/* ============================================================
   Arborobo — styles.css
   Stack: PHP (php-base), vanilla CSS, mobile-first
   Brand: Zelená #0A5E2A, Limetková #D4D464, Oranžová #D46420
   ============================================================ */

/* ── Reset & base ──────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ── CSS Custom properties ─────────────────────────────────── */
:root {
    --color-brand:        #0A5E2A;
    --color-brand-dark:   #074d22;
    --color-brand-light:  #e8f5ed;
    --color-accent:       #D46420;
    --color-accent-dark:  #b5541a;
    --color-secondary:    #D4D464;
    --color-logo-bg:      #C2C2A4;
    --color-text:         #1A1A0A;
    --color-text-muted:   #5a5a48;
    --color-heading:      #0d2e17;
    --color-surface:      #F5F5F0;
    --color-border:       #d8d8cc;
    --color-white:        #ffffff;

    --font-heading: 'Montserrat', system-ui, sans-serif;
    --font-sans:    'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

    --radius-sm:  4px;
    --radius-md:  8px;
    --radius-lg:  16px;

    --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
    --shadow-md:  0 4px 16px rgba(0,0,0,.10);
    --shadow-lg:  0 8px 32px rgba(0,0,0,.12);

    --container:        1200px;
    --container-narrow: 760px;
    --gutter:           clamp(1rem, 4vw, 2rem);

    --header-h:   84px;
    --transition: 0.2s ease;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

#main-content {
    flex: 1;
}

img, svg { display: block; max-width: 100%; }

a {
    color: var(--color-brand);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--color-brand-dark); text-decoration: underline; }

address { font-style: normal; }

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-heading);
    font-weight: 700;
    line-height: 1.2;
}
h1 { font-size: clamp(1.875rem, 4.5vw, 3rem);   margin-bottom: 1.25rem; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem);    margin-bottom: 1rem; }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); margin-bottom: 0.75rem; }
p  { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ── Layout helpers ─────────────────────────────────────────── */
.container {
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.75em 1.75em;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
    white-space: nowrap;
}
.btn--primary {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}
.btn--primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: var(--color-white);
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(212,100,32,.35);
}
.btn--green {
    background: var(--color-brand);
    color: var(--color-white);
    border-color: var(--color-brand);
}
.btn--green:hover {
    background: var(--color-brand-dark);
    border-color: var(--color-brand-dark);
    color: var(--color-white);
    text-decoration: none;
}
.btn--outline {
    background: transparent;
    color: var(--color-brand);
    border-color: var(--color-brand);
}
.btn--outline:hover {
    background: var(--color-brand);
    color: var(--color-white);
    text-decoration: none;
}
.btn--lg   { padding: 0.9em 2.25em; font-size: 1rem; }
.btn--full { width: 100%; justify-content: center; }

/* ── Sections ───────────────────────────────────────────────── */
.section { padding-block: clamp(3.5rem, 8vw, 6rem); }
.section--alt { background: var(--color-surface); }
.section--dark { background: var(--color-brand); color: var(--color-white); }
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: var(--color-white); }
.section__heading {
    margin-bottom: clamp(2rem, 4vw, 3rem);
    text-align: center;
}
.section__subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 60ch;
    margin-inline: auto;
    margin-top: 0.75rem;
}

/* ──────────────────────────────────────────────────────────────
   HEADER
   ──────────────────────────────────────────────────────────────*/
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-logo-bg);
    border-bottom: 2px solid rgba(0,0,0,.1);
    box-shadow: var(--shadow-sm);
    height: var(--header-h);
}
.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 1.5rem;
}

/* Logo */
.site-header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    text-decoration: none;
}
.site-header__logo img {
    height: 68px;
    width: auto;
    display: block;
}

/* Nav */
.main-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}
.main-nav__list {
    display: flex;
    list-style: none;
    gap: 0.25rem;
    align-items: center;
}
.main-nav__list > li { position: relative; }

.main-nav__list > li > a,
.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.625rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-heading);
    text-decoration: none;
    border-radius: var(--radius-sm);
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: color var(--transition), background var(--transition);
}
.main-nav__list > li > a:hover,
.nav-dropdown-toggle:hover,
.main-nav__list > li > a[aria-current="page"] {
    color: var(--color-brand);
    text-decoration: none;
    background: rgba(0,0,0,.08);
}
.nav-arrow { font-size: 0.75em; transition: transform var(--transition); }
.nav-dropdown-toggle[aria-expanded="true"] .nav-arrow { transform: rotate(180deg); }

/* Dropdown */
.nav-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 240px;
    list-style: none;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 0.375rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    z-index: 10;
}
.has-dropdown:hover .nav-dropdown,
.has-dropdown:focus-within .nav-dropdown,
.nav-dropdown.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.nav-dropdown li a {
    display: block;
    padding: 0.5rem 0.875rem;
    font-size: 0.9rem;
    color: var(--color-heading);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
}
.nav-dropdown li a:hover {
    background: var(--color-brand-light);
    color: var(--color-brand);
    text-decoration: none;
}

.main-nav__cta { flex-shrink: 0; }

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: none;
    border: 1px solid var(--color-border);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-heading);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ──────────────────────────────────────────────────────────────
   HERO
   ──────────────────────────────────────────────────────────────*/
.hero {
    position: relative;
    overflow: hidden;
    min-height: clamp(480px, 72vh, 720px);
    display: flex;
    align-items: center;
    background: var(--color-brand-dark); /* Záložní pozbackground */
}
.hero__bg {
    /* Kompletně a definitivně vyřadíme z provozu starou prázdnou vrstvu */
    display: none !important;
}
.hero__bg img {
    display: none !important;
}
.hero__overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    /* Správná cesta, která vyskočí ze složky css a zamíří do images */
    background: linear-gradient(
        to right,
        rgba(0, 0, 0, 0.85) 0%,   
        rgba(0, 0, 0, 0.45) 55%,  
        rgba(0, 0, 0, 0.15) 100%  
    ), url('../images/uvod_pozadi.jpeg') no-repeat 20% 30% / cover !important;
}
.hero__content {
    position: relative;
    z-index: 2;
    max-width: 680px;
    color: var(--color-white);
    padding-block: 5rem;
}
.hero__content h1 { color: var(--color-white); margin-bottom: 1.25rem; }
.hero__content p  { font-size: 1.125rem; opacity: 0.9; margin-bottom: 2rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

/* ──────────────────────────────────────────────────────────────
   FOOTER
   ──────────────────────────────────────────────────────────────*/
.site-footer {
    background: var(--color-brand);
    color: rgba(255,255,255,.85);
    padding-top: clamp(3rem, 6vw, 5rem);
}
.site-footer__inner {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
}
.site-footer__name {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 0.25rem;
}
.site-footer__tagline {
    margin-top: 0.75rem;
    font-size: 0.875rem;
    opacity: 0.8;
    line-height: 1.5;
}
.site-footer__nav h3,
.site-footer__contact h3 {
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    font-family: var(--font-sans);
}
.site-footer__nav ul { list-style: none; }
.site-footer__nav li + li { margin-top: 0.5rem; }
.site-footer__nav a,
.site-footer__contact a {
    color: rgba(255,255,255,.8);
    font-size: 0.9375rem;
    text-decoration: none;
    transition: color var(--transition);
}
.site-footer__nav a:hover,
.site-footer__contact a:hover { color: var(--color-secondary); text-decoration: none; }
.site-footer__contact p { margin-bottom: 0.5rem; font-size: 0.9375rem; }

.site-footer__bottom {
    border-top: 1px solid rgba(255,255,255,.15);
    padding-block: 1.25rem;
}
.site-footer__bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.875rem;
    opacity: 0.7;
}
.site-footer__bottom a { color: inherit; }
.site-footer__bottom a:hover { color: var(--color-secondary); text-decoration: none; }

/* ──────────────────────────────────────────────────────────────
   SERVICE CARDS (Přepsáno na Flexbox pro systém 3 a 2)
   ──────────────────────────────────────────────────────────────*/
.services-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}
.service-card {
    flex: 0 1 calc(33.333% - 1.5rem);
    min-width: 280px;
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.service-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: var(--color-brand);
    text-decoration: none;
    color: inherit;
}
.service-card__icon {
    width: 52px;
    height: 52px;
    background: var(--color-brand-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: var(--color-brand);
    flex-shrink: 0;
}
.service-card h3 {
    color: var(--color-heading);
    margin-bottom: 0.625rem;
    font-size: 1.125rem;
}
.service-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    flex: 1;
    margin-bottom: 1.25rem;
}
.service-card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-brand);
    margin-top: auto;
}

/* ──────────────────────────────────────────────────────────────
   USP GRID
   ──────────────────────────────────────────────────────────────*/
.usp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2.5rem;
}
.usp-card { text-align: center; }
.usp-card__icon {
    width: 68px;
    height: 68px;
    background: var(--color-brand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    color: var(--color-white);
}
.usp-card h3 { margin-bottom: 0.625rem; }
.usp-card p  { color: var(--color-text-muted); font-size: 0.9375rem; }

/* ──────────────────────────────────────────────────────────────
   FAQ (details / summary)
   ──────────────────────────────────────────────────────────────*/
.faq-list {
    max-width: 760px;
    margin-inline: auto;
}
.faq-item {
    border-bottom: 1px solid var(--color-border);
}
.faq-item:first-child { border-top: 1px solid var(--color-border); }

.faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 0;
    cursor: pointer;
    font-weight: 600;
    color: var(--color-heading);
    font-size: 1.0625rem;
    list-style: none;
    transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--color-brand); }
.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-brand);
    flex-shrink: 0;
    line-height: 1;
}
.faq-item[open] summary::after { content: '–'; }

.faq-item__body {
    padding-bottom: 1.5rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    max-width: 68ch;
}

/* ──────────────────────────────────────────────────────────────
   CTA BAND
   ──────────────────────────────────────────────────────────────*/
.cta-band {
    background: var(--color-brand);
    padding-block: clamp(3rem, 6vw, 4.5rem);
    text-align: center;
}
.cta-band h2 {
    color: var(--color-white);
    margin-bottom: 0.75rem;
}
.cta-band p {
    color: rgba(255,255,255,.85);
    font-size: 1.125rem;
    max-width: 55ch;
    margin-inline: auto;
    margin-bottom: 2rem;
}
.cta-band__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}
.btn--white {
    background: var(--color-white);
    color: var(--color-brand);
    border-color: var(--color-white);
}
.btn--white:hover {
    background: rgba(255,255,255,.9);
    color: var(--color-brand-dark);
    text-decoration: none;
}
.btn--ghost {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255,255,255,.55);
}
.btn--ghost:hover {
    background: rgba(255,255,255,.12);
    color: var(--color-white);
    text-decoration: none;
}

/* ──────────────────────────────────────────────────────────────
   SERVICE DETAIL (podstránky)
   ──────────────────────────────────────────────────────────────*/
.service-detail__intro {
    font-size: 1.125rem;
    line-height: 1.75;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    max-width: 68ch;
}
.check-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    margin-bottom: 2rem;
}
.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    font-size: 1rem;
}
.check-list li::before {
    content: '✓';
    color: var(--color-brand);
    font-weight: 700;
    flex-shrink: 0;
    line-height: 1.6;
}

/* ──────────────────────────────────────────────────────────────
   CONTACT FORM
   ──────────────────────────────────────────────────────────────*/
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 4rem;
    align-items: start;
}
.contact-info h2 { margin-bottom: 1.5rem; }
.contact-info__item {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    margin-bottom: 1.5rem;
}
.contact-info__item svg {
    flex-shrink: 0;
    color: var(--color-brand);
    margin-top: 2px;
}
.contact-info__item strong { display: block; color: var(--color-heading); }
.contact-info__item a {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-brand);
}

.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.375rem; }
.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-heading);
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-white);
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-brand);
    box-shadow: 0 0 0 3px rgba(10,94,42,.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }

.form-hint {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}
.form-honey { display: none !important; }
.form-success, .form-error {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}
.form-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.form-error   { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* ──────────────────────────────────────────────────────────────
   RESPONSIVE — mobile
   ──────────────────────────────────────────────────────────────*/
@media (max-width: 900px) {
    .site-footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
    :root { --header-h: 72px; }

    .nav-toggle { display: flex; }
    .main-nav__cta { display: none; }

    .main-nav {
        display: none;
        position: fixed;
        inset: var(--header-h) 0 0 0;
        background: var(--color-white);
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        padding: 1.5rem var(--gutter) 2rem;
        overflow-y: auto;
        box-shadow: var(--shadow-lg);
        z-index: 99;
    }
    .main-nav.is-open { display: flex; }

    .main-nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
    }
    .main-nav__list > li > a,
    .nav-dropdown-toggle {
        width: 100%;
        padding: 0.875rem 0;
        border-bottom: 1px solid var(--color-border);
        border-radius: 0;
        justify-content: space-between;
    }
    .nav-dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        border-radius: 0;
        padding: 0 0 0 1rem;
        display: none;
    }
    .nav-dropdown.is-open { display: block; }
    .nav-dropdown li a {
        border-bottom: 1px solid var(--color-border);
        border-radius: 0;
        padding: 0.75rem 0;
    }

    .hero__content { padding-block: 3.5rem; }
    .hero__actions { flex-direction: column; align-items: flex-start; }

    .site-footer__inner { grid-template-columns: 1fr; gap: 2rem; }
    .site-footer__bottom .container { flex-direction: column; text-align: center; }

    .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .form-row { grid-template-columns: 1fr; }
    .hero__actions { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 900px) {
    /* Na tabletech přizpůsobíme šířku pro 2 karty vedle sebe */
    .services-grid .service-card {
        flex: 0 1 calc(50% - 1.5rem);
    }
}

@media (max-width: 480px) {
    /* Na mobilu obsadí každá karta plnou šířku */
    .services-grid .service-card {
        flex: 0 1 100%;
    }
    .usp-grid { grid-template-columns: 1fr; }
    .site-header__logo img { height: 40px; }
}