/* CSS Variables for theming */
:root {
	--bg: #0b3a77; /* Blue background */
	--brand-blue: var(--bg); /* Header/nav use same blue as site background */
	--text: #ffffff; /* White text by default */
	--text-soft: #e6eef7;
	--header-bg: var(--brand-blue); /* Header uses brand blue */
	--header-ink: #ffffff; /* Header text white */
	--panel-bg: rgba(255,255,255,0.12);
	--border: rgba(255,255,255,0.25);
	--accent: #4da3ff; /* Light blue accent */
	--accent-hover: #2d8be6;
	--accent-active: #1c6ebd;
	--shadow-sm: 0 2px 4px rgba(0,0,0,0.25);
	--shadow-md: 0 4px 12px rgba(0,0,0,0.35);
	--focus-ring: 2px solid var(--accent);
	--transition: 0.25s cubic-bezier(.4,.14,.3,1);
}

body.dark {
	--bg: #0f1b28;
	--text: #e2ecf5;
	--text-soft: #b9c9d6;
	--header-bg: var(--brand-blue);
	--header-ink: #e2ecf5;
	--panel-bg: #1f3a4d;
	--border: #2d4d61;
	--accent: #4da3ff;
	--accent-hover: #328be6;
	--accent-active: #1c6ebd;
	--shadow-sm: 0 2px 4px rgba(0,0,0,0.5);
	--shadow-md: 0 4px 14px rgba(0,0,0,0.55);
	--focus-ring: 2px solid var(--accent);
}

body { font-family: Arial, sans-serif; margin:0; background:var(--bg); color:var(--text); transition:background var(--transition), color var(--transition); }
main { padding:24px; max-width:1000px; margin:0 auto; }
.site-header { background:var(--header-bg) !important; color:var(--header-ink); width:100%; box-shadow:var(--shadow-sm); transition:background var(--transition), box-shadow var(--transition), color var(--transition); position:sticky; top:0; z-index:1000; mix-blend-mode:normal; isolation:isolate; }
.header-inner { max-width:1200px; margin:0 auto; display:flex; align-items:center; justify-content:center; gap:48px; padding:18px 42px; }
.actions-group { display:flex; align-items:center; gap:12px; }
.menu-toggle { display:none; background:var(--accent); color:#fff; border:0; padding:8px 14px; font-size:18px; border-radius:6px; cursor:pointer; transition:background var(--transition), transform var(--transition); }
.menu-toggle:hover { background:var(--accent-hover); transform:translateY(-2px); }
.menu-toggle:active { background:var(--accent-active); transform:translateY(0); }
.menu-toggle:focus { outline:var(--focus-ring); outline-offset:2px; }
.site-header .brand { display:flex; align-items:center; gap:12px; }
.site-header .brand a { font-size:18px; font-weight:600; color:var(--header-ink); text-decoration:none; position:relative; }
.brand a::after { content:''; position:absolute; left:0; bottom:-4px; width:0; height:3px; background:var(--accent); transition:width .35s ease; border-radius:2px; }
.brand a:hover::after { width:100%; }
.brand .logo { display:inline-block; width:110px; height:auto; filter:none; }
@media (max-width: 700px) {
	.brand .logo { width:96px; }
}
.main-nav { flex:1; background: var(--header-bg) !important; }
.nav-list { list-style:none; padding:0; margin:0; display:flex; gap:42px; justify-content:center; }
.site-header .nav-list a { text-decoration:none; color:var(--header-ink); font-weight:600; position:relative; padding:10px 4px; font-size:17px; transition:color var(--transition); }
.site-header .nav-list a:hover { color:var(--accent); }
.site-header .nav-list a::after { content:''; position:absolute; left:0; bottom:-6px; height:3px; width:0; background:var(--accent); transition:width .35s ease; border-radius:2px; }
.site-header .nav-list a:hover::after { width:100%; }
.site-header .nav-list a.active { color:var(--accent-active); }
.site-header .nav-list a.active::after { width:100%; background:var(--accent-active); }
.lang-switcher { position:relative; }
.lang-switcher button, .theme-toggle { background:var(--accent); color:#fff; border:0; padding:12px 20px; cursor:pointer; font-size:15px; border-radius:10px; font-weight:600; display:inline-flex; align-items:center; gap:8px; transition:background var(--transition), transform var(--transition), box-shadow var(--transition); position:relative; box-shadow:0 3px 10px rgba(0,0,0,0.15); }
.lang-switcher button#langToggle {
	box-shadow:0 0 0 3px rgba(255,255,255,0.6), 0 0 0 6px rgba(11,97,164,0.35);
}
body.dark .lang-switcher button#langToggle {
	box-shadow:0 0 0 3px rgba(24,48,64,0.9), 0 0 0 6px rgba(77,163,255,0.35);
}
.lang-switcher button:hover, .theme-toggle:hover { background:var(--accent-hover); transform:translateY(-3px); box-shadow:var(--shadow-md); }
.lang-switcher button:active, .theme-toggle:active { background:var(--accent-active); transform:translateY(0); box-shadow:var(--shadow-sm); }
.theme-toggle { font-size:16px; }
.lang-switcher ul { position:absolute; top:calc(100% + 4px); right:0; background:var(--panel-bg); border:1px solid var(--border); padding:4px; list-style:none; margin:0; width:130px; box-shadow:var(--shadow-md); border-radius:8px; animation:fadeIn .25s ease; z-index:1100; }
.lang-switcher ul.hidden { display:none; }
.lang-switcher ul li { margin:0; }
.lang-switcher ul li button { width:100%; background:transparent; color:var(--text); border:0; padding:8px 10px; text-align:left; cursor:pointer; border-radius:4px; font-size:14px; transition:background var(--transition), color var(--transition); }
.lang-switcher ul li button:hover { background:var(--header-bg); color:var(--accent-active); }
main h2 { margin-top:40px; color:var(--text); }
main ul { margin-left:20px; }
button#btn { margin-top:24px; background:var(--accent); color:#fff; border:0; padding:12px 20px; cursor:pointer; border-radius:6px; font-size:15px; transition:background var(--transition), transform var(--transition), box-shadow var(--transition); }
button#btn:hover { background:var(--accent-hover); transform:translateY(-2px); box-shadow:var(--shadow-sm); }
button#btn:active { background:var(--accent-active); transform:translateY(0); }

/* Center content blur panel */
.content-panel {
	backdrop-filter: blur(14px) saturate(130%);
	-webkit-backdrop-filter: blur(14px) saturate(130%);
	background: var(--panel-bg);
	padding: 32px 42px;
	border-radius: 22px;
	box-shadow: var(--shadow-md);
	border: 1px solid var(--border);
	position: relative;
	overflow: hidden;
}
body.dark .content-panel {
	background: rgba(24,48,64,0.55);
	border: 1px solid rgba(255,255,255,0.18);
}
.content-panel h2:first-child { margin-top:0; }
.content-panel a { color: var(--accent); font-weight:600; text-decoration:none; }
.content-panel a:hover { text-decoration:underline; }

/* Background image scaffolding */
/* Per-page background images (replace placeholders with your files) */
/* Keep optional background images; the blue base ensures consistent branding */
body.home {
	background-image: url('images/home.jpg');
	background-position: center center;
	background-repeat: no-repeat;
	background-size: cover;
	background-attachment: fixed;
}
body.home.dark { background-image: url('images/home-dark.jpg'); }

body.m365 {
	background-image: url('images/m365.jpg');
	background-position: center center;
	background-repeat: no-repeat;
	background-size: cover;
	background-attachment: fixed;
}
body.m365.dark { background-image: url('images/m365-dark.jpg'); }

/* Strengthen readability for Microsoft 365 page in light mode */
body.m365:not(.dark) .content-panel {
	background: rgba(10, 47, 94, 0.36); /* deeper navy overlay for contrast */
	border: 1px solid rgba(255,255,255,0.28);
	color: #ffffff;
}
body.m365:not(.dark) .content-panel a {
	color: var(--accent);
}


body.contacts {
	background-image: url('images/contacts.jpg');
	background-position: center center;
	background-repeat: no-repeat;
	background-size: cover;
	background-attachment: fixed;
}
body.contacts.dark { background-image: url('images/contacts-dark.jpg'); }

/* Optional radial vignette overlay for focus */
body::before {
	display:none; /* Disable global overlay to prevent any blending over header */
}
body.dark::before {
	display:none; /* Keep dark mode clean, no overlay blending */
}

@media (max-width: 700px) {
	.content-panel { padding:24px 24px; border-radius:18px; }
}

/* Animations */
@keyframes slideDown {
	0% { transform:translateY(-25px); opacity:0; }
	100% { transform:translateY(0); opacity:1; }
}
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }

@media (max-width: 900px) {
	.menu-toggle { display:block; }
	.header-inner { flex-wrap:nowrap; justify-content:space-between; gap:16px; padding:14px 22px; }
	.main-nav { position:absolute; top:70px; left:0; right:0; background:var(--header-bg); box-shadow:var(--shadow-md); padding:22px 30px; transform:translateY(-25px); opacity:0; pointer-events:none; border-bottom:4px solid var(--accent); }
	.main-nav.open { animation:slideDown .35s cubic-bezier(.33,.55,.28,.99) forwards; pointer-events:auto; }
	.nav-list { flex-direction:column; gap:14px; }
	.nav-list a { padding:8px 4px; font-size:16px; }
	.actions-group { margin-left:auto; }
}

@media (max-width: 600px) {
	.brand a { font-size:16px; }
	.menu-toggle { font-size:20px; padding:6px 12px; }
	.main-nav { top:56px; }
}

/* Reduce motion preference */
@media (prefers-reduced-motion: reduce) {
	.main-nav { transition:none; }
	.lang-switcher ul { transition:none; }
}