/* ==========================================================================
   CV EDITOR & MANAGEMENT SYSTEM - MAIN STYLESHEET
   Independent Vanilla CSS
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;
  --secondary: #0ea5e9;
  --navy-dark: #1b263b;
  --navy-sidebar: #223147;
  
  --success: #10b981;
  --success-hover: #059669;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-light: #fef2f2;
  --warning: #f59e0b;
  
  --bg-main: #f1f5f9;
  --bg-card: #ffffff;
  --bg-input: #f8fafc;
  --border-color: #e2e8f0;
  --border-focus: #3b82f6;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
html, body {
  height: 100vh;
  max-height: 100vh;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   APP HEADER
   ========================================================================== */

.app-header {
  background: #1e293b;
  color: #ffffff;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #38bdf8, #2563eb);
  color: #ffffff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
}

.brand-text h1 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-text p {
  font-size: 0.75rem;
  color: #94a3b8;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   BUTTONS & CONTROLS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-success {
  background-color: var(--success);
  color: #ffffff;
}

.btn-success:hover {
  background-color: var(--success-hover);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-outline {
  background-color: transparent;
  border-color: #475569;
  color: #e2e8f0;
}

.btn-outline:hover {
  background-color: #334155;
  border-color: #64748b;
  color: #ffffff;
}

.btn-light {
  background-color: #f1f5f9;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-light:hover {
  background-color: #e2e8f0;
}

.btn-danger-outline {
  background-color: transparent;
  border-color: #fca5a5;
  color: var(--danger);
}

.btn-danger-outline:hover {
  background-color: var(--danger-light);
  border-color: var(--danger);
}

.btn-danger-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
  background-color: var(--danger-light);
  color: var(--danger);
  border: 1px solid #fecaca;
  border-radius: var(--radius-sm);
}

.btn-danger-sm:hover {
  background-color: var(--danger);
  color: #ffffff;
}

.btn-add {
  width: 100%;
  padding: 0.6rem;
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px dashed var(--primary-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 0.75rem;
}

.btn-add:hover {
  background-color: #dbeafe;
  border-color: var(--primary);
}

.btn-add-bullet {
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  background-color: #f8fafc;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.4rem;
}

.btn-add-bullet:hover {
  color: var(--primary);
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
}

/* Status indicator badge */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  padding: 0.3rem 0.65rem;
  background-color: #334155;
  border-radius: var(--radius-full);
  color: #94a3b8;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
}

.status-dot.unsaved {
  background-color: #f59e0b;
}

/* ==========================================================================
   MAIN LAYOUT (2 COLUMNS)
   ========================================================================== */

.app-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: calc(100vh - 61px);
  overflow: hidden;
}

/* ==========================================================================
   LEFT PANE: FORM EDITOR (CUỘN ĐỘC LẬP TẤT CẢ CÁC MỤC KỸ NĂNG, HỌC VẤN...)
   ========================================================================== */

.editor-pane {
  background-color: #f8fafc;
  border-right: 1px solid var(--border-color);
  padding: 1.75rem 2rem 6rem 2rem;
  display: block;
  height: 100%;
  overflow-y: scroll;
  scroll-behavior: smooth;
}

.editor-section {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.75rem;
  overflow: visible;
  transition: var(--transition);
}

.editor-section:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.section-header {
  padding: 1.1rem 1.25rem;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-dark);
}

.section-title-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.section-body {
  padding: 1.25rem;
  display: block !important;
}

/* Form Controls */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.form-grid.full {
  grid-template-columns: 1fr;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group.col-span-2 {
  grid-column: span 2;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: #475569;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.form-control {
  width: 100%;
  font-family: inherit;
  font-size: 0.875rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-input);
  color: var(--text-main);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 90px;
  line-height: 1.6;
}

/* Avatar Upload Field */
.avatar-upload-box {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.75rem;
  background: var(--bg-input);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.avatar-preview-wrapper {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--primary);
  flex-shrink: 0;
  background-color: #cbd5e1;
}

.avatar-preview-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% 15%;
}

.avatar-actions {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}

.file-input-wrapper {
  position: relative;
  overflow: hidden;
  display: inline-block;
}

.file-input-wrapper input[type="file"] {
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.file-hint {
  font-size: 0.725rem;
  color: var(--text-muted);
}

/* Dynamic Item Cards (Skills, Education, Experience) */
.dynamic-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.item-card {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.item-card:hover {
  border-color: #cbd5e1;
}

.item-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #f1f5f9;
}

.item-card-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--navy-dark);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.item-card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background-color: #e2e8f0;
  color: #475569;
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 700;
}

/* Bullet points list within experience item */
.bullet-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.bullet-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.bullet-item input {
  flex: 1;
}

.btn-remove-bullet {
  background: transparent;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.btn-remove-bullet:hover {
  color: var(--danger);
  background-color: var(--danger-light);
}

/* Skill dynamic item */
.skill-item-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ==========================================================================
   RIGHT PANE: LIVE PREVIEW (CỐ ĐỊNH HOÀN TOÀN - KHÔNG CÓ SCROLLBAR)
   ========================================================================== */

.preview-pane {
  background-color: #0f172a;
  overflow: hidden !important;
  padding: 0.65rem 1rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  height: 100%;
  box-sizing: border-box;
  position: relative;
}

.preview-stage {
  flex: 1;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.preview-paper-wrapper {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  border-radius: 4px;
  background: #ffffff;
  transform-origin: top center;
  transition: transform 0.1s ease-out;
  flex-shrink: 0;
}

/* Custom modern scrollbars */
.editor-pane::-webkit-scrollbar {
  width: 10px;
}

.editor-pane::-webkit-scrollbar-track {
  background: #e2e8f0;
}

.editor-pane::-webkit-scrollbar-thumb {
  background: #94a3b8;
  border-radius: 5px;
}

.editor-pane::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}

.preview-toolbar {
  flex-shrink: 0;
  margin-bottom: 0.75rem;
  background: rgba(30, 41, 59, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.4rem 1.25rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 100;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.preview-scale-info {
  color: #f1f5f9;
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ==========================================================================
   TOAST NOTIFICATION
   ========================================================================== */

.toast-container {
  position: fixed;
  top: 75px;
  right: 25px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 400px;
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  border-left: 4px solid var(--primary);
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.toast-success {
  border-left-color: var(--success);
}
.toast.toast-success i {
  color: var(--success);
}

.toast.toast-error {
  border-left-color: var(--danger);
}
.toast.toast-error i {
  color: var(--danger);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ==========================================================================
   MODAL DIALOG
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 460px;
  padding: 1.75rem;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

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

.modal-header-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fee2e2;
  color: #ef4444;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy-dark);
}

.modal-body {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* ==========================================================================
   RESPONSIVE DESIGN & MOBILE VIEW TOGGLE
   ========================================================================== */

.view-tabs-mobile {
  display: none;
}

@media (max-width: 1024px) {
  .app-container {
    grid-template-columns: 1fr;
    height: calc(100vh - 110px);
  }

  .view-tabs-mobile {
    display: flex;
    background: #0f172a;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
    border-top: 1px solid #334155;
  }

  .view-tab-btn {
    flex: 1;
    padding: 0.5rem;
    border: none;
    background: #1e293b;
    color: #94a3b8;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
  }

  .view-tab-btn.active {
    background: var(--primary);
    color: #ffffff;
  }

  .editor-pane.hide-mobile,
  .preview-pane.hide-mobile {
    display: none;
  }

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

  .form-group.col-span-2 {
    grid-column: span 1;
  }
}