/* ============================================
   VisualHub - Component Styles
   ============================================ */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    box-shadow: 0 4px 15px rgba(55, 182, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(55, 182, 255, 0.5);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-accent-primary);
    color: var(--color-accent-primary);
}

.btn-outline:hover {
    background: rgba(55, 182, 255, 0.1);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-accent-primary);
}

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-sm);
}

/* Cards */
.card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow);
}

.card:hover::before {
    opacity: 0.1;
}

.card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-2xl);
    color: white;
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.card-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

/* Service Card */
.service-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(55, 182, 255, 0.1), transparent);
    opacity: 0;
    transition: var(--transition-slow);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-accent-primary);
    box-shadow: 0 10px 40px rgba(55, 182, 255, 0.3);
}

.service-card:hover::after {
    opacity: 1;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

/* Section */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: rgba(55, 182, 255, 0.1);
    border: 1px solid var(--color-accent-primary);
    border-radius: 999px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent-primary);
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 1rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(55, 182, 255, 0.1);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

/* Toast Notification */
.toast {
    position: fixed;
    top: 100px;
    right: var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 300px;
    animation: slideInRight 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.toast.show {
    opacity: 1;
    visibility: visible;
}

.toast.success {
    border-left: 4px solid #10b981;
}

.toast.error {
    border-left: 4px solid #ef4444;
}

.toast.info {
    border-left: 4px solid var(--color-accent-primary);
}

.toast-icon {
    font-size: var(--font-size-xl);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--color-text-primary);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

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

.modal-content {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideUp 0.3s ease;
}

@keyframes modalSlideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-text-primary);
}

/* Loader Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Pagination */
.pagination {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.pagination-btn {
    padding: 0.75rem 1rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--color-bg-tertiary);
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
}

.pagination-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Tabs */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--color-text-muted);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.tab-btn:hover {
    color: var(--color-text-secondary);
}

.tab-btn.active {
    color: var(--color-accent-primary);
    border-bottom-color: var(--color-accent-primary);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.hidden { display: none; }
.flex { display: flex; }
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.w-full { width: 100%; }

/* ============================================
   Webtoon Slider Styles
   ============================================ */
.webtoon-slider-container {
    margin-top: 2rem;
}

.webtoon-slider-container h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
    text-align: center;
}

.webtoon-slider {
    position: relative;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.slider-track {
    position: relative;
    width: 100%;
    min-height: 400px;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: var(--color-bg-primary);
}

.slider-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.5s ease, transform 0.5s ease;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-item.active {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
    z-index: 1;
}

.slider-item img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    backdrop-filter: blur(5px);
}

.slider-btn:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: translateY(-50%) scale(1.1);
}

.slider-btn i {
    font-size: 1.2rem;
}

.prev-btn {
    left: 10px;
}

.next-btn {
    right: 10px;
}

.slider-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.5rem;
    padding: 0 1rem;
}

.slider-counter {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.slider-counter .current-slide {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent-primary);
}

.autoplay-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(55, 182, 255, 0.3);
}

.autoplay-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(55, 182, 255, 0.5);
}

.autoplay-btn i {
    font-size: 1rem;
}

/* 모바일 반응형 */
@media (max-width: 768px) {
    .webtoon-slider {
        padding: 0.5rem;
    }

    .slider-track {
        min-height: 300px;
    }

    .slider-btn {
        width: 40px;
        height: 40px;
    }

    .slider-btn i {
        font-size: 1rem;
    }

    .slider-info {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .autoplay-btn {
        width: 100%;
        justify-content: center;
    }
}

/* 키보드 단축키 안내 */
.slider-hint {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    opacity: 0.7;
}