/* ===========================================================================
   zivemapy.cz - design system
   Dark navy / cream alternujici sekce, Lexend, emerald accent, pill tlacitka.
   =========================================================================== */

:root {
    --bg-base:       #0a0e17;
    --bg-deep:       #060912;
    --text:          #eef2f8;
    --text-soft:     #b8c2d4;
    --text-muted:    #8a96aa;
    --text-dim:      #5a6478;

    --accent:        #2f6fb8;
    --accent-light:  #86b8d8;
    --accent-glow:   rgba(134, 184, 216, 0.35);
    --accent-bg:     rgba(47, 111, 184, 0.12);
    --accent-border: rgba(134, 184, 216, 0.3);
    --accent-2:      #d5232a;
    --accent-2-light:#ff6b63;

    --warn:          #f0b86a;
    --danger:        #e87070;

    --border:        rgba(255, 255, 255, 0.08);
    --border-soft:   rgba(255, 255, 255, 0.04);
    --border-strong: rgba(255, 255, 255, 0.14);

    --light-bg:      #f2ebdf;
    --light-fg:      #14170f;
    --light-muted:   #6b6558;
    --light-border:  rgba(10, 14, 23, 0.1);
    --light-card:    #fffdf8;
    --light-accent:  #1d5490;

    --font-body:     'Lexend', system-ui, -apple-system, sans-serif;
    --max-w:         1280px;
    --gutter:        clamp(1.25rem, 5vw, 4rem);
    --section-py:    clamp(4.5rem, 9vw, 8rem);
    --ease-out:      cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg-base);
    color: var(--text);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--accent); color: #06170f; }

/* --- ambientni pozadi na tmavych sekcich --- */
.bg-glow, .bg-grid, .bg-noise {
    position: fixed; inset: 0; pointer-events: none;
}
.bg-glow {
    z-index: -3;
    background:
        radial-gradient(60% 45% at 15% 0%, rgba(47, 111, 184, 0.2), transparent 60%),
        radial-gradient(50% 40% at 100% 25%, rgba(134, 184, 216, 0.12), transparent 60%),
        var(--bg-base);
}
.bg-grid {
    z-index: -2;
    background-image:
        linear-gradient(var(--border-soft) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: linear-gradient(#000, transparent 70%);
    mask-image: linear-gradient(#000, transparent 70%);
}
.bg-noise {
    z-index: -1;
    opacity: 0.035;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--section-py) 0; position: relative; }
.light-section { background: var(--light-bg); color: var(--light-fg); padding: var(--section-py) 0; }
.light-section .text-muted { color: var(--light-muted); }

/* --- typografie --- */
h1, h2, h3, h4 { margin: 0; font-weight: 900; letter-spacing: -0.03em; line-height: 1.05; }
h1 { font-size: clamp(2.4rem, 6.4vw, 5rem); letter-spacing: -0.04em; }
h2 { font-size: clamp(1.9rem, 4.6vw, 3.2rem); letter-spacing: -0.035em; }
h3 { font-size: clamp(1.25rem, 2vw, 1.55rem); font-weight: 800; letter-spacing: -0.02em; }
p { margin: 0 0 1em; font-weight: 300; color: var(--text-soft); }
.light-section p { color: var(--light-muted); }
.lede { font-size: clamp(1.05rem, 2vw, 1.3rem); font-weight: 300; color: var(--text-soft); }

.eyebrow svg { width: 14px; height: 14px; flex-shrink: 0; }
.eyebrow {
    display: inline-flex; align-items: center; gap: 0.5em;
    font-size: 0.76rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--accent-light);
    padding: 0.5rem 1rem; border-radius: 100px;
    background: var(--accent-bg); border: 1px solid var(--accent-border);
    margin-bottom: 1.1rem;
}
.light-section .eyebrow { color: var(--light-accent); background: rgba(29, 84, 144, 0.1); border-color: rgba(29, 84, 144, 0.3); }

/* --- tlacitka --- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.55rem;
    font-family: inherit; font-weight: 700; font-size: 0.95rem;
    padding: 0.95rem 2rem; border-radius: 100px; border: none; min-height: 48px;
    transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), background 0.25s var(--ease-out), color .25s var(--ease-out), border-color .25s var(--ease-out);
    white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    color: #08111f;
    box-shadow: 0 4px 24px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.35); }
.btn-secondary {
    background: rgba(255, 255, 255, 0.04); color: var(--text); border: 1px solid var(--border-strong);
    backdrop-filter: blur(8px);
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.09); border-color: var(--accent-border); color: var(--accent-light); transform: translateY(-2px); }
.light-section .btn-secondary { background: rgba(10, 14, 23, 0.04); color: var(--light-fg); border-color: var(--light-border); }
.light-section .btn-secondary:hover { background: rgba(10, 14, 23, 0.08); border-color: var(--light-accent); color: var(--light-accent); }
.btn-block { width: 100%; }
.btn-sm { padding: 0.65rem 1.4rem; min-height: 38px; font-size: 0.85rem; }

/* --- nav --- */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 200; height: 76px;
    background: rgba(10, 14, 23, 0.7); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background 0.25s, border-color 0.25s;
}
.nav.scrolled { background: rgba(10, 14, 23, 0.92); border-bottom-color: var(--border-strong); }
.nav-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gutter); height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.nav-logo { display: flex; align-items: center; gap: 0.6rem; font-weight: 800; font-size: 1.05rem; color: var(--text); flex-shrink: 0; }
.nav-logo img { width: 28px; height: 28px; border-radius: 8px; box-shadow: 0 0 14px rgba(44, 84, 144, 0.45); }
.nav-logo .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent-light); box-shadow: 0 0 12px var(--accent-glow); }
.nav-center { flex: 1; display: flex; justify-content: center; min-width: 0; }
.nav-links { display: flex; align-items: center; height: 76px; }
.nav-links a {
    color: var(--text-soft); font-size: 0.86rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
    padding: 0 1.4rem; height: 100%; display: flex; align-items: center; border-right: 1px solid var(--border);
    transition: color 0.2s, background 0.2s;
}
.nav-links a:last-child { border-right: none; }
.nav-links a:hover, .nav-links a.active { color: var(--accent-light); background: var(--accent-bg); box-shadow: inset 0 -3px 0 var(--accent-light); }
.nav-cta-wrap { flex-shrink: 0; }
.nav-cta { padding: 0.65rem 1.5rem; min-height: 42px; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }
.nav-phone { display: none; }
.nav-hamburger {
    display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
    width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--border-strong); background: rgba(255, 255, 255, 0.03);
}
.nav-hamburger span { width: 18px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
    position: fixed; top: 76px; left: 0; right: 0; z-index: 199;
    background: rgba(6, 9, 18, 0.98); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    max-height: 0; overflow: hidden; transition: max-height 0.3s var(--ease-out);
}
.mobile-menu.open { max-height: 480px; }
.mobile-menu-inner { padding: 1rem var(--gutter) 1.6rem; display: flex; flex-direction: column; gap: 0.2rem; }
.mobile-menu a.link { padding: 0.9rem 0.2rem; font-weight: 600; border-bottom: 1px solid var(--border-soft); color: var(--text-soft); }
.mobile-menu .btn { margin-top: 1rem; }

@media (max-width: 980px) {
    .nav-center, .nav-cta-wrap { display: none; }
    .nav-hamburger { display: flex; }
}

/* --- karty --- */
.card {
    background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border);
    border-radius: 20px; padding: 1.8rem;
    backdrop-filter: blur(6px);
}
.light-section .card { background: var(--light-card); border-color: var(--light-border); box-shadow: 0 2px 16px rgba(20, 23, 15, 0.05); }

/* --- formulare --- */
.field { margin-bottom: 1rem; }
.field label { display: block; font-size: 0.82rem; font-weight: 700; margin-bottom: 0.4rem; color: var(--text-soft); text-transform: uppercase; letter-spacing: 0.04em; }
.light-section .field label { color: var(--light-muted); }
.field input, .field textarea, .field select {
    width: 100%; padding: 0.85rem 1rem; border-radius: 12px;
    background: rgba(255, 255, 255, 0.04); border: 1px solid var(--border-strong); color: var(--text);
    font-family: inherit; font-size: 0.95rem; font-weight: 400;
    transition: border-color .2s, background .2s;
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-dim); }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); background: rgba(47, 111, 184, 0.08); }
.light-section .field input, .light-section .field textarea, .light-section .field select {
    background: #fff; border-color: var(--light-border); color: var(--light-fg);
}
.field textarea { resize: vertical; min-height: 90px; }
.field-hint { font-size: 0.78rem; color: var(--text-dim); margin-top: 0.35rem; }
.form-msg { padding: 0.9rem 1.1rem; border-radius: 12px; font-size: 0.9rem; font-weight: 600; margin-bottom: 1rem; }
.form-msg.ok { background: rgba(47, 111, 184, 0.14); border: 1px solid var(--accent-border); color: var(--accent-light); }
.form-msg.err { background: rgba(232, 112, 112, 0.12); border: 1px solid rgba(232, 112, 112, 0.35); color: var(--danger); }

/* --- footer --- */
footer { border-top: 1px solid var(--border); padding: 3rem 0 2.4rem; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between; align-items: flex-start; }
.footer-brand { font-weight: 800; color: var(--text); margin-bottom: 0.4rem; }
.footer-legal { font-size: 0.82rem; color: var(--text-dim); line-height: 1.7; }
.footer-legal a { text-decoration: underline; text-underline-offset: 3px; }
.footer-attrib { font-size: 0.78rem; color: var(--text-dim); margin-top: 1.4rem; }
.footer-attrib a { text-decoration: underline; }

/* --- feature polozky (homepage, /geohry) --- */
.feat-item { display: flex; gap: 1rem; align-items: flex-start; }
.feat-ico {
    flex-shrink: 0; width: 46px; height: 46px; border-radius: 14px;
    background: var(--accent-bg); border: 1px solid var(--accent-border);
    display: flex; align-items: center; justify-content: center; color: var(--accent-light);
}
.feat-ico svg { width: 22px; height: 22px; }

/* --- telefonni ramecek se skutecnou fotkou mista na displeji (zadani 3) --- */
.phone-mock { display: flex; justify-content: center; padding: .5rem 0; }
.phone-mock-frame { width: 200px; max-width: 60vw; background: #0c0c0f; border-radius: 34px; padding: 8px; box-shadow: 0 24px 50px -18px rgba(0, 0, 0, .5); border: 1px solid rgba(255, 255, 255, .08); }
.phone-mock-notch { width: 70px; height: 20px; background: #0c0c0f; border-radius: 0 0 14px 14px; margin: 0 auto; position: relative; z-index: 2; }
.phone-mock-screen {
    aspect-ratio: 9 / 19; border-radius: 26px; margin-top: -20px; overflow: hidden; position: relative;
    background: linear-gradient(160deg, color-mix(in srgb, var(--pm-color, #2f6fb8) 35%, #0a0e17), #0a0e17);
}
.pm-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.pm-status { position: absolute; top: 0; left: 0; right: 0; height: 7%; background: linear-gradient(180deg, rgba(0,0,0,.35), transparent); z-index: 1; }
.pm-pin-card {
    position: absolute; left: 8%; right: 8%; bottom: 8%; z-index: 1;
    display: flex; align-items: center; gap: .4em;
    background: rgba(10, 14, 23, .72); backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, .14); border-radius: 100px;
    padding: .5rem .8rem; font-size: .72rem; font-weight: 800; color: #fff;
}
.pm-pin-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; background: var(--pm-color, #2f6fb8); box-shadow: 0 0 8px color-mix(in srgb, var(--pm-color, #2f6fb8) 70%, transparent); }

/* --- obecne utility --- */
.grid { display: grid; gap: 1.4rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.stack { display: flex; flex-direction: column; gap: 0.6rem; }
.row { display: flex; align-items: center; gap: 0.8rem; }
.row-wrap { flex-wrap: wrap; }
.pill-badge {
    display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.78rem; font-weight: 700;
    padding: 0.4rem 0.85rem; border-radius: 100px; background: var(--accent-bg); color: var(--accent-light); border: 1px solid var(--accent-border);
}