/**
 * Senna Executive Messaging Dashboard
 * Premium Design with Clear Desktop/Mobile Separation
 */

/* =================================
   CSS VARIABLES & FOUNDATIONS
   ================================= */

:root {
  --cream-primary: #fefcf6;
  --cream-secondary: #faf6ed;
  --cream-accent: #f5f0e5;
  --cream-dark: #f0ebe0;
  --green-primary: #1b3b2f;
  --green-secondary: #2d5444;
  --green-accent: #4a7259;
  --green-light: #6b8f6f;
  --gold-primary: #c8a882;
  --gold-secondary: #b8956c;
  --gold-light: #d4c4a8;
  --text-primary: #1a1a1a;
  --text-secondary: #555555;
  --text-tertiary: #888888;
  --border-elegant: #e5dfd0;
  --border-gold: #d4c4a8;
  --shadow-elegant: 0 12px 48px rgba(27, 59, 47, 0.06);
  --shadow-luxury: 0 24px 64px rgba(27, 59, 47, 0.08);
  --shadow-subtle: 0 4px 16px rgba(27, 59, 47, 0.04);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", sans-serif;
  background: linear-gradient(
    180deg,
    var(--cream-primary) 0%,
    var(--cream-secondary) 50%,
    var(--cream-accent) 100%
  );
  color: var(--text-primary);
  line-height: 1.6;
  font-weight: 300;
  letter-spacing: -0.01em;
  overflow-x: hidden;
}

/* =================================
   DESKTOP LAYOUT (Default)
   ================================= */

.senna-dashboard-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Desktop Left Sidebar */
.senna-desktop-sidebar {
  width: 280px;
  background: rgba(255, 255, 255, 0.95);
  border-right: 1px solid var(--border-elegant);
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(24px);
}

.senna-desktop-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border-elegant);
}

.senna-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.senna-brand-logo {
  font-family: "Playfair Display", serif;
  font-size: 24px;
  font-weight: 600;
  color: var(--green-primary);
}

.senna-brand-logo-dot {
  color: var(--gold-primary);
}

.senna-brand-name {
  font-family: "Inter", sans-serif;
  font-size: 18px;
  font-weight: 400;
  color: var(--text-primary);
}

.senna-brand-subtitle {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-left: 36px;
}

/* Desktop Navigation */
.senna-desktop-nav {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

.senna-nav-section {
  margin-bottom: 24px;
}

.senna-nav-title {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  font-weight: 500;
}

.senna-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
  margin-bottom: 4px;
  color: var(--text-secondary);
}

.senna-nav-item:hover {
  background: var(--cream-accent);
  color: var(--text-primary);
  transform: translateX(4px);
}

.senna-nav-item.active {
  background: linear-gradient(
    135deg,
    var(--green-primary) 0%,
    var(--green-secondary) 100%
  );
  color: white;
  box-shadow: var(--shadow-subtle);
}

.senna-nav-icon {
  width: 20px;
  height: 20px;
  stroke-width: 1.5;
}

.senna-nav-label {
  font-size: 14px;
  font-weight: 400;
}

.senna-nav-count {
  margin-left: auto;
  background: linear-gradient(
    135deg,
    var(--gold-primary) 0%,
    var(--gold-secondary) 100%
  );
  color: white;
  padding: 4px 10px;
  border-radius: 14px;
  font-size: 12px;
  font-weight: 600;
  min-width: 24px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(200, 168, 130, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.2);
  letter-spacing: 0.02em;
}

.senna-nav-item.active .senna-nav-count {
  background: linear-gradient(135deg, white 0%, var(--cream-accent) 100%);
  color: var(--green-primary);
  box-shadow: 0 2px 8px rgba(27, 59, 47, 0.2);
  border: 1px solid rgba(200, 168, 130, 0.2);
}

/* Desktop User Section */
.senna-desktop-user {
  padding: 20px;
  border-top: 1px solid var(--border-elegant);
  display: flex;
  align-items: center;
  gap: 12px;
}

.senna-user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  overflow: hidden;
}

.senna-user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.senna-user-info {
  flex: 1;
}

.senna-user-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.senna-user-title {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* Desktop Main Content */
.senna-desktop-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: white;
}

.senna-desktop-message-header {
  padding: 24px 32px;
  border-bottom: 1px solid var(--border-elegant);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.senna-message-title {
  font-family: "Playfair Display", serif;
  font-size: 24px;
  font-weight: 300;
  color: var(--text-primary);
}

.senna-desktop-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.senna-search-container {
  position: relative;
}

.senna-search-input {
  padding: 10px 16px 10px 40px;
  border: 1px solid var(--border-elegant);
  border-radius: 20px;
  width: 300px;
  background: var(--cream-accent);
  font-size: 14px;
}

.senna-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-tertiary);
}

.senna-compose-btn {
  background: linear-gradient(
    135deg,
    var(--green-primary) 0%,
    var(--green-secondary) 100%
  );
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 16px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-compose-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elegant);
}

/* Desktop Messages Area */
.senna-desktop-messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px 32px;
}

.senna-messages-list {
  display: grid;
  gap: 8px;
}

.senna-message-item {
  background: white;
  border: 1px solid var(--border-elegant);
  border-radius: 12px;
  padding: 16px 20px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 16px;
  align-items: center;
}

.senna-message-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elegant);
  border-color: var(--gold-primary);
}

.senna-message-item.unread {
  border-left: 4px solid var(--gold-primary);
  background: linear-gradient(135deg, rgba(200, 168, 130, 0.08) 0%, white 100%);
}

.senna-message-avatar {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--gold-primary),
    var(--gold-secondary)
  );
  color: white;
  font-weight: 600;
  font-size: 18px;
  text-transform: uppercase;
  position: relative;
}

.senna-message-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
}

.senna-message-avatar.has-image {
  background: transparent;
  color: transparent;
}

.senna-message-content {
  min-width: 0;
}

.senna-message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.senna-message-sender {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.senna-message-time {
  font-size: 12px;
  color: var(--text-tertiary);
}

.senna-message-subject {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.senna-message-preview {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.senna-message-actions {
  display: flex;
  gap: 4px;
}

.senna-action-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-elegant);
  background: white;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, transform 0.15s ease;
  color: var(--text-tertiary);
}

.senna-action-btn:hover {
  background: var(--green-primary);
  color: white;
  border-color: var(--green-primary);
  transform: scale(1.1);
}

/* =================================
   MOBILE LAYOUT - COMPLETELY SEPARATE
   ================================= */

.senna-mobile-container {
  display: none;
  flex-direction: column;
  height: 100vh;
  background: var(--cream-primary);
}

/* Mobile Header */
.senna-mobile-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-elegant);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 100;
}

.senna-mobile-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.senna-mobile-logo {
  font-family: "Playfair Display", serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--green-primary);
}

.senna-mobile-name {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-primary);
}

.senna-mobile-menu-btn {
  width: 40px;
  height: 40px;
  background: var(--cream-accent);
  border: 1px solid var(--border-elegant);
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-mobile-menu-btn:hover {
  background: var(--green-primary);
  color: white;
}

/* Mobile Content */
.senna-mobile-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  padding-bottom: 80px;
}

.senna-mobile-search {
  margin-bottom: 16px;
}

.senna-mobile-search input {
  width: 100%;
  padding: 12px 16px 12px 44px;
  border: 1px solid var(--border-elegant);
  border-radius: 16px;
  background: white;
  font-size: 14px;
}

.senna-mobile-messages {
  display: grid;
  gap: 8px;
}

.senna-mobile-message-item {
  background: white;
  border: 1px solid var(--border-elegant);
  border-radius: 12px;
  padding: 16px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-mobile-message-item:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-subtle);
}

.senna-mobile-message-item.unread {
  border-left: 4px solid var(--gold-primary);
}

.senna-mobile-message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.senna-mobile-sender {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.senna-mobile-time {
  font-size: 12px;
  color: var(--text-tertiary);
}

.senna-mobile-subject {
  font-size: 15px;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.senna-mobile-preview {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Mobile Bottom Navigation */
.senna-mobile-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-elegant);
  padding: 8px 0 max(8px, env(safe-area-inset-bottom));
  z-index: 1000;
}

.senna-mobile-nav-items {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 0 16px;
}

.senna-mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
  color: var(--text-tertiary);
  font-size: 11px;
  min-width: 60px;
  text-align: center;
}

.senna-mobile-nav-item.active {
  color: var(--green-primary);
  background: rgba(27, 59, 47, 0.08);
  transform: translateY(-2px);
}

.senna-mobile-nav-item svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.5;
}

/* Mobile Sidebar */
.senna-mobile-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(24px);
  z-index: 1000;
  transform: translateX(-100%);
  transition: transform 0.15s ease;
  border-right: 1px solid var(--border-elegant);
  box-shadow: var(--shadow-luxury);
  overflow-y: auto;
  padding-top: 70px;
}

.senna-mobile-sidebar.active {
  transform: translateX(0);
}

.senna-mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* =================================
   SHARED COMPONENTS
   ================================= */

/* Modal */
.senna-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-modal.active {
  opacity: 1;
  visibility: visible;
}

.senna-modal-content {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 20px;
  width: 100%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  backdrop-filter: blur(24px);
  border: 1px solid var(--border-elegant);
  box-shadow: var(--shadow-luxury);
}

.senna-modal-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border-elegant);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.senna-modal-header h2 {
  font-family: "Playfair Display", serif;
  font-size: 20px;
  font-weight: 300;
  color: var(--green-primary);
}

.senna-modal-close {
  background: transparent;
  border: none;
  font-size: 24px;
  color: var(--text-tertiary);
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-modal-close:hover {
  background: var(--cream-accent);
  color: var(--text-primary);
}

/* Form */
.senna-form {
  padding: 24px;
}

.senna-form-group {
  margin-bottom: 16px;
}

.senna-form-group label {
  display: block;
  margin-bottom: 6px;
  color: var(--text-primary);
  font-weight: 400;
  font-size: 14px;
}

.senna-form-group input,
.senna-form-group select,
.senna-form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-elegant);
  border-radius: 12px;
  font-size: 14px;
  background: var(--cream-accent);
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-form-group input:focus,
.senna-form-group select:focus,
.senna-form-group textarea:focus {
  outline: none;
  border-color: var(--gold-primary);
  background: white;
  box-shadow: 0 0 0 3px rgba(200, 168, 130, 0.15);
}

.senna-form-group textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

.senna-form-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 20px;
}

.senna-btn-primary {
  background: linear-gradient(
    135deg,
    var(--green-primary) 0%,
    var(--green-secondary) 100%
  );
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elegant);
}

.senna-btn-secondary {
  background: white;
  color: var(--green-primary);
  border: 1px solid var(--border-elegant);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-btn-secondary:hover {
  background: var(--cream-accent);
  border-color: var(--gold-primary);
}

/* =================================
   RESPONSIVE BREAKPOINTS
   ================================= */

/* Hide mobile elements on desktop */
@media (min-width: 769px) {
  .senna-mobile-container,
  .senna-mobile-nav,
  .senna-mobile-sidebar,
  .senna-mobile-overlay,
  .senna-hamburger {
    display: none !important;
  }
}

/* Show mobile layout on mobile */
@media (max-width: 768px) {
  .senna-dashboard-container {
    display: none !important;
  }

  .senna-mobile-container {
    display: flex !important;
  }

  .senna-mobile-nav {
    display: block !important;
  }

  /* Mobile-specific adjustments */
  .senna-modal {
    align-items: flex-end;
    padding: 0;
  }

  .senna-modal-content {
    border-radius: 20px 20px 0 0;
    max-width: 100%;
    max-height: 85vh;
  }

  .senna-form-actions {
    flex-direction: column;
    gap: 8px;
  }

  .senna-btn-primary,
  .senna-btn-secondary {
    width: 100%;
    padding: 14px;
  }
}

/* Message Viewer - Ultra Premium Floating Design */
.senna-message-viewer {
  position: fixed;
  top: 50%;
  right: 300px !important;
  transform: translateY(-50%);
  width: 680px;
  height: 85vh;
  max-height: 900px;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.92) 0%,
    rgba(254, 252, 246, 0.88) 40%,
    rgba(250, 246, 237, 0.85) 100%
  );
  backdrop-filter: blur(80px) saturate(200%) brightness(1.05);
  -webkit-backdrop-filter: blur(80px) saturate(200%) brightness(1.05);
  box-shadow: -20px 0 60px rgba(27, 59, 47, 0.08),
    -10px 0 40px rgba(200, 168, 130, 0.06), -5px 0 20px rgba(0, 0, 0, 0.04),
    0 0 120px rgba(200, 168, 130, 0.03), inset 1px 0 0 rgba(255, 255, 255, 0.6),
    inset -1px 0 0 rgba(200, 168, 130, 0.2);
  z-index: 1000;
  transition: transform 0.2s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  display: flex;
  flex-direction: column;
  border-radius: 24px 0 0 24px;
  border: 1px solid rgba(200, 168, 130, 0.15);
  border-right: none;
  overflow: hidden;
  margin-right: 20px;
}

.senna-message-viewer.active {
  right: -20px;
  transform: translateY(-50%) scale(1);
}

.senna-message-viewer::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(200, 168, 130, 0.08) 0%,
    transparent 50%
  );
  animation: floatingGlow 15s ease-in-out infinite;
  pointer-events: none;
}

@keyframes floatingGlow {
  0%,
  100% {
    transform: rotate(0deg) scale(1);
    opacity: 0.5;
  }
  50% {
    transform: rotate(180deg) scale(1.1);
    opacity: 0.8;
  }
}

.senna-viewer-header {
  padding: 32px 36px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.98) 0%,
    rgba(254, 252, 246, 0.95) 50%,
    rgba(250, 246, 237, 0.92) 100%
  );
  border-bottom: 1px solid rgba(200, 168, 130, 0.18);
  display: flex;
  align-items: center;
  gap: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 20px rgba(27, 59, 47, 0.03);
}

.senna-viewer-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  right: -100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--gold-primary) 25%,
    var(--gold-light) 50%,
    var(--gold-primary) 75%,
    transparent 100%
  );
  opacity: 0.6;
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.senna-viewer-back {
  width: 44px;
  height: 44px;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.9) 0%,
    rgba(254, 252, 246, 0.8) 100%
  );
  border: 2px solid rgba(200, 168, 130, 0.15);
  border-radius: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 4px 12px rgba(27, 59, 47, 0.06), 0 2px 4px rgba(0, 0, 0, 0.03),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  position: relative;
  overflow: hidden;
}

.senna-viewer-back::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(
    circle,
    rgba(27, 59, 47, 0.1) 0%,
    transparent 70%
  );
  transform: translate(-50%, -50%);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.senna-viewer-back:hover {
  background: linear-gradient(
    135deg,
    var(--green-primary) 0%,
    var(--green-secondary) 100%
  );
  color: white;
  border-color: var(--green-primary);
  transform: translateX(-6px) scale(1.05);
  box-shadow: 0 8px 24px rgba(27, 59, 47, 0.2), 0 4px 8px rgba(0, 0, 0, 0.1);
}

.senna-viewer-back:hover::after {
  width: 100px;
  height: 100px;
}

.senna-viewer-title {
  flex: 1;
  font-family: "Playfair Display", serif;
  font-size: 22px;
  font-weight: 300;
  color: var(--green-primary);
  letter-spacing: -0.02em;
}

.senna-viewer-actions {
  display: flex;
  gap: 10px;
}

.senna-viewer-action {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(200, 168, 130, 0.15);
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--text-secondary);
  backdrop-filter: blur(10px);
}

.senna-viewer-action:hover {
  background: linear-gradient(
    135deg,
    var(--gold-primary) 0%,
    var(--gold-secondary) 100%
  );
  color: white;
  border-color: var(--gold-primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(200, 168, 130, 0.3);
}

.senna-viewer-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 6px 30px;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.4) 0%,
    rgba(254, 252, 246, 0.2) 50%,
    rgba(250, 246, 237, 0.1) 100%
  );
  position: relative;
}

.senna-viewer-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.6) 0%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}

.senna-viewer-content::-webkit-scrollbar {
  width: 10px;
}

.senna-viewer-content::-webkit-scrollbar-track {
  background: linear-gradient(
    180deg,
    rgba(200, 168, 130, 0.03) 0%,
    rgba(200, 168, 130, 0.06) 100%
  );
  border-radius: 10px;
  margin: 10px 0;
}

.senna-viewer-content::-webkit-scrollbar-thumb {
  background: linear-gradient(
    180deg,
    rgba(200, 168, 130, 0.4) 0%,
    rgba(200, 168, 130, 0.6) 100%
  );
  border-radius: 10px;
  border: 2px solid transparent;
  background-clip: padding-box;
  box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.1);
}

.senna-viewer-content::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(
    180deg,
    var(--gold-primary) 0%,
    var(--gold-secondary) 100%
  );
  box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.15);
}

.senna-viewer-meta {
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(200, 168, 130, 0.15);
  position: relative;
}

.senna-viewer-meta::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-primary) 0%, transparent 100%);
}

.senna-viewer-subject {
  font-family: "Playfair Display", serif;
  font-size: 28px;
  font-weight: 400;
  color: var(--green-primary);
  margin-bottom: 20px;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.senna-viewer-from {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.6) 0%,
    rgba(250, 246, 237, 0.4) 100%
  );
  border-radius: 16px;
  border: 1px solid rgba(200, 168, 130, 0.1);
}

.senna-viewer-avatar {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(27, 59, 47, 0.08);
  border: 2px solid rgba(200, 168, 130, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 20px;
  color: #1e2d24;
  background: linear-gradient(135deg, #f0ead6, #fdfbf5);
  position: relative;
}

.senna-viewer-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.senna-viewer-avatar.has-image {
  background: transparent;
  color: transparent;
}

.senna-viewer-avatar.has-image img {
  display: block;
}

.senna-viewer-sender-info {
  flex: 1;
}

.senna-viewer-sender-name {
  font-size: 17px;
  font-weight: 500;
  color: var(--green-primary);
  margin-bottom: 2px;
}

.senna-viewer-sender-email {
  font-size: 14px;
  color: var(--text-tertiary);
  font-style: italic;
}

.senna-viewer-timestamp {
  font-size: 13px;
  color: var(--text-tertiary);
  padding: 6px 12px;
  background: rgba(200, 168, 130, 0.08);
  border-radius: 20px;
  font-weight: 500;
}

.senna-viewer-body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary);
  padding: 24px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 16px;
  border: 1px solid rgba(200, 168, 130, 0.08);
  min-height: 200px;
}

.senna-viewer-body p {
  margin-bottom: 18px;
}

.senna-viewer-footer {
  padding: 24px 32px 28px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95) 0%,
    rgba(254, 252, 246, 0.95) 100%
  );
  border-top: 1px solid rgba(200, 168, 130, 0.25);
  box-shadow: 0 -4px 20px rgba(27, 59, 47, 0.04);
}

.senna-quick-reply {
  display: flex;
  gap: 12px;
}

.senna-reply-input {
  flex: 1;
  padding: 14px 20px;
  background: white;
  border: 2px solid rgba(200, 168, 130, 0.15);
  border-radius: 16px;
  font-size: 14px;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-reply-input:focus {
  outline: none;
  border-color: var(--gold-primary);
  background: linear-gradient(135deg, white 0%, var(--cream-accent) 100%);
  box-shadow: 0 0 0 4px rgba(200, 168, 130, 0.1);
}

.senna-reply-send {
  padding: 14px 28px;
  background: linear-gradient(
    135deg,
    var(--green-primary) 0%,
    var(--green-secondary) 100%
  );
  color: white;
  border: none;
  border-radius: 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(27, 59, 47, 0.2);
  letter-spacing: 0.02em;
}

.senna-reply-send:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(27, 59, 47, 0.3);
  background: linear-gradient(
    135deg,
    var(--green-secondary) 0%,
    var(--green-primary) 100%
  );
}

/* Message Viewer Overlay */
.senna-viewer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: background 0.15s ease, transform 0.15s ease;
}

.senna-viewer-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Mobile Message Viewer */
@media (max-width: 768px) {
  .senna-message-viewer {
    width: 100%;
    height: 100vh;
    max-height: 100vh;
    right: -100%;
    top: 0;
    transform: translateY(0);
    border-radius: 0;
    margin-right: 0;
  }

  .senna-message-viewer.active {
    right: 0;
    transform: translateY(0) scale(1);
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.senna-message-item {
  animation: fadeIn 0.4s ease-out;
}

/* Notifications */
.senna-notification {
  position: fixed;
  top: 20px;
  right: -400px;
  max-width: 400px;
  padding: 16px 20px;
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-elegant);
  font-size: 14px;
  z-index: 10000;
  transition: right 0.15s ease;
  border-left: 4px solid var(--green-primary);
}

.senna-notification.active {
  right: 20px;
}

.senna-notification-success {
  border-left-color: #27ae60;
  background: linear-gradient(135deg, #e8f8f5 0%, white 100%);
}

.senna-notification-error {
  border-left-color: #e74c3c;
  background: linear-gradient(135deg, #fadbd8 0%, white 100%);
}

.senna-notification-info {
  border-left-color: var(--gold-primary);
  background: linear-gradient(135deg, var(--cream-accent) 0%, white 100%);
}

/* Loading States */
.senna-loading {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-tertiary);
  font-size: 14px;
  font-style: italic;
}

.senna-no-messages {
  text-align: center;
  padding: 40px 20px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 16px;
  border: 1px solid var(--border-elegant);
  color: var(--text-secondary);
}

.senna-error {
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.3);
  color: #c0392b;
  padding: 12px 16px;
  border-radius: 12px;
  margin: 16px;
  font-size: 14px;
}