:root {
  --color-primary: #e8598a;
  --color-primary-dark: #c73d6b;
  --color-secondary: #4a6fa5;
  --color-bg: #fdf6f8;
  --color-card: #ffffff;
  --color-text: #2b2b33;
  --color-muted: #6b6b76;
  --color-border: #ece1e5;
  --color-danger: #d64545;
  --color-success: #2f9e5c;
  --radius: 12px;
  --shadow: 0 2px 10px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }

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

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ---- Header ---- */
.site-header {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 14px 16px;
  gap: 10px;
}
.logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
  text-decoration: none;
}
.site-header nav {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}
.site-header nav a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.95rem;
}
.site-header nav a.btn-nav {
  background: var(--color-primary);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
}

main.container {
  padding-top: 24px;
  padding-bottom: 48px;
  min-height: 70vh;
}

/* ---- Hero / Landing ---- */
.hero {
  text-align: center;
  padding: 32px 8px 16px;
}
.hero h1 { font-size: 1.8rem; margin-bottom: 12px; }
.hero p { color: var(--color-muted); max-width: 560px; margin: 0 auto 20px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.feature-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.feature-card h2 { font-size: 1.05rem; margin: 0 0 8px; }
.feature-card p { color: var(--color-muted); margin: 0; font-size: 0.92rem; }

/* ---- Auth ---- */
.auth-card {
  max-width: 400px;
  margin: 20px auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.auth-card h1 { font-size: 1.4rem; margin-top: 0; }
.auth-switch { text-align: center; margin-top: 16px; font-size: 0.92rem; }
.divider {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
  margin: 18px 0;
  position: relative;
}

/* ---- Forms ---- */
form label {
  display: block;
  margin: 12px 0 4px;
  font-size: 0.88rem;
  color: var(--color-muted);
}
input[type=text], input[type=email], input[type=password], input[type=date], input[type=file] {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 1rem;
  background: #fff;
}
input:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }

.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.inline-form input { flex: 1 1 160px; }
.inline-form button { flex: 0 0 auto; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  background: #eee;
  color: var(--color-text);
}
.btn-block { width: 100%; margin-top: 14px; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-secondary { background: #fff; color: var(--color-secondary); border-color: var(--color-secondary); }
.btn-google { background: #fff; border-color: var(--color-border); color: var(--color-text); }
.btn-danger { background: #fff; color: var(--color-danger); border-color: var(--color-danger); }
.btn-small { padding: 6px 10px; font-size: 0.85rem; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

/* ---- Cards ---- */
.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.card h2 { margin-top: 0; font-size: 1.1rem; }

.dashboard-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.sync-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---- Contact list ---- */
.contact-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 4px;
  border-bottom: 1px solid var(--color-border);
}
.contact-row:last-child { border-bottom: none; }
.contact-info { display: flex; flex-direction: column; }

.muted { color: var(--color-muted); font-size: 0.88rem; }

.alert {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-top: 10px;
}
.alert-error { background: #fdecec; color: var(--color-danger); }
.alert-success { background: #eaf7ee; color: var(--color-success); }

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 18px 0;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.8rem;
}

/* ---- Mobile ---- */
@media (max-width: 600px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .inline-form { flex-direction: column; align-items: stretch; }
  .inline-form button { width: 100%; }
  .dashboard-head { flex-direction: column; }
  .sync-actions { width: 100%; }
  .sync-actions .btn { flex: 1 1 auto; }
  .hero h1 { font-size: 1.5rem; }
}