:root {
  --primary: #d97706; /* Roof/Amber Accent */
  --primary-hover: #b45309;
  --bg: #0f172a;      /* Dark Modern Slate */
  --card-bg: #1e293b;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --border: #334155;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container { max-width: 1000px; margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.header { border-bottom: 1px solid var(--border); padding: 1rem 0; }
.nav-content { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.25rem; letter-spacing: -0.5px; }
.logo strong { color: var(--primary); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  border: none;
}
.btn-phone { background-color: var(--border); color: #fff; }
.btn-primary {
  width: 100%;
  background-color: var(--primary);
  color: #fff;
  font-size: 1rem;
  margin-top: 0.5rem;
  transition: background 0.2s;
}
.btn-primary:hover { background-color: var(--primary-hover); }

/* Hero */
.hero { padding: 3.5rem 0 2rem; text-align: center; }
.hero h1 { font-size: 2.2rem; font-weight: 800; line-height: 1.2; margin-bottom: 1rem; }
.hero p { color: var(--text-muted); font-size: 1.15rem; }

/* Layout Grid */
.main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 4rem;
}
@media (min-width: 768px) {
  .main-grid { grid-template-columns: 1.1fr 1fr; align-items: start; }
}

.benefits { list-style: none; margin-top: 1.5rem; }
.benefits li { padding: 0.5rem 0; color: var(--text-muted); font-size: 1.05rem; }

/* Card & Form */
.form-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}
.form-card h3 { font-size: 1.35rem; }
.subtitle { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; }

.form-group { margin-bottom: 1rem; }
label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.35rem; }
input, select, textarea {
  width: 100%;
  padding: 0.65rem;
  background: #0b1120;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: #fff;
  font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); }

.status-msg { margin-top: 1rem; text-align: center; font-weight: 600; font-size: 0.9rem; }
.status-msg.success { color: #4ade80; }
.status-msg.error { color: #f87171; }

.footer { border-top: 1px solid var(--border); padding: 2rem 0; text-align: center; font-size: 0.85rem; color: var(--text-muted); }