/* =============================================
   idamond — Design System & Styles
   ============================================= */

:root {
  --color-bg:        #f5f7ff;
  --color-bg-2:      #eef1fb;
  --color-bg-card:   #ffffff;
  --color-bg-card-2: #f0f3ff;
  --color-border:    rgba(79,100,200,0.1);
  --color-border-2:  rgba(79,100,200,0.2);

  --color-accent:    #3b6bfa;
  --color-accent-2:  #6c47f5;
  --color-accent-3:  #00c9b1;
  --color-glow:      rgba(59,107,250,0.18);

  --color-text:      #111827;
  --color-text-2:    #4b5563;
  --color-text-3:    #9ca3af;

  --color-yes:       #059669;
  --color-no:        #dc2626;
  --color-partial:   #d97706;

  --font-body:       'Inter', sans-serif;
  --font-display:    'Space Grotesk', sans-serif;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --shadow-card: 0 1px 3px rgba(59,107,250,0.06), 0 8px 32px rgba(59,107,250,0.08);
  --shadow-glow: 0 0 60px rgba(59,107,250,0.12);

  --nav-height: 64px;
  --section-gap: 120px;
}

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

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

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

img, video { max-width: 100%; display: block; }

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

ul { list-style: none; }

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 0 24px rgba(79,124,255,0.35);
}
.btn--primary:hover {
  background: #6b94ff;
  transform: translateY(-1px);
  box-shadow: 0 0 36px rgba(79,124,255,0.5);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-2);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.25);
}

.btn--full { width: 100%; justify-content: center; }

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(245,247,255,0);
  backdrop-filter: blur(0px);
  transition: background 0.3s, backdrop-filter 0.3s, border-bottom 0.3s;
}

.nav.scrolled {
  background: rgba(245,247,255,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-2);
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--color-accent); }

.nav__cta {
  background: var(--color-accent);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
}
.nav__cta:hover { background: #6b94ff; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* hero background sweep — light version */
.hero {
  background: linear-gradient(160deg, #eef2ff 0%, #f5f7ff 50%, #f0f4ff 100%);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
}

.hero__orb--1 {
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, rgba(59,107,250,0.22) 0%, transparent 70%);
  top: -120px;
  right: -80px;
  animation: orbFloat 8s ease-in-out infinite;
}

.hero__orb--2 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(108,71,245,0.18) 0%, transparent 70%);
  bottom: 80px;
  left: -60px;
  animation: orbFloat 10s ease-in-out infinite reverse;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,107,250,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,107,250,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
}

@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-top: 80px;
  padding-bottom: 80px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(79,124,255,0.15);
  border: 1px solid rgba(79,124,255,0.3);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.hero__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero__title--accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2), var(--color-accent-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  max-width: 600px;
  font-size: 1.15rem;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-bottom: 36px;
  opacity: 0.85;
}

.hero__epo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: rgba(5,150,105,0.08);
  border: 1px solid rgba(5,150,105,0.28);
  border-radius: var(--radius-md);
  color: #047857;
  font-size: 0.88rem;
  line-height: 1.4;
  margin-bottom: 28px;
}

.hero__epo svg {
  flex-shrink: 0;
  color: #059669;
}

.stat__value--epo {
  color: #047857;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

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

.stat__value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-text);
}

.stat__unit {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
}

.stat__label {
  font-size: 0.8rem;
  color: var(--color-text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat__divider {
  width: 1px;
  height: 36px;
  background: var(--color-border-2);
}

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-3);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  z-index: 1;
  opacity: 0.6;
}

.hero__scroll-line {
  width: 40px;
  height: 1px;
  background: var(--color-text-3);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  animation: scrollLine 2s ease-in-out infinite;
}

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

/* ---- Section Base ---- */
.section {
  padding: var(--section-gap) 0;
}

.section__header {
  margin-bottom: 64px;
}

.section__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section__lead {
  font-size: 1.1rem;
  color: var(--color-text-2);
  max-width: 640px;
  line-height: 1.7;
}

/* ---- Problem Section ---- */
.problem { background: var(--color-bg); }

.problem__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
  margin-bottom: 64px;
}

.problem__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.problem__card:hover {
  border-color: rgba(59,107,250,0.3);
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(59,107,250,0.12);
}

.problem__card--large {
  grid-column: 1;
  grid-row: 1 / 3;
}

.problem__card--dark {
  background: var(--color-bg-card-2);
  grid-column: 3;
  grid-row: 1 / 3;
}

.problem__card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59,107,250,0.08);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  margin-bottom: 16px;
}

.problem__stat {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.problem__stat-label {
  font-size: 0.9rem;
  color: var(--color-text-2);
  margin-bottom: 12px;
}

.problem__card-text {
  font-size: 0.9rem;
  color: var(--color-text-3);
  line-height: 1.6;
}

.problem__biometrics { }

.problem__biometrics-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.problem__biometrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.problem__bio-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.problem__bio-item--bad { opacity: 0.75; }

.problem__bio-item--good {
  background: rgba(0,229,204,0.05);
  border-color: rgba(0,229,204,0.25);
}

.problem__bio-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  width: 48px;
  height: 48px;
  background: rgba(59,107,250,0.07);
  border-radius: var(--radius-md);
  color: var(--color-text-2);
}

.problem__bio-item--good .problem__bio-icon {
  background: rgba(0,201,177,0.1);
  color: var(--color-accent-3);
}

.problem__bio-item strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.problem__bio-item p {
  font-size: 0.8rem;
  color: var(--color-text-3);
  line-height: 1.5;
}

/* ---- Technology Section ---- */
.technology {
  background: var(--color-bg-2);
  position: relative;
}
.technology::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-2), transparent);
}
.technology::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-2), transparent);
}

.tech__how {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px;
  margin-bottom: 64px;
  box-shadow: var(--shadow-card);
}

.tech__how-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 36px;
}

.tech__steps {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.tech__step {
  flex: 1;
  min-width: 180px;
}

.tech__step-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.tech__step-content h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.tech__step-content p {
  font-size: 0.85rem;
  color: var(--color-text-2);
  line-height: 1.6;
}

.tech__step-arrow {
  flex-shrink: 0;
  color: var(--color-accent);
  font-size: 1.2rem;
  padding-top: 40px;
  opacity: 0.5;
}

.tech__innovations {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 64px;
}

.tech__innovation {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.tech__innovation:hover {
  border-color: rgba(59,107,250,0.3);
  box-shadow: 0 8px 40px rgba(59,107,250,0.12);
  transform: translateY(-3px);
}

.tech__innovation-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-2);
  background: rgba(123,92,250,0.1);
  border: 1px solid rgba(123,92,250,0.2);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.tech__innovation h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.3;
}

.tech__innovation p {
  font-size: 0.9rem;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-bottom: 16px;
}

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

.tech__list li {
  font-size: 0.82rem;
  color: var(--color-text-3);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}
.tech__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* Demo Video */
.tech__demo {
  margin-bottom: 64px;
}

.tech__demo-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.tech__demo-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  background: #000;
  line-height: 0;
  aspect-ratio: 16 / 9;
}

.tech__demo-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
}

/* Signal Cards */
.tech__signals { margin-bottom: 64px; }

.tech__signals-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.tech__signals-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tech__signal-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 20px 24px;
  text-align: center;
}

.tech__signal-vis {
  height: 72px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  overflow: hidden;
  background: var(--color-bg-2);
}

.signal-svg {
  width: 100%;
  height: 100%;
  display: block;
}

.tech__signal-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  margin: 0 auto 10px;
}

/* Uniqueness — blue, matching Subject A waveform colour */
.tech__signal-icon--unique {
  background: rgba(79,124,255,0.1);
  color: #4f7cff;
  border: 1px solid rgba(79,124,255,0.2);
}

/* Stability — teal, matching the stable waveform colour */
.tech__signal-icon--stable {
  background: rgba(0,229,204,0.1);
  color: #00e5cc;
  border: 1px solid rgba(0,229,204,0.2);
}

/* Revocability — amber, matching the expiry waveform colour */
.tech__signal-icon--expiry {
  background: rgba(240,164,51,0.1);
  color: #f0a433;
  border: 1px solid rgba(240,164,51,0.2);
}

.tech__signal-card h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.tech__signal-card p {
  font-size: 0.82rem;
  color: var(--color-text-2);
  line-height: 1.55;
}

/* Comparison Table */
.tech__comparison h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.tech__table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.tech__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.tech__table thead tr {
  background: var(--color-bg-2);
}

.tech__table th {
  padding: 14px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-2);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.tech__table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-2);
}

.tech__table tbody tr:last-child td { border-bottom: none; }

.tech__table-highlight {
  background: rgba(79,124,255,0.06);
}
.tech__table-highlight td { color: var(--color-text); }

.tech__table .yes  { color: var(--color-yes); font-weight: 700; text-align: center; }
.tech__table .no   { color: var(--color-no);  font-weight: 700; text-align: center; }
.tech__table .partial { color: var(--color-partial); font-weight: 700; text-align: center; }

/* ---- IP Section ---- */
.ip { background: var(--color-bg); }

.ip__grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 24px;
  margin-bottom: 64px;
  align-items: start;
}

.ip__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px;
}

.ip__card--featured {
  background: linear-gradient(135deg, rgba(79,124,255,0.08), rgba(123,92,250,0.05));
  border-color: rgba(79,124,255,0.25);
}

.ip__card-header {
  margin-bottom: 28px;
}

.ip__status {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.ip__status--filed {
  background: rgba(34,211,160,0.12);
  color: var(--color-yes);
  border: 1px solid rgba(34,211,160,0.25);
}

.ip__status--granted {
  background: rgba(5,150,105,0.12);
  color: #047857;
  border: 1px solid rgba(5,150,105,0.35);
  font-size: 0.75rem;
}

.ip__card-header h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
}

.ip__details {
  display: grid;
  gap: 16px;
}

.ip__detail {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.ip__detail:last-child { border-bottom: none; padding-bottom: 0; }

.ip__detail dt {
  font-size: 0.82rem;
  color: var(--color-text-3);
  font-weight: 500;
  flex-shrink: 0;
}

.ip__detail dd {
  font-size: 0.9rem;
  color: var(--color-text);
  font-weight: 500;
  text-align: right;
}

.ip__claims h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.ip__claims-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.ip__claims-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.ip__claims-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: rgba(79,124,255,0.15);
  border: 1px solid rgba(79,124,255,0.25);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-top: 2px;
}

.ip__claims-list strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.ip__claims-list p {
  font-size: 0.82rem;
  color: var(--color-text-3);
  line-height: 1.5;
}

.ip__acquisition h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.ip__acquisition-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.ip__acq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color 0.3s, transform 0.3s;
}

.ip__acq-item:hover {
  border-color: rgba(79,124,255,0.3);
  transform: translateY(-2px);
}

.ip__acq-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59,107,250,0.08);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  margin-bottom: 16px;
}

.ip__acq-item h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.ip__acq-item p {
  font-size: 0.82rem;
  color: var(--color-text-3);
  line-height: 1.6;
}

/* ---- Team Section ---- */
.team { background: var(--color-bg-2); }

.team__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
}

.team__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  transition: border-color 0.3s;
}
.team__card:hover { border-color: var(--color-border-2); }

.team__avatar {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
}

.team__avatar--photo {
  object-fit: cover;
  object-position: center top;
  border: 2px solid var(--color-border-2);
  box-shadow: 0 2px 12px rgba(59,107,250,0.12);
}

.team__info h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.team__role {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
  margin-bottom: 0;
}

.team__bio {
  font-size: 0.88rem;
  color: var(--color-text-2);
  line-height: 1.6;
  margin-bottom: 16px;
}

.team__credentials {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.team__linkedin {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 10px;
  margin-bottom: 14px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #0a66c2;
  background: rgba(10,102,194,0.08);
  border: 1px solid rgba(10,102,194,0.2);
  padding: 4px 10px;
  border-radius: 100px;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  white-space: nowrap;
}

.team__linkedin:hover {
  background: rgba(10,102,194,0.15);
  border-color: rgba(10,102,194,0.4);
  transform: translateY(-1px);
}

.team__linkedin svg {
  flex-shrink: 0;
}


.team__credentials li {
  font-size: 0.8rem;
  color: var(--color-text-3);
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}
.team__credentials li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 1.2rem;
  line-height: 1;
  top: 1px;
}

/* ---- Team Affiliations ---- */
.team__affiliations {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}
.team__affiliations-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}
.team__logos {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.team__logo {
  height: 22px;
  width: auto;
  max-width: 120px;
  opacity: 0.6;
  filter: grayscale(30%);
  transition: opacity 0.2s, filter 0.2s;
}
.team__logo--compact {
  height: 32px;
}
.team__logo:hover {
  opacity: 1;
  filter: grayscale(0%);
}

/* ---- Contact Section ---- */
.contact {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 70% 50%, rgba(59,107,250,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 30% 50%, rgba(108,71,245,0.06) 0%, transparent 70%);
}

.contact__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact__content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.contact__content p {
  font-size: 0.95rem;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-bottom: 28px;
}

.contact__process {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.contact__process-title {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-3);
  margin-bottom: 16px;
}

.contact__process-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact__process-steps li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contact__process-num {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(59,107,250,0.1);
  border: 1px solid rgba(59,107,250,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-top: 2px;
}

.contact__process-steps strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.contact__process-steps p {
  font-size: 0.82rem;
  color: var(--color-text-3);
  line-height: 1.5;
  margin-bottom: 0 !important;
}

.contact__nda {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem !important;
  color: var(--color-text-3) !important;
  margin-bottom: 4px !important;
  font-style: italic;
}

.contact__nda::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text-3);
  flex-shrink: 0;
}

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

.contact__point {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-text-2);
}

.contact__point span {
  color: var(--color-yes);
  font-weight: 700;
}

/* Form */
.contact__form-wrap {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-card);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form__group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-2);
  letter-spacing: 0.03em;
}

.form__group input,
.form__group select,
.form__group textarea {
  background: #ffffff;
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  width: 100%;
  appearance: none;
}

.form__group input::placeholder,
.form__group textarea::placeholder {
  color: var(--color-text-3);
}

.form__group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235a6372' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form__group select option { background: #ffffff; color: var(--color-text); }

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(79,124,255,0.12);
}

.form__group textarea { resize: vertical; min-height: 100px; }

.contact__direct {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--color-text-3);
}

.contact__email {
  color: var(--color-accent);
  font-weight: 500;
  font-size: 0.85rem;
  transition: color 0.2s;
}
.contact__email:hover { color: #6b94ff; }

/* Form success state */
.contact__form-wrap.submitted .contact__form { display: none; }
.contact__success {
  display: none;
  text-align: center;
  padding: 48px 24px;
}
.contact__form-wrap.submitted .contact__success { display: block; }
.contact__success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5,150,105,0.1);
  border: 1px solid rgba(5,150,105,0.25);
  border-radius: 50%;
  color: var(--color-yes);
}
.contact__success h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.contact__success p { color: var(--color-text-2); font-size: 0.9rem; }

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
  background: var(--color-bg);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 8px;
}

.footer__brand p {
  font-size: 0.85rem;
  color: var(--color-text-3);
  line-height: 1.5;
}

.footer__legal {
  margin-top: 8px;
  font-size: 0.75rem !important;
  color: var(--color-text-3) !important;
}

.footer__links {
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
}

.footer__links a {
  font-size: 0.85rem;
  color: var(--color-text-3);
  transition: color 0.2s;
}
.footer__links a:hover { color: var(--color-text-2); }

/* Signal visualizations are inline SVG */

/* ---- Animations / Reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }

/* ---- Responsive ---- */

/* Tablet — up to 1024px */
@media (max-width: 1024px) {
  .tech__innovations { grid-template-columns: 1fr 1fr; }
  .ip__acquisition-grid { grid-template-columns: 1fr 1fr; }
  .team__grid { max-width: 100%; }
}

/* Tablet portrait / large mobile — up to 900px */
@media (max-width: 900px) {
  :root { --section-gap: 80px; }

  /* Nav */
  .nav__links { display: none; }
  .nav__toggle { display: flex; }

  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(245,247,255,0.97);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border-2);
    backdrop-filter: blur(16px);
    box-shadow: 0 8px 32px rgba(59,107,250,0.1);
  }
  .nav__links.open a { font-size: 1rem; color: var(--color-text); }

  /* Hero */
  .hero__title { font-size: 2.8rem; }
  .hero__stats { gap: 20px; }

  /* Problem */
  .problem__grid { grid-template-columns: 1fr 1fr; }
  .problem__card--large { grid-column: 1 / 3; grid-row: 1; }
  .problem__card--dark  { grid-column: 1 / 3; grid-row: auto; }
  .problem__biometrics-grid { grid-template-columns: 1fr 1fr; }

  /* Technology */
  .tech__how { padding: 32px 28px; }
  .tech__steps { flex-direction: column; gap: 16px; }
  .tech__step-arrow { transform: rotate(90deg); padding-top: 0; align-self: center; opacity: 0.35; }
  .tech__innovations { grid-template-columns: 1fr; }
  .tech__signals-grid { grid-template-columns: 1fr 1fr; }

  /* IP */
  .ip__grid { grid-template-columns: 1fr; }
  .ip__acquisition-grid { grid-template-columns: 1fr 1fr; }

  /* Team */
  .team__grid { grid-template-columns: 1fr; max-width: 640px; }
  .team__card { flex-direction: row; align-items: flex-start; }

  /* Contact */
  .contact__inner { grid-template-columns: 1fr; gap: 40px; }
}

/* Mobile — up to 640px */
@media (max-width: 640px) {
  :root { --section-gap: 64px; }

  /* Hero */
  .hero__content { padding-top: 56px; padding-bottom: 56px; }
  .hero__title { font-size: 2.2rem; }
  .hero__subtitle { font-size: 1rem; }
  .hero__stats { gap: 16px; flex-wrap: wrap; }
  .stat__divider { display: none; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }

  /* Problem */
  .problem__grid { grid-template-columns: 1fr; }
  .problem__card--large,
  .problem__card--dark { grid-column: 1; }
  .problem__biometrics-grid { grid-template-columns: 1fr 1fr; }

  /* Technology */
  .tech__how { padding: 24px 16px; }
  .tech__innovations { grid-template-columns: 1fr; }
  .tech__signals-grid { grid-template-columns: 1fr; }
  .tech__table th,
  .tech__table td { padding: 10px 12px; font-size: 0.8rem; }

  /* IP */
  .ip__card { padding: 24px; }
  .ip__acquisition-grid { grid-template-columns: 1fr 1fr; }
  .ip__detail { flex-direction: column; gap: 2px; }
  .ip__detail dd { text-align: left; }

  /* Team */
  .team__grid { max-width: 100%; }
  .team__card { flex-direction: column; padding: 24px; gap: 16px; }

  /* Contact */
  .contact__form-wrap { padding: 24px; }
  .contact__content h2 { font-size: 1.6rem; }

  /* Section headers */
  .section__title { font-size: 1.7rem; }
  .section__lead { font-size: 1rem; }
}

/* Small mobile — up to 420px */
@media (max-width: 420px) {
  .hero__title { font-size: 1.9rem; }
  .problem__biometrics-grid { grid-template-columns: 1fr; }
  .ip__acquisition-grid { grid-template-columns: 1fr; }
  .tech__table-wrapper { font-size: 0.75rem; }
  .hero__badge { font-size: 0.7rem; }
}