/*
 * Morris design tokens and shell layout.
 *
 * Phase 2a establishes the visual foundation: topbar + three-column
 * layout (sidebar / main / rightpanel) so 2c can populate the rails
 * without rewriting the shell. Colors, spacing, and typography live
 * in CSS custom properties so later phases can theme without
 * touching component CSS.
 */

:root {
  /* Palette (rmslms-inspired navy/gold). */
  --navy:        #1A2B4A;
  --navy-2:      #243961;
  --gold:        #D4AF70;
  --bg:          #F7F6F3;
  --surface:     #FFFFFF;
  --border:      rgba(0, 0, 0, 0.09);
  --border-md:   rgba(0, 0, 0, 0.15);
  --text:        #1A2B4A;
  --text-2:      #5A6478;
  --text-3:      #8A96A8;
  --danger:      #C0392B;

  /* Geometry. */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;

  /* Spacing scale. */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;

  /* Layout sizes. */
  --topbar-height:    56px;
  --sidebar-width:    240px;
  --rightpanel-width: 320px;
  --content-max:      960px;

  /* Typography. */
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
}

a { color: var(--navy-2); }

code {
  background: rgba(0, 0, 0, 0.05);
  padding: 1px 6px;
  border-radius: var(--r-sm);
  font-size: 0.9em;
}

/* ------------------------------------------------------------------ */
/* Topbar                                                              */
/* ------------------------------------------------------------------ */

.topbar {
  height: var(--topbar-height);
  background: var(--navy);
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-3);
}

.topbar-brand {
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar-user {
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
}

.topbar-link {
  color: white;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 6px 12px;
  border-radius: var(--r-md);
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
}
.topbar-link:hover { background: rgba(255, 255, 255, 0.08); }

.topbar-logout {
  display: inline;
  margin: 0;
  padding: 0;
}

/* ------------------------------------------------------------------ */
/* Layout                                                              */
/* ------------------------------------------------------------------ */

.layout {
  display: flex;
  min-height: calc(100vh - var(--topbar-height));
}

.sidebar {
  flex: 0 0 var(--sidebar-width);
  background: var(--surface);
  border-right: 1px solid var(--border);
}
.sidebar:empty { flex: 0; border-right: none; }

.main {
  flex: 1 1 auto;
  padding: var(--space-3);
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
}

.rightpanel {
  flex: 0 0 var(--rightpanel-width);
  background: var(--surface);
  border-left: 1px solid var(--border);
}
.rightpanel:empty { flex: 0; border-left: none; }

/* ------------------------------------------------------------------ */
/* Sign-in card (login page)                                           */
/* ------------------------------------------------------------------ */

.signin-card {
  max-width: 420px;
  margin: var(--space-5) auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--space-4);
}

.signin-card h1 {
  margin: 0 0 var(--space-3) 0;
  font-size: 24px;
}

.signin-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.signin-form label {
  font-size: 14px;
  color: var(--text-2);
}

.signin-form input[type="text"],
.signin-form input[type="email"] {
  padding: 10px 12px;
  border: 1px solid var(--border-md);
  border-radius: var(--r-md);
  font-size: 16px;
  font-family: inherit;
}

.signin-form button {
  padding: 10px;
  background: var(--navy);
  color: white;
  border: none;
  border-radius: var(--r-md);
  font-size: 16px;
  cursor: pointer;
  font-family: inherit;
}
.signin-form button:hover { background: var(--navy-2); }

.signin-help {
  font-size: 14px;
  color: var(--text-2);
  margin-top: var(--space-3);
}

.signin-error {
  background: rgba(192, 57, 43, 0.1);
  color: var(--danger);
  border: 1px solid rgba(192, 57, 43, 0.3);
  border-radius: var(--r-md);
  padding: var(--space-2);
  margin: 0 0 var(--space-3) 0;
  font-size: 14px;
}

/* ------------------------------------------------------------------ */
/* Landing page                                                        */
/* ------------------------------------------------------------------ */

.landing h1 {
  margin: 0 0 var(--space-2) 0;
  font-size: 28px;
}

.landing-admin-badge {
  display: inline-block;
  background: var(--gold);
  color: var(--navy);
  padding: 2px 8px;
  border-radius: var(--r-sm);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.landing-groups { color: var(--text-2); }
.landing-groups-empty { color: var(--text-3); font-style: italic; }

/* ------------------------------------------------------------------ */
/* Admin pages                                                         */
/* ------------------------------------------------------------------ */

.admin-card {
  max-width: 520px;
  margin: var(--space-4) auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--space-4);
}

.admin-card h1 {
  margin: 0 0 var(--space-2) 0;
  font-size: 24px;
}

.admin-help {
  font-size: 14px;
  color: var(--text-2);
  margin: 0 0 var(--space-3) 0;
}

.admin-success {
  background: rgba(15, 110, 86, 0.1);
  color: #0F6E56;
  border: 1px solid rgba(15, 110, 86, 0.3);
  border-radius: var(--r-md);
  padding: var(--space-2);
  margin: 0 0 var(--space-3) 0;
  font-size: 14px;
}

.admin-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 14px;
  color: var(--text-2);
}

.admin-optional {
  color: var(--text-3);
  font-weight: normal;
  font-size: 0.9em;
}