:root {
  --black: #191919;
  --white: #ffffff;
  --gray-50: #f5f5f7;
  --gray-100: #e8e8ea;
  --gray-200: #d1d1d6;
  --gray-400: #9f9f9f;
  --gray-600: #6e6e73;
  --green: #1a7a3a;
  --green-bg: #e8f5e9;
  --red: #b71c1c;
  --red-bg: #fce4e4;
  --gold: #c9a84c;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Open Sans', sans-serif; color: var(--black); background: var(--white); -webkit-font-smoothing: antialiased; }

/* Nav */
.n4-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-100);
  padding: 16px 48px; display: flex; align-items: center; justify-content: space-between;
}
.n4-nav-logo { font-family: 'Cinzel', serif; font-size: 24px; font-weight: 700; color: var(--black); text-decoration: none; }
.n4-nav-right { display: flex; align-items: center; gap: 20px; }
.n4-nav-user { font-size: 14px; color: var(--gray-600); }
.n4-nav-link { font-size: 14px; color: var(--gray-600); text-decoration: none; transition: color 0.2s; }
.n4-nav-link:hover { color: var(--black); }

/* Page */
.n4-page { max-width: 960px; margin: 0 auto; padding: 120px 32px 80px; }
.n4-page-narrow { max-width: 480px; }

/* Typography */
.n4-h1 { font-family: 'Cinzel', serif; font-size: 36px; font-weight: 600; margin-bottom: 12px; line-height: 1.2; }
.n4-h2 { font-family: 'Cinzel', serif; font-size: 28px; font-weight: 600; margin-bottom: 12px; line-height: 1.2; }
.n4-subtitle { font-size: 16px; color: var(--gray-600); margin-bottom: 48px; line-height: 1.6; }

/* Cards */
.n4-card {
  background: var(--gray-50); border-radius: 12px; padding: 24px;
  transition: transform 0.2s ease;
}
.n4-card:hover { transform: translateY(-2px); }
.n4-card-dark {
  background: var(--black); color: var(--white); border-radius: 12px; padding: 32px;
}

/* Form */
.n4-form-group { margin-bottom: 24px; }
.n4-label {
  display: block; font-size: 13px; text-transform: uppercase;
  letter-spacing: 1.5px; color: var(--gray-600); margin-bottom: 8px;
}
.n4-input {
  width: 100%; padding: 14px 16px; border: 1px solid var(--gray-200); border-radius: 8px;
  font-family: 'Open Sans', sans-serif; font-size: 16px; outline: none;
  transition: border-color 0.2s;
}
.n4-input:focus { border-color: var(--black); }

/* Buttons */
.n4-btn {
  display: inline-block; padding: 14px 28px; background: var(--black); color: var(--white);
  font-family: 'Cinzel', serif; font-size: 15px; font-weight: 600; letter-spacing: 0.5px;
  border: none; border-radius: 8px; cursor: pointer; transition: opacity 0.2s;
  text-decoration: none; text-align: center;
}
.n4-btn:hover { opacity: 0.85; }
.n4-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.n4-btn-full { width: 100%; }
.n4-btn-outline {
  background: transparent; color: var(--black);
  border: 1px solid var(--gray-200);
}
.n4-btn-outline:hover { border-color: var(--black); opacity: 1; }
.n4-btn-sm { padding: 8px 16px; font-size: 13px; }
.n4-btn-danger { background: var(--red); }

/* Grid */
.n4-grid { display: grid; gap: 16px; }
.n4-grid-2 { grid-template-columns: repeat(auto-fill, minmax(400px, 1fr)); }
.n4-grid-3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

/* Status */
.n4-status { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-top: 16px; display: none; }
.n4-status.error { display: block; background: var(--red-bg); color: var(--red); }
.n4-status.success { display: block; background: var(--green-bg); color: var(--green); }

/* Empty state */
.n4-empty { text-align: center; padding: 80px 32px; }
.n4-empty-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.3; }
.n4-empty p { color: var(--gray-400); font-size: 16px; }

/* Tag */
.n4-tag {
  display: inline-block; font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 1px;
  padding: 4px 10px; border-radius: 4px;
  background: var(--gray-100); color: var(--gray-600);
}
.n4-tag-gold { background: rgba(201,168,76,0.15); color: #8a7030; }

/* Table */
.n4-table { width: 100%; border-collapse: collapse; }
.n4-table th {
  text-align: left; font-size: 12px; text-transform: uppercase;
  letter-spacing: 1.5px; color: var(--gray-400); padding: 12px 16px;
  border-bottom: 1px solid var(--gray-100);
}
.n4-table td { padding: 16px; border-bottom: 1px solid var(--gray-50); font-size: 14px; }
.n4-table tr:hover td { background: var(--gray-50); }

/* Loading */
.n4-loading { text-align: center; padding: 48px; color: var(--gray-400); }

@media (max-width: 600px) {
  .n4-nav { padding: 14px 20px; }
  .n4-page { padding: 100px 20px 60px; }
  .n4-grid-2, .n4-grid-3 { grid-template-columns: 1fr; }
  .n4-h1 { font-size: 28px; }
}