@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Mono&display=swap');

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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.container {
    width: 100%;
    max-width: 28rem;
}

.captcha-box {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 1.5rem;
    color: #1F2937;
    text-align: center;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.captcha-container {
    background: #F3F4F6;
    padding: 1rem;
    border-radius: 0.5rem;
    position: relative;
    margin-bottom: 1.5rem;
}

.captcha-text {
    font-family: 'Space Mono', monospace;
    font-size: 1.5rem;
    letter-spacing: 0.3em;
    text-align: center;
    background: linear-gradient(to right, #1F2937, #4B5563);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    transform: skew(-12deg);
    user-select: none;
}

#refreshButton {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #6B7280;
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.2s;
}

#refreshButton:hover {
    color: #374151;
}

.input-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.25rem;
}

input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #D1D5DB;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.2s;
}

input:focus {
    outline: none;
    border-color: #6366F1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

#errorMessage {
    display: none;
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 500;
}

#errorMessage.error-message {
    background: #FEF2F2;
    color: #DC2626;
}

#errorMessage.success-message {
    background: #ECFDF5;
    color: #059669;
}

#errorMessage.visible {
    display: block;
}

.submit-button {
    width: 100%;
    background: #4F46E5;
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.submit-button:hover {
    background: #4338CA;
}

.footer-text {
    text-align: center;
    color: #6B7280;
    font-size: 0.75rem;
    margin-top: 1.5rem;
}