:root {
    /* Dark Red Theme (Default) */
    --primary: #ff0033;
    --primary-dark: #cc0029;
    --primary-light: #ff3355;
    --secondary: #000000;
    --accent: #ff0033;
    --dark: #121212;
    --darker: #0a0a0a;
    --light: #ffffff;
    --light-gray: #f1f1f1;
    --medium-gray: #888888;
    --dark-gray: #333333;
    --success: #00ff66;
    --error: #ff0033;
    --border-radius: 8px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* White Red Theme */
.white-red-theme {
    --primary: #ff0033;
    --primary-dark: #cc0029;
    --primary-light: #ff3355;
    --secondary: #ffffff;
    --accent: #ff0033;
    --dark: #ffffff;
    --darker: #f5f5f5;
    --light: #121212;
    --light-gray: #222222;
    --medium-gray: #555555;
    --dark-gray: #000000;
}

/* Black Red Theme */
.black-red-theme {
    --primary: #ff0033;
    --primary-dark: #cc0029;
    --primary-light: #ff3355;
    --secondary: #000000;
    --accent: #ff0033;
    --dark: #000000;
    --darker: #000000;
    --light: #ffffff;
    --light-gray: #111111;
    --medium-gray: #444444;
    --dark-gray: #000000;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--dark);
    color: var(--light);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    transition: var(--transition);
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 1000;
}

.theme-toggle button {
    padding: 8px 12px;
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--dark-gray);
    color: var(--light);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 1px;
}

.theme-toggle button.active {
    background-color: var(--primary);
}

.theme-toggle button:hover {
    background-color: var(--primary-light);
}

.container {
    width: 100%;
    max-width: 480px;
    perspective: 1000px;
}

.auth-container {
    background-color: var(--darker);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    position: relative;
    transform-style: preserve-3d;
    border: 1px solid rgba(255, 0, 51, 0.1);
}

.logo-container {
    text-align: center;
    padding: 50px 20px 40px;
    position: relative;
    overflow: hidden;
}

.logo-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 0, 51, 0.1), rgba(0, 0, 0, 0.8));
    z-index: 0;
}

.logo-container h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 5px;
    position: relative;
    z-index: 1;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.logo-container h1 span {
    color: var(--primary);
}

.logo-container p {
    font-size: 0.9rem;
    opacity: 0.8;
    position: relative;
    z-index: 1;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-weight: 300;
}

.pulse-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 0, 51, 0.2), transparent 70%);
    z-index: 0;
    animation: pulse 3s infinite;
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.3;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
}

.form-wrapper {
    padding: 30px;
    display: none;
    position: relative;
    background-color: var(--darker);
}

.form-wrapper.active {
    display: block;
}

.form-header {
    margin-bottom: 30px;
    text-align: center;
}

.form-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--light);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.form-divider {
    height: 2px;
    width: 60px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    margin: 0 auto;
}

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

.input-group label {
    position: absolute;
    top: 16px;
    left: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--medium-gray);
    pointer-events: none;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.input-group input {
    width: 100%;
    padding: 16px 15px 10px;
    border: none;
    border-bottom: 1px solid var(--dark-gray);
    font-size: 1rem;
    transition: var(--transition);
    background-color: transparent;
    color: var(--light);
    caret-color: var(--primary);
}

.input-group input:focus {
    outline: none;
    border-bottom-color: var(--primary);
}

.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
    top: -5px;
    left: 0;
    font-size: 0.7rem;
    color: var(--primary);
}

.input-highlight {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}

.input-group input:focus ~ .input-highlight {
    width: 100%;
}

.btn {
    display: block;
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.primary-btn {
    background-color: var(--primary);
    color: var(--light);
    z-index: 1;
}

.btn-hover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: var(--transition);
    z-index: -1;
}

.primary-btn:hover .btn-hover {
    transform: translateX(100%);
}

.form-footer {
    text-align: center;
    margin-top: 25px;
    font-size: 0.8rem;
    color: var(--medium-gray);
}

.form-footer a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-footer a:hover {
    color: var(--primary-light);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--darker);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 400px;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    border: 1px solid rgba(255, 0, 51, 0.2);
}

.modal-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 0, 51, 0.1);
    border: 1px solid var(--primary);
}

.modal-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--primary);
}

.modal h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal p {
    color: var(--medium-gray);
    margin-bottom: 25px;
    font-size: 0.9rem;
}

.modal-close-btn {
    margin-top: 20px;
}

/* Animations */
@keyframes floatUp {
    0% {
        transform: translateY(30px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.float-up {
    animation: floatUp 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

/* Responsive Styles */
@media (max-width: 480px) {
    .logo-container {
        padding: 40px 20px 30px;
    }
    
    .form-wrapper {
        padding: 25px 20px;
    }
    
    .logo-container h1 {
        font-size: 2rem;
    }
}