/* Picker Wheel - Modern Slick Design */

/* ===============================================
   MODERN TOOL HEADER DESIGN
   =============================================== */
.tool-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--info-color) 100%);
    border-radius: var(--radius-xl);
    color: white;
    position: relative;
    overflow: hidden;
}

.tool-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.tool-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.tool-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ===============================================
   WHEEL SECTION
   =============================================== */
.wheel-section {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.wheel-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--info-color), var(--success-color));
}

.wheel-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.wheel-display {
    display: flex;
    justify-content: center;
    align-items: center;
}

.wheel-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.wheel-canvas {
    border-radius: 50%;
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
    border: 6px solid var(--bg-secondary);
}

.wheel-pointer {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.pointer-arrow {
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 30px solid var(--error-color);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.wheel-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
}

.spin-button {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    font-weight: bold;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    box-shadow: var(--shadow-lg);
}

.spin-button:hover:not(:disabled) {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.spin-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.spin-button i {
    font-size: 1.2rem;
}

.spin-button span {
    font-size: 0.7rem;
    letter-spacing: 1px;
}

/* ===============================================
   WHEEL CONTROLS
   =============================================== */
.wheel-controls {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.control-group {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.control-group h3 {
    margin: 0 0 1rem 0;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.control-group h3 i {
    color: var(--primary-color);
}

.controls-grid {
    display: grid;
    gap: 1rem;
}

.control-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.control-item label {
    font-weight: 500;
    color: var(--text-secondary);
}

.control-select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.control-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition);
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

/* ===============================================
   RESULT DISPLAY
   =============================================== */
.result-display {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    animation: resultSlideIn 0.5s ease-out;
}

@keyframes resultSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.result-header i {
    font-size: 1.5rem;
    color: #fbbf24;
}

.result-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
}

.result-item {
    background: rgba(255, 255, 255, 0.2);
    padding: 1rem;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    word-break: break-word;
}

.result-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.result-actions .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.9rem;
}

/* ===============================================
   OPTIONS SECTION
   =============================================== */
.options-section {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.options-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--info-color), var(--warning-color));
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--bg-tertiary);
}

.section-header h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-header h2 i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.section-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.options-container {
    display: grid;
    gap: 2rem;
}

/* ===============================================
   PRESETS SECTION
   =============================================== */
.presets-section h3 {
    margin: 0 0 1.5rem 0;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.presets-section h3 i {
    color: var(--warning-color);
}

.presets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.preset-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-primary);
}

.preset-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.preset-btn i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.preset-btn:hover i {
    color: white;
}

.preset-btn span {
    font-weight: 500;
    font-size: 0.9rem;
}

/* ===============================================
   CUSTOM OPTIONS
   =============================================== */
.custom-options h3 {
    margin: 0 0 1.5rem 0;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.custom-options h3 i {
    color: var(--info-color);
}

.add-option {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.option-input {
    flex: 1;
    min-width: 200px;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.option-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Bulk Add */
.bulk-details {
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.bulk-details summary {
    padding: 1rem;
    background: var(--bg-secondary);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.bulk-details summary:hover {
    background: var(--bg-tertiary);
}

.bulk-details summary i {
    color: var(--primary-color);
}

.bulk-content {
    padding: 1rem;
    background: var(--bg-card);
}

.bulk-textarea {
    width: 100%;
    min-height: 100px;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    resize: vertical;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.bulk-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Options List */
.options-list {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.options-list::-webkit-scrollbar {
    width: 6px;
}

.options-list::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

.options-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.option-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.option-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
}

.option-text {
    flex: 1;
    color: var(--text-primary);
    font-weight: 500;
    margin-right: 1rem;
    word-break: break-word;
}

.option-color {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    margin-right: 0.75rem;
    flex-shrink: 0;
}

.option-actions {
    display: flex;
    gap: 0.5rem;
}

.option-actions .btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

/* Options Info */
.options-info {
    display: flex;
    gap: 2rem;
    justify-content: center;
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.info-item i {
    color: var(--primary-color);
}

.info-item span {
    font-weight: 500;
}

/* ===============================================
   HISTORY SECTION
   =============================================== */
.history-section {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.history-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--success-color), var(--info-color), var(--warning-color));
}

.history-section h2 {
    margin: 0 0 1.5rem 0;
    color: var(--text-primary);
    font-size: 1.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.history-section h2 i {
    color: var(--success-color);
    font-size: 1.5rem;
}

.history-container {
    position: relative;
}

.history-controls {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    justify-content: flex-end;
}

.history-list {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
}

.no-history {
    padding: 3rem;
    text-align: center;
    color: var(--text-muted);
}

.no-history i {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--border-color);
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.history-item:last-child {
    border-bottom: none;
}

.history-item:hover {
    background: var(--bg-tertiary);
}

.history-result {
    font-weight: 600;
    color: var(--text-primary);
    margin-right: 1rem;
    word-break: break-word;
}

.history-time {
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ===============================================
   BUTTON SYSTEM
   =============================================== */
.btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.btn:hover::before {
    left: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color), #475569);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: var(--bg-card);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-outline-sm:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

/* ===============================================
   CONFETTI ANIMATION
   =============================================== */
.confetti {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
}

.confetti-piece {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    animation: confettiFall 3s linear forwards;
}

@keyframes confettiFall {
    to {
        transform: translateY(100vh) rotate(360deg);
    }
}

/* ===============================================
   CONFIRMATION MODAL
   =============================================== */
.confirmation-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.confirmation-modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    max-width: 450px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    position: relative;
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s ease;
}

.confirmation-modal.show .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.modal-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--warning-color), #f59e0b);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem auto;
    position: relative;
}

.modal-icon::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(135deg, var(--warning-color), #f59e0b);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.3;
}

.modal-title {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
}

.modal-message {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.5;
    margin: 0;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.modal-btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    min-width: 120px;
    justify-content: center;
}

.modal-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.modal-btn:hover::before {
    left: 100%;
}

.modal-btn-confirm {
    background: linear-gradient(135deg, var(--error-color), #dc2626);
    color: white;
    box-shadow: var(--shadow-md);
}

.modal-btn-confirm:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #dc2626, var(--error-color));
}

.modal-btn-cancel {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.modal-btn-cancel:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===============================================
   SEO CONTENT STYLING
   =============================================== */
.seo-content {
    margin-top: 3rem;
    background: var(--bg-secondary);
    padding: 3rem 0;
}

.seo-content section {
    margin-bottom: 3rem;
    padding: 3rem 0;
}

.seo-content section:nth-child(even) {
    background: var(--bg-card);
}

.seo-content h2 {
    color: var(--text-primary);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.seo-content h2 i {
    color: var(--primary-color);
    font-size: 1.75rem;
}

.content-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.content-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--info-color), var(--success-color));
}

.content-card > p:first-of-type {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
}

.content-card h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 2rem 0 1.5rem 0;
    position: relative;
    padding-left: 1rem;
}

.content-card h3::after {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    border-radius: 2px;
}

.content-card h4 {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 600;
    margin: 1.5rem 0 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.content-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.content-card ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.content-card li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.content-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.1rem;
    width: 1rem;
    height: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.step-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--info-color));
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-hover);
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    position: relative;
}

.step-number::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    border-radius: 50%;
    z-index: -1;
    opacity: 0.3;
}

.step-content h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.step-content p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
}

.benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.benefit-icon {
    width: 4.5rem;
    height: 4.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
    transition: var(--transition);
    position: relative;
}

.benefit-icon::before {
    content: '';
    position: absolute;
    inset: -4px;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    border-radius: 50%;
    z-index: -1;
    opacity: 0.2;
    transition: var(--transition);
}

.benefit-card:hover .benefit-icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
}

.benefit-card:hover .benefit-icon::before {
    opacity: 0.3;
    transform: scale(1.1);
}

.benefit-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    position: relative;
}

.benefit-card h3::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--info-color));
    border-radius: 1px;
}

.benefit-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1rem;
}

.features-container {
    margin-top: 2rem;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.feature-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.feature-item i {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.use-case-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.use-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--info-color), var(--success-color));
}

.use-case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.use-case-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--info-color), var(--success-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.75rem;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
    transition: var(--transition);
}

.use-case-card:hover .use-case-icon {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.35);
}

.use-case-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.use-case-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.tips-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.tip-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: var(--transition);
}

.tip-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--warning-color);
}

.tip-icon {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--warning-color), #f59e0b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.tip-item:hover .tip-icon {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.tip-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.tip-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* ===============================================
   RESPONSIVE DESIGN
   =============================================== */
@media (max-width: 1024px) {
    .wheel-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .wheel-wrapper {
        width: 350px;
        height: 350px;
    }
    
    .wheel-canvas {
        width: 350px;
        height: 350px;
    }
    
    .presets-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
}

@media (max-width: 768px) {
    .tool-header {
        padding: 2rem 0;
    }
    
    .tool-header h1 {
        font-size: 2.5rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .wheel-section,
    .options-section,
    .history-section {
        padding: 1.5rem;
    }
    
    .wheel-wrapper {
        width: 300px;
        height: 300px;
    }
    
    .wheel-canvas {
        width: 300px;
        height: 300px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .section-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .add-option {
        flex-direction: column;
    }
    
    .option-input {
        width: 100%;
    }
    
    .steps-grid,
    .features-list,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .options-info {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .history-controls {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .tool-header {
        padding: 1.5rem 0;
    }
    
    .tool-header h1 {
        font-size: 2rem;
    }
    
    .wheel-section,
    .options-section,
    .history-section {
        padding: 1rem;
    }
    
    .wheel-wrapper {
        width: 250px;
        height: 250px;
    }
    
    .wheel-canvas {
        width: 250px;
        height: 250px;
    }
    
    .spin-button {
        width: 60px;
        height: 60px;
        font-size: 0.8rem;
    }
    
    .spin-button i {
        font-size: 1rem;
    }
    
    .spin-button span {
        font-size: 0.6rem;
    }
    
    .control-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .presets-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .step-card,
    .feature-item,
    .use-case-card,
    .tip-item {
        padding: 1rem;
    }
    
    .content-card {
        padding: 1.5rem;
    }
    
    .seo-content {
        padding: 2rem 0;
    }
}