/* ==========================================================================
   KRAFTFLOOR – Floor Tile Page Loader & Transitions
   ========================================================================== */

body.kf-has-floor-loader.kf-loading,
html.kf-loading {
    overflow: hidden;
    padding-right: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
}

/* Ẩn menu mobile Blocksy khi loader đang chạy */
body.kf-loading .ct-panel,
body.kf-loading #offcanvas {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

body.kf-loading[data-panel] {
    padding-right: 0 !important;
}

.kf-floor-loader {
    position: fixed;
    inset: 0;
    z-index: 2147483646;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    background: linear-gradient(160deg, #2a2622 0%, #3d3832 45%, #2e2a26 100%);
    pointer-events: all;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.45s ease, visibility 0.45s ease;
    isolation: isolate;
}

.kf-floor-loader.is-done {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.kf-floor-loader__inner {
    position: relative;
    width: min(92vw, 520px);
    aspect-ratio: 4 / 3;
    margin-left: auto;
    margin-right: auto;
    flex-shrink: 0;
}

/* ---- Plank grid ---- */
.kf-floor-loader__grid {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: repeat(5, 1fr);
    gap: 6px;
    padding: 8px;
    perspective: 900px;
    transform-style: preserve-3d;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.kf-floor-plank {
    --plank-bg: #c8b89a;
    --plank-highlight: rgba(255, 255, 255, 0.45);
    --plank-shadow: rgba(120, 95, 60, 0.25);
    --plank-vein: rgba(197, 160, 89, 0.22);
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background:
        linear-gradient(118deg, transparent 38%, var(--plank-vein) 38%, var(--plank-vein) 40%, transparent 40%),
        linear-gradient(180deg, var(--plank-highlight) 0%, transparent 28%, var(--plank-shadow) 100%),
        linear-gradient(90deg, rgba(255,255,255,0.2) 0%, transparent 15%, transparent 85%, rgba(0,0,0,0.06) 100%),
        var(--plank-bg);
    box-shadow:
        inset 0 2px 0 rgba(255, 255, 255, 0.55),
        inset 0 -1px 0 rgba(0, 0, 0, 0.08),
        0 6px 16px rgba(0, 0, 0, 0.2),
        0 2px 4px rgba(0, 0, 0, 0.12);
    transform: translateY(120%) rotateX(62deg) scale(0.72);
    opacity: 0;
    will-change: transform, opacity;
}

/* Vân gỗ / đá */
.kf-floor-plank::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(
            92deg,
            transparent,
            transparent 14px,
            rgba(255, 255, 255, 0.06) 14px,
            rgba(255, 255, 255, 0.06) 15px
        ),
        repeating-linear-gradient(
            88deg,
            transparent,
            transparent 32px,
            rgba(0, 0, 0, 0.03) 32px,
            rgba(0, 0, 0, 0.03) 33px
        );
    pointer-events: none;
}

.kf-floor-plank::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.18) 0%,
        transparent 45%,
        rgba(255, 255, 255, 0.08) 100%
    );
    pointer-events: none;
}

/* Tông sàn sáng – gỗ sồi */
.kf-floor-plank--oak {
    --plank-bg: linear-gradient(145deg, #e8dcc8 0%, #d4c4a8 40%, #c9b896 100%);
    --plank-vein: rgba(180, 140, 90, 0.18);
}

/* Gỗ óc chó sáng */
.kf-floor-plank--walnut {
    --plank-bg: linear-gradient(145deg, #d9c4a8 0%, #c4a882 45%, #b8956a 100%);
    --plank-vein: rgba(139, 100, 60, 0.15);
}

/* Đá thạch anh sáng */
.kf-floor-plank--quartz {
    --plank-bg: linear-gradient(155deg, #f5f2ed 0%, #ebe6de 35%, #ddd6cb 100%);
    --plank-vein: rgba(197, 160, 89, 0.28);
    --plank-highlight: rgba(255, 255, 255, 0.7);
}

/* Đá marble kem */
.kf-floor-plank--marble {
    --plank-bg: linear-gradient(160deg, #faf8f5 0%, #ede8e0 50%, #e2dbd0 100%);
    --plank-vein: rgba(180, 170, 155, 0.35);
    --plank-highlight: rgba(255, 255, 255, 0.85);
}

/* Gỗ tự nhiên ấm */
.kf-floor-plank--natural {
    --plank-bg: linear-gradient(150deg, #e2d5c0 0%, #d1bf9f 50%, #c5ad88 100%);
    --plank-vein: rgba(160, 120, 70, 0.12);
}

/* Vàng champagne – nhấn thương hiệu */
.kf-floor-plank--gold {
    --plank-bg: linear-gradient(145deg, #f0e4c8 0%, #e5d4a8 40%, #d4bc82 100%);
    --plank-vein: rgba(197, 160, 89, 0.35);
    --plank-highlight: rgba(255, 248, 220, 0.6);
}

/* Wide planks – desktop only */
@media (min-width: 769px) {
    .kf-floor-plank:nth-child(6n+1),
    .kf-floor-plank:nth-child(6n+4) {
        grid-column: span 2;
    }
}

/* ---- Animation phases ---- */
.kf-floor-loader.is-assembling .kf-floor-plank {
    animation: kfPlankSnapIn 0.85s cubic-bezier(0.22, 1, 0.36, 1) both;
    animation-delay: calc(var(--delay, 0) * 1s);
}

.kf-floor-loader.is-transition-in .kf-floor-plank {
    transform: translateY(0) rotateX(0) scale(1);
    opacity: 1;
    animation: kfPlankSnapIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
    animation-delay: calc(var(--delay, 0) * 0.65s);
}

.kf-floor-loader.is-revealing .kf-floor-plank {
    animation: kfPlankPeelAway 0.7s cubic-bezier(0.55, 0, 0.85, 0.36) both;
    animation-delay: calc(var(--delay, 0) * 0.55s);
}

.kf-floor-loader.is-covering .kf-floor-plank {
    transform: translateY(0) rotateX(0) scale(1);
    opacity: 1;
    animation: kfPlankCoverIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) both;
    animation-delay: calc(var(--delay, 0) * 0.35s);
}

/* Đã phủ sẵn – không animate, chờ trang load phía sau */
.kf-floor-loader.is-covered-instant .kf-floor-plank,
.kf-floor-loader.is-arrived .kf-floor-plank,
html.kf-transition-arrival .kf-floor-plank {
    opacity: 1;
    transform: translateY(0) rotateX(0) scale(1);
    animation: none !important;
}

html.kf-transition-arrival .kf-floor-loader {
    opacity: 1;
    visibility: visible;
}

html.kf-transition-arrival .kf-floor-loader__brand {
    opacity: 1;
    transform: none;
}

html.kf-transition-arrival .kf-floor-loader__shine {
    opacity: 1;
}

.kf-floor-loader.is-covered-instant .kf-floor-loader__brand,
.kf-floor-loader.is-arrived .kf-floor-loader__brand {
    opacity: 1;
    transform: none;
}

.kf-floor-loader.is-covered-instant .kf-floor-loader__shine,
.kf-floor-loader.is-arrived .kf-floor-loader__shine {
    opacity: 1;
}

.kf-floor-loader.is-arrived .kf-floor-loader__progress-bar {
    animation: kfLoaderProgress 1.2s ease-in-out forwards;
}

/* Reveal nhanh khi chuyển trang */
.kf-floor-loader.is-revealing-fast .kf-floor-plank {
    animation: kfPlankPeelAway 0.55s cubic-bezier(0.55, 0, 0.85, 0.36) both;
    animation-delay: calc(var(--delay, 0) * 0.25s);
}

@keyframes kfPlankSnapIn {
    0% {
        opacity: 0;
        transform: translateY(120%) rotateX(62deg) scale(0.72);
    }
    55% {
        opacity: 1;
        transform: translateY(-6%) rotateX(8deg) scale(1.02);
    }
    78% {
        transform: translateY(2%) rotateX(-3deg) scale(0.99);
    }
    100% {
        opacity: 1;
        transform: translateY(0) rotateX(0) scale(1);
    }
}

@keyframes kfPlankPeelAway {
    0% {
        opacity: 1;
        transform: translateY(0) rotateX(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-110%) rotateX(35deg) scale(0.85);
    }
}

@keyframes kfPlankCoverIn {
    0% {
        opacity: 0;
        transform: translateY(-80%) rotateX(-40deg) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translateY(0) rotateX(0) scale(1);
    }
}

/* ---- Brand overlay ---- */
.kf-floor-loader__shine {
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(ellipse at center, rgba(255, 248, 230, 0.22) 0%, rgba(197, 160, 89, 0.12) 35%, transparent 68%);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.6s ease;
}

.kf-floor-loader.is-assembling .kf-floor-loader__shine,
.kf-floor-loader.is-transition-in .kf-floor-loader__shine {
    opacity: 1;
}

.kf-floor-loader__brand {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    z-index: 2;
    opacity: 0;
    transform: translateY(12px) scale(0.96);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
}

.kf-floor-loader.is-brand .kf-floor-loader__brand,
.kf-floor-loader.is-revealing .kf-floor-loader__brand {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.kf-floor-loader__logo-wrap {
    max-width: 200px;
    padding: 14px 22px;
    background: rgba(35, 32, 28, 0.5);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    filter: drop-shadow(0 8px 28px rgba(0, 0, 0, 0.35));
}

.kf-floor-loader__logo-img {
    display: block;
    max-width: 100%;
    height: auto;
    max-height: 72px;
    width: auto;
    margin: 0 auto;
}

.kf-floor-loader__logo-text {
    font-size: 28px;
    font-weight: 900;
    letter-spacing: 4px;
    color: #fff;
    text-shadow: 0 2px 20px rgba(197,160,89,0.4);
}

.kf-floor-loader__tagline {
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(197, 160, 89, 0.9);
    font-weight: 600;
}

.kf-floor-loader__progress {
    width: 120px;
    height: 2px;
    background: rgba(255,255,255,0.15);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.kf-floor-loader__progress-bar {
    display: block;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--kf-gold, #c5a059), #e8d5a8);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.kf-floor-loader.is-assembling .kf-floor-loader__progress-bar,
.kf-floor-loader.is-transition-in .kf-floor-loader__progress-bar {
    animation: kfLoaderProgress 1.8s ease-in-out forwards;
}

@keyframes kfLoaderProgress {
    0%   { width: 0%; }
    30%  { width: 35%; }
    60%  { width: 68%; }
    85%  { width: 88%; }
    100% { width: 100%; }
}

/* ---- Mobile & Tablet ---- */
@media (max-width: 768px) {
    .kf-floor-loader {
        width: 100%;
        left: 0;
        right: 0;
    }

    .kf-floor-loader__inner {
        width: min(88vw, 340px);
        aspect-ratio: 4 / 5;
        margin: 0 auto;
    }

    .kf-floor-loader__grid--mobile,
    .kf-floor-loader__grid {
        grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
        grid-template-rows: repeat(5, minmax(0, 1fr)) !important;
        gap: 5px;
        padding: 6px;
    }

    .kf-floor-loader__grid--mobile .kf-floor-plank,
    .kf-floor-loader__grid .kf-floor-plank {
        grid-column: auto !important;
        grid-row: auto !important;
    }

    .kf-floor-loader__brand {
        padding: 0 12px;
        width: 100%;
        box-sizing: border-box;
    }

    .kf-floor-loader__logo-wrap {
        max-width: 160px;
        padding: 10px 16px;
    }

    .kf-floor-loader__tagline {
        font-size: 10px;
        letter-spacing: 2px;
    }
}

@media (max-width: 480px) {
    .kf-floor-loader__inner {
        width: min(86vw, 300px);
    }

    .kf-floor-loader__logo-text {
        font-size: 20px;
        letter-spacing: 2px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .kf-floor-loader {
        transition: opacity 0.2s ease;
    }

    .kf-floor-plank,
    .kf-floor-loader__brand,
    .kf-floor-loader__progress-bar {
        animation: none !important;
        transition: none !important;
        transform: none !important;
        opacity: 1 !important;
    }

    .kf-floor-loader.is-done {
        opacity: 0;
    }
}