:root {
  --bg: #f8fafc;
  --bg-alt: #f1f5f9;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #dc2626;
  --accent2: #b91c1c;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 6px 20px rgba(15, 23, 42, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, sans-serif;
}

/* ================= CONTAINER ================= */
.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

/* ================= NAVBAR ================= */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(6px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--accent);
  letter-spacing: 0.5px;
}

/* NAV */
.nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 6px;
  transition: 0.2s;
}

.nav a:hover {
  color: var(--accent);
  background: rgba(220, 38, 38, 0.08);
}

/* ================= HERO ================= */
.hero {
  padding: 60px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.4rem;
  margin-bottom: 10px;
}

.hero p {
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ================= CARDS ================= */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.card {
  background: var(--surface);
  padding: 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: 0.25s ease;
  border: 1px solid var(--border);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}

/* ================= BUTTON ================= */
.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.2s;
}

.btn:hover {
  background: var(--accent2);
}

/* ================= TABLE ================= */
.table-wrap {
  overflow-x: auto;
  margin-top: 20px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.data-table th,
.data-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 0.9rem;
}

.data-table th {
  background: var(--bg-alt);
  font-weight: 600;
}

.data-table tr:hover {
  background: #fef2f2;
}

/* ================= BADGES ================= */
.badge {
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-ok {
  background: #dcfce7;
  color: #166534;
}

.badge-no {
  background: #fee2e2;
  color: #991b1b;
}

/* ================= INPUT ================= */
input[type="text"],
select,
textarea {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 0.9rem;
  transition: 0.2s;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  outline: none;
}

/* ================= FOOTER ================= */
.site-footer {
  text-align: center;
  padding: 20px;
  background: #fff;
  margin-top: 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

/* ================= RESPONSIVE ================= */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    gap: 10px;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero h1 {
    font-size: 1.8rem;
  }
}