/**
 * Metzler Intro Page — premium landing layout.
 *
 * Štýly:
 *  - HERO: full-screen image background, dark overlay, biele typo (light on dark)
 *  - GALLERY: stacked sekcie, alternating image-vľavo / image-vpravo, fade-in pri scroll
 *  - STORY: čistý text na svetlom pozadí
 *  - FINAL CTA: výrazné centrované tlačidlo
 *  - Responsive: stack-uje vertikálne na mobile (<900px)
 */

/* ===== Reset / wrapper ===== */
.metzler-intro {
    --intro-max-width: 1280px;
    --intro-pad-x: clamp(20px, 5vw, 60px);
    --intro-text-color: #1a1a1a;
    --intro-muted: #666;
    --intro-accent: #005253; /* primary teal - hero CTA + tile arrow hover */
    --intro-accent-dark: #003a3b; /* hover-darker variant */
    --intro-bg-light: #fafaf8;
    color: var(--intro-text-color);
    line-height: 1.55;
}

.metzler-intro * {
    box-sizing: border-box;
}

/* ===== Reveal animation (IntersectionObserver pridá .is-visible) ===== */
.metzler-intro__reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 800ms ease, transform 800ms ease;
    will-change: opacity, transform;
}

.metzler-intro__reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .metzler-intro__reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ===== HERO ===== */
.metzler-intro__hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center center;
    background-color: #2a2a2a;
    color: #fff;
    overflow: hidden;
}

.metzler-intro__hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(0,0,0,0.30) 0%,
        rgba(0,0,0,0.50) 70%,
        rgba(0,0,0,0.65) 100%);
    z-index: 1;
}

.metzler-intro__hero-inner {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 var(--intro-pad-x);
    text-align: center;
}

.metzler-intro__hero-title {
    font-size: clamp(32px, 5vw, 64px);
    line-height: 1.1;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 24px;
    color: #fff;
    text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}

.metzler-intro__hero-subtitle {
    font-size: clamp(16px, 1.6vw, 22px);
    line-height: 1.5;
    font-weight: 400;
    margin: 0;
    color: rgba(255,255,255,0.92);
    text-shadow: 0 1px 6px rgba(0,0,0,0.5);
}

.metzler-intro__hero-cta {
    display: inline-block;
    margin-top: clamp(28px, 4vw, 44px);
    padding: 18px 48px;
    background: var(--intro-accent, #005253);
    color: #fff;
    border: none;
    border-radius: 999px;
    font-size: clamp(15px, 1.4vw, 18px);
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
    transition: background 200ms ease, color 200ms ease, transform 200ms ease, box-shadow 200ms ease;
}

.metzler-intro__hero-cta:hover,
.metzler-intro__hero-cta:focus {
    background: var(--intro-accent-dark, #003a3b);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.35);
    text-decoration: none;
}

.metzler-intro__hero-scrolldown {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: rgba(255,255,255,0.8);
    animation: metzler-intro-bounce 2s infinite;
}

@keyframes metzler-intro-bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%      { transform: translateX(-50%) translateY(8px); }
}

/* ===== SITE CARDS — kompaktné horizontálne reference karty ("by the way") ===== */
.metzler-intro__sites {
    background: #fff;
    padding: clamp(40px, 5vw, 64px) var(--intro-pad-x);
}

.metzler-intro__sites-header {
    max-width: var(--intro-max-width);
    margin: 0 auto clamp(20px, 2.5vw, 32px);
    text-align: center;
}

.metzler-intro__sites-heading {
    font-size: clamp(20px, 2vw, 28px);
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.015em;
    margin: 0 0 8px;
    color: var(--intro-text-color);
}

.metzler-intro__sites-intro {
    font-size: clamp(14px, 1.1vw, 16px);
    line-height: 1.55;
    color: var(--intro-muted);
    max-width: 640px;
    margin: 0 auto;
}

.metzler-intro__sites-intro p {
    margin: 0 0 8px;
}

.metzler-intro__sites-intro p:last-child {
    margin-bottom: 0;
}

.metzler-intro__sites-grid {
    max-width: var(--intro-max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 16px;
}

.metzler-intro__sitecard {
    display: grid;
    grid-template-columns: 96px 1fr auto;
    gap: 16px;
    align-items: center;
    padding: 14px 18px 14px 14px;
    border: 1px solid #e8e8e8;
    border-radius: 10px;
    background: #fff;
    text-decoration: none;
    color: #1a1a1a;
    transition: border-color 200ms ease, background 200ms ease, transform 200ms ease, box-shadow 200ms ease;
}

.metzler-intro__sitecard:hover,
.metzler-intro__sitecard:focus {
    border-color: #c8c8c8;
    background: #fafaf8;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    text-decoration: none;
    color: #1a1a1a;
}

.metzler-intro__sitecard-media {
    width: 96px;
    height: 96px;
    border-radius: 8px;
    background-size: cover;
    background-position: center center;
    background-color: #f0f0ed;
    flex-shrink: 0;
}

/* Overlay sa pri kompaktnom layoute nepoužíva — text je mimo obrázku */
.metzler-intro__sitecard-overlay {
    display: none;
}

.metzler-intro__sitecard-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;  /* aby text-overflow fungoval */
}

.metzler-intro__sitecard-title {
    font-size: 16px;
    line-height: 1.3;
    font-weight: 600;
    letter-spacing: -0.005em;
    margin: 0;
    color: #1a1a1a;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.metzler-intro__sitecard-text {
    font-size: 13px;
    line-height: 1.45;
    margin: 0;
    color: #666;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.metzler-intro__sitecard-arrow {
    font-size: 18px;
    line-height: 1;
    color: #888;
    transition: transform 200ms ease, color 200ms ease;
}

.metzler-intro__sitecard:hover .metzler-intro__sitecard-arrow {
    color: #1a1a1a;
    transform: translateX(4px);
}

/* ===== STACKED FEATURED GALLERY ===== */
.metzler-intro__gallery {
    background: var(--intro-bg-light);
    padding: clamp(60px, 10vw, 120px) 0;
}

.metzler-intro__feat {
    max-width: var(--intro-max-width);
    margin: 0 auto;
    padding: clamp(40px, 8vw, 100px) var(--intro-pad-x);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(30px, 6vw, 80px);
    align-items: center;
}

.metzler-intro__feat.is-image-right {
    direction: rtl; /* swap order via direction trick */
}

.metzler-intro__feat.is-image-right > * {
    direction: ltr; /* unset for content */
}

.metzler-intro__feat-imagewrap {
    display: block;
    overflow: hidden;
    border-radius: 6px;
    aspect-ratio: 4 / 3;
    background: #eee;
    transition: transform 600ms ease;
}

.metzler-intro__feat-imagewrap:hover {
    transform: scale(1.02);
}

.metzler-intro__feat-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.metzler-intro__feat-text {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.metzler-intro__feat-title {
    font-size: clamp(24px, 3vw, 36px);
    line-height: 1.15;
    font-weight: 700;
    letter-spacing: -0.015em;
    margin: 0;
    color: var(--intro-text-color);
}

.metzler-intro__feat-desc {
    font-size: clamp(15px, 1.2vw, 17px);
    line-height: 1.6;
    color: var(--intro-muted);
    margin: 0;
}

.metzler-intro__feat-desc p {
    margin: 0 0 10px;
}

.metzler-intro__feat-price {
    font-size: 20px;
    font-weight: 600;
    color: var(--intro-text-color);
    margin: 4px 0;
}

.metzler-intro__feat-price .metzler-price-dual {
    line-height: 1.2;
}

.metzler-intro__feat-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    padding: 12px 28px;
    background: transparent;
    color: var(--intro-text-color);
    border: 2px solid var(--intro-text-color);
    border-radius: 999px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: background 200ms ease, color 200ms ease;
    align-self: flex-start;
    width: fit-content;
}

.metzler-intro__feat-cta:hover,
.metzler-intro__feat-cta:focus {
    background: var(--intro-text-color);
    color: #fff;
    text-decoration: none;
}

.metzler-intro__feat-cta span {
    transition: transform 200ms ease;
}

.metzler-intro__feat-cta:hover span {
    transform: translateX(4px);
}

/* ===== STORY ===== */
.metzler-intro__story {
    padding: clamp(60px, 10vw, 120px) 0;
    background: #fff;
    text-align: center;
}

.metzler-intro__story-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 var(--intro-pad-x);
    font-size: clamp(16px, 1.4vw, 19px);
    line-height: 1.7;
    color: var(--intro-text-color);
}

.metzler-intro__story-inner p {
    margin: 0 0 16px;
}

.metzler-intro__story-inner h2,
.metzler-intro__story-inner h3 {
    font-size: clamp(24px, 3vw, 36px);
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.015em;
    margin: 0 0 24px;
}

/* ===== FINAL CTA ===== */
.metzler-intro__finalcta {
    padding: clamp(80px, 12vw, 160px) var(--intro-pad-x);
    background: var(--intro-bg-light);
    text-align: center;
}

.metzler-intro__finalcta-btn {
    display: inline-block;
    padding: 22px 56px;
    background: var(--intro-text-color);
    color: #fff;
    border: none;
    border-radius: 999px;
    font-size: clamp(16px, 1.5vw, 20px);
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: background 200ms ease, transform 200ms ease, box-shadow 200ms ease;
    box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.metzler-intro__finalcta-btn:hover,
.metzler-intro__finalcta-btn:focus {
    background: var(--intro-accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.20);
    text-decoration: none;
}

/* ===== RESPONSIVE — mobile stack ===== */
@media (max-width: 900px) {
    .metzler-intro__hero {
        min-height: 80vh;
    }
    .metzler-intro__feat,
    .metzler-intro__feat.is-image-right {
        grid-template-columns: 1fr;
        direction: ltr;
        gap: 24px;
    }
    .metzler-intro__feat-imagewrap {
        aspect-ratio: 16 / 10;
    }
    .metzler-intro__feat-cta {
        padding: 14px 24px;
    }
}

/* ===========================================================================
 * Tiles layout variant — banner-pas hero + 4:3 uniform tile grid
 * Aktivuje sa cez .metzler-intro--tiles class na <main> ked admin v Settings
 * vyberie "Dlazdicovy" layout. Classic variant je default a zostava nedotknute.
 * =========================================================================== */

/* Hero zuzeny na banner-pas (~300px desktop, 240px mobile).
 * Fixed min-height namiesto aspect-ratio - aspect by sa zmensila
 * proporcne s width, my chceme stabilnu vysku banner-u. */
.metzler-intro--tiles .metzler-intro__hero {
    min-height: 300px;
    height: 300px;
    max-height: 300px;
    padding: 0;
    /* Explicitne flex center (override-nute base rules). */
    display: flex;
    align-items: center;
    justify-content: center;
    /* Full-bleed: rozsiri hero cez celu sirku viewport-u, mimo parent
     * ct-container max-width-u. Background image (set inline cez style)
     * sa potom prirodzene zarovna na stred cele obrazovky. */
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    box-sizing: border-box;
    background-size: cover;
    background-position: center center;
}
.metzler-intro--tiles .metzler-intro__hero-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.metzler-intro--tiles .metzler-intro__hero-title {
    font-size: clamp(22px, 3vw, 36px);
    margin: 0;
}
.metzler-intro--tiles .metzler-intro__hero-subtitle {
    font-size: clamp(13px, 1.4vw, 16px);
    margin: 0;
}
.metzler-intro--tiles .metzler-intro__hero-cta {
    margin-top: 4px;
    padding: 9px 24px;
    font-size: 13px;
    letter-spacing: 0.06em;
}
/* Banner-pas ma malu vysku, scroll-down chevron je zbytocny. */
.metzler-intro--tiles .metzler-intro__hero-scrolldown {
    display: none;
}

@media (max-width: 767px) {
    .metzler-intro--tiles .metzler-intro__hero {
        min-height: 240px;
        height: 240px;
        max-height: 240px;
    }
    .metzler-intro--tiles .metzler-intro__hero-inner {
        padding: 12px 16px;
    }
}

/* Featured products tile grid - 3-col desktop / 2-col mobile, aspect 4:3. */
.metzler-intro__gallery--tiles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 1290px;
    margin: 40px auto;
    padding: 0 16px;
}

@media (max-width: 1023px) {
    .metzler-intro__gallery--tiles {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}
@media (max-width: 767px) {
    .metzler-intro__gallery--tiles {
        margin: 24px auto;
        gap: 10px;
        padding: 0 12px;
    }
}

/* Single tile: aspect 4:3, image fills, overlay at bottom. */
.metzler-intro__tile {
    position: relative;
    display: block;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: 12px;
    text-decoration: none;
    color: #fff;
    background: #1a1a1a;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
    transition: box-shadow 280ms ease, transform 280ms ease;
}
.metzler-intro__tile:hover {
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.16);
}

.metzler-intro__tile-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 380ms cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform;
}
.metzler-intro__tile:hover .metzler-intro__tile-img {
    transform: scale(1.08);
}

.metzler-intro__tile-overlay {
    position: absolute;
    inset: 0;
    padding: 16px 20px 18px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    background: none;
    pointer-events: none;
}

.metzler-intro__tile-title {
    margin: 0;
    padding-right: 0;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.6;
    color: #fff;
}
.metzler-intro__tile-title > span {
    display: inline;
    background: rgba(0, 0, 0, 0.82);
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
    padding: 1px 6px;
}

.metzler-intro__tile-price {
    margin-top: 4px;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    opacity: 0.94;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

@media (max-width: 767px) {
    .metzler-intro__tile-title {
        font-size: 14px;
    }
    .metzler-intro__tile-price {
        font-size: 13px;
    }
    .metzler-intro__tile-overlay {
        padding: 10px 12px;
    }
}

/* Site cards v tiles variante - rovnake 4:3 grid pravidla aplikovat na
 * existujuci site-cards markup (renderuje sa rovnako, len iny container). */
.metzler-intro--tiles .metzler-intro__sites-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 1290px;
    margin: 0 auto;
    padding: 0 16px;
}
@media (max-width: 1023px) {
    .metzler-intro--tiles .metzler-intro__sites-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}
@media (max-width: 767px) {
    .metzler-intro--tiles .metzler-intro__sites-grid {
        gap: 10px;
        padding: 0 12px;
    }
}
.metzler-intro--tiles .metzler-intro__sitecard {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
    transition: box-shadow 280ms ease;
}
.metzler-intro--tiles .metzler-intro__sitecard:hover {
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.16);
}
.metzler-intro--tiles .metzler-intro__sitecard-media {
    transition: transform 380ms cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform;
}
.metzler-intro--tiles .metzler-intro__sitecard:hover .metzler-intro__sitecard-media {
    transform: scale(1.08);
}

/* === Combined tiles section (produkty + site_cards v jednom 4:3 grid) === */
.metzler-intro__tiles-combined {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 1290px;
    margin: 40px auto;
    padding: 0 16px;
}

@media (max-width: 1023px) {
    .metzler-intro__tiles-combined {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}
@media (max-width: 767px) {
    .metzler-intro__tiles-combined {
        margin: 24px auto;
        gap: 10px;
        padding: 0 12px;
    }
}

/* Site card variant in combined tiles - dvojradkovy text (title + subtitle). */
.metzler-intro__tile-subtitle {
    margin-top: 6px;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.6;
}
.metzler-intro__tile-subtitle > span {
    display: inline;
    background: rgba(0, 0, 0, 0.82);
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
    padding: 1px 6px;
}
@media (max-width: 767px) {
    .metzler-intro__tile-subtitle {
        font-size: 12px;
    }
}

/* Tile cover - neviditelny <a> ktory pokryva celu plochu tile.
 * Klik kdekol-vek na tile (mimo badge a arrow) -> ide na product.
 * Badge ma vyssi z-index + pointer-events: auto -> klik na nej preteka
 * cez cover na category URL. */
.metzler-intro__tile-cover {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: block;
    text-decoration: none;
    color: transparent;
    text-indent: -9999px;
    overflow: hidden;
}

/* Kategoria badge v hornom rohu - klikatelne na /obchod-scroll/?category=slug.
 * Default biele pozadie + tmavy text. Hover cyan brand. */
.metzler-intro__tile-cat-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 3;
    background: #fff;
    color: #1a1a1a !important;
    padding: 5px 12px;
    border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    text-decoration: none !important;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.18);
    max-width: calc(100% - 60px);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
}
.metzler-intro__tile-cat-badge:hover,
.metzler-intro__tile-cat-badge:focus {
    background: #005253;
    color: #fff !important;
    border-color: #005253;
}
/* Non-link variant (ak chyba category URL) - bez hover. */
.metzler-intro__tile-cat-badge--nolink {
    pointer-events: none;
    cursor: default;
}
@media (max-width: 767px) {
    .metzler-intro__tile-cat-badge {
        top: 10px;
        left: 10px;
        padding: 4px 9px;
        font-size: 10px;
    }
}

/* Mobile tiles - skryt subtitle, title clamp na 2 riadky (kompaktnejsie). */
@media (max-width: 767px) {
    .metzler-intro__tile-subtitle {
        display: none;
    }
    .metzler-intro__tile-title {
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        font-size: 13px;
        padding-right: 42px; /* miesto pre arrow */
    }
}