/* Adaplio Design System - 2025 Minimal SaaS Aesthetic */
:root {
  /* 2025 Color System */
  --color-primary: #FF7A00;
  --color-primary-hover: #E66900;
  --color-primary-light: #FFF4EC;
  --color-primary-on: #FFFFFF;

  --color-neutral-base: #1E2837;
  --color-neutral-base-on: #FFFFFF;
  --color-accent-teal: #00BFA5;
  --color-accent-teal-light: #E0F7F4;

  --color-success: #00BFA5;
  --color-success-on: #FFFFFF;
  --color-warning: #FF7A00;
  --color-warning-on: #FFFFFF;
  --color-error: #F04438;
  --color-error-on: #FFFFFF;

  --color-surface: #FFFFFF;
  --color-surface-on: #1E2837;
  --color-background: #F5F5F5;
  --color-background-on: #1E2837;

  /* Neutral Colors - Refined 2025 */
  --color-neutral-50: #FAFAFA;
  --color-neutral-100: #F5F5F5;
  --color-neutral-200: #EEEEEE;
  --color-neutral-300: #E0E0E0;
  --color-neutral-400: #BDBDBD;
  --color-neutral-500: #9E9E9E;
  --color-neutral-600: #757575;
  --color-neutral-700: #616161;
  --color-neutral-800: #424242;
  --color-neutral-900: #1E2837;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-xxl: 24px;
  --space-xxxl: 32px;
  --space-xxxxl: 40px;

  /* Border Radius - 2025 Modern */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-xxl: 24px;
  --radius-round: 9999px;

  /* Elevation - Light Mode */
  --elevation-0: none;
  --elevation-1: 0 1px 2px rgba(16, 24, 40, 0.05);
  --elevation-2: 0 1px 3px rgba(16, 24, 40, 0.1), 0 1px 2px rgba(16, 24, 40, 0.06);
  --elevation-3: 0 4px 8px -2px rgba(16, 24, 40, 0.1), 0 2px 4px -2px rgba(16, 24, 40, 0.06);
  --elevation-4: 0 12px 16px -4px rgba(16, 24, 40, 0.08), 0 4px 6px -2px rgba(16, 24, 40, 0.03);
  --elevation-5: 0 20px 24px -4px rgba(16, 24, 40, 0.08), 0 8px 8px -4px rgba(16, 24, 40, 0.03);

  /* Typography - 2025 Modern */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-family-display: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-xxl: 1.5rem;
  --font-size-xxxl: 1.875rem;
  --font-size-xxxxl: 2.25rem;
  --font-size-xxxxxl: 3rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Motion */
  --duration-fast: 120ms;
  --duration-base: 200ms;
  --duration-gentle: 280ms;
  --easing-standard: cubic-bezier(0.4, 0.0, 0.2, 1);
  --easing-decelerate: cubic-bezier(0.0, 0.0, 0.2, 1);
  --easing-accelerate: cubic-bezier(0.4, 0.0, 1, 1);

  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

/* Dark Mode Overrides */
:root[data-theme="dark"] {
  --color-primary: #7AB8FF;
  --color-primary-on: #0A1829;
  --color-secondary: #9CA3AF;
  --color-secondary-on: #000000;
  --color-success: #10B981;
  --color-success-on: #000000;
  --color-warning: #F59E0B;
  --color-warning-on: #000000;
  --color-error: #EF4444;
  --color-error-on: #000000;
  --color-surface: #0E1116;
  --color-surface-on: #E6EAF2;
  --color-background: #0A0E13;
  --color-background-on: #E6EAF2;

  /* Neutral Colors - Dark Mode */
  --color-neutral-50: #1F2937;
  --color-neutral-100: #374151;
  --color-neutral-200: #4B5563;
  --color-neutral-300: #6B7280;
  --color-neutral-500: #9CA3AF;
  --color-neutral-700: #D1D5DB;
  --color-neutral-900: #F3F4F6;

  /* Elevation - Dark Mode */
  --elevation-1: 0 1px 2px rgba(20, 24, 30, 0.24);
  --elevation-2: 0 1px 3px rgba(20, 24, 30, 0.32), 0 1px 2px rgba(20, 24, 30, 0.24);
  --elevation-3: 0 4px 8px -2px rgba(20, 24, 30, 0.32), 0 2px 4px -2px rgba(20, 24, 30, 0.24);
  --elevation-4: 0 12px 16px -4px rgba(20, 24, 30, 0.40), 0 4px 6px -2px rgba(20, 24, 30, 0.24);
  --elevation-5: 0 20px 24px -4px rgba(20, 24, 30, 0.40), 0 8px 8px -4px rgba(20, 24, 30, 0.24);

  color-scheme: dark;
}

/* Global Focus Styles - WCAG 2.2 Compliant */
*:focus {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

*:focus:not(:focus-visible) {
  outline: none;
}

*:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Motion Preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Base Body Styles */
body {
  font-family: var(--font-family-primary);
  background-color: var(--color-background);
  color: var(--color-background-on);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv11' 1; /* Inter stylistic alternates */
}

/* Loading Progress Styles */
.loading-progress {
  position: relative;
  display: block;
  width: 8rem;
  height: 8rem;
  margin: 20vh auto 1rem auto;
}

.loading-progress circle {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 0.6rem;
  transform-origin: 50% 50%;
  transform: rotate(-90deg);
}

.loading-progress circle:last-child {
  stroke-dasharray: calc(3.141 * var(--size, 1) * 80), 500%;
  stroke-dashoffset: calc(3.141 * var(--size, 1) * -80);
  animation: loading-progress-sweep 2s ease-in-out infinite;
}

@keyframes loading-progress-sweep {
  0% {
    stroke-dasharray: 0%, 500%;
    stroke-dashoffset: 0%;
  }
  50% {
    stroke-dasharray: 100%, 500%;
    stroke-dashoffset: -15%;
  }
  100% {
    stroke-dasharray: 100%, 500%;
    stroke-dashoffset: -125%;
  }
}

.loading-progress-text {
  position: absolute;
  text-align: center;
  font-weight: var(--font-weight-medium);
  color: var(--color-background-on);
  top: calc(20vh + 3.25rem);
  left: calc(50% - 8rem);
  width: 16rem;
}

/* Utility Classes */
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }

.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-surface { background-color: var(--color-surface); }
.bg-background { background-color: var(--color-background); }

.elevation-1 { box-shadow: var(--elevation-1); }
.elevation-2 { box-shadow: var(--elevation-2); }
.elevation-3 { box-shadow: var(--elevation-3); }
.elevation-4 { box-shadow: var(--elevation-4); }
.elevation-5 { box-shadow: var(--elevation-5); }

/* Motion Utilities */
.transition-fast {
  transition-duration: var(--duration-fast);
  transition-timing-function: var(--easing-standard);
}

.transition-base {
  transition-duration: var(--duration-base);
  transition-timing-function: var(--easing-standard);
}

.transition-gentle {
  transition-duration: var(--duration-gentle);
  transition-timing-function: var(--easing-standard);
}

/* Microinteractions */
.btn-scale:active {
  transform: scale(0.98);
}

.card-hover {
  transition: transform var(--duration-base) var(--easing-standard),
              box-shadow var(--duration-base) var(--easing-standard);
}

.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-4);
}

/* Container Queries for Responsive Design */
@container (max-width: 600px) {
  .board-grid {
    grid-template-columns: 1fr;
  }
}

@container (min-width: 601px) and (max-width: 900px) {
  .board-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@container (min-width: 901px) {
  .board-grid {
    grid-template-columns: repeat(7, 1fr);
  }
}

/* Accessibility Improvements */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --elevation-1: 0 0 0 1px var(--color-neutral-500);
    --elevation-2: 0 0 0 2px var(--color-neutral-700);
    --elevation-3: 0 0 0 3px var(--color-neutral-700);
    --elevation-4: 0 0 0 4px var(--color-neutral-900);
    --elevation-5: 0 0 0 5px var(--color-neutral-900);
  }
}

/* Animations */
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Layout Responsive Styles */
@media (max-width: 900px) {
  .content-container {
    padding: var(--space-lg) var(--space-md) !important;
    margin-bottom: 80px !important; /* Space for bottom nav */
  }

  .primary-cta {
    display: none !important;
  }

  .nav-item {
    margin: 0 var(--space-sm) var(--space-xs) var(--space-sm) !important;
    padding: var(--space-md) !important;
    min-height: 48px !important;
  }

  .nav-section-title {
    padding: var(--space-md) var(--space-md) var(--space-sm) var(--space-md) !important;
  }
}

@media (max-width: 600px) {
  .brand-text {
    display: none !important;
  }

  .content-container {
    padding: var(--space-md) !important;
  }
}

/* Drawer mini mode adjustments */
@media (min-width: 901px) {
  .mud-drawer-mini .nav-text {
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity var(--duration-fast) var(--easing-standard),
                transform var(--duration-fast) var(--easing-standard);
  }

  .mud-drawer-mini:hover .nav-text {
    opacity: 1;
    transform: translateX(0);
  }

  .mud-drawer-mini .nav-section-title {
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity var(--duration-fast) var(--easing-standard),
                transform var(--duration-fast) var(--easing-standard);
  }

  .mud-drawer-mini:hover .nav-section-title {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 2025 Minimal SaaS Components */
.client-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-2);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  transition: all var(--duration-base) var(--easing-standard);
}

.client-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-3);
}

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

.client-alias {
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-900);
}

.client-display-name {
  font-size: var(--font-size-sm);
  color: var(--color-neutral-600);
  margin-top: var(--space-xs);
}

.scope-pill {
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-round);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.scope-pill--summary {
  background: var(--color-accent-teal-light);
  color: var(--color-accent-teal);
}

.scope-pill--private {
  background: var(--color-neutral-100);
  color: var(--color-neutral-600);
}

.adherence-ring {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.adherence-ring svg {
  width: 40px;
  height: 40px;
  transform: rotate(-90deg);
}

.adherence-percentage {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-900);
}

.last-activity {
  font-size: var(--font-size-xs);
  color: var(--color-neutral-500);
}

.three-dot-menu {
  background: transparent;
  border: none;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--easing-standard);
}

.three-dot-menu:hover {
  background: var(--color-neutral-100);
}

.slide-panel {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background: var(--color-surface);
  box-shadow: var(--elevation-5);
  z-index: var(--z-modal);
  transition: right var(--duration-gentle) var(--easing-standard);
  overflow-y: auto;
}

.slide-panel.open {
  right: 0;
}

.slide-panel-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  z-index: calc(var(--z-modal) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-gentle) var(--easing-standard);
}

.slide-panel-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-round);
  box-shadow: var(--elevation-4);
  color: var(--color-primary-on);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-fixed);
  transition: all var(--duration-base) var(--easing-standard);
}

.fab:hover {
  background: var(--color-primary-hover);
  transform: scale(1.05);
  box-shadow: var(--elevation-5);
}

.fab:active {
  transform: scale(0.95);
}

.modern-header {
  font-family: var(--font-family-display);
  font-size: var(--font-size-xxxl);
  font-weight: var(--font-weight-bold);
  color: var(--color-neutral-900);
  margin-bottom: var(--space-sm);
}

.modern-subheader {
  font-size: var(--font-size-lg);
  color: var(--color-neutral-600);
  font-weight: var(--font-weight-normal);
}

.notification-item {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-neutral-200);
  margin-bottom: var(--space-sm);
}

.notification-item.unread {
  border-left: 4px solid var(--color-primary);
  background: var(--color-primary-light);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-xxxxl) var(--space-xl);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  color: var(--color-neutral-400);
  margin: 0 auto var(--space-lg);
}

.empty-state-title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-700);
  margin-bottom: var(--space-sm);
}

.empty-state-description {
  font-size: var(--font-size-base);
  color: var(--color-neutral-500);
  margin-bottom: var(--space-xl);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* Responsive Utilities */
@media (max-width: 768px) {
  .client-card {
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
  }

  .modern-header {
    font-size: var(--font-size-xxl);
  }

  .slide-panel {
    width: 100vw;
    right: -100vw;
  }
}