:root {
    --razer-green: #00FF00;
    --razer-green-dark: #00CC00;
    --white: #FFFFFF;
    --black: #000000;
    --gray-light: #F5F5F5;
    --gray-medium: #E0E0E0;
    --gray-dark: #333333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--black) 0%, var(--gray-dark) 100%);
    min-height: 100vh;
    overflow-x: hidden;
    padding: 20px;
    color: var(--white);
}

.container {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

/* Language Toggle */
.language-toggle {
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    gap: 10px;
    z-index: 100;
}

html[dir="ltr"] .language-toggle {
    left: auto;
    right: 0;
}

.lang-btn {
    padding: 10px 20px;
    border: 2px solid var(--razer-green);
    background: transparent;
    color: var(--razer-green);
    border-radius: 20px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-btn.active {
    background: var(--razer-green);
    color: var(--black);
}

.lang-btn:hover {
    transform: scale(1.05);
}

/* Header */
header {
    text-align: center;
    margin-bottom: 40px;
    margin-top: 60px;
}

.logo-container {
    margin-bottom: 20px;
}

#logo {
    max-width: 200px;
    height: auto;
    filter: drop-shadow(0 0 20px var(--razer-green));
}

h1 {
    font-size: 2.5rem;
    color: var(--razer-green);
    margin-bottom: 15px;
    text-shadow: 0 0 10px rgba(0, 255, 0, 0.5);
}

.subtitle {
    font-size: 1.1rem;
    color: var(--gray-medium);
}

/* Options Container */
.options-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 40px;
}

/* Option Cards */
.option-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border: 2px solid rgba(0, 255, 0, 0.3);
    border-radius: 20px;
    padding: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-height: 180px;
}

.option-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(0, 255, 0, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.option-card:hover {
    border-color: var(--razer-green);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 255, 0, 0.3);
}

.option-card:hover::before {
    opacity: 1;
}

.option-card:active {
    transform: translateY(-2px);
}

.option-card .icon {
    font-size: 3rem;
    margin-bottom: 15px;
    filter: grayscale(100%) brightness(2);
}

.option-card h2 {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 10px;
}

.option-card p {
    font-size: 1rem;
    color: var(--gray-medium);
    margin-bottom: 20px;
}

.cta-btn {
    background: var(--razer-green);
    color: var(--black);
    border: none;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s ease;
    text-transform: uppercase;
}

.cta-btn:hover {
    background: var(--razer-green-dark);
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(0, 255, 0, 0.5);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background: linear-gradient(145deg, var(--gray-dark), var(--black));
    margin: 5% auto;
    padding: 40px;
    border: 2px solid var(--razer-green);
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    position: relative;
    animation: slideIn 0.3s ease;
    box-shadow: 0 0 50px rgba(0, 255, 0, 0.3);
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    color: var(--razer-green);
    position: absolute;
    top: 15px;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

html[dir="rtl"] .close {
    left: 15px;
}

html[dir="ltr"] .close {
    right: 15px;
}

.close:hover {
    color: var(--white);
    transform: rotate(90deg);
}

#qrTitle, #formTitle {
    color: var(--razer-green);
    margin-bottom: 30px;
    text-align: center;
    font-size: 1.8rem;
}

#qrCode {
    text-align: center;
    margin: 30px 0;
    padding: 20px;
    background: var(--white);
    border-radius: 15px;
    display: inline-block;
    width: 100%;
}

#qrCode img {
    max-width: 100%;
    height: auto;
}

.qr-instruction {
    text-align: center;
    color: var(--gray-medium);
    font-size: 1.1rem;
    margin-top: 20px;
}

/* Form Styles */
.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--razer-green);
    font-weight: bold;
    font-size: 1.1rem;
}

.form-group input {
    width: 100%;
    padding: 15px;
    border: 2px solid rgba(0, 255, 0, 0.3);
    border-radius: 10px;
    font-size: 1.1rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--razer-green);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.3);
}

.submit-btn {
    background: var(--razer-green);
    color: var(--black);
    border: none;
    padding: 18px;
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s ease;
    text-transform: uppercase;
}

.submit-btn:hover {
    background: var(--razer-green-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 255, 0, 0.5);
}

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

/* Success Modal */
.success-content {
    text-align: center;
}

.success-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--razer-green);
    color: var(--black);
    font-size: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    animation: successPulse 0.6s ease;
}

@keyframes successPulse {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

#successMessage {
    color: var(--gray-medium);
    font-size: 1.2rem;
    margin-top: 20px;
}

#formMessage {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: bold;
    display: none;
}

#formMessage.error {
    background: rgba(255, 0, 0, 0.2);
    border: 2px solid #ff0000;
    color: #ff6666;
}

#formMessage.success {
    background: rgba(0, 255, 0, 0.2);
    border: 2px solid var(--razer-green);
    color: var(--razer-green);
}

/* Tablet Optimization */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .option-card {
        padding: 25px;
    }
}

/* Prevent text selection on touch */
.option-card, .cta-btn, .submit-btn, .lang-btn {
    -webkit-user-select: none;
    user-select: none;
}