/* ANNET Digital Network — design system
   Institutional, calm, professional. White surfaces, restrained colour,
   generous spacing. See MASTER_BUILD_SPEC.md section 5 / 9. */

:root {
  --color-primary: #1b4332;
  --color-primary-dark: #12301f;
  --color-primary-light: #e8f0ea;
  --color-accent: #2d6a4f;
  --color-text: #1a1d1a;
  --color-text-muted: #5b615c;
  --color-border: #e3e6e3;
  --color-surface: #ffffff;
  --color-surface-muted: #f7f8f7;
  --color-danger: #b3261e;
  --color-danger-light: #fbeceb;
  --color-warning: #8a5a00;
  --color-warning-light: #fdf2e0;
  --color-success: #1b4332;
  --color-success-light: #e8f0ea;
  --radius-sm: 6px;
  --radius-md: 10px;
  --shadow-sm: 0 1px 2px rgba(20, 24, 20, 0.06);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.55;
  font-size: 15px;
}

h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; margin: 0 0 .5em; }
h1 { font-size: 2.1rem; }
h2 { font-size: 1.55rem; }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; color: var(--color-text); }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section { padding: 56px 0; }
.section-muted { background: var(--color-surface-muted); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .92rem; border: 1px solid transparent;
  cursor: pointer; text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-outline { background: #fff; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary-light); }
.btn-ghost { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn-ghost:hover { background: var(--color-surface-muted); }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: .82rem; }
.btn-block { width: 100%; justify-content: center; }

/* Cards */
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 20px; box-shadow: var(--shadow-sm);
}
.card-flat { border-radius: var(--radius-md); border: 1px solid var(--color-border); padding: 20px; }

/* Grid helpers */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* Forms */
label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: 6px; }
.field-hint { color: var(--color-text-muted); font-size: .8rem; margin-top: 4px; }
.field-error { color: var(--color-danger); font-size: .8rem; margin-top: 4px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=url], input[type=tel], input[type=search],
select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); font-size: .92rem; font-family: var(--font-sans);
  background: #fff; color: var(--color-text);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--color-primary); outline-offset: 1px; border-color: var(--color-primary);
}
.form-group { margin-bottom: 18px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: auto; }
fieldset { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 18px; margin-bottom: 20px; }
legend { font-weight: 700; padding: 0 8px; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); font-size: .88rem; }
th { color: var(--color-text-muted); font-weight: 600; text-transform: uppercase; font-size: .72rem; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }

/* Badges / status */
.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px;
  border-radius: 999px; font-size: .74rem; font-weight: 600; border: 1px solid transparent;
}
.badge-neutral { background: var(--color-surface-muted); color: var(--color-text-muted); border-color: var(--color-border); }
.badge-success { background: var(--color-success-light); color: var(--color-success); }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-light); color: var(--color-danger); }
.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }

/* Alerts */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); border: 1px solid; margin-bottom: 16px; font-size: .9rem; }
.alert-success { background: var(--color-success-light); border-color: var(--color-success); color: var(--color-success); }
.alert-error { background: var(--color-danger-light); border-color: var(--color-danger); color: var(--color-danger); }
.alert-info { background: var(--color-primary-light); border-color: var(--color-primary); color: var(--color-primary-dark); }
.alert-warning { background: var(--color-warning-light); border-color: var(--color-warning); color: var(--color-warning); }

/* Public header */
.site-header { border-bottom: 1px solid var(--color-border); background: #fff; position: sticky; top: 0; z-index: 20; }
.site-header .inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; max-width: 1180px; margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--color-text); }
.brand-mark { width: 38px; height: 38px; border-radius: 50%; background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: .8rem; font-weight: 800; }
.brand-tagline { font-size: .68rem; color: var(--color-text-muted); font-weight: 500; display: block; }
.main-nav { display: flex; align-items: center; gap: 24px; }
.main-nav a { color: var(--color-text); font-weight: 500; font-size: .9rem; }
.header-actions { display: flex; align-items: center; gap: 12px; }

/* Hero */
.hero { background: var(--color-surface-muted); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; padding: 56px 0; }
.hero-image { border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 4/3; background: var(--color-primary-light); }
.hero-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

.stat { text-align: left; }
.stat-value { font-size: 1.7rem; font-weight: 800; color: var(--color-text); }
.stat-label { color: var(--color-text-muted); font-size: .85rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--color-border); background: var(--color-surface-muted); padding: 40px 0 24px; margin-top: 40px; }
.site-footer a { color: var(--color-text-muted); }
.footer-cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.footer-bottom { border-top: 1px solid var(--color-border); padding-top: 16px; color: var(--color-text-muted); font-size: .82rem; }
@media (max-width: 900px) { .footer-cols { grid-template-columns: 1fr 1fr; } }

/* --- Authenticated workspace shell --- */
.app-shell { display: flex; min-height: 100vh; }
.app-sidebar {
  width: 240px; flex-shrink: 0; background: var(--color-surface);
  border-right: 1px solid var(--color-border); padding: 18px 12px;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.app-sidebar .brand { padding: 0 8px 18px; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px;
  border-radius: var(--radius-sm); color: var(--color-text); font-size: .88rem; font-weight: 500;
  border-left: 3px solid transparent;
}
.sidebar-nav a:hover { background: var(--color-surface-muted); text-decoration: none; }
.sidebar-nav a.active { background: var(--color-surface-muted); border-left-color: var(--color-primary); font-weight: 700; }
.sidebar-section-label { font-size: .68rem; text-transform: uppercase; letter-spacing: .04em; color: var(--color-text-muted); padding: 16px 10px 6px; font-weight: 700; }

.app-main { flex: 1; min-width: 0; }
.app-topbar { display: flex; align-items: center; justify-content: space-between; padding: 14px 28px; border-bottom: 1px solid var(--color-border); background: #fff; position: sticky; top: 0; z-index: 10; }
.app-content { padding: 28px; max-width: 1180px; }
.breadcrumbs { font-size: .82rem; color: var(--color-text-muted); margin-bottom: 10px; }
.breadcrumbs a { color: var(--color-text-muted); }
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.page-header p { color: var(--color-text-muted); margin: 4px 0 0; }

.empty-state { text-align: center; padding: 48px 24px; border: 1px dashed var(--color-border); border-radius: var(--radius-md); color: var(--color-text-muted); }
.empty-state h3 { color: var(--color-text); }

.metric-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 28px; }
.metric-card { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 16px; }
.metric-card .stat-value { font-size: 1.6rem; }

.tabs { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 1px solid var(--color-border); margin-bottom: 20px; }
.tabs a { padding: 9px 14px; font-size: .88rem; font-weight: 600; color: var(--color-text-muted); border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs a.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

.pagination { display: flex; gap: 6px; margin-top: 20px; }
.pagination a, .pagination span { padding: 6px 11px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: .82rem; }
.pagination .current { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.text-muted { color: var(--color-text-muted); }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.flex { display: flex; } .items-center { align-items: center; } .gap-8 { gap: 8px; } .gap-16 { gap: 16px; }
.justify-between { justify-content: space-between; }