/* Light theme (default) */
:root{
  --bg:#ffffff;
  --brand:#0077cc;
  --brand-dark:#005fa3;
  --text:#111111;
  --text-light:#444444;
  --surface:#fff;
  --muted:#e6f2fa;
}

/* Dark theme */
:root.dark {
  --bg:#111111;
  --brand:#3399ff;
  --brand-dark:#1a75d1;
  --text:#f5f5f5;
  --text-light:#cccccc;
  --surface:#1a1a1a;
  --muted:#003366;
}

/* Reset */
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  transition: background 0.3s ease, color 0.3s ease;
}

.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{
  background:#000;
  color:var(--brand);
  border-bottom:4px solid var(--brand);
}
.header-grid{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.logo{font-weight:800;font-size:1.6rem;color:var(--brand)}
.tagline{color:#fff;font-size:.95rem}
.lang-switch .lang-btn{
  background:transparent;border:none;color:#fff;font-weight:700;cursor:pointer;padding:6px 8px;border-radius:8px
}
.lang-switch .lang-btn.active{background:var(--brand);color:#fff}
.lang-switch .divider{color:#666}

/* Hero with background image */
.hero {
  background: url("https://scontent-bru2-1.xx.fbcdn.net/v/t39.30808-6/326556160_1209362659997600_4280237704317778661_n.jpg?_nc_cat=110&ccb=1-7&_nc_sid=6ee11a&_nc_ohc=tqTMzIsGmXoQ7kNvwFniXsw&_nc_oc=AdkqVZm5LF8r0hMB5aierI5K7hx11_fEEO4SMIAVYvscfTmtSsH2iwEA2Chkxn-kPas&_nc_zt=23&_nc_ht=scontent-bru2-1.xx&_nc_gid=B3g2PvvwEhzUX4BpPakgbQ&oh=00_AfZGjk-MQBRd6TVpzoI_oFZf5nXO7M0uNF5wSQwqJBRb3w&oe=68DCC18A") 
              no-repeat center center/cover;
  color:#fff;
  padding:100px 0 80px;
  text-align:left;
  border-bottom:4px solid var(--brand);
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  top:0;left:0;right:0;bottom:0;
  background: rgba(0,0,0,0.55);
}
.hero .container {
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size:2.4rem;
  margin:0 0 12px;
  color:#fff;
}
.hero .lead {
  color:#f0f0f0;
  max-width:750px;
  margin:0 0 24px;
}

/* Buttons */
.btn {
  display:inline-block;
  background:var(--brand);
  color:#fff;
  padding:12px 20px;
  border-radius:12px;
  font-weight:800;
  text-decoration:none;
  border:none;
  cursor:pointer;
  transition: background 0.3s ease;
}
.btn:hover {
  background:var(--brand-dark);
}

/* Sections */
section{padding:48px 0}
.about p{max-width:900px}

/* Services */
.services .service-list{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
  gap:14px;
  list-style:none;
  padding:0;
  margin:18px 0 0;
}
.services .service-list li{
  background:var(--muted);
  border:2px solid var(--brand);
  padding:14px;
  border-radius:10px;
  font-weight:600;
  transition: background 0.3s ease, border 0.3s ease;
}

/* Contact */
.contact .contact-intro{color:var(--text-light)}
.contact-form{
  background:var(--surface);
  border:1px solid #ddd;
  padding:20px;
  border-radius:12px;
  margin-top:14px;
  transition: background 0.3s ease, border 0.3s ease;
}
.contact-form .grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
@media (max-width:700px){
  .contact-form .grid{grid-template-columns:1fr}
}
label{display:flex;flex-direction:column;gap:8px;font-weight:600}
input, textarea{
  padding:12px;
  border-radius:8px;
  border:1px solid #ccc;
  font:inherit;
  background: var(--surface);
  color: var(--text);
  transition: background 0.3s ease, color 0.3s ease, border 0.3s ease;
}
textarea{resize:vertical;min-height:140px}

/* Footer */
.site-footer{
  background:#000;
  color:var(--brand);
  padding:18px 0;
  text-align:center;
  border-top:4px solid var(--brand);
}
.site-footer p{margin:0}
.site-footer a {
  color: var(--brand);
  font-weight: 700;
  text-decoration: none;
  margin: 0 4px;
}
.site-footer a:hover {
  text-decoration: underline;
}

/* Floating theme toggle button */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  transition: background 0.3s ease;
  z-index: 1000;
}
.theme-toggle:hover {
  background: var(--brand-dark);
}