* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #2196F3;
    --success-green: #4CAF50;
    --warning-yellow: #FFC107;
    --danger-red: #F44336;
    --accent-purple: #9C27B0;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --dark-gray: #333333;
    --medium-gray: #666666;
    --border-gray: #e0e0e0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--light-gray);
    color: var(--dark-gray);
    line-height: 1.6;
    padding-bottom: 80px;
    min-height: 100vh;
}

.app-header {
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-purple));
    color: var(--white);
    padding: 1rem;
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.header-content h1 {
    font-size: 1.2rem;
    font-weight: 600;
}

.language-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    transition: background 0.3s ease;
}

.language-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

.screen {
    display: none;
    animation: fadeIn 0.3s ease;
}

.screen.active {
    display: block;
}

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

.emergency-header {
    text-align: center;
    margin-bottom: 2rem;
}

.emergency-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--danger-red);
}

.emergency-header p {
    color: var(--medium-gray);
    font-size: 1.1rem;
}

.emergency-buttons {
    display: grid;
    gap: 1rem;
    margin-bottom: 2rem;
}

.emergency-btn {
    background: var(--white);
    border: none;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.emergency-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.emergency-btn:hover::before {
    left: 100%;
}

.emergency-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--shadow-strong);
}

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

.emergency-btn i {
    font-size: 2rem;
}

.emergency-btn .number {
    margin-left: auto;
    font-size: 1.5rem;
    font-weight: 700;
}

.emergency-btn.police {
    border-left: 5px solid var(--primary-blue);
    color: var(--primary-blue);
}

.emergency-btn.ambulance {
    border-left: 5px solid var(--danger-red);
    color: var(--danger-red);
}

.emergency-btn.fire {
    border-left: 5px solid var(--warning-yellow);
    color: #e65100;
}

.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.action-btn {
    background: var(--white);
    border: none;
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-strong);
}

.action-btn i {
    font-size: 1.5rem;
}

.action-btn.location {
    color: var(--success-green);
}

.action-btn.medical {
    color: var(--accent-purple);
}

.location-info {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    margin-top: 1rem;
}

.location-info h3 {
    margin-bottom: 1rem;
    color: var(--success-green);
}

#location-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#coordinates {
    background: var(--light-gray);
    padding: 1rem;
    border-radius: 8px;
    font-family: monospace;
    word-break: break-all;
}

.copy-btn {
    background: var(--success-green);
    color: var(--white);
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    font-weight: 500;
    transition: background 0.3s ease;
}

.copy-btn:hover {
    background: #45a049;
}

.screen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.screen-header h2 {
    font-size: 1.8rem;
    color: var(--dark-gray);
}

.add-btn, .edit-btn {
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    transition: background 0.3s ease;
}

.add-btn:hover, .edit-btn:hover {
    background: #1976d2;
}

.contacts-container {
    display: grid;
    gap: 1rem;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--medium-gray);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    margin-bottom: 0.5rem;
}

.contact-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-info h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-gray);
}

.contact-info p {
    color: var(--medium-gray);
    margin-bottom: 0.25rem;
}

.contact-actions {
    display: flex;
    gap: 0.5rem;
}

.call-btn {
    background: var(--success-green);
    color: var(--white);
    border: none;
    padding: 0.75rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.call-btn:hover {
    background: #45a049;
}

.delete-btn {
    background: var(--danger-red);
    color: var(--white);
    border: none;
    padding: 0.75rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.delete-btn:hover {
    background: #d32f2f;
}

.medical-info {
    display: grid;
    gap: 1.5rem;
}

.info-section {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
}

.info-section h3 {
    margin-bottom: 1rem;
    color: var(--accent-purple);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-content {
    color: var(--medium-gray);
    line-height: 1.6;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background: var(--white);
    border-radius: 12px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 30px var(--shadow-strong);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-gray);
}

.modal-header h3 {
    color: var(--dark-gray);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--medium-gray);
    padding: 0.25rem;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.close-btn:hover {
    background: var(--light-gray);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-gray);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

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

form {
    padding: 1.5rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.cancel-btn {
    background: var(--light-gray);
    color: var(--medium-gray);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s ease;
}

.cancel-btn:hover {
    background: #e0e0e0;
}

.save-btn {
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s ease;
}

.save-btn:hover {
    background: #1976d2;
}

.faq-container {
    display: grid;
    gap: 1rem;
}

.faq-item {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark-gray);
    transition: background 0.3s ease;
}

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

.faq-question[aria-expanded="true"] {
    background: var(--light-gray);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary-blue);
    transition: transform 0.3s ease;
}

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

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--medium-gray);
    line-height: 1.6;
    animation: slideDown 0.3s ease;
}

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

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

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--border-gray);
    display: flex;
    justify-content: space-around;
    padding: 0.5rem 0;
    z-index: 100;
    box-shadow: 0 -2px 10px var(--shadow);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--medium-gray);
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    min-width: 60px;
}

.nav-item:hover {
    background: var(--light-gray);
}

.nav-item.active {
    color: var(--primary-blue);
    background: rgba(33, 150, 243, 0.1);
}

.nav-item i {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.nav-item span {
    font-size: 0.8rem;
    font-weight: 500;
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    background: var(--white);
    color: var(--medium-gray);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-gray);
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .header-content h1 {
        font-size: 1.5rem;
    }
    
    .emergency-buttons {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .quick-actions {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .contacts-container {
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    }
    
    .medical-info {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .faq-container {
        grid-template-columns: 1fr;
        max-width: 800px;
        margin: 0 auto;
    }
    
    .bottom-nav {
        max-width: 1200px;
        left: 50%;
        transform: translateX(-50%);
        border-radius: 12px 12px 0 0;
    }
}

@media (min-width: 1024px) {
    .main-content {
        padding: 2rem;
    }
    
    .emergency-header h2 {
        font-size: 2.5rem;
    }
    
    .emergency-btn {
        padding: 2rem;
        font-size: 1.2rem;
    }
    
    .emergency-btn i {
        font-size: 2.5rem;
    }
    
    .emergency-btn .number {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 0.5rem;
    }
    
    .header-content h1 {
        font-size: 1rem;
    }
    
    .emergency-header h2 {
        font-size: 1.5rem;
    }
    
    .emergency-btn {
        padding: 1rem;
        font-size: 1rem;
    }
    
    .emergency-btn i {
        font-size: 1.5rem;
    }
    
    .emergency-btn .number {
        font-size: 1.2rem;
    }
    
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    .screen-header h2 {
        font-size: 1.5rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions button {
        width: 100%;
    }
}