/* =========================================================
   SC Dubina Hero – main.css
   ========================================================= */

:root {
	--accent: #6db8e8;
	--accent-2: #3d8fc4;
	--accent-light: #aee0ff;
	--accent-amber: #e8924a;
	--dark: #0a1628;
	--navy-line: rgba(255,255,255,.10);
	--font: 'Poppins', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); line-height: 1.65; background: var(--dark); color: #fff; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 28px; }

/* ---------- Tlačítka ---------- */
.btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 8px;
	padding: 15px 32px; border-radius: 999px;
	font-weight: 700; font-size: .92rem; cursor: pointer;
	border: 1.5px solid transparent;
	transition: transform .15s ease, box-shadow .2s;
	white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-lg { padding: 18px 44px; font-size: 1.02rem; text-transform: uppercase; letter-spacing: .05em; }
.btn-accent {
	background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 45%, var(--accent-2) 100%);
	color: #08243b; box-shadow: 0 10px 28px rgba(61,143,196,.4);
}
.btn-accent:hover { box-shadow: 0 14px 36px rgba(61,143,196,.55); }

/* ---------- Hlavička ---------- */
.site-header {
	position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
	background: rgba(10,22,40,.85); backdrop-filter: blur(12px);
	border-bottom: 1px solid var(--navy-line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; gap: 20px; }
.logo img { max-height: 52px; width: auto; }
.logo-text { font-weight: 900; font-size: 1.25rem; letter-spacing: .03em; color: #fff; }
.header-actions { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.lang-switch { display: flex; background: rgba(255,255,255,.08); border-radius: 999px; padding: 4px; }
.lang-btn { background: none; border: none; padding: 7px 15px; font-size: .82rem; font-weight: 700; cursor: pointer; color: rgba(255,255,255,.65); border-radius: 999px; }
.lang-btn.is-active { background: #fff; color: var(--dark); }

/* ---------- Hero ---------- */
.hero {
	position: relative; min-height: 100vh;
	display: flex; flex-direction: column; justify-content: center; align-items: center;
	text-align: center;
	background-color: var(--dark);   /* fallback, ať nikdy nevznikne prázdná plocha */
	background-size: cover; background-position: center; background-repeat: no-repeat;
	color: #fff; padding: 80px 0;
}
.hero-inner { max-width: 1050px; }
.eyebrow {
	display: inline-block; font-size: .82rem; font-weight: 700;
	letter-spacing: .3em; text-transform: uppercase;
	color: var(--accent-amber); margin-bottom: 18px;
}
.hero-title {
	font-weight: 800; font-size: clamp(3.4rem, 12vw, 9.5rem);
	line-height: .95; letter-spacing: -.01em; margin: 4px 0 24px;
	color: #fff; text-shadow: 0 4px 40px rgba(0,0,0,.4);
}
.hero-title .line2 { color: var(--accent); }
.hero-subtitle { font-size: clamp(1.05rem, 2vw, 1.3rem); color: rgba(255,255,255,.9); margin-bottom: 36px; }
.scroll-hint {
	position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%);
	font-size: .76rem; letter-spacing: .2em; text-transform: uppercase; color: rgba(255,255,255,.7);
}
.scroll-hint::after { content: ''; display: block; width: 1px; height: 40px; background: rgba(255,255,255,.4); margin: 12px auto 0; }

/* ---------- Responzivita ---------- */
@media (max-width: 768px) {
	.header-inner { height: 70px; }
	.logo img { max-height: 42px; }
	.btn { padding: 12px 22px; font-size: .85rem; }
	.btn-lg { padding: 15px 34px; }
	.hero-title { font-size: clamp(2.8rem, 16vw, 5rem); }
}