/* ============================================
   FORMULARIO NACIONAL DE MEDICAMENTOS - CUBA
   Sistema de Diseño Médico v1.0
   Dark Mode First - Optimizado para uso clínico
   ============================================ */

/* ===== VARIABLES CSS ===== */
:root {
    /* Colores Dark Mode (por defecto) */
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f2e;
    --bg-tertiary: #252b3b;
    --bg-elevated: #2d3548;
    
    --text-primary: #e3e8ef;
    --text-secondary: #9ba3b4;
    --text-tertiary: #6b7280;
    --text-inverse: #0f1419;
    
    --border-color: #3d4556;
    --border-color-light: #2d3548;
    
    --accent-primary: #4a9eff;
    --accent-primary-dark: #3182ce;
    --accent-primary-light: #63b3ed;
    
    --success: #48bb78;
    --success-dark: #38a169;
    --warning: #ed8936;
    --danger: #f56565;
    --danger-dark: #e53e3e;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    
    /* Espaciado */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Tipografía */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    
    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Light Mode Override */
:root:not(.dark-mode) {
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --bg-elevated: #ffffff;
    
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --text-inverse: #ffffff;
    
    --border-color: #e2e8f0;
    --border-color-light: #edf2f7;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* ===== RESET Y BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

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

/* ===== HEADER ===== */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

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

.app-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.icon-medical {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent-primary) 0%, #6d5bd0 100%);
    font-size: 19px;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.title-text {
    display: none;
}

.db-badge {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 600;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.btn-icon .icon {
    display: block;
}

.btn-icon:hover {
    background: var(--bg-elevated);
    color: var(--accent-primary);
}

.btn-icon:active {
    transform: scale(0.92);
}

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

/* ===== MAIN CONTAINER ===== */
.app-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: calc(100vh - 80px);
}

/* ===== VIEWS ===== */
.view {
    animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== SEARCH SECTION ===== */
.search-section {
    margin-bottom: var(--spacing-lg);
}

.search-container {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 14px 50px 14px 50px;
    font-size: var(--font-size-base);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-clear {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition-fast);
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-clear.visible {
    opacity: 1;
}

.search-clear:hover {
    background: var(--danger);
    color: white;
}

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

.no-match-hint[hidden] {
    display: none;
}

.no-match-hint {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    padding: 10px var(--spacing-md);
    border-radius: 10px;
    background: rgba(237, 137, 54, 0.1);
    border: 1px solid rgba(237, 137, 54, 0.3);
    color: var(--warning);
    font-size: var(--font-size-sm);
}

.no-match-hint svg {
    flex-shrink: 0;
}

.no-match-hint span {
    color: var(--text-secondary);
}

.no-match-hint button {
    background: none;
    border: none;
    padding: 0;
    color: var(--warning);
    font-weight: 700;
    font-size: inherit;
    cursor: pointer;
    text-decoration: underline;
}

.filter-select {
    width: 100%;
    min-width: 0;
    padding: 10px var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* ===== RESULTS SECTION ===== */
.results-section {
    margin-top: var(--spacing-lg);
}

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

.results-header span {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 600;
}

.btn-text {
    background: none;
    border: none;
    color: var(--accent-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

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

/* ===== MEDICAMENTOS LIST ===== */
.meds-list {
    display: grid;
    gap: var(--spacing-md);
}

.med-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.med-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--accent-primary);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.med-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.med-card:hover::before {
    opacity: 1;
}

.med-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.med-card-title {
    flex: 1;
}

.med-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
    line-height: 1.3;
}

.med-generic {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-style: italic;
}

.btn-fav {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px;
    display: flex;
    transition: all var(--transition-fast);
}

.btn-fav:hover {
    transform: scale(1.2);
    color: var(--warning);
}

.btn-fav.active {
    color: var(--warning);
    animation: favPulse 0.3s ease;
}

@keyframes favPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

.med-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.meta-tag {
    font-size: var(--font-size-xs);
    padding: 4px 10px;
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
}

.meta-tag.categoria {
    background: rgba(74, 158, 255, 0.15);
    color: var(--accent-primary);
}

.meta-tag.presentacion {
    background: rgba(72, 187, 120, 0.15);
    color: var(--success);
}

/* Variedad de color por familia terapéutica (asignado por hash del nombre) */
.meta-tag.cat-blue { background: rgba(74, 158, 255, 0.15); color: #63b3ed; }
.meta-tag.cat-purple { background: rgba(159, 122, 234, 0.15); color: #b794f4; }
.meta-tag.cat-teal { background: rgba(56, 178, 189, 0.15); color: #4fd1c5; }
.meta-tag.cat-pink { background: rgba(237, 100, 166, 0.15); color: #f687b3; }
.meta-tag.cat-green { background: rgba(72, 187, 120, 0.15); color: #68d391; }
.meta-tag.cat-orange { background: rgba(237, 137, 54, 0.15); color: #f6ad55; }

.med-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color-light);
}

.med-indicator {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

.med-arrow {
    color: var(--accent-primary);
    font-size: 18px;
}

/* ===== LOADING STATE ===== */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

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

.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.empty-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ===== DETAIL VIEW ===== */
.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.btn-back {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px var(--spacing-md);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-back:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
}

.detail-content {
    max-width: 800px;
}

.detail-title {
    margin-bottom: var(--spacing-lg);
}

.detail-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.detail-generic {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-style: italic;
}

.detail-section {
    margin-bottom: var(--spacing-xl);
}

.suggest-change-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 1px dashed var(--border-color);
    background: none;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.suggest-change-link:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: var(--bg-secondary);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 8px;
    transition: background var(--transition-fast);
}

.section-header:hover {
    background: var(--bg-tertiary);
}

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

.section-icon {
    font-size: 20px;
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.toggle-icon {
    font-size: 18px;
    color: var(--text-tertiary);
    transition: transform var(--transition-fast);
}

.toggle-icon.expanded {
    transform: rotate(180deg);
}

.section-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-md);
    line-height: 1.8;
    color: var(--text-primary);
}

.section-content.collapsed {
    display: none;
}

.section-content p {
    margin-bottom: var(--spacing-sm);
}

.section-content ul {
    margin-left: var(--spacing-lg);
}

.section-content li {
    margin-bottom: var(--spacing-xs);
}

/* ===== SETTINGS VIEW ===== */
.settings-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.settings-header h2 {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
}

.settings-content {
    max-width: 800px;
}

.settings-section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.section-title.danger {
    color: var(--danger);
}

.settings-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.settings-card.danger-card {
    border-color: var(--danger);
    background: rgba(245, 101, 101, 0.05);
}

.settings-card h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.card-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.card-info {
    margin-bottom: var(--spacing-md);
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color-light);
}

.info-row:last-child {
    border-bottom: none;
}

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

.info-value {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    font-weight: 600;
}

.card-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.setting-info {
    flex: 1;
}

.setting-label {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.setting-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ===== BUTTONS ===== */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px var(--spacing-lg);
    border-radius: 10px;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

.btn:active {
    transform: scale(0.98);
}

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

.btn-primary:hover {
    background: var(--accent-primary-dark);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--bg-elevated);
    border-color: var(--accent-primary);
}

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

.btn-success:hover {
    background: var(--success-dark);
    box-shadow: var(--shadow-md);
}

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

.btn-danger:hover {
    background: var(--danger-dark);
    box-shadow: var(--shadow-md);
}

/* ===== TOGGLE SWITCH ===== */
.toggle-switch {
    position: relative;
    width: 50px;
    height: 28px;
    display: inline-block;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 28px;
    transition: var(--transition-base);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-tertiary);
    border-radius: 50%;
    transition: var(--transition-base);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(22px);
    background-color: white;
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.show {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    z-index: 1001;
    background: var(--bg-primary);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modalSlideIn var(--transition-base);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

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

.modal-header h2 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
}

.btn-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

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

/* ===== FORM ===== */
.form-section {
    margin-bottom: var(--spacing-xl);
}

.form-section h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

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

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

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px var(--spacing-md);
    font-size: var(--font-size-base);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    font-family: var(--font-sans);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

.radio-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 400;
}

.radio-row label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 400;
    margin-bottom: 0;
    cursor: pointer;
    white-space: nowrap;
}

.suggest-form {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

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

/* ===== TOAST ===== */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: toastSlideIn var(--transition-base);
}

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

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

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.info {
    border-left: 4px solid var(--accent-primary);
}

.toast-icon {
    display: flex;
    flex-shrink: 0;
}

.toast.success .toast-icon { color: var(--success); }
.toast.error .toast-icon { color: var(--danger); }
.toast.info .toast-icon { color: var(--accent-primary); }

.toast-message {
    flex: 1;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

/* ===== RESPONSIVE ===== */
@media (min-width: 640px) {
    .title-text {
        display: inline;
    }
    
    .filters-row {
        grid-template-columns: 2fr 1fr;
    }
}

@media (min-width: 768px) {
    .app-main {
        padding: var(--spacing-lg);
    }
    
    .meds-list {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    .meds-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        max-height: 95vh;
    }
    
    .toast-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    .toast {
        min-width: auto;
    }
}

/* ===== UTILITY CLASSES ===== */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ===== PANTALLA DE BIENVENIDA / DESCARGA INICIAL ===== */
.welcome-screen p {
    max-width: 440px;
    margin-left: auto;
    margin-right: auto;
}

.welcome-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.welcome-actions .btn {
    flex: 1 1 220px;
    max-width: 280px;
}

.download-progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    max-width: 320px;
    margin: var(--spacing-lg) auto;
}

.progress-track {
    flex: 1;
    height: 10px;
    border-radius: 6px;
    background: var(--bg-tertiary);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 6px;
    transition: width var(--transition-fast);
}

.progress-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 40px;
    text-align: right;
}

/* ===== AVISO DE ACTUALIZACIÓN DEL FORMULARIO ===== */
.formulario-update-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1500;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md);
    transform: translateY(-100%);
    transition: transform var(--transition-base);
}

.formulario-update-banner.visible {
    transform: translateY(0);
}

.formulario-update-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.formulario-update-icon {
    flex-shrink: 0;
    color: var(--success);
}

.formulario-update-text {
    flex: 1;
    min-width: 200px;
}

.formulario-update-text strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.formulario-update-text p {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.formulario-update-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.formulario-update-actions .btn {
    padding: 10px var(--spacing-md);
    font-size: var(--font-size-sm);
}

@media (max-width: 640px) {
    .formulario-update-content {
        flex-direction: column;
        text-align: center;
    }

    .formulario-update-actions {
        width: 100%;
    }

    .formulario-update-actions .btn {
        flex: 1;
    }
}