/* ============================================================
   OMA Member System — Admin CSS
   Brand palette:
     #080808  — near-black (header, primary buttons, text)
     #D4FF1E  — highlighter lime-gold (accent)
     Archivo font family
   Mobile-first.  Desktop styles in @media block at the bottom.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700&display=swap');

:root {
  --color-bg:           #ffffff;
  --color-surface:      #fafafa;
  --color-text:         #080808;
  --color-text-subtle:  #6b6b6b;
  --color-text-muted:   #999999;
  --color-border:       #e5e5e5;
  --color-border-dark:  #d4d4d4;
  --color-accent:       #D4FF1E;
  --color-accent-soft:  #f0ffb8;
  --color-dark:         #080808;
  --color-dark-2:       #1a1a1a;
  --color-error:        #c62828;
  --color-error-bg:     #fdecea;
  --color-success:      #2e7d32;
  --color-success-bg:   #e8f5e9;
  --color-warn:         #8a6c00;
  --color-warn-bg:      #fff8dc;
  --color-warn-border:  #d4a900;

  --radius:    8px;
  --radius-sm: 4px;
  --radius-lg: 12px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;

  --font: 'Archivo', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --header-h: 56px;
  --nav-w: 240px;
}

/* ============================================================
   Reset & base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}

body {
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: inherit; }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-surface);
  padding: 2px 5px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

/* ============================================================
   Brand accent (highlighter)
   ============================================================ */
.brand-accent {
  background: var(--color-accent);
  color: var(--color-dark);
  padding: 0 6px;
  border-radius: 3px;
}

/* ============================================================
   LOGIN / SETUP PAGE
   ============================================================ */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-dark);
  padding: var(--space-4);
  min-height: 100vh;
}

.login-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
  max-width: 380px;
  width: 100%;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.login-card h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: var(--space-1);
}

.login-card .subtle {
  color: var(--color-text-subtle);
  font-size: 14px;
  margin-bottom: var(--space-5);
}

/* ============================================================
   FORMS
   ============================================================ */
form label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-subtle);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

form input[type="text"],
form input[type="password"],
form input[type="email"],
form input[type="tel"],
form input[type="date"],
form input[type="number"],
form textarea,
form select {
  display: block;
  width: 100%;
  padding: 12px 14px;
  margin-top: var(--space-1);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 16px;
  color: var(--color-text);
  background: white;
  text-transform: none;
  letter-spacing: 0;
}

form input:focus,
form textarea:focus,
form select:focus {
  outline: none;
  border-color: var(--color-dark);
  box-shadow: 0 0 0 3px rgba(212, 255, 30, 0.4);
}

form input[disabled] {
  background: var(--color-surface);
  color: var(--color-text-subtle);
}

form textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.5;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary,
.btn-secondary,
.btn-danger {
  display: inline-block;
  padding: 14px 20px;
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  line-height: 1.2;
}

.btn-primary {
  background: var(--color-dark);
  color: white;
  width: 100%;
  margin-top: var(--space-2);
}
.btn-primary:hover { background: var(--color-dark-2); }
.btn-primary:active { background: #000; }

.btn-primary.as-link { width: 100%; box-sizing: border-box; }

.btn-secondary {
  background: white;
  color: var(--color-dark);
  border: 1px solid var(--color-border-dark);
}
.btn-secondary:hover { background: var(--color-surface); }

.btn-danger {
  background: var(--color-error);
  color: white;
}
.btn-danger:hover { background: #a31818; }

/* ============================================================
   FLASH MESSAGES
   ============================================================ */
.flash {
  padding: 12px 14px;
  border-radius: var(--radius);
  margin-bottom: var(--space-4);
  font-size: 14px;
  line-height: 1.5;
}
.flash-error {
  background: var(--color-error-bg);
  color: var(--color-error);
  border-left: 3px solid var(--color-error);
}
.flash-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border-left: 3px solid var(--color-success);
}
.flash strong { display: block; margin-bottom: 2px; }
.flash p { margin: 4px 0 0; font-size: 13px; }

/* ============================================================
   ADMIN SHELL
   ============================================================ */
.admin-body {
  background: var(--color-surface);
  padding-top: var(--header-h);
  min-height: 100vh;
}

.admin-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--color-dark);
  color: white;
  z-index: 100;
  display: flex;
  align-items: center;
}

.header-row {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 0 var(--space-4);
  gap: var(--space-3);
}

.menu-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 40px;
}
.menu-toggle span {
  display: block;
  height: 2px;
  width: 22px;
  background: white;
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}
body.nav-open .menu-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
body.nav-open .menu-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .menu-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
  flex: 1;
  color: white;
  text-decoration: none;
}

.user-chip {
  font-size: 13px;
  padding: 6px 12px;
  background: rgba(255,255,255,0.1);
  border-radius: 16px;
  color: white;
}

/* ============================================================
   NAV — Mobile (slide-in)
   ============================================================ */
.admin-nav {
  position: fixed;
  top: var(--header-h);
  left: -280px;
  bottom: 0;
  width: 280px;
  background: white;
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  transition: left 0.25s ease;
  z-index: 50;
}
body.nav-open .admin-nav { left: 0; }

.admin-nav ul { list-style: none; padding: var(--space-3) 0; }

.admin-nav li.nav-section {
  padding: var(--space-4) var(--space-4) var(--space-1);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-text-muted);
}

.admin-nav a {
  display: block;
  padding: 14px var(--space-4);
  text-decoration: none;
  color: var(--color-text);
  font-size: 15px;
  font-weight: 500;
  border-left: 3px solid transparent;
}
.admin-nav a:hover { background: var(--color-surface); }
.admin-nav a.active {
  background: var(--color-surface);
  border-left-color: var(--color-accent);
  font-weight: 600;
}
.admin-nav a.logout {
  color: var(--color-error);
  margin-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

/* Nav backdrop on mobile when nav open */
.nav-backdrop {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
  z-index: 40;
}
body.nav-open .nav-backdrop {
  opacity: 1;
  visibility: visible;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.admin-main {
  padding: var(--space-4);
  max-width: 100%;
}

/* ============================================================
   CARDS, HEADINGS, TYPOGRAPHY
   ============================================================ */
.card {
  background: white;
  border-radius: var(--radius);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
  border: 1px solid var(--color-border);
}

h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: var(--space-4);
  letter-spacing: -0.3px;
}
h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-3);
}
h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: var(--space-2);
}
p { margin-bottom: var(--space-3); }

.placeholder {
  background: var(--color-warn-bg);
  border: 1px dashed var(--color-warn-border);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-4);
  color: var(--color-warn);
  font-size: 14px;
  margin-bottom: var(--space-4);
}
.placeholder p { margin-bottom: 0; }

/* ============================================================
   STAT GRID (dashboard)
   ============================================================ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.stat-card {
  background: white;
  border-radius: var(--radius);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
}
.stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-text-subtle);
  margin-bottom: 4px;
}
.stat-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

/* ============================================================
   TABLES
   ============================================================ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.data-table th,
.data-table td {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}
.data-table th {
  background: var(--color-surface);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-subtle);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--color-surface); }

/* ============================================================
   DESKTOP (>=900px)
   ============================================================ */
@media (min-width: 900px) {
  .menu-toggle { display: none; }
  .nav-backdrop { display: none; }

  .admin-nav {
    left: 0;
    width: var(--nav-w);
  }
  .admin-main {
    margin-left: var(--nav-w);
    padding: var(--space-5);
    max-width: 1100px;
  }
  .stat-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}