/* ============================================================================
   RIBBON/TOOLBAR ESTILO MICROSOFT OFFICE
   ============================================================================ */

/* Contenedor principal del ribbon */
.ribbon-container {
    display: flex;
    flex-direction: column;
    background: #f3f3f3;
    border-bottom: 1px solid #d4d4d4;
    user-select: none;
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Barra de título superior */
.title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: white;
    border-bottom: 1px solid #e1e1e1;
    height: 42px;
}

.app-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.95em;
    color: #202020;
}

.app-title .material-symbols-outlined {
    font-size: 20px;
    color: var(--primary);
}

.title-bar-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.theme-dropdown {
    padding: 4px 8px;
    border: 1px solid #d1d1d1;
    border-radius: 3px;
    background: white;
    font-size: 0.85em;
    cursor: pointer;
    outline: none;
}

.theme-dropdown:hover {
    border-color: #adadad;
}

.icon-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.icon-btn:hover {
    background: #e5e5e5;
    transform: scale(1.1);
}

.icon-btn:active {
    transform: scale(0.95);
}

.icon-btn .material-symbols-outlined {
    font-size: 20px;
}

/* Pestañas del ribbon */
.ribbon-tabs {
    display: flex;
    background: #f3f3f3;
    padding: 0 8px;
    gap: 2px;
}

.ribbon-tab {
    padding: 8px 20px;
    background: transparent;
    border: none;
    font-size: 0.9em;
    font-weight: 500;
    color: #444;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.ribbon-tab::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}

.ribbon-tab:hover {
    background: #e8e8e8;
    color: #202020;
    transform: translateY(-2px);
}

.ribbon-tab:hover::after {
    width: 80%;
}

.ribbon-tab.active {
    background: white;
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.ribbon-tab.active::after {
    width: 100%;
}

/* Contenido del ribbon */
.ribbon-content {
    background: white;
    padding: 8px 12px;
    min-height: 90px;
}

.ribbon-panel {
    display: none;
    flex-wrap: wrap;
    gap: 8px;
    align-items: flex-start;
}

.ribbon-panel.active {
    display: flex;
}

/* Grupos del ribbon */
.ribbon-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.group-label {
    font-size: 0.7em;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    font-weight: 600;
    padding: 0 4px;
}

.ribbon-buttons {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.ribbon-buttons-vertical {
    flex-direction: column;
}

/* Botones del ribbon */
.ribbon-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    background: #fafafa;
    border: 1px solid #e0e0e0;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.75em;
    color: #333;
    min-width: 70px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.ribbon-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(0, 120, 212, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s;
}

.ribbon-btn:hover::before {
    width: 300px;
    height: 300px;
}

.ribbon-btn:hover {
    background: #e5f3ff;
    border-color: #0078d4;
    color: #0078d4;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 120, 212, 0.2);
}

.ribbon-btn:active {
    background: #cce4f7;
    transform: translateY(0) scale(0.97);
    box-shadow: 0 2px 4px rgba(0, 120, 212, 0.15);
}

.ribbon-btn .material-symbols-outlined {
    font-size: 24px;
}

.ribbon-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.ribbon-btn:disabled:hover {
    background: #fafafa;
    border-color: #e0e0e0;
    color: #333;
}

/* Botones especiales */
.btn-special {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: #667eea;
}

.btn-special:hover {
    background: linear-gradient(135deg, #5568d3 0%, #63408a 100%);
    border-color: #5568d3;
    color: white;
}

.btn-action {
    background: var(--secondary);
    color: white;
    border-color: var(--secondary);
    font-weight: 600;
}

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

/* Separador vertical */
.ribbon-separator {
    width: 1px;
    background: #d4d4d4;
    margin: 0 8px;
    align-self: stretch;
}

/* Select del ribbon */
.ribbon-select {
    padding: 8px 12px;
    border: 1px solid #d1d1d1;
    border-radius: 3px;
    background: white;
    font-size: 0.85em;
    cursor: pointer;
    min-width: 150px;
}

.ribbon-select:hover {
    border-color: #adadad;
}

.ribbon-select:focus {
    outline: none;
    border-color: #0078d4;
}

/* Información en el ribbon */
.ribbon-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 4px 8px;
    font-size: 0.75em;
    color: #666;
}

.info-line {
    white-space: nowrap;
}

/* ============================================================================
   MODO OSCURO - RIBBON
   ============================================================================ */

body.dark-mode .ribbon-container {
    background: #000000;
    border-bottom-color: #1a1a1a;
}

body.dark-mode .title-bar {
    background: #000000;
    border-bottom-color: #1a1a1a;
}

body.dark-mode .app-title {
    color: #fff;
}

body.dark-mode .theme-dropdown {
    background: #1a1a1a;
    border-color: #2a2a2a;
    color: #fff;
}

body.dark-mode .theme-dropdown:hover {
    border-color: #3a3a3a;
}

body.dark-mode .theme-dropdown option {
    background: #1a1a1a;
}

body.dark-mode .icon-btn {
    color: #fff;
}

body.dark-mode .icon-btn:hover {
    background: #1a1a1a;
}

body.dark-mode .ribbon-tabs {
    background: #000000;
}

body.dark-mode .ribbon-tab {
    color: #b4b4b4;
}

body.dark-mode .ribbon-tab:hover {
    background: #1a1a1a;
    color: #fff;
}

body.dark-mode .ribbon-tab.active {
    background: #0a0a0a;
    color: var(--primary-dark, var(--primary));
    border-bottom-color: var(--primary-dark, var(--primary));
}

body.dark-mode .ribbon-content {
    background: #0a0a0a;
}

body.dark-mode .group-label {
    color: #8b949e;
}

body.dark-mode .ribbon-btn {
    background: #1a1a1a;
    border-color: #2a2a2a;
    color: #e4e4e4;
}

body.dark-mode .ribbon-btn:hover {
    background: #2a2a2a;
    border-color: var(--syntax-function);
    color: var(--syntax-function);
}

body.dark-mode .ribbon-btn:active {
    background: #151515;
}

body.dark-mode .ribbon-btn:disabled {
    opacity: 0.3;
}

body.dark-mode .ribbon-btn:disabled:hover {
    background: #3e3e3e;
    border-color: #505050;
    color: #e4e4e4;
}

body.dark-mode .btn-special {
    background: linear-gradient(135deg, #ff79c6 0%, #bd93f9 100%);
    border-color: #ff79c6;
}

body.dark-mode .btn-special:hover {
    background: linear-gradient(135deg, #ff6bb8 0%, #a67ee8 100%);
    border-color: #ff6bb8;
}

body.dark-mode .btn-action {
    background: var(--syntax-function);
    color: #0d1117;
    border-color: var(--syntax-function);
}

body.dark-mode .btn-action:hover {
    background: var(--syntax-string);
    border-color: var(--syntax-string);
    color: #0d1117;
}

body.dark-mode .ribbon-separator {
    background: #404040;
}

body.dark-mode .ribbon-select {
    background: #1a1a1a;
    border-color: #2a2a2a;
    color: #e4e4e4;
}

body.dark-mode .ribbon-select:hover {
    border-color: #3a3a3a;
}

body.dark-mode .ribbon-select:focus {
    border-color: var(--syntax-function);
}

body.dark-mode .ribbon-select option {
    background: #1a1a1a;
}

body.dark-mode .ribbon-info {
    color: #8b949e;
}

/* ============================================================================
   LAYOUT AJUSTADO
   ============================================================================ */

body {
    flex-direction: column;
}

.workspace {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* Ajustar workspace para que funcione con ribbon superior */
#editor-container,
#preview-container {
    height: calc(100vh - 160px); /* Restar altura del ribbon */
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 1024px) {
    .ribbon-btn {
        min-width: 60px;
        padding: 6px 8px;
    }
    
    .ribbon-btn span:not(.material-symbols-outlined) {
        font-size: 0.7em;
    }
    
    .group-label {
        font-size: 0.65em;
    }
}

@media (max-width: 768px) {
    .ribbon-content {
        overflow-x: auto;
    }
    
    .ribbon-panel {
        flex-wrap: nowrap;
        min-width: max-content;
    }
    
    .app-title span:last-child {
        display: none;
    }
    
    #editor-container,
    #preview-container {
        height: calc(100vh - 140px);
    }
}

/* Ocultar el antiguo toolbox */
.toolbox {
    display: none !important;
}

/* ============================================================================
   IMPRESIÓN - OCULTAR RIBBON
   ============================================================================ */

@media print {
    .ribbon-container {
        display: none !important;
    }
    
    #editor-container,
    #preview-container {
        height: auto !important;
    }
}

/* ============================================================================
   DIVISOR REDIMENSIONABLE (RESIZER)
   ============================================================================ */

.resizer {
    width: 5px;
    background: #d4d4d4;
    cursor: col-resize;
    position: relative;
    transition: background 0.2s;
    flex-shrink: 0;
}

.resizer:hover {
    background: var(--secondary);
}

.resizer::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 3px;
    height: 40px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    pointer-events: none;
}

.resizer.resizing {
    background: var(--primary);
}

/* Modo oscuro */
body.dark-mode .resizer {
    background: #2a2a2a;
}

body.dark-mode .resizer:hover {
    background: var(--syntax-function);
}

body.dark-mode .resizer::after {
    background: rgba(255, 255, 255, 0.1);
}

body.dark-mode .resizer.resizing {
    background: var(--syntax-function);
}

/* Ajustar workspace para soportar resizer */
.workspace {
    display: flex;
    flex-direction: row;
}

#editor-container {
    flex: 1;
    min-width: 300px;
    width: 50%;
}

#preview-container {
    flex: 1;
    min-width: 300px;
    width: 50%;
}