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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Neon Exam Countdown</title>
<link href="https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Orbitron:wght@400;500;600;700;800;900&display=swap" rel="stylesheet">
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
--neon-pink: #FF006E;
--neon-blue: #00D9FF;
--neon-purple: #8B39FF;
--neon-green: #39FF14;
--neon-yellow: #FFFF00;
--dark-bg: #0A0A0F;
}
body {
font-family: 'Space Grotesk', sans-serif;
background: var(--dark-bg);
min-height: 100vh;
color: #fff;
overflow-x: hidden;
position: relative;
}
/* Animated gradient background */
body::before {
content: '';
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background:
radial-gradient(circle at 20% 80%, rgba(255, 0, 110, 0.1) 0%, transparent 50%),
radial-gradient(circle at 80% 20%, rgba(0, 217, 255, 0.1) 0%, transparent 50%),
radial-gradient(circle at 40% 40%, rgba(139, 57, 255, 0.1) 0%, transparent 50%),
radial-gradient(circle at 90% 70%, rgba(57, 255, 20, 0.05) 0%, transparent 50%);
animation: gradientShift 15s ease infinite;
z-index: 0;
}
@keyframes gradientShift {
0%, 100% { transform: rotate(0deg) scale(1); }
33% { transform: rotate(120deg) scale(1.1); }
66% { transform: rotate(240deg) scale(1.05); }
}
/* Grid background */
body::after {
content: '';
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-image:
linear-gradient(rgba(0, 217, 255, 0.03) 1px, transparent 1px),
linear-gradient(90deg, rgba(0, 217, 255, 0.03) 1px, transparent 1px);
background-size: 50px 50px;
animation: gridMove 10s linear infinite;
z-index: 0;
}
@keyframes gridMove {
0% { transform: translate(0, 0); }
100% { transform: translate(50px, 50px); }
}
/* Enhanced particles */
.particles {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
overflow: hidden;
z-index: 1;
}
.particle {
position: absolute;
border-radius: 50%;
pointer-events: none;
}
.particle.orb {
width: 6px;
height: 6px;
background: radial-gradient(circle, var(--neon-blue) 0%, transparent 70%);
box-shadow: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue);
animation: floatOrb 20s infinite linear;
}
.particle.star {
width: 2px;
height: 2px;
background: white;
box-shadow: 0 0 6px white;
animation: twinkle 3s infinite;
}
@keyframes floatOrb {
from {
transform: translateY(100vh) translateX(0) scale(0);
opacity: 0;
}
10% {
opacity: 1;
transform: translateY(90vh) translateX(10px) scale(1);
}
90% {
opacity: 1;
transform: translateY(10vh) translateX(-10px) scale(1);
}
to {
transform: translateY(-100vh) translateX(100px) scale(0);
opacity: 0;
}
}
@keyframes twinkle {
0%, 100% { opacity: 0; transform: scale(0.5); }
50% { opacity: 1; transform: scale(1); }
}
.container {
max-width: 1400px;
margin: 0 auto;
padding: 2rem;
position: relative;
z-index: 2;
}
/* Enhanced header */
.header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 4rem;
padding: 2rem 0;
position: relative;
}
.header::after {
content: '';
position: absolute;
bottom: 0;
left: 50%;
transform: translateX(-50%);
width: 100%;
height: 1px;
background: linear-gradient(90deg,
transparent,
var(--neon-blue) 20%,
var(--neon-pink) 50%,
var(--neon-purple) 80%,
transparent);
animation: lineGlow 3s ease-in-out infinite;
}
@keyframes lineGlow {
0%, 100% { opacity: 0.3; }
50% { opacity: 1; }
}
h1 {
font-family: 'Orbitron', monospace;
font-size: 3.5rem;
font-weight: 900;
text-transform: uppercase;
letter-spacing: 3px;
background: linear-gradient(135deg,
var(--neon-blue) 0%,
var(--neon-pink) 25%,
var(--neon-purple) 50%,
var(--neon-green) 75%,
var(--neon-blue) 100%);
background-size: 300% 300%;
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
animation: gradientFlow 4s ease infinite;
filter: drop-shadow(0 0 30px rgba(0, 217, 255, 0.5))
drop-shadow(0 0 60px rgba(255, 0, 110, 0.3));
}
@keyframes gradientFlow {
0% { background-position: 0% 50%; }
50% { background-position: 100% 50%; }
100% { background-position: 0% 50%; }
}
/* Enhanced settings button */
.settings-btn {
width: 60px;
height: 60px;
background: linear-gradient(135deg,
rgba(0, 217, 255, 0.1) 0%,
rgba(255, 0, 110, 0.1) 100%);
backdrop-filter: blur(20px);
border: 2px solid transparent;
background-origin: border-box;
background-clip: padding-box, border-box;
border-image: linear-gradient(135deg, var(--neon-blue), var(--neon-pink)) 1;
border-radius: 16px;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
position: relative;
overflow: hidden;
}
.settings-btn::before {
content: '';
position: absolute;
top: 50%;
left: 50%;
width: 100%;
height: 100%;
background: radial-gradient(circle, var(--neon-blue) 0%, transparent 70%);
transform: translate(-50%, -50%) scale(0);
transition: transform 0.5s ease;
z-index: -1;
}
.settings-btn:hover {
transform: scale(1.1) rotate(90deg);
box-shadow:
0 0 30px rgba(0, 217, 255, 0.6),
0 0 60px rgba(255, 0, 110, 0.4),
inset 0 0 20px rgba(0, 217, 255, 0.2);
}
.settings-btn:hover::before {
transform: translate(-50%, -50%) scale(2);
}
.settings-btn svg {
width: 28px;
height: 28px;
fill: url(#iconGradient);
filter: drop-shadow(0 0 10px var(--neon-blue));
transition: transform 0.4s ease;
}
.settings-btn:hover svg {
transform: rotate(-90deg);
}
/* Enhanced exam grid */
.exams-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
gap: 2.5rem;
padding: 2rem 0;
}
/* Ultra enhanced exam cards */
.exam-card {
background: linear-gradient(135deg,
rgba(0, 217, 255, 0.05) 0%,
rgba(255, 0, 110, 0.05) 100%);
backdrop-filter: blur(40px) saturate(150%);
border: 1px solid transparent;
background-origin: border-box;
background-clip: padding-box, border-box;
border-image: linear-gradient(135deg,
rgba(0, 217, 255, 0.3),
rgba(255, 0, 110, 0.3)) 1;
border-radius: 24px;
padding: 2.5rem;
text-align: center;
transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
position: relative;
overflow: hidden;
transform-style: preserve-3d;
perspective: 1000px;
}
.exam-card::before {
content: '';
position: absolute;
top: -50%;
left: -50%;
width: 200%;
height: 200%;
background: radial-gradient(circle,
rgba(0, 217, 255, 0.1) 0%,
transparent 40%);
animation: cardPulse 4s ease-in-out infinite;
pointer-events: none;
}
.exam-card::after {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: linear-gradient(105deg,
transparent 40%,
rgba(255, 255, 255, 0.05) 45%,
rgba(255, 255, 255, 0.1) 50%,
rgba(255, 255, 255, 0.05) 55%,
transparent 60%);
transform: translateX(-100%);
transition: transform 0.6s;
pointer-events: none;
}
@keyframes cardPulse {
0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.5; }
50% { transform: scale(1.2) rotate(180deg); opacity: 0.8; }
}
.exam-card:hover {
transform: translateY(-10px) rotateX(5deg) scale(1.02);
box-shadow:
0 20px 40px rgba(0, 217, 255, 0.3),
0 40px 80px rgba(255, 0, 110, 0.2),
inset 0 0 30px rgba(0, 217, 255, 0.1);
border-image: linear-gradient(135deg,
var(--neon-blue),
var(--neon-pink)) 1;
}
.exam-card:hover::after {
transform: translateX(100%);
}
.exam-name {
font-size: 1.8rem;
font-weight: 700;
margin-bottom: 1.5rem;
background: linear-gradient(135deg, #fff 0%, #00D9FF 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
text-transform: uppercase;
letter-spacing: 2px;
filter: drop-shadow(0 2px 10px rgba(0, 217, 255, 0.5));
}
.countdown-wrapper {
display: flex;
justify-content: center;
gap: 1.5rem;
margin-bottom: 2rem;
}
.countdown-item {
display: flex;
flex-direction: column;
}
.countdown-number {
font-family: 'Orbitron', monospace;
font-size: 3rem;
font-weight: 900;
color: var(--neon-blue);
text-shadow: 0 0 20px var(--neon-blue);
line-height: 1;
}
.countdown-label {
font-size: 0.8rem;
color: rgba(255, 255, 255, 0.7);
text-transform: uppercase;
letter-spacing: 2px;
font-weight: 300;
}
.exam-date {
font-size: 0.95rem;
color: rgba(0, 217, 255, 0.7);
margin-top: 1.5rem;
padding: 0.5rem 1rem;
background: rgba(0, 217, 255, 0.1);
border-radius: 20px;
display: inline-block;
border: 1px solid rgba(0, 217, 255, 0.3);
}
/* Enhanced delete button */
.delete-btn {
position: absolute;
top: 1.5rem;
right: 1.5rem;
width: 36px;
height: 36px;
background: linear-gradient(135deg,
rgba(255, 0, 110, 0.2) 0%,
rgba(255, 0, 0, 0.2) 100%);
border: 2px solid rgba(255, 0, 110, 0.5);
border-radius: 12px;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
transition: all 0.3s ease;
opacity: 0;
transform: scale(0.8);
}
.exam-card:hover .delete-btn {
opacity: 1;
transform: scale(1);
}
.delete-btn:hover {
background: linear-gradient(135deg,
rgba(255, 0, 110, 0.4) 0%,
rgba(255, 0, 0, 0.4) 100%);
transform: scale(1.2) rotate(90deg);
box-shadow: 0 0 20px rgba(255, 0, 110, 0.6);
}
/* Enhanced modal */
.modal {
display: none;
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.9);
backdrop-filter: blur(10px);
z-index: 1000;
align-items: center;
justify-content: center;
padding: 2rem;
animation: modalFadeIn 0.3s ease;
}
@keyframes modalFadeIn {
from { opacity: 0; }
to { opacity: 1; }
}
.modal.active {
display: flex;
}
.modal-content {
background: linear-gradient(135deg,
rgba(20, 20, 30, 0.98) 0%,
rgba(30, 20, 40, 0.98) 100%);
backdrop-filter: blur(40px) saturate(150%);
border: 2px solid transparent;
background-origin: border-box;
background-clip: padding-box, border-box;
border-image: linear-gradient(135deg, var(--neon-blue), var(--neon-pink)) 1;
border-radius: 30px;
padding: 3rem;
width: 100%;
max-width: 500px;
box-shadow:
0 30px 60px rgba(0, 0, 0, 0.5),
0 0 100px rgba(0, 217, 255, 0.2),
inset 0 0 30px rgba(0, 217, 255, 0.05);
animation: modalSlideIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
position: relative;
overflow: hidden;
}
.modal-content::before {
content: '';
position: absolute;
top: -50%;
left: -50%;
width: 200%;
height: 200%;
background: radial-gradient(circle,
rgba(0, 217, 255, 0.1) 0%,
transparent 40%);
animation: modalGlow 4s ease-in-out infinite;
}
@keyframes modalSlideIn {
from { transform: translateY(-50px) scale(0.9); opacity: 0; }
to { transform: translateY(0) scale(1); opacity: 1; }
}
@keyframes modalGlow {
0%, 100% { transform: rotate(0deg); }
50% { transform: rotate(180deg); }
}
.modal-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 2.5rem;
position: relative;
z-index: 1;
}
.modal-title {
font-size: 2rem;
font-weight: 700;
background: linear-gradient(135deg, var(--neon-blue) 0%, var(--neon-pink) 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
text-transform: uppercase;
letter-spacing: 2px;
}
.close-btn {
width: 40px;
height: 40px;
background: rgba(255, 0, 110, 0.1);
border: 2px solid rgba(255, 0, 110, 0.3);
border-radius: 12px;
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
transition: all 0.3s ease;
}
.close-btn:hover {
transform: rotate(90deg) scale(1.1);
background: rgba(255, 0, 110, 0.2);
box-shadow: 0 0 20px rgba(255, 0, 110, 0.5);
}
/* Enhanced form */
.form-group {
margin-bottom: 2rem;
position: relative;
z-index: 1;
}
.form-group label {
display: block;
margin-bottom: 0.75rem;
font-size: 0.95rem;
color: var(--neon-blue);
text-transform: uppercase;
letter-spacing: 2px;
font-weight: 500;
}
.form-group input {
width: 100%;
padding: 1.2rem;
background: rgba(0, 217, 255, 0.05);
border: 2px solid rgba(0, 217, 255, 0.2);
border-radius: 12px;
color: #fff;
font-size: 1.1rem;
transition: all 0.3s ease;
font-family: 'Space Grotesk', sans-serif;
}
.form-group input:focus {
outline: none;
border-color: var(--neon-blue);
background: rgba(0, 217, 255, 0.1);
box-shadow:
0 0 20px rgba(0, 217, 255, 0.3),
inset 0 0 10px rgba(0, 217, 255, 0.1);
}
.form-group input::placeholder {
color: rgba(255, 255, 255, 0.3);
}
/* Enhanced add button */
.add-btn {
width: 100%;
padding: 1.5rem;
background: linear-gradient(135deg, var(--neon-blue) 0%, var(--neon-pink) 100%);
border: none;
border-radius: 16px;
color: #fff;
font-size: 1.2rem;
font-weight: 700;
cursor: pointer;
transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
text-transform: uppercase;
letter-spacing: 2px;
position: relative;
overflow: hidden;
z-index: 1;
}
.add-btn::before {
content: '';
position: absolute;
top: 50%;
left: 50%;
width: 0;
height: 0;
background: radial-gradient(circle,
rgba(255, 255, 255, 0.3) 0%,
transparent 70%);
transform: translate(-50%, -50%);
transition: width 0.6s, height 0.6s;
}
.add-btn:hover {
transform: translateY(-3px) scale(1.02);
box-shadow:
0 10px 30px rgba(0, 217, 255, 0.5),
0 20px 60px rgba(255, 0, 110, 0.3);
}
.add-btn:hover::before {
width: 300px;
height: 300px;
}
/* Enhanced empty state */
.empty-state {
text-align: center;
padding: 6rem 2rem;
position: relative;
}
.empty-state::before {
content: '📚';
font-size: 6rem;
display: block;
margin-bottom: 2rem;
animation: bounce 2s ease-in-out infinite;
}
@keyframes bounce {
0%, 100% { transform: translateY(0); }
50% { transform: translateY(-20px); }
}
.empty-state p {
font-size: 1.4rem;
background: linear-gradient(135deg,
rgba(255, 255, 255, 0.8) 0%,
rgba(0, 217, 255, 0.8) 100%);
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
margin-bottom: 2rem;
font-weight: 500;
}
/* Responsive */
@media (max-width: 768px) {
h1 { font-size: 2.5rem; }
.countdown-number { font-size: 2rem; }
.exams-grid { grid-template-columns: 1fr; }
.header { flex-direction: column; gap: 1rem; text-align: center;}
.modal-content { padding: 2rem; }
}
</style>
</head>
<body>
<svg width="0" height="0">
<defs>
<linearGradient id="iconGradient" x1="0%" y1="0%" x2="100%" y2="100%">
<stop offset="0%" style="stop-color:#00D9FF;stop-opacity:1" />
<stop offset="100%" style="stop-color:#FF006E;stop-opacity:1" />
</linearGradient>
</defs>
</svg>
<div class="particles" id="particles"></div>
<div class="container">
<div class="header">
<h1>Exam Countdown</h1>
<div class="settings-btn" id="openModalBtn">
<svg viewBox="0 0 24 24">
<path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm5 11h-4v4h-2v-4H7v-2h4V7h2v4h4v2z"/>
</svg>
</div>
</div>
<div class="exams-grid" id="examsGrid"></div>
<div class="empty-state" id="emptyState" style="display: none;">
<p>No exams scheduled yet. Click the + button to add your first exam!</p>
</div>
</div>
<div class="modal" id="modal">
<div class="modal-content">
<div class="modal-header">
<h2 class="modal-title">Add New Exam</h2>
<button class="close-btn" id="closeModalBtn">
<svg width="24" height="24" viewBox="0 0 24 24" fill="#FF006E">
<path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/>
</svg>
</button>
</div>
<form id="addExamForm">
<div class="form-group">
<label for="examName">Exam Name</label>
<input type="text" id="examName" required placeholder="e.g., Physics Final">
</div>
<div class="form-group">
<label for="examDate">Exam Date & Time</label>
<input type="datetime-local" id="examDate" required>
</div>
<button type="submit" class="add-btn">Add Exam</button>
</form>
</div>
</div>
<script type="module">
// Firebase SDK modules
import { initializeApp } from "https://www.gstatic.com/firebasejs/10.7.1/firebase-app.js";
import { getDatabase, ref, onValue, push, remove } from "https://www.gstatic.com/firebasejs/10.7.1/firebase-database.js";
// Your web app's Firebase configuration
const firebaseConfig = {
apiKey: "AIzaSyCBGYdGdPjYJiKsTMjVYZ9mf9F82ns7g4Q",
authDomain: "pikachu-rxppbp.firebaseapp.com",
databaseURL: "https://pikachu-rxppbp.firebaseio.com",
projectId: "pikachu-rxppbp",
storageBucket: "pikachu-rxppbp.appspot.com",
messagingSenderId: "241970333280",
appId: "1:241970333280:web:704e8930bd591c138d6505"
};
// Initialize Firebase and Database
const app = initializeApp(firebaseConfig);
const database = getDatabase(app);
const examsRef = ref(database, 'exams');
// DOM Element References
const elements = {
openModalBtn: document.getElementById('openModalBtn'),
closeModalBtn: document.getElementById('closeModalBtn'),
modal: document.getElementById('modal'),
addExamForm: document.getElementById('addExamForm'),
examNameInput: document.getElementById('examName'),
examDateInput: document.getElementById('examDate'),
examsGrid: document.getElementById('examsGrid'),
emptyState: document.getElementById('emptyState'),
particlesContainer: document.getElementById('particles')
};
let exams = []; // This will hold our exams from Firebase
// --- Enhanced Particle System ---
function createParticles() {
if (elements.particlesContainer.children.length > 0) return;
// Create orbs
for (let i = 0; i < 15; i++) {
const particle = document.createElement('div');
particle.classList.add('particle', 'orb');
particle.style.left = Math.random() * 100 + '%';
particle.style.animationDelay = Math.random() * 20 + 's';
particle.style.animationDuration = (15 + Math.random() * 10) + 's';
const colors = ['#00D9FF', '#FF006E', '#8B39FF', '#39FF14'];
const color = colors[Math.floor(Math.random() * colors.length)];
particle.style.background = `radial-gradient(circle, ${color} 0%, transparent 70%)`;
particle.style.boxShadow = `0 0 10px ${color}, 0 0 20px ${color}`;
elements.particlesContainer.appendChild(particle);
}
// Create stars
for (let i = 0; i < 30; i++) {
const star = document.createElement('div');
star.classList.add('particle', 'star');
star.style.left = Math.random() * 100 + '%';
star.style.top = Math.random() * 100 + '%';
star.style.animationDelay = Math.random() * 3 + 's';
elements.particlesContainer.appendChild(star);
}
}
// --- Modal & Form Logic ---
const openModal = () => elements.modal.classList.add('active');
const closeModal = () => {
elements.modal.classList.remove('active');
elements.addExamForm.reset();
};
const addExam = (event) => {
event.preventDefault();
const examIcons = ['📚', '📖', '✏️', '📝', '🎓', '📊', '🧮', '🔬', '💻', '🎨'];
const newExam = {
name: elements.examNameInput.value,
date: new Date(elements.examDateInput.value).getTime(),
icon: examIcons[Math.floor(Math.random() * examIcons.length)]
};
push(examsRef, newExam).catch(err => console.error("Failed to add exam:", err));
closeModal();
};
const deleteExam = (id) => {
if (!id) return;
remove(ref(database, `exams/${id}`)).catch(err => console.error("Failed to delete exam:", err));
};
// --- Rendering Logic ---
function getCountdown(targetDate) {
const now = new Date().getTime();
const distance = targetDate - now;
if (distance < 0) {
return { days: 0, hours: 0, minutes: 0, seconds: 0, isPast: true };
}
return {
days: Math.floor(distance / (1000 * 60 * 60 * 24)),
hours: Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60)),
minutes: Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60)),
seconds: Math.floor((distance % (1000 * 60)) / 1000),
isPast: false
};
}
function renderExams() {
if (exams.length === 0) {
elements.examsGrid.innerHTML = '';
elements.emptyState.style.display = 'block';
return;
}
elements.emptyState.style.display = 'none';
// Sort by date so the soonest is first
const sortedExams = [...exams].sort((a, b) => a.date - b.date);
elements.examsGrid.innerHTML = sortedExams.map(exam => {
const countdown = getCountdown(exam.date);
const examDate = new Date(exam.date);
let content;
if(countdown.isPast){
content = `<div style="font-size: 2rem; color: var(--neon-pink); font-family: 'Orbitron', monospace;">EXAM COMPLETE</div>`;
} else {
content = `
<div class="countdown-wrapper">
<div class="countdown-item">
<div class="countdown-number">${String(countdown.days).padStart(2, '0')}</div>
<div class="countdown-label">Days</div>
</div>
<div class="countdown-item">
<div class="countdown-number">${String(countdown.hours).padStart(2, '0')}</div>
<div class="countdown-label">Hours</div>
</div>
<div class="countdown-item">
<div class="countdown-number">${String(countdown.minutes).padStart(2, '0')}</div>
<div class="countdown-label">Minutes</div>
</div>
<div class="countdown-item">
<div class="countdown-number">${String(countdown.seconds).padStart(2, '0')}</div>
<div class="countdown-label">Seconds</div>
</div>
</div>`;
}
return `
<div class="exam-card" data-id="${exam.id}">
<div class="delete-btn" data-delete-id="${exam.id}">
<svg width="20" height="20" viewBox="0 0 24 24" fill="#fff" style="pointer-events: none;">
<path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/>
</svg>
</div>
<div class="exam-name">${exam.icon} ${exam.name}</div>
${content}
<div class="exam-date">
📅 ${examDate.toLocaleDateString('en-US', {
weekday: 'long', month: 'long', day: 'numeric',
hour: '2-digit', minute: '2-digit'
})}
</div>
</div>
`;
}).join('');
}
// --- Event Delegation for Delete Buttons ---
elements.examsGrid.addEventListener('click', (event) => {
if(event.target.matches('.delete-btn')) {
const idToDelete = event.target.dataset.deleteId;
deleteExam(idToDelete);
}
});
// --- App Initialization ---
createParticles();
elements.examDateInput.min = new Date().toISOString().slice(0, 16);
// Event Listeners for Modal
elements.openModalBtn.addEventListener('click', openModal);
elements.closeModalBtn.addEventListener('click', closeModal);
elements.addExamForm.addEventListener('submit', addExam);
window.addEventListener('click', e => { if (e.target === elements.modal) closeModal(); });
// Firebase real-time data listener
onValue(examsRef, (snapshot) => {
const data = snapshot.val();
// Convert Firebase object to an array and store it
exams = data ? Object.entries(data).map(([id, value]) => ({ id, ...value })) : [];
// Do an initial render as soon as data is received
renderExams();
}, (error) => {
console.error("Firebase read failed:", error);
alert("Could not connect to the database. Check console for errors and verify database rules.");
});
// Set an interval to update the countdowns every second
// This makes the timers tick without re-fetching from Firebase
setInterval(renderExams, 1000);
</script>
</body>
</html> |