/* Color Variables */
:root {
	/* Theme Colors - Default theme (Blue-gray & Gold) */
	--color-background: #2C3E50;
	--color-text: #ffffff;
	--color-text-muted: #cccccc;
	--color-accent: #F1C40F;
	--color-card: #F1C40F;
	--color-card-border: #2C3E50;
	--color-card-back: #f0f0ff;
	--color-card-text: #333344;
	
	/* Status Colors */
	--color-correct: #4CAF50;
	--color-incorrect: #f44336;
	--color-gap-highlight: #708090CC;
	--color-gap-text: rgba(204, 204, 204, 0.9);
	--color-gap-border: rgba(255, 255, 255, 0.4);
	--color-feedback-square-border: #333344;
	--color-feedback-square-default: #708090;
	
	/* Shadow Colors */
	--shadow-card: 0 12px 16px rgba(0, 0, 0, 0.3);
	--shadow-share: 0 4px 8px rgba(0, 0, 0, 0.3);
	--shadow-theme: 0 2px 10px rgba(0, 0, 0, 0.2);
	
	/* Gradient Colors */
	--gradient-fade-start: rgba(44, 62, 80, 0);
	--gradient-header: linear-gradient(to bottom, var(--color-background) 80%, var(--gradient-fade-start));
	--gradient-footer: linear-gradient(to top, var(--color-background) 80%, var(--gradient-fade-start));
	
	/* Outline Colors */
	--color-outline: var(--color-accent);
}

/* Theme: Night Mode */
body.theme-night {
	--color-background: #1A1A1A;
	--color-text: #959595;
	--color-text-muted: #999999;
	--color-accent: #4B2D5C;  /* Soft purple, less harsh than bright colors */
	--color-card: #4B2D5C;
	--color-card-border: #1A1A1A;
	--color-card-back: #2A2A2A;
	--color-card-text: #959595;
	--gradient-fade-start: rgba(26, 26, 26, 0);
	--color-gap-highlight: rgba(43, 35, 47, 0.8);  /* Darker, more muted background */
	--color-gap-text: rgba(224, 224, 224, 0.7);    /* Slightly dimmed text */
	--color-gap-border: rgba(139, 109, 156, 0.4);  /* Muted purple border */
}

/* Theme: High Contrast */
body.theme-high-contrast {
	--color-background: #000000;
	--color-text: #FFFFFF;
	--color-text-muted: #DDDDDD;
	--color-accent: #FFFF00;  /* Pure yellow for maximum contrast */
	--color-card: #FFFF00;
	--color-card-border: #000000;
	--color-card-back: #FFFFFF;
	--color-card-text: #000000;
	--color-year-text: #000000;  /* Black text for the year section */
	--color-gap-highlight: #FFFFFF;  /* Solid white for high contrast */
	--color-gap-text: #FFFFFF;  /* Solid white text */
	--color-gap-border: #FFFF00;  /* Solid yellow border */
	--gradient-fade-start: rgba(0, 0, 0, 0);
}

/* Theme: Deep Sea (Deep teal & Coral) */
body.theme-deep-sea {
	--color-background: #1B4B5A;
	--color-text: #FFFFFF;
	--color-text-muted: #B8C9CE;
	--color-accent: #FF7F50;  /* Coral */
	--color-card: #FF7F50;
	--color-card-border: #1B4B5A;
	--color-card-back: #f0f0ff;
	--color-card-text: #333344;
	--gradient-fade-start: rgba(27, 75, 90, 0);
}

/* Theme: Forest Night (Deep green & Amber) */
body.theme-forest {
	--color-background: #2D3B32;
	--color-text: #FFFFFF;
	--color-text-muted: #B8C4BA;
	--color-accent: #FFA726;  /* Warm amber */
	--color-card: #FFA726;
	--color-card-border: #2D3B32;
	--color-card-back: #f0f0ff;
	--color-card-text: #333344;
	--gradient-fade-start: rgba(45, 59, 50, 0);
}

* {
	box-sizing: border-box; /* Consistent box model */
}

body {
	background: var(--color-background);
	color: var(--color-text);
	font-family: Helvetica, Arial, sans-serif;
	margin: 0;
	padding: 0;
}

body::before { /* create a visible time line on the page */
	content: "";
	position: fixed;
	top: 0;
	bottom: 0;
	left: calc(50vw - 170px); /* place the line under the date of cards */
	width: 2px; /* Thickness of the line */
	height:100%;
	background:var(--color-accent); /* Color of the line */
	z-index: 10; /* Ensure the line is below the cards */
	pointer-events: none; /* Prevent the line from interfering with interactions */
	opacity: 0; /* Initially hidden */
	animation: fadeIn 2.5s 2s forwards; /* 2s delay before fade-in */
}

@keyframes fadeIn {
	0% {
		opacity: 0; /* Hidden */
	}
	100% {
		opacity: 1; /* Fully visible */
	}
}

header {
	position: fixed;
	background: linear-gradient(to bottom, var(--color-background) 80%, rgba(0, 0, 0, 0));
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	padding-bottom: 20px;
}

footer {
	position: fixed;
	background: linear-gradient(to top, var(--color-background) 80%, rgba(0, 0, 0, 0));
	bottom: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	text-align: center;
	font-size: 12px;
	padding-top: 20px;
}

.footer-links {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	margin: 0 auto;
}

.footer-links p {
	margin: 0;
	display: inline-flex;
	align-items: center;
	gap: 4px;
}

h1 {
	margin: 0;
	font-size: 18px;
	padding: 5px;
}

a, .accent {
	color: var(--color-accent);
	text-decoration: none;
}

#dateDisplay {
	display: flex;
	color:var(--color-text);
	justify-content: center;	
	margin-top: -26px;
	text-transform: capitalize;
	letter-spacing: 1px;
	font-size: 18px;
	font-weight:bold;
}

#subtitle {
	display: flex; /* hiding this for now, change to flex to display */
	color:var(--color-text);
	justify-content: center;	
	text-transform: capitalize;
	letter-spacing: 1.4px;
	font-size: 10px;
	text-transform: uppercase;
}

#status {
	font-size: 13px;
	text-align: center;
	margin-top: 4px;
	margin-bottom: 4px;
	height: 40px;
	color:var(--color-text-muted);
}
#status strong {
	color:var(--color-text);
}

/* Events Container */
#eventsContainer {
	display: flex;
	flex-direction: column; /* Stack items vertically */
	justify-content: center; /* Align items from the top down */
	min-height: 100vh; /* Ensure it fills the viewport initially */	
	align-items: center; /* Center the cards horizontally */
	padding: 50px 16px; /* Adjust padding to accommodate header/footer heights */
	gap: 0; /* Uniform spacing between cards */
}

.card {
	position: fixed;
	top: 50vh;
	left: 50%;
	transform: translate(-50%, -50%) rotateY(0deg);
	z-index: 20;
	transition: 
		transform 0.6s ease, 
		width 0.6s ease, 
		height 0.6s ease, 
		box-shadow 0.6s ease,
		margin 0.6s ease,
		opacity 0.6s ease;
	opacity: 1;
	width: 280px;
	height: 150px;
	background-color: var(--color-card);
	border: 2px solid var(--color-accent);
	border-radius: 8px;
	box-shadow: var(--shadow-card);
	transform-style: preserve-3d;
	margin: 8px 0;
	cursor: pointer;
	color: var(--color-card-text);
}

.card .front,
.card .back {
	position: absolute;
	width: 100%;
	height: 100%;
	backface-visibility: hidden;
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 10px;
}

.card.visible {
	opacity: 1;
}

.card.lowering {
	margin-left: -78px;
	box-shadow: none;
	transform: translate(-50%, -50%) rotateY(180deg);
	height: 120px;
	width: 224px;
	border-color: var(--color-background);
	background-color: var(--color-card-back);
}

.card.placed {
	position: relative;
	transform: rotateY(180deg);
	z-index: 10;
	top: auto;
	left: -78px;
	transition: box-shadow 0.6s ease, transform 0.6s ease, width 0.6s ease, height 0.6s ease;
	box-shadow: none;    
	height: 121px;
	width: 224px;    
	cursor: pointer;
	border-color: var(--color-card-back);
	background-color: var(--color-card-back);
}

/* Front and Back Styling */
.card .front {
	position: absolute;
	width: 100%;
	height: 100%;
	backface-visibility: hidden;
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 10px;
	color: var(--color-card-text);
}

.card .back {
	position: absolute;
	width: 100%;
	height: 100%;
	backface-visibility: hidden;
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 10px;
	transform: rotateY(180deg);
	background-color: var(--color-card-back);
	border-radius: 8px;
	color: var(--color-text);
}

/* Year Styling */
.card .year {
	display: block;
	font-weight: bold;
	color: var(--color-year-text, var(--color-text));  /* Use year text color if defined, fall back to regular text color */
	position: absolute;
	margin-left: -182px;
	transform: rotate(270deg) scale(0.8);
	background-color: var(--color-accent);
	padding: 8px 4px;
	text-align: center;
	border-radius: 8px 8px 0 0;
	font-size: 30px;
	width: 152px;
	border: 1px solid var(--color-accent);
}

/* Description Styling */
.card .description {
	color: var(--color-card-text);
	line-height: 1.2;
	text-align: left;
	display: flex;
	align-items: center;
	width: 100%;
	height: 100%;
	padding: 0 10px;
	font-size: 15px;
	line-height: 1.3;
}

.card.placed .description, .card.lowering .description {
	padding-left: 45px;
	color: var(--color-card-text);
	font-size: 11px;
}

.card.incorrect {
	border: 3px solid var(--color-incorrect);
}

/* probably not going to use this */
.card.corrected {
	transition: all 0.5s ease;
	transform: scale(1.1);
}

.gap {
	margin:0; /* Match the space between cards */
	height:0;
	width: 224px;
	transition: height 0.5s ease; /* Smooth transition */	
	will-change: height; /* Suggest to the browser that the filter property may change */
}

.gap.highlight {
	position: relative;
	height: 120px;
	width: 224px;
	left: -78px;
	border: 2px dashed var(--color-gap-border);
	border-radius: 12px;
	box-sizing: border-box;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 8px 0;
	background: var(--color-gap-highlight);
	z-index: 15;
}

.gap.highlight::after {
	content: attr(data-text);
	transform: rotate(-90deg);
	font-size: 14px;
	letter-spacing: 1px;
	white-space: nowrap;
	position: absolute;
	margin-left: -184px;
	opacity: 0;
	color: var(--color-gap-text);
	animation: fadeIn 0.5s ease-in forwards;
}

/* High contrast specific gap styling */
body.theme-high-contrast .gap.highlight {
	border-style: solid;  /* Solid border instead of dashed for high contrast */
	border-width: 3px;    /* Thicker border for better visibility */
	background: #000000;  /* Solid black background */
}

body.theme-high-contrast .gap.highlight::after {
	color: #FFFF00;  /* Solid yellow text to match theme accent */
	opacity: 1;      /* Ensure full opacity */
}

#feedbackFooter {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 10px;
}

/* Feedback Squares */
#feedbackRow {
  display: flex;
  gap: 8px; /* Space between squares */
  margin: 0 auto; /* Center vertically and add spacing */
}

.feedback-square {
	width: 20px;
	height: 20px;
	background-color: var(--color-feedback-square-default);
	border-radius: 4px;
	border: 1px solid var(--color-feedback-square-border);
}

/* Green for correct placement */
.feedback-square.correct {
	background-color: var(--color-correct);
}

/* Red for incorrect placement */
.feedback-square.incorrect {
	background-color: var(--color-incorrect);
}

/* Hidden elements */
.hidden {
	display: none !important;
}

/* Share Link Styling */
#shareLink {
	text-decoration: none;
	color: #007bff;
	font-size: 14px;
}

/* Pop-Up Modal */
#popup {
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	background-color: var(--color-card-back);
	border: 1px solid var(--color-accent);
	border-radius: 8px;
	padding: 20px;
	box-shadow: var(--shadow-card);
	z-index: 1000;
	text-align: center;
	min-width: 280px;
}

#popup .popup-content p {
	color: var(--color-card-text);
	font-size: 18px;
	margin: 15px 0;
	text-align: center;
}

#popup h2 {
	margin-top: 0;
	color: var(--color-card-text);
	font-size: 24px;
}

/* User's Score Section - Prominent (matches WikiLetters) */
#popup-score-section {
	margin: 12px 0 20px 0;
}

#popup-score-label {
	color: #888;
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 1.5px;
	margin-bottom: 6px;
}

#popup-score-value {
	color: var(--color-card-text);
	font-size: 36px;
	font-weight: bold;
	margin: 3px 0;
}

/* Average Score Section - Secondary */
#average-score-section {
	margin: 0 0 15px 0;
}

.average-score-text {
	color: #888;
	font-size: 13px;
	margin: 0;
}

.average-score-text strong {
	color: #555;
	font-size: 14px;
	font-weight: normal;
}

#popup .popup-actions {
	margin-top: 20px;
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 10px;
}

#popup .popup-actions a {
	background: var(--color-card);
	color: var(--color-card-text);
	text-decoration: none;
	padding: 8px 16px;
	border: 1px solid var(--color-accent);
	border-radius: 4px;
	transition: background-color 0.2s ease;
}

#popup .popup-actions a:hover {
	background-color: var(--color-accent);
	color: var(--color-card-text);
}

#popup .popup-actions button {
	background: none;
	border: none;
	color: var(--color-card-text);
	font-size: 24px;
	cursor: pointer;
	padding: 0px;
	position: absolute;
	top: 0px;
	right: 5px;
}

#popup .popup-actions button:hover {
	color: var(--color-accent);
}

#shareIcon {
    background-color: var(--color-card-text);
    padding: 4px;
    border-radius: 50%;
    text-align: center;
    box-shadow: var(--shadow-share);
    cursor: pointer;
    transition: opacity 0.3s ease-in-out, transform 0.2s ease-in-out;
    opacity: 0.8;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    position: absolute;
    margin-left: -30px;
    margin-top: -2px;
}

#shareIcon:hover {
    opacity: 1;
    transform: scale(1.1);
}

#shareIcon svg {
    width: 24px;
    height: 24px;
    fill: var(--color-text);
}

/* Pop animation for feedback squares and cards */
@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

@keyframes popCard {
    0% { transform: rotateY(180deg) scale(1); }
    50% { transform: rotateY(180deg) scale(1.1); }
    100% { transform: rotateY(180deg) scale(1); }
}

.card.pop {
	animation: popCard 0.8s ease both;
}

.feedback-square.pop {
	animation: pop 0.8s ease both;
}

/* Add shake animation for invalid placement */
.card.cannot-place {
    animation: shake 0.5s ease both;
}

@keyframes shake {
    10%, 90% { transform: translate(-50%, -50%) rotateY(0deg) translateX(-1px); }
    20%, 80% { transform: translate(-50%, -50%) rotateY(0deg) translateX(2px); }
    30%, 50%, 70% { transform: translate(-50%, -50%) rotateY(0deg) translateX(-4px); }
    40%, 60% { transform: translate(-50%, -50%) rotateY(0deg) translateX(4px); }
}

/* Theme Switcher Styles */
.theme-toggle {
	background: none;
	border: none;
	cursor: pointer;
	padding: 8px;
	margin: 0;
	color: inherit;
	-webkit-tap-highlight-color: transparent;
	position: relative;
	z-index: 1002;
}

.theme-toggle:hover {
	opacity: 0.8;
}

.theme-toggle:active {
	opacity: 0.6;
}

.theme-options {
	position: fixed;
	background: var(--color-background);
	border: 1px solid var(--color-accent);
	border-radius: 8px;
	padding: 8px;
	display: flex;
	flex-direction: column;
	gap: 8px;
	z-index: 1003;
	box-shadow: var(--shadow-theme);
	opacity: 1;
	visibility: visible;
	transform-origin: bottom center;
	transition: opacity 0.3s ease, visibility 0.3s ease;
}

.theme-options.hidden {
	display: none;
	opacity: 0;
	visibility: hidden;
}

.theme-button {
	width: 32px;
	height: 32px;
	border: none;
	border-radius: 50%;
	cursor: pointer;
	padding: 0;
	margin: 0;
	transition: transform 0.2s ease;
	-webkit-tap-highlight-color: transparent;
}

.theme-button:hover,
.theme-button:focus {
	transform: scale(1.1);
	outline: 2px solid var(--color-accent);
	outline-offset: 2px;
}

.theme-button[data-theme="default"] { background: linear-gradient(45deg, #2C3E50 50%, #F1C40F 50%); }
.theme-button[data-theme="night"] { background: linear-gradient(45deg, #1A1A1A 50%, #8B6D9C 50%); }
.theme-button[data-theme="high-contrast"] { background: linear-gradient(45deg, #000000 50%, #FFFF00 50%); }
.theme-button[data-theme="deep-sea"] { background: linear-gradient(45deg, #1B4B5A 50%, #FF7F50 50%); }
.theme-button[data-theme="forest"] { background: linear-gradient(45deg, #2D3B32 50%, #FFA726 50%); }
.theme-button[data-theme="navy-rose"] { background: linear-gradient(45deg, #1A4B84 50%, #FF9EAA 50%); }

.theme-preview {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    transition: transform 0.2s ease;
    background: linear-gradient(45deg, var(--color-background) 50%, var(--color-accent) 50%);
    border: 1px solid var(--color-text-muted);
}

.theme-toggle:hover .theme-preview {
    transform: scale(1.1);
}

.theme-toggle:active .theme-preview {
    transform: scale(0.9);
}

/* Game Navigation Tabs */
.game-tabs {
    display: flex;
    justify-content: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid var(--color-card-text);
    gap: 0;
    background: transparent;
}

.game-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 8px;
    text-decoration: none;
    color: var(--color-card-text) !important;
    background: var(--color-card-back) !important;
    transition: all 0.2s ease;
    position: relative;
    border: 1px solid var(--color-card-text);
    border-right: none;
    opacity: 0.6;
}

.game-tab:first-child {
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.game-tab:last-child {
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
    border-right: 1px solid var(--color-card-text);
}

.game-tab-active {
    background: var(--color-accent) !important;
    color: var(--color-card-text) !important;
    font-weight: 600;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
    cursor: default;
    opacity: 1;
}

.game-tab:not(.game-tab-active):hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.tab-emoji {
    font-size: 20px;
    margin-bottom: 4px;
}

.tab-name {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}