@import url('https://fonts.googleapis.com/css2?family=Cascadia+Code:ital,wght@0,200..700;1,200..700&family=Cascadia+Mono:ital,wght@0,200..700;1,200..700&display=swap');

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

:root {
    --primary-color: #80d4ff;
    --error-color: #ff8080;
    --bg-color: #0a0a0a;
    --text-color: #e0e0e0;
    --text-secondary: #6c6c6c;
    --border-dark: #333;
    --input-bg: #0f0f0f;
}

/* Error page overrides */
.error-theme {
    --primary-color: var(--error-color);
}

body {
    font-family: 'Cascadia Code', sans-serif;
    background: var(--bg-color);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-color);
}

.container {
    background: var(--bg-color);
    background-image:
        radial-gradient(circle at 25% 25%, #1a1a1a 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, #151515 0%, transparent 50%);
    border: 3px solid var(--primary-color);
    box-shadow:
        0 0 20px rgba(128, 212, 255, 0.3),
        inset 0 0 20px rgba(128, 212, 255, 0.1);
    max-width: 500px;
    width: 100%;
    padding: 30px;
    position: relative;
}

.error-theme .container {
    box-shadow:
        0 0 20px rgba(255, 128, 128, 0.3),
        inset 0 0 20px rgba(255, 128, 128, 0.1);
}

.container::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg, var(--primary-color), var(--primary-color), var(--primary-color), var(--primary-color));
    z-index: -1;
    animation: borderGlow 2s linear infinite;
    background-size: 400% 400%;
}

h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: bold;
    text-align: center;
    letter-spacing: 2px;
    text-shadow: 0 0 10px rgba(128, 212, 255, 0.5);
    animation: textGlow 5s infinite alternate ease-in-out;
}

.error-theme h1 {
    text-shadow: 0 0 10px rgba(255, 128, 128, 0.5);
}

.subtitle {
    text-align: center;
    margin-top: 5px;
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-style: italic;
    opacity: 0.8;
}

.error-message {
    text-align: center;
    margin-top: 20px;
    color: var(--text-color);
    font-size: 1.1rem;
    line-height: 1.5;
}

.form-group {
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.form-group > label {
    display: block;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.sender-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    border: 2px solid var(--border-dark);
    background: var(--input-bg);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.option:hover {
    border-color: var(--primary-color);
    background: rgba(128, 212, 255, 0.1);
    box-shadow: 0 0 15px rgba(128, 212, 255, 0.2);
}

.option.selected {
    border-color: var(--primary-color);
    background: rgba(128, 212, 255, 0.15);
    box-shadow: 0 0 15px rgba(128, 212, 255, 0.3);
}

.option label {
    margin-bottom: 0;
    cursor: pointer;
    text-transform: none;
    font-size: 1rem;
    letter-spacing: 0;
    color: var(--text-color);
}

input[type="radio"] {
    margin: 0;
    accent-color: var(--primary-color);
}

input[type="text"],
textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-dark);
    background: var(--input-bg);
    color: var(--text-color);
    font-family: 'Cascadia Code', monospace;
    font-size: 16px;
    transition: all 0.2s ease;
    margin-top: 10px;
    display: none;
    resize: vertical;
    min-height: 80px;
}

input[type="text"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(128, 212, 255, 0.05);
    box-shadow: 0 0 10px rgba(128, 212, 255, 0.2);
}

input[type="text"]:disabled,
textarea:disabled {
    background-color: var(--bg-color);
    color: #555;
    border-color: #222;
}

input[type="text"]::placeholder,
textarea::placeholder {
    color: #666;
}

.send-button,
.retry-button {
    background: var(--primary-color);
    color: var(--bg-color);
    border: 2px solid var(--primary-color);
    padding: 15px 30px;
    font-size: 16px;
    font-weight: bold;
    font-family: 'Cascadia Code', monospace;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 2px;
    width: 100%;
    margin-top: 15px;
    position: relative;
    overflow: hidden;
}

.send-button:hover:not(:disabled),
.retry-button:hover {
    background: var(--bg-color);
    color: var(--primary-color);
    box-shadow:
        0 0 20px rgba(128, 212, 255, 0.4),
        inset 0 0 20px rgba(128, 212, 255, 0.1);
}

.error-theme .retry-button:hover {
    box-shadow:
        0 0 20px rgba(255, 128, 128, 0.4),
        inset 0 0 20px rgba(255, 128, 128, 0.1);
}

.send-button:disabled {
    background: #333;
    color: #666;
    border-color: #333;
    cursor: not-allowed;
    box-shadow: none;
}

.status-message {
    margin-top: 20px;
    padding: 12px 15px;
    font-weight: bold;
    display: none;
    font-family: 'Cascadia Code', monospace;
    letter-spacing: 1px;
    font-size: 0.9rem;
    border: 2px solid;
}

.status-message.success {
    background-color: rgba(128, 212, 255, 0.1);
    color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(128, 212, 255, 0.2);
}

.status-message.error {
    background-color: rgba(255, 128, 128, 0.1);
    color: var(--error-color);
    border-color: var(--error-color);
    box-shadow: 0 0 15px rgba(255, 128, 128, 0.2);
}

.message-options {
    margin-top: 20px;
}

.message-type {
    margin-bottom: 10px;
}

.hidden {
    opacity: 0;
    height: 0;
    overflow: hidden;
    margin-bottom: 0;
}

/* Loading and animation states */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(128, 212, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
    margin-right: 8px;
    vertical-align: middle;
}

.sending {
    animation: pulse 1s infinite;
}

/* Animations */
@keyframes borderGlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes textGlow {
    0%, 100% {
        text-shadow: 0 0 10px rgba(128, 212, 255, 0.5);
    }
    50% {
        text-shadow: 0 0 20px rgba(128, 212, 255, 0.8);
    }
}

.error-theme h1 {
    animation-name: textGlowError;
}

@keyframes textGlowError {
    0%, 100% {
        text-shadow: 0 0 10px rgba(255, 128, 128, 0.5);
    }
    50% {
        text-shadow: 0 0 20px rgba(255, 128, 128, 0.8);
    }
}

@keyframes pulse {
    0% { box-shadow: 0 0 20px rgba(128, 212, 255, 0.4); }
    50% { box-shadow: 0 0 30px rgba(128, 212, 255, 0.6); }
    100% { box-shadow: 0 0 20px rgba(128, 212, 255, 0.4); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}