/* ============================================
   PROMED Admin Portal — Layout
   ============================================ */

/* ---- Auth Layout (Login/Register) ---- */
.auth-layout {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-darker) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  position: relative;
  overflow: hidden;
}

.auth-layout::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 70%, rgba(199, 37, 62, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
  animation: authBgPulse 15s ease-in-out infinite;
}

@keyframes authBgPulse {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.05) rotate(2deg); }
}

.auth-container {
  position: relative;
  width: 100%;
  max-width: 440px;
  padding: var(--space-8);
  z-index: 1;
}

.auth-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-2xl), 0 0 80px rgba(0, 0, 0, 0.1);
  animation: authCardIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes authCardIn {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.auth-logo {
  text-align: center;
  margin-bottom: var(--space-8);
}

.auth-logo svg {
  height: 48px;
  margin-bottom: var(--space-4);
}

.auth-logo h1 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.auth-logo p {
  font-size: var(--font-size-sm);
  color: var(--color-grey-500);
  margin-top: var(--space-1);
}

.auth-tabs {
  display: flex;
  background: var(--color-grey-100);
  border-radius: var(--radius-lg);
  padding: 4px;
  margin-bottom: var(--space-8);
}

.auth-tab {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: none;
  background: transparent;
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-grey-500);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
}

.auth-tab.active {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.auth-tab:hover:not(.active) {
  color: var(--color-grey-700);
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.auth-footer {
  text-align: center;
  margin-top: var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-grey-500);
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

/* Floating particles for auth background */
.auth-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.auth-particle {
  position: absolute;
  width: 6px;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% {
    transform: translateY(-100px) rotate(720deg);
    opacity: 0;
  }
}

/* ---- App Layout (Authenticated) ---- */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--color-primary-darker) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  transition: width var(--transition-base);
  overflow: hidden;
}

.sidebar-header {
  padding: var(--space-6) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  min-height: var(--header-height);
}

.sidebar-logo svg {
  height: 36px;
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  flex-direction: column;
}

.sidebar-brand-name {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.sidebar-brand-sub {
  font-size: var(--font-size-xs);
  opacity: 0.6;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4) var(--space-3);
  overflow-y: auto;
}

.sidebar-nav-section {
  margin-bottom: var(--space-6);
}

.sidebar-nav-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-1);
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  border-radius: var(--radius-lg);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  position: relative;
  margin-bottom: 2px;
  white-space: nowrap;
}

.sidebar-nav-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
}

.sidebar-nav-item.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

.sidebar-nav-item.active::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.sidebar-nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.8;
}

.sidebar-nav-item.active svg {
  opacity: 1;
}

.sidebar-nav-badge {
  margin-left: auto;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  min-width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  transition: background var(--transition-fast);
  cursor: pointer;
}

.sidebar-user:hover {
  background: rgba(255, 255, 255, 0.08);
}

.sidebar-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.sidebar-user-info {
  overflow: hidden;
}

.sidebar-user-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
  white-space: nowrap;
}

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0;
  left: var(--sidebar-width);
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-grey-200);
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  transition: left var(--transition-base);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--color-grey-600);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-toggle:hover {
  background: var(--color-grey-100);
  color: var(--color-grey-800);
}

.header-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-grey-500);
}

.header-breadcrumb span:last-child {
  color: var(--color-grey-800);
  font-weight: var(--font-weight-medium);
}

.header-breadcrumb svg {
  width: 14px;
  height: 14px;
  opacity: 0.5;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-search {
  position: relative;
}

.header-search input {
  width: 240px;
  padding: var(--space-2) var(--space-4) var(--space-2) var(--space-10);
  border: 1px solid var(--color-grey-200);
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  background: var(--color-grey-50);
  transition: all var(--transition-fast);
  outline: none;
}

.header-search input:focus {
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px var(--color-primary-50);
  width: 300px;
}

.header-search svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-grey-400);
}

.header-icon-btn {
  position: relative;
  width: 38px;
  height: 38px;
  border: none;
  background: transparent;
  color: var(--color-grey-500);
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.header-icon-btn:hover {
  background: var(--color-grey-100);
  color: var(--color-grey-700);
}

.header-icon-btn svg {
  width: 20px;
  height: 20px;
}

.header-notification-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  border: 2px solid var(--color-white);
}

.header-divider {
  width: 1px;
  height: 28px;
  background: var(--color-grey-200);
}

/* ---- Main Content ---- */
.main-content {
  margin-left: var(--sidebar-width);
  padding-top: var(--header-height);
  min-height: 100vh;
  transition: margin-left var(--transition-base);
}

.page-content {
  padding: var(--space-8);
  max-width: var(--content-max-width);
  animation: pageIn 0.35s ease;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.page-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-grey-900);
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-grey-500);
  margin-top: var(--space-1);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .header {
    left: 0;
  }

  .header-toggle {
    display: flex;
  }

  .main-content {
    margin-left: 0;
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: calc(var(--z-sidebar) - 1);
    backdrop-filter: blur(2px);
  }

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

@media (max-width: 640px) {
  .page-content {
    padding: var(--space-4);
  }

  .header {
    padding: 0 var(--space-4);
  }

  .header-search {
    display: none;
  }
}