/* ═══════════════════════════════════════════════════════
   LAYOUT & PAGES — app shell, sidebar, page containers
   ═══════════════════════════════════════════════════════ */

/* ─── LOGIN SCREEN ─── */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background: radial-gradient(ellipse at center, rgba(201, 168, 76, 0.04) 0%, var(--black) 70%);
}

.login-card {
  background: var(--gray);
  border: 1px solid var(--gray3);
  padding: var(--space-xl);
  max-width: 420px;
  width: 100%;
}

.login-logo {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.login-logo img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  margin-bottom: var(--space-sm);
}

.login-logo h1 {
  font-size: 28px;
  margin: 0;
}

.login-logo h1 em {
  color: var(--gold);
  font-style: italic;
}

.login-logo .tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: var(--space-xs);
}

/* ─── APP SHELL ─── */
.app-shell {
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
}

/* ─── SIDEBAR ─── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--gray2);
  border-right: 1px solid var(--gray3);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  min-height: 100vh;
  min-height: 100dvh;
}

.sidebar-hdr {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--gray3);
}

.sidebar-hdr h2 {
  font-size: 22px;
  margin: 0;
  line-height: 1.2;
}

.sidebar-hdr h2 em { color: var(--gold); }

.sidebar-sub {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 4px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-sm) 0;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px var(--space-lg);
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
  border-left: 3px solid transparent;
  user-select: none;
  text-decoration: none;
  background: none;
  border-top: none;
  border-right: none;
  border-bottom: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-sans);
}

.nav-link:hover {
  color: var(--white);
  background: var(--gray3);
}

.nav-link.active {
  color: var(--gold);
  background: var(--gold-bg);
  border-left-color: var(--gold);
}

.nav-link .nav-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-ftr {
  /* STICKY-FOOTER-FIX: keep logout visible regardless of nav height */
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--gray3);
  position: sticky;
  bottom: 0;
  background: var(--gray2);
  z-index: 5;
  flex-shrink: 0;
}

.sidebar-ftr .user-name {
  font-size: 13px;
  color: #f5f0e8;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  word-break: break-word;
}

.sidebar-ftr .logout {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--muted);
  cursor: pointer;
  background: none;
  border: 1px solid var(--gray3);
  padding: 8px 12px;
  width: 100%;
  transition: all var(--transition);
}

.sidebar-ftr .logout:hover {
  color: var(--red);
  border-color: var(--red);
}

/* ─── MAIN CONTENT AREA ─── */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* Topbar (mobile + desktop) */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: var(--gray);
  border-bottom: 1px solid var(--gray3);
  min-height: var(--topbar-height);
}

.topbar-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.1em;
}

/* Hamburger button (mobile only) */
.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
}

/* Content container */
.content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
}

.content-inner {
  max-width: var(--max-content-width);
  margin: 0 auto;
}

/* ─── PAGE SYSTEM (flat hierarchy!) ─── */
.page {
  display: none;
  animation: fadeIn 0.25s ease;
}

.page.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-hdr {
  margin-bottom: var(--space-lg);
}

.page-hdr h1 {
  font-size: 32px;
  font-weight: 300;
  margin-bottom: 4px;
}

.page-hdr h1 em { color: var(--gold); }

.page-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ─── GRIDS ─── */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.grid-auto {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ─── SIDEBAR OVERLAY (mobile) ─── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 199;
}

.sidebar-overlay.open { display: block; }

/* ─── LOADING STATE ─── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
}

.loading::before {
  content: '⟳';
  display: inline-block;
  margin-right: var(--space-sm);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}