/* ============================================
   BIBLIOTECA DE MÉTODOS - SISTEMA DE DESIGN
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Light Theme */
    --primary: #1e3a5f;
    --primary-light: #2d5a8a;
    --primary-dark: #0f1f33;
    --accent: #00b894;
    --accent-light: #55efc4;
    --accent-dark: #00816a;

    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-hover: #e2e8f0;

    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;

    --border: #e2e8f0;
    --border-strong: #cbd5e1;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Category Colors */
    --cat-fisico-quimico: #6366f1;
    --cat-metais: #8b5cf6;
    --cat-toxicidade: #ef4444;
    --cat-microbiologia: #10b981;
    --cat-organicos: #f59e0b;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

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

    /* Layout */
    --header-height: 64px;
    --sidebar-width: 280px;
}

/* Dark Theme */
[data-theme="dark"] {
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #1d4ed8;

    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-hover: #475569;

    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --text-inverse: #0f172a;

    --border: #334155;
    --border-strong: #475569;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--text-inverse);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-lg);
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

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

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

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

.logo-icon {
    font-size: var(--font-size-2xl);
}

.logo h1 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Menu Toggle (Mobile) */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-inverse);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* Icon Buttons */
.btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-lg);
    transition: var(--transition-fast);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

/* Theme Toggle */
#themeToggle .icon-moon {
    display: none;
}

[data-theme="dark"] #themeToggle .icon-sun {
    display: none;
}

[data-theme="dark"] #themeToggle .icon-moon {
    display: block;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
    display: flex;
    min-height: calc(100vh - var(--header-height));
    margin-top: var(--header-height);
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base);
    z-index: 100;
}

/* Search */
.search-container {
    padding: var(--space-lg);
    position: relative;
}

.search-input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    padding-left: 2.5rem;
    padding-right: 2.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.15);
}

.search-icon {
    position: absolute;
    left: calc(var(--space-lg) + var(--space-sm));
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
    opacity: 0.5;
}

/* Categories */
.categories {
    flex: 1;
    padding: 0 var(--space-md);
    overflow-y: auto;
}

.categories h3 {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: var(--space-sm) var(--space-sm);
    margin-bottom: var(--space-xs);
}

.category-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: left;
    margin-bottom: var(--space-xs);
}

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

.category-btn.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--text-inverse);
}

.category-icon {
    font-size: var(--font-size-base);
}

.category-count {
    margin-left: auto;
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.category-btn.active .category-count {
    background: rgba(255, 255, 255, 0.2);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--border);
}

.sidebar-credits {
    margin-top: var(--space-md);
    text-align: center;
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border);
}

.sidebar-credits small {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    display: block;
}

.sidebar-credits strong {
    color: var(--text-secondary);
    font-weight: 600;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: var(--space-xl);
    min-height: calc(100vh - var(--header-height));
}

.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
}

.content-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
}

/* View Options */
.view-options {
    display: flex;
    gap: var(--space-xs);
    background: var(--bg-tertiary);
    padding: var(--space-xs);
    border-radius: var(--radius-md);
}

.view-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.view-btn.active {
    background: var(--bg-secondary);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* ============================================
   METHODS GRID
   ============================================ */
.methods-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.methods-container.list-view {
    grid-template-columns: 1fr;
}

/* Method Card */
.method-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.method-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--cat-fisico-quimico);
}

.method-card[data-category="fisico-quimico"]::before {
    background: var(--cat-fisico-quimico);
}

.method-card[data-category="metais"]::before {
    background: var(--cat-metais);
}

.method-card[data-category="toxicidade"]::before {
    background: var(--cat-toxicidade);
}

.method-card[data-category="microbiologia"]::before {
    background: var(--cat-microbiologia);
}

.method-card[data-category="organicos"]::before {
    background: var(--cat-organicos);
}

.method-card[data-category="solo"]::before {
    background: #84cc16;
}

.method-card[data-category="submetodos"]::before {
    background: #a855f7;
}

.method-card[data-category="edicao24"]::before {
    background: #22c55e;
}

.method-card[data-category="residuos"]::before {
    background: #f97316;
}

.method-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

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

.method-card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.method-card-code {
    background: var(--bg-tertiary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.method-card-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.method-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
}

.method-card-source {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.method-card-badges {
    display: flex;
    gap: var(--space-xs);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge-pdf {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

/* List View Styles */
.methods-container.list-view .method-card {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
}

.methods-container.list-view .method-card::before {
    width: 4px;
    height: 100%;
    top: 0;
    right: auto;
}

.methods-container.list-view .method-card-header {
    flex: 0 0 300px;
    margin-bottom: 0;
}

.methods-container.list-view .method-card-description {
    flex: 1;
    margin-bottom: 0;
    -webkit-line-clamp: 1;
    line-clamp: 1;
}

.methods-container.list-view .method-card-footer {
    flex: 0 0 auto;
    border-top: none;
    padding-top: 0;
    gap: var(--space-lg);
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.empty-state p {
    color: var(--text-muted);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--text-inverse);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-full {
    width: 100%;
}

.btn-link {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    text-decoration: underline;
    font-size: inherit;
    font-family: inherit;
}

/* ============================================
   MODALS
   ============================================ */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    animation: fadeIn var(--transition-fast);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    animation: slideUp var(--transition-base);
}

.modal-large {
    max-width: 800px;
}

.modal-fullscreen {
    max-width: 95vw;
    max-height: 95vh;
}

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

.modal-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.modal-body {
    flex: 1;
    padding: var(--space-lg);
    overflow-y: auto;
}

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

/* ============================================
   FORMS
   ============================================ */
.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

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

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.15);
}

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

/* File Upload */
.file-upload {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    transition: var(--transition-fast);
}

.file-upload.drag-over {
    border-color: var(--primary);
    background: rgba(30, 58, 95, 0.05);
}

.file-upload-content {
    color: var(--text-muted);
}

.file-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    display: block;
}

.file-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.file-name {
    color: var(--text-primary);
    font-weight: 500;
}

.btn-remove {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--error);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: var(--font-size-xs);
}

/* ============================================
   METHOD DETAIL VIEW
   ============================================ */
.method-detail {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.method-detail-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.method-detail-category {
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-inverse);
}

.method-detail-category.fisico-quimico {
    background: var(--cat-fisico-quimico);
}

.method-detail-category.metais {
    background: var(--cat-metais);
}

.method-detail-category.toxicidade {
    background: var(--cat-toxicidade);
}

.method-detail-category.microbiologia {
    background: var(--cat-microbiologia);
}

.method-detail-category.organicos {
    background: var(--cat-organicos);
}

.method-detail-category.solo {
    background: #84cc16;
}

.method-detail-category.submetodos {
    background: #a855f7;
}

.method-detail-category.edicao24 {
    background: #22c55e;
}

.method-detail-category.residuos {
    background: #f97316;
}

.method-detail-section {
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border);
}

.method-detail-section:last-child {
    border-bottom: none;
}

.method-detail-section h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.method-detail-section p,
.method-detail-section ul {
    color: var(--text-secondary);
    line-height: 1.7;
}

.method-detail-section ul {
    padding-left: var(--space-lg);
}

.method-detail-section li {
    margin-bottom: var(--space-xs);
}

.method-detail-section a {
    color: var(--primary);
    text-decoration: none;
}

.method-detail-section a:hover {
    text-decoration: underline;
}

/* PDF Viewer */
.pdf-viewer-container {
    padding: 0;
    display: flex;
    flex-direction: column;
}

#pdfViewer {
    flex: 1;
    width: 100%;
    min-height: 70vh;
    border: none;
}

/* ============================================
   TOASTS
   ============================================ */
.toast-container {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    z-index: 3000;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: slideInRight var(--transition-base);
    border-left: 4px solid var(--info);
}

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

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

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

.toast-icon {
    font-size: var(--font-size-lg);
}

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

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: var(--font-size-lg);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .logo h1 {
        font-size: var(--font-size-base);
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding: var(--space-md);
    }

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

    .methods-container {
        grid-template-columns: 1fr;
    }

    .modal-content {
        max-height: 100vh;
        border-radius: 0;
    }

    .modal {
        padding: 0;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0 var(--space-md);
    }

    .header-right {
        gap: var(--space-xs);
    }

    .btn-icon {
        width: 36px;
        height: 36px;
    }

    .method-card {
        padding: var(--space-md);
    }
}

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

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

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

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

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

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

.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* ============================================
   AUTHENTICATION MODAL
   ============================================ */
.modal-small {
    max-width: 420px;
}

.auth-container {
    text-align: center;
    padding: var(--space-lg) 0;
}

.auth-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.auth-message {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.auth-input {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-lg);
    text-align: center;
    letter-spacing: 0.1em;
    transition: var(--transition-fast);
}

.auth-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(30, 58, 95, 0.15);
}

.auth-input.error {
    border-color: var(--error);
    animation: shake 0.5s ease;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-5px);
    }

    20%,
    40%,
    60%,
    80% {
        transform: translateX(5px);
    }
}

.auth-error {
    margin-top: var(--space-md);
    color: var(--error);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ============================================
   FAVORITE STAR
   ============================================ */
.fav-star {
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: color 0.2s, transform 0.2s;
    position: absolute;
    top: 12px;
    right: 12px;
}

.fav-star:hover {
    color: #f59e0b;
    transform: scale(1.2);
}

.fav-star.active {
    color: #f59e0b;
}

/* Adjust method card for star positioning */
.method-card {
    position: relative;
}

.method-card-header {
    padding-right: 30px;
}

/* ============================================
   STAT CARDS (Dashboard)
   ============================================ */
.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
}

.stat-card h3 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-xs);
}

.stat-card p {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================
   METHOD NOTE
   ============================================ */
.method-note {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    padding: 8px;
    width: 100%;
    resize: vertical;
}

.method-note:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

/* ============================================
   ADVANCED SEARCH
   ============================================ */
.search-container {
    position: relative;
}

.btn-advanced-search {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.5;
    padding: 4px;
    z-index: 1;
}

.btn-advanced-search:hover {
    opacity: 1;
}

.advanced-search {
    padding: 0 var(--space-lg) var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.advanced-search h4 {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-sm);
}

.adv-filters {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.adv-filter-group label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 4px;
}

.adv-checks {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.adv-checks label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-size-xs);
    cursor: pointer;
}

.adv-checks input[type="checkbox"] {
    width: 14px;
    height: 14px;
    cursor: pointer;
}

.adv-filter-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.adv-filter-actions .btn {
    font-size: var(--font-size-xs);
    padding: 4px 12px;
}

#advSourceFilter,
#advTypeFilter {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: var(--font-size-xs);
}

/* ============================================
   CHECKLIST
   ============================================ */
.checklist-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
}

.checklist-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checklist-item span {
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.checklist-item:has(input:checked) span {
    text-decoration: line-through;
    opacity: 0.6;
}

.method-detail-section {
    margin-bottom: var(--space-md);
}

.method-detail-section h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.method-detail-section p,
.method-detail-section ul {
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--text-secondary);
}

.method-detail-section ul {
    padding-left: var(--space-lg);
}