/* ============================================================
   Opus AI — Dashboard Layout
   ============================================================ */

/* ─── Login Page ──────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--opus-bg-primary);
  position: relative;
  overflow: hidden;
}

.login-bg {
  position: absolute;
  inset: 0;
  background: var(--opus-gradient-mesh);
  z-index: 0;
}

.login-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.login-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--opus-violet-light);
  opacity: 0;
  animation: particle-float 15s linear infinite;
}

.login-card {
  position: relative;
  z-index: 2;
  width: 420px;
  max-width: 90vw;
  padding: var(--space-2xl);
  text-align: center;
  animation: scale-in 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.login-logo {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-lg);
  background: var(--opus-gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  animation: glow-pulse 3s ease-in-out infinite;
}

.login-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  background: var(--opus-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-subtitle {
  color: var(--opus-text-muted);
  font-size: 0.9375rem;
  margin-bottom: var(--space-xl);
}

.google-btn {
  width: 100%;
  padding: 14px 24px;
  background: #fff;
  color: #1f1f1f;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.google-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
}

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

.login-footer {
  margin-top: var(--space-xl);
  font-size: 0.8125rem;
  color: var(--opus-text-muted);
}

/* ─── Dashboard Shell ──────────────────── */
.dashboard {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--header-height) 1fr;
  min-height: 100vh;
  background: var(--opus-bg-primary);
}

/* ─── Header ──────────────────── */
.header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  background: var(--opus-bg-glass);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--opus-border);
  z-index: 100;
}

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

.header-logo {
  font-size: 1.125rem;
  font-weight: 700;
  background: var(--opus-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--opus-gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  -webkit-text-fill-color: #fff;
}

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

.header-nav-item {
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--opus-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-sans);
}

.header-nav-item:hover,
.header-nav-item.active {
  color: var(--opus-text-primary);
  background: rgba(120, 90, 255, 0.1);
}

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

.header-queue-badge {
  padding: 4px 12px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--opus-sky);
}

.header-user {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}
.header-user:hover { background: rgba(120, 90, 255, 0.1); }

.header-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid var(--opus-border);
  object-fit: cover;
}

/* ─── Sidebar ──────────────────── */
.sidebar {
  background: var(--opus-bg-secondary);
  border-right: 1px solid var(--opus-border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--opus-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-title {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--opus-text-muted);
}

.sidebar-search {
  padding: var(--space-md) var(--space-lg);
}

.sidebar-search-input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  background: rgba(10, 10, 25, 0.5);
  border: 1px solid var(--opus-border);
  border-radius: var(--radius-md);
  color: var(--opus-text-primary);
  font-size: 0.8125rem;
  outline: none;
  transition: border-color var(--transition-fast);
  font-family: var(--font-sans);
}
.sidebar-search-input:focus {
  border-color: var(--opus-violet);
}

.sidebar-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-sm);
}

.session-item {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 2px;
}

.session-item:hover {
  background: rgba(120, 90, 255, 0.08);
}

.session-item.active {
  background: rgba(120, 90, 255, 0.15);
  border: 1px solid var(--opus-border-active);
}

.session-item-title {
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-item-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  color: var(--opus-text-muted);
}

/* ─── Main Content ──────────────────── */
.main-content {
  overflow-y: auto;
  padding: var(--space-xl);
  background: var(--opus-gradient-glow);
}

.content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.content-title {
  font-size: 1.5rem;
  font-weight: 600;
}

.content-actions {
  display: flex;
  gap: var(--space-sm);
}

/* ─── Task Feed ──────────────────── */
.task-feed {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.task-card {
  padding: var(--space-lg);
  cursor: pointer;
  animation: slide-up var(--transition-slow) forwards;
  opacity: 0;
}

.task-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.task-card-id {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--opus-text-muted);
}

.task-card-prompt {
  font-size: 0.9375rem;
  color: var(--opus-text-primary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.task-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--opus-text-muted);
}

.task-card-files {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* ─── Task Detail Panel ──────────────────── */
.task-detail {
  animation: fade-in var(--transition-base) forwards;
}

.task-detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.task-detail-prompt {
  background: rgba(10, 10, 25, 0.5);
  border: 1px solid var(--opus-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.task-detail-actions {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

/* ─── New Task Form ──────────────────── */
.new-task-form {
  padding: var(--space-xl);
}

.new-task-form .form-textarea {
  min-height: 160px;
  font-size: 0.9375rem;
}

.image-urls-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.image-url-row {
  display: flex;
  gap: var(--space-sm);
}

.image-url-row .form-input {
  flex: 1;
}

/* ─── Responsive ──────────────────── */
@media (max-width: 1024px) {
  .dashboard {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

  .sidebar.mobile-open {
    display: flex;
    position: fixed;
    inset: var(--header-height) auto 0 0;
    width: var(--sidebar-width);
    z-index: 200;
    box-shadow: var(--shadow-lg);
  }
}

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

  .content-header {
    flex-direction: column;
    gap: var(--space-md);
    align-items: stretch;
  }

  .task-detail-actions {
    flex-wrap: wrap;
  }

  .header-nav {
    display: none;
  }
}