body {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 0;
    min-height: 1280px;
}

.container {
    width: 100%;
    max-width: 430px;
    padding: 0 20px;
}

/* Page Title */
.page-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 26px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.page-title i {
    color: var(--purple);
}

/* Card Styling */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 28px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Labels */
.label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.label {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.section-header {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

/* Character Counter Badge */
.char-counter {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 10px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}

/* Input/Output Container */
.input-container,
.output-container {
    position: relative;
}

/* Text Areas */
.text-area {
    width: 100%;
    min-height: 140px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    font-family: 'Inter', sans-serif;
    font-size: 17px;
    resize: vertical;
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.text-area::placeholder {
    color: var(--text-muted);
}

.text-area:focus {
    outline: 2px solid var(--purple);
    outline-offset: 2px;
    border-color: transparent;
}

.output-area {
    min-height: 120px;
    background-color: var(--bg-primary);
    padding-right: 48px;
}

.output-area:read-only {
    cursor: default;
}

.output-area:empty::before {
    content: 'Your excerpt will appear here...';
    color: var(--text-muted-dark);
}

/* Clear Button */
.clear-button {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease-in-out;
}

.clear-button.visible {
    opacity: 1;
    pointer-events: auto;
}

.clear-button:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.clear-button:active {
    transform: scale(0.95);
}

/* Helper Text */
.helper-text {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 8px;
    line-height: 1.5;
}

.error-text {
    color: var(--error);
}

/* Word Count Slider */
.slider-container {
    position: relative;
    margin-bottom: 8px;
}

input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--purple);
    border: 2px solid var(--text-primary);
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.4);
    cursor: pointer;
    transition: all 0.2s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    background: var(--purple-dark);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--purple);
    border: 2px solid var(--text-primary);
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.4);
    cursor: pointer;
}

.slider-value {
    font-size: 15px;
    font-weight: 500;
    color: var(--purple);
    margin-top: 8px;
}

/* Radio Options */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.radio-option {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
}

.radio-option input[type="radio"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 1px solid var(--border);
    border-radius: 50%;
    margin-right: 10px;
    margin-top: 2px;
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
}

.radio-option input[type="radio"]:checked {
    border-color: var(--purple);
    border-width: 2px;
}

.radio-option input[type="radio"]:checked::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--purple);
}

.radio-label {
    display: flex;
    flex-direction: column;
}

.radio-title {
    font-size: 15px;
    color: var(--text-primary);
}

.radio-description {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Checkbox Options */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-option {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.checkbox-option input[type="checkbox"] {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-option input[type="checkbox"]:checked {
    background: var(--purple);
    border-color: var(--purple);
}

.checkbox-option input[type="checkbox"]:checked::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-primary);
    font-size: 10px;
}

.checkbox-label {
    font-size: 15px;
    color: var(--text-primary);
}

/* Generate Button */
.generate-button {
    width: 100%;
    height: 52px;
    background-color: var(--purple);
    color: var(--text-primary);
    border: none;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease-in-out;
}

.generate-button:disabled {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-muted-dark);
    cursor: not-allowed;
}

.generate-button:not(:disabled):hover {
    background: var(--purple-dark);
    transform: scale(1.02);
}

.generate-button:not(:disabled):active {
    transform: scale(0.98);
}

/* Copy Button */
.copy-button {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background-color: var(--purple);
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease-in-out;
}

.copy-button:hover {
    background-color: var(--purple-dark);
    transform: translateY(-50%) scale(1.05);
}

.copy-button:active {
    transform: translateY(-50%) scale(0.95);
}

/* Copy Tooltip */
.copy-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease-in-out;
    white-space: nowrap;
}

.copy-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    right: 12px;
    border: 4px solid transparent;
    border-top-color: var(--bg-secondary);
}

.copy-tooltip.show {
    opacity: 1;
    animation: tooltipFadeIn 0.2s ease-out;
}

@keyframes tooltipFadeIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Statistics */
.statistics-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 16px;
}

.stat-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 12px;
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-muted);
}

/* Spacing utilities */
.mb-20 {
    margin-bottom: 20px;
}

.mt-20 {
    margin-top: 20px;
}