/**
 * Video Collaboration Platform
 * Main Stylesheet
 */

/* ===== Base Styles ===== */
:root {
  /* Color palette */
  --color-dark-bg: #121212;
  --color-dark-surface: #1F1F1F;
  --color-dark-border: #333333;
  --color-dark-divider: #2A2A2A;
  
  --color-olive: #556B2F;
  --color-olive-light: #6B8E23;
  --color-olive-dark: #3A4D20;
  
  --color-gold: #DAA520;
  --color-gold-light: #FFCC00;
  --color-gold-dark: #B8860B;
  
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #AAAAAA;
  --color-text-disabled: #777777;
  
  --color-error: #CF6679;
  --color-success: #81C784;
  --color-warning: #FFCC00;
  --color-info: #64B5F6;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-xxl: 24px;
  
  /* Borders & Shadows */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.14);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.16);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
  
  /* Z-index layers */
  --z-index-base: 1;
  --z-index-dropdown: 10;
  --z-index-sticky: 20;
  --z-index-fixed: 30;
  --z-index-modal-backdrop: 40;
  --z-index-modal: 50;
  --z-index-popover: 60;
  --z-index-tooltip: 70;
}

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

html, body {
  height: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-dark-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

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

a:hover {
  color: var(--color-gold-light);
  text-decoration: underline;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

button {
  cursor: pointer;
}

/* Hide scrollbar for Chrome, Safari and Opera */
.hide-scrollbar::-webkit-scrollbar {
  display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
.hide-scrollbar {
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}

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

h1 {
  font-size: var(--font-size-xxl);
}

h2 {
  font-size: var(--font-size-xl);
}

h3 {
  font-size: var(--font-size-lg);
}

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

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--border-radius-md);
  font-weight: 500;
  text-align: center;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
}

.btn:hover {
  text-decoration: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background-color: var(--color-olive);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-olive-light);
  color: white;
}

.btn-secondary {
  background-color: var(--color-dark-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-dark-border);
}

.btn-secondary:hover {
  background-color: var(--color-dark-border);
}

.btn-danger {
  background-color: var(--color-error);
  color: white;
}

.btn-danger:hover {
  background-color: #e57373;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 50%;
  background-color: transparent;
  border: none;
  transition: background-color var(--transition-fast);
}

.btn-icon:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.btn-icon .icon {
  width: 20px;
  height: 20px;
}

/* Icons */
.icon {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.icon-sm {
  width: 16px;
  height: 16px;
}

.icon-lg {
  width: 32px;
  height: 32px;
}

.icon-large {
  width: 48px;
  height: 48px;
  opacity: 0.6;
}

.spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
}

.form-row {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.form-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.required {
  color: var(--color-error);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--border-radius-md);
  background-color: var(--color-dark-surface);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
  border-color: var(--color-gold);
  outline: none;
  box-shadow: 0 0 0 2px rgba(218, 165, 32, 0.2);
}

textarea {
  min-height: 100px;
  resize: vertical;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23AAAAAA' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-sm) center;
  background-size: 16px;
  padding-right: var(--spacing-xl);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.checkbox-group label {
  margin-bottom: 0;
  cursor: pointer;
}

.toggle-checkbox {
  position: relative;
  appearance: none;
  width: 40px;
  height: 22px;
  border-radius: 11px;
  background-color: var(--color-dark-border);
  transition: background-color var(--transition-fast);
  cursor: pointer;
}

.toggle-checkbox::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: white;
  transition: transform var(--transition-fast);
}

.toggle-checkbox:checked {
  background-color: var(--color-olive);
}

.toggle-checkbox:checked::before {
  transform: translateX(18px);
}

.range-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background-color: var(--color-dark-border);
  outline: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--color-gold);
  cursor: pointer;
}

.range-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 50%;
  background-color: var(--color-gold);
  cursor: pointer;
}

.range-value {
  margin-top: var(--spacing-xs);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* File Upload */
.file-upload-container {
  margin-bottom: var(--spacing-md);
}

.upload-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  border: 2px dashed var(--color-dark-border);
  border-radius: var(--border-radius-md);
  background-color: var(--color-dark-surface);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.upload-dropzone:hover, .upload-dropzone.dragover {
  border-color: var(--color-gold);
  background-color: rgba(218, 165, 32, 0.05);
}

.upload-dropzone p {
  margin: var(--spacing-sm) 0 0;
  text-align: center;
}

.upload-info {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.file-preview {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  background-color: var(--color-dark-surface);
}

.preview-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-grow: 1;
}

.file-info {
  flex-grow: 1;
}

.file-name {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-size, .file-type {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Alerts */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-md);
  background-color: var(--color-dark-surface);
  border-left: 4px solid transparent;
}

.alert-success {
  border-color: var(--color-success);
  background-color: rgba(129, 199, 132, 0.1);
}

.alert-error {
  border-color: var(--color-error);
  background-color: rgba(207, 102, 121, 0.1);
}

.alert-warning {
  border-color: var(--color-warning);
  background-color: rgba(255, 204, 0, 0.1);
}

.alert-info {
  border-color: var(--color-info);
  background-color: rgba(100, 181, 246, 0.1);
}

.alert strong {
  display: block;
  margin-bottom: var(--spacing-xs);
}

.alert-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.error-list {
  margin-left: var(--spacing-md);
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-index-modal);
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  background-color: var(--color-dark-surface);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-dark-border);
}

.modal-body {
  padding: var(--spacing-lg);
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 24px;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-text-primary);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

/* Context Menu */
.context-menu {
  position: absolute;
  min-width: 180px;
  background-color: var(--color-dark-surface);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  z-index: var(--z-index-dropdown);
  overflow: hidden;
}

.context-menu ul {
  list-style: none;
}

.context-menu li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.context-menu li:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.context-menu li.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.context-menu li.divider {
  height: 1px;
  background-color: var(--color-dark-border);
  padding: 0;
  margin: var(--spacing-xs) 0;
}

/* Notifications */
.notification-container {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: var(--z-index-tooltip);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 350px;
}

.notification {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background-color: var(--color-dark-surface);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  animation: slideIn var(--transition-normal);
}

.notification.fade-out {
  animation: fadeOut var(--transition-normal) forwards;
}

.notification-success {
  border-left: 4px solid var(--color-success);
}

.notification-error {
  border-left: 4px solid var(--color-error);
}

.notification-info {
  border-left: 4px solid var(--color-info);
}

.notification-message {
  flex-grow: 1;
}

.notification-close {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 18px;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.notification-close:hover {
  color: var(--color-text-primary);
}

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

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* Status badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
}

.status-processing {
  background-color: rgba(255, 204, 0, 0.15);
  color: var(--color-warning);
}

.status-active {
  background-color: rgba(129, 199, 132, 0.15);
  color: var(--color-success);
}

.status-complete {
  background-color: rgba(100, 181, 246, 0.15);
  color: var(--color-info);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
}

.empty-state .icon-large {
  margin-bottom: var(--spacing-md);
}

.empty-state p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

/* Time display */
.time-display {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
}

/* Tooltips */
.tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: rgba(0, 0, 0, 0.8);
  color: white;
  font-size: var(--font-size-xs);
  border-radius: var(--border-radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: var(--z-index-tooltip);
}

.tooltip.visible {
  opacity: 1;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.divider {
  height: 1px;
  background-color: var(--color-dark-border);
  margin: var(--spacing-md) 0;
}

/* Responsive Utilities */
@media (max-width: 768px) {
  .form-row {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .modal-content {
    max-width: 90%;
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-sm);
  }
  
  .hide-on-mobile {
    display: none !important;
  }
}