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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #212529;
    background-color: #FFFFFF;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: #FFFFFF;
    box-shadow: 0 2px 10px rgba(33, 37, 41, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__content {
    text-align: center;
    padding: 20px 0;
}

.header__logo {
    font-size: 2.5rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: 8px;
}

.header__tagline {
    color: #6c757d;
    font-size: 1.1rem;
}

/* Navigation */
.nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 15px 0;
    border-top: 1px solid #E9ECEF;
    flex-wrap: wrap;
}

.nav__item {
    background: none;
    border: 2px solid #DEE2E6;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
    color: #212529;
}

.nav__item:hover,
.nav__item.active {
    background-color: #212529;
    color: #FFFFFF;
    border-color: #212529;
}

/* Main Content */
.main {
    min-height: calc(100vh - 200px);
}

/* Sections */
.section {
    display: none;
    padding: 40px 0;
    min-height: 500px;
}

.section.active {
    display: block;
}

.section--welcome {
    background: linear-gradient(135deg, #F8F9FA 0%, #E9ECEF 100%);
}

.section__title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 40px;
    color: #212529;
    font-weight: 600;
}

/* Welcome Section */
.welcome {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.welcome__title {
    font-size: 3rem;
    margin-bottom: 20px;
    color: #212529;
    font-weight: 700;
}

.welcome__description {
    font-size: 1.2rem;
    color: #6c757d;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.welcome__features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

/* Feature Cards */
.feature-card {
    background: #FFFFFF;
    padding: 30px 20px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(33, 37, 41, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(33, 37, 41, 0.15);
}

.feature-card__icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-card__title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #212529;
    font-weight: 600;
}

.feature-card__description {
    color: #6c757d;
    font-size: 0.95rem;
}

/* Buttons */
.btn {
    background-color: #212529;
    color: #FFFFFF;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn:hover {
    background-color: #495057;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(33, 37, 41, 0.2);
}

.btn--primary {
    background-color: #212529;
}

.btn--small {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn--secondary {
    background-color: #6c757d;
}

.btn--secondary:hover {
    background-color: #5a6268;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #212529;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #DEE2E6;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background-color: #FFFFFF;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #212529;
}

.radio-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 0;
    cursor: pointer;
    font-weight: normal;
}

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

/* Simulator */
.simulator {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.simulator__form {
    background: #F8F9FA;
    padding: 30px;
    border-radius: 15px;
}

.simulator__form h3 {
    margin-bottom: 20px;
    color: #212529;
    font-size: 1.3rem;
    border-bottom: 2px solid #DEE2E6;
    padding-bottom: 10px;
}

.simulator__results {
    background: #FFFFFF;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(33, 37, 41, 0.1);
    position: sticky;
    top: 120px;
}

.results-card {
    background: #F8F9FA;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 15px;
}

.results-card h4 {
    color: #212529;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.results-card p {
    color: #6c757d;
    margin-bottom: 5px;
}

.results-highlight {
    background: #212529;
    color: #FFFFFF;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    margin-top: 20px;
}

.results-highlight h4 {
    color: #FFFFFF;
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* Lifestyle */
.lifestyle__profiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.profile-card {
    background: #FFFFFF;
    padding: 25px 15px;
    border-radius: 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 3px solid #E9ECEF;
}

.profile-card:hover,
.profile-card.selected {
    border-color: #212529;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(33, 37, 41, 0.1);
}

.profile-card__icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.profile-card h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #212529;
}

.profile-card p {
    color: #6c757d;
    font-size: 0.9rem;
}

.lifestyle__details {
    background: #F8F9FA;
    padding: 30px;
    border-radius: 15px;
}

.lifestyle__details h3 {
    margin-bottom: 20px;
    color: #212529;
}

/* Places */
.places {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
}

.places__filters {
    background: #F8F9FA;
    padding: 30px;
    border-radius: 15px;
    height: fit-content;
    position: sticky;
    top: 120px;
}

.places__filters h3 {
    margin-bottom: 25px;
    color: #212529;
}

.cities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.city-card {
    background: #FFFFFF;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(33, 37, 41, 0.1);
    transition: transform 0.3s ease;
}

.city-card:hover {
    transform: translateY(-5px);
}

.city-card__header {
    background: #212529;
    color: #FFFFFF;
    padding: 20px;
    text-align: center;
}

.city-card__body {
    padding: 20px;
}

.city-card h4 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.city-card__info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    padding: 5px 0;
    border-bottom: 1px solid #E9ECEF;
}

.city-card__info:last-child {
    border-bottom: none;
}

/* Health */
.health {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.health__assessment {
    background: #F8F9FA;
    padding: 30px;
    border-radius: 15px;
}

.health__results {
    background: #FFFFFF;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(33, 37, 41, 0.1);
}

.health__reminders {
    grid-column: 1 / -1;
    background: #F8F9FA;
    padding: 30px;
    border-radius: 15px;
    margin-top: 20px;
}

.reminders-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.reminder-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #FFFFFF;
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(33, 37, 41, 0.05);
}

.health-tip {
    background: #E9ECEF;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 15px;
    border-left: 4px solid #212529;
}

/* Dreams */
.dreams {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 40px;
}

.dreams__planner {
    background: #F8F9FA;
    padding: 30px;
    border-radius: 15px;
    height: fit-content;
    position: sticky;
    top: 120px;
}

.dreams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.dream-card {
    background: #FFFFFF;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(33, 37, 41, 0.1);
    transition: transform 0.3s ease;
}

.dream-card:hover {
    transform: translateY(-3px);
}

.dream-card__header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
}

.dream-card__title {
    font-size: 1.2rem;
    color: #212529;
    margin-bottom: 5px;
}

.dream-card__type {
    background: #E9ECEF;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    color: #212529;
}

.dream-card__cost {
    font-size: 1.1rem;
    font-weight: 600;
    color: #212529;
    margin-bottom: 10px;
}

.dream-card__date {
    color: #6c757d;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.dream-card__description {
    color: #6c757d;
    line-height: 1.5;
    margin-bottom: 15px;
}

.dream-card__progress {
    background: #E9ECEF;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.dream-card__progress-bar {
    background: #212529;
    height: 100%;
    transition: width 0.3s ease;
}

/* Footer */
.footer {
    background-color: #212529;
    color: #FFFFFF;
    text-align: center;
    padding: 20px 0;
    margin-top: 60px;
}

.footer__text {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header__logo {
        font-size: 2rem;
    }
    
    .welcome__title {
        font-size: 2.2rem;
    }
    
    .section__title {
        font-size: 2rem;
    }
    
    .nav {
        gap: 5px;
    }
    
    .nav__item {
        padding: 8px 15px;
        font-size: 0.8rem;
    }
    
    .simulator {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .places {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .places__filters {
        position: static;
    }
    
    .health {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .dreams {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .dreams__planner {
        position: static;
    }
    
    .welcome__features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .radio-group {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .cities-grid {
        grid-template-columns: 1fr;
    }
    
    .dreams-grid {
        grid-template-columns: 1fr;
    }
    
    .reminders-list {
        grid-template-columns: 1fr;
    }
    
    .reminder-item {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #212529;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .feature-card,
    .city-card,
    .dream-card {
        border: 2px solid #212529;
    }
}

/* Print styles */
@media print {
    .header,
    .nav,
    .footer {
        display: none;
    }
    
    .section {
        display: block !important;
        page-break-inside: avoid;
    }
    
    .btn {
        display: none;
    }
}