/* Base Styles */
:root {
    --primary-color: #4a6bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7ff;
    position: relative;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background-color: white;
    padding: 2rem 0;
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

/* Tool Section */
.tool-section {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
}

.mode-toggle {
    display: flex;
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    background-color: #e9ecef;
}

.mode-toggle button {
    flex: 1;
    padding: 0.75rem;
    border: none;
    background: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.mode-toggle button.active {
    background-color: var(--primary-color);
    color: white;
}

.mode-toggle button:not(.active):hover {
    background-color: #dee2e6;
}

/* Input/Output Areas */
.input-area, .output-area {
    margin-bottom: 1.5rem;
}

.input-area label, .output-area label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

textarea {
    width: 100%;
    min-height: 150px;
    padding: 1rem;
    border: 1px solid #ced4da;
    border-radius: var(--border-radius);
    resize: vertical;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 107, 255, 0.2);
}

textarea#output-text {
    background-color: #f8f9fa;
}

/* Buttons */
.action-buttons, .output-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

button i {
    font-size: 1rem;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
}

.primary-btn:hover {
    background-color: #3a5bef;
    transform: translateY(-2px);
}

.secondary-btn {
    background-color: var(--secondary-color);
    color: white;
}

.secondary-btn:hover {
    background-color: #5a6268;
    transform: translateY(-2px);
}

/* Info Section */
.info-section {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
}

.info-section h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-section h3 {
    margin: 1.5rem 0 1rem;
    color: var(--dark-color);
}

.info-section p {
    margin-bottom: 1rem;
}

.info-section ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

/* Examples */
.example-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.example {
    flex: 1;
    min-width: 250px;
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: var(--border-radius);
}

.example h4 {
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.example code {
    background-color: #e9ecef;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
    word-break: break-all;
}

/* User Types */
.user-types {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.user-type {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 1.5rem 1rem;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
}

.user-type i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.user-type h4 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

/* Ad Slots */
.ad-slot {
    margin: 2rem 0;
    text-align: center;
}

.ad-placeholder {
    padding: 2rem;
    background-color: #e9ecef;
    border-radius: var(--border-radius);
    color: var(--secondary-color);
}

.header-ad {
    margin-top: 1.5rem;
}

.sidebar-ad {
    display: none;
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 1.5rem 0;
    text-align: center;
    margin-top: 2rem;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--success-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    opacity: 0;
    transition: var(--transition);
    z-index: 1000;
}

.toast.show {
    opacity: 1;
}

/* Responsive Design */
@media (min-width: 768px) {
    .tool-section {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .input-area, .output-area {
        margin-bottom: 0;
    }

    .sidebar-ad {
        display: block;
        position: fixed;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
        width: 160px;
    }

    .sidebar-ad .ad-placeholder {
        min-height: 600px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .action-buttons, .output-actions {
        flex-direction: column;
    }

    button {
        justify-content: center;
    }
}