/**
 * PetEmergency Contact - Styles
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 */

/* ========== CSS Variables ========== */
:root {
    /* Color Palette - Light (default) */
    --color-bg-primary: #F5F5DC;
    --color-bg-secondary: #F5DEB3;
    --color-bg-card: #FFFFFF;
    --color-primary: #CD853F;
    --color-primary-dark: #8B4513;
    --color-secondary: #DEB887;
    --color-accent: #D2B48C;
    --color-text-primary: #2C2C2C;
    --color-text-secondary: #5A5A5A;
    --color-text-light: #8B8B8B;
    --color-border: #E0E0E0;
    --color-success: #4CAF50;
    --color-danger: #F44336;
    --color-warning: #FF9800;
    --color-critical: #D32F2F;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    
    /* Layout */
    --header-height: 72px;
    --border-radius: 12px;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Dark Mode (explicit toggle) */
:root[data-theme="dark"] {
    --color-bg-primary: #1A1A1A;
    --color-bg-secondary: #2C2C2C;
    --color-bg-card: #333333;
    --color-primary: #CD853F;
    --color-primary-dark: #E6A46B;
    --color-secondary: #5A4232;
    --color-accent: #8B6B4E;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #CCCCCC;
    --color-text-light: #999999;
    --color-border: #444444;
    --color-success: #6DD36D;
    --color-danger: #FF6B6B;
    --color-warning: #FFB74D;
    --color-critical: #FF6B6B;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
    --box-shadow-hover: 0 4px 18px rgba(0, 0, 0, 0.55);
}

/* ========== Reset & Base ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== Header ========== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: var(--box-shadow);
    z-index: 100;
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

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

.app-logo {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.12);
    padding: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    object-fit: contain;
}

.app-title-wrapper {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.app-title-text {
    font-size: var(--font-size-lg);
    font-weight: 800;
    color: white;
}

.app-subtitle {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.85);
    font-weight: 600;
}

.menu-toggle {
    display: none;
}

.btn-icon.menu-toggle {
    display: none;
}

.mobile-menu {
    position: absolute;
    top: calc(var(--header-height) - 8px);
    right: var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    box-shadow: var(--box-shadow-hover);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
    min-width: 220px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    z-index: 150;
}

.mobile-menu[hidden] {
    display: none;
}

.menu-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--color-text-primary);
    font-weight: 700;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-fast);
}

.menu-item i {
    color: var(--color-primary);
}

.menu-item:hover,
.menu-item:focus-visible {
    background: var(--color-bg-secondary);
    outline: none;
}

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

.header-back {
    background: rgba(255, 255, 255, 0.18);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.header-back:hover {
    background: rgba(255, 255, 255, 0.28);
    color: white;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border: none;
    background:var(--color-primary-dark);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: var(--font-size-lg);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

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

/* ========== Main Content ========== */
.app-main {
    margin-top: var(--header-height);
    padding: var(--spacing-md);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    min-height: calc(100vh - var(--header-height));
}

.view-section {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.view-section.active {
    display: block;
}

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

/* ========== Search Bar ========== */
.home-panel {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.search-container {
    margin: 0;
}

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

.search-box i {
    color: var(--color-text-light);
    font-size: var(--font-size-lg);
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: var(--font-size-md);
    background: transparent;
    color: var(--color-text-primary);
}

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

/* ========== Category Filter ========== */
.category-filter {
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    padding: var(--spacing-xs) var(--spacing-lg) var(--spacing-sm);
    margin: 0 0 var(--spacing-lg);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--spacing-lg);
    position: relative;
}

.category-filter::-webkit-scrollbar {
    display: none;
}

.category-filter::before,
.category-filter::after {
    content: '';
    flex: 0 0 var(--spacing-md);
}

.category-btn {
    flex: 0 0 auto;
    scroll-snap-align: start;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-border);
    background: var(--color-bg-card);
    color: var(--color-text-secondary);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    white-space: nowrap;
}

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

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

@media (max-width: 540px) {
    .category-btn {
        min-width: 120px;
    }

    .home-panel {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .category-filter {
        overflow: visible;
        flex-wrap: wrap;
        scroll-snap-type: none;
        scroll-padding-inline: 0;
        margin: 0 0 var(--spacing-lg);
        padding: var(--spacing-xs) 0 var(--spacing-sm);
        gap: var(--spacing-sm);
    }

    .category-filter::before,
    .category-filter::after {
        display: none;
    }

    .category-btn {
        min-width: 0;
        flex: 1 1 calc(50% - var(--spacing-sm));
        white-space: nowrap;
        justify-content: center;
    }
}

@media (min-width: 769px) {
    .category-filter {
        overflow: visible;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        margin: 0 0 var(--spacing-lg);
        padding: 0;
        scroll-snap-type: none;
        scroll-padding-inline: 0;
    }

    .category-btn {
        flex: 1 1 160px;
        text-align: center;
        justify-content: center;
    }

    .home-panel {
        padding: var(--spacing-xl);
        flex-direction: row;
        align-items: flex-start;
        gap: var(--spacing-lg);
    }

    .search-container {
        flex: 1;
    }

    .category-filter {
        flex: 2;
    }
}

/* ========== Contacts List ========== */
.contacts-list {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.contact-card {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--box-shadow);
    transition: all var(--transition-normal);
    position: relative;
    border: 2px solid transparent;
}

.contact-card.critical {
    border-color: var(--color-critical);
    box-shadow: 0 0 0 4px rgba(211, 47, 47, 0.1);
}

.contact-card:hover {
    box-shadow: var(--box-shadow-hover);
    transform: translateY(-4px);
}

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

.contact-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.contact-category {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-secondary);
    color: var(--color-primary-dark);
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

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

.contact-actions button {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
}

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

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

.contact-actions button:hover {
    transform: scale(1.15);
}

.contact-info {
    margin: var(--spacing-md) 0;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.contact-info-item i {
    width: 20px;
    color: var(--color-primary);
}

.contact-quick-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.btn-call,
.btn-whatsapp {
    flex: 1;
    padding: var(--spacing-sm);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

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

.btn-whatsapp {
    background: #25D366;
    color: white;
}

.btn-call:hover,
.btn-whatsapp:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
}

.empty-state i {
    font-size: 4rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.empty-state h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.empty-state p {
    margin-bottom: var(--spacing-lg);
}

/* ========== Form ========== */
.form-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

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

.contact-form {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow);
}

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

.form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-group label i {
    color: var(--color-primary);
}

.required {
    color: var(--color-danger);
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(205, 133, 63, 0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--color-danger);
}

.error-message {
    display: block;
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkbox-custom {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: white;
    font-size: var(--font-size-sm);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.btn-primary,
.btn-secondary,
.btn-danger {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
    min-height: 48px;
}

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

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

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

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

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

.btn-danger:hover {
    background: #D32F2F;
}

/* ========== FAQ Section ========== */
.section-header {
    margin-bottom: var(--spacing-lg);
}

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

.faq-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    border: none;
    background: transparent;
    text-align: left;
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--color-bg-secondary);
}

.faq-icon {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.8;
    animation: slideDown var(--transition-normal);
}

.faq-answer[hidden] {
    display: none;
}

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

/* ========== Toast Notification ========== */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-text-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-hover);
    z-index: 1000;
    opacity: 0;
    transition: all var(--transition-normal);
    max-width: 90%;
    text-align: center;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

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

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

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

/* ========== Modal ========== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
    animation: fadeIn var(--transition-normal);
}

.modal-content {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 100%;
    box-shadow: var(--box-shadow-hover);
    animation: slideUp var(--transition-normal);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-content h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.modal-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* ========== Footer ========== */
.app-footer {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.app-footer p {
    margin: var(--spacing-xs) 0;
}

.app-footer a {
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: none;
    transition: color var(--transition-fast), text-decoration var(--transition-fast);
}

.app-footer a:hover,
.app-footer a:focus-visible {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.b20-link {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.b20-link:hover {
    text-decoration: underline;
    transform: scale(1.05);
    display: inline-block;
}

/* ========== Screen Reader Only ========== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
    .contacts-list {
        grid-template-columns: 1fr;
    }
    
    .category-filter {
        justify-content: flex-start;
    }
    
    .form-actions {
        flex-direction: column;
    }

    .header-actions {
        display: none;
    }

    .menu-toggle,
    .btn-icon.menu-toggle {
        display: flex;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .contacts-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1025px) {
    .app-header,
    .bottom-nav {
        padding: 0 var(--spacing-xl);
    }
    
    .contacts-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========== Touch Improvements ========== */
@media (hover: none) and (pointer: coarse) {
    .btn-icon,
    .nav-item,
    .category-btn,
    .contact-actions button {
        min-width: 44px;
        min-height: 44px;
    }
}

/* ========== Print Styles ========== */
@media print {
    .app-header,
    .search-container,
    .category-filter,
    .contact-actions,
    .contact-quick-actions {
        display: none;
    }
    
    .app-main {
        margin-top: 0;
        padding-bottom: 0;
    }
    
    .contact-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}