/**
 * Guia Primeiros Socorros Rápido - Quick First Aid Guide
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 * Todos os direitos reservados
 */

/* ===========================
   CSS CUSTOM PROPERTIES
   =========================== */
:root {
    /* Color Palette */
    --color-primary: #7868E6;
    --color-primary-light: #B8B5FF;
    --color-primary-dark: #5a4bb8;
    --color-secondary: #E4FBFF;
    --color-accent: #FFB4B4;
    --color-background: #EDEEF7;
    --color-surface: #FFFFFF;
    --color-text: #2d2d2d;
    --color-text-light: #666666;
    --color-border: #d1d1d1;
    --color-success: #4caf50;
    --color-warning: #ff9800;
    --color-danger: #f44336;
    --color-emergency: #d32f2f;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* 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-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    --font-size-xxxl: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-index */
    --z-bottom-nav: 100;
    --z-header: 90;
    --z-toast: 1000;
    --z-modal: 999;
    
    /* Layout */
    --header-height: 60px;
    --bottom-nav-height: 65px;
    --max-width: 1200px;

    /* Safe area */
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --color-background: #1a1a2e;
    --color-surface: #16213e;
    --color-text: #eaeaea;
    --color-text-light: #b0b0b0;
    --color-border: #3a3a4a;
    --color-primary: #9d8ff5;
    --color-secondary: #1e3a5f;
}

/* Dark Mode Disclaimer */
[data-theme="dark"] .samu-disclaimer {
    background: linear-gradient(135deg, #2d1b1b 0%, #3d2525 100%);
    border-left-color: #ff6b6b;
}

[data-theme="dark"] .samu-disclaimer h3 {
    color: #ff6b6b;
}

[data-theme="dark"] .samu-disclaimer i {
    color: #ff6b6b;
}

[data-theme="dark"] .samu-disclaimer p {
    color: #d0d0d0;
}

[data-theme="dark"] .samu-disclaimer ul {
    color: #d0d0d0;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.02) 2px, rgba(0,0,0,0.02) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(0,0,0,0.02) 2px, rgba(0,0,0,0.02) 4px);
    padding-top: calc(var(--header-height) + var(--safe-top));
    padding-bottom: calc(var(--bottom-nav-height) + var(--safe-bottom));
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===========================
   TYPOGRAPHY
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-xxxl); }
h2 { font-size: var(--font-size-xxl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p { margin-bottom: var(--spacing-md); }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover, a:focus {
    color: var(--color-primary-dark);
    outline: none;
}

/* ===========================
   ACCESSIBILITY
   =========================== */
.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;
}

*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===========================
   HEADER
   =========================== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
    z-index: var(--z-header);
    transition: background var(--transition-base);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: 100%;
}

.app-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: clamp(1rem, 2.5vw, var(--font-size-xl));
    color: var(--color-primary);
    margin: 0;
}

.app-logo {
    height: 40px;
    width: auto;
    max-width: 50px;
    object-fit: contain;
    animation: heartbeat 2s ease-in-out infinite;
    transition: transform var(--transition-fast);
}

.app-logo:hover {
    transform: scale(1.05);
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    10%, 30% { transform: scale(1.1); }
    20%, 40% { transform: scale(1); }
}

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

.icon-btn {
    position: relative;
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    color: var(--color-text);
    font-size: var(--font-size-lg);
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover, .icon-btn:focus {
    background: var(--color-background);
    transform: scale(1.05);
}

.lang-badge {
    position: absolute;
    bottom: -2px;
    right: -2px;
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 2px 4px;
    border-radius: var(--radius-sm);
}

/* ===========================
   MAIN CONTENT
   =========================== */
.app-main {
    min-height: calc(100vh - var(--header-height) - var(--bottom-nav-height));
}

.content-section {
    display: none;
    animation: fadeIn var(--transition-base);
}

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

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

/* ===========================
   EMERGENCY BANNER
   =========================== */
.emergency-banner {
    margin-bottom: var(--spacing-xl);
}

.emergency-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-emergency) 0%, #c62828 100%);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: clamp(1rem, 2.5vw, var(--font-size-lg));
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); box-shadow: var(--shadow-lg); }
    50% { transform: scale(1.02); box-shadow: var(--shadow-xl); }
}

.emergency-btn:hover, .emergency-btn:focus {
    transform: scale(1.03);
    box-shadow: var(--shadow-xl);
}

.emergency-btn i {
    font-size: var(--font-size-xxl);
    animation: ring 1s ease-in-out infinite;
}

@keyframes ring {
    0%, 100% { transform: rotate(0deg); }
    10%, 30% { transform: rotate(-15deg); }
    20%, 40% { transform: rotate(15deg); }
}

.emergency-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.emergency-title {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.emergency-number {
    font-size: var(--font-size-xxl);
    font-weight: 700;
}

/* ===========================
   SEARCH BAR
   =========================== */
.search-container {
    margin-bottom: var(--spacing-xl);
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.search-box:focus-within {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.search-box i {
    color: var(--color-text-light);
    margin-right: var(--spacing-sm);
}

.search-box input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--font-size-base);
    color: var(--color-text);
    padding: var(--spacing-sm) 0;
    outline: none;
}

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

/* ===========================
   CATEGORIES GRID
   =========================== */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.category-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    border: 2px solid transparent;
    display: block;
}

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

.card-top {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 0;
}

.category-icon {
    font-size: var(--font-size-xxxl);
    flex: 0 0 auto;
}

.card-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 0;
    flex: 1 1 auto;
}

.category-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.category-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    min-width: 0;
}

.category-count {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.category-chev {
    color: var(--color-text-light);
    margin-left: auto;
    flex: 0 0 auto;
}

.category-desc {
    margin-top: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

.category-card * {
    overflow-wrap: anywhere;
    word-break: break-word;
}

.severity-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-top: var(--spacing-xs);
}

.severity-high { background: #ffebee; color: var(--color-danger); }
.severity-medium { background: #fff3e0; color: var(--color-warning); }
.severity-low { background: #e8f5e9; color: var(--color-success); }

/* ===========================
   EMERGENCY DETAIL
   =========================== */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: var(--font-size-base);
    cursor: pointer;
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.back-btn:hover, .back-btn:focus {
    background: var(--color-background);
    transform: translateX(-4px);
}

.emergency-header {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.emergency-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.emergency-header .category-icon {
    font-size: var(--font-size-xxxl);
}

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

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

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

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

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

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

.steps-container {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.step-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background: var(--color-background);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.step-content h4 {
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    margin-bottom: 0;
    color: var(--color-text-light);
}

/* ===========================
   HOSPITALS LIST
   =========================== */
.location-status {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.hospital-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.hospital-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.hospital-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.hospital-distance {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.hospital-address {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

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

.hospital-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.hospital-specialties,
.hospital-region {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

.hospital-specialties i,
.hospital-region i {
    color: var(--color-primary);
    margin-top: 2px;
    flex-shrink: 0;
}

/* ===========================
   TIPS GRID
   =========================== */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.tip-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.tip-icon {
    font-size: var(--font-size-xxl);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.tip-card h3 {
    margin-bottom: var(--spacing-sm);
}

.tip-card p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ===========================
   FAQ SECTION
   =========================== */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

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

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

.faq-icon {
    font-size: var(--font-size-xl);
    font-weight: 300;
    transition: transform var(--transition-base);
}

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

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-light);
    line-height: 1.7;
}

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

/* ===========================
   BOTTOM NAVIGATION
   =========================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--bottom-nav-height) + var(--safe-bottom));
    background: var(--color-surface);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: var(--z-bottom-nav);
    padding: var(--spacing-xs) 0;
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--color-text-light);
    font-size: var(--font-size-xs);
    text-decoration: none;
    transition: all var(--transition-fast);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
}

.nav-item i {
    font-size: var(--font-size-xl);
}

.nav-item:hover, .nav-item:focus {
    color: var(--color-primary);
    background: var(--color-background);
}

.nav-item.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* ===========================
   FOOTER
   =========================== */
.app-footer {
    background: var(--color-surface);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    margin-top: var(--spacing-xxl);
    border-top: 1px solid var(--color-border);
}

.app-footer p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

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

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

.footer-disclaimer {
    font-size: var(--font-size-sm);
    font-style: italic;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* ===========================
   TOAST NOTIFICATION
   =========================== */
.toast {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + var(--spacing-md) + var(--safe-bottom));
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-text);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: var(--z-toast);
    opacity: 0;
    transition: all var(--transition-base);
    max-width: 90%;
}

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

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

/* ===========================
   RECENT ACCESS
   =========================== */
.recent-section {
    margin-top: var(--spacing-xl);
}

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

.recent-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.recent-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.recent-item .category-icon {
    font-size: var(--font-size-xl);
    margin: 0;
}

.recent-info {
    flex: 1;
}

.recent-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.recent-time {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ===========================
   MODAL
   =========================== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--spacing-md);
}

.modal[hidden] {
    display: none;
}

.modal-content {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 640px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

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

.modal-body {
    padding: var(--spacing-lg);
    color: var(--color-text-light);
}

.sources-list {
    margin-top: var(--spacing-md);
    padding-left: 1.25rem;
}

.sources-list li {
    margin-bottom: var(--spacing-xs);
}

/* ===========================
   RESPONSIVE DESIGN
   =========================== */
@media (max-width: 768px) {
    :root {
        --font-size-xxxl: 1.75rem;
        --font-size-xxl: 1.375rem;
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .emergency-actions {
        flex-direction: column;
    }
    
    .hospital-actions {
        flex-direction: column;
    }
}

@media (min-width: 769px) {
    .container {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .bottom-nav {
        display: flex !important;
        max-width: var(--max-width);
        margin: 0 auto;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        position: fixed;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 100%;
        max-width: var(--max-width);
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
        z-index: var(--z-bottom-nav);
    }
    
    body {
        padding-bottom: calc(var(--bottom-nav-height) + var(--safe-bottom));
    }
    
    /* Melhorar espaçamento dos itens de navegação em desktop */
    .nav-item {
        padding: var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .nav-item i {
        font-size: var(--font-size-lg);
    }
}

@media (max-width: 480px) {
    .categories-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 360px) {
    .tip-card {
        padding: var(--spacing-md);
    }
    .category-card {
        grid-template-columns: 48px 1fr 16px;
    }
    .category-icon { width: 48px; }
    .category-icon { font-size: var(--font-size-xxl); }
    .category-title { white-space: normal; }
    .app-logo {
        height: 32px;
        max-width: 40px;
    }
}

/* ===========================
   UTILITY CLASSES
   =========================== */
.text-center { text-align: center; }
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.mt-1 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-md); }
.hidden { display: none !important; }

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}

/* SAMU Disclaimer */
.samu-disclaimer {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe5e5 100%);
    border-left: 4px solid var(--color-danger);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.samu-disclaimer i {
    color: var(--color-danger);
    font-size: var(--font-size-xxxl);
    margin-bottom: var(--spacing-md);
}

.samu-text {
    width: 100%;
    text-align: left;
}

.samu-disclaimer h3 {
    color: var(--color-danger);
    margin-bottom: var(--spacing-xs);
}

.samu-disclaimer p {
    color: var(--color-text-light);
    margin: 0;
}

.btn-emergency {
    background: var(--color-emergency);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.btn-emergency:hover, .btn-emergency:focus {
    background: #b71c1c;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}