/* ========================================
   ConvoFrame - Main Stylesheet
   ======================================== */

/* CSS Variables / Theming */
:root {
  /* Colors - Light Theme */
  --color-bg: #f8f9fa;
  --color-bg-secondary: #ffffff;
  --color-bg-tertiary: #f1f3f4;
  --color-text: #1a1a1a;
  --color-text-secondary: #5f6368;
  --color-text-muted: #9aa0a6;
  --color-border: #e0e0e0;
  --color-border-light: #f0f0f0;

  /* Brand Colors */
  --color-primary: #6366f1;
  --color-primary-hover: #4f46e5;
  --color-primary-light: #e0e7ff;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Shadows */
  --shadow-sm: 0 1px 2px 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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;

  /* Layout */
  --header-height: 60px;
  --sidebar-width: 320px;
  --tab-height: 48px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

/* Dark Theme */
[data-theme='dark'] {
  --color-bg: #0f0f0f;
  --color-bg-secondary: #1a1a1a;
  --color-bg-tertiary: #262626;
  --color-text: #ffffff;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  --color-border: #3f3f46;
  --color-border-light: #27272a;
  --color-primary-light: #312e81;

  --shadow-sm: 0 1px 2px 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, 0.4),
    0 4px 6px -2px rgba(0, 0, 0, 0.3);
}

/* ========================================
   Reset & Base Styles
   ======================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

/* ========================================
   Header
   ======================================== */

.header {
  height: var(--header-height);
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

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

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

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
}

/* Theme Toggle */
.theme-toggle {
  position: relative;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  width: 20px;
  height: 20px;
}

.theme-toggle .icon-moon {
  display: none;
}

[data-theme='dark'] .theme-toggle .icon-sun {
  display: none;
}

[data-theme='dark'] .theme-toggle .icon-moon {
  display: block;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

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

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

.btn-secondary {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.btn-icon {
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
}

.btn-icon:hover {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text);
}

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

.btn-full {
  width: 100%;
}

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

.btn-danger:hover {
  background-color: rgba(239, 68, 68, 0.1);
}

/* ========================================
   Main Content Layout
   ======================================== */

.main-content {
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--header-height));
}

/* Tab Navigation */
.tab-nav {
  display: flex;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.tab-btn svg {
  width: 18px;
  height: 18px;
}

.tab-btn:hover {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text);
}

.tab-btn.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* Workspace */
.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ========================================
   Sidebar
   ======================================== */

.sidebar {
  width: var(--sidebar-width);
  background-color: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  flex-shrink: 0;
}

.sidebar-content {
  padding: var(--spacing-md);
}

.sidebar-content.hidden {
  display: none;
}

/* Accordion */
.accordion-section {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-tertiary);
  color: var(--color-text);
  font-weight: 500;
  text-align: left;
  transition: background-color var(--transition-fast);
}

.accordion-header:hover {
  background-color: var(--color-border);
}

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

.accordion-title svg {
  width: 16px;
  height: 16px;
  color: var(--color-text-secondary);
}

.accordion-arrow {
  width: 16px;
  height: 16px;
  color: var(--color-text-secondary);
  transition: transform var(--transition-fast);
}

.accordion-section.open .accordion-arrow {
  transform: rotate(180deg);
}

.accordion-content {
  padding: var(--spacing-md);
  background-color: var(--color-bg-secondary);
  display: none;
}

.accordion-section.open .accordion-content {
  display: block;
}

/* ========================================
   Forms
   ======================================== */

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235f6368' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.form-select-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  padding-right: 32px;
  font-size: var(--font-size-xs);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  text-transform: none;
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.checkbox-label input[type='checkbox'] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
}

/* ========================================
   Platform Grid
   ======================================== */

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.platform-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.platform-item:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.platform-item.active {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.platform-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.platform-icon svg {
  width: 24px;
  height: 24px;
}

.platform-name {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-text);
  text-align: center;
}

/* ========================================
   People List
   ======================================== */

.people-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.person-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.person-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.person-avatar:hover {
  opacity: 0.8;
}

.person-info {
  flex: 1;
  min-width: 0;
}

.person-name-input {
  width: 100%;
  padding: var(--spacing-xs);
  font-size: var(--font-size-sm);
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

.person-name-input:hover {
  border-color: var(--color-border);
}

.person-name-input:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: var(--color-bg-secondary);
}

.person-role {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.person-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.avatar-file-input {
  display: none;
}

/* ========================================
   Messages List
   ======================================== */

.messages-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  max-height: 400px;
  overflow-y: auto;
}

.message-item {
  padding: var(--spacing-sm);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.message-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.message-sender-select {
  flex: 1;
  padding: var(--spacing-xs);
  font-size: var(--font-size-xs);
}

.message-time-input {
  width: 60px;
  padding: var(--spacing-xs);
  font-size: var(--font-size-xs);
  text-align: center;
}

.message-text-input {
  width: 100%;
  padding: var(--spacing-sm);
  font-size: var(--font-size-sm);
  min-height: 60px;
  resize: vertical;
}

.message-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: var(--spacing-sm);
}

/* ========================================
   Avatar Upload
   ======================================== */

.avatar-upload {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.avatar-preview {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.avatar-input {
  display: none;
}

/* ========================================
   Image Upload
   ======================================== */

.image-upload {
  position: relative;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.image-upload:hover {
  border-color: var(--color-primary);
}

.image-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

.image-upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xl);
  color: var(--color-text-muted);
}

.image-upload-placeholder svg {
  width: 32px;
  height: 32px;
}

.image-preview-container {
  position: relative;
}

.image-preview-container.hidden {
  display: none;
}

.image-preview {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
}

.image-remove {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background-color: rgba(0, 0, 0, 0.6);
  color: white;
  z-index: 3;
}

.image-remove:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

/* ========================================
   Preview Area
   ======================================== */

.preview-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  background-color: var(--color-bg);
  overflow: auto;
}

.preview-container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

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

.export-options .form-label {
  margin-bottom: 0;
  text-transform: none;
}

/* ========================================
   Modals
   ======================================== */

.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.hidden {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 480px;
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  margin: var(--spacing-md);
}

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

.modal-header h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.modal-body {
  padding: var(--spacing-lg);
  max-height: 400px;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

/* Saved Mockups List */
.saved-mockups-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.saved-mockup-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.saved-mockup-item:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.saved-mockup-info {
  flex: 1;
}

.saved-mockup-name {
  font-weight: 500;
  color: var(--color-text);
}

.saved-mockup-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.saved-mockup-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.no-mockups {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-text-muted);
}

.no-mockups.hidden {
  display: none;
}

/* ========================================
   Utility Classes
   ======================================== */

.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: 0;
}

/* ========================================
   Scrollbar Styling
   ======================================== */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
  .sidebar {
    width: 280px;
  }

  .platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header {
    padding: 0 var(--spacing-md);
  }

  .workspace {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    max-height: 50vh;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .preview-area {
    padding: var(--spacing-md);
  }
}