/* ==========================================================================
   SerPan Cold (serpancold.com) - Industrial Cold Chain Design System v2.0
   Compliant with SERPAN_COLD Section 6.2 / E03 & rules.md (Zero External CDN)
   ========================================================================== */

:root {
    --brand-navy: #102B3F;
    --brand-navy-dark: #0A1D2B;
    --brand-teal: #0A6B83;
    --brand-teal-hover: #08576B;
    --brand-cyan: #35C9D0;
    --action: #F29B38;
    --action-hover: #E98C25;
    --action-text: #102B3F; /* 6.61:1 contrast on #F29B38 */
    --whatsapp: #25D366;
    --whatsapp-dark: #1DA851;
    --surface-white: #FFFFFF;
    --surface-ice: #EDF6FA;
    --surface-soft: #F5F8FB;
    --text-primary: #172F40;
    --text-muted: #526674;
    --border-soft: #D6E2E9;
    --border-input: #718391;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 2px 8px rgba(16, 43, 63, 0.06);
    --shadow-md: 0 8px 24px rgba(16, 43, 63, 0.10);
    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: clip;
}

body {
    margin: 0;
    padding-top: 103px;
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--surface-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;
    max-width: 100vw;
    position: relative;
}

img, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

.icon-svg {
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
}

a {
    color: var(--brand-teal);
    text-decoration: none;
    transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

a:hover {
    color: var(--brand-navy);
}

:is(.site-footer, .top-bar, .hero-section, .page-hero, .section--navy, .cta-banner) a:not(.btn):hover {
    color: var(--brand-cyan);
}

.skip-link {
    position: absolute;
    top: -100px;
    inset-inline-start: 16px;
    background: var(--action);
    color: var(--action-text);
    padding: 8px 16px;
    font-weight: 700;
    z-index: 9999;
    border-radius: var(--radius-sm);
}

.skip-link:focus {
    top: 12px;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin-inline: auto;
    padding-inline: 20px;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--brand-navy);
    line-height: 1.25;
    margin-top: 0;
    font-weight: 700;
}

h1 {
    font-size: clamp(1.75rem, 2.8vw, 2.55rem);
    margin-bottom: 16px;
}

h2 {
    font-size: clamp(1.35rem, 2.1vw, 1.85rem);
    margin-bottom: 14px;
}

h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

p {
    margin-top: 0;
    margin-bottom: 14px;
}

/* Badges & Pills */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 11px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: 999px;
    white-space: nowrap;
    flex-shrink: 0;
    line-height: 1.2;
}

.badge--teal {
    background-color: var(--surface-ice);
    color: var(--brand-teal);
    border: 1px solid #BEE0EC;
}

.badge--cyan {
    background-color: rgba(53, 201, 208, 0.16);
    color: var(--brand-cyan);
    border: 1px solid rgba(53, 201, 208, 0.35);
}

.badge--action {
    background-color: var(--action);
    color: var(--action-text);
}

.badge--outline {
    background-color: rgba(255, 255, 255, 0.12);
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.28);
}

.code-pill {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    align-self: flex-start;
    white-space: nowrap;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    font-weight: 700;
    padding: 4px 8px;
    background-color: var(--surface-ice);
    color: var(--brand-navy);
    border: 1px solid var(--border-soft);
    border-radius: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    font-size: 0.94rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.18s ease;
    line-height: 1.2;
    white-space: nowrap;
    flex-shrink: 0;
}

.btn--sm {
    padding: 8px 14px;
    font-size: 0.85rem;
}

.btn--xs {
    padding: 6px 11px;
    font-size: 0.80rem;
}

.btn--lg {
    padding: 14px 24px;
    font-size: 1rem;
}

.btn--block {
    display: flex;
    width: 100%;
}

.btn--action {
    background-color: var(--action);
    color: var(--action-text);
    border-color: var(--action);
}

.btn--action:hover {
    background-color: var(--action-hover);
    border-color: var(--action-hover);
    color: var(--action-text);
}

.btn--teal {
    background-color: var(--brand-teal);
    color: #FFFFFF;
    border-color: var(--brand-teal);
}

.btn--teal:hover {
    background-color: var(--brand-teal-hover);
    border-color: var(--brand-teal-hover);
    color: #FFFFFF;
}

.btn--whatsapp {
    background-color: var(--whatsapp);
    color: #072614;
    border-color: var(--whatsapp);
}

.btn--whatsapp:hover {
    background-color: var(--whatsapp-dark);
    color: #FFFFFF;
}

.btn--outline {
    background-color: #FFFFFF;
    color: var(--brand-navy);
    border-color: var(--border-input);
}

.btn--outline:hover {
    background-color: var(--surface-ice);
    border-color: var(--brand-teal);
    color: var(--brand-teal);
}

.btn--outline-light {
    background-color: transparent;
    color: #FFFFFF;
    border-color: rgba(255, 255, 255, 0.55);
}

.btn--outline-light:hover {
    background-color: rgba(255, 255, 255, 0.12);
    color: #FFFFFF;
}

/* Header & Top Bar */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1050;
    width: 100%;
    background: var(--surface-white);
    box-shadow: 0 4px 16px rgba(16, 43, 63, 0.10);
}

.top-bar {
    background-color: var(--brand-navy-dark);
    color: #D6E2E9;
    font-size: 0.80rem;
    padding-block: 7px;
}

.top-bar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.top-bar__left, .top-bar__right {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.top-bar__badge, .top-bar__loc, .top-bar__phone, .top-bar__link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: #E5EFF5;
}

.top-bar__phone:hover,
.top-bar__link:hover {
    color: var(--brand-cyan);
}

.top-bar__phone:hover strong {
    color: #FFB65C;
}

.top-bar__phone strong {
    color: var(--action);
}

.top-bar__enquiry {
    background: rgba(255, 255, 255, 0.1);
    padding: 3px 9px;
    border-radius: 99px;
}

.enquiry-count-badge {
    background: var(--action);
    color: var(--action-text);
    font-weight: 800;
    font-size: 0.72rem;
    padding: 1px 6px;
    border-radius: 99px;
}

.lang-switcher {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.lang-switcher__item {
    padding: 2px 6px;
    font-size: 0.74rem;
    font-weight: 700;
    color: #C4D6E2;
    border-radius: 4px;
}

.lang-switcher__item.is-active,
.lang-switcher__item:hover {
    background: var(--brand-teal);
    color: #FFFFFF;
}

/* Main Navigation */
.main-nav-wrap {
    background: var(--surface-white);
    border-bottom: 1px solid var(--border-soft);
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    min-height: 68px;
    flex-wrap: nowrap;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--brand-navy);
    flex-shrink: 0;
    white-space: nowrap;
}

.brand-logo__mark {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--brand-navy);
    color: var(--brand-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.brand-logo__title {
    display: block;
    font-size: 1.18rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--brand-navy);
    line-height: 1.1;
    white-space: nowrap;
}

.brand-logo__title strong {
    color: var(--brand-teal);
}

.brand-logo__sub {
    display: block;
    font-size: 0.68rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.desktop-nav {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 2px;
    flex-wrap: nowrap;
}

.nav-item {
    position: relative;
    flex-shrink: 0;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 9px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--brand-navy);
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.nav-link:hover {
    background-color: var(--surface-ice);
    color: var(--brand-teal);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    inset-inline-start: 0;
    min-width: 270px;
    width: max-content;
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 8px;
    display: none;
    flex-direction: column;
    gap: 2px;
    z-index: 950;
}

.nav-item:nth-last-child(-n+2) .dropdown-menu {
    inset-inline-start: auto;
    inset-inline-end: 0;
}

.nav-item.has-dropdown:hover .dropdown-menu,
.nav-item.has-dropdown:focus-within .dropdown-menu {
    display: flex;
}

.dropdown-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.dropdown-link:hover {
    background-color: var(--surface-ice);
    color: var(--brand-teal);
}

.dropdown-link--head {
    background-color: var(--surface-soft);
    color: var(--brand-navy);
    font-weight: 700;
    border-bottom: 1px solid var(--border-soft);
    margin-bottom: 4px;
}

.main-nav__actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
    white-space: nowrap;
}

.main-nav__actions .btn {
    padding: 8px 12px;
    font-size: 0.83rem;
    gap: 5px;
    white-space: nowrap;
}

.mobile-menu-toggle {
    display: none;
    background: var(--surface-ice);
    border: 1px solid var(--border-soft);
    color: var(--brand-navy);
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

/* Off-Canvas Mobile Menu (rules.md Madde 36: Right-sliding, 80% max 320px) */
.offcanvas-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(16, 43, 63, 0.55);
    backdrop-filter: blur(3px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    z-index: 1100;
}

.offcanvas-backdrop.is-open {
    opacity: 1;
    visibility: visible;
}

.offcanvas-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--surface-white);
    box-shadow: -6px 0 28px rgba(16, 43, 63, 0.25);
    transform: translateX(100%);
    transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 1200;
    display: flex;
    flex-direction: column;
}

.offcanvas-drawer.is-open {
    transform: translateX(0);
}

.offcanvas-drawer__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    background: var(--brand-navy);
    color: #FFFFFF;
}

.offcanvas-drawer__brand {
    font-size: 1.15rem;
    font-weight: 800;
}

.offcanvas-drawer__brand strong {
    color: var(--brand-cyan);
}

.offcanvas-drawer__close {
    background: transparent;
    border: none;
    color: #FFFFFF;
    cursor: pointer;
    padding: 4px;
}

.offcanvas-drawer__body {
    padding: 16px 18px;
    overflow-y: auto;
    flex: 1;
}

.offcanvas-nav-list {
    list-style: none;
    padding: 0;
    margin: 0 0 18px 0;
}

.offcanvas-nav-list li {
    border-bottom: 1px solid var(--border-soft);
}

.offcanvas-nav-list a {
    display: block;
    padding: 10px 4px;
    font-weight: 600;
    color: var(--brand-navy);
    font-size: 0.92rem;
}

.offcanvas-drawer__langs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.offcanvas-lang-chip {
    padding: 4px 10px;
    border: 1px solid var(--border-soft);
    border-radius: 4px;
    font-size: 0.80rem;
    font-weight: 700;
    color: var(--brand-navy);
}

.offcanvas-lang-chip.is-active {
    background: var(--brand-teal);
    color: #FFFFFF;
    border-color: var(--brand-teal);
}

.offcanvas-drawer__cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #102B3F 0%, #0D3B54 100%);
    color: #FFFFFF;
    padding-block: 56px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 36px;
    align-items: center;
}

.hero-content h1 {
    color: #FFFFFF;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.hero-lead {
    font-size: 1.08rem;
    color: #DCEAF2;
    margin-bottom: 24px;
}

.hero-cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    padding-top: 20px;
}

.hero-metric strong {
    display: block;
    color: var(--brand-cyan);
    font-size: 1.05rem;
}

.hero-metric span {
    font-size: 0.82rem;
    color: #C9DCE8;
}

.hero-image-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.hero-image-card img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.hero-image-caption {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    font-size: 0.84rem;
    color: #E5F2F8;
    background: rgba(10, 29, 43, 0.75);
}

/* Sections & Grids */
.section {
    padding-block: 56px;
}

.section--ice {
    background-color: var(--surface-ice);
}

.section--soft {
    background-color: var(--surface-soft);
}

.section--navy {
    background-color: var(--brand-navy);
    color: #FFFFFF;
}

.section-header {
    margin-bottom: 32px;
}

.section-header h2 {
    margin-top: 8px;
}

.section-header p {
    color: var(--text-muted);
    max-width: 780px;
}

.section-header--light h2 {
    color: #FFFFFF;
}

.section-header--light p {
    color: #D2E3EE;
}

.card-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.card-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.card-grid-5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

/* Cards */
.pathway-card,
.feature-card,
.product-card,
.package-card {
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    padding: 22px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 8px;
}

.feature-card h3,
.feature-card h4,
.package-card h3,
.package-card h4 {
    margin: 4px 0 2px;
    font-size: 1rem;
    line-height: 1.35;
}

.feature-card p:last-child,
.package-card p:last-child {
    margin-bottom: 0;
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.feature-card .link-arrow,
.feature-card .feature-card__footer {
    margin-top: auto;
    padding-top: 6px;
}

.pathway-card--highlight {
    border: 2px solid var(--brand-teal);
    background: linear-gradient(180deg, #FFFFFF 0%, #EDF6FA 100%);
}

.pathway-card__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    width: 100%;
    margin-bottom: 14px;
}

.pathway-card__icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--surface-ice);
    color: var(--brand-teal);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.product-card {
    padding: 0;
    overflow: hidden;
}

.product-card__media {
    position: relative;
    background: var(--surface-soft);
    border-bottom: 1px solid var(--border-soft);
}

.product-card__media img {
    width: 100%;
    height: 205px;
    object-fit: cover;
}

.product-card__badge {
    position: absolute;
    top: 10px;
    inset-inline-start: 10px;
    background: var(--brand-navy);
    color: #FFFFFF;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    font-weight: 700;
    padding: 4px 9px;
    border-radius: 4px;
}

.product-card__body {
    padding: 18px 18px 18px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-card__body h3 {
    font-size: 1.05rem;
    line-height: 1.3;
    min-height: 2.6em;
    margin-bottom: 8px;
}

.product-card__desc {
    font-size: 0.86rem;
    color: var(--text-muted);
    line-height: 1.5;
    flex: 1;
    margin-bottom: 14px;
}

.product-card__specs {
    list-style: none;
    padding: 8px 10px;
    margin: auto 0 14px 0;
    background: var(--surface-soft);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    font-size: 0.80rem;
}

.product-card__specs li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 5px 0;
    border-bottom: 1px dashed var(--border-soft);
    white-space: nowrap;
}

.product-card__specs li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.product-card__specs li:first-child {
    padding-top: 0;
}

.product-card__specs li span {
    color: var(--text-muted);
    font-size: 0.76rem;
    font-weight: 600;
    flex-shrink: 0;
}

.product-card__specs li strong {
    color: var(--brand-navy);
    font-size: 0.78rem;
    font-weight: 700;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: end;
}

.product-card__actions {
    display: flex;
    align-items: center;
    width: 100%;
}

.product-card__actions .btn {
    padding: 9px 14px;
    font-size: 0.84rem;
    gap: 6px;
    width: 100%;
    justify-content: center;
    min-width: 0;
}

.concept-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-md);
    padding: 20px;
    color: #EAF3F8;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.concept-card h3 a {
    color: #FFFFFF;
}

.concept-card h3 a:hover {
    color: var(--brand-cyan);
}

.concept-card__top {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.concept-card__dims {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(53, 201, 208, 0.12);
    border: 1px solid rgba(53, 201, 208, 0.28);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--brand-cyan);
    white-space: nowrap;
}

.concept-card__list {
    padding-inline-start: 18px;
    font-size: 0.85rem;
    color: #D2E3EE;
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-weight: 700;
    font-size: 0.86rem;
    color: var(--brand-teal);
    white-space: nowrap;
}

/* Breadcrumb & Page Hero */
.breadcrumb-bar {
    background: var(--surface-soft);
    border-bottom: 1px solid var(--border-soft);
    padding-block: 10px;
    font-size: 0.84rem;
}

.breadcrumb-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.breadcrumb-sep {
    color: var(--text-muted);
    margin-inline-start: 6px;
}

.page-hero {
    background: linear-gradient(135deg, #102B3F 0%, #153E5C 100%);
    color: #FFFFFF;
    padding-block: 42px;
}

.page-hero h1 {
    color: #FFFFFF;
    margin-top: 10px;
}

.page-hero__grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 32px;
    align-items: center;
}

.page-hero__lead {
    font-size: 1.05rem;
    color: #DCEAF2;
    margin-bottom: 20px;
}

.page-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.page-hero__media img {
    border-radius: var(--radius-md);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.page-body {
    padding-block: 36px;
}

/* Quick Info Card (rules.md Madde 25) */
.quick-info-card {
    background: var(--surface-ice);
    border: 2px solid #B8DCEB;
    border-radius: var(--radius-md);
    padding: 22px;
    margin-bottom: 32px;
}

.quick-info-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-soft);
}

.quick-info-card__title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.quick-info-card__title h2 {
    margin: 0;
    font-size: 1.2rem;
}

.quick-info-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.quick-info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.quick-info-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.quick-info-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.quick-info-grid--4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.quick-info-grid--5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.quick-info-item {
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-top: 3px solid var(--brand-teal);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    box-shadow: 0 2px 6px rgba(13, 39, 61, 0.04);
}

.quick-info-item__top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.quick-info-item__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 6px;
    background: rgba(15, 111, 168, 0.1);
    color: var(--brand-teal);
    flex-shrink: 0;
}

.quick-info-item__label {
    display: block;
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    line-height: 1.25;
}

.quick-info-item__val {
    display: block;
    font-size: 0.94rem;
    color: var(--brand-navy);
    margin-top: 2px;
    line-height: 1.4;
}

/* Content Blocks & Tables */
.content-block {
    margin-bottom: 36px;
}

.table-responsive {
    width: 100%;
    overflow: hidden;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    background: var(--surface-white);
}

.tech-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.87rem;
}

.tech-table th,
.tech-table td {
    padding: 11px 12px;
    text-align: start;
    border-bottom: 1px solid var(--border-soft);
    vertical-align: middle;
}

.tech-table td:first-child,
.tech-table td:last-child {
    white-space: nowrap;
}

.tech-table th {
    background-color: var(--brand-navy);
    color: #FFFFFF;
    font-weight: 700;
    white-space: nowrap;
}

.tech-table tr:nth-child(even) td {
    background-color: var(--surface-soft);
}

.tech-table tr.row-highlight td {
    background-color: #FFFBEB;
}

/* 9-Layer Galvanized Steel Cross-Section Anatomy */
.layer-anatomy-section {
    margin-top: 38px;
    margin-bottom: 38px;
    background: var(--surface-soft);
    border: 1.5px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: 26px;
}

.layer-anatomy-header {
    margin-bottom: 22px;
}

.layer-anatomy-header h3 {
    font-size: clamp(1.2rem, 1.8vw, 1.48rem);
    margin: 10px 0 8px;
    color: var(--brand-navy);
}

.layer-anatomy-header p {
    margin: 0;
    color: var(--text-muted);
    max-width: 920px;
    font-size: 0.94rem;
}

.layer-anatomy-grid {
    display: grid;
    grid-template-columns: 410px minmax(0, 1fr);
    gap: 22px;
    align-items: stretch;
}

.layer-anatomy-visual {
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    padding: 18px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 14px;
}

.layer-anatomy-visual__head h4 {
    font-size: 1.02rem;
    margin: 8px 0 4px;
    color: var(--brand-navy);
}

.layer-anatomy-visual__head p {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin: 0 0 10px;
    line-height: 1.42;
}

.layer-anatomy-svg-wrap {
    width: 100%;
    overflow: hidden;
    border-radius: var(--radius-sm);
}

.layer-anatomy-svg {
    width: 100%;
    height: auto;
    display: block;
}

.layer-coating-matrix {
    background: var(--surface-soft);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: 12px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.layer-coating-matrix__title {
    font-size: 0.73rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--brand-teal);
    padding-bottom: 8px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border-soft);
}

.layer-coating-matrix__list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 7px;
    flex: 1;
}

.layer-coating-matrix__row {
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-inline-start: 3px solid var(--brand-teal);
    border-radius: 5px;
    padding: 7px 10px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.layer-coating-matrix__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 2px;
}

.layer-coating-matrix__head strong {
    font-size: 0.82rem;
    color: var(--brand-navy);
}

.layer-coating-matrix__tag {
    font-family: var(--font-mono);
    font-size: 0.69rem;
    font-weight: 700;
    color: var(--brand-teal);
    background: var(--surface-ice);
    border: 1px solid #BEE0EC;
    padding: 1px 6px;
    border-radius: 99px;
}

.layer-coating-matrix__row p {
    margin: 0;
    font-size: 0.76rem;
    color: var(--text-muted);
    line-height: 1.35;
}

.layer-anatomy-visual__bottom {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: auto;
}

.layer-spec-mini-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.layer-spec-mini {
    background: var(--surface-ice);
    border: 1px solid #C6E3F0;
    border-radius: var(--radius-sm);
    padding: 8px 10px;
}

.layer-spec-mini span {
    display: block;
    font-size: 0.70rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
}

.layer-spec-mini strong {
    display: block;
    font-size: 0.82rem;
    color: var(--brand-navy);
    margin-top: 2px;
}

.layer-anatomy-note {
    background: #FFFBEB;
    border: 1px solid #FCD34D;
    border-inline-start: 4px solid var(--action);
    border-radius: var(--radius-sm);
    padding: 11px 13px;
}

.layer-anatomy-note strong {
    display: block;
    font-size: 0.82rem;
    color: #92400E;
    margin-bottom: 3px;
}

.layer-anatomy-note p {
    margin: 0;
    font-size: 0.79rem;
    color: #78350F;
    line-height: 1.45;
}

.layer-anatomy-stack {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 14px;
}

.layer-zone {
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    box-shadow: var(--shadow-sm);
}

.layer-zone--core {
    background: linear-gradient(135deg, #102B3F 0%, #153E5C 100%);
    border: 2px solid var(--action);
    padding: 14px 16px;
}

.layer-zone__header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--brand-teal);
    padding-bottom: 10px;
    margin-bottom: 10px;
    border-bottom: 1px solid var(--border-soft);
}

.layer-zone__header--core {
    color: var(--brand-cyan);
    border-bottom-color: rgba(255, 255, 255, 0.16);
}

.layer-zone__header--amber {
    color: #B45309;
}

.layer-zone__dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    flex-shrink: 0;
}

.layer-zone__dot--teal {
    background: var(--brand-teal);
}

.layer-zone__dot--action {
    background: var(--action);
}

.layer-zone__dot--amber {
    background: #D97706;
}

.layer-zone__list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.layer-row {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
    border: 1px solid var(--border-soft);
    border-inline-start: 4px solid var(--brand-teal);
    transition: border-color 0.16s ease, background-color 0.16s ease;
}

.layer-row:hover {
    background: var(--surface-ice);
}

.layer-row--bottom {
    border-inline-start-color: #D97706;
}

.layer-row--bottom:hover {
    background: #FFFBEB;
}

.layer-row--core {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-inline-start: 4px solid var(--action);
    padding: 12px 14px;
}

.layer-row--core:hover {
    background: rgba(255, 255, 255, 0.11);
}

.layer-row__badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--surface-white);
    border: 1px solid #BEE0EC;
    border-radius: 6px;
    padding: 5px 6px;
    text-align: center;
}

.layer-row__badge--bottom {
    border-color: #FCD34D;
    background: #FFFBEB;
}

.layer-row__badge--core {
    background: var(--action);
    border-color: var(--action);
}

.layer-row__lbl {
    font-size: 0.60rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-muted);
    line-height: 1.1;
}

.layer-row__badge--core .layer-row__lbl {
    color: var(--brand-navy);
}

.layer-row__num {
    font-family: var(--font-mono);
    font-size: 0.96rem;
    font-weight: 900;
    color: var(--brand-navy);
    line-height: 1.2;
    margin-top: 1px;
}

.layer-row__badge--bottom .layer-row__num {
    color: #92400E;
}

.layer-row__body {
    min-width: 0;
}

.layer-row__title-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 3px;
}

.layer-row__title-bar h4 {
    margin: 0;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--brand-navy);
    line-height: 1.3;
}

.layer-row--core .layer-row__title-bar h4 {
    color: #FFFFFF;
    font-size: 0.96rem;
}

.layer-row__spec {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--surface-ice);
    color: var(--brand-teal);
    border: 1px solid #BEE0EC;
    white-space: nowrap;
    flex-shrink: 0;
}

.layer-row__spec--bottom {
    background: #FEF3C7;
    color: #92400E;
    border-color: #FDE68A;
}

.layer-row__spec--core {
    background: rgba(53, 201, 208, 0.18);
    color: var(--brand-cyan);
    border-color: rgba(53, 201, 208, 0.40);
}

.layer-row__body p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.45;
}

.layer-row--core .layer-row__body p {
    color: #DCEAF2;
}

/* CAD Diagrams */
.cad-diagrams-section {
    margin-block: 36px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.cad-card {
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    padding: 22px;
    box-shadow: var(--shadow-sm);
}

.cad-svg-wrap {
    margin-top: 14px;
    width: 100%;
    overflow: hidden;
}

.cad-svg {
    width: 100%;
    min-width: 0;
    height: auto;
}

/* Simulator Hub (T04) */
.simulator-box {
    background: var(--surface-white);
    border: 2px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: 26px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-sm);
}

.simulator-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 18px;
}

.simulator-results {
    background: var(--surface-ice);
    border: 1px solid #B8DCEB;
    border-radius: var(--radius-md);
    padding: 20px;
}

.sim-metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 14px;
}

.sim-metric {
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
}

.sim-metric span {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sim-metric strong {
    display: block;
    font-size: 0.94rem;
    color: var(--brand-navy);
    margin-top: 2px;
}

.sim-disclaimer {
    font-size: 0.78rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.7);
    padding: 8px 10px;
    border-radius: 4px;
}

/* 4-Pathway Lead Form */
.lead-form-section {
    margin-block: 40px;
}

.lead-form-card {
    background: var(--surface-soft);
    border: 2px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.pathway-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-block: 20px;
}

.pathway-tab {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 11px 10px;
    background: var(--surface-white);
    border: 2px solid var(--border-soft);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--brand-navy);
    cursor: pointer;
    text-align: start;
    white-space: nowrap;
}

.pathway-tab.is-active {
    background: var(--brand-navy);
    color: #FFFFFF;
    border-color: var(--brand-navy);
}

.pathway-panel {
    display: none;
    margin-bottom: 16px;
}

.pathway-panel.is-active {
    display: block;
}

.form-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 14px;
    align-items: end;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-bottom: 12px;
    min-width: 0;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--brand-navy);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    font-size: 0.92rem;
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--surface-white);
    border: 1.5px solid var(--border-input);
    border-radius: var(--radius-sm);
}

.form-control:focus {
    outline: 2px solid var(--brand-teal);
    border-color: var(--brand-teal);
}

.form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-soft);
}

.form-kvkk-note {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    color: var(--text-muted);
    max-width: 600px;
}

/* FAQ Accordion */
.faq-section {
    margin-block: 40px;
}

.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.faq-item {
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 18px;
    cursor: pointer;
    font-weight: 700;
    color: var(--brand-navy);
    list-style: none;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question__code {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    background: var(--surface-ice);
    color: var(--brand-teal);
    padding: 3px 7px;
    border-radius: 4px;
}

.faq-question__text {
    flex: 1;
}

.faq-answer {
    padding: 0 18px 16px 56px;
    color: var(--text-primary);
    font-size: 0.94rem;
}

/* PSEO Chips & Sitemap */
.chip-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pseo-chip {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    background: var(--surface-white);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--brand-navy);
    cursor: pointer;
}

.pseo-chip:hover,
.pseo-chip--all {
    background: var(--brand-teal);
    color: #FFFFFF;
    border-color: var(--brand-teal);
}

.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.sitemap-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    background: var(--surface-soft);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--brand-navy);
}

.search-form-bar {
    display: flex;
    gap: 10px;
    max-width: 680px;
    margin-top: 16px;
}

.guide-toc {
    background: var(--surface-ice);
    border: 1px solid #B8DCEB;
    border-radius: var(--radius-md);
    padding: 18px 22px;
    margin-bottom: 28px;
}

/* CTA Banner */
.cta-banner {
    background: linear-gradient(135deg, #102B3F 0%, #0A6B83 100%);
    color: #FFFFFF;
    border-radius: var(--radius-lg);
    padding: 36px;
    margin-block: 40px;
}

.cta-banner__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    flex-wrap: wrap;
}

.cta-banner__content {
    max-width: 680px;
}

.cta-banner__content h2 {
    color: #FFFFFF;
    margin-top: 8px;
}

.cta-banner__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 0.86rem;
    color: #E2F1F8;
    margin-top: 14px;
}

.cta-banner__actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-width: 260px;
}

/* Footer */
.site-footer {
    background-color: var(--brand-navy);
    color: #D6E2E9;
    margin-top: 48px;
}

.ecosystem-strip {
    background-color: var(--brand-navy-dark);
    padding-block: 28px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-top: 14px;
}

.ecosystem-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-sm);
    padding: 12px;
    color: #FFFFFF;
    transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.ecosystem-card:hover {
    background: rgba(255, 255, 255, 0.11);
    border-color: var(--brand-cyan);
    color: #FFFFFF;
    transform: translateY(-2px);
}

.ecosystem-card:hover strong {
    color: #FFFFFF;
}

.ecosystem-card strong {
    display: block;
    color: var(--brand-cyan);
    font-size: 0.92rem;
}

.ecosystem-card span {
    display: block;
    font-size: 0.78rem;
    color: #C2D4E0;
    margin-top: 3px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
    gap: 32px;
    padding-block: 44px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 12px;
}

.footer-logo:hover {
    color: var(--brand-cyan);
}

.footer-logo strong {
    color: var(--brand-cyan);
}

.footer-desc {
    font-size: 0.86rem;
    color: #C2D4E0;
}

.footer-contact-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 14px;
}

.footer-contact-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: background-color 0.18s ease, border-color 0.18s ease;
}

.footer-contact-item:hover {
    background: rgba(255, 255, 255, 0.10);
    border-color: rgba(53, 201, 208, 0.35);
}

.footer-contact-item__label {
    display: block;
    font-size: 0.72rem;
    color: #9EB6C7;
    text-transform: uppercase;
}

.footer-contact-item__val {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--action);
    font-size: 0.92rem;
}

.footer-contact-item__val:hover,
.footer-contact-item__val:focus {
    color: #FFFFFF;
}

.footer-contact-item__val:hover strong,
.footer-contact-item__val:hover span {
    color: #FFFFFF;
}

.footer-contact-item__val--muted {
    color: #D6E2E9;
    font-size: 0.85rem;
}

.footer-heading {
    color: #FFFFFF;
    font-size: 1rem;
    margin-bottom: 14px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.86rem;
}

.footer-links a {
    color: #C8DAE6;
}

.footer-links a:hover {
    color: var(--brand-cyan);
}

.footer-locations {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding-block: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 0.82rem;
}

.footer-loc-box strong {
    color: var(--brand-cyan);
    display: block;
}

.footer-bottom {
    background: var(--brand-navy-dark);
    padding-block: 16px;
    font-size: 0.82rem;
}

.footer-bottom__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-copy {
    margin: 0;
}

.footer-legal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-legal-links a {
    color: #C2D4E0;
}

.footer-legal-links a:hover {
    color: var(--brand-cyan);
}

/* Floating Scroll-to-Top (Bottom-Left - rules.md Madde 37) */
.floating-scroll-top {
    position: fixed;
    bottom: 24px;
    left: 20px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--brand-navy);
    color: #FFFFFF;
    border: 2px solid var(--brand-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.22s ease;
    z-index: 1000;
}

.floating-scroll-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Floating WhatsApp Button (Bottom-Right - rules.md Madde 38) */
.floating-whatsapp {
    position: fixed;
    bottom: 24px;
    right: 20px;
    background: var(--whatsapp);
    color: #072614;
    padding: 11px 18px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.88rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.40);
    z-index: 1000;
}

.floating-whatsapp:hover {
    background: var(--whatsapp-dark);
    color: #FFFFFF;
}

.floating-whatsapp__pulse {
    position: absolute;
    inset: -4px;
    border-radius: 999px;
    border: 2px solid var(--whatsapp);
    animation: waPulse 2s infinite;
    pointer-events: none;
}

@keyframes waPulse {
    0% { transform: scale(1); opacity: 0.75; }
    100% { transform: scale(1.12); opacity: 0; }
}

/* Sticky Enquiry Bar */
.sticky-enquiry-bar {
    position: fixed;
    bottom: 0;
    inset-inline: 0;
    background: var(--brand-navy-dark);
    color: #FFFFFF;
    padding-block: 10px;
    border-top: 2px solid var(--action);
    z-index: 980;
    display: none;
}

.sticky-enquiry-bar.is-visible {
    display: block;
}

.sticky-enquiry-bar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

/* Responsive Breakpoints */
@media (max-width: 1180px) {
    .desktop-nav {
        display: none;
    }
    .mobile-menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        flex-shrink: 0;
    }
}

@media (max-width: 1024px) {
    .hero-grid,
    .page-hero__grid,
    .simulator-grid,
    .layer-anatomy-grid {
        grid-template-columns: 1fr;
    }
    .card-grid-4,
    .card-grid-5,
    .ecosystem-grid,
    .quick-info-grid--4,
    .quick-info-grid--5 {
        grid-template-columns: repeat(2, 1fr);
    }
    .card-grid-3,
    .sitemap-grid,
    .footer-main,
    .quick-info-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .pathway-tabs {
        grid-template-columns: repeat(2, 1fr);
    }
    .quick-info-grid > .quick-info-item:last-child:nth-child(odd),
    .card-grid-3 > *:last-child:nth-child(odd),
    .card-grid-5 > *:last-child:nth-child(odd) {
        grid-column: 1 / -1;
    }
}

@media (max-width: 900px) {
    .top-bar__left {
        display: none;
    }
    .top-bar__right {
        width: 100%;
        justify-content: space-between;
        gap: 8px;
        flex-wrap: nowrap;
    }
    .top-bar__link span {
        display: none;
    }
    .table-responsive {
        border: none;
        background: transparent;
        overflow: visible;
    }
    .tech-table,
    .tech-table tbody,
    .tech-table tr,
    .tech-table td {
        display: block;
        width: 100%;
    }
    .tech-table thead {
        display: none;
    }
    .tech-table tbody {
        display: grid;
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .tech-table tr {
        background: var(--surface-white);
        border: 1.5px solid var(--border-soft);
        border-radius: var(--radius-md);
        padding: 12px 14px;
        box-shadow: var(--shadow-sm);
    }
    .tech-table tr:nth-child(even) td {
        background-color: transparent;
    }
    .tech-table td {
        display: flex;
        align-items: baseline;
        justify-content: space-between;
        gap: 12px;
        padding: 8px 0;
        border-bottom: 1px dashed var(--border-soft);
        white-space: normal !important;
        text-align: end;
    }
    .tech-table td .code-pill {
        white-space: normal;
        text-align: end;
    }
    .tech-table td:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    .tech-table td:first-child {
        padding-top: 0;
    }
    .tech-table td::before {
        content: attr(data-label);
        font-weight: 700;
        font-size: 0.76rem;
        color: var(--text-muted);
        text-transform: uppercase;
        text-align: start;
        flex-shrink: 0;
        max-width: 44%;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 92px;
    }
    .container {
        padding-inline: 14px;
    }
    .top-bar {
        padding-block: 5px;
        font-size: 0.74rem;
    }
    .lang-switcher__item {
        padding: 2px 5px;
        font-size: 0.70rem;
    }
    .main-nav {
        min-height: 56px;
        gap: 8px;
    }
    .brand-logo {
        gap: 7px;
        min-width: 0;
        flex: 1 1 auto;
        overflow: hidden;
    }
    .brand-logo__mark {
        width: 34px;
        height: 34px;
    }
    .brand-logo__text {
        min-width: 0;
        overflow: hidden;
    }
    .brand-logo__title {
        font-size: 1.02rem;
    }
    .brand-logo__sub {
        font-size: 0.62rem;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .main-nav__actions .btn--teal {
        display: none;
    }
    .main-nav__actions .btn--action {
        padding: 7px 10px;
        font-size: 0.76rem;
        gap: 4px;
    }
    .badge {
        white-space: normal;
        max-width: 100%;
        font-size: 0.70rem;
        padding: 4px 10px;
    }
    .hero-section,
    .page-hero {
        padding-block: 26px;
    }
    .section {
        padding-block: 36px;
    }
    .page-body {
        padding-block: 24px;
    }
    .hero-cta-row,
    .page-hero__actions {
        flex-direction: column;
        align-items: stretch;
    }
    .hero-cta-row .btn,
    .page-hero__actions .btn {
        width: 100%;
        justify-content: center;
        white-space: normal;
        text-align: center;
    }
    .hero-metrics,
    .sim-metrics-grid,
    .card-grid-3,
    .card-grid-4,
    .card-grid-5,
    .quick-info-grid,
    .quick-info-grid--2,
    .quick-info-grid--3,
    .quick-info-grid--4,
    .quick-info-grid--5,
    .form-grid-3,
    .pathway-tabs,
    .sitemap-grid,
    .footer-main,
    .footer-locations,
    .ecosystem-grid {
        grid-template-columns: 1fr;
    }
    .quick-info-card,
    .simulator-box,
    .lead-form-card,
    .cad-card,
    .cta-banner,
    .layer-anatomy-section,
    .layer-anatomy-visual {
        padding: 16px 14px;
    }
    .layer-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    .layer-row__badge {
        flex-direction: row;
        justify-content: flex-start;
        gap: 6px;
        width: fit-content;
        padding: 3px 8px;
    }
    .layer-row__num {
        font-size: 0.84rem;
        margin-top: 0;
    }
    .layer-spec-mini-grid {
        grid-template-columns: 1fr;
    }
    .quick-info-card__header {
        flex-direction: column;
        align-items: flex-start;
    }
    .quick-info-card__actions,
    .quick-info-card__actions .btn {
        width: 100%;
        justify-content: center;
    }
    .cta-banner__actions {
        width: 100%;
        min-width: 0;
    }
    .cta-banner__actions .btn {
        width: 100%;
        white-space: normal;
        text-align: center;
    }
    .pathway-tab {
        white-space: normal;
        text-align: center;
    }
    .form-group label {
        white-space: normal;
        overflow: visible;
    }
    .form-footer .btn {
        width: 100%;
        justify-content: center;
        white-space: normal;
    }
    .search-form-bar {
        flex-direction: column;
    }
    .search-form-bar .btn {
        width: 100%;
    }
    .faq-question {
        padding: 12px 14px;
        align-items: flex-start;
    }
    .faq-answer {
        padding: 0 14px 14px 14px;
        font-size: 0.90rem;
    }
    .floating-whatsapp__label {
        display: none;
    }
    .floating-whatsapp {
        padding: 13px;
        border-radius: 50%;
        bottom: 16px;
        right: 14px;
    }
    .floating-scroll-top {
        bottom: 16px;
        left: 14px;
    }
}

@media (max-width: 380px) {
    .main-nav__actions .btn--action svg {
        display: none;
    }
    .top-bar__phone strong {
        font-size: 0.70rem;
    }
}

@media print {
    .site-header,
    .site-footer,
    .floating-scroll-top,
    .floating-whatsapp,
    .sticky-enquiry-bar,
    .lead-form-section,
    .cta-banner,
    .page-hero__actions {
        display: none !important;
    }
    body {
        color: #000000;
        background: #FFFFFF;
    }
}