/* ============================================
   GLOBAL
   ============================================ */
* {
    box-sizing: border-box;
}

html, body {
    overflow-x: hidden;
    max-width: 100%;
}

/* ============================================
   MOBILNÍ NAV — iOS safe area + GPU vrstva
   ============================================ */
.mobile-nav-bar {
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    transform: translateZ(0);        /* GPU vrstva — fix iOS backdrop-blur rendering */
    -webkit-transform: translateZ(0);
}

/* ============================================
   LENIS SMOOTH SCROLL
   ============================================ */
html.lenis,
html.lenis body {
    height: auto;
}
.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}
.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

/* ============================================
   BENTO KARTY — 3D TILT + SPOTLIGHT HOVER
   ============================================ */
.bento-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 28px;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    perspective: 1000px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.bento-card-inner {
    transition: transform 0.15s ease-out;
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.bento-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(300px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(132, 204, 22, 0.15), transparent 80%);
    z-index: 2;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.bento-card:hover::before {
    opacity: 1;
}

.bento-card:hover {
    border-color: rgba(132, 204, 22, 0.4);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.08);
}

/* ============================================
   MAGNETICKÁ TLAČÍTKA
   ============================================ */
.magnetic-zone {
    display: inline-block;
    padding: 30px;
    margin: -30px;
    position: relative;
}

/* Pro full-width použití (formulář) */
.magnetic-zone-block {
    display: block;
    padding: 20px 30px;
    margin: -20px -30px;
    position: relative;
}

.magnetic-button {
    position: relative;
    transition: transform 0.2s cubic-bezier(0.25, 1, 0.5, 1), background-color 0.3s ease, color 0.3s ease;
}

.magnetic-button::after {
    content: '';
    position: absolute;
    inset: -8px;
    border: 1px solid rgba(132, 204, 22, 0);
    border-radius: inherit;
    transition: inset 0.3s ease, border-color 0.3s ease;
    pointer-events: none;
}

.magnetic-zone:hover .magnetic-button::after,
.magnetic-zone-block:hover .magnetic-button::after {
    inset: -4px;
    border-color: rgba(132, 204, 22, 0.5);
}

/* ============================================
   PORTFOLIO GALERIE — KARTY
   ============================================ */
.gallery-grid {
    display: grid;
    position: relative;
}

.gallery-item {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.4s;
    cursor: pointer;
}

.gallery-item.is-hidden {
    opacity: 0;
    transform: scale(0.92) translateY(10px);
    pointer-events: none;
    /* display: none je nastaveno JS po skončení transition — bez position:absolute, aby nedocházelo k blikání */
}

/* Foto zoom při hoveru */
.portfolio-img {
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Overlay při hoveru */
.portfolio-overlay {
    opacity: 0;
    transition: opacity 0.35s ease;
}

.gallery-item:hover .portfolio-overlay {
    opacity: 1;
}

/* ============================================
   FAQ AKORDEON
   ============================================ */
.faq-trigger[aria-expanded="true"] .faq-icon {
    transform: rotate(180deg);
}

.faq-content {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-trigger[aria-expanded="true"] + .faq-content {
    grid-template-rows: 1fr;
}

/* ============================================
   SCROLL TO TOP TLAČÍTKO
   ============================================ */
#scroll-top-btn {
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ============================================
   HERO — tečkovaný grid pozadí
   ============================================ */
.hero-pattern {
    background-image: radial-gradient(circle, rgba(132, 204, 22, 0.25) 2px, transparent 2px);
    background-size: 28px 28px;
    background-position: center center;
}

/* ============================================
   HERO — scroll indikátor
   ============================================ */
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0);   opacity: 0.45; }
    50%       { transform: translateY(8px); opacity: 0.9;  }
}
.scroll-indicator {
    animation: scrollBounce 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ============================================
   MOBILNÍ NAV — aktivní stav
   ============================================ */
.mobile-nav-link {
    color: #64748b;
    transition: color 0.25s ease;
}
.mobile-nav-link.is-active {
    color: #84cc16;
}

/* ============================================
   HERO GRADIENT FLOW — "obrábění" efekt (stálý)
   ============================================ */
@keyframes heroGradientFlow {
    0%   { background-position: 0% center; }
    100% { background-position: 200% center; }
}

#hero-slot-word {
    background: linear-gradient(90deg,
        #84cc16, #10b981, #65a30d, #a3e635, #10b981, #84cc16);
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: heroGradientFlow 4s linear infinite;
}

/* ============================================
   HERO ANIMACE — staggered fade-up
   ============================================ */
@keyframes heroFadeUp {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero-anim {
    opacity: 0;
    animation: heroFadeUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.hero-anim-1 { animation-delay: 0.1s; }
.hero-anim-2 { animation-delay: 0.3s; }
.hero-anim-3 { animation-delay: 0.5s; }
.hero-anim-4 { animation-delay: 0.7s; }

/* ============================================
   NAV SCROLLSPY — aktivní položka
   ============================================ */
.nav-link {
    border-radius: 10px;
    transition: background-color 0.25s ease, color 0.25s ease;
}
.nav-link.is-active {
    background-color: #84cc16;
    color: #0f1010;
}

/* ============================================
   MARQUEE ANIMACE
   ============================================ */
@keyframes marquee {
    0%   { transform: translateX(0%); }
    100% { transform: translateX(-50%); }
}

.animate-marquee {
    animation: marquee 25s linear infinite;
}