/* ==========================================================================
   D25 TECHNOLOGIES — SWISS PRECISION BRAND SYSTEM
   Primary Accent Red:   #B81D34 / #C8102E (Derived from logo accent slash)
   Industrial Taupe:     #6E6862 / #4A4540 (Derived from logo typography mark)
   Warm Canvas BG:       #FAF8F5 / #F3EFEA (Exact warm off-white canvas)
   Dark Charcoal Text:   #1A1816 (Crisp high-contrast Swiss typography)
   ========================================================================== */

:root {
  --brand-red: #B81D34;
  --brand-red-dark: #8E1326;
  --brand-taupe: #6E6862;
  --brand-taupe-dark: #4A4540;
  --brand-bg: #FAF8F5;
  --brand-bg-soft: #F3EFEA;
  --brand-surface: #FFFFFF;
  --brand-ink: #1A1816;
  --brand-border: #E4DFD7;
  
  --font-head: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --transition-fast: 0.15s ease;
  --transition-smooth: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  background-color: var(--brand-bg);
  color: var(--brand-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* CONTAINER & LAYOUT STRUCTURE */
.container {
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}

/* TYPOGRAPHY */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 16px 0;
  color: var(--brand-ink);
}

p {
  margin: 0 0 16px 0;
}

/* BUTTONS & ACTIONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.btn-primary {
  background-color: var(--brand-red);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--brand-red-dark);
}

.btn-outline {
  background-color: transparent;
  color: var(--brand-ink);
  border-color: var(--brand-taupe);
}

.btn-outline:hover {
  border-color: var(--brand-ink);
  background-color: rgba(26, 24, 22, 0.04);
}

.btn-outline-white {
  background-color: transparent;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
  border-color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.1);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* TELEMETRY TOP BAR */
.metric-bar {
  background-color: var(--brand-taupe-dark);
  color: #FAF8F5;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  padding: 8px 0;
  border-bottom: 1px solid var(--brand-taupe);
}

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

.metric-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 8px #22C55E;
}

.metric-item .label {
  color: #D1CCC4;
}

.metric-item .val {
  color: #FFFFFF;
}

/* SITE HEADER & NAVIGATION */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--brand-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--brand-ink);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--brand-red);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-menu a:not(.btn) {
  text-decoration: none;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--brand-taupe-dark);
  transition: color var(--transition-fast);
}

.nav-menu a:not(.btn):hover {
  color: var(--brand-red);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  width: 32px;
  height: 32px;
  cursor: pointer;
  position: relative;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--brand-ink);
  margin: 6px 0;
  transition: transform var(--transition-fast);
}

/* HERO SECTION */
.hero {
  padding: 80px 0 90px;
  border-bottom: 1px solid var(--brand-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  margin-bottom: 24px;
}

.tag-crimson {
  color: var(--brand-red);
  font-weight: 700;
}

.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
}

.accent-text {
  color: var(--brand-red);
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--brand-taupe-dark);
  max-width: 580px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.client-strip {
  border-top: 1px solid var(--brand-border);
  padding-top: 24px;
}

.strip-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--brand-taupe);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.strip-items {
  display: flex;
  gap: 12px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--brand-taupe-dark);
}

/* HERO PANEL ARCHITECTURE */
.hero-card-panel {
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-left: 4px solid var(--brand-red);
  border-radius: 4px;
  padding: 28px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.03);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--brand-border);
  padding-bottom: 12px;
  margin-bottom: 20px;
}

.panel-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--brand-taupe-dark);
}

.panel-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background-color: rgba(34, 197, 94, 0.1);
  color: #166534;
  padding: 2px 8px;
  border-radius: 2px;
}

.arch-block {
  background-color: var(--brand-bg);
  border: 1px solid var(--brand-border);
  padding: 14px 16px;
  border-radius: 4px;
}

.arch-block.active {
  border-color: var(--brand-red);
  background-color: rgba(184, 29, 52, 0.02);
}

.arch-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--brand-red);
  font-weight: 600;
}

.arch-desc {
  font-size: 0.85rem;
  font-weight: 500;
  margin: 4px 0 0 0;
}

.arch-arrow {
  text-align: center;
  color: var(--brand-taupe);
  margin: 6px 0;
  font-size: 0.9rem;
}

.panel-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--brand-border);
}

.stat-mini span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--brand-taupe);
}

.stat-mini strong {
  font-family: var(--font-head);
  font-size: 0.95rem;
  color: var(--brand-ink);
}

/* SECTIONS COMMON */
.section {
  padding: 90px 0;
}

.section-bordered {
  border-bottom: 1px solid var(--brand-border);
}

.section-soft {
  background-color: var(--brand-bg-soft);
  border-bottom: 1px solid var(--brand-border);
}

.section-header {
  max-width: 680px;
  margin-bottom: 56px;
}

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--brand-red);
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 700;
}

.section-lead {
  font-size: 1.05rem;
  color: var(--brand-taupe-dark);
}

/* CAPABILITIES GRID */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.cap-card {
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  padding: 36px 30px;
  border-radius: 4px;
  position: relative;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.cap-card:hover {
  border-color: var(--brand-red);
  transform: translateY(-2px);
}

.cap-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--brand-red);
  margin-bottom: 20px;
}

.cap-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.cap-card p {
  color: var(--brand-taupe-dark);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--brand-border);
  padding-top: 20px;
}

.spec-list li {
  font-size: 0.85rem;
  color: var(--brand-ink);
  margin-bottom: 10px;
  padding-left: 18px;
  position: relative;
}

.spec-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--brand-red);
}

/* TELEMETRY & CHART SECTION */
.chart-wrapper-box {
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-radius: 4px;
  padding: 36px;
}

.chart-controls {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--brand-border);
  padding-bottom: 16px;
}

.chart-tab {
  background: none;
  border: 1px solid var(--brand-border);
  padding: 10px 20px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--brand-taupe-dark);
  cursor: pointer;
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.chart-tab.active {
  background-color: var(--brand-red);
  color: #FFFFFF;
  border-color: var(--brand-red);
}

.chart-canvas-container {
  position: relative;
  width: 100%;
  margin-bottom: 36px;
}

.chart-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid var(--brand-border);
  padding-top: 28px;
}

.meta-box {
  background-color: var(--brand-bg);
  border: 1px solid var(--brand-border);
  padding: 16px;
  border-radius: 4px;
}

.meta-title {
  display: block;
  font-size: 0.78rem;
  color: var(--brand-taupe);
  margin-bottom: 4px;
}

.meta-value {
  display: block;
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--brand-ink);
  margin-bottom: 6px;
}

.meta-status.passed {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--brand-red);
  font-weight: 600;
}

/* WORKFORCE GRID */
.workforce-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.workforce-chart-card {
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  padding: 32px;
  border-radius: 4px;
}

.workforce-chart-card h3 {
  margin-bottom: 4px;
}

.subtext {
  font-size: 0.85rem;
  color: var(--brand-taupe);
  margin-bottom: 24px;
}

.chart-canvas-container-sm {
  max-width: 320px;
  margin: 0 auto;
}

.workforce-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.wf-stat-card {
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-top: 3px solid var(--brand-red);
  padding: 24px;
  border-radius: 4px;
}

.wf-num {
  display: block;
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--brand-ink);
  line-height: 1;
  margin-bottom: 8px;
}

.wf-label {
  font-size: 0.85rem;
  color: var(--brand-taupe-dark);
}

/* DELIVERIES LIST */
.deliveries-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.delivery-row {
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  padding: 32px;
  border-radius: 4px;
  display: grid;
  grid-template-columns: 1fr 1.5fr 0.8fr;
  gap: 32px;
  align-items: center;
}

.client-cat {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--brand-red);
  font-weight: 700;
  margin-bottom: 6px;
  display: block;
}

.delivery-meta h3 {
  font-size: 1.2rem;
  margin: 0;
}

.delivery-desc p {
  font-size: 0.92rem;
  color: var(--brand-taupe-dark);
  margin-bottom: 14px;
}

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

.tags span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background-color: var(--brand-bg);
  border: 1px solid var(--brand-border);
  padding: 3px 8px;
  border-radius: 2px;
}

.delivery-metric {
  text-align: right;
  border-left: 1px solid var(--brand-border);
  padding-left: 32px;
}

.metric-number {
  display: block;
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--brand-red);
  line-height: 1;
}

.metric-desc {
  font-size: 0.8rem;
  color: var(--brand-taupe);
}

/* REVIEWS GRID */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.review-card {
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  padding: 32px;
  border-radius: 4px;
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: var(--brand-red);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.review-card blockquote {
  margin: 0 0 24px 0;
  font-size: 0.95rem;
  color: var(--brand-ink);
  line-height: 1.6;
}

.review-card figcaption {
  border-top: 1px solid var(--brand-border);
  padding-top: 16px;
}

.review-card figcaption strong {
  display: block;
  font-family: var(--font-head);
  font-size: 0.9rem;
}

.review-card figcaption span {
  font-size: 0.8rem;
  color: var(--brand-taupe);
}

/* CTA SECTION */
.cta-section {
  background-color: var(--brand-taupe-dark);
  color: #FFFFFF;
  padding: 80px 0;
}

.cta-box {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.cta-box h2 {
  color: #FFFFFF;
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: 16px;
}

.cta-box p {
  color: #D1CCC4;
  font-size: 1.1rem;
  margin-bottom: 36px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* FOOTER */
.site-footer {
  background-color: var(--brand-surface);
  border-top: 1px solid var(--brand-border);
  padding: 72px 0 36px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-tagline {
  font-size: 0.88rem;
  color: var(--brand-taupe-dark);
  margin-top: 16px;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--brand-red);
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--brand-taupe-dark);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--brand-red);
}

.footer-col p {
  font-size: 0.88rem;
  color: var(--brand-taupe-dark);
  margin-bottom: 8px;
}

.small-text {
  font-size: 0.78rem;
  color: var(--brand-taupe);
  margin-top: 12px;
}

.footer-bottom {
  border-top: 1px solid var(--brand-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--brand-taupe);
}

.footer-links a {
  color: var(--brand-taupe);
  text-decoration: none;
}

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

/* MODAL STYLES */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(26, 24, 22, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-top: 4px solid var(--brand-red);
  border-radius: 4px;
  padding: 40px;
  width: min(540px, 100% - 32px);
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  font-size: 1.8rem;
  color: var(--brand-taupe);
  cursor: pointer;
}

.modal-sub {
  font-size: 0.88rem;
  color: var(--brand-taupe-dark);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--brand-border);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  background-color: var(--brand-bg);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand-red);
}

/* RESPONSIVE BREAKPOINTS */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .capabilities-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }

  .workforce-grid {
    grid-template-columns: 1fr;
  }

  .delivery-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .delivery-metric {
    text-align: left;
    border-left: none;
    border-top: 1px solid var(--brand-border);
    padding-left: 0;
    padding-top: 16px;
  }

  .chart-meta-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .metric-bar {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background-color: var(--brand-surface);
    border-bottom: 1px solid var(--brand-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 16px;
    display: none;
  }

  .nav-menu.active {
    display: flex;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}