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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, gray 0%, darkgray 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    color: #333;
}

.container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 900px;
    width: 100%;
    padding: 30px;
    display: flex;
    flex-direction: column;
    min-height: 80vh;
}

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

header h1 {
    color: black;
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 1rem;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.controls {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-bottom: 20px;
}

.reset-button {
    background: #e0e0e0;
    color: #333;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.reset-button:hover {
    background: #d0d0d0;
    transform: translateY(-2px);
}

.reset-button:active {
    transform: translateY(0);
}

.copy-button {
    background: #fb7832;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.copy-button:hover {
    background: #e46520;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.copy-button:active {
    transform: translateY(0);
}

.icon {
    width: 20px;
    height: 20px;
}

.editor-container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.template-editor {
    flex: 1;
    min-height: 400px;
    padding: 20px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    overflow-y: auto;
    transition: border-color 0.3s ease;
}

.template-editor:focus-within {
    border-color: #fb7832;
    box-shadow: 0 0 0 3px rgba(251, 120, 50, 0.1);
}

.template-editor .section {
    margin-bottom: 20px;
    padding: 12px;
    background: #f8f9fa;
    border-left: 4px solid #fb7832;
    border-radius: 4px;
    transition: background 0.2s ease;
}

.template-editor .section:hover {
    background: #f0f1f5;
}

.template-editor .section-heading {
    margin-bottom: 8px;
    color: #000;
    font-size: 15px;
}

.template-editor .section-content {
    font-weight: normal;
    min-height: 24px;
    color: #333;
    padding: 8px 10px;
    background: white;
    border-radius: 4px;
    border: 1px solid #e0e0e0;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.template-editor .section-content:focus {
    border-color: #fb7832;
    box-shadow: 0 0 0 2px rgba(251, 120, 50, 0.15);
}

.template-editor .section-content:empty::before {
    color: #999;
}

.notification {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #4caf50;
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    font-weight: 600;
    animation: slideIn 0.3s ease;
    z-index: 1000;
}

.notification.hidden {
    display: none;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
    color: #666;
    font-size: 0.9rem;
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 20px;
        min-height: 90vh;
    }

    header h1 {
        font-size: 1.8rem;
    }

    .subtitle {
        font-size: 0.9rem;
    }

    .reset-button,
    .copy-button {
        flex: 1;
        justify-content: center;
        padding: 14px 20px;
    }

    .template-editor {
        min-height: 350px;
        font-size: 13px;
        padding: 15px;
    }

    .notification {
        bottom: 20px;
        right: 20px;
        left: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.5rem;
    }

    .copy-button {
        font-size: 0.9rem;
        padding: 12px 16px;
    }

    .template-editor {
        font-size: 12px;
        min-height: 300px;
    }
}