/*
Theme Name: CHC GROUP
Theme URI: https://www.chc-group.sk
Description: CHC GROUP one-page theme
Version: 2.0
Author: CHC GROUP
Text Domain: chcgroup
*/

/* ========== RESET & BASE ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --crimson:      #8c1c1c;
    --crimson-dark: #6a1414;
    --crimson-light:#b02424;
    --charcoal:     #1a1a1a;
    --dark:         #111111;
    --gray-50:      #fafafa;
    --gray-100:     #f4f4f4;
    --gray-200:     #e8e8e8;
    --gray-400:     #aaaaaa;
    --gray-600:     #666666;
    --white:        #ffffff;
    --font-head:    'Poppins', 'Segoe UI', Arial, sans-serif;
    --font-body:    'Lato', 'Segoe UI', Arial, sans-serif;
    --max:          1140px;
    --transition:   .35s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font-body);
    color: var(--charcoal);
    background: var(--white);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--crimson); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--crimson-dark); }
img { max-width: 100%; height: auto; display: block; }

.container {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 32px;
}

/* ========== SCROLL REVEAL ========== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .65s ease, transform .65s ease;
}
.reveal.visible {
    opacity: 1;
    transform: none;
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* ========== HEADER / NAV ========== */
#site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: transparent;
    transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
    padding: 8px 0;
}

#site-header.scrolled {
    background: var(--dark);
    box-shadow: 0 4px 24px rgba(0,0,0,.35);
    padding: 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 16px;
}

.site-logo img {
    height: 38px;
    width: auto;
    filter: brightness(0) invert(1);
    transition: opacity var(--transition);
}
.site-logo img:hover { opacity: .8; }

.site-nav {
    display: flex;
    gap: 0;
    list-style: none;
}

.site-nav a {
    color: rgba(255,255,255,.78);
    font-family: var(--font-head);
    font-size: .78rem;
    font-weight: 500;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: 8px 18px;
    position: relative;
    transition: color var(--transition);
    display: block;
}

.site-nav a::after {
    content: '';
    position: absolute;
    top: 0; left: 18px; right: 18px;
    height: 2px;
    background: var(--crimson);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--white);
}

.site-nav a:hover::after,
.site-nav a.active::after {
    transform: scaleX(1);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

/* ========== HERO ========== */
#hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--dark);
}

/* Slideshow */
.hero-slides {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.4s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
    animation: heroZoom 8s ease-out forwards;
}

@keyframes heroZoom {
    from { transform: scale(1.04); }
    to   { transform: scale(1); }
}

/* Dark gradient overlay on top of photos */
.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        linear-gradient(to right, rgba(10,0,0,.75) 0%, rgba(10,0,0,.45) 60%, rgba(10,0,0,.3) 100%),
        linear-gradient(to top, rgba(0,0,0,.5) 0%, transparent 50%);
}

/* Subtle dot pattern on overlay */
.hero-overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.04) 1px, transparent 0);
    background-size: 40px 40px;
}

.hero-content {
    position: relative;
    z-index: 3;
    padding: 120px 0 80px;
    max-width: 720px;
}

.hero-eyebrow {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

.hero-eyebrow::before {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background: var(--crimson);
}

.hero-eyebrow span {
    font-family: var(--font-head);
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--crimson-light);
}

.hero-content h1 {
    font-family: var(--font-head);
    font-size: clamp(2.6rem, 6vw, 4.2rem);
    font-weight: 300;
    color: var(--white);
    line-height: 1.12;
    margin-bottom: 8px;
    letter-spacing: -.01em;
}

.hero-content h1 strong {
    font-weight: 700;
    display: block;
}

.hero-divider {
    width: 56px;
    height: 3px;
    background: var(--crimson);
    margin: 28px 0;
}

.hero-content p {
    color: rgba(255,255,255,.68);
    font-size: 1.1rem;
    font-weight: 300;
    margin-bottom: 44px;
    max-width: 520px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--crimson);
    color: var(--white) !important;
    font-family: var(--font-head);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: 15px 32px;
    border-radius: 2px;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
    background: var(--crimson-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(140,28,28,.4);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: transparent;
    color: rgba(255,255,255,.75) !important;
    font-family: var(--font-head);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: 15px 32px;
    border-radius: 2px;
    border: 1px solid rgba(255,255,255,.25);
    transition: color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn-ghost:hover {
    color: var(--white) !important;
    border-color: rgba(255,255,255,.6);
    transform: translateY(-2px);
}

/* Hero scroll indicator */
.hero-scroll {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,.35);
    font-family: var(--font-head);
    font-size: .65rem;
    letter-spacing: .15em;
    text-transform: uppercase;
    animation: heroScroll 2s ease-in-out infinite;
}

.hero-scroll::after {
    content: '';
    display: block;
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,.3), transparent);
}

@keyframes heroScroll {
    0%, 100% { opacity: .35; transform: translateX(-50%) translateY(0); }
    50%       { opacity: .7;  transform: translateX(-50%) translateY(6px); }
}

/* ========== SECTION BASE ========== */
.section { padding: 112px 0; }
.section.bg-light { background: var(--gray-50); }
.section.bg-dark  { background: var(--dark); }

.section-eyebrow {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.section-eyebrow::before {
    content: '';
    display: block;
    width: 32px;
    height: 2px;
    background: var(--crimson);
    flex-shrink: 0;
}

.section-eyebrow span {
    font-family: var(--font-head);
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--crimson);
}

.section-header { margin-bottom: 72px; }

.section-header h2 {
    font-family: var(--font-head);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 300;
    color: var(--charcoal);
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -.01em;
}

.section-header h2 strong { font-weight: 700; }

.section-header p {
    color: var(--gray-600);
    font-size: 1rem;
    max-width: 540px;
    line-height: 1.8;
}

/* Dark section overrides */
.section.bg-dark .section-eyebrow::before { background: var(--crimson); }
.section.bg-dark .section-eyebrow span    { color: var(--crimson-light); }
.section.bg-dark .section-header h2       { color: var(--white); }
.section.bg-dark .section-header p        { color: rgba(255,255,255,.5); }

/* ========== O SPOLOČNOSTI ========== */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.about-text p {
    color: var(--gray-600);
    margin-bottom: 20px;
    font-size: 1rem;
    line-height: 1.85;
}

.about-stat-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--gray-200);
    border: 1px solid var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 40px;
}

.about-stat {
    background: var(--white);
    padding: 28px 24px;
    text-align: center;
}

.about-stat-num {
    font-family: var(--font-head);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--crimson);
    line-height: 1;
    margin-bottom: 6px;
}

.about-stat-label {
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--gray-400);
}

.about-aside { display: flex; flex-direction: column; gap: 24px; }

.about-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 4px;
    padding: 28px 28px 24px;
    transition: box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--crimson);
    transform: scaleY(0);
    transition: transform var(--transition);
    transform-origin: bottom;
}

.about-card:hover::before { transform: scaleY(1); }

.about-card:hover {
    box-shadow: 0 12px 40px rgba(0,0,0,.08);
    border-color: var(--gray-200);
}

.about-card-title {
    font-family: var(--font-head);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--crimson);
    margin-bottom: 14px;
}

.about-card ul {
    list-style: none;
    padding: 0;
}

.about-card ul li {
    font-size: .92rem;
    color: var(--gray-600);
    padding: 5px 0 5px 16px;
    position: relative;
    border-bottom: 1px solid var(--gray-100);
}

.about-card ul li:last-child { border-bottom: none; }

.about-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--crimson);
    opacity: .5;
}

/* ========== STAVEBNÍCTVO ========== */
.stav-intro-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 72px;
    padding: 40px 44px;
    background: var(--charcoal);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.stav-intro-block::before {
    content: '';
    position: absolute;
    right: -60px; top: -60px;
    width: 240px; height: 240px;
    border-radius: 50%;
    background: var(--crimson);
    opacity: .07;
}

.stav-intro-text {
    color: rgba(255,255,255,.75);
    font-size: 1rem;
    line-height: 1.9;
    position: relative;
    z-index: 1;
}

.stav-intro-text strong { color: var(--white); font-weight: 600; }

.stav-intro-pills {
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.stav-pill {
    display: flex;
    align-items: center;
    gap: 14px;
    color: rgba(255,255,255,.8);
    font-family: var(--font-head);
    font-size: .82rem;
    font-weight: 500;
}

.stav-pill-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--crimson);
    flex-shrink: 0;
}

.stav-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.stav-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 4px;
    padding: 36px 32px 32px;
    transition: box-shadow var(--transition), transform var(--transition);
    position: relative;
    overflow: hidden;
}

.stav-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: var(--crimson);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.stav-card:hover {
    box-shadow: 0 16px 48px rgba(0,0,0,.1);
    transform: translateY(-4px);
}

.stav-card:hover::after { transform: scaleX(1); }

.stav-card-num {
    font-family: var(--font-head);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--gray-200);
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -.03em;
    transition: color var(--transition);
}

.stav-card:hover .stav-card-num { color: rgba(140,28,28,.12); }

.stav-card h3 {
    font-family: var(--font-head);
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--charcoal);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-200);
}

.stav-card ul {
    list-style: none;
    padding: 0;
}

.stav-card ul li {
    font-size: .9rem;
    color: var(--gray-600);
    padding: 6px 0 6px 18px;
    position: relative;
    border-bottom: 1px solid var(--gray-100);
    line-height: 1.5;
}

.stav-card ul li:last-child { border-bottom: none; }

.stav-card ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--crimson);
    font-size: .75rem;
    opacity: .6;
}

/* ========== REFERENCIE ========== */
.ref-header-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 48px;
    gap: 24px;
    flex-wrap: wrap;
}

.ref-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--gray-200);
}

.ref-tab {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    padding: 12px 28px;
    font-family: var(--font-head);
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--gray-400);
    cursor: pointer;
    transition: color var(--transition), border-color var(--transition);
}

.ref-tab.active,
.ref-tab:hover {
    color: var(--crimson);
    border-bottom-color: var(--crimson);
}

.ref-panel { display: none; }
.ref-panel.active { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.ref-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 4px;
    padding: 28px 28px 24px;
    transition: box-shadow var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
}

.ref-card:hover {
    box-shadow: 0 12px 40px rgba(0,0,0,.09);
    border-color: rgba(140,28,28,.2);
}

.ref-card-head {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-100);
}

.ref-card-icon {
    width: 36px; height: 36px;
    background: rgba(140,28,28,.08);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--crimson);
}

.ref-card h4 {
    font-family: var(--font-head);
    font-size: .88rem;
    font-weight: 700;
    color: var(--charcoal);
    line-height: 1.4;
}

.ref-card ul {
    list-style: none;
    padding: 0;
    flex: 1;
}

.ref-card ul li {
    font-size: .87rem;
    color: var(--gray-600);
    padding: 5px 0 5px 14px;
    position: relative;
    line-height: 1.5;
}

.ref-card ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 13px;
    width: 5px; height: 1px;
    background: var(--crimson);
    opacity: .5;
}

.ref-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-100);
}

.ref-meta-badge {
    font-size: .74rem;
    font-family: var(--font-head);
    font-weight: 600;
    letter-spacing: .06em;
    color: var(--crimson);
    background: rgba(140,28,28,.06);
    padding: 4px 10px;
    border-radius: 2px;
}

/* ========== KONTAKT ========== */
#kontakt { background: var(--dark); }

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 80px;
    align-items: start;
}

.contact-info-block { color: rgba(255,255,255,.7); }

.contact-item {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 0 20px;
    align-items: start;
    padding: 24px 0;
    border-bottom: 1px solid rgba(255,255,255,.07);
}

.contact-item:first-child { padding-top: 0; }

.contact-item-icon {
    width: 44px; height: 44px;
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--crimson-light);
    flex-shrink: 0;
}

.contact-item-label {
    font-family: var(--font-head);
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: rgba(255,255,255,.3);
    margin-bottom: 5px;
}

.contact-item-value {
    font-size: .95rem;
    color: rgba(255,255,255,.75);
    line-height: 1.6;
}

.contact-item-value a { color: rgba(255,255,255,.75); }
.contact-item-value a:hover { color: var(--crimson-light); }

.contact-reg {
    margin-top: 28px;
    padding: 20px;
    border: 1px solid rgba(255,255,255,.06);
    border-radius: 4px;
    font-size: .8rem;
    color: rgba(255,255,255,.3);
    line-height: 2;
}

/* Contact Form */
.contact-form-wrap {
    background: rgba(255,255,255,.03);
    border: 1px solid rgba(255,255,255,.07);
    border-radius: 4px;
    padding: 40px 36px;
}

.form-title {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,.07);
}

.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }

.form-group label {
    font-family: var(--font-head);
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: rgba(255,255,255,.38);
}

.form-group input,
.form-group textarea {
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 3px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: .93rem;
    padding: 13px 16px;
    transition: border-color var(--transition), background var(--transition);
    outline: none;
    width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,.2); }

.form-group input:focus,
.form-group textarea:focus {
    border-color: rgba(140,28,28,.6);
    background: rgba(255,255,255,.06);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-submit {
    background: var(--crimson);
    color: var(--white);
    border: none;
    border-radius: 3px;
    font-family: var(--font-head);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 15px 32px;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    align-self: flex-start;
}

.form-submit:hover {
    background: var(--crimson-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(140,28,28,.4);
}

.form-notice {
    font-size: .86rem;
    padding: 12px 16px;
    border-radius: 3px;
    border-left: 3px solid;
    display: none;
    font-family: var(--font-head);
}

.form-notice.success { background: rgba(34,197,94,.1); color: #86efac; border-color: #22c55e; display: block; }
.form-notice.error   { background: rgba(239,68,68,.1);  color: #fca5a5; border-color: #ef4444; display: block; }

/* ========== FOOTER ========== */
#site-footer {
    background: #0a0a0a;
    border-top: 1px solid rgba(255,255,255,.05);
    color: rgba(255,255,255,.25);
    text-align: center;
    font-family: var(--font-head);
    font-size: .72rem;
    letter-spacing: .06em;
    padding: 28px 24px;
}

#site-footer a { color: rgba(255,255,255,.25); }
#site-footer a:hover { color: var(--crimson-light); }

/* ========== RESPONSIVE ========== */
@media (max-width: 900px) {
    .about-layout,
    .stav-cards,
    .contact-layout { grid-template-columns: 1fr; gap: 40px; }

    .stav-intro-block { grid-template-columns: 1fr; }

    .ref-panel.active { grid-template-columns: 1fr; }

    .about-stat-row { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .section { padding: 80px 0; }

    .site-nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px; left: 0; right: 0;
        background: var(--dark);
        padding: 8px 0 16px;
        gap: 0;
        border-top: 1px solid rgba(255,255,255,.06);
    }

    .site-nav.open { display: flex; }
    .site-nav a::after { display: none; }
    .site-nav a { padding: 12px 24px; font-size: .82rem; }
    .site-nav a.active { color: var(--crimson-light); }
    .nav-toggle { display: flex; }

    .hero-content h1 { font-size: 2.2rem; }
    .form-row { grid-template-columns: 1fr; }
    .ref-tabs { flex-wrap: wrap; }
    .contact-form-wrap { padding: 28px 20px; }
}

@media (max-width: 480px) {
    .container { padding: 0 20px; }
    .hero-actions { flex-direction: column; }
    .btn-primary, .btn-ghost { width: 100%; justify-content: center; }
    .about-stat-row { grid-template-columns: 1fr; }
}