:root {
    --primary: #0F172A;
    --secondary: #334155;
    --accent: #2563EB;
    --background: #F8FAFC;
    --surface: #FFFFFF;
    --border: #E2E8F0;
    --text-primary: #0F172A;
    --text-secondary: #475569;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.text-muted {
    color: #475569 !important;
}

* {
    box-sizing: border-box;
}

.card-shadow {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

/* ===== header ===== */
.batch-signal-header .js-dropdown-content {
    display: none;
    transform-origin: top;
    animation: dropdownFade 0.2s ease-out;
}

.batch-signal-header .js-dropdown-content:not(.hidden) {
    display: block;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.batch-signal-header .js-mobile-menu.active {
    display: flex;
}

.batch-signal-header .js-dropdown-trigger[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.batch-signal-header .js-dropdown-trigger i {
    transition: transform 0.2s ease;
}

/* ===== hero ===== */
.batch-hero {
    position: relative;
}

.batch-hero-bg {
    pointer-events: none;
}

.batch-hero-overlay {
    pointer-events: none;
}

.batch-hero .container {
    width: 100%;
    max-width: 1280px;
}

.batch-hero h1 {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.batch-hero .btn-primary,
.batch-hero .btn-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 240px;
}

@media (max-width: 640px) {

    .batch-hero .btn-primary,
    .batch-hero .btn-secondary {
        width: 100%;
        min-width: unset;
    }
}

/* ===== featured-case ===== */
.featured-case-block {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.featured-case-block .cta-button {
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2), 0 2px 4px -2px rgba(37, 99, 235, 0.1);
}

.featured-case-block .case-card-shadow {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

@media (max-width: 767px) {
    .featured-case-block h2 {
        hyphens: auto;
    }
}

/* ===== case-collections ===== */
.case-collections .case-collections-card {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), shadow 0.3s ease;
}

.case-collections .case-collections-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.08);
}

/* ===== tariff ===== */
.tariff-block-container .js-email-input::placeholder {
    color: #94A3B8;
    opacity: 1;
}

.tariff-block-container .tariff-card {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tariff-block-container .recommended-card {
    z-index: 10;
}

@media (max-width: 767px) {
    .tariff-block-container .recommended-card {
        transform: none !important;
        margin: 16px 0;
    }
}

/* ===== contractor-questions ===== */
.contractor-questions-section {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.contractor-questions-section .js-question-card {
    will-change: transform;
}

.contractor-questions-section .js-question-card h3 {
    color: #0F172A;
}

.contractor-questions-section .js-question-card p {
    color: #475569;
    line-height: 1.6;
}

@media (max-width: 767px) {
    .contractor-questions-section .js-question-card {
        padding: 1.5rem;
    }
}

/* ===== cost-calculator ===== */
.cost-calculator-block {
    font-family: 'Inter', sans-serif;
}

.cost-calculator-block .animate-fadeIn {
    animation: fadeIn 0.4s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cost-calculator-block .js-result-container.hidden {
    display: none;
}

.cost-calculator-block input[type="number"]::-webkit-inner-spin-button,
.cost-calculator-block input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.cost-calculator-block input::placeholder {
    color: #94A3B8;
    opacity: 1;
}

.cost-calculator-block select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394A3B8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.5em;
}

/* ===== support-response ===== */
.support-response-block {
    font-family: 'Inter', sans-serif;
    overflow: hidden;
}

.support-response-block .support-feature-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.support-response-block .support-feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.08);
    border-color: #CBD5E1;
}

.support-response-block .status-indicator-dot {
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.support-response-block .status-indicator-dot.offline {
    background-color: #94A3B8;
    box-shadow: 0 0 0 4px rgba(148, 163, 184, 0.1);
}

@media (max-width: 767px) {
    .support-response-block .support-feature-card {
        padding: 1.5rem;
    }
}

/* ===== footer ===== */
.batch-signal-footer {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.batch-signal-footer .js-disclaimer-box {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

.batch-signal-footer a {
    transition: all 0.3s ease;
}

.batch-signal-footer .footer-col-nav a,
.batch-signal-footer .footer-col-legal a {
    position: relative;
}

.batch-signal-header .js-dropdown-content {
    display: none;
    transform-origin: top;
    animation: dropdownFade 0.2s ease-out;
}

.batch-signal-header .js-dropdown-content:not(.hidden) {
    display: block;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.batch-signal-header .js-mobile-menu.active {
    display: flex;
}

.batch-signal-header .js-dropdown-trigger[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.batch-signal-header .js-dropdown-trigger i {
    transition: transform 0.2s ease;
}

.batch-hero {
    position: relative;
}

.batch-hero-bg {
    pointer-events: none;
}

.batch-hero-overlay {
    pointer-events: none;
}

.batch-hero h1 {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.batch-signal-footer {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.batch-signal-footer .js-disclaimer-box {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

.batch-signal-footer a {
    transition: all 0.3s ease;
}

.repeat-theme-page .js-grid-item {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.repeat-theme-page select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394A3B8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.25rem;
}


/* ===== PAGE: bambu-studio ===== */
.bambu-studio-page .js-eval-item.active .js-checkbox { background-color: #2563EB; border-color: #2563EB; } .bambu-studio-page .js-eval-item.active .ph-check { display: block; color: #FFFFFF; } .bambu-studio-page .custom-shadow { box-shadow: 0 20px 25px -5px rgba(0,0,0,0.04), 0 8px 10px -6px rgba(0,0,0,0.04); } .bambu-studio-page .btn-hover { transition: transform 0.2s ease, box-shadow 0.2s ease; } .bambu-studio-page .btn-hover:hover { transform: translateY(-2px); box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.4); }

/* ===== PAGE: control-methodology ===== */
.methodology-section .js-result-content { transition: all 0.3s ease; }
.methodology-section input::placeholder { color: #475569; }
.methodology-section .status-green { background-color: #10B981; color: white; }
.methodology-section .status-yellow { background-color: #F59E0B; color: white; }
.methodology-section .status-red { background-color: #EF4444; color: white; }

/* ===== PAGE: about ===== */
.about-project .js-tab-btn.active { background-color: #2563EB; color: #FFFFFF; border-color: #2563EB; }.about-project .js-tab-btn { transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }.about-project .js-tab-content.hidden { display: none; }.about-project .container { max-width: 1200px; }

/* ===== PAGE: contact ===== */
.contact-section .contact-card-list .contact-item { transition: transform 0.3s ease, box-shadow 0.3s ease; }.contact-section .contact-card-list .contact-item:hover { transform: translateY(-4px); box-shadow: 0 25px 30px -5px rgba(0,0,0,0.06); }.contact-section .form-container input::placeholder, .contact-section .form-container textarea::placeholder { color: #94A3B8; opacity: 1; }.contact-section .form-container input:focus, .contact-section .form-container textarea:focus { border-color: #2563EB; background-color: #FFFFFF; }.contact-section .js-submit-btn { min-height: 56px; display: flex; align-items: center; justify-content: center; cursor: pointer; }

/* ===== PAGE: privacy ===== */
.privacy-content .privacy-card {
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.04), 0 8px 10px -6px rgba(0,0,0,0.04);
}

.privacy-content .privacy-block {
  position: relative;
}

.privacy-content .privacy-block:not(:last-child)::after {
  content: '';
  position: absolute;
  bottom: -1.5rem;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: #E2E8F0;
  opacity: 0.5;
}

.privacy-content ul li::marker {
  color: #2563EB;
}

.privacy-content a {
  color: #2563EB;
  text-decoration: none;
  transition: color 0.2s ease;
}

.privacy-content a:hover {
  text-decoration: underline;
  color: #1D4ED8;
}

/* ===== PAGE: terms ===== */
.terms-content .js-terms-nav a.active { color: #2563EB; font-weight: 600; border-right: 2px solid #2563EB; } .terms-content main h2 { color: #0F172A; } .terms-content main p { line-height: 1.8; color: #475569; } .terms-content aside .sticky { transition: all 0.3s ease; } .terms-content .list-disc li::marker { color: #2563EB; }

/* ===== PAGE: disclaimer ===== */
.disclaimer-content-block .disclaimer-item:last-child { margin-bottom: 0; } .disclaimer-content-block h1, .disclaimer-content-block h2 { letter-spacing: -0.025em; } .disclaimer-content-block p { hyphens: auto; }

.comment-avatar {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    object-fit: cover;
    border: 1px solid #E2E8F0;
}

.shadow-soft {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

.comment-main-card {
    transition: transform 0.2s ease;
}

.comment-main-card:hover {
    transform: translateY(-2px);
}

.comment-avatar-reply {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid #E2E8F0;
}

.comment-reply-card {
    transition: background-color 0.2s ease;
}

.comment-reply-card:hover {
    background-color: #FFFFFF;
}


/* ===== PAGE TEMPLATE: series-comparison ===== */
.batch-signal-header .js-dropdown-content {
    display: none;
    transform-origin: top;
    animation: dropdownFade 0.2s ease-out;
}

.batch-signal-header .js-dropdown-content:not(.hidden) {
    display: block;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.batch-signal-header .js-mobile-menu.active {
    display: flex;
}

.batch-signal-header .js-dropdown-trigger[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.batch-signal-header .js-dropdown-trigger i {
    transition: transform 0.2s ease;
}

.detail-page-wrapper .article-content h2,
.detail-page-wrapper .article-content h3 {
    color: #0F172A;
}

.detail-page-wrapper .article-content p {
    margin-bottom: 1.5rem;
}

.detail-page-wrapper .shadow-soft {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

.batch-signal-footer .js-disclaimer-box {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

/* ===== PAGE TEMPLATE: deviation-database ===== */
.batch-signal-header .js-dropdown-content {
    display: none;
    transform-origin: top;
    animation: dropdownFade 0.2s ease-out;
}

.batch-signal-header .js-dropdown-content:not(.hidden) {
    display: block;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.batch-signal-header .js-mobile-menu.active {
    display: flex;
}

.batch-signal-header .js-dropdown-trigger[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.batch-signal-header .js-dropdown-trigger i {
    transition: transform 0.2s ease;
}

.detail-page-wrapper .article-content h2,
.detail-page-wrapper .article-content h3 {
    color: #0F172A;
}

.detail-page-wrapper .article-content p {
    margin-bottom: 1.5rem;
}

.detail-page-wrapper .shadow-soft {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

.batch-signal-footer .js-disclaimer-box {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

/* ===== PAGE TEMPLATE: materials-testing ===== */
.batch-signal-header .js-dropdown-content {
    display: none;
    transform-origin: top;
    animation: dropdownFade 0.2s ease-out;
}

.batch-signal-header .js-dropdown-content:not(.hidden) {
    display: block;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.batch-signal-header .js-mobile-menu.active {
    display: flex;
}

.batch-signal-header .js-dropdown-trigger[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.batch-signal-header .js-dropdown-trigger i {
    transition: transform 0.2s ease;
}

.detail-page-wrapper .article-content h2,
.detail-page-wrapper .article-content h3 {
    color: #0F172A;
}

.detail-page-wrapper .article-content p {
    margin-bottom: 1.5rem;
}

.detail-page-wrapper .shadow-soft {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

.batch-signal-footer .js-disclaimer-box {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}