:root {
    --bg-color: #0c0c0c;
    --card-bg: rgba(25, 25, 25, 0.95);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-color: #ffffff;
    --input-bg: transparent;
    --input-border: #333333;
    --input-focus: #555555;
    --glow-1: rgba(0, 150, 255, 0.15);
    --glow-2: rgba(255, 0, 150, 0.15);
    --font-family: 'Poppins', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    font-family: var(--font-family);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

/* Background Glow Effects */
.background-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
}

.top-left {
    top: -200px;
    left: -200px;
    background: radial-gradient(circle, rgba(0, 128, 0, 0.2) 0%, transparent 70%);
}

.bottom-right {
    bottom: -200px;
    right: -200px;
    background: radial-gradient(circle, rgba(128, 0, 128, 0.2) 0%, transparent 70%);
}

/* Login Container */
.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: var(--card-bg);
    padding: 50px 40px;
    border-radius: 32px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 40px;
    letter-spacing: -0.5px;
}

/* Input Groups */
.input-group {
    text-align: left;
    margin-bottom: 25px;
}

.input-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper input {
    width: 100%;
    padding: 12px 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--input-border);
    color: var(--text-primary);
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s ease;
    outline: none;
}

.input-wrapper input:focus {
    border-color: var(--text-primary);
}

.input-wrapper i {
    position: absolute;
    right: 0;
    width: 20px;
    height: 20px;
    color: var(--text-primary);
    opacity: 0.8;
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 35px;
    font-size: 14px;
}

.checkbox-container {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.checkbox-container input {
    display: none;
}

.checkmark {
    height: 18px;
    width: 18px;
    background-color: transparent;
    border: 2px solid #555;
    border-radius: 4px;
    display: inline-block;
    margin-right: 8px;
    position: relative;
    transition: all 0.2s ease;
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--text-primary);
    border-color: var(--text-primary);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid black;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.forgot-password {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s;
}

.forgot-password:hover {
    opacity: 0.8;
}

/* Button */
.login-btn {
    width: 100%;
    padding: 16px;
    border-radius: 50px;
    border: none;
    background-color: #ffffff;
    color: #000000;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 30px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
}

.login-btn:active {
    transform: translateY(0);
}

.register-link {
    font-size: 14px;
    color: var(--text-secondary);
}

.register-link a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
}

/* Success Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: #1a1a1a;
    padding: 40px;
    border-radius: 24px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    transform: scale(0.9);
    animation: scaleUp 0.3s forwards ease-out;
}

.modal-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    color: #ffffff;
}

.modal-icon i {
    width: 40px;
    height: 40px;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    line-height: 1.4;
    color: #fff;
    font-weight: 500;
}

#closeModal {
    background: #ffffff;
    color: #000;
    border: none;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

#closeModal:hover {
    transform: scale(1.05);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleUp {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 40px 25px;
        border-radius: 24px;
    }
}