/* ============================================================
   Sigma System — Base CSS (adapted for dodavkypaskov.cz)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* === VARIABLES — DARK === */
:root {
    --bg-0:        #060d16;
    --bg-1:        #0a1628;
    --bg-2:        #0f1e30;
    --bg-3:        #152640;
    --bg-card:     #0f1e30;
    --bg-hover:    #152234;
    --border:      #1a2f45;
    --border-2:    #234060;
    --accent:      #00b4d8;
    --accent-2:    #0077a8;
    --accent-glow: rgba(0, 180, 216, .18);
    --text:        #e2e8f0;
    --text-2:      #94a3b8;
    --text-3:      #4a6380;
    --green:       #22c55e;
    --amber:       #f59e0b;
    --purple:      #a78bfa;
    --red:         #f87171;
    --shadow:      0 4px 32px rgba(0, 0, 0, .5);
    --shadow-lg:   0 12px 60px rgba(0, 0, 0, .6);
    --radius:      10px;
    --radius-lg:   16px;
    --radius-xl:   24px;
}

/* === RESET & BASE === */
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-0);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--text); }
img { max-width: 100%; display: block; }

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === GRADIENT TEXT === */
.gradient-text {
    background: linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === BUTTONS === */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: .95rem;
    border: none;
    cursor: pointer;
    transition: transform .2s, box-shadow .2s, background .2s;
    text-decoration: none;
}
.btn-primary:hover {
    background: var(--accent-2);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}
.btn-primary.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: 12px; }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-2);
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: .95rem;
    border: 1.5px solid var(--border-2);
    cursor: pointer;
    transition: background .2s, color .2s, border-color .2s;
    text-decoration: none;
}
.btn-ghost:hover { background: var(--bg-2); color: var(--text); }
.btn-ghost.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: 12px; }

/* === NAVBAR === */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 900;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: background .3s, border-color .3s, backdrop-filter .3s;
}
.navbar.scrolled {
    background: rgba(6, 13, 22, .88);
    border-color: var(--border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.nav-inner {
    display: flex;
    align-items: center;
    gap: 2rem;
    height: 64px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
    color: var(--text);
}
.nav-logo:hover { color: var(--text); }
.logo-icon-box {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .95rem;
    color: #fff;
    flex-shrink: 0;
}
.logo-text  { font-size: .95rem; font-weight: 700; color: var(--text); letter-spacing: -.02em; line-height: 1.2; }
.logo-sub-text { font-size: .7rem; color: var(--text-3); display: block; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-left: .5rem;
}
.nav-links a { color: var(--text-2); font-size: .88rem; font-weight: 500; text-decoration: none; transition: color .2s; }
.nav-links a:hover { color: var(--text); }

.nav-actions { display: flex; align-items: center; gap: .75rem; margin-left: auto; }

.btn-nav-cta {
    background: var(--accent);
    color: #fff;
    font-size: .85rem;
    font-weight: 600;
    text-decoration: none;
    padding: 9px 18px;
    border-radius: var(--radius);
    transition: background .2s, transform .2s, box-shadow .2s;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.btn-nav-cta:hover { background: var(--accent-2); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 16px var(--accent-glow); }

.nav-hamburger {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    width: 36px; height: 36px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: .95rem;
    margin-left: auto;
    transition: background .2s, border-color .2s;
}
.nav-hamburger:hover { background: var(--bg-2); border-color: var(--border-2); }

.nav-mobile {
    display: none;
    flex-direction: column;
    padding: 16px 24px;
    background: var(--bg-1);
    border-bottom: 1px solid var(--border);
    gap: 4px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
    color: var(--text-2);
    padding: 10px 0;
    font-size: .95rem;
    font-weight: 500;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    transition: color .2s;
}
.nav-mobile a:hover { color: var(--text); }
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile .btn-primary { margin-top: 8px; justify-content: center; border-bottom: none; padding: 12px 20px; }

/* === HERO === */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding: 100px 0 60px;
    overflow: hidden;
    text-align: center;
}
.hero::before {
    content: '';
    position: absolute;
    inset: -40px;
    background-image: radial-gradient(circle at 1px 1px, rgba(0, 180, 216, .11) 1px, transparent 0);
    background-size: 40px 40px;
    animation: gridDrift 25s linear infinite;
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 100% 70% at 50% 110%, transparent 30%, var(--bg-0) 75%);
    pointer-events: none;
}
.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    pointer-events: none;
    animation: orbFloat 10s ease-in-out infinite;
}
.hero-orb-1 { width: 700px; height: 700px; background: radial-gradient(circle, rgba(0,180,216,.18), transparent 70%); top: -200px; left: -200px; animation-delay: 0s; }
.hero-orb-2 { width: 500px; height: 500px; background: radial-gradient(circle, rgba(167,139,250,.13), transparent 70%); top: 20%; right: -150px; animation-delay: 4s; }
.hero-orb-3 { width: 400px; height: 400px; background: radial-gradient(circle, rgba(34,197,94,.08), transparent 70%); bottom: 0; left: 30%; animation-delay: 7s; }

.hero .container { position: relative; z-index: 1; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-2);
    color: var(--accent);
    font-size: .8rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 1.5rem;
    letter-spacing: .04em;
}
.hero-title {
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -.03em;
    color: var(--text);
    margin-bottom: 1.25rem;
}
.hero-sub {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--text-2);
    max-width: 640px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}
.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

/* Hero stats bar */
.hero-stats {
    display: flex;
    align-items: stretch;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    max-width: 720px;
    margin: 0 auto;
}
.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 24px;
    gap: 3px;
    flex: 1;
    border-right: 1px solid var(--border);
}
.hero-stat:last-child { border-right: none; }
.stat-val  { font-size: 1.7rem; font-weight: 900; color: var(--accent); line-height: 1; letter-spacing: -.04em; }
.stat-lbl  { font-size: .7rem; color: var(--text-2); text-align: center; line-height: 1.4; }

/* === SECTION BASE === */
.section { padding: 88px 0; }
.section-alt {
    background: var(--bg-1);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-head { margin-bottom: 2.5rem; }
.section-head .tag {
    display: inline-block;
    font-size: .7rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: .1em;
    margin-bottom: .6rem;
}
.section-head h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -.03em;
    color: var(--text);
    margin-bottom: .7rem;
}
.section-head p { font-size: .95rem; color: var(--text-2); max-width: 640px; line-height: 1.7; }

/* === VEHICLE GRID & CARDS === */
.vehicles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.v-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform .25s, box-shadow .25s, border-color .25s;
}
.v-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-2); }

.v-img { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--bg-2); }
.v-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.v-card:hover .v-img img { transform: scale(1.04); }

.v-badge {
    position: absolute;
    top: 12px; left: 12px;
    background: var(--accent);
    color: #fff;
    font-size: .68rem;
    font-weight: 700;
    padding: 4px 11px;
    border-radius: 100px;
    letter-spacing: .05em;
    text-transform: uppercase;
}
.v-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; gap: 10px; }
.v-title { font-size: 1.05rem; font-weight: 700; color: var(--text); letter-spacing: -.02em; }
.v-sub   { font-size: .82rem; color: var(--text-2); line-height: 1.5; }

.v-specs { list-style: none; display: flex; flex-direction: column; gap: 6px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.v-spec  { display: flex; align-items: center; gap: 8px; font-size: .8rem; color: var(--text-2); }
.v-spec i { font-size: .76rem; color: var(--accent); width: 14px; text-align: center; flex-shrink: 0; }

.v-price-block { margin-top: auto; display: flex; flex-direction: column; gap: 10px; }
.v-price { display: flex; align-items: baseline; gap: 4px; }
.v-price .amount { font-size: 1.8rem; font-weight: 900; color: var(--accent); letter-spacing: -.04em; line-height: 1; }
.v-price .unit   { font-size: .85rem; color: var(--text-2); }

.v-price-feats { list-style: none; display: flex; flex-direction: column; gap: 5px; }
.v-price-feats li { display: flex; align-items: center; gap: 7px; font-size: .77rem; color: var(--text-2); }
.v-price-feats li i { font-size: .68rem; color: var(--green); flex-shrink: 0; width: 12px; }

/* === FEATURES / USPs === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color .25s, box-shadow .25s, transform .25s;
}
.feature-card:hover { border-color: var(--border-2); box-shadow: var(--shadow); transform: translateY(-4px); }
.feature-icon {
    width: 48px; height: 48px;
    background: var(--accent-glow);
    color: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.feature-card h3 { font-size: .95rem; font-weight: 700; color: var(--text); }
.feature-card p  { font-size: .85rem; color: var(--text-2); line-height: 1.65; }

/* === STEPS === */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 22px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color .25s, transform .25s;
}
.step-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.step-num { font-size: 2.4rem; font-weight: 900; color: var(--border-2); letter-spacing: -.05em; line-height: 1; }
.step-card h3 { font-size: .95rem; font-weight: 700; color: var(--text); }
.step-card p  { font-size: .85rem; color: var(--text-2); line-height: 1.65; }

/* === DOCUMENTS === */
.docs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 820px; margin: 0 auto; }
.doc-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: border-color .25s, transform .25s;
}
.doc-card:hover { border-color: var(--border-2); transform: translateY(-3px); }
.doc-card-head { display: flex; align-items: center; gap: 14px; }
.doc-icon {
    width: 48px; height: 48px;
    background: var(--accent-glow);
    color: var(--accent);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; flex-shrink: 0;
}
.doc-card h3 { font-size: 1rem; font-weight: 700; color: var(--text); }
.doc-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.doc-list li { display: flex; align-items: center; gap: 10px; font-size: .875rem; color: var(--text-2); }
.doc-list li i { font-size: .72rem; color: var(--accent); flex-shrink: 0; width: 14px; }

/* === AREAS === */
.areas-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.area-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 14px;
    display: flex; flex-direction: column; align-items: center;
    gap: 6px; text-align: center; text-decoration: none; color: var(--text);
    transition: border-color .25s, transform .25s, box-shadow .25s;
}
.area-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow); color: var(--text); }
.area-card i   { font-size: 1.2rem; color: var(--accent); }
.area-name     { font-size: .88rem; font-weight: 600; color: var(--text); }
.area-dist     { font-size: .74rem; color: var(--text-3); }

/* === FAQ === */
.faq-wrap { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; }
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color .2s;
}
.faq-item.open { border-color: var(--border-2); }
.faq-q {
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; padding: 18px 22px; cursor: pointer;
    font-size: .92rem; font-weight: 600; color: var(--text);
    user-select: none; transition: color .2s;
}
.faq-q:hover { color: var(--accent); }
.faq-ico {
    flex-shrink: 0; width: 22px; height: 22px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-3); font-size: .85rem;
    transition: transform .25s, color .2s;
}
.faq-item.open .faq-ico { transform: rotate(45deg); color: var(--accent); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a-inner { padding: 0 22px 18px; font-size: .9rem; color: var(--text-2); line-height: 1.7; }

/* === CTA BANNER === */
.cta-bar {
    background: linear-gradient(135deg, var(--bg-2) 0%, var(--bg-1) 100%);
    border-top: 1px solid var(--border-2);
    border-bottom: 1px solid var(--border-2);
    padding: 64px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-bar::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse 60% 80% at 50% 0%, var(--accent-glow), transparent 70%);
    pointer-events: none;
}
.cta-bar .container { position: relative; }
.cta-bar h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -.03em; color: var(--text); margin-bottom: .6rem; }
.cta-bar p  { font-size: 1rem; color: var(--text-2); margin-bottom: 2rem; }
.cta-actions { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* === CONTACT === */
.contact-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 48px; align-items: start; }
.contact-items { display: flex; flex-direction: column; gap: 24px; }
.contact-item  { display: flex; align-items: flex-start; gap: 16px; }
.contact-ic {
    width: 44px; height: 44px;
    background: var(--accent-glow); color: var(--accent);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; flex-shrink: 0;
}
.contact-item h4 { font-size: .73rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); margin-bottom: 4px; }
.contact-item a  { font-size: .95rem; color: var(--text); font-weight: 500; text-decoration: none; transition: color .2s; }
.contact-item a:hover { color: var(--accent); }
.contact-item p  { font-size: .88rem; color: var(--text-2); margin: 2px 0; }
.contact-note    { font-size: .78rem; color: var(--text-3); }
.map-box { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); }
.map-box iframe { display: block; }

/* === FOOTER === */
.footer { background: var(--bg-1); border-top: 1px solid var(--border); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { font-size: .85rem; color: var(--text-2); margin-top: 12px; line-height: 1.7; max-width: 280px; }
.footer-col-title { font-size: .72rem; font-weight: 700; color: var(--text); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 12px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 3px; }
.footer-links a { font-size: .85rem; color: var(--text-2); text-decoration: none; padding: 3px 0; transition: color .2s; }
.footer-links a:hover { color: var(--accent); }
.footer-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-bottom: 4px; }
.footer-logo .logo-text { color: var(--text); }
.footer-bottom {
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 20px; border-top: 1px solid var(--border);
    font-size: .78rem; color: var(--text-3); flex-wrap: wrap; gap: 8px;
}

/* === FADE-IN === */
.fade-in { opacity: 0; transform: translateY(22px); transition: opacity .55s ease, transform .55s ease; }
.fade-in.visible { opacity: 1; transform: none; }

/* === ANIMATIONS === */
@keyframes gridDrift { from { transform: translate(0,0); } to { transform: translate(40px,40px); } }
@keyframes orbFloat  { 0%,100% { transform: translateY(0) scale(1); } 50% { transform: translateY(-40px) scale(1.04); } }
@keyframes fadeUp    { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:none; } }
.hero .container > * { animation: fadeUp .7s ease both; }
.hero .container > *:nth-child(1) { animation-delay: .1s; }
.hero .container > *:nth-child(2) { animation-delay: .2s; }
.hero .container > *:nth-child(3) { animation-delay: .35s; }
.hero .container > *:nth-child(4) { animation-delay: .5s; }
.hero .container > *:nth-child(5) { animation-delay: .65s; }

/* === RESPONSIVE === */
@media (max-width: 1100px) {
    .vehicles-grid  { grid-template-columns: repeat(2, 1fr); }
    .features-grid  { grid-template-columns: repeat(2, 1fr); }
    .footer-grid    { grid-template-columns: 1fr 1fr; gap: 28px; }
    .contact-grid   { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
    .steps-grid  { grid-template-columns: repeat(2, 1fr); }
    .areas-grid  { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .btn-nav-cta { font-size: .8rem; padding: 8px 13px; }

    .hero { padding: 88px 0 48px; min-height: auto; }
    .vehicles-grid  { grid-template-columns: 1fr; }
    .features-grid  { grid-template-columns: 1fr; }
    .steps-grid     { grid-template-columns: 1fr; }
    .docs-grid      { grid-template-columns: 1fr; }
    .areas-grid     { grid-template-columns: repeat(2, 1fr); }
    .footer-grid    { grid-template-columns: 1fr; gap: 24px; }
    .footer-brand p { max-width: 100%; }
    .section { padding: 60px 0; }
    .cta-bar { padding: 48px 0; }

    .hero-stats { flex-wrap: wrap; }
    .hero-stat  { flex: 0 0 50%; border-right: none; border-bottom: 1px solid var(--border); }
    .hero-stat:nth-child(odd)      { border-right: 1px solid var(--border); }
    .hero-stat:nth-last-child(-n+2) { border-bottom: none; }
}
@media (max-width: 480px) {
    .hero-title { font-size: 2rem; }
    .hero-sub   { font-size: .95rem; }
    .areas-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-stat  { padding: 14px 16px; }
    .stat-val   { font-size: 1.4rem; }
}