*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #FFFFFF;
  --surface: #F8FAFC;
  --border: rgba(15,23,42,0.08);
  --green: #16A34A;
  --green-dim: rgba(22,163,74,0.07);
  --green-glow: rgba(22,163,74,0.18);
  --text: #0F172A;
  --text-muted: #94A3B8;
  --text-secondary: #475569;
  --radius-full: 9999px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(15,23,42,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,0.035) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(255,255,255,0.88);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  letter-spacing: -0.4px;
  text-decoration: none;
  color: var(--text);
}
.logo-name  { font-weight: 400; }
.logo-name b { font-weight: 800; }
.logo-img   { height: 56px; width: auto; display: block; flex-shrink: 0; }

.nav-right { display: flex; align-items: center; gap: 18px; }

.nav-back {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}
.nav-back:hover { color: var(--text); }

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 3px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 5px 12px;
}
.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 2px 4px;
  letter-spacing: 0.6px;
  transition: color 0.15s;
}
.lang-btn.active { color: var(--text); }
.lang-btn:hover  { color: var(--text); }
.lang-sep { font-size: 11px; color: var(--border); user-select: none; }

/* ── MAIN ── */
main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 108px 24px 72px;
  position: relative;
  z-index: 1;
}

.glow {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 420px;
  background: radial-gradient(ellipse, var(--green-dim) 0%, transparent 68%);
  pointer-events: none;
}

/* ── CONTENT ── */
.contact-inner {
  text-align: center;
  max-width: 560px;
  width: 100%;
}

.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 22px;
}

h1 {
  font-size: clamp(40px, 5.5vw, 62px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--text);
  margin-bottom: 18px;
}

.sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.72;
  margin-bottom: 44px;
  max-width: 460px;
  margin-left: auto;
  margin-right: auto;
}

/* ── CONTACT METHOD ── */
.contact-methods { display: flex; flex-direction: column; gap: 12px; margin-bottom: 44px; }

.contact-method {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  text-decoration: none;
  color: var(--text);
  text-align: left;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.contact-method:hover {
  border-color: rgba(22,163,74,0.4);
  box-shadow: 0 4px 20px var(--green-glow);
}

.method-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--green-dim);
  border: 1px solid rgba(22,163,74,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.method-icon svg { width: 20px; height: 20px; }
.method-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.method-value { font-size: 15px; font-weight: 600; }

/* ── FORM ── */
.contact-form { display: flex; flex-direction: column; gap: 14px; text-align: left; }
.form-row { display: flex; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 7px; flex: 1; }

label {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.2px;
}

input, textarea {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 13px 18px;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  resize: none;
  width: 100%;
}
input::placeholder, textarea::placeholder { color: var(--text-muted); }
input:focus, textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}
textarea { min-height: 130px; }

.submit-btn {
  background: var(--green);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  padding: 15px 32px;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
  align-self: flex-start;
  margin-top: 4px;
}
.submit-btn:hover {
  background: #15803D;
  box-shadow: 0 6px 24px var(--green-glow);
  transform: translateY(-1px);
}

/* ── FOOTER ── */
footer {
  padding: 28px 48px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  position: relative;
  z-index: 1;
}
.footer-logo { display: flex; align-items: center; gap: 9px; font-size: 18px; color: var(--text); text-decoration: none; }
.footer-note { font-size: 13px; color: var(--text-muted); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 13px; color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }

/* ── RESPONSIVE ── */
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; color: var(--text); padding: 8px; margin: -8px -8px -8px 0; line-height: 0; -webkit-tap-highlight-color: transparent; }
.nav-toggle .ico-x { display: none; }
.nav-toggle[aria-expanded="true"] .ico-bars { display: none; }
.nav-toggle[aria-expanded="true"] .ico-x { display: block; }
@media (max-width: 640px) {
  nav { padding: 16px 20px; }
  main { padding: 96px 20px 60px; }
  .form-row { flex-direction: column; }
  footer { flex-direction: column; gap: 18px; text-align: center; padding: 24px 20px; }
  .nav-toggle { display: inline-flex; align-items: center; }
  nav .nav-right {
    display: flex; flex-direction: column; align-items: stretch; gap: 6px;
    position: absolute; left: 20px; right: 20px; top: 100%;
    background: #fff; border: 1px solid var(--border); border-radius: 0 0 18px 18px;
    padding: 12px; box-shadow: 0 18px 40px rgba(15,23,42,0.10);
    opacity: 0; visibility: hidden; transform: translateY(-10px);
    transition: opacity .2s ease, transform .2s ease, visibility 0s linear .2s;
    pointer-events: none;
  }
  nav .nav-right.open { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; transition: opacity .2s ease, transform .2s ease, visibility 0s; }
  .nav-right .lang-switcher { justify-content: center; align-self: center; }
  .nav-right .nav-back { justify-content: center; padding: 12px; border-radius: 12px; }
  .nav-right .nav-back:hover { background: var(--surface); }
}