pf-tall {
        aspect-ratio: 3/2;
        grid-row: span 1 !important;
    }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — Modal tablet
   ═══════════════════════════════════════════ */
@media (max-width: 900px) {
    .kv-modal-content {
        flex-direction: column;
        max-width: 600px;
        max-height: calc(100vh - 32px);
        overflow-y: auto;
    }

    .kv-modal-image {
        width: 100%;
        height: 45vh;
        max-height: 320px;
        border-left: none;
        border-top: 2px solid var(--kv-gold);
        flex-shrink: 0;
    }

    .kv-modal-details {
        width: 100%;
        padding: 24px 20px;
        border-left: 1px solid rgba(201,161,76,0.15);
        max-height: none;
        overflow-y: visible;
    }

    .kv-modal-nav {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .kv-modal-prev { left: 8px; }
    .kv-modal-next { right: 8px; }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — Mobile
   ═══════════════════════════════════════════ */
@media (max-width: 767px) {
    .kv-portfolio-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 0 4px;
    }

    .kv-pf-item,
    .kv-pf-tall {
        aspect-ratio: 3/2;
        grid-row: span 1 !important;
    }

    .kv-pf-overlay {
        padding: 14px 16px;
        opacity: 1;
        background: linear-gradient(to top, rgba(10,10,10,0.8) 0%, rgba(10,10,10,0.0) 50%);
        align-items: flex-end;
    }

    .kv-pf-title {
        font-size: 13px;
        transform: translateY(0);
        line-height: 1.3;
    }

    .kv-pf-type {
        font-size: 10px !important;
    }

    .kv-pf-card {
        gap: 3px;
        transform: translateY(0);
    }

    .kv-pf-icon {
        display: none;
    }

    .kv-modal-content {
        max-width: 100%;
        margin: 50px 12px 20px;
        border-radius: 10px;
        overflow: hidden;
    }

    .kv-modal-image {
        min-height: 220px;
    }

    .kv-modal-title {
        font-size: 20px;
        letter-spacing: 2px;
    }

    .kv-modal-details {
        padding: 24px 24px;
    }

    .kv-modal-meta {
        grid-template-columns: 1fr 1fr;
        gap: 12px 16px;
    }

    .kv-modal-desc {
        font-size: 14px;
        margin-bottom: 16px;
        color: #ccc;
        line-height: 1.75;
    }

    .kv-modal-meta-label {
        font-size: 11px;
    }

    .kv-modal-meta-value {
        font-size: 14px;
        color: #ddd;
    }

    .kv-modal-phone {
        font-size: 14px;
        color: #bbb;
    }

    .kv-modal-close {
        top: 12px;
        right: 12px;
        width: 40px;
        height: 40px;
        font-size: 22px;
    }

    .kv-modal-cta {
        padding: 14px 16px;
        font-size: 11px;
        letter-spacing: 3px;
    }

    .kv-modal-nav {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }

    .kv-modal-prev { left: 4px; }
    .kv-modal-next { right: 4px; }

    .kv-gallery-arrow {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    .kv-gallery-prev { left: 8px; }
    .kv-gallery-next { right: 8px; }

    .kv-modal-thumbs {
        padding: 6px 8px;
    }

    .kv-modal-thumb {
        width: 48px;
        height: 34px;
    }

    .kv-pf-filters {
        padding: 24px 12px 20px;
        gap: 6px;
    }

    .kv-pf-filter {
        padding: 8px 16px;
        font-size: 11px;
        letter-spacing: 2px;
    }

    .kv-ba-handle {
        width: 36px;
        height: 36px;
    }

    .kv-ba-label {
        font-size: 9px;
        padding: 4px 10px;
    }
}