/* ═══════════════════════════════════════════════════════
   layout.css — Sidebar, Header, Main Content, Mobile
   TallerPro Enterprise v2.0
═══════════════════════════════════════════════════════ */

/* ─── LOGIN SCREEN ───────────────────────────────────── */
#login-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}
#login-screen::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 40%, rgba(245,158,11,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.login-box {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: 0 20px;
}
.login-logo {
  text-align: center;
  margin-bottom: 36px;
}
.login-logo-icon {
  font-size: 44px;
  display: block;
  margin-bottom: 10px;
}
.login-logo h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 44px;
  letter-spacing: 0.08em;
  color: var(--amber);
}
.login-logo p {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 4px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
}
.login-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--amber), transparent);
}
.login-sep {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--text3);
  font-family: 'DM Mono', monospace;
  font-size: 10px;
}
.login-sep::before, .login-sep::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.login-demo {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 16px;
}
.demo-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 6px;
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--text2);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.2s, color 0.2s;
}
.demo-btn:hover { border-color: var(--amber); color: var(--amber); }

/* ─── APP SHELL ──────────────────────────────────────── */
#app {
  display: none;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}
#app.visible { display: flex; }

/* ─── SIDEBAR ────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 200;
  transition: transform 0.3s ease;
}

.sidebar-brand {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar-brand-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 22px;
  letter-spacing: 0.05em;
  color: var(--amber);
}
.sidebar-brand-sub {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  color: var(--text3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 2px;
}

.sidebar-tenant {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}
.sidebar-tenant-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-tenant-plan {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  color: var(--cyan);
  letter-spacing: 0.08em;
  margin-top: 2px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}
.nav-section-label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text3);
  padding: 12px 20px 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  color: var(--text2);
  font-size: 13px;
  font-weight: 500;
  border-left: 2px solid transparent;
  user-select: none;
}
.nav-item:hover  { background: var(--surface2); color: var(--text); }
.nav-item.active { background: var(--amber-dim); color: var(--amber); border-left-color: var(--amber); }
.nav-icon        { font-size: 16px; min-width: 20px; text-align: center; }
.nav-badge {
  margin-left: auto;
  background: var(--red);
  color: #fff;
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 10px;
}

.sidebar-user {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.user-avatar {
  width: 34px; height: 34px;
  border-radius: var(--radius);
  background: var(--amber-dim);
  border: 1px solid var(--amber-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}
.user-name { font-size: 12px; font-weight: 700; color: var(--text); }
.user-role { font-family: 'DM Mono', monospace; font-size: 9px; color: var(--text3); letter-spacing: 0.06em; }
.user-logout {
  margin-left: auto;
  cursor: pointer;
  color: var(--text3);
  font-size: 16px;
  background: none;
  border: none;
  transition: color 0.2s;
  padding: 4px;
}
.user-logout:hover { color: var(--red); }

/* ─── MAIN CONTENT ───────────────────────────────────── */
#main {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  width: calc(100% - var(--sidebar-w));
}

.page-header {
  padding: 24px 28px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.page-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 34px;
  letter-spacing: 0.04em;
  color: var(--text);
}
.page-subtitle {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.1em;
  margin-top: 3px;
}
.page-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.page-body {
  padding: 20px 28px 48px;
  flex: 1;
}

/* ─── MOBILE HEADER ──────────────────────────────────── */
.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 54px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 300;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
}
.mobile-menu-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
}
.mobile-page-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--text3);
}
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 150;
}

/* ─── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 768px) {
  .mobile-header    { display: flex; }
  #sidebar          { transform: translateX(-100%); }
  #sidebar.open     { transform: translateX(0); }
  .sidebar-overlay.open { display: block; }
  #main             { margin-left: 0; width: 100%; padding-top: 54px; }
  .page-body        { padding: 16px 16px 48px; }
  .page-header      { padding: 16px 16px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}