:root {
    --primary-color: #2c3e50; 
    --accent-color: #2ecc71; 
    --accent-hover: #27ae60;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --white: #ffffff;
    --input-border: #d1d5db;
    --particle-bg: #1a2530; 
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    margin: 0;
    overflow: hidden;
}

.auth-bg {
    background-color: #f3f4f6;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.main-wrapper {
    display: flex;
    width: 90vw;
    height: 85vh;
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.image-section {
    flex: 1.2;
    position: relative;
    background-color: var(--particle-bg); 
    overflow: hidden;
}

#particles-js canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.1), rgba(0,0,0,0.4));
    z-index: 1;
}

.content-wrapper {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: 60px;
    color: white;
    z-index: 2; 
}

.brand {
    font-size: 1.6rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.slogan h1 {
    font-size: 3rem;
    margin: 0 0 10px;
}

.slogan p {
    font-size: 1rem;
    opacity: 0.9;
    max-width: 400px;
}

.form-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 60px;
    background-color: white;
}

.form-content {
    max-width: 420px;
}

.welcome-text h2 {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin: 0 0 5px;
}

.welcome-text p {
    color: var(--text-muted);
    margin-bottom: 40px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-main);
    font-size: 0.9rem;
}

.input-wrapper {
    position: relative;
}

.prefix-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    font-size: 1rem;
    box-sizing: border-box;
    transition: 0.3s;
}

input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.15);
}

.form-footer {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    font-size: 0.9rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
}

.forgot {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    background: #1a2530; /* Darker dark hover */
}

.footer-note {
    margin-top: 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.auth-footer-note {
    margin-top: 40px;         
    display: flex;             
    justify-content: center;  
    align-items: center;      
    gap: 10px;                
    color: var(--text-muted);  
    font-size: 0.85rem;        
    text-align: center;
}

.auth-footer-note i {
    font-size: 1rem;           
    opacity: 0.8;
}


.auth-footer-note:hover {
    color: var(--primary-color);
    transition: color 0.3s ease;
}


@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideLeft { from { transform: translateX(50px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideRight { from { transform: translateX(-50px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes popIn { 0% { transform: scale(0.9); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }

.anim-fade-in { animation: fadeIn 1s forwards; }
.anim-slide-left { animation: slideLeft 0.8s ease forwards; }
.anim-slide-right { animation: slideRight 0.8s ease forwards; }
.anim-pop-in { animation: popIn 0.6s ease forwards; }

.anim-fade-delay-1 { animation: fadeIn 1s forwards 0.3s; opacity: 0; }
.anim-fade-delay-2 { animation: fadeIn 1s forwards 0.6s; opacity: 0; }
.anim-fade-delay-3 { animation: fadeIn 1s forwards 0.9s; opacity: 0; }

@media (max-width: 1024px) {
    .slogan h1 { font-size: 2rem; }
}

@media (max-width: 768px) {
    .image-section { display: none; }
    .form-section { padding: 40px; }
}