/* ==========================================================================
   SOMOS (somos.kg) — VECTRFLOW EDITORIAL HARDWARE AESTHETICS
   Vendors: xFusion • Huawei • Lenovo
   Colors: Phthalo Green (#123524) + Tech Mint Accents + Clean Sage Ambient
   ========================================================================== */

:root {
  /* Vectrflow Tone: Ceramic Sage & Deep Phthalo Base */
  --color-bg: #E3EDE7;
  --color-bg-subtle: #D6E4DC;
  --color-surface: #FFFFFF;
  --color-card: #FFFFFF;
  --color-text: #0B1E14;
  --color-text-muted: #4B6355;
  --color-text-dim: #7C9687;
  --color-border: rgba(18, 53, 36, 0.14);
  --color-border-subtle: rgba(18, 53, 36, 0.08);

  /* Phthalo Brand Core */
  --color-phthalo: #123524;
  --color-phthalo-dark: #0A1E14;
  --color-phthalo-rich: #18442F;
  --color-accent-mint: #00B06F;
  --color-accent-glow: rgba(0, 176, 111, 0.25);

  /* Vendor Accents: xFusion, Huawei, Lenovo */
  --vendor-xfusion: #0088CC;
  --vendor-huawei: #CF0A2C;
  --vendor-lenovo: #E2231A;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Sizing Tokens */
  --btn-height: 48px;
  --radius-full: 9999px;
  --radius-card: 24px;
  --radius-sm: 10px;

  --ease-vectr: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Cyber Obsidian Dark Theme */
body.theme-dark {
  --color-bg: #07130C;
  --color-bg-subtle: #0B1C13;
  --color-surface: #0E2419;
  --color-card: #0E2419;
  --color-text: #ECF7F0;
  --color-text-muted: #A5C4B3;
  --color-text-dim: #6E9681;
  --color-border: rgba(0, 176, 111, 0.25);
  --color-border-subtle: rgba(0, 176, 111, 0.14);
  --color-phthalo: #ECF7F0;
  --color-phthalo-dark: #008855;
}

body.theme-dark .header {
  background: rgba(7, 19, 12, 0.88);
  border-bottom-color: var(--color-border);
}

/* Fix semi-transparent white section overlays in Dark Mode */
body.theme-dark #vendors,
body.theme-dark .logistics-section,
body.theme-dark .tco-section,
body.theme-dark .sizer-section {
  background: rgba(11, 28, 19, 0.65) !important;
  border-color: var(--color-border) !important;
}

/* Fix cards & interactive containers in Dark Mode */
body.theme-dark .feature-card,
body.theme-dark .hw-card,
body.theme-dark .config-box,
body.theme-dark .sector-card,
body.theme-dark .logistics-step,
body.theme-dark .tco-box,
body.theme-dark .matrix-table-wrap,
body.theme-dark .modal-box {
  background: rgba(14, 36, 25, 0.9) !important;
  border-color: var(--color-border) !important;
  color: var(--color-text);
}

body.theme-dark .sector-card:hover,
body.theme-dark .logistics-step:hover,
body.theme-dark .feature-card:hover,
body.theme-dark .hw-card:hover {
  background: rgba(18, 46, 32, 0.96) !important;
  border-color: var(--color-accent-mint) !important;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35) !important;
}

body.theme-dark .cfg-summary,
body.theme-dark .tco-metric-item,
body.theme-dark .spec-modal-cell,
body.theme-dark .f-field input,
body.theme-dark .f-field textarea,
body.theme-dark .search-input-box input,
body.theme-dark .dropzone-box {
  background: rgba(7, 19, 12, 0.82) !important;
  color: var(--color-text) !important;
  border-color: var(--color-border) !important;
}

body.theme-dark .cfg-btn,
body.theme-dark .sla-card {
  background: rgba(7, 19, 12, 0.78) !important;
  border-color: var(--color-border) !important;
}

body.theme-dark .cfg-btn:hover,
body.theme-dark .sla-card:hover {
  background: rgba(18, 46, 32, 0.92) !important;
  border-color: var(--color-accent-mint) !important;
}

body.theme-dark .cfg-btn.selected,
body.theme-dark .sla-card.selected {
  background: rgba(0, 176, 111, 0.14) !important;
  border-color: var(--color-accent-mint) !important;
  box-shadow: 0 0 0 1px var(--color-accent-mint) !important;
}

body.theme-dark .matrix-table th {
  background: rgba(0, 176, 111, 0.1) !important;
  color: var(--color-accent-mint) !important;
}

body.theme-dark .standards-image-box {
  background: #0A2016 !important;
  border: 1px solid var(--color-border);
  color: #FFFFFF;
}

body.theme-dark .footer {
  background-color: #050E09 !important;
  border-top: 1px solid var(--color-border);
  color: #FFFFFF;
}

body.theme-dark .tab-btn.active,
body.theme-dark .workload-chip.active,
body.theme-dark .lang-opt.active,
body.theme-dark .curr-opt.active,
body.theme-dark .toast-notice {
  background: #00B06F !important;
  color: #07130C !important;
  border-color: #00B06F !important;
}

body.theme-dark .section-tag,
body.theme-dark .hero__badge {
  background: rgba(0, 176, 111, 0.12) !important;
  border-color: rgba(0, 176, 111, 0.3) !important;
  color: var(--color-accent-mint) !important;
}

body.theme-dark .pill-btn--dark {
  background: #00B06F !important;
  color: #07130C !important;
  border-color: #00B06F !important;
}

body.theme-dark .pill-btn--dark:hover {
  background: #00D687 !important;
}

body.theme-dark .pill-btn--light {
  background: rgba(0, 176, 111, 0.12) !important;
  color: #00B06F !important;
  border-color: var(--color-border) !important;
}

body.theme-dark .pill-btn--glass {
  background-color: rgba(0, 176, 111, 0.1);
  border-color: rgba(0, 176, 111, 0.28);
  color: var(--color-text);
}

body.theme-dark .pill-btn--glass:hover {
  background-color: rgba(0, 176, 111, 0.18);
  border-color: var(--color-accent-mint);
}

body.theme-dark .tab-btn,
body.theme-dark .workload-chip {
  background: rgba(14, 36, 25, 0.85);
  border-color: var(--color-border);
  color: var(--color-text-muted);
}

body.theme-dark .tab-btn:hover,
body.theme-dark .workload-chip:hover {
  background: rgba(0, 176, 111, 0.15);
  color: var(--color-text);
}

body.theme-dark .hw-badge-vendor {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
body.theme-dark .hw-badge-vendor.xfusion { color: #38BDF8; }
body.theme-dark .hw-badge-vendor.huawei { color: #FF5C77; }
body.theme-dark .hw-badge-vendor.lenovo { color: #FF6B63; }

body.theme-dark .faq-item__icon {
  background: rgba(0, 176, 111, 0.15);
  color: var(--color-accent-mint);
}

body.theme-dark .lang-pill,
body.theme-dark .theme-toggle-btn,
body.theme-dark .mobile-menu-btn {
  background: rgba(14, 36, 25, 0.9);
  border-color: var(--color-border);
}

/* Section Tag Badge (Light & Dark) */
.section-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

/* Reset & Foundation */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   ANIMATED SCROLL-REACTIVE DATACENTER CANVAS
   ========================================================================== */
#datacenterCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.65;
}

/* Ambient Subtle Gradients */
.atmo-bg {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.atmo-glow-1 {
  position: absolute;
  top: -150px;
  left: 15%;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(18, 53, 36, 0.12) 0%, rgba(0, 176, 111, 0.05) 50%, transparent 70%);
  filter: blur(80px);
}

.atmo-glow-2 {
  position: absolute;
  top: 40%;
  right: 5%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 136, 204, 0.08) 0%, rgba(18, 53, 36, 0.08) 50%, transparent 70%);
  filter: blur(90px);
}

/* All main containers sit over the canvas */
main, header, footer, .modal-overlay {
  position: relative;
  z-index: 2;
}

/* ==========================================================================
   VECTRFLOW SIGNATURE BUTTONS
   ========================================================================== */
.pill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: var(--btn-height);
  padding: 0 28px;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.3s var(--ease-vectr);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.pill-btn--glass {
  background-color: rgba(18, 53, 36, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.pill-btn--glass:hover {
  background-color: rgba(18, 53, 36, 0.16);
  transform: translateY(-1px);
}

.pill-btn--dark {
  background-color: var(--color-phthalo);
  color: #FFFFFF;
  border: 1px solid var(--color-phthalo-dark);
}

.pill-btn--dark:hover {
  background-color: var(--color-phthalo-rich);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(18, 53, 36, 0.25);
}

.pill-btn--light {
  background-color: #FFFFFF;
  color: var(--color-phthalo);
  border: 1px solid var(--color-border);
}

.pill-btn--light:hover {
  background-color: #F8FAF9;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}

/* ==========================================================================
   CLEAN MODERN HEADER (Logo Left • Nav Center • Actions Right)
   ========================================================================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 40px;
  background: rgba(227, 237, 231, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: all 0.3s ease;
}

body.theme-dark .header {
  background: rgba(7, 19, 12, 0.92);
  border-bottom-color: var(--color-border);
}

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

.header__logo_link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: -0.04em;
  color: var(--color-phthalo);
}

.header__logo_img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.header__nav-center {
  display: flex;
  align-items: center;
  gap: 28px;
}

.header__nav-center a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
  white-space: nowrap;
}

.header__nav-center a:hover {
  color: var(--color-phthalo);
}

body.theme-dark .header__nav-center a:hover {
  color: var(--color-accent-mint);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.header__cta-btn {
  padding: 10px 20px;
  font-size: 0.88rem;
  white-space: nowrap;
}

@media (max-width: 1180px) {
  .header {
    padding: 14px 24px;
    gap: 16px;
  }
  .header__nav-center {
    gap: 16px;
  }
  .header__nav-center a {
    font-size: 0.88rem;
  }
}

@media (max-width: 960px) {
  .header__nav-center {
    display: none;
  }
}

@media (max-width: 768px) {
  .header {
    padding: 12px 16px;
  }
  .header__cta-btn {
    display: none;
  }
  .header__logo_link {
    font-size: 1.25rem;
    gap: 8px;
  }
  .header__logo_img {
    width: 28px;
    height: 28px;
  }
}

/* Currency Pill */
.currency-pill {
  display: flex;
  background: rgba(18, 53, 36, 0.08);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 2px;
}

.curr-opt {
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-full);
}

.curr-opt.active {
  background: var(--color-phthalo);
  color: #FFFFFF;
}

/* ==========================================================================
   VECTRFLOW HERO SECTION
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 160px 24px 80px;
  position: relative;
}

.hero__content {
  max-width: 1080px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: rgba(18, 53, 36, 0.08);
  border: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-phthalo);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero__badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent-mint);
}

.hero__title {
  font-size: clamp(3rem, 7vw, 5.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.02;
  color: var(--color-phthalo);
}

.hero__title span {
  display: block;
}

.hero__subtitle {
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  color: var(--color-text-muted);
  max-width: 780px;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 12px;
}

@media (max-width: 540px) {
  .hero__actions {
    flex-direction: column;
    width: 100%;
  }
  .hero__actions .pill-btn {
    width: 100%;
    text-align: center;
  }
}

.hero__scroll-btn {
  margin-top: 48px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ==========================================================================
   VECTRFLOW FLOW STEPS ACCORDION (01 -> 04)
   ========================================================================== */
.flow-section {
  padding: 100px 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.flow-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

@media (max-width: 768px) {
  .flow-container {
    padding: 0 24px;
  }
}

.flow-section-header {
  margin-bottom: 60px;
}

.flow-section-title {
  font-size: clamp(2rem, 3.8vw, 3rem);
  letter-spacing: -0.03em;
  color: var(--color-phthalo);
  margin-bottom: 16px;
}

.flow-steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

@media (max-width: 1024px) {
  .flow-steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .flow-steps-grid {
    grid-template-columns: 1fr;
  }
}

.flow-step-item {
  display: flex;
  flex-direction: column;
  position: relative;
  padding-top: 24px;
  border-top: 2px solid var(--color-border);
  transition: border-color 0.3s ease;
}

.flow-step-item:hover {
  border-top-color: var(--color-phthalo);
}

.flow-step-num {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-dim);
  margin-bottom: 16px;
}

.flow-step-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-phthalo);
  margin-bottom: 12px;
}

.flow-step-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   VECTRFLOW FEATURES GRID
   ========================================================================== */
.features-section {
  padding: 120px 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.features-title {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--color-phthalo);
  margin-bottom: 60px;
  max-width: 920px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s var(--ease-vectr);
  box-shadow: 0 4px 20px rgba(18, 53, 36, 0.04);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(18, 53, 36, 0.08);
  border-color: var(--color-phthalo);
}

.feature-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-phthalo);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-phthalo);
  margin-bottom: 12px;
}

.feature-card__desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   VECTRFLOW STANDARDS HERO (xFusion • Huawei • Lenovo)
   ========================================================================== */
.standards-section {
  padding: 100px 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-subtle);
}

.standards-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

@media (max-width: 960px) {
  .standards-container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 0 24px;
  }
}

.standards-image-box {
  background: var(--color-phthalo);
  border-radius: var(--radius-card);
  padding: 40px;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(18, 53, 36, 0.2);
}

.standards-image-box::before {
  content: '';
  position: absolute;
  top: -50%; right: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(0, 176, 111, 0.15) 0%, transparent 60%);
}

.standards-tech-badge {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.15em;
  color: var(--color-accent-mint);
  margin-bottom: 24px;
}

.standards-blade-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.standards-blade-row {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.standards-blade-row strong {
  font-size: 1rem;
}

.standards-blade-row span {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--color-accent-mint);
}

.standards-content h2 {
  font-size: clamp(2.4rem, 4.4vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  color: var(--color-phthalo);
  margin-bottom: 24px;
}

.standards-content p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 32px;
}

/* ==========================================================================
   HARDWARE CATALOG
   ========================================================================== */
.catalog-section {
  padding: 100px 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.catalog-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 40px;
}

.catalog-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab-btn {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  background: rgba(18, 53, 36, 0.06);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  background: rgba(18, 53, 36, 0.12);
  color: var(--color-text);
}

.tab-btn.active {
  background: var(--color-phthalo);
  color: #FFFFFF;
  border-color: var(--color-phthalo);
}

.search-input-box {
  position: relative;
  min-width: 280px;
}

.search-input-box input {
  width: 100%;
  padding: 12px 18px 12px 42px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-text);
}

.search-input-box input:focus {
  outline: none;
  border-color: var(--color-phthalo);
}

.search-input-box svg {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-dim);
}

/* Hardware Cards Grid */
.hw-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

@media (max-width: 1024px) {
  .hw-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 680px) {
  .hw-grid {
    grid-template-columns: 1fr;
  }
}

.hw-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s var(--ease-vectr);
  box-shadow: 0 4px 20px rgba(18, 53, 36, 0.04);
}

.hw-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(18, 53, 36, 0.09);
  border-color: var(--color-phthalo);
}

.hw-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.hw-badge-vendor {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(18, 53, 36, 0.08);
}

.hw-badge-vendor.xfusion { color: var(--vendor-xfusion); }
.hw-badge-vendor.huawei { color: var(--vendor-huawei); }
.hw-badge-vendor.lenovo { color: var(--vendor-lenovo); }

.hw-stock {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--color-text-dim);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hw-stock-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-mint);
}

.hw-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-phthalo);
  margin-bottom: 10px;
}

.hw-card-desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.hw-specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.hw-specs li {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.hw-specs li svg {
  color: var(--color-accent-mint);
  flex-shrink: 0;
}

.hw-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hw-price {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-phthalo);
}

.hw-price small {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--color-text-dim);
}

/* ==========================================================================
   CONFIGURATOR PANEL
   ========================================================================== */
.config-section {
  padding: 100px 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-subtle);
}

.config-box {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 40px;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 40px;
  box-shadow: 0 10px 40px rgba(18, 53, 36, 0.06);
}

@media (max-width: 960px) {
  .config-box {
    grid-template-columns: 1fr;
    padding: 24px;
  }
}

.cfg-step-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-phthalo);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

.cfg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}

.cfg-btn {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 14px;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.cfg-btn.selected {
  border-color: var(--color-phthalo);
  background: #FFFFFF;
  box-shadow: 0 0 0 2px var(--color-phthalo);
}

.cfg-btn .vendor {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-text-dim);
}

.cfg-btn .name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-phthalo);
  margin: 4px 0;
  display: block;
}

.cfg-btn .hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Config Summary */
.cfg-summary {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.cfg-sum-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-phthalo);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 20px;
}

.cfg-rows {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
  flex-grow: 1;
}

.cfg-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}

.cfg-row .k { color: var(--color-text-muted); }
.cfg-row .v { font-family: var(--font-mono); font-weight: 700; color: var(--color-phthalo); }

.cfg-total {
  padding-top: 20px;
  border-top: 1px dashed var(--color-border);
  margin-bottom: 24px;
}

.cfg-price {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-phthalo);
}

/* ==========================================================================
   VECTRFLOW FAQ ACCORDION
   ========================================================================= */
.faq-section {
  padding: 100px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.faq__container {
  display: grid;
  grid-template-columns: 1fr 1px 1.4fr;
  gap: 48px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

@media (max-width: 960px) {
  .faq__container {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 0 24px;
  }
}

.faq__title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-phthalo);
  line-height: 1.15;
}

.faq_split_bar {
  background-color: var(--color-border);
  width: 1px;
}

@media (max-width: 960px) {
  .faq_split_bar {
    display: none;
  }
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 32px 0;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
}

.faq-item__question {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-phthalo);
}

.faq-item__icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(18, 53, 36, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-phthalo);
  transition: transform 0.3s ease;
}

.faq-item.open .faq-item__icon {
  transform: rotate(45deg);
}

.faq-item__content {
  display: none;
  padding-bottom: 32px;
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.faq-item.open .faq-item__content {
  display: block;
}

/* ==========================================================================
   VECTRFLOW BIG CTA BOTTOM HERO
   ========================================================================== */
.cta-section {
  padding: 140px 24px;
  text-align: center;
  background-color: var(--color-bg);
}

.cta-section__title {
  font-size: clamp(2.5rem, 5.5vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--color-phthalo);
  margin-bottom: 40px;
}

.cta-section__title span {
  display: block;
}

/* ==========================================================================
   VECTRFLOW FOOTER
   ========================================================================== */
.footer {
  background-color: var(--color-phthalo);
  color: #FFFFFF;
  padding: 80px 48px 40px;
}

@media (max-width: 768px) {
  .footer {
    padding: 60px 24px 30px;
  }
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1280px;
  margin: 0 auto 80px;
}

@media (max-width: 860px) {
  .footer-nav {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

.footer-nav-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 32px 36px;
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  font-size: 1.35rem;
  font-weight: 700;
  transition: all 0.3s var(--ease-vectr);
}

.footer-nav-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.25);
}

.footer-nav-btn svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  transition: transform 0.3s ease;
}

.footer-nav-btn:hover svg {
  transform: translateX(6px);
}

.footer__bottom {
  max-width: 1280px;
  margin: 0 auto;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 680px) {
  .footer__bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(11, 30, 20, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  max-width: 540px;
  width: 100%;
  padding: 40px;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.2);
}

.close-btn {
  position: absolute;
  top: 24px; right: 24px;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-dim);
}

.f-field {
  margin-bottom: 20px;
}

.f-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-phthalo);
  margin-bottom: 8px;
}

.f-field input, .f-field textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
}

.f-field input:focus, .f-field textarea:focus {
  outline: none;
  border-color: var(--color-phthalo);
}

/* ==========================================================================
   IMMERSIVE DATACENTER GLASS TRANSPARENCY
   Ensures the animated 3D datacenter canvas accompanies the user seamlessly
   throughout the entire scroll journey across all sections.
   ========================================================================== */
.standards-section,
.config-section,
.catalog-section,
.faq-section,
.features-section,
.flow-section,
.cta-section {
  background-color: transparent !important;
}

.feature-card,
.hw-card,
.config-box,
.cfg-summary,
.standards-image-box {
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.feature-card {
  background: rgba(255, 255, 255, 0.82);
}

.hw-card {
  background: rgba(255, 255, 255, 0.88);
}

.config-box {
  background: rgba(255, 255, 255, 0.90);
}

.cfg-summary {
  background: rgba(227, 237, 231, 0.75);
}

/* ==========================================================================
   FLOATING B2B MESSENGER QUICK-BAR (Telegram & WhatsApp)
   ========================================================================== */
.floating-b2b-bar {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.floating-b2b-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 700;
  color: #FFFFFF;
  text-decoration: none;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.18);
  transition: all 0.3s var(--ease-vectr);
  backdrop-filter: blur(8px);
}

.floating-b2b-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.25);
}

.floating-b2b-btn--wa {
  background: linear-gradient(135deg, #25D366, #128C7E);
}

.floating-b2b-btn--tg {
  background: linear-gradient(135deg, #0088CC, #006699);
}

.floating-b2b-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

@media (max-width: 680px) {
  .floating-b2b-bar {
    bottom: 16px;
    right: 16px;
  }
  .floating-b2b-btn span {
    display: none;
  }
  .floating-b2b-btn {
    padding: 14px;
    border-radius: 50%;
  }
}

/* ==========================================================================
   ENTERPRISE SECTOR CAROUSEL / LOGOS
   ========================================================================== */
.sectors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 36px;
}

@media (max-width: 960px) {
  .sectors-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .sectors-grid {
    grid-template-columns: 1fr;
  }
}

.sector-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 24px 20px;
  transition: all 0.3s ease;
  backdrop-filter: blur(6px);
}

.sector-card:hover {
  background: #FFFFFF;
  border-color: var(--color-phthalo);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(18, 53, 36, 0.06);
}

.sector-card__num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent-mint);
  margin-bottom: 8px;
}

.sector-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-phthalo);
  margin-bottom: 6px;
}

.sector-card__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   WORKLOAD PRESET CHIPS IN CONFIGURATOR
   ========================================================================== */
.workload-chips {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.workload-chip {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: rgba(18, 53, 36, 0.05);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.workload-chip:hover {
  background: rgba(18, 53, 36, 0.1);
  color: var(--color-text);
}

.workload-chip.active {
  background: var(--color-phthalo);
  border-color: var(--color-phthalo);
  color: #FFFFFF;
}

/* ==========================================================================
   ENERGY & TCO CALCULATOR
   ========================================================================== */
.tco-section {
  padding: 80px 0;
  border-top: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(10px);
}

.tco-box {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  box-shadow: 0 15px 40px rgba(18, 53, 36, 0.06);
}

@media (max-width: 860px) {
  .tco-box {
    grid-template-columns: 1fr;
    padding: 24px;
  }
}

.tco-slider-wrap {
  margin: 24px 0;
}

.tco-slider-wrap label {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  color: var(--color-phthalo);
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.tco-slider {
  width: 100%;
  accent-color: var(--color-phthalo);
  cursor: pointer;
  height: 6px;
  border-radius: 4px;
}

.tco-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.tco-metric-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
}

.tco-metric-val {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--color-accent-mint);
  margin-bottom: 4px;
}

.tco-metric-lbl {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   VENDOR COMPARISON MATRIX TABLE
   ========================================================================== */
.matrix-section {
  padding: 90px 0;
  border-top: 1px solid var(--color-border);
  background: transparent;
}

.matrix-table-wrap {
  overflow-x: auto;
  margin-top: 36px;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 35px rgba(18, 53, 36, 0.05);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.matrix-table th, .matrix-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--color-border-subtle);
  font-size: 0.92rem;
}

.matrix-table th {
  background: rgba(18, 53, 36, 0.04);
  font-weight: 700;
  color: var(--color-phthalo);
  font-family: var(--font-sans);
}

.matrix-table td:first-child {
  font-weight: 700;
  color: var(--color-phthalo);
}

.matrix-table tr:hover td {
  background: rgba(18, 53, 36, 0.02);
}

/* Quick specs modal */
.spec-modal-body {
  max-height: 75vh;
  overflow-y: auto;
  padding-right: 8px;
}

.spec-modal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 20px 0;
}

@media (max-width: 580px) {
  .spec-modal-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

.spec-modal-cell {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}

.spec-modal-cell .k {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  font-family: var(--font-mono);
  display: block;
}

.spec-modal-cell .v {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-phthalo);
  margin-top: 4px;
  display: block;
}

/* ==========================================================================
   THEME TOGGLE & LANGUAGE SWITCHER
   ========================================================================== */
.lang-pill, .theme-toggle-btn {
  display: flex;
  align-items: center;
  background: rgba(18, 53, 36, 0.08);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 3px;
}

.lang-opt {
  background: transparent;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-opt.active {
  background: var(--color-phthalo);
  color: #FFFFFF;
}

.theme-toggle-btn {
  width: 36px;
  height: 36px;
  justify-content: center;
  cursor: pointer;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
  background: rgba(18, 53, 36, 0.15);
}

/* ==========================================================================
   DRAG AND DROP FILE UPLOAD AREA (ТЗ / BoM)
   ========================================================================== */
.dropzone-box {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 20px;
  text-align: center;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(8px);
  cursor: pointer;
  transition: all 0.25s ease;
  margin: 24px 0;
}

.dropzone-box:hover, .dropzone-box.dragover {
  border-color: var(--color-accent-mint);
  background: rgba(0, 176, 111, 0.06);
}

.dropzone-icon {
  width: 44px;
  height: 44px;
  color: var(--color-phthalo);
  margin-bottom: 12px;
}

.dropzone-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-phthalo);
  margin-bottom: 4px;
}

.dropzone-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.file-list-preview {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent-mint);
  font-weight: 700;
}

/* ==========================================================================
   INTERACTIVE LOGISTICS CORRIDOR (Manas Airport / Direct Freight)
   ========================================================================== */
.logistics-section {
  padding: 80px 0;
  border-top: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10px);
}

.logistics-corridor {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
  margin-top: 40px;
}

@media (max-width: 960px) {
  .logistics-corridor {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.logistics-step {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 24px 20px;
  position: relative;
  transition: all 0.3s ease;
}

.logistics-step:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent-mint);
  box-shadow: 0 10px 25px rgba(18, 53, 36, 0.06);
}

.logistics-step__badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent-mint);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.logistics-step__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-phthalo);
  margin-bottom: 6px;
}

.logistics-step__desc {
  font-size: 0.86rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* SLA Picker Chips */
.sla-picker {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}

@media (max-width: 600px) {
  .sla-picker {
    grid-template-columns: 1fr;
  }
}

.sla-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 12px;
  background: var(--color-bg);
  cursor: pointer;
  transition: all 0.2s ease;
}

.sla-card:hover {
  border-color: var(--color-phthalo);
}

.sla-card.selected {
  border-color: var(--color-accent-mint);
  background: rgba(0, 176, 111, 0.08);
  box-shadow: 0 0 0 1px var(--color-accent-mint);
}

.sla-card .sla-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-phthalo);
  display: block;
}

.sla-card .sla-time {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent-mint);
  font-weight: 700;
}

/* ==========================================================================
   WORKLOAD SIZER WIZARD
   ========================================================================== */
.sizer-section {
  padding: 80px 0;
  border-top: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(10px);
}

.sizer-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 40px;
  box-shadow: 0 15px 40px rgba(18, 53, 36, 0.06);
}

body.theme-dark .sizer-card {
  background: rgba(14, 36, 25, 0.9) !important;
  border-color: var(--color-border) !important;
}

.sizer-steps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.1fr;
  gap: 32px;
  margin-top: 32px;
}

@media (max-width: 960px) {
  .sizer-steps-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.sizer-col-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent-mint);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: block;
}

.sizer-options-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sizer-btn {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
}

body.theme-dark .sizer-btn {
  background: rgba(7, 19, 12, 0.7);
  color: var(--color-text);
}

.sizer-btn:hover {
  border-color: var(--color-phthalo);
  transform: translateX(2px);
}

.sizer-btn.active {
  border-color: var(--color-accent-mint);
  background: rgba(0, 176, 111, 0.08);
  box-shadow: 0 0 0 1px var(--color-accent-mint);
}

.sizer-btn-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-phthalo);
  display: block;
}

body.theme-dark .sizer-btn-title {
  color: #E5F2EA;
}

.sizer-btn-sub {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Sizer Recommendation Panel */
.sizer-result-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

body.theme-dark .sizer-result-box {
  background: rgba(7, 19, 12, 0.85);
  border-color: var(--color-border);
}

.sizer-rec-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent-mint);
  background: rgba(0, 176, 111, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 12px;
}

.sizer-rec-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-phthalo);
  margin-bottom: 8px;
}

body.theme-dark .sizer-rec-title {
  color: #E5F2EA;
}

.sizer-rec-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.sizer-rec-specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.sizer-rec-specs li {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.sizer-rec-specs li svg {
  color: var(--color-accent-mint);
  flex-shrink: 0;
}

/* Copy notification toast */
.toast-notice {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-phthalo);
  color: #FFFFFF;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  z-index: 3000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s var(--ease-vectr);
}

.toast-notice.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ==========================================================================
   MOBILE NAVIGATION DRAWER & MULTI-DEVICE UX HARDENING
   ========================================================================== */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(18, 53, 36, 0.08);
  border: 1px solid var(--color-border);
  cursor: pointer;
  padding: 0;
  transition: all 0.25s ease;
  flex-shrink: 0;
}

.mobile-menu-btn span {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--color-phthalo);
  border-radius: 2px;
  transition: all 0.25s ease;
}

body.theme-dark .mobile-menu-btn span {
  background: var(--color-text);
}

.mobile-menu-btn.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.mobile-menu-btn.open span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-nav-drawer {
  position: fixed;
  top: 63px;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(227, 237, 231, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 20px 40px rgba(11, 30, 20, 0.16);
  transform: translateY(-16px);
  opacity: 0;
  pointer-events: none;
  transition: all 0.28s var(--ease-vectr);
}

body.theme-dark .mobile-nav-drawer {
  background: rgba(11, 28, 19, 0.97);
  border-bottom-color: var(--color-border);
}

.mobile-nav-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
}

.mobile-nav-link {
  padding: 13px 4px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-nav-link::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--color-accent-mint);
  font-size: 0.95rem;
}

.mobile-nav-footer {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 4px;
}

.mobile-nav-phone {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 16px;
  border-radius: var(--radius-full);
  background: rgba(0, 176, 111, 0.1);
  border: 1px solid rgba(0, 176, 111, 0.28);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-phthalo);
  text-align: center;
}

body.theme-dark .mobile-nav-phone {
  color: var(--color-accent-mint);
}

/* 2-Column Form Row inside Modal */
.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* Configurator & Sizer Long Button & Row Alignment Fixes */
.cfg-row {
  gap: 12px;
  align-items: baseline;
}

.cfg-row .k {
  flex-shrink: 0;
}

.cfg-row .v {
  text-align: right;
  word-break: break-word;
}

.cfg-summary .pill-btn,
.sizer-result-box .pill-btn {
  white-space: normal;
  height: auto;
  min-height: 44px;
  padding: 10px 16px;
  line-height: 1.3;
  text-align: center;
}

.hw-card-footer {
  gap: 12px;
  flex-wrap: wrap;
}

.hw-card-actions .pill-btn {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Matrix Table Readability on Mobile/Tablet */
.matrix-table-wrap {
  -webkit-overflow-scrolling: touch;
}

.matrix-table {
  min-width: 680px;
}

/* Modal Viewport Safety on Short & Mobile Screens */
.modal-box {
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.faq-item__header {
  gap: 16px;
}

.faq-item__icon {
  flex-shrink: 0;
}

/* ==========================================================================
   BREAKPOINT: TABLETS & COMPACT LAPTOPS (<= 960px)
   ========================================================================== */
@media (max-width: 960px) {
  .mobile-menu-btn {
    display: flex;
  }

  .logistics-corridor {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* ==========================================================================
   BREAKPOINT: MOBILE & SMALL TABLETS (<= 768px)
   ========================================================================== */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 118px 16px 60px;
  }

  .hero__content {
    gap: 20px;
  }

  .hero__badge {
    font-size: 0.72rem;
    padding: 7px 14px;
    letter-spacing: 0.04em;
    max-width: 100%;
    text-align: center;
    line-height: 1.35;
  }

  .hero__title {
    font-size: clamp(2.15rem, 8.5vw, 3.2rem);
    line-height: 1.06;
  }

  .hero__subtitle {
    font-size: 1rem;
    line-height: 1.55;
  }

  .hero__scroll-btn {
    margin-top: 28px;
    font-size: 0.72rem;
  }

  .flow-section,
  .features-section,
  .standards-section,
  .catalog-section,
  .matrix-section,
  .tco-section,
  .sizer-section,
  .config-section,
  .faq-section {
    padding: 60px 0 !important;
  }

  .cta-section {
    padding: 72px 16px;
  }

  .flow-section-header {
    margin-bottom: 36px;
  }

  .vendor-strip-inner {
    justify-content: center !important;
    text-align: center;
    gap: 16px !important;
  }

  .vendor-strip-logos {
    justify-content: center;
    gap: 20px !important;
  }

  /* Horizontal Touch-Scrollable Category Tabs on Mobile */
  .catalog-toolbar {
    gap: 14px;
    margin-bottom: 24px;
  }

  .catalog-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    width: 100%;
    padding-bottom: 4px;
  }

  .catalog-tabs::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    flex-shrink: 0;
    white-space: nowrap;
    padding: 9px 16px;
    font-size: 0.84rem;
  }

  .search-input-box {
    width: 100%;
    min-width: 0;
  }

  /* Prevent iOS Safari auto-zoom on input focus */
  .search-input-box input,
  .f-field input,
  .f-field textarea {
    font-size: 16px;
  }

  .standards-content h2 {
    font-size: clamp(1.75rem, 6vw, 2.4rem);
  }

  .standards-content p {
    font-size: 1rem;
  }

  .footer-nav {
    margin-bottom: 44px;
  }

  .footer-nav-btn {
    padding: 20px 22px;
    font-size: 1.08rem;
    border-radius: 16px;
  }

  .faq-item__header {
    padding: 22px 0;
  }

  .faq-item__question {
    font-size: 1.05rem;
  }
}

/* ==========================================================================
   BREAKPOINT: SMARTPHONES (<= 600px)
   ========================================================================== */
@media (max-width: 600px) {
  .flow-container,
  .standards-container,
  .faq__container {
    padding: 0 16px;
  }

  .logistics-corridor {
    grid-template-columns: 1fr;
  }

  .standards-image-box {
    padding: 22px 16px;
    border-radius: 18px;
  }

  .standards-blade-row {
    padding: 12px 14px;
    flex-wrap: wrap;
    gap: 8px;
  }

  .hw-card {
    padding: 22px 18px;
    border-radius: 18px;
  }

  .sizer-card,
  .config-box,
  .tco-box {
    padding: 22px 16px;
    border-radius: 18px;
  }

  .cfg-summary,
  .sizer-result-box {
    padding: 20px 16px;
    border-radius: 16px;
  }

  .tco-metrics-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .tco-metric-item {
    padding: 16px;
  }

  .tco-metric-val {
    font-size: 1.45rem;
  }

  .form-row-2 {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .modal-overlay {
    padding: 12px;
  }

  .modal-box {
    padding: 24px 18px;
    border-radius: 18px;
  }

  .close-btn {
    top: 16px;
    right: 16px;
  }

  .dropzone-box {
    padding: 18px 14px;
    margin: 14px 0;
  }

  .dropzone-icon {
    width: 32px;
    height: 32px;
    margin-bottom: 6px;
  }

  .footer {
    padding: 48px 16px 96px;
  }
}

/* ==========================================================================
   BREAKPOINT: COMPACT PHONES (<= 400px)
   ========================================================================== */
@media (max-width: 400px) {
  .header {
    padding: 10px 12px;
    gap: 8px;
  }

  .header__logo_link {
    font-size: 1.12rem;
    gap: 6px;
  }

  .lang-opt {
    padding: 4px 7px;
    font-size: 0.7rem;
  }

  .hw-card-actions {
    flex-direction: column;
  }

  .hw-card-actions .pill-btn {
    width: 100% !important;
  }

  .hw-card-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .hw-card-footer .hw-quote-btn {
    width: 100%;
  }
}