@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg-primary: #0a0e27;
  --bg-secondary: #151932;
  --bg-tertiary: #1e2139;
  --bg-card: rgba(30, 33, 57, 0.6);

  --text-primary: #ffffff;
  --text-secondary: #a0aec0;
  --text-muted: #718096;

  --accent-primary: #667eea;
  --accent-secondary: #764ba2;
  --accent-success: #48bb78;
  --accent-warning: #ed8936;
  --accent-danger: #f56565;

  --border-color: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Login Overlay */
.login-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
}

.login-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.4s ease-out;
}

.login-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

.login-logo svg {
  flex-shrink: 0;
}

.login-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  text-align: center;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.login-field label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.login-field input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  font-family: inherit;
  transition: var(--transition);
}

.login-field input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.login-error {
  color: var(--accent-danger);
  font-size: 0.8125rem;
  text-align: center;
  padding: 0.5rem;
  background: rgba(245, 101, 101, 0.1);
  border-radius: var(--radius-sm);
}

.login-btn {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  padding: 0.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  margin-top: 0.5rem;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.login-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Logout Button */
.logout-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logout-btn:hover {
  background: rgba(245, 101, 101, 0.15);
  color: var(--accent-danger);
}

/* App Layout */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 1000;
  transition: var(--transition);
}

.sidebar.collapsed {
  transform: translateX(-100%);
}

.desktop-sidebar-toggle {
  position: fixed;
  top: 12px;
  left: 260px;
  z-index: 1001;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 8px 0;
  border-radius: 0 6px 6px 0;
  cursor: pointer;
  transition: left 0.3s ease, background-color 0.2s;
  box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  font-size: 10px;
}

.desktop-sidebar-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--accent-primary);
}

.sidebar.collapsed ~ .desktop-sidebar-toggle,
.sidebar.collapsed + .desktop-sidebar-toggle {
  left: 0;
}

body.sidebar-collapsed .desktop-sidebar-toggle {
  left: 0;
}

body.sidebar-collapsed .main-wrapper {
  margin-left: 0;
}

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

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-logo svg {
  color: var(--accent-primary);
}

.sidebar-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: none;
}

.sidebar-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Sidebar Navigation */
.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
}

.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  opacity: 0;
  transition: var(--transition);
}

.nav-item:hover {
  background: rgba(102, 126, 234, 0.1);
  color: var(--text-primary);
}

.nav-item.active {
  background: rgba(102, 126, 234, 0.15);
  color: var(--text-primary);
}

.nav-item.active::before {
  opacity: 1;
}

.nav-item svg {
  flex-shrink: 0;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
}

.app-switcher {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 12px;
}

.app-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  color: var(--text-secondary);
  background: var(--bg-hover);
  border: 2px solid transparent;
  transition: all 0.2s;
}

.app-circle:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
  background: rgba(102, 126, 234, 0.15);
}

.app-circle.active {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: rgba(102, 126, 234, 0.2);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.user-details {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Main Wrapper */
.main-wrapper {
  flex: 1;
  margin-left: 260px;
  padding: 2rem;
  transition: var(--transition);
}

.sidebar.collapsed + .main-wrapper {
  margin-left: 0;
}

/* Header */
.header {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.header-title {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-subtitle {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Controls */
.controls {
  display: flex;
  align-items: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.control-group label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.control-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-family: inherit;
  transition: var(--transition);
}

.control-input:hover {
  border-color: var(--accent-primary);
}

.control-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-load {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-load:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-load:active {
  transform: translateY(0);
}

.btn-load:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Loading State */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  gap: 1rem;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--bg-tertiary);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-state p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Error State */
.error-state {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--accent-danger);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  max-width: 500px;
  margin: 2rem auto;
}

.error-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.error-state h3 {
  color: var(--accent-danger);
  margin-bottom: 0.5rem;
}

.error-state p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.btn-retry {
  background: var(--accent-danger);
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-retry:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(245, 101, 101, 0.4);
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.metric-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
  opacity: 0;
  transition: var(--transition);
}

.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(102, 126, 234, 0.3);
}

.metric-card:hover::before {
  opacity: 1;
}

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: white;
}

.metric-content {
  flex: 1;
  min-width: 0;
}

.metric-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.metric-value.positive {
  color: var(--accent-success);
}

.metric-value.negative {
  color: var(--accent-danger);
}

/* Table Section */
.table-section {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.table-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.data-table thead {
  background: var(--bg-tertiary);
  border-bottom: 2px solid var(--border-color);
}

.data-table th {
  padding: 0.875rem 1rem;
  text-align: left;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.875rem;
}

.data-table tbody tr {
  transition: var(--transition);
}

.data-table tbody tr:hover {
  background: rgba(102, 126, 234, 0.05);
}

.data-table tbody tr.week-separator td {
  border-top: 2px solid rgba(102, 126, 234, 0.3);
}

.data-table th.text-right,
.text-right {
  text-align: right;
}

.text-center {
  text-align: center;
}

.text-success {
  color: var(--accent-success);
}

.text-danger {
  color: var(--accent-danger);
}

.empty-message {
  color: var(--text-muted);
  padding: 1rem;
  font-size: 0.875rem;
}

/* Chart Card */
.chart-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.chart-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.chart-wrap {
  height: 360px;
  position: relative;
}

#marginChart {
  width: 100%;
  height: 100%;
  display: block;
}

.chart-note {
  color: var(--text-muted);
  font-size: 0.8125rem;
  margin-top: 0.75rem;
}

.export-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}

.export-note {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.export-status {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 1rem;
  min-height: 1.4em;
}

/* Tooltip */
.chart-tooltip {
  position: absolute;
  z-index: 5;
  min-width: 170px;
  background: rgba(21, 25, 50, 0.95);
  color: #f7fbff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 12px;
  line-height: 1.35;
  pointer-events: none;
  transform: translate(10px, -10px);
  box-shadow: var(--shadow-lg);
}

/* Day Focus */
.day-focus-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.day-focus-title {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.day-focus-date-picker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.day-focus-date-picker label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.day-focus-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.day-focus-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  animation: fadeIn 0.5s ease-out;
}

.day-focus-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
  opacity: 0;
  transition: var(--transition);
}

.day-focus-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(102, 126, 234, 0.3);
}

.day-focus-card:hover::before {
  opacity: 1;
}

.day-focus-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.day-focus-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: white;
}

.day-focus-card-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.day-focus-card-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.day-focus-card-value.positive {
  color: var(--accent-success);
}

.day-focus-card-value.negative {
  color: var(--accent-danger);
}

.day-focus-card-delta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  min-height: 1.5em;
}

.delta-positive {
  color: var(--accent-success);
  font-weight: 600;
}

.delta-negative {
  color: var(--accent-danger);
  font-weight: 600;
}

.delta-muted {
  color: var(--text-muted);
}

.delta-label {
  color: var(--text-muted);
  font-size: 0.8125rem;
}

.day-focus-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  gap: 1rem;
}

.day-focus-loading p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.day-focus-empty {
  color: var(--text-muted);
  text-align: center;
  padding: 3rem 1rem;
  font-size: 0.875rem;
}

/* View sections */
.hidden {
  display: none;
}

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

.metric-card,
.chart-card,
.table-section {
  animation: fadeIn 0.5s ease-out;
}

/* Mobile hamburger button (fixed) */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1001;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.5rem;
  cursor: pointer;
}

/* Responsive */
@media (max-width: 1024px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

  .sidebar-toggle {
    display: block;
  }

  .mobile-toggle {
    display: block;
  }

  .main-wrapper {
    margin-left: 0 !important;
    padding: 1rem;
    padding-top: 4rem;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .day-focus-grid {
    grid-template-columns: 1fr;
  }

  .day-focus-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .controls {
    flex-direction: column;
    align-items: stretch;
  }

  .control-group {
    width: 100%;
  }

  .control-input,
  .btn-load {
    width: 100%;
  }

  .header-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .table-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .main-wrapper {
    padding: 0.75rem;
    padding-top: 4rem;
  }

  .header {
    padding: 1rem;
  }

  .metric-card {
    padding: 1rem;
  }

  .data-table th,
  .data-table td {
    padding: 0.625rem 0.5rem;
    font-size: 0.8125rem;
  }
}