/* CSS Variables - Light Theme (Default) */
:root,
html:not([data-theme]),
html[data-theme="light"] {
    --bg: #ffffff;
    --surface: #f7f7f8;
    --text: #111827;
    --muted: #6b7280;
    --border: #e5e7eb;
    --primary: #3e8f6a;
    --primary-2: #2f6f53;
    --primary-light: rgba(62, 143, 106, 0.1);
    --primary-lighter: rgba(62, 143, 106, 0.05);
    --primary-border: rgba(62, 143, 106, 0.2);
    --danger: #dc2626;
    --danger-light: rgba(220, 38, 38, 0.1);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.1);
    --success: #16a34a;
    --success-light: rgba(22, 163, 74, 0.1);
    --info: #3b82f6;
    --info-light: rgba(59, 130, 246, 0.1);
    --purple: #8b5cf6;
    --purple-light: rgba(139, 92, 246, 0.1);
    --overlay: rgba(0, 0, 0, 0.5);
    --overlay-light: rgba(0, 0, 0, 0.1);
    --overlay-dark: rgba(0, 0, 0, 0.4);
    --white-overlay: rgba(255, 255, 255, 0.1);
    --white-overlay-light: rgba(255, 255, 255, 0.2);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --transition: all 150ms ease;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    
    /* Sidebar specific - Light Mode (Light Green) */
    --sidebar-bg: #e8f5e9;
    --sidebar-surface: #f1f8f4;
    --sidebar-text: #1b4332;
    --sidebar-muted: #52b788;
    --sidebar-border: #b7e4c7;
    --sidebar-hover: #d4edda;
    --sidebar-active: rgba(62, 143, 106, 0.25);
}

/* Dark Theme */
[data-theme="dark"] {
    --bg: #0f172a;
    --surface: #1e293b;
    --text: #f1f5f9;
    --muted: #94a3b8;
    --border: #334155;
    --primary: #3e8f6a;
    --primary-2: #4a9f7a;
    --primary-light: rgba(62, 143, 106, 0.15);
    --primary-lighter: rgba(62, 143, 106, 0.08);
    --primary-border: rgba(62, 143, 106, 0.3);
    --danger: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.15);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.15);
    --success: #22c55e;
    --success-light: rgba(34, 197, 94, 0.15);
    --info: #3b82f6;
    --info-light: rgba(59, 130, 246, 0.15);
    --purple: #8b5cf6;
    --purple-light: rgba(139, 92, 246, 0.15);
    --overlay: rgba(0, 0, 0, 0.7);
    --overlay-light: rgba(0, 0, 0, 0.2);
    --overlay-dark: rgba(0, 0, 0, 0.6);
    --white-overlay: rgba(255, 255, 255, 0.05);
    --white-overlay-light: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    
    /* Sidebar specific - Dark Mode (Dark Green) */
    --sidebar-bg: #1a3d2e;
    --sidebar-surface: #234d3a;
    --sidebar-text: #d4edda;
    --sidebar-muted: #81c784;
    --sidebar-border: #2d5a47;
    --sidebar-hover: #2d5a47;
    --sidebar-active: rgba(62, 143, 106, 0.3);
}

[dir="rtl"] {
    --font-family: 'Noto Sans Arabic', 'Segoe UI', Tahoma, Arial, sans-serif;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background: var(--bg) !important;
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.2s ease, color 0.2s ease;
}

#app-container {
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    background: var(--bg) !important;
    transition: background-color 0.2s ease;
}

/* Main App Area */
#app {
    flex: 1;
    width: 100%;
    padding: var(--spacing-md);
    max-width: 100%;
    margin-left: 0;
    padding-bottom: 80px;
    transition: margin-left var(--transition), background-color 0.2s ease;
    box-sizing: border-box;
    background: var(--bg) !important;
}

[dir="rtl"] #app {
    margin-left: 0;
    margin-right: auto;
    width: 100%;
}

@media (min-width: 768px) {
    #app {
        margin-left: 280px;
        padding-bottom: var(--spacing-md);
        width: calc(100% - 280px);
    }

    [dir="rtl"] #app {
        margin-left: 0;
        margin-right: 280px;
        width: calc(100% - 280px);
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-2);
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
[dir="rtl"] .text-right { text-align: left; }
.text-left { text-align: left; }
[dir="rtl"] .text-left { text-align: right; }

.text-muted { color: var(--muted); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Loading States */
.skeleton {
    background: linear-gradient(90deg, var(--surface) 25%, var(--border) 50%, var(--surface) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Page Container */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.page-header {
    margin-bottom: var(--spacing-lg);
}

.page-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.page-subtitle {
    color: var(--muted);
    font-size: 0.9375rem;
}

/* Focus Styles */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* RTL Adjustments */
[dir="rtl"] {
    direction: rtl;
    text-align: right;
}

[dir="rtl"] input[type="text"],
[dir="rtl"] input[type="email"],
[dir="rtl"] input[type="password"],
[dir="rtl"] input[type="tel"],
[dir="rtl"] input[type="number"],
[dir="rtl"] textarea,
[dir="rtl"] select {
    text-align: right;
}

/* Avatar Upload Styles */
.field--avatar {
  margin-bottom: 12px;
}

.avatar-upload-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.avatar-preview {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--white-overlay-light);
  background: var(--overlay-light);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
}

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

.avatar-upload-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

.btn--small {
  padding: 6px 12px;
  font-size: 12px;
}

.field__hint {
  margin: 2px 0 0;
  font-size: 10px;
  color: var(--muted);
}

/* Skills Input Styles */
.skills-input-wrapper {
  position: relative;
}

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
  min-height: 24px;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  border-radius: 16px;
  font-size: 12px;
  color: var(--text);
}

.skill-tag-remove {
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 150ms ease;
}

.skill-tag-remove:hover {
  color: var(--danger);
}

.skills-input-control {
  display: flex;
  gap: 6px;
  align-items: center;
}

.skills-input-control .field__input {
  flex: 1;
}

.skills-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  display: none;
  z-index: 10;
  backdrop-filter: blur(10px);
  max-height: 200px;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.skill-suggestion {
  width: 100%;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  transition: background 150ms ease;
}

.skill-suggestion:hover {
  background: var(--primary-light);
}

/* Additional UI Improvements */
.field__input:focus {
  transform: translateY(-1px);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 50px rgba(56, 163, 165, 0.25);
}

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

.avatar-preview {
  transition: all 200ms ease;
}

.avatar-preview:hover {
  border-color: var(--primary);
  transform: scale(1.02);
}

.skill-tag {
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn, .field__input { transition: none; }
  .btn__spinner { animation: none; }
}

/* Ensure page backgrounds use theme colors */
body {
    background: var(--bg) !important;
}

#app-container,
#app {
    background: var(--bg) !important;
}

/* Ensure page containers use theme backgrounds */
.profile-page-clean,
.requests-page,
.my-projects-page,
.browse-page-container,
.browse-page-premium {
    background: var(--bg) !important;
}