:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --accent-color: #e74c3c;
    --background-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #2c3e50;
    --text-muted: #6c757d;
    --border-color: #e9ecef;
}

body {
    background: var(--background-color);
    color: var(--text-color);
    min-height: 100vh;
    font-family: "Ubuntu", sans-serif;
    font-weight: 400;
}

h6 {
    font-weight: 400;
}

b, strong {
    font-weight: 700;
}

#navbar-wrapper {
    z-index: 1000;
}

.navbar {
    background: var(--card-bg) !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-dark {
    background: var(--card-bg) !important;
}

#map {
    text-align: center;
    margin: auto;
    height: 400px;
    width: 90%;
    margin-bottom: 30px;
    z-index: 10;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    overflow: hidden;
}

.toast {
    width: 400px;
    background: var(--card-bg);
    border: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.toast-header {
    background: var(--primary-color);
    color: #ffffff;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.toast-body {
    color: var(--text-color);
}

.clickable-text {
    color: var(--primary-color);
    text-decoration: none;
    cursor: pointer;
    font-size: small;
    transition: color 0.3s ease;
}

.clickable-text:hover {
    color: #2980b9;
    text-decoration: underline;
}

#research-button {
    position: fixed;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    color: var(--text-color);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

#research-button:hover {
    background: var(--primary-color);
    color: #ffffff;
    transform: translateY(-50%) scale(1.05);
}

#log-button, #home-button, #how-to-play-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

#log-button:hover, #home-button:hover, #how-to-play-button:hover {
    background: var(--primary-color);
    transform: scale(1.05);
}

#home-button img, #log-button img, #how-to-play-button img {
    width: 25px;
    height: 25px;
    object-fit: contain;
}

#logo {
    border-radius: 50%;
    object-fit: cover;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

#logo:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
    cursor: pointer;
}

.challenge-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 90;
    background-color: rgba(255, 255, 255, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-color);
    backdrop-filter: blur(5px);
}

#trivia-canvas {
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    overflow: auto;
}

#trivia-canvas .card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

#trivia-canvas .btn-success {
    background-color: #28a745;
    border-color: #28a745;
    color: white;
}

#trivia-canvas .btn-danger {
    background-color: #dc3545;
    border-color: #dc3545;
    color: white;
}

#dino-iframe {
    background-color: #ffffff;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.trivia-answer {
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 10px;
    margin: 5px 0;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.trivia-answer:hover {
    background: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
}

.challenge-modal-content {
    background-color: #e0e0e0;
    color: #0a162b;
}

.challange-card {
    height: auto;
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
    
    background-color: #e0e0e0;
    color: #062751;
    background-image: url(/static/img/Papertexture1.jpg), url(/static/img/Papertexture2.jpg);
    background-position: top left,top left;
    background-size: 300px,220px;
    background-repeat: repeat,repeat;
    background-blend-mode: overlay,overlay;
}

.challange-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.quit-button {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    min-width: 100px;
    padding: 8px 16px;
    font-size: 14px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.quit-button:hover {
    background: #c0392b;
    transform: translateX(-50%) scale(1.05);
}

.card-img-top {
    margin-top: 10px;
    width: 100%;
    height: 6vw;
    object-fit: contain;
    border-radius: 15px 15px 0 0;
}

.selected-row {
    font-weight: bold;
    background: rgba(52, 152, 219, 0.1) !important;
}

.clickable-row {
    cursor: pointer;
    transition: all 0.3s ease;
}

.clickable-row:hover {
    background: rgba(52, 152, 219, 0.05);
}

/* Progress bars */
.progress {
    background: var(--border-color);
    height: 20px;
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.progress-stacked {
    background: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

/* Airport display */
#airport-display {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 20px;
    margin: 20px auto;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

#airport-display h1 {
    color: var(--text-color);
    font-size: 2.5rem;
    font-weight: 700;
}

#airport-display h5 {
    color: var(--text-muted);
    font-size: 1.2rem;
}

#airport-display h6 {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Flight results table */
.table {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.table thead th {
    background: var(--primary-color);
    color: #ffffff;
    font-weight: 500;
    border-bottom: 2px solid rgba(255,255,255,0.1);
}

.table tbody td {
    color: var(--text-color);
    border-color: var(--border-color);
}

/* Input group */
.input-group {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 5px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.form-control {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.form-control:focus {
    background: var(--card-bg);
    border-color: var(--primary-color);
    color: var(--text-color);
    box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
}

/* Spinners */
.spinner-border, .spinner-grow {
    color: var(--primary-color);
}

/* Modal styling */
.modal-content {
    background: var(--card-bg);
    color: var(--text-color);
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
}

/* Offcanvas */
.offcanvas {
    background: var(--card-bg);
    color: var(--text-color);
}

.offcanvas-header {
    border-bottom: 1px solid var(--border-color);
}

.accordion {
    background: transparent;
}

.accordion-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    margin-bottom: 5px;
    border-radius: 8px;
}

.accordion-button {
    background: var(--card-bg);
    color: var(--text-color);
}

.accordion-button:not(.collapsed) {
    background: var(--primary-color);
    color: #ffffff;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--border-color);
}

.accordion-body {
    background: var(--card-bg);
    color: var(--text-color);
}

/* Alert styling */
.alert {
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid var(--accent-color);
    color: var(--text-color);
}

.alert a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: bold;
}

.alert a:hover {
    text-decoration: underline;
}

/* Countdown badge */
.countdown-badge {
    background: var(--accent-color);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}