/* ════════════════════════════════════════════════
   PHUE NGUYEN AI & ANALYTICS CONSULTING SERVICES
   Main Stylesheet
   ════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────
   DESIGN TOKENS
───────────────────────────────────────────── */
:root {
  /* Colors */
  --color-bg:         #f8fafc;
  --color-bg-card:    #ffffff;
  --color-bg-dark:    #0f172a;
  --color-bg-subtle:  #f1f5f9;
  --color-border:     rgba(0,0,0,0.08);
  --color-border-hover: rgba(14,165,233,0.35);

  --color-teal:       #0ea5e9;
  --color-teal-dim:   rgba(14,165,233,0.10);
  --color-teal-glow:  rgba(14,165,233,0.25);

  --color-white:      #ffffff;
  --color-text:       #1e293b;
  --color-muted:      #64748b;
  --color-light:      #475569;

  /* Typography */
  --font-body:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Syne', var(--font-body);

  /* Spacing */
  --section-py: 36px;
  --container-max: 1200px;
  --container-px: 16px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-fast: cubic-bezier(0.16, 1, 0.3, 1);

  /* Nav */
  --nav-h: 64px;
}

/* ─────────────────────────────────────────────
   RESET & BASE
───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
  max-width: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 14px;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font: inherit; }

/* ─────────────────────────────────────────────
   UTILITIES
───────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.text-white  { color: var(--color-white) !important; }
.text-muted  { color: var(--color-muted) !important; }
.text-teal   { color: var(--color-teal)  !important; }

/* ─────────────────────────────────────────────
   BUTTONS
───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  transition: all 0.2s var(--ease);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.btn-lg { padding: 14px 32px; font-size: 1rem; }

.btn-primary {
  background: var(--color-teal);
  color: #fff;
}
.btn-primary:hover {
  background: #0284c7;
  box-shadow: 0 0 32px var(--color-teal-glow);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--color-light);
  border: 1.5px solid var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-teal);
  color: var(--color-teal);
  background: var(--color-teal-dim);
}

.btn-ghost-light {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.35);
}
.btn-ghost-light:hover {
  border-color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.08);
}

.btn-block { width: 100%; }

.btn-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ─────────────────────────────────────────────
   SECTION LAYOUT
───────────────────────────────────────────── */
.section {
  padding-block: var(--section-py);
}

.section-dark {
  background: var(--color-bg-dark);
}

.section-subtle {
  background: var(--color-bg-subtle);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: 20px;
}

.section-header-light { color: var(--color-white); }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 8px;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1.5px;
  background: var(--color-muted);
}
.section-label-teal { color: var(--color-teal); }
.section-label-teal::before { background: var(--color-teal); }

.section-title {
  font-family: var(--font-body);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.15;
  color: #0f172a;
  margin-bottom: 10px;
  letter-spacing: -0.015em;
}

.section-sub {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ─────────────────────────────────────────────
   NAVIGATION
───────────────────────────────────────────── */
.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(248,250,252,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease), backdrop-filter 0.3s;
}

.nav-header.scrolled {
  background: rgba(248,250,252,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav-container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 1;
  min-width: 0;
}

/* Full company name shown in nav — font sized to fit all tabs */

.logo-mark {
  width: 36px;
  height: 30px;
  background: var(--color-teal);
  color: #000;
  font-weight: 800;
  font-size: 0.625rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.68rem;
  color: #0f172a;
  line-height: 1.3;
  max-width: 280px;
  white-space: normal;
}

.logo-accent { color: var(--color-teal); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-links a {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: color 0.2s;
  white-space: nowrap;
}
.nav-links a:hover { color: #0f172a; }

.nav-cta {
  background: var(--color-teal) !important;
  color: #fff !important;
  font-weight: 600 !important;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  transition: all 0.2s var(--ease) !important;
}
.nav-cta:hover {
  background: #0284c7 !important;
  box-shadow: 0 0 20px var(--color-teal-glow);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.25s var(--ease);
}
.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ─────────────────────────────────────────────
   HERO
───────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  animation: orbFloat 8s ease-in-out infinite;
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14,165,233,0.15) 0%, transparent 70%);
  top: -200px;
  left: -100px;
  animation-delay: 0s;
}

.hero-orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, transparent 70%);
  bottom: -150px;
  right: -80px;
  animation-delay: 4s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0); }
  33%       { transform: translate(30px, -40px); }
  66%       { transform: translate(-20px, 20px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: 40px;
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-teal);
  background: var(--color-teal-dim);
  border: 1px solid rgba(14,165,233,0.2);
  border-radius: 100px;
  padding: 6px 14px;
  margin-bottom: 28px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-teal);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--font-body);
  font-size: clamp(1.6rem, 4vw, 2.75rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: #0f172a;
  margin-bottom: 16px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-teal) 0%, #7eb8ff 60%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 0.975rem;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-inline: 28px;
}
.hero-stat:first-child { padding-left: 0; }

.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--color-muted);
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
  flex-shrink: 0;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  z-index: 1;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  50%       { opacity: 0.4; transform: scaleY(0.6); transform-origin: top; }
}

/* ─────────────────────────────────────────────
   MARQUEE
───────────────────────────────────────────── */
.marquee-section {
  padding-block: 48px;
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.marquee-label {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.marquee-track-wrapper {
  position: relative;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 32px;
  width: max-content;
  animation: marquee 30s linear infinite;
}

.marquee-track span {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color 0.2s;
}
.marquee-track span:hover { color: var(--color-teal); }

.marquee-dot {
  color: var(--color-border) !important;
  font-size: 1.25rem !important;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─────────────────────────────────────────────
   SERVICES GRID
───────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  background: var(--color-bg-dark);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-teal), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.service-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(56,189,248,0.12);
  background: #162032;
}
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 48px;
  height: 48px;
  color: var(--color-teal);
  margin-bottom: 20px;
}
.service-icon svg { width: 100%; height: 100%; }

.service-num {
  position: absolute;
  top: 28px;
  right: 28px;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: rgba(255,255,255,0.06);
  letter-spacing: -0.02em;
  user-select: none;
}

.service-card h3 {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
  color: #f1f5f9;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.service-card p {
  font-size: 0.9375rem;
  color: #94a3b8;
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-list {
  margin-bottom: 28px;
}
.service-list li {
  font-size: 0.875rem;
  color: #94a3b8;
  padding-block: 4px;
  padding-left: 16px;
  position: relative;
}
.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-teal);
  opacity: 0.6;
}

.service-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-teal);
  transition: gap 0.2s, opacity 0.2s;
  display: inline-block;
}
.service-link:hover { opacity: 0.7; }

/* ─────────────────────────────────────────────
   PROCESS STEPS
───────────────────────────────────────────── */
.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.process-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.process-step:hover {
  background: #f0f9ff;
  border-color: var(--color-border-hover);
  box-shadow: 0 8px 32px rgba(14,165,233,0.08);
}

.step-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-teal);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.step-content h3 {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
  color: #0f172a;
  margin-bottom: 12px;
}

.step-content p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.7;
}

.process-connector {
  width: 48px;
  flex-shrink: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-border), var(--color-teal-glow), var(--color-border));
  align-self: center;
  margin-top: -24px;
}

/* ─────────────────────────────────────────────
   TECH STACK
───────────────────────────────────────────── */
.tech-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.tech-category {
  background: var(--color-bg-card);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: border-color 0.25s;
}
.tech-category:hover { border-color: rgba(56,189,248,0.4); }

.tech-cat-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #0369a1;
  margin-bottom: 16px;
}

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

.tech-tag {
  font-size: 0.8125rem;
  font-weight: 500;
  color: #374151;
  background: rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.tech-tag:hover {
  background: var(--color-teal-dim);
  border-color: rgba(56,189,248,0.3);
  color: #0369a1;
}

/* ─────────────────────────────────────────────
   RESULTS
───────────────────────────────────────────── */
.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.result-card {
  background: var(--color-bg-card);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
}
.result-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.08);
}

.result-card-featured {
  border-color: rgba(14,165,233,0.2);
  background: linear-gradient(135deg, rgba(14,165,233,0.04) 0%, var(--color-bg-card) 60%);
  position: relative;
  overflow: hidden;
}
.result-card-featured::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-teal), #7eb8ff, #a78bfa);
}

.result-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-teal);
  background: var(--color-teal-dim);
  border: 1px solid rgba(14,165,233,0.2);
  border-radius: 100px;
  padding: 4px 12px;
  margin-bottom: 10px;
}

.result-card h3 {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  color: #12121e;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.result-card p {
  font-size: 0.9rem;
  color: #4b5563;
  line-height: 1.6;
  margin-bottom: 16px;
}

.result-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 16px;
}

.result-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-value {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: #12121e;
  letter-spacing: -0.02em;
}
.result-card-featured .metric-value { color: var(--color-teal); }

.metric-label {
  font-size: 0.8125rem;
  color: #4b5563;
  font-weight: 500;
}

.result-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.result-stack span {
  font-size: 0.8125rem;
  font-weight: 500;
  color: #4b5563;
  background: rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.09);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
}
.result-roi-note {
  font-size: 0.8rem;
  color: #92400e;
  background: #fef3c7;
  border: 1px solid #fde68a;
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  margin-top: 0.75rem;
  line-height: 1.5;
}

/* ─────────────────────────────────────────────
   RESULTS — INDUSTRY SUBTABS
───────────────────────────────────────────── */
.results-tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.results-tab-btn {
  background: transparent;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 100px;
  padding: 8px 18px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: #4b5563;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.results-tab-btn:hover {
  background: var(--color-teal-dim);
  border-color: rgba(14,165,233,0.3);
  color: var(--color-teal);
}
.results-tab-btn.active {
  background: var(--color-teal-dim);
  border-color: var(--color-teal);
  color: var(--color-teal);
}

.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
}

.construction-case {
  padding: 4px 0 16px;
}
.construction-case .result-metrics {
  margin-top: 14px;
}
.construction-case .pilot-link {
  display: inline-block;
  margin-top: 10px;
}

.case-divider {
  border: none;
  border-top: 1px solid rgba(0,0,0,0.08);
  margin: 4px 0 20px;
}


.pilot-bullets {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.pilot-bullets li {
  padding-left: 20px;
  position: relative;
  font-size: 0.9rem;
  color: #4b5563;
  line-height: 1.6;
}
.pilot-bullets li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--color-teal);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.4;
}
.pilot-bullets li p {
  margin: 0;
}
.pilot-link {
  color: var(--color-teal);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  font-weight: 500;
  transition: opacity 0.15s;
}
.pilot-link:hover {
  opacity: 0.75;
}

/* ─────────────────────────────────────────────
   ABOUT
───────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-values {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-value {
  min-width: 0;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.value-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  line-height: 1.4;
}

.about-value strong {
  display: block;
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.about-value p {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.about-card {
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 44px 36px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-teal), transparent);
}

.about-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-teal) 0%, #3b82f6 100%);
  color: #000;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  margin-bottom: 20px;
}

.about-card h3 {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.about-title {
  font-size: 0.875rem;
  color: var(--color-teal);
  font-weight: 600;
  margin-bottom: 20px;
}

.about-bio {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.about-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.about-skills span {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-teal);
  background: var(--color-teal-dim);
  border: 1px solid rgba(14,165,233,0.2);
  border-radius: 100px;
  padding: 4px 12px;
}

/* ─────────────────────────────────────────────
   DIFFERENTIATORS
───────────────────────────────────────────── */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.diff-item {
  padding: 32px 28px;
  background: var(--color-bg-card);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius-md);
  transition: border-color 0.25s, transform 0.25s;
}
.diff-item:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-3px);
}

.diff-icon {
  width: 40px;
  height: 40px;
  color: var(--color-teal);
  margin-bottom: 16px;
}
.diff-icon svg { width: 100%; height: 100%; }

.diff-item h4 {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 600;
  color: #12121e;
  margin-bottom: 10px;
}

.diff-item p {
  font-size: 0.9375rem;
  color: #4b5563;
  line-height: 1.65;
}

/* ─────────────────────────────────────────────
   CTA BAND
───────────────────────────────────────────── */
.cta-band {
  position: relative;
  padding-block: 100px;
  background: linear-gradient(135deg, #001e3c 0%, #00111f 50%, #0d0a24 100%);
  overflow: hidden;
}

.cta-band-orb {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(56,189,248,0.2) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(80px);
  pointer-events: none;
}

.cta-band-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-band-text h2 {
  font-family: var(--font-body);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.015em;
  margin-bottom: 12px;
  max-width: 540px;
}

.cta-band-text p {
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.6;
  max-width: 480px;
}

.cta-band-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex-shrink: 0;
}

/* ─────────────────────────────────────────────
   SCHEDULE A CALL — Cal.com button + modal
───────────────────────────────────────────── */
.schedule-cta {
  margin-top: 1.5rem;
}

.btn-schedule {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #0f172a;
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 12px 24px;
  cursor: pointer;
  transition: background 0.2s var(--ease), transform 0.15s;
}
.btn-schedule:hover {
  background: #1e293b;
  transform: translateY(-1px);
}

.schedule-note {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--color-muted);
}

/* Modal overlay */
.cal-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  backdrop-filter: blur(3px);
}

.cal-modal {
  position: relative;
  background: #fff;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 860px;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: column;
}

.cal-modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: none;
  border: none;
  font-size: 1.6rem;
  line-height: 1;
  color: #64748b;
  cursor: pointer;
  z-index: 10;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.15s;
}
.cal-modal-close:hover { background: #f1f5f9; color: #0f172a; }

.cal-embed-container {
  flex: 1;
  overflow: auto;
  min-height: 600px;
}
.cal-embed-container iframe {
  width: 100%;
  height: 100%;
  min-height: 600px;
  border: none;
}

/* ─────────────────────────────────────────────
   CONTACT
───────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 40px;
  align-items: flex-start;
}

.contact-left .section-title {
  margin-top: 16px;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

.contact-info {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  background: var(--color-teal-dim);
  border: 1px solid rgba(14,165,233,0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-teal);
}
.contact-info-icon svg { width: 18px; height: 18px; }

.contact-info-item strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 4px;
}

.contact-info-item a,
.contact-info-item span {
  font-size: 0.9375rem;
  color: var(--color-muted);
}
.contact-info-item a:hover { color: var(--color-teal); }

/* Form */
.contact-form {
  background: var(--color-bg-card);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #12121e;
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: #12121e;
  font-size: 0.9375rem;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%236b7280'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 36px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px var(--color-teal-dim);
  background: rgba(56,189,248,0.03);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(0,0,0,0.35);
  opacity: 1;
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-note {
  font-size: 0.8125rem;
  color: #4b5563;
  text-align: center;
  margin-top: 16px;
  line-height: 1.5;
}

.form-success {
  background: rgba(56,189,248,0.08);
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #0369a1;
  text-align: center;
  margin-top: 16px;
}

.form-error {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.25);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: #dc2626;
  text-align: center;
  margin-top: 16px;
}

/* ─────────────────────────────────────────────
   FOOTER
───────────────────────────────────────────── */
.footer {
  background: var(--color-bg-dark);
  border-top: 1px solid var(--color-border);
  padding-top: 44px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-logo { margin-bottom: 16px; }
.footer-logo .logo-text { color: #e2e8f0; }

.footer-tagline {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.6;
  max-width: 280px;
}

.footer-links-group h5 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-links-group ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-group a,
.footer-links-group span {
  font-size: 0.9375rem;
  color: var(--color-muted);
  transition: color 0.2s;
}
.footer-links-group a:hover { color: var(--color-teal); }

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.footer-social a svg { width: 16px; height: 16px; }
.footer-social a:hover {
  background: var(--color-teal-dim);
  border-color: rgba(56,189,248,0.3);
  color: var(--color-teal);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-block: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--color-muted);
}

.footer-disclaimer {
  font-style: italic;
}

/* ─────────────────────────────────────────────
   SCROLL ANIMATIONS
───────────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.services-grid .service-card:nth-child(1) { transition-delay: 0ms; }
.services-grid .service-card:nth-child(2) { transition-delay: 80ms; }
.services-grid .service-card:nth-child(3) { transition-delay: 160ms; }
.services-grid .service-card:nth-child(4) { transition-delay: 240ms; }
.services-grid .service-card:nth-child(5) { transition-delay: 320ms; }
.services-grid .service-card:nth-child(6) { transition-delay: 400ms; }

.diff-grid .diff-item:nth-child(1) { transition-delay: 0ms; }
.diff-grid .diff-item:nth-child(2) { transition-delay: 60ms; }
.diff-grid .diff-item:nth-child(3) { transition-delay: 120ms; }
.diff-grid .diff-item:nth-child(4) { transition-delay: 180ms; }
.diff-grid .diff-item:nth-child(5) { transition-delay: 240ms; }
.diff-grid .diff-item:nth-child(6) { transition-delay: 300ms; }

/* ─────────────────────────────────────────────
   ANIMATIONS
───────────────────────────────────────────── */
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─────────────────────────────────────────────
   RESPONSIVE — TABLET (< 1024px)
───────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --section-py: 24px; }

  .services-grid    { grid-template-columns: repeat(2, 1fr); }
  .tech-categories  { grid-template-columns: repeat(2, 1fr); }
  .diff-grid        { grid-template-columns: repeat(2, 1fr); }

  .about-values-row { grid-template-columns: repeat(2, 1fr) !important; }
  .team-grid        { grid-template-columns: repeat(2, 1fr); }

  .process-steps {
    flex-direction: column;
    gap: 16px;
  }
  .process-connector {
    width: 2px;
    height: 32px;
    align-self: center;
  }

  .cta-band-inner {
    flex-direction: column;
    text-align: center;
    gap: 36px;
  }
  .cta-band-text h2,
  .cta-band-text p { max-width: 100%; }
  .cta-band-actions {
    flex-direction: row;
    justify-content: center;
  }

  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-brand { grid-column: 1 / -1; }

  /* Nav: switch to hamburger at tablet width */
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(248,250,252,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 0;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
    z-index: 999;
  }
  .nav-links.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-links a {
    display: block;
    padding: 14px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-links a:last-child { border-bottom: none; }
  .nav-cta {
    margin-top: 8px;
    text-align: center;
    border-radius: var(--radius-sm) !important;
    padding: 12px !important;
  }
  .nav-hamburger { display: flex; }
}

/* ─────────────────────────────────────────────
   RESPONSIVE — MOBILE (< 768px)
───────────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --section-py: 32px;
    --container-px: 20px;
  }

  /* Hero */
  .hero-content { padding-block: 60px 100px; }
  .hero-stats   { flex-direction: column; gap: 20px; }
  .stat-divider { width: 40px; height: 1px; }
  .hero-scroll  { display: none; }

  .about-values-row { grid-template-columns: 1fr; }
  .team-grid        { grid-template-columns: 1fr; }

  .tech-categories  { grid-template-columns: 1fr; }
  .diff-grid        { grid-template-columns: 1fr; }
  .results-tabs-nav { gap: 6px; }
  .results-tab-btn  { font-size: 0.8125rem; padding: 6px 14px; }
  .contact-grid     { grid-template-columns: 1fr; gap: 48px; }
  .form-row         { grid-template-columns: 1fr; }

  /* Footer */
  .footer-top    { grid-template-columns: 1fr; }
  .footer-brand  { grid-column: auto; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 12px; }

  /* CTA */
  .cta-band-actions { flex-direction: column; }
}

/* ─────────────────────────────────────────────
   RESPONSIVE — SMALL MOBILE (< 480px)
───────────────────────────────────────────── */
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  .contact-form { padding: 28px 20px; }

  .result-card,
  .service-card { padding: 28px 24px; }
}

/* ─────────────────────────────────────────────
   ABOUT — FULL-WIDTH PRACTICE + TEAM GRID
───────────────────────────────────────────── */
.about-practice {
  margin-bottom: 1rem;
}

.about-practice-text {
  max-width: 820px;
}

.about-values-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1rem;
}

.about-value-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius-md);
  padding: 1rem 1.125rem;
  transition: border-color 0.25s, background 0.25s;
}
.about-value-card:hover {
  background: rgba(14,165,233,0.06);
  border-color: rgba(14,165,233,0.25);
}

/* Team Grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  align-items: start;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.25rem;
}

.team-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem;
  text-align: center;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.team-card:hover {
  border-color: rgba(14,165,233,0.35);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(14,165,233,0.08);
}

.team-photo-wrap {
  width: 150px;
  height: 185px;
  border-radius: 12px;
  overflow: hidden;
  margin: 0 auto 0.85rem;
  border: 2px solid rgba(14,165,233,0.3);
}
.team-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  display: block;
}

.team-avatar-placeholder {
  width: 150px;
  height: 185px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(14,165,233,0.18) 0%, rgba(59,130,246,0.18) 100%);
  border: 2px solid rgba(14,165,233,0.2);
  color: var(--color-teal);
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.85rem;
}

.team-name {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.2rem;
}

.team-title-role {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-teal);
  margin-bottom: 0.65rem;
  letter-spacing: 0.02em;
}

.team-bio {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.65;
  text-align: left;
  margin-bottom: 0.45rem;
}
.team-bio:last-of-type { margin-bottom: 0; }

.team-bio-placeholder {
  font-style: italic;
  opacity: 0.45;
  text-align: center;
}

.team-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  justify-content: center;
  margin-top: 0.65rem;
}
.team-skills span {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-teal);
  background: var(--color-teal-dim);
  border: 1px solid rgba(14,165,233,0.2);
  border-radius: 100px;
  padding: 2px 9px;
}

/* ─────────────────────────────────────────────
   ACCESSIBILITY
───────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 3px;
  border-radius: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-up { opacity: 1; transform: none; }
}

/* ─────────────────────────────────────────────
   PILOT SITE LINKS
───────────────────────────────────────────── */
.pilot-links {
  list-style: none;
  padding: 0;
  margin: 0 0 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.pilot-links li::before {
  content: '→';
  color: #3b82f6;
  font-weight: 700;
  margin-right: 7px;
}
.pilot-links a {
  color: #3b82f6;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.15s;
}
.pilot-links a:hover {
  color: #1d4ed8;
  text-decoration: underline;
}