/* ─── How to bid auto rulate ─────────────────────────────── */

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.htb-hero {
    width: 100%;
    padding: 140px 24px 56px;
    box-sizing: border-box;
    background: #f1f5f9;
}

.htb-hero-container {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.htb-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 28px;
    font-size: 14px;
    color: #94a3b8;
}

.htb-breadcrumb a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.15s ease;
}

.htb-breadcrumb a:hover {
    color: #64748b;
}

.htb-breadcrumb-sep {
    color: #cbd5e1;
}

.htb-breadcrumb-current {
    color: #64748b;
    font-weight: 500;
}

.htb-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    padding: 8px 16px;
    border-radius: 9999px;
    background: #d1fae5;
    color: #047857;
    font-size: 14px;
    font-weight: 600;
}

.htb-badge svg {
    flex-shrink: 0;
}

.htb-title {
    margin: 0 0 16px;
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: #0f172a;
}

.htb-desc {
    margin: 0 0 28px;
    max-width: 640px;
    font-size: 18px;
    line-height: 1.55;
    color: #64748b;
}

.htb-desc2 {
    margin: 0 0 28px;
    max-width: 640px;
    font-size: 16px;
    line-height: 1.55;
    color: #64748b;
}

.htb-desc3 {
    margin: 0 0 28px;
    max-width: 640px;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.55;
    color: #25a344;
}


.htb-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    font-size: 14px;
    color: #94a3b8;
}

.htb-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.htb-meta-item svg {
    flex-shrink: 0;
}

.htb-hero--dark {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.htb-hero--dark .htb-hero-container {
    max-width: 1100px;
}

.htb-hero--dark .htb-breadcrumb {
    color: rgba(255, 255, 255, 0.45);
}

.htb-hero--dark .htb-breadcrumb a {
    color: rgba(255, 255, 255, 0.55);
}

.htb-hero--dark .htb-breadcrumb a:hover {
    color: #ffffff;
}

.htb-hero--dark .htb-breadcrumb-sep {
    color: rgba(255, 255, 255, 0.28);
}

.htb-hero--dark .htb-breadcrumb-current {
    color: rgba(255, 255, 255, 0.88);
}

.htb-hero--dark .htb-title {
    color: #ffffff;
}

.htb-hero--dark .htb-desc,
.htb-hero--dark .htb-desc2 {
    max-width: 820px;
    color: rgba(255, 255, 255, 0.72);
}

.htb-hero--dark .htb-desc3 {
    max-width: 820px;
    color: #86efac;
}

.htb-hero--dark .htb-meta {
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 640px) {
    .htb-hero {
        padding: 120px 16px 36px;
    }

    .htb-desc {
        font-size: 16px;
    }
}

/* ─── Steps ──────────────────────────────────────────────── */
.htb-steps {
    width: 100%;
    background: #fff;
    padding: 24px 24px 64px;
    box-sizing: border-box;
}

.htb-steps-container {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.htb-step {
    display: flex;
    align-items: flex-start;
    gap: 24px;
}

.htb-step-num {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: #047857;
    color: #fff;
    font-size: 16px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(5, 150, 105, 0.28);
}

.htb-step-body {
    flex: 1;
    min-width: 0;
    padding-top: 4px;
}

.htb-step-title {
    margin: 0 0 14px;
    font-size: 22px;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.02em;
}

.htb-step-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.htb-step-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 16px;
    line-height: 1.5;
    color: #64748b;
}

.htb-check {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    margin-top: 1px;
    border-radius: 50%;
    background: #059669;
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 640px) {
    .htb-steps {
        padding: 8px 16px 48px;
    }

    .htb-step {
        gap: 16px;
    }

    .htb-step-num {
        width: 44px;
        height: 44px;
        font-size: 14px;
    }

    .htb-step-title {
        font-size: 18px;
    }

    .htb-step-list li {
        font-size: 15px;
    }
}

.htb-steps--guide .htb-steps-container {
    max-width: 920px;
    gap: 52px;
}

.htb-step-heading {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.htb-step-heading .htb-step-title {
    margin: 0;
}

.htb-step-icon {
    color: #059669;
    flex-shrink: 0;
}

.htb-guide-check {
    color: #10b981;
    flex-shrink: 0;
    margin-top: 2px;
}

.htb-steps--guide .htb-step-list li {
    color: #475569;
    font-size: 15.5px;
}

.htb-step-lead {
    margin: 0 0 16px;
    font-size: 15.5px;
    line-height: 1.55;
    color: #64748b;
}

.htb-step-note {
    margin: 14px 0 0;
    font-size: 14.5px;
    line-height: 1.55;
    font-style: italic;
    color: #64748b;
}

.htb-step-note + .htb-step-note {
    margin-top: 8px;
}

.htb-guide-box {
    margin-top: 18px;
    padding: 16px 18px;
    border-radius: 14px;
    font-size: 14.5px;
    line-height: 1.55;
}

.htb-guide-box p {
    margin: 0;
}

.htb-guide-box--info {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    color: #64748b;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.htb-guide-box--info svg {
    color: #94a3b8;
    flex-shrink: 0;
    margin-top: 2px;
}

.htb-guide-box--formula {
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #92400e;
    font-weight: 700;
}

.htb-guide-box--warn {
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-left: 4px solid #f59e0b;
    color: #92400e;
    font-weight: 700;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.htb-guide-box--warn svg {
    color: #d97706;
    flex-shrink: 0;
    margin-top: 1px;
}

.htb-bid-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 4px 0 6px;
}

.htb-bid-card {
    border-radius: 16px;
    padding: 22px 20px;
}

.htb-bid-card--sealed {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
}

.htb-bid-card--blitz {
    background: #fff7ed;
    border: 1px solid #fed7aa;
}

.htb-bid-card-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.htb-bid-card-head h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 800;
}

.htb-bid-card--sealed .htb-bid-card-head {
    color: #1d4ed8;
}

.htb-bid-card--blitz .htb-bid-card-head {
    color: #c2410c;
}

.htb-bid-card > p {
    margin: 0 0 14px;
    font-size: 14.5px;
    line-height: 1.5;
    color: #64748b;
}

.htb-bid-card .htb-step-list {
    margin-bottom: 12px;
}

.htb-bid-card .htb-step-list li {
    font-size: 14.5px;
}

.htb-bid-card-note {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.5;
    font-style: italic;
    color: #94a3b8;
}

.htb-bid-card--blitz .htb-bid-card-note {
    color: #ea580c;
}

@media (max-width: 860px) {
    .htb-bid-grid {
        grid-template-columns: 1fr;
    }
}

/* ─── Strategy tips ──────────────────────────────────────── */
.htb-tips {
    width: 100%;
    background: #f1f5f9;
    padding: 64px 24px 96px;
    box-sizing: border-box;
}

.htb-tips-container {
    max-width: 960px;
    margin: 0 auto;
}

.htb-tips-title {
    margin: 0 0 32px;
    font-size: clamp(24px, 3.5vw, 32px);
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.02em;
    line-height: 1.25;
    text-align: center;
}

.htb-tips-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    align-items: start;
}

.htb-tip-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    padding: 24px 26px;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.htb-tip-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.htb-tip-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #d1fae5;
    color: #059669;
    display: flex;
    align-items: center;
    justify-content: center;
}

.htb-tip-card-title {
    margin: 0;
    font-size: 17px;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.01em;
}

.htb-tip-text {
    margin: 0;
    font-size: 15px;
    line-height: 1.55;
    color: #64748b;
}

.htb-tip-checkcard {
    grid-column: 1 / -1;
    padding: 26px 28px;
}

.htb-tip-checkcard .htb-tip-card-title {
    margin-bottom: 16px;
}

.htb-tip-checklist {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 40px;
}

.htb-tip-checklist .htb-step-list li {
    font-size: 15px;
    color: #475569;
}

@media (max-width: 720px) {
    .htb-tips {
        padding: 48px 16px 48px;
    }

    .htb-tips-grid {
        grid-template-columns: 1fr;
    }

    .htb-tip-card {
        padding: 22px;
    }

    .htb-tip-checklist {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

/* ─── FAQ + CTA ──────────────────────────────────────────── */
.htb-faq {
    width: 100%;
    background: #fff;
    padding: 64px 24px 72px;
    box-sizing: border-box;
}

.htb-faq-container {
    max-width: 820px;
    margin: 0 auto;
}

.htb-faq-title {
    margin: 0 0 28px;
    font-size: clamp(24px, 3.5vw, 32px);
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.02em;
}

.htb-faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 40px;
}

.htb-faq-item {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
    overflow: hidden;
}

.htb-faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
    font-size: 16px;
    font-weight: 700;
    color: #0f172a;
}

.htb-faq-item summary::-webkit-details-marker {
    display: none;
}

.htb-faq-chevron {
    flex-shrink: 0;
    color: #94a3b8;
    transition: transform 0.2s ease;
}

.htb-faq-item[open] .htb-faq-chevron {
    transform: rotate(180deg);
}

.htb-faq-item p {
    margin: 0;
    padding: 16px 20px 18px;
    font-size: 15px;
    line-height: 1.55;
    color: #64748b;
    background: #f8fafc;
    border-top: 1px solid #f1f5f9;
}

.htb-cta {
    text-align: center;
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    border-radius: 20px;
    padding: 40px 32px;
}

.htb-cta-title {
    margin: 0 0 10px;
    font-size: clamp(22px, 3vw, 28px);
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.02em;
}

.htb-cta-desc {
    margin: 0 0 24px;
    font-size: 16px;
    color: #64748b;
}

.htb-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    border-radius: 12px;
    background: #059669;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.2s ease;
}

.htb-cta-btn:hover {
    background: #047857;
    transform: translateY(-1px);
}

.htb-cta--guide {
    text-align: left;
    padding: 36px 40px;
}

.htb-cta--guide .htb-cta-btn {
    border-radius: 999px;
}

.htb-cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.htb-cta-btn--outline {
    background: #fff;
    color: #059669;
    border: 2px solid #059669;
}

.htb-cta-btn--outline:hover {
    background: #ecfdf5;
    color: #047857;
}

.htb-cta-mail {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #64748b;
    font-size: 14.5px;
    text-decoration: none;
}

.htb-cta-mail:hover {
    color: #059669;
}

@media (max-width: 640px) {
    .htb-cta--guide {
        padding: 28px 20px;
    }
}

/* ─── Related reading ────────────────────────────────────── */
.htb-related {
    width: 100%;
    background: #f1f5f9;
    padding: 64px 24px 96px;
    box-sizing: border-box;
}

.htb-related-container {
    max-width: 920px;
    margin: 0 auto;
}

.htb-related-title {
    margin: 0 0 28px;
    font-size: clamp(24px, 3.5vw, 32px);
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.02em;
}

.htb-related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.htb-related-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 22px 20px;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.htb-related-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

.htb-related-card-title {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 800;
    color: #0f172a;
}

.htb-related-card-desc {
    margin: 0;
    font-size: 14px;
    line-height: 1.45;
    color: #64748b;
}

@media (max-width: 900px) {
    .htb-related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .htb-faq {
        padding: 48px 16px 56px;
    }

    .htb-cta {
        padding: 32px 20px;
    }

    .htb-related {
        padding: 48px 16px 72px;
    }

    .htb-related-grid {
        grid-template-columns: 1fr;
    }
}