/* ============================================================
   iotta Website — Design System
   Aesthetic: Precision Signal — technical, high-contrast,
   sensor-network data feeling. Syne + Inter.
   ============================================================ */

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  --green:        #8DC63F;
  --green-dark:   #6fa832;
  --green-dim:    rgba(141, 198, 63, 0.1);
  --black:        #0d0d0d;
  --surface-dark: #141414;
  --gray-900:     #111827;
  --gray-700:     #374151;
  --gray-600:     #4b5563;
  --gray-400:     #9ca3af;
  --gray-300:     #d1d5db;
  --gray-200:     #e5e7eb;
  --gray-100:     #f3f4f6;
  --white:        #ffffff;

  --font-display: 'Syne', sans-serif;
  --font-body:    'Inter', sans-serif;

  --max-w:        1200px;
  --radius:       6px;
  --radius-sm:    4px;

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

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }
address { font-style: normal; }

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 24px;
}
.section--dark   { background: var(--black);    color: var(--white); }
.section--gray   { background: var(--gray-100); }
.section--green  { background: var(--green);    color: var(--white); }
.section--white  { background: var(--white); }

/* Dot grid on dark sections — sensor network motif */
.section--dark {
  background: var(--black);
  background-image: radial-gradient(circle, rgba(141,198,63,0.07) 1px, transparent 1px);
  background-size: 32px 32px;
}

.inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

/* Two-column layout (reusable) */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; gap: 40px; }
}

/* Section header */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.section-header p {
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}
.section--dark .section-header p { color: var(--gray-400); }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
.eyebrow {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 20px;
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }
.reveal-d4 { transition-delay: 0.32s; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 2px solid transparent;
  transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.15s;
  cursor: pointer;
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; }

.btn-primary {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}
.btn-primary:hover { background: var(--green-dark); border-color: var(--green-dark); }

.btn-ghost-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.35);
}
.btn-ghost-white:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); }

.btn-ghost-dark {
  background: transparent;
  color: var(--gray-900);
  border-color: var(--gray-300);
}
.btn-ghost-dark:hover { background: var(--gray-100); border-color: var(--gray-400); }

/* ============================================================
   BADGE
   ============================================================ */
.badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.badge-green       { background: var(--green); color: var(--white); }
.badge-green-outline {
  border: 1.5px solid var(--green);
  color: var(--green);
  background: transparent;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.site-header.scrolled {
  border-color: var(--gray-200);
  box-shadow: 0 1px 16px rgba(0,0,0,0.07);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.45rem;
  color: var(--gray-900);
  letter-spacing: -0.03em;
  flex-shrink: 0;
}
.site-logo .dot { color: var(--green); }

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: color 0.18s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0; right: 0;
  height: 2px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s var(--ease-out);
}
.nav-links a:hover, .nav-links a.active { color: var(--gray-900); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-links a:focus-visible { outline: 2px solid var(--green); border-radius: 2px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
  border-radius: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-900);
  border-radius: 2px;
  transition: transform 0.22s, opacity 0.22s;
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 8px 24px 20px;
  border-top: 1px solid var(--gray-100);
  background: var(--white);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 13px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
  transition: color 0.18s;
}
.mobile-nav a:last-child { border-bottom: none; padding-bottom: 0; }
.mobile-nav a:hover { color: var(--green); }

@media (max-width: 820px) {
  .nav-links, .header-cta { display: none; }
  .hamburger { display: flex; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: #0a0a0a;
  color: var(--white);
  padding: 64px 24px 32px;
}
.footer-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 56px;
  margin-bottom: 48px;
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}
.footer-logo .dot { color: var(--green); }
.footer-tagline {
  font-size: 0.875rem;
  color: var(--gray-400);
  line-height: 1.5;
  max-width: 220px;
}
.footer-col-title {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 20px;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
  font-size: 0.875rem;
  color: #c4c4c4;
  transition: color 0.18s;
}
.footer-links a:hover { color: var(--green); }
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.875rem;
  color: #c4c4c4;
}
.footer-contact-item svg { flex-shrink: 0; color: var(--green); margin-top: 1px; }
.footer-contact-item a { color: #c4c4c4; transition: color 0.18s; }
.footer-contact-item a:hover { color: var(--green); }
.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: #555;
}
.footer-social a {
  color: #555;
  transition: color 0.18s;
}
.footer-social a:hover { color: var(--green); }

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

/* ============================================================
   HERO — HOMEPAGE
   ============================================================ */
.hero {
  background: var(--black);
  background-image: radial-gradient(circle, rgba(141,198,63,0.09) 1px, transparent 1px);
  background-size: 28px 28px;
  animation: grid-drift 24s linear infinite;
  color: var(--white);
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 80px 24px;
  position: relative;
  overflow: hidden;
}

@keyframes grid-drift {
  0%   { background-position: 0 0; }
  100% { background-position: 28px 28px; }
}

/* Subtle green glow at bottom-right */
.hero::after {
  content: '';
  position: absolute;
  bottom: -120px;
  right: -80px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(141,198,63,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--green);
  flex-shrink: 0;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--white);
}
.hero-title .accent { color: var(--green); }

.hero-subtitle {
  font-size: 1.1rem;
  color: #a0a0a0;
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 440px;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-visual {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
.hero-visual img, .hero-visual svg {
  width: 100%;
  max-width: 520px;
  filter: drop-shadow(0 0 40px rgba(141,198,63,0.12));
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .hero { min-height: 70vh; }
}

/* ============================================================
   HERO — INNER PAGES
   ============================================================ */
.hero-page {
  background: var(--black);
  background-image: radial-gradient(circle, rgba(141,198,63,0.07) 1px, transparent 1px);
  background-size: 28px 28px;
  animation: grid-drift 24s linear infinite;
  color: var(--white);
  min-height: 44vh;
  display: flex;
  align-items: flex-end;
  padding: 64px 24px 72px;
  position: relative;
  overflow: hidden;
}
.hero-page::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -60px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(141,198,63,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-page-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}
.hero-page-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 16px;
}
.hero-page-sub {
  font-size: 1.1rem;
  color: #a0a0a0;
  line-height: 1.7;
  max-width: 640px;
}

/* ============================================================
   PILLAR CARDS
   ============================================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}
.card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.09);
  transform: translateY(-3px);
  border-color: rgba(141,198,63,0.3);
}
.card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 44px;
  height: 44px;
  background: var(--green-dim);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  margin-bottom: 20px;
}
.card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.card-text {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.65;
  margin-bottom: 18px;
}
.card-link {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--green);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: gap 0.2s;
}
.card-link:hover { gap: 9px; }
.card-badge-pos {
  position: absolute;
  top: 16px;
  right: 16px;
}

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

/* ============================================================
   SENSING STEPS ROW
   ============================================================ */
.steps-row {
  display: flex;
  gap: 0;
  align-items: flex-start;
}
.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 8px;
  position: relative;
}
.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 24px;
  right: -4px;
  width: 8px;
  height: 2px;
  background: var(--gray-300);
}
.step-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--green-dim);
  border: 1.5px solid rgba(141,198,63,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  margin-bottom: 12px;
  flex-shrink: 0;
}
.step-label { font-size: 0.78rem; font-weight: 700; color: var(--gray-900); margin-bottom: 4px; }
.step-desc  { font-size: 0.72rem; color: var(--gray-600); line-height: 1.45; }

@media (max-width: 768px) {
  .steps-row { flex-direction: column; gap: 24px; }
  .step { flex-direction: row; text-align: left; gap: 16px; padding: 0; align-items: flex-start; }
  .step:not(:last-child)::after { display: none; }
}

/* ============================================================
   ZIGZAG BLOCKS
   ============================================================ */
.zigzag-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 72px 0;
  border-bottom: 1px solid var(--gray-200);
}
.zigzag-block:last-child { border-bottom: none; padding-bottom: 0; }
.zigzag-block.reverse .zigzag-text { order: 2; }
.zigzag-block.reverse .zigzag-visual { order: 1; }

.zigzag-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 12px;
}
.zigzag-text h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.zigzag-text p {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 24px;
}
.zigzag-visual {
  background: var(--gray-100);
  border-radius: 10px;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-size: 0.78rem;
  font-weight: 500;
  border: 1px dashed var(--gray-300);
}

@media (max-width: 768px) {
  .zigzag-block { grid-template-columns: 1fr; gap: 32px; padding: 48px 0; }
  .zigzag-block.reverse .zigzag-text,
  .zigzag-block.reverse .zigzag-visual { order: unset; }
}

/* ============================================================
   SOCIAL PROOF / LOGO MARQUEE
   ============================================================ */
.logo-marquee-wrapper {
  overflow: hidden;
  width: 100%;
  margin-top: 8px;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}
.logo-marquee-track {
  display: flex;
  align-items: center;
  gap: 56px;
  width: max-content;
  animation: marquee 40s linear infinite;
}
.logo-marquee-track:hover { animation-play-state: paused; }
.logo-marquee-track img {
  height: 52px;
  width: 148px;
  object-fit: contain;
  flex-shrink: 0;
}

@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .logo-marquee-track { animation: none; }
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  max-width: 1100px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .testimonials-grid { grid-template-columns: 1fr; gap: 40px; }
}

.testimonial {
  text-align: center;
}
.testimonial-mark {
  font-family: var(--font-display);
  font-size: 5rem;
  line-height: 0.6;
  color: var(--green);
  margin-bottom: 24px;
  display: block;
  opacity: 0.8;
}
.testimonial-quote {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--white);
  margin-bottom: 28px;
}
.testimonial-attrib { font-size: 0.875rem; color: var(--green); font-weight: 600; letter-spacing: 0.02em; }

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  text-align: center;
}
.cta-banner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  color: var(--white);
}

/* ============================================================
   TEAM CARDS
   ============================================================ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 200px);
  gap: 40px;
  justify-content: center;
}
@media (max-width: 900px) {
  .team-grid { grid-template-columns: repeat(2, 200px); }
}
.team-card { text-align: center; }
.team-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--gray-200);
  margin: 0 auto 18px;
  overflow: hidden;
  border: 3px solid transparent;
  transition: border-color 0.2s;
  position: relative;
}
.team-card:hover .team-photo { border-color: var(--green); }

.team-photo-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s;
  padding: 8px;
}
.team-card:hover .team-photo-overlay { opacity: 1; }
.team-photo-overlay a {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--green);
  text-align: center;
  word-break: break-all;
  line-height: 1.4;
}
.team-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.team-role { font-size: 0.875rem; color: var(--gray-600); }

@media (max-width: 640px) {
  .team-grid { grid-template-columns: 1fr; max-width: 220px; }
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline {
  display: flex;
  position: relative;
  padding-top: 28px;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 19px;
  left: 0; right: 0;
  height: 2px;
  background: var(--gray-200);
}
.timeline-item {
  flex: 1;
  text-align: center;
  position: relative;
  padding-top: 20px;
}
.timeline-dot {
  position: absolute;
  top: -19px;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--green);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--green);
}
.timeline-year  { font-size: 0.82rem; font-weight: 700; color: var(--green); letter-spacing: 0.04em; }
.timeline-label { font-size: 0.76rem; color: var(--gray-600); margin-top: 5px; line-height: 1.45; }

@media (max-width: 640px) {
  .timeline { flex-direction: column; padding: 0 0 0 36px; }
  .timeline::before { top: 0; bottom: 0; left: 15px; right: auto; width: 2px; height: auto; }
  .timeline-item { text-align: left; padding: 0 0 28px 20px; }
  .timeline-dot { top: 3px; left: -21px; transform: none; }
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.form-col-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 7px;
  color: var(--gray-700);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--gray-900);
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(141,198,63,0.15);
}
.form-group textarea { min-height: 148px; resize: vertical; line-height: 1.6; }

.form-success {
  display: none;
  background: #f0f7e8;
  border: 1.5px solid var(--green);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  color: #3a6419;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.contact-detail-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.5;
}
.contact-detail-item svg { flex-shrink: 0; color: var(--green); margin-top: 2px; }
.contact-detail-item a { color: var(--green); transition: opacity 0.18s; }
.contact-detail-item a:hover { opacity: 0.75; }
.map-embed { border-radius: var(--radius); overflow: hidden; margin-top: 28px; }
.map-embed iframe { width: 100%; height: 240px; border: 0; display: block; }

@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; gap: 48px; } }

/* ============================================================
   KLANTCASES
   ============================================================ */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: box-shadow 0.2s, transform 0.2s;
}
.case-card:hover { box-shadow: 0 8px 28px rgba(0,0,0,0.08); transform: translateY(-2px); }
.case-photo {
  height: 164px;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-size: 0.76rem;
  font-weight: 500;
  border-bottom: 1px dashed var(--gray-200);
  /* vervang door: <img src="assets/cases/[case].jpg" alt="..." style="width:100%;height:164px;object-fit:cover"> */
}
.case-body { padding: 22px; }
.case-sector {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 8px;
}
.case-quote { font-size: 0.9rem; color: var(--gray-600); line-height: 1.65; font-style: italic; }

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

/* ============================================================
   VALUES GRID (AI page)
   ============================================================ */
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card {
  padding: 32px 28px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--gray-200);
  text-align: center;
  transition: box-shadow 0.2s, transform 0.2s;
}
.value-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,0.07); transform: translateY(-2px); }
.value-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--green-dim);
  border: 1.5px solid rgba(141,198,63,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  margin: 0 auto 16px;
}
.value-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.value-card p { font-size: 0.875rem; color: var(--gray-600); line-height: 1.65; }

@media (max-width: 768px) { .values-grid { grid-template-columns: 1fr; } }

/* ============================================================
   DARK CARDS (Partnering "Wat levert iotta")
   ============================================================ */
.card-dark {
  background: var(--surface-dark);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s;
}
.card-dark::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}
.card-dark:hover { border-color: rgba(141,198,63,0.2); }
.card-dark:hover::before { transform: scaleX(1); }
.card-dark .card-icon { background: rgba(141,198,63,0.08); }
.card-dark .card-title { color: var(--white); }
.card-dark .card-text  { color: #8a8a8a; }

/* ============================================================
   SENSOR PULSE ANIMATION
   ============================================================ */
@keyframes sensor-pulse {
  0%   { r: 8;  opacity: 0.7; }
  100% { r: 22; opacity: 0; }
}
.pulse {
  animation: sensor-pulse 2.4s ease-out infinite;
  transform-origin: center;
}
.pulse.d1 { animation-delay: 0s; }
.pulse.d2 { animation-delay: 0.6s; }
.pulse.d3 { animation-delay: 0.3s; }
.pulse.d4 { animation-delay: 0.9s; }
.pulse.d5 { animation-delay: 0.15s; }
.pulse.d6 { animation-delay: 0.75s; }

/* ============================================================
   UTILITIES
   ============================================================ */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.text-green  { color: var(--green); }
.text-center { text-align: center; }
.mt-8  { margin-top: 8px;  }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-0  { margin-bottom: 0; }

@media (max-width: 768px) {
  .section { padding: 64px 20px; }
  .hero-page { padding: 48px 20px 64px; }
}