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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #1a1a2e;
    color: #eaeaea;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 600px;
    background-color: #16213e;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 12px;
}

.lock-icon {
    width: 36px;
    height: 36px;
    color: #e94560;
}

h1 {
    color: #e94560;
    font-weight: 600;
    font-size: 1.8rem;
    margin: 0;
}

.subtitle {
    color: #8892b0;
    font-size: 1rem;
    font-weight: 400;
}

.features {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: #0f3460;
    padding: 10px 16px;
    border-radius: 20px;
    font-size: 13px;
    color: #b8c5d6;
}

.feature-icon {
    font-size: 16px;
}

textarea {
    width: 100%;
    min-height: 150px;
    padding: 15px;
    border: 2px solid #0f3460;
    border-radius: 8px;
    background-color: #1a1a2e;
    color: #eaeaea;
    font-size: 14px;
    resize: vertical;
    transition: border-color 0.2s;
}

textarea:focus {
    outline: none;
    border-color: #e94560;
}

textarea::placeholder {
    color: #6c757d;
}

button {
    width: 100%;
    padding: 15px 30px;
    margin-top: 20px;
    border: none;
    border-radius: 8px;
    background-color: #e94560;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

button:hover {
    background-color: #ff6b6b;
}

button:active {
    transform: scale(0.98);
}

button:disabled {
    background-color: #4a4a4a;
    cursor: not-allowed;
}

.result {
    margin-top: 25px;
    padding: 20px;
    background-color: #0f3460;
    border-radius: 8px;
    display: none;
}

.result.show {
    display: block;
}

.result-label {
    font-size: 12px;
    color: #6c757d;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.result-link {
    word-break: break-all;
    color: #4ecca3;
    text-decoration: none;
    font-size: 14px;
}

.result-link:hover {
    text-decoration: underline;
}

.secret-content {
    background-color: #0f3460;
    border-radius: 8px;
    padding: 20px;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
}

.error-page {
    text-align: center;
}

.error-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.error-message {
    color: #6c757d;
    margin-top: 15px;
    font-size: 14px;
}

.copy-btn {
    margin-top: 15px;
    padding: 10px 20px;
    font-size: 14px;
    background-color: #4ecca3;
}

.copy-btn:hover {
    background-color: #3eb489;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #6c757d;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading-text {
    animation: pulse 1.5s infinite;
}