/* NL PRODUCTION — minimal dark theme with yellow brand accent */

:root {
  --nl-black: #000000;
  --nl-yellow: #ffcf00;
  --text-light: #f5f5f5;
  --text-dim: #bbbbbb;
  --field-bg: #111111;
  --field-border: #333333;
  --focus: #ffcf00;
  --bar-h: 56px;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Inter, Arial, sans-serif;
  background: var(--nl-black);
  color: var(--text-light);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.page-wrapper { min-height: 100vh; background: var(--nl-black); }

a { color: var(--text-light); text-decoration: none; }
a:hover { opacity: 0.9; }

/* Header */
.top-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--bar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(10px);
  z-index: 20;
}

.logo-text {
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--nl-yellow);
  font-size: 0.85rem;
}

.lang-switcher { display: flex; gap: 0.5rem; align-items: center; }

.lang-link {
  font-size: 0.8rem;
  text-decoration: none;
  color: #aaa;
  text-transform: uppercase;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: .2s ease;
}
.lang-link:hover { color: #e6e6e6; border-color: rgba(255,255,255,0.18); }
.lang-link.active-lang, .active-lang {
  color: #000;
  background: var(--nl-yellow);
  border-color: var(--nl-yellow);
}

/* HERO */
.hero {
  position: relative;
  height: 100vh;
  min-height: 520px;
  background-image:
    linear-gradient(to bottom, rgba(0, 0, 0, 0.35), rgba(0,0,0,0.8), #000),
    url('../images/hero.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 1.5rem;
}

.hero-overlay { position: absolute; inset: 0; }

.hero-content { position: relative; z-index: 1; margin-top: 40px; }

.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  font-weight: 900;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--nl-yellow);
  margin: 0 0 0.5rem;
  text-shadow: 0 6px 24px rgba(0,0,0,0.6);
}

.hero-subtitle {
  margin: 0;
  font-size: clamp(0.9rem, 1.8vw, 1.1rem);
  letter-spacing: 0.2em;
  text-transform: lowercase;
  color: var(--nl-yellow);
  opacity: 0.9;
}

/* Contact section */
.contact-section {
  background: var(--nl-black);
  padding: 3rem 1.5rem 4rem;
  display: flex;
  justify-content: center;
}

.contact-container { width: 100%; max-width: 1000px; }

.contact-container h2 {
  color: var(--nl-yellow);
  margin: 0 0 0.5rem 0;
  font-size: clamp(1.4rem, 3.5vw, 2.2rem);
}

.contact-text { margin: 0 0 1.5rem 0; color: var(--text-dim); max-width: 860px; }

.alert-success {
  margin-bottom: 1rem;
  padding: 0.8rem 1rem;
  border-radius: 6px;
  background: #12361b;
  color: #9af58f;
  border: 1px solid #1f7a35;
}

.contact-form { display: flex; flex-direction: column; gap: 1rem; }

.form-row { display: flex; gap: 1rem; flex-wrap: wrap; }

.form-group { flex: 1; min-width: 220px; display: flex; flex-direction: column; }

label { font-size: 0.9rem; margin-bottom: 0.25rem; color: #e0e0e0; }

input, textarea {
  border: 1px solid var(--field-border);
  background: var(--field-bg);
  color: var(--text-light);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  font-size: 0.95rem;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

input::placeholder, textarea::placeholder { color: #9e9e9e; }

input:focus, textarea:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 3px rgba(255, 207, 0, 0.18);
  background: #161616;
}

textarea { resize: vertical; }

.btn-submit {
  align-self: flex-start;
  margin-top: 0.5rem;
  padding: 0.7rem 1.8rem;
  border-radius: 999px;
  border: none;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  background: var(--nl-yellow);
  color: #000;
  cursor: pointer;
  transition: transform .05s ease, filter .15s ease, box-shadow .2s ease;
  box-shadow: 0 10px 28px rgba(255,207,0,0.18);
}

.btn-submit:hover { filter: brightness(1.06); }
.btn-submit:active { transform: translateY(1px) scale(0.998); }

/* Responsive tweaks */
@media (max-width: 600px) {
  .hero-title { letter-spacing: 0.15em; }
  .lang-link { padding: 0.3rem 0.5rem; }
}