/* ============================================
   CÁCH TÔI LÀM - Detail Page Styles
   ============================================ */

/* --- Page Header --- */
.page-header {
    padding: calc(var(--space-xl) + 60px) 0 var(--space-lg);
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
    text-align: center;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.breadcrumb a {
    color: var(--color-text-light);
}

.breadcrumb a:hover {
    color: var(--color-primary);
}

.page-title {
    font-size: 2.5rem;
    letter-spacing: 0.05em;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-sm);
}

.page-subtitle {
    font-style: italic;
    color: var(--color-text-muted);
    margin: 0;
}

/* --- Warning Banner --- */
.warning-banner {
    background: #FFF3E0;
    padding: var(--space-sm) 0;
    border-bottom: 2px solid var(--color-warning);
}

.warning-banner p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    margin: 0;
    font-size: 0.95rem;
    text-align: center;
}

.warning-banner i {
    color: var(--color-warning);
}

/* --- Table of Contents --- */
.toc-section {
    padding: var(--space-lg) 0;
    background: white;
}

.toc-box {
    background: var(--color-bg);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    max-width: 500px;
    margin: 0 auto;
}

.toc-box h2 {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 1.2rem;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.toc-list {
    list-style: none;
    counter-reset: toc-counter;
}

.toc-list li {
    counter-increment: toc-counter;
    margin-bottom: var(--space-sm);
}

.toc-list li a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    background: white;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.toc-list li a::before {
    content: counter(toc-counter);
    width: 28px;
    height: 28px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    flex-shrink: 0;
}

.toc-list li a:hover {
    background: var(--color-primary);
    color: white;
    transform: translateX(4px);
}

.toc-list li a:hover::before {
    background: white;
    color: var(--color-primary);
}

/* --- Content Sections --- */
.content-section {
    padding: var(--space-xl) 0;
}

.content-section.alt-bg {
    background: var(--color-bg);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.section-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.section-header h2 {
    font-size: 1.8rem;
    margin: 0;
}

.intro-text {
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

/* --- Ingredients Grid --- */
.ingredients-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.ingredient-group {
    background: white;
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.content-section.alt-bg .ingredient-group {
    background: white;
}

.content-section:not(.alt-bg) .ingredient-group {
    background: var(--color-bg);
}

.ingredient-group.full-width {
    grid-column: 1 / -1;
}

.ingredient-group h3 {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-xs);
    border-bottom: 2px solid var(--color-bg-dark);
}

.ingredient-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.ingredient-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xs) 0;
    border-bottom: 1px dashed var(--color-bg-dark);
}

.ingredient-list li:last-child {
    border-bottom: none;
}

.ingredient-name {
    font-weight: 500;
}

.ingredient-note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-style: italic;
}

.ingredient-list.horizontal {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.ingredient-list.horizontal li {
    background: var(--color-bg-alt);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    border: none;
}

.ingredient-list.horizontal li small {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* --- Usage Box --- */
.usage-box {
    background: #E8F5E9;
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-secondary);
    margin-bottom: var(--space-md);
}

.usage-box h4 {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-secondary);
    margin-bottom: var(--space-sm);
}

.usage-box p:last-child {
    margin-bottom: 0;
}

/* --- Alternative Box --- */
.alternative-box {
    background: #FFF8E1;
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    border-left: 4px solid #F9A825;
}

.alternative-box h4 {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: #F57F17;
    margin-bottom: var(--space-sm);
}

.alternative-box .tip {
    background: white;
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    margin: var(--space-sm) 0;
}

/* --- Simple List Box --- */
.simple-list-box {
    background: white;
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    max-width: 400px;
    margin: 0 auto var(--space-lg);
}

.simple-list-box.highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: white;
}

.simple-ingredient-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.simple-ingredient-list li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.1rem;
}

.simple-ingredient-list.large li {
    font-size: 1.3rem;
    justify-content: center;
}

.simple-ingredient-list .bullet {
    color: var(--color-primary);
    font-weight: bold;
}

.simple-list-box.highlight .bullet {
    color: var(--color-accent);
}

.simple-ingredient-list .emoji {
    font-size: 1.5rem;
}

/* --- Steps List --- */
.steps-list {
    margin-top: var(--space-md);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.step-num {
    width: 28px;
    height: 28px;
    background: var(--color-secondary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    flex-shrink: 0;
}

.step p {
    margin: 0;
    padding-top: 2px;
}

/* --- Preparation Grid --- */
/* --- Prep Gallery --- */
.prep-gallery {
    margin-bottom: var(--space-lg);
    background: white;
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.prep-gallery-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    text-align: center;
    justify-content: center;
}

.prep-gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.prep-gallery-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.prep-gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.prep-gallery-item:hover img {
    transform: scale(1.05);
}

.prep-gallery-item p {
    padding: var(--space-sm);
    font-size: 0.9rem;
    color: var(--color-text-light);
    text-align: center;
    background: var(--color-bg);
    margin: 0;
}

@media (max-width: 768px) {
    .prep-gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .prep-gallery-item img {
        height: 180px;
    }
}

.prep-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.prep-card {
    background: white;
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.prep-card.full-width {
    grid-column: 1 / -1;
}

.prep-icon {
    font-size: 3rem;
    margin-bottom: var(--space-sm);
    text-align: center;
}

.prep-card h3 {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    text-align: center;
}

.prep-steps {
    list-style: none;
    counter-reset: prep-counter;
    margin-bottom: var(--space-md);
}

.prep-steps li {
    counter-increment: prep-counter;
    padding: var(--space-xs) 0;
    padding-left: 35px;
    position: relative;
}

.prep-steps li::before {
    content: counter(prep-counter);
    position: absolute;
    left: 0;
    width: 24px;
    height: 24px;
    background: var(--color-accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.prep-note {
    background: var(--color-bg);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 0;
}

.prep-note i {
    color: var(--color-primary);
    margin-right: var(--space-xs);
}

/* --- Wine Types --- */
.wine-types {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.wine-type {
    background: var(--color-bg);
    padding: var(--space-md);
    border-radius: var(--radius-md);
}

.wine-type h4 {
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.wine-steps {
    list-style: decimal;
    padding-left: var(--space-md);
    margin: var(--space-sm) 0;
}

.wine-steps li {
    padding: var(--space-xs) 0;
    font-size: 0.95rem;
}

.wine-type .benefit {
    background: #E8F5E9;
    color: var(--color-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
}

/* --- Checklist Section --- */
.checklist-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: white;
}

.checklist-section .section-number {
    background: white;
    color: var(--color-primary);
}

.checklist-section .section-header h2 {
    color: white;
}

.checklist-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.checklist-card {
    background: rgba(255, 255, 255, 0.15);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform var(--transition-normal);
}

.checklist-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.25);
}

.time-badge {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.checklist-card p {
    font-size: 0.95rem;
    margin: 0;
}

/* --- Important Rules --- */
.important-rules {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
}

.important-rules h3 {
    color: white;
    text-align: center;
    margin-bottom: var(--space-md);
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.rule-card {
    background: white;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    text-align: center;
    color: var(--color-text);
}

.rule-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.rule-card.pain .rule-icon {
    color: var(--color-warning);
}

.rule-card.stable .rule-icon {
    color: var(--color-success);
}

.rule-card p {
    margin: 0;
    font-size: 0.95rem;
}

/* --- CTA Section --- */
.cta-section {
    padding: var(--space-lg) 0;
    background: var(--color-bg);
}

.cta-content {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.cta-content p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--color-primary);
    color: white;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.btn-cta:hover {
    background: var(--color-primary-light);
    color: white;
    transform: translateX(-4px);
}

/* --- Active nav link --- */
.nav-link.active {
    color: var(--color-primary);
}

.nav-link.active::after {
    width: 100%;
}

/* --- Responsive --- */
@media (max-width: 992px) {
    .checklist-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }
    
    .section-header {
        flex-direction: column;
        text-align: center;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .ingredients-grid {
        grid-template-columns: 1fr;
    }
    
    .prep-grid {
        grid-template-columns: 1fr;
    }
    
    .wine-types {
        grid-template-columns: 1fr;
    }
    
    .checklist-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .rules-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .checklist-grid {
        grid-template-columns: 1fr;
    }
    
    .warning-banner p {
        flex-direction: column;
    }
}