:root {
  --bg-dark: #0a0e17;
  --card-bg: rgba(22, 28, 45, 0.78);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-hover-border: rgba(139, 92, 246, 0.4);
  --accent-purple: #8b5cf6;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-orange: #f6821f;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

.glow-bg {
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 600px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, rgba(6, 182, 212, 0.08) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 3rem 1.5rem;
  position: relative;
  z-index: 1;
  flex: 1;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.2rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--card-border);
  flex-wrap: wrap;
  gap: 1rem;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.35);
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.12);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  font-weight: 600;
}

.server-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
  border: 1px solid var(--card-border);
}

.server-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent-green);
}

.header-user-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.user-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 0.35rem 0.8rem 0.35rem 0.4rem;
  border-radius: 30px;
  font-size: 0.85rem;
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  color: #fff;
}

.user-email-text {
  font-weight: 500;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Buttons */
.btn {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-purple), #7c3aed);
  color: white;
  box-shadow: 0 2px 10px rgba(139, 92, 246, 0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #9333ea, #6d28d9);
  transform: translateY(-1px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--card-border);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-cyan), #0284c7);
  color: white;
  box-shadow: 0 2px 10px rgba(6, 182, 212, 0.3);
}
.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.4);
}

.btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.75rem;
}

/* Toolbar / Subheader */
.toolbar-panel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.view-tabs {
  display: flex;
  gap: 0.4rem;
  background: rgba(0, 0, 0, 0.35);
  padding: 0.3rem;
  border-radius: 10px;
  border: 1px solid var(--card-border);
}

.view-tab {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  border: none;
  background: transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s;
}

.view-tab:hover {
  color: var(--text-main);
}

.view-tab.active {
  background: var(--card-bg);
  color: var(--text-main);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--card-border);
  font-weight: 600;
}

.tab-badge {
  font-size: 0.7rem;
  padding: 0.1rem 0.45rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
}

.view-tab.active .tab-badge {
  background: var(--accent-purple);
  color: white;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box input {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 0.55rem 1rem 0.55rem 2.2rem;
  border-radius: 8px;
  font-size: 0.85rem;
  width: 260px;
  font-family: var(--font-sans);
  transition: all 0.2s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  width: 320px;
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

.search-box-icon {
  position: absolute;
  left: 0.75rem;
  color: var(--text-dim);
  font-size: 0.85rem;
  pointer-events: none;
}

/* Board Columns Grid */
.board-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 960px) {
  .board-grid {
    grid-template-columns: 1fr;
  }
}

.board-column {
  background: rgba(18, 23, 38, 0.6);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 480px;
  backdrop-filter: blur(12px);
}

.column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--card-border);
}

.column-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.column-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-weight: 600;
}

.tag-announcement {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.tag-direct {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  flex: 1;
}

/* Message Card */
.msg-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  position: relative;
  overflow: hidden;
}

.msg-card:hover {
  border-color: var(--card-hover-border);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

.msg-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.card-announcement::before {
  background: linear-gradient(to bottom, var(--accent-amber), var(--accent-orange));
}

.card-direct::before {
  background: linear-gradient(to bottom, var(--accent-blue), var(--accent-purple));
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.6rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.35;
  word-break: break-word;
}

.card-badges {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 500;
}

.badge-exp {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  border: 1px solid var(--card-border);
}

.badge-exp.urgent {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-red);
  border-color: rgba(239, 68, 68, 0.3);
}

.badge-type {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
  font-family: var(--font-mono);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.meta-sender {
  color: var(--text-main);
  font-weight: 500;
}

.recipient-tags {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.recipient-tag {
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-blue);
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.card-action-hint {
  color: var(--accent-cyan);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

/* Empty state */
.empty-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-muted);
  gap: 0.8rem;
  border: 1px dashed var(--card-border);
  border-radius: 12px;
  margin: auto 0;
}

.empty-icon {
  font-size: 2.2rem;
  opacity: 0.7;
}

.empty-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.empty-desc {
  font-size: 0.8rem;
  max-width: 240px;
  line-height: 1.4;
}

/* Login Overlay */
.login-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1.5rem;
  transition: opacity 0.3s;
}

.login-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 2.5rem;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  position: relative;
}

.login-card h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.login-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 1.8rem;
  line-height: 1.5;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-group input, .form-group select, .form-group textarea {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 0.7rem 1rem;
  border-radius: 9px;
  font-size: 0.9rem;
  font-family: var(--font-sans);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
}

.quick-logins {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--card-border);
}

.quick-logins-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.quick-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.quick-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.quick-pill:hover {
  background: rgba(139, 92, 246, 0.15);
  color: var(--text-main);
  border-color: var(--accent-purple);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  padding: 1.5rem;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: #111726;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  width: 100%;
  max-width: 650px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6);
  transform: scale(0.96);
  transition: transform 0.2s;
}

.modal-backdrop.active .modal {
  transform: scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 1.3rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.2rem;
}

.btn-close:hover {
  color: #fff;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--card-border);
  display: flex;
  justify-content: flex-end;
  gap: 0.8rem;
}

/* Content viewer in modal */
.content-preview-box {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 340px;
  overflow-y: auto;
  color: #e2e8f0;
  line-height: 1.6;
}

.content-img-preview {
  max-width: 100%;
  max-height: 360px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  display: block;
  margin: 0 auto;
}

/* Meta grid in detail modal */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.02);
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid var(--card-border);
}

.detail-item-title {
  color: var(--text-dim);
  font-size: 0.72rem;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.detail-item-val {
  font-weight: 500;
  color: var(--text-main);
  word-break: break-all;
}

/* Segmented Control */
.segmented-control {
  display: flex;
  background: rgba(0, 0, 0, 0.4);
  padding: 0.25rem;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  margin-bottom: 0.5rem;
}

.segment-btn {
  flex: 1;
  padding: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  border: none;
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.segment-btn.active {
  background: var(--accent-purple);
  color: white;
  font-weight: 600;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  z-index: 200;
  pointer-events: none;
}

.toast {
  background: #1f293d;
  border: 1px solid var(--card-border);
  color: #fff;
  padding: 0.8rem 1.2rem;
  border-radius: 10px;
  font-size: 0.85rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  animation: slideIn 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  pointer-events: auto;
}

.toast.success { border-color: var(--accent-green); }
.toast.error { border-color: var(--accent-red); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}