/* ============================================
   NOVA Layout Styles
   App shell layouts
   ============================================ */

/* ── Auth Layout ── */
.auth-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}
.auth-layout__brand {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  background: linear-gradient(135deg, #4a00e0, #8e2de2, #2b174d);
  padding: 40px; text-align: center; position: relative;
  overflow: hidden;
}
.auth-layout__brand::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.05), transparent 60%);
}
.auth-layout__brand-title {
  font-family: var(--nova-font-display);
  font-size: 48px; font-weight: 800; letter-spacing: 8px;
  background: var(--nova-gradient-text);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 12px; position: relative;
}
.auth-layout__brand-tagline {
  font-size: var(--nova-text-lg); color: #c8b8ff;
  max-width: 320px; line-height: 1.6; position: relative;
}
.auth-layout__brand-orb {
  width: 120px; height: 120px; border-radius: 50%;
  background: radial-gradient(circle, #fff, #ffd06a55, #8a5cff33, transparent);
  box-shadow: 0 0 80px #8a5cff88;
  margin-bottom: 32px;
  animation: authOrbMini 4s ease-in-out infinite;
  position: relative;
}
.auth-layout__form {
  display: flex; align-items: center; justify-content: center;
  padding: 40px;
  background: var(--nova-bg-primary);
}
.auth-layout__form-container {
  width: 100%; max-width: 400px;
}

/* ── App Layout ── */
.app-layout {
  display: flex; height: 100vh; overflow: hidden;
  background: var(--nova-bg-primary);
}
.app-layout__sidebar {
  flex-shrink: 0;
  contain: layout style;
}
.app-layout__main {
  flex: 1; display: flex; flex-direction: column;
  min-width: 0; margin-left: var(--nova-sidebar-width, 260px);
  transition: margin-left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: margin-left;
  contain: layout;
}
.app-layout--collapsed .app-layout__main {
  margin-left: 64px;
}
.app-layout__content {
  flex: 1; padding: 28px 32px;
  overflow-y: auto;
  contain: layout style;
}

/* ── 3-Panel Layout ── */
.layout-3panel {
  display: flex; height: 100vh; overflow: hidden;
}
.layout-3panel__left {
  width: 280px; flex-shrink: 0;
  background: var(--nova-bg-sidebar);
  border-right: 1px solid var(--nova-border);
  display: flex; flex-direction: column;
  overflow-y: auto;
}
.layout-3panel__center {
  flex: 1; display: flex; flex-direction: column;
  min-width: 0;
}
.layout-3panel__right {
  width: 280px; flex-shrink: 0;
  background: var(--nova-bg-sidebar);
  border-left: 1px solid var(--nova-border);
  overflow-y: auto; padding: 20px;
}

/* ── Page Header ── */
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px; flex-wrap: wrap; gap: 12px;
}
.page-header__left {}
.page-header__title {
  font-size: var(--nova-text-2xl, 1.5rem); font-weight: 600;
  color: var(--nova-text-primary);
}
.page-header__subtitle {
  font-size: var(--nova-text-sm); color: var(--nova-text-muted);
  margin-top: 4px;
}
.page-header__actions { display: flex; gap: 8px; align-items: center; }

/* ── Tab Bar ── */
.tab-bar {
  display: flex; gap: 2px; border-bottom: 1px solid var(--nova-border);
  margin-bottom: 24px; overflow-x: auto;
}
.tab-bar__item {
  padding: 10px 18px; font-size: var(--nova-text-sm); font-weight: 500;
  color: var(--nova-text-muted); cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 150ms; white-space: nowrap;
  background: none; border-top: none; border-left: none; border-right: none;
}
.tab-bar__item:hover { color: var(--nova-text-secondary); }
.tab-bar__item--active {
  color: var(--nova-text-primary) !important;
  border-bottom-color: var(--nova-accent-indigo);
}

/* ── Filter Bar ── */
.filter-bar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.filter-bar__left { display: flex; gap: 6px; flex-wrap: wrap; }
.filter-bar__right { display: flex; gap: 8px; align-items: center; }

/* ── Section ── */
.section {
  background: var(--nova-bg-card, #111118);
  border: 1px solid var(--nova-border-card, rgba(30,30,46,0.8));
  border-radius: var(--nova-radius-lg, 12px);
  padding: 20px; margin-bottom: 16px;
}
.section__header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.section__title {
  font-size: var(--nova-text-base); font-weight: 600;
  color: var(--nova-text-primary);
}
.section__subtitle {
  font-size: var(--nova-text-xs); color: var(--nova-text-muted);
  margin-top: 2px;
}

/* ── Two Column Layout ── */
.two-col { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; }
.two-col--equal { grid-template-columns: 1fr 1fr; }
@media (max-width: 1024px) { .two-col, .two-col--equal { grid-template-columns: 1fr; } }

/* ── Grid Layouts ── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 1024px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

@keyframes authOrbMini { 0%,100%{transform:scale(1) rotate(0deg)} 50%{transform:scale(1.1) rotate(5deg)} }

/* ── Responsive: Tablet ── */
@media (max-width: 1024px) {
  .app-layout__sidebar { display: none; }
  .app-layout__main { margin-left: 0 !important; }
  .app-layout__content { padding: 20px 16px; }
}

/* ── Responsive: Mobile ── */
@media (max-width: 640px) {
  .app-layout__content { padding: 16px 12px; }
  .layout-3panel { flex-direction: column; }
  .layout-3panel__left, .layout-3panel__right { width: 100%; max-height: 50vh; border: none; }
}

/* ── Mobile Sidebar Toggle ── */
.app-layout__sidebar-toggle {
  display: none; position: fixed; top: 14px; left: 14px; z-index: 101;
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--nova-bg-card); border: 1px solid var(--nova-border);
  color: var(--nova-text-primary); font-size: 1.1rem;
  cursor: pointer; align-items: center; justify-content: center;
}
@media (max-width: 1024px) {
  .app-layout__sidebar-toggle { display: flex; }
}
.app-layout__sidebar-overlay {
  display: none; position: fixed; inset: 0; z-index: 99;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
}
.app-layout__sidebar-overlay.active { display: block; }
.app-layout__sidebar.open {
  display: block !important;
  position: fixed; left: 0; top: 0; z-index: 100;
  transform: translateX(0) !important;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Mobile Bottom Nav ── */
.app-layout__bottom-nav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 100; background: rgba(10,12,22,0.95);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(169,102,255,0.15);
  padding: 6px 0 env(safe-area-inset-bottom, 6px);
  justify-content: space-around;
}
.app-layout__bottom-nav-item {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 6px 12px; text-decoration: none; border-radius: 8px;
  color: var(--nova-text-muted, #64748b); font-size: 10px; font-weight: 500;
  transition: color 0.15s; min-width: 54px;
}
.app-layout__bottom-nav-item--active {
  color: #818cf8 !important;
}
.app-layout__bottom-nav-item:hover { color: #e2e8f0; }
.app-layout__bottom-nav-icon { font-size: 18px; line-height: 1; }

@media (max-width: 768px) {
  .app-layout__bottom-nav { display: flex; }
  .app-layout__content { padding-bottom: 72px !important; }
  .app-layout__main { padding-top: 56px; }
}