/* ==========================================
   RESPIRA - Sistema de Apoio para Ansiedade
   Cores calmantes e design acolhedor
   ========================================== */

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

:root {
    /* Cores principais - Paleta calmante */
    --primary-color: #6B9BD1;        /* Azul sereno */
    --primary-dark: #4A7BA7;
    --primary-light: #A8C9E8;
    
    --secondary-color: #88C9A6;      /* Verde tranquilo */
    --secondary-dark: #6BA98C;
    --secondary-light: #B5E0CC;
    
    --accent-color: #E8B4B8;         /* Rosa suave */
    --accent-dark: #D89599;
    
    --warning-color: #F4A261;        /* Laranja suave */
    --danger-color: #E76F51;         /* Vermelho suave */
    --success-color: #88C9A6;
    
    /* Cores neutras */
    --bg-color: #F8F9FA;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F0F4F8;
    
    --text-primary: #2D3748;
    --text-secondary: #4A5568;
    --text-light: #718096;
    
    --border-color: #E2E8F0;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    /* Tipografia */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Transições */
    --transition-base: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================
   Header e Navegação
   ========================================== */

.header {
    background: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-base);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.8rem;
    animation: heartbeat 2s ease-in-out infinite;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-base);
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-base);
}

.nav-menu a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* ==========================================
   Hero Section
   ========================================== */

.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #6B9BD1 0%, #88C9A6 100%);
    position: relative;
    overflow: hidden;
    padding: var(--spacing-xl) var(--spacing-md);
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    animation: fadeInDown 1s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.4s both;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Elementos flutuantes decorativos */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.float-circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 20s ease-in-out infinite;
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.circle-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 15%;
    animation-delay: 5s;
}

.circle-3 {
    width: 150px;
    height: 150px;
    bottom: 10%;
    left: 50%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* ==========================================
   Botões
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    font-family: var(--font-primary);
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* ==========================================
   Quick Help Alert
   ========================================== */

.quick-help {
    padding: var(--spacing-lg) 0;
    background: var(--bg-color);
}

.quick-help-alert {
    background: linear-gradient(135deg, #FFF4E6 0%, #FFE8CC 100%);
    border-left: 4px solid var(--warning-color);
    padding: var(--spacing-md);
    border-radius: 12px;
    display: flex;
    gap: var(--spacing-md);
    align-items: start;
}

.quick-help-alert i {
    font-size: 1.5rem;
    color: var(--warning-color);
    flex-shrink: 0;
}

.quick-help-alert h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.quick-help-alert p {
    color: var(--text-secondary);
}

.quick-help-alert a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: underline;
}

/* ==========================================
   Section Headers
   ========================================== */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.section-header h2 i {
    color: var(--primary-color);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ==========================================
   Breathing Section
   ========================================== */

.breathing-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.breathing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.breathing-card {
    background: var(--bg-color);
    padding: var(--spacing-lg);
    border-radius: 16px;
    text-align: center;
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.breathing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.breathing-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.breathing-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

/* Interactive Breathing Tool */
.breathing-tool {
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
    border-radius: 20px;
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    display: none;
    animation: fadeIn 0.5s ease;
}

.breathing-tool.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

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

.breathing-tool-header h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary-dark);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: var(--transition-base);
}

.close-btn:hover {
    background: rgba(0,0,0,0.1);
    color: var(--text-primary);
}

.breathing-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: var(--spacing-xl) 0;
    min-height: 350px;
}

.breathing-circle {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 40px rgba(107, 155, 209, 0.3);
    transition: var(--transition-slow);
}

.breathing-circle.inhale {
    transform: scale(1.3);
    box-shadow: 0 0 60px rgba(107, 155, 209, 0.5);
}

.breathing-circle.hold {
    transform: scale(1.3);
}

.breathing-circle.exhale {
    transform: scale(0.8);
    box-shadow: 0 0 20px rgba(107, 155, 209, 0.2);
}

.breathing-text {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    text-align: center;
}

.breathing-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.breathing-counter {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.breathing-counter strong {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.breathing-tips {
    background: white;
    padding: var(--spacing-md);
    border-radius: 12px;
    margin-top: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-sm);
    align-items: start;
}

.breathing-tips i {
    color: var(--warning-color);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.breathing-tips p {
    color: var(--text-secondary);
}

/* ==========================================
   Mindfulness Section
   ========================================== */

.mindfulness-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-tertiary);
}

.mindfulness-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.mindfulness-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.mindfulness-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

.mindfulness-card .card-header i {
    font-size: 2rem;
    color: var(--secondary-color);
}

.mindfulness-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--text-primary);
}

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

/* Mindfulness Player */
.mindfulness-player {
    background: white;
    border-radius: 20px;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-xl);
    display: none;
    animation: fadeIn 0.5s ease;
}

.mindfulness-player.active {
    display: block;
}

.player-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.player-header h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--secondary-dark);
}

.player-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: var(--spacing-xl) 0;
    min-height: 200px;
}

.pulse-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.8;
    }
}

.player-instruction {
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.player-instruction p {
    font-size: 1.3rem;
    color: var(--text-primary);
    line-height: 1.8;
    font-weight: 500;
}

.player-progress {
    margin: var(--spacing-lg) 0;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    border-radius: 10px;
    width: 0%;
    transition: width 0.3s ease;
}

#progressTime {
    display: block;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.player-controls {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

/* ==========================================
   Emergency Section
   ========================================== */

.emergency-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.emergency-header h2 {
    color: var(--danger-color);
}

.emergency-alert {
    background: linear-gradient(135deg, #FEE2E2 0%, #FECACA 100%);
    border-left: 4px solid var(--danger-color);
    padding: var(--spacing-lg);
    border-radius: 12px;
    display: flex;
    gap: var(--spacing-md);
    align-items: start;
    margin-bottom: var(--spacing-xl);
}

.emergency-alert i {
    font-size: 2rem;
    color: var(--danger-color);
    flex-shrink: 0;
}

.emergency-alert h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.emergency-alert p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.emergency-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.emergency-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border-color);
    transition: var(--transition-base);
}

.emergency-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--danger-color);
}

.emergency-icon {
    background: linear-gradient(135deg, var(--danger-color), var(--warning-color));
}

.emergency-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin: var(--spacing-md) 0;
    color: var(--text-primary);
}

.emergency-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

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

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.2rem;
    transition: var(--transition-base);
}

.contact-link:hover {
    color: var(--primary-dark);
    transform: translateX(5px);
}

.info-text {
    color: var(--text-light);
    font-size: 0.9rem;
}

.self-help-tips {
    background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
    padding: var(--spacing-lg);
    border-radius: 16px;
}

.self-help-tips h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.self-help-tips h3 i {
    color: var(--danger-color);
}

.self-help-tips ul {
    list-style: none;
    display: grid;
    gap: var(--spacing-sm);
}

.self-help-tips li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.self-help-tips li i {
    color: var(--success-color);
    font-size: 1.2rem;
}

/* ==========================================
   About Anxiety Section
   ========================================== */

.about-anxiety-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-tertiary);
}

.about-content {
    display: grid;
    gap: var(--spacing-xl);
}

.info-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.info-card h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.info-card h3 i {
    color: var(--primary-color);
}

.info-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.1rem;
}

.symptoms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.symptom-item {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: 12px;
}

.symptom-item i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.symptom-item h4 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.symptom-item ul {
    list-style: none;
    color: var(--text-secondary);
}

.symptom-item li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.symptom-item li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.anxiety-types {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.type-item {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.type-item h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.type-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.highlight-card {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    border-left: 4px solid var(--warning-color);
}

.help-list {
    list-style: none;
    margin-top: var(--spacing-md);
}

.help-list li {
    padding: var(--spacing-sm) 0;
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.help-list i {
    color: var(--success-color);
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.treatment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.treatment-item {
    text-align: center;
    padding: var(--spacing-md);
}

.treatment-item i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.treatment-item h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.treatment-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================
   Footer
   ========================================== */

.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-light);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-light);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    padding: var(--spacing-xs) 0;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-section a:hover {
    color: var(--primary-light);
}

.disclaimer {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm);
    border-radius: 8px;
    font-size: 0.9rem;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom i {
    color: var(--danger-color);
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .breathing-circle {
        width: 200px;
        height: 200px;
    }
    
    .breathing-text {
        font-size: 1.5rem;
    }
    
    .symptoms-grid,
    .treatment-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .breathing-cards,
    .mindfulness-grid,
    .emergency-cards {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* ==========================================
   Utilities
   ========================================== */

.hidden {
    display: none !important;
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus States for Accessibility */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}