:root {
    
    --color-1: #fdb94e; 
    --color-2: #f38654; 
    --color-9: #56c1ab; 
    --color-10: #6a6b6a;
    --color-selected: var(--color-9); 

    
    --color-info-bg: #d1ecf1; 
    --color-info-text: #0c5460; 
    --color-success-bg: #d4edda; 
    --color-success-text: #155724; 
    --color-warning-bg: #fff3cd; 
    --color-warning-text: #856404; 
    --color-danger-bg: #f8d7da; 
    --color-danger-text: #721c24; 
}

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

body, html {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f0f2f5;
    overflow-x: hidden;
}

#app {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(to bottom, #ffffff, #e0e0e0);
}

.screen {
    display: none;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
    padding: 15px;
    overflow-y: auto;
}

.screen.active {
    display: flex;
}


.app-header {
    text-align: center;
    padding: 15px 0;
    flex-shrink: 0;
}

.app-header h1 {
    font-size: 1.8rem;
    margin: 0;
    
    color: var(--color-1); 
}

.app-header p {
    font-size: 0.9rem;
    color: #666;
    margin: 5px 0 0;
}


#welcomeScreen {
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
}

#welcomeScreen h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    
    color: var(--color-2); 
}

#welcomeScreen p {
    margin-bottom: 30px;
    color: #555;
}

#startButton {
    padding: 12px 25px;
    font-size: 1.1rem;
    border-radius: 30px;
    
    background: linear-gradient(to right, var(--color-1), var(--color-2)); 
    border: none;
    color: white;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}


#citySelectionScreen {
    
}

#cityCardContainer {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px; 
    margin-top: 20px;
}

.city-card {
    width: 150px;
    border: 1px solid #ccc;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s ease-in-out;
}

.city-card:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.city-card.selected {
    
    border-color: var(--color-selected);
    box-shadow: 0 2px 5px rgba(86, 193, 171, 0.4); 
}

.city-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.city-name {
    text-align: center;
    padding: 10px;
    font-weight: bold;
}

#citySelectionStatus {
    margin-top: 15px; 
}


#interestSelectionScreen {
    
}

#interestButtonContainer {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px; 
    margin-top: 20px;
    padding: 0 10px; 
}

.interest-button {
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    padding: 10px 20px;
    border-radius: 20px; 
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease; 
}

.interest-button:hover {
    background-color: #e0e0e0; 
}

.interest-button.selected {
    
    background-color: var(--color-selected); 
    color: white;
    border-color: var(--color-selected); 
    
    
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transform: scale(1.05); 
}

#interestSelectionStatus {
    margin-top: 15px; 
}

.itinerary-day {
    background-color: #ffffff;
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.itinerary-place {
    border-bottom: 1px solid #e9ecef;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.itinerary-place:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.explanation {
    font-style: italic;
    
    background-color: rgba(86, 193, 171, 0.15); 
    padding: 0.75rem;
    border-radius: 0.375rem;
    margin-top: 0.5rem;
    color: #495057; 
}

#itineraryStatus {
    margin-top: 15px; 
}

.btn-primary {
    background: linear-gradient(to right, var(--color-1), var(--color-2));
    border: none;
    padding: 10px 15px;
    border-radius: 20px;
    font-weight: bold;
    color: white;
}

.btn-primary:hover {
    opacity: 0.9; 
}

.btn-secondary {
    
    background-color: var(--color-10); 
    border: none; 
    padding: 10px 15px;
    border-radius: 20px; 
    color: white; 
}


.btn-secondary:hover {
    opacity: 0.9;
}

.nav-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: auto;
    padding: 15px 0;
    flex-shrink: 0;
}

.status-message {
    margin: 10px 0;
    padding: 10px;
    border-radius: 5px;
    text-align: center;
}

.status-message.alert-info {
    background-color: var(--color-info-bg);
    color: var(--color-info-text);
}

.status-message.alert-success {
    background-color: var(--color-success-bg);
    color: var(--color-success-text);
}

.status-message.alert-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning-text);
}

.status-message.alert-danger {
    background-color: var(--color-danger-bg);
    color: var(--color-danger-text);
}


.loading-spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    vertical-align: text-bottom;
    border: 0.2em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
    to {
        transform: rotate(360deg);
    }
}

.explanation-placeholder {
    display: flex;
    align-items: center;
    font-style: italic;
    color: #6c757d;
}

.explanation-placeholder .spinner-border {
    margin-right: 10px;
}


.app-footer {
    text-align: center;
    padding: 10px 0;
    font-size: 0.75rem;
    color: #999;
    flex-shrink: 0;
}

.card-body {
    display: flex;
    flex-direction: column;
}

.card-text.flex-grow-1 {
    flex-grow: 1;
}

.btn-outline-primary {
    font-size: 0.875rem;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.popularity-circle {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #e0e0e0;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.popularity-circle::after {
    content: attr(data-percent);
    font-size: 0.6rem;
    font-weight: bold;
    color: #333;
}

.popularity-circle::before {
    content: none;
}

.popularity-circle:hover::after {
    content: attr(data-percent);
    position: absolute;
    top: 100%; 
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
    z-index: 1000;
}


.sidebar {
    height: 100vh;
    width: 0;
    position: fixed;
    z-index: 1050;
    top: 0;
    left: 0;
    background-color: #f8f9fa;
    overflow-x: hidden;
    transition: 0.3s;
    padding-top: 60px;
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
}

.sidebar.open {
    width: 250px; 
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 15px 15px 15px;
    border-bottom: 1px solid #dee2e6;
    margin-bottom: 15px;
}

.sidebar-header h5 {
    margin: 0;
    color: var(--color-1); 
}

.sidebar-content {
    padding: 0 15px;
}

.sidebar .nav-link {
    padding: 10px 0;
    color: #495057;
    border-radius: 5px;
    margin-bottom: 5px;
    transition: background-color 0.2s;
}

.sidebar .nav-link:hover, .sidebar .nav-link.active {
    background-color: rgba(253, 185, 78, 0.2); 
    color: var(--color-1);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); 
    z-index: 1040; 
}

.sidebar-overlay.active {
    display: block;
}

.sidebar-toggle {
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 1030; 
    border: none;
    padding: 5px 10px;
    font-size: 1.5rem;
    line-height: 1;
}


#welcomeScreen .sidebar-toggle,
#historyScreen .sidebar-toggle {
    display: none;
}


.main-content {
    transition: margin-left 0.3s;
}

.main-content.shifted {
    margin-left: 250px; 
}


#historyScreen {
    padding-top: 60px; 
}

.history-item {
    background-color: #ffffff;
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    cursor: pointer;
    transition: box-shadow 0.2s;
}

.history-item:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.history-item h6 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: var(--color-2);
}

.history-item small {
    color: #6c757d;
}

.history-item .badge {
    font-size: 0.7em;
    margin-left: 5px;
}
.accordion {
    border: none;
}

.accordion-button.collapsed {
    background-color: transparent;
    color: #6c757d;
}

.accordion-button:not(.collapsed) {
    background-color: rgba(var(--bs-primary-rgb), 0.1);
    color: var(--primary-color);
}

.accordion-body {
    padding: 0.5rem 1rem;
}
.popularity-circle::before {
    transition: background 0.3s ease-in-out;
}

.logo-image {
    width: 60px; 
    height: auto;
    border-radius: 50%; 
    margin-bottom: 1rem; 
}

.background-video-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh; 
    overflow: hidden;
    z-index: -1; 
}

.background-video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover; 
    position: absolute;
    top: 0;
    left: 0;
}

.dark-tint {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6); 
    z-index: 0; 
}

.content-overlay {
    position: relative;
    z-index: 1; 
    padding: 2rem; 
}