:root {
    /* Professional Green & White Color Palette for 30-59 age group */
    --primary-gradient: linear-gradient(135deg, #1b5e20 0%, #2e7d32 100%);
    --secondary-gradient: linear-gradient(135deg, #2e7d32 0%, #388e3c 100%);
    --accent-gradient: linear-gradient(135deg, #43a047 0%, #66bb6a 100%);
    --success-gradient: linear-gradient(135deg, #66bb6a 0%, #81c784 100%);

    /* Clean, professional backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f1f8f4;
    --bg-tertiary: #e8f5e9;

    /* Subtle glass effects for modern touch */
    --glass-bg: rgba(255, 255, 255, 0.98);
    --glass-border: rgba(27, 94, 32, 0.2);

    /* Text colors with excellent contrast (WCAG AA compliant) */
    --text-primary: #1b5e20;
    /* Dark green - 7.5:1 contrast on white */
    --text-secondary: #2e7d32;
    /* Medium dark green - 5.8:1 contrast */
    --text-muted: #388e3c;
    /* Medium green - 4.5:1 contrast */
    --text-light: #757575;
    /* Gray for subtle text */

    /* Professional shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.18);
    --shadow-glow: 0 0 20px rgba(27, 94, 32, 0.2);

    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;

    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    background-image:
        radial-gradient(circle at 20% 50%, rgba(45, 134, 89, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(67, 160, 71, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 90%, rgba(102, 187, 106, 0.02) 0%, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.hidden {
    display: none !important;
}

/* ==================== ONBOARDING ==================== */

.onboarding {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.onboarding-container {
    width: 100%;
    max-width: 480px;
    animation: fadeInUp 0.6s ease-out;
}

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

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

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

.logo-text {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.logo-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.onboarding-form {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

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

.form-group label {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="number"] {
    width: 100%;
    padding: var(--spacing-md);
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus {
    outline: none;
    border-color: #43a047;
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(67, 160, 71, 0.1);
}

.form-group input::placeholder {
    color: #757575;
}

/* Time Picker Styles */
.time-picker-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.time-input {
    width: 100%;
    padding: var(--spacing-md);
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    transition: var(--transition);
    text-align: center;
}

.time-input:focus {
    outline: none;
    border-color: #43a047;
    box-shadow: 0 0 0 3px rgba(67, 160, 71, 0.1);
}

.time-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-sm);
}

@media (max-width: 440px) {
    .time-examples {
        grid-template-columns: 1fr;
    }

    .time-example-btn {
        flex-direction: row;
        padding: var(--spacing-sm) var(--spacing-md);
        gap: var(--spacing-md);
        text-align: left;
    }

    .time-icon {
        font-size: 1.5rem;
    }

    .time-label {
        text-align: left;
    }
}

.time-example-btn {
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: inherit;
}

.time-example-btn:hover {
    background: #f1f8f4;
    border-color: #66bb6a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.time-example-btn:active {
    transform: translateY(0);
}

.time-icon {
    font-size: 2rem;
}

.time-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    line-height: 1.3;
}

.time-label small {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.janela-info {
    margin-top: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(67, 160, 71, 0.1) 0%, rgba(46, 125, 50, 0.1) 100%);
    border: 2px solid rgba(67, 160, 71, 0.3);
    border-radius: var(--radius-md);
    display: flex;
    gap: var(--spacing-md);
    animation: slideDown 0.4s ease;
}

.janela-info.hidden {
    display: none;
}

.janela-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.janela-content {
    flex: 1;
}

.janela-content strong {
    display: block;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.janela-horario {
    display: block;
    font-size: 1.3rem;
    font-weight: 700;
    color: #2e7d32;
    margin-bottom: var(--spacing-xs);
}

.janela-explicacao {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}


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

.radio-option {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.radio-option:hover {
    background: #f1f8f4;
    border-color: #66bb6a;
}

.radio-option input[type="radio"] {
    margin-right: var(--spacing-sm);
    cursor: pointer;
    width: 20px;
    height: 20px;
    accent-color: #2d8659;
}

.radio-option input[type="radio"]:checked+.radio-label {
    color: var(--text-primary);
    font-weight: 600;
}

.radio-label {
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
}

.form-helper {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: rgba(67, 160, 71, 0.05);
    border-left: 3px solid #43a047;
    border-radius: 4px;
}

.protocol-option {
    padding: var(--spacing-md);
}

.protocol-option input[type="radio"] {
    margin-right: var(--spacing-md);
}

.protocol-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.protocol-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.protocol-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}


.btn-primary {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-sm);
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.btn-primary:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 1.2rem;
    transition: var(--transition);
}

.btn-primary:hover .btn-icon {
    transform: translateX(4px);
}

/* ==================== MAIN APP ==================== */

.app {
    min-height: 100vh;
    padding: var(--spacing-lg);
    padding-bottom: 120px;
    animation: fadeInUp 0.6s ease-out;
}

.app-header {
    margin-bottom: var(--spacing-lg);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-greeting {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.icon-btn,
.reset-btn {
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover,
.reset-btn:hover {
    background: #f1f8f4;
    color: var(--text-primary);
    border-color: #66bb6a;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

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

.secondary-btn:hover {
    background: #f5f5f5;
    border-color: #ccc;
    transform: translateY(-1px);
}

/* Estado de Alerta Dashboard */
.estado-alerta-section {
    margin-bottom: var(--spacing-lg);
    animation: slideDown 0.5s ease;
}

.estado-card {
    background: linear-gradient(135deg, rgba(255, 152, 0, 0.1) 0%, rgba(255, 193, 7, 0.1) 100%);
    border: 2px solid rgba(255, 152, 0, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

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

.estado-icon {
    font-size: 2.5rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

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

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

.estado-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.estado-mensagem {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.estado-acao {
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    color: #ffffff;
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.acao-icon {
    font-size: 1.5rem;
}

.acao-texto {
    flex: 1;
}

.estado-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}


/* Day Display */

.day-display {
    margin-bottom: var(--spacing-xl);
}

.day-number-container {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.day-label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 2px;
    margin-bottom: var(--spacing-xs);
}

.day-number {
    display: block;
    font-size: 5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.day-total {
    display: block;
    font-size: 1.15rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #e8f5e9;
    border-radius: 100px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 100px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Meals Container */

.meals-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.meal-card {
    background: #ffffff;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid #e8f5e9;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    animation: slideIn 0.4s ease-out backwards;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

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

.meal-card:nth-child(1) {
    animation-delay: 0.1s;
}

.meal-card:nth-child(2) {
    animation-delay: 0.2s;
}

.meal-card:nth-child(3) {
    animation-delay: 0.3s;
}

.meal-card:nth-child(4) {
    animation-delay: 0.4s;
}

.meal-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: #66bb6a;
}

.meal-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.meal-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.meal-title h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.swap-btn {
    background: #f1f8f4;
    border: 2px solid #e0e0e0;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.swap-btn:hover {
    background: #e8f5e9;
    border-color: #66bb6a;
    transform: rotate(180deg);
}

.swap-btn:active {
    transform: rotate(180deg) scale(0.95);
}

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

.checkbox-container input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: #2d8659;
}

.checkbox-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
}

.meal-time {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.exact-time {
    display: inline-block;
    margin-left: 8px;
    padding: 4px 8px;
    background: rgba(27, 94, 32, 0.1);
    border-radius: 6px;
    font-size: 0.85rem;
    color: #1b5e20;
    font-weight: 600;
}

.window-warning {
    background: linear-gradient(135deg, rgba(255, 152, 0, 0.1), rgba(255, 193, 7, 0.1));
    border-left: 4px solid #ff9800;
    padding: 12px 16px;
    margin: 12px 0;
    border-radius: 8px;
    font-size: 0.9rem;
    color: #e65100;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

.special-note {
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.1), rgba(25, 118, 210, 0.1));
    border-left: 4px solid #2196F3;
    padding: 12px 16px;
    margin: 12px 0;
    border-radius: 8px;
    font-size: 0.9rem;
    color: #1565C0;
    font-weight: 500;
    line-height: 1.5;
    animation: slideDown 0.3s ease;
}

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

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

.food-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.food-list li {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: #f1f8f4;
    border-left: 4px solid #2e7d32;
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.6;
}

.swap-hint {
    font-size: 0.85rem;
    color: var(--text-light);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.medida-caseira {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 4px;
    padding-left: 8px;
}

.portion-note {
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: #e8f5e9;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 6px;
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.tag {
    display: inline-block;
    margin-top: var(--spacing-xs);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
}

.tag-abdominal {
    background: #e8f5e9;
    border: 2px solid #66bb6a;
    color: #1b5e20;
}

.tag-gluteo {
    background: #e8f5e9;
    border: 2px solid #43a047;
    color: #1b5e20;
}

.tag-homogenea {
    background: #e8f5e9;
    border: 2px solid #2d8659;
    color: #1b5e20;
}

.alert {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: 6px;
    font-size: 0.85rem;
}

.alert-protein {
    background: #e8f5e9;
    border-left: 3px solid #2d8659;
    color: #1b5e20;
}

.meal-tag {
    display: inline-block;
    margin-top: var(--spacing-sm);
    padding: 6px 12px;
    background: #e8f5e9;
    border: 2px solid #66bb6a;
    border-radius: 6px;
    font-size: 0.8rem;
    color: #1b5e20;
    font-weight: 600;
}

.meal-notice {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: #e8f5e9;
    border-left: 3px solid #2d8659;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #1b5e20;
}

/* Navigation */

.navigation {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 2px solid #e8f5e9;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
}

.nav-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: var(--transition);
}

.nav-btn:hover:not(:disabled) {
    background: #f1f8f4;
    border-color: #66bb6a;
}

.nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.nav-btn-next {
    background: var(--primary-gradient);
    border: none;
    color: #ffffff;
}

.nav-btn-next:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav-icon {
    font-size: 1.2rem;
}

/* Floating Help Button */

.help-btn {
    position: fixed;
    bottom: 100px;
    right: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--accent-gradient);
    border: none;
    border-radius: 100px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    animation: pulse 2s infinite;
    z-index: 100;
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: var(--shadow-lg);
    }

    50% {
        box-shadow: var(--shadow-lg), 0 0 30px rgba(79, 172, 254, 0.5);
    }
}

.help-btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(79, 172, 254, 0.6);
}

.help-icon {
    font-size: 1.3rem;
}

/* Modal */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 500px;
    background: #ffffff;
    border: 2px solid #e8f5e9;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: 80vh;
    overflow-y: auto;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: #f1f8f4;
    border: 2px solid #e0e0e0;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background: #e8f5e9;
    color: var(--text-primary);
    border-color: #66bb6a;
}

.modal-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.tips-section {
    margin-bottom: var(--spacing-lg);
}

.tips-section h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.tips-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.tips-list li {
    padding: var(--spacing-sm);
    background: #f1f8f4;
    border-left: 4px solid #2e7d32;
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ==================== INGREDIENT SWAP SYSTEM ==================== */

/* Ingredient Item Layout */
.ingredient-item {
    display: flex !important;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.ingredient-content {
    flex: 1;
}

/* Ingredient Swap Button */
.ingredient-swap-btn {
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    min-width: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
    margin-top: 2px;
}

.ingredient-swap-btn:hover {
    background: #e8f5e9;
    border-color: #66bb6a;
    transform: rotate(180deg) scale(1.1);
}

.ingredient-swap-btn:active {
    transform: rotate(180deg) scale(0.95);
}

/* Quick Swap Modal - Glassmorphism Intenso */
.quick-swap-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 2px solid rgba(102, 187, 106, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: 80vh;
    overflow-y: auto;
}

.quick-swap-container h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.swap-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Quick Swap List */
.quick-swap-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

/* Quick Swap Option Button */
.quick-swap-option {
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    text-align: left;
    min-height: 70px;
    font-family: inherit;
}

.quick-swap-option:hover {
    background: #f1f8f4;
    border-color: #66bb6a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.quick-swap-option:active {
    transform: translateY(0);
}

.option-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.option-measure {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .quick-swap-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .quick-swap-option {
        min-height: 60px;
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .onboarding {
        padding: var(--spacing-md);
    }

    .onboarding-form {
        padding: var(--spacing-lg);
    }

    .quick-swap-list {
        grid-template-columns: 1fr;
    }
}

.tips-list li strong {
    color: var(--text-primary);
}

/* Responsive */

@media (min-width: 768px) {
    .app {
        max-width: 600px;
        margin: 0 auto;
    }

    .navigation {
        max-width: 600px;
        left: 50%;
        transform: translateX(-50%);
        border-radius: var(--radius-md) var(--radius-md) 0 0;
    }
}

/* ==================== PWA INSTALL PROMPT ==================== */

.install-prompt {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: var(--spacing-lg);
    animation: fadeIn 0.3s ease;
}

.install-prompt.hidden {
    display: none;
}

.install-prompt-content {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.4s ease;
}

.install-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    animation: bounce 1s ease infinite;
}

.install-prompt-content h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

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

.btn-install {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

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

.btn-install:active {
    transform: translateY(0);
}

.btn-close-install {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    transition: var(--transition);
}

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

/* iOS Instructions */
.ios-instructions {
    text-align: left;
    margin: var(--spacing-lg) 0;
    padding-left: var(--spacing-xl);
}

.ios-instructions li {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.ios-instructions strong {
    color: var(--accent-color);
    font-weight: 600;
}

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

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }

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

@keyframes bounce {

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

    50% {
        transform: translateY(-10px);
    }
}

/* ==================== INTEGRATED PWA INSTALL BUTTON ==================== */

.btn-install-integrated {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, #4a90e2 0%, #357abd 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    margin-top: var(--spacing-md);
}

.btn-install-integrated:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.btn-install-integrated.hidden {
    display: none;
}

.install-icon-small {
    font-size: 1.3rem;
}

.install-text-integrated {
    flex: 1;
    text-align: left;
}

.install-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.ios-install-integrated {
    margin-top: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.1) 0%, rgba(88, 86, 214, 0.1) 100%);
    border: 2px solid rgba(0, 122, 255, 0.3);
    border-radius: var(--radius-md);
    animation: slideDown 0.4s ease;
}

.ios-install-integrated.hidden {
    display: none;
}

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

.ios-icon {
    font-size: 1.5rem;
}

.ios-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.ios-instruction {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.ios-instruction strong {
    color: #007AFF;
    font-weight: 600;
}

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

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

/* ==================== PWA INSTALL IN MODAL ==================== */

.pwa-tips-section {
    border-top: 2px dashed #e0e0e0;
    padding-top: var(--spacing-lg);
}

.btn-install-modal {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, #4a90e2 0%, #357abd 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    font-family: inherit;
}

.btn-install-modal:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.btn-install-modal.hidden {
    display: none;
}

.install-text-modal {
    flex: 1;
    text-align: left;
}

.ios-install-modal {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.08) 0%, rgba(88, 86, 214, 0.08) 100%);
    border: 2px solid rgba(0, 122, 255, 0.2);
    border-radius: var(--radius-md);
}

.ios-install-modal.hidden {
    display: none;
}

.ios-instruction-modal {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

.ios-instruction-modal strong {
    color: #007AFF;
    font-weight: 600;
}

/* Reset Modal Specifics */
.reset-modal-content {
    text-align: center;
    max-width: 400px;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.reset-modal-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    animation: shake 0.5s ease-in-out infinite;
    display: inline-block;
}

@keyframes shake {

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

    25% {
        transform: rotate(-10deg);
    }

    75% {
        transform: rotate(10deg);
    }
}

.danger-btn {
    background: linear-gradient(135deg, #f44336 0%, #d32f2f 100%) !important;
    border: none !important;
    color: white !important;
}

.danger-btn:hover {
    box-shadow: 0 4px 12px rgba(244, 67, 54, 0.4) !important;
    transform: translateY(-2px);
}

/* Technical Portion Styling */
.technical-portion {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-left: 4px;
    opacity: 0.8;
}

.ingredient-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: #f1f8f4;
    border-left: 4px solid #2e7d32;
    border-radius: 6px;
    margin-bottom: 4px;
}

.ingredient-content {
    flex: 1;
}

.ingredient-swap-btn {
    background: transparent;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition);
    opacity: 0.6;
}

.ingredient-swap-btn:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.05);
    transform: rotate(180deg);
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background: white;
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 300px;
    max-width: 450px;
    border-left: 5px solid var(--primary-color);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-icon {
    font-size: 1.5rem;
}

.toast-message {
    color: var(--text-primary);
    font-size: 0.95rem;
}

.toast-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
    margin-left: 12px;
}

.animate-in {
    animation: toast-in 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.animate-out {
    animation: toast-out 0.4s ease-in forwards;
}

@keyframes toast-in {
    from {
        transform: translateX(120%);
        opacity: 0;
    }

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

@keyframes toast-out {
    from {
        transform: translateX(0);
        opacity: 1;
    }

    to {
        transform: translateX(120%);
        opacity: 0;
    }
}

@media (max-width: 480px) {
    #toast-container {
        left: 16px;
        right: 16px;
        bottom: 16px;
    }

    .toast {
        min-width: unset;
    }
}

/* ==================== FOOD PREFERENCES ==================== */

.preferences-modal-content {
    max-width: 600px;
    width: 95%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.preferences-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.preference-category {
    background: #fdfdfd;
    border: 1px solid #eee;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.preference-category h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-md) 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pref-chip {
    padding: 8px 16px;
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 6px;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.pref-chip:hover {
    border-color: #bdbdbd;
}

/* Estado: Amor (Prioritário) */
.pref-chip.love {
    background: #e8f5e9;
    border-color: #66bb6a;
    color: #2e7d32;
    box-shadow: 0 4px 12px rgba(102, 187, 106, 0.2);
}

.pref-chip.love::after {
    content: "💚";
    font-size: 0.8rem;
}

/* Estado: Ódio (Excluído) */
.pref-chip.hate {
    background: #ffebee;
    border-color: #ef5350;
    color: #c62828;
    box-shadow: 0 4px 12px rgba(239, 83, 80, 0.2);
}

.pref-chip.hate::after {
    content: "❌";
    font-size: 0.8rem;
}

.pref-search-container {
    padding: 0 var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.pref-search-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s ease;
    background: #fdfdfd;
}

.pref-search-input:focus {
    outline: none;
    border-color: #66bb6a;
    box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.1);
    background: #ffffff;
}

.preferences-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid #eee;
}

.preferences-actions .action-btn {
    width: 100%;
}

@media (max-width: 480px) {
    .preferences-modal-content {
        padding: var(--spacing-md);
    }

    .pref-chip {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
}

/* Food Category Badges (Issue #22) */
.food-category-badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 6px;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
    line-height: 1;
}

.badge-proteinas {
    background: rgba(33, 150, 243, 0.1);
    color: #1565C0;
    border: 1px solid rgba(33, 150, 243, 0.2);
}

.badge-carboidratos {
    background: rgba(255, 152, 0, 0.15);
    color: #E65100;
    border: 1px solid rgba(255, 152, 0, 0.3);
}

.badge-fibras {
    background: rgba(76, 175, 80, 0.1);
    color: #2E7D32;
    border: 1px solid rgba(76, 175, 80, 0.2);
}

.badge-gorduras {
    background: rgba(156, 39, 176, 0.1);
    color: #7B1FA2;
    border: 1px solid rgba(156, 39, 176, 0.2);
}

.badge-frutas {
    background: rgba(233, 30, 99, 0.1);
    color: #C2185B;
    border: 1px solid rgba(233, 30, 99, 0.2);
}

/* Priority Star (Issue #23) */
.priority-star {
    font-size: 0.9rem;
    color: #FFD700;
    margin-left: 4px;
    cursor: help;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.priority-option .option-name {
    font-weight: 700;
    color: #2e7d32;
}

/* Optional Ingredients (Integrated Logic) */
.ingredient-item.is-optional {
    opacity: 0.85;
    background: rgba(241, 248, 244, 0.5);
    border-left-style: dashed;
}

.optional-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.65rem;
    color: var(--text-muted);
    background: rgba(117, 117, 117, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 6px;
    cursor: help;
    font-weight: 600;
    text-transform: uppercase;
    vertical-align: middle;
}

.optional-indicator:hover {
    background: rgba(117, 117, 117, 0.2);
    color: var(--text-primary);
}

/* Congratulations Modal Styling */
.congrats-icon-animated {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
    display: inline-block;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
    }
}

.congrats-modal-content {
    text-align: center;
    max-width: 450px;
    padding: var(--spacing-xl);
    border: 2px solid var(--primary-color);
}

/* Celebration Screen */
.celebration-section {
    padding: var(--spacing-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.celebration-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    max-width: 500px;
    width: 100%;
    border: 3px solid var(--primary-color);
}

.achievement-badges {
    display: flex;
    justify-content: space-around;
    margin: var(--spacing-lg) 0;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.badge-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.badge-icon {
    font-size: 2rem;
}

.badge-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.celebration-text {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.celebration-footer {
    font-style: italic;
    color: var(--text-secondary);
    margin: var(--spacing-lg) 0;
}

.animate-up {
    animation: slideUp 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }

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