:root {
    --theme-pink: #ff4d9e;
    --theme-purple: #9d4dff;
    --theme-light-blue: #4dc3ff;
    --theme-dark-hover: #c7327a;
    --text-light: #ffffff;
    --bg-dark: #f0e6ff;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: url(../image/bg.jpeg) no-repeat center center fixed;
    background-size: cover;
    position: relative;
    min-height: 100vh;
    overflow: hidden;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.4));
    z-index: 0;
}

#particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.scene {
    perspective: 2000px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    position: relative;
    z-index: 2;
}

.login-container {
    animation: flipIn 1.2s ease-in-out;
}

.login-card {
    background: rgba(255, 255, 255, 0.7);
    border-radius: 30px;
    padding: 60px 30px;
    width: 400px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

@keyframes flipIn {
    0% {
        transform: rotateY(-90deg);
        opacity: 0;
    }
    100% {
        transform: rotateY(0deg);
        opacity: 1;
    }
}

.logo img {
    width: 80%;
    margin: 0 auto 20px;
    display: block;
}

.login-header {
    text-align: center;
}

.login-header h1 {
    font-size: 2.4rem;
    background: linear-gradient(to right, var(--theme-pink), var(--theme-purple), var(--theme-light-blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 5px;
}

.login-header p {
    font-weight: 500;
    font-size: 1rem;
    color: #555;
    margin-bottom: 25px;
}

.form-group {
    position: relative;
    margin-bottom: 25px;
}

.form-input {
    width: 100%;
    padding: 18px 20px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    font-size: 1.05rem;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border: 2px solid var(--theme-light-blue);
    background: #fff;
    box-shadow: 0 0 10px rgba(77, 195, 255, 0.3);
}

.form-label {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    font-size: 1rem;
    color: #888;
    pointer-events: none;
    transition: all 0.3s ease;
    background: rgba(255,255,255,0.9);
    padding: 0 6px;
    border-radius: 6px;
}

.form-input:focus + .form-label,
.form-input:not(:placeholder-shown) + .form-label {
    top: -10px;
    left: 15px;
    font-size: 0.8rem;
    color: var(--theme-purple);
    font-weight: 600;
}

.login-btn {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 12px;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #fff;
    background: var(--theme-purple);
    position: relative;
    overflow: hidden;
    z-index: 1;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 15px rgba(157, 77, 255, 0.3);
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: 0.5s;
    z-index: -1;
}

.login-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(157, 77, 255, 0.5);
}

.login-btn:hover::before {
    left: 100%;
}

.login-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, 
        var(--theme-pink), 
        var(--theme-purple), 
        var(--theme-light-blue));
    background-size: 200% 100%;
    z-index: -2;
    transition: background-position 0.5s ease;
}

.login-btn:hover::after {
    background-position: 100% 0;
}