/* ============================================
   Parteo Therapeutics - Brand Stylesheet
   "Breathe in Breakthroughs"
   ============================================ */

/* --- CSS Variables / Brand Tokens --- */
:root {
  /* Primary palette (from corporate deck) */
  --navy: #00355F;
  --teal: #007581;
  --orange: #E57BDB;
  --blue: #007DB8;
  --plum: #5F1358;

  /* Extended web palette */
  --navy-dark: #001F3A;
  --navy-light: #0A4A7A;
  --teal-light: #009BA8;
  --teal-pale: #E0F5F7;
  --orange-light: #EDA0E8;
  --orange-pale: #FCF0FB;
  --sky: #EAF6FB;
  --sky-deep: #C5E4F2;

  /* Neutrals */
  --white: #FFFFFF;
  --gray-50: #F8FAFB;
  --gray-100: #F0F3F5;
  --gray-200: #DDE3E8;
  --gray-300: #B8C1CA;
  --gray-400: #8A95A0;
  --gray-500: #53585B;
  --gray-700: #2D3339;
  --gray-900: #1A1F24;

  /* Semantic */
  --text-primary: #1A2332;
  --text-secondary: #53585B;
  --text-light: #8A95A0;
  --text-on-dark: #FFFFFF;
  --text-on-dark-muted: rgba(255,255,255,0.75);

  /* Typography */
  --font-heading: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;

  /* Transitions */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--blue);
  text-decoration: none;
  transition: color 0.3s var(--ease-smooth);
}

a:hover {
  color: var(--teal);
}

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy);
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
}

h4 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.lead {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.overline {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.75rem;
  display: block;
}

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

.container--narrow {
  max-width: 800px;
}

.section {
  padding: var(--section-padding);
}

.section--gray {
  background: var(--gray-50);
}

.section--sky {
  background: var(--sky);
}

.section--navy {
  background: var(--navy);
  color: var(--text-on-dark);
}

.section--navy h2,
.section--navy h3,
.section--navy h4 {
  color: var(--white);
}

.section--navy p {
  color: var(--text-on-dark-muted);
}

.section--navy .overline {
  color: var(--teal-light);
}

.section--teal {
  background: linear-gradient(135deg, var(--teal) 0%, var(--navy) 100%);
  color: var(--text-on-dark);
}

.section--teal h2,
.section--teal h3 {
  color: var(--white);
}

.section--teal p {
  color: var(--text-on-dark-muted);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.grid {
  display: grid;
  gap: 32px;
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: all 0.3s var(--ease-smooth);
}

.nav--scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--gray-200);
  box-shadow: 0 1px 12px rgba(0, 53, 95, 0.06);
}


.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--navy);
  text-decoration: none;
}

.nav__logo-icon {
  width: 38px;
  height: 38px;
}

.nav__logo-text span {
  color: var(--teal);
}

.nav__logo-img {
  width: auto;
  display: block;
}

.nav__logo-img--white {
  height: 46px !important;
}

/* Logo swap: white logo by default, color logo when scrolled */
.nav__logo-img--color {
  display: none;
}

.nav--scrolled .nav__logo-img--white {
  display: none;
}

.nav--scrolled .nav__logo-img--color {
  display: block;
  height: 46px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: color 0.3s var(--ease-smooth);
  position: relative;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--white);
}

.nav--scrolled .nav__links a {
  color: var(--text-secondary);
}

.nav--scrolled .nav__links a:hover,
.nav--scrolled .nav__links a.active {
  color: var(--navy);
}

.nav__links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--teal);
  border-radius: 1px;
}

.nav__cta {
  background: rgba(255, 255, 255, 0.15);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 0.3s var(--ease-smooth) !important;
}

.nav__cta:hover {
  background: rgba(255, 255, 255, 0.25) !important;
  color: var(--white) !important;
  transform: translateY(-1px);
}

.nav--scrolled .nav__cta {
  background: var(--navy);
  border-color: var(--navy);
}

.nav--scrolled .nav__cta:hover {
  background: var(--teal) !important;
  border-color: var(--teal) !important;
}

.nav__mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav__mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: all 0.3s var(--ease-smooth);
}

.nav--scrolled .nav__mobile-toggle span {
  background: var(--navy);
}

/* --- Parallax Support --- */
.parallax-section {
  position: relative;
  overflow: hidden;
}

.parallax-bg {
  position: absolute;
  inset: -20% 0;
  z-index: 0;
  will-change: transform;
}

.parallax-section > *:not(.parallax-bg):not(.hero__wave-container) {
  position: relative;
  z-index: 2;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0a1e3d 0%, #0e2d52 25%, #144980 55%, #1a5f90 80%, #0070C0 100%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 50% at 60% 70%, rgba(0, 112, 192, 0.3) 0%, transparent 70%),
    radial-gradient(ellipse 70% 60% at 30% 30%, rgba(20, 73, 128, 0.4) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(0, 112, 192, 0.2) 0%, transparent 50%);
  z-index: 1;
}

/* --- Breath Particle Canvas --- */
.hero__breath-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* --- Parallax Page Headers --- */
.page-header {
  background-attachment: fixed;
  background-size: cover;
}

@supports (-webkit-overflow-scrolling: touch) {
  .page-header {
    background-attachment: scroll;
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 120px 24px 80px;
}

.hero__overline {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal-light);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s 0.3s var(--ease-smooth) forwards;
}

.hero__title {
  font-size: clamp(3.5rem, 10vw, 7rem);
  color: var(--white);
  line-height: 1.05;
  max-width: 900px;
  margin-bottom: 32px;
  letter-spacing: -0.02em;
  font-weight: 800;
  opacity: 0;
  animation: fadeUp 0.8s 0.5s var(--ease-smooth) forwards;
}

.hero__title em {
  font-style: normal;
  color: var(--teal-light);
  display: block;
}

.hero__subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-on-dark-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp 0.8s 0.7s var(--ease-smooth) forwards;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.9s var(--ease-smooth) forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.3s var(--ease-smooth);
  text-decoration: none;
}

.btn--primary {
  background: var(--orange);
  color: var(--white);
}

.btn--primary:hover {
  background: var(--orange-light);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(229, 123, 219, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.35);
}

.btn--outline:hover {
  border-color: var(--white);
  color: var(--white);
  background: rgba(255,255,255,0.08);
}

.btn--navy {
  background: var(--navy);
  color: var(--white);
}

.btn--navy:hover {
  background: var(--navy-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 53, 95, 0.3);
}

.btn--teal {
  background: var(--teal);
  color: var(--white);
}

.btn--teal:hover {
  background: var(--teal-light);
  color: var(--white);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--gray-200);
}

.btn--ghost:hover {
  border-color: var(--navy);
  background: var(--gray-50);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 0.85rem;
}

.btn__arrow {
  transition: transform 0.3s var(--ease-smooth);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

/* --- Stats Bar --- */
.stats-bar {
  background: var(--white);
  border-radius: 12px;
  padding: 32px 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  align-items: center;
  box-shadow: 0 4px 32px rgba(0, 53, 95, 0.08);
  margin-top: -60px;
  position: relative;
  z-index: 10;
}

.stat {
  text-align: center;
}

.stat__number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 6px;
}

.stat__number span {
  color: var(--teal);
}

.stat__label {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.4;
}

/* --- Cards --- */
.card {
  background: var(--white);
  border-radius: 12px;
  padding: 36px;
  border: 1px solid var(--gray-200);
  transition: all 0.3s var(--ease-smooth);
}

.card:hover {
  border-color: var(--teal);
  box-shadow: 0 8px 32px rgba(0, 117, 129, 0.08);
  transform: translateY(-4px);
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.card__icon--teal {
  background: var(--teal-pale);
  color: var(--teal);
}

.card__icon--navy {
  background: rgba(0, 53, 95, 0.08);
  color: var(--navy);
}

.card__icon--orange {
  background: var(--orange-pale);
  color: var(--orange);
}

.card__icon--blue {
  background: rgba(0, 125, 184, 0.08);
  color: var(--blue);
}

.card h3 {
  margin-bottom: 12px;
}

.card p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* --- Feature Block (text + visual split) --- */
.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.feature--reverse {
  direction: rtl;
}

.feature--reverse > * {
  direction: ltr;
}

.feature__content {
  max-width: 520px;
}

.feature__visual {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--sky) 0%, var(--teal-pale) 100%);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Pipeline --- */
.pipeline-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0, 53, 95, 0.06);
}

.pipeline-table thead {
  background: var(--navy);
}

.pipeline-table th {
  color: var(--white);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 16px 20px;
  text-align: left;
}

.pipeline-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.95rem;
  vertical-align: middle;
}

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

.pipeline-table tbody tr:hover {
  background: var(--sky);
}

.pipeline-bar {
  height: 10px;
  border-radius: 5px;
  background: var(--gray-200);
  position: relative;
  overflow: hidden;
  min-width: 200px;
}

.pipeline-bar__fill {
  height: 100%;
  border-radius: 5px;
  transition: width 1s var(--ease-smooth);
}

.pipeline-bar__fill--discovery {
  width: 20%;
  background: linear-gradient(90deg, var(--teal), var(--teal-light));
}

.pipeline-bar__fill--preclinical {
  width: 45%;
  background: linear-gradient(90deg, var(--teal), var(--blue));
}

.pipeline-bar__fill--phase1 {
  width: 65%;
  background: linear-gradient(90deg, var(--blue), var(--navy));
}

@keyframes pulse-phase {
  0%, 100% { opacity: 0.85; box-shadow: 0 2px 8px rgba(229, 123, 219, 0.2); }
  50% { opacity: 1; box-shadow: 0 2px 16px rgba(229, 123, 219, 0.4); }
}

.pipeline-phase-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 0.7rem;
  color: var(--text-light);
}

/* --- Team --- */
.team-card {
  text-align: center;
  padding: 40px 24px;
}

.team-card__photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--sky-deep) 0%, var(--teal-pale) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--navy);
  border: 3px solid var(--white);
  box-shadow: 0 4px 20px rgba(0, 53, 95, 0.1);
  object-fit: cover;
}

.team-card__name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.team-card__title {
  font-size: 0.9rem;
  color: var(--teal);
  font-weight: 500;
  margin-bottom: 12px;
}

.team-card__bio {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Approach Diagram --- */
.approach-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 40px 0;
  flex-wrap: wrap;
}

.approach-step {
  text-align: center;
  padding: 24px;
  flex: 1;
  min-width: 180px;
}

.approach-step__circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--white);
}

.approach-step__circle--1 { background: var(--navy); }
.approach-step__circle--2 { background: var(--blue); }
.approach-step__circle--3 { background: var(--teal); }
.approach-step__circle--4 { background: var(--orange); }

.approach-step h4 {
  color: var(--navy);
  margin-bottom: 8px;
}

.approach-step p {
  font-size: 0.85rem;
}

.approach-arrow {
  font-size: 1.5rem;
  color: var(--gray-300);
  flex-shrink: 0;
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: 80px 24px;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--text-on-dark-muted);
  max-width: 500px;
  margin: 0 auto 32px;
}

/* --- Contact Form --- */
.contact-form {
  max-width: 560px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: all 0.3s var(--ease-smooth);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0, 117, 129, 0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* --- Footer --- */
.footer {
  background: var(--navy-dark);
  color: var(--text-on-dark-muted);
  padding: 60px 0 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand p {
  font-size: 0.9rem;
  color: var(--text-on-dark-muted);
  margin-top: 16px;
  max-width: 300px;
}

.footer h4 {
  color: var(--white);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: 10px;
}

.footer__links a {
  color: var(--text-on-dark-muted);
  font-size: 0.9rem;
  transition: color 0.3s var(--ease-smooth);
}

.footer__links a:hover {
  color: var(--teal-light);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: all 0.7s var(--ease-smooth);
}

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

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

/* --- SVG Logo Inline --- */
.logo-svg {
  width: 40px;
  height: 40px;
}

/* --- Highlight List --- */
.highlight-list {
  list-style: none;
  padding: 0;
}

.highlight-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 14px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.highlight-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--teal);
}

.highlight-list--orange li::before {
  background: var(--orange);
}

/* --- Breadcrumb --- */
.breadcrumb {
  padding: 100px 0 20px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.breadcrumb a {
  color: var(--text-light);
}

.breadcrumb a:hover {
  color: var(--navy);
}

.breadcrumb span {
  margin: 0 8px;
}

/* --- Page Header --- */
.page-header {
  background: linear-gradient(135deg, #0a1e3d 0%, #0e2d52 25%, #144980 55%, #1a5f90 80%, #0070C0 100%);
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 80% 50%, rgba(0, 112, 192, 0.2) 0%, transparent 70%);
  z-index: 1;
}

/* Wave strips reused inside page headers */
.page-header .hero__wave-strip {
  height: 100%;
}

.page-header::after {
  display: none;
}

.page-header__content {
  position: relative;
  z-index: 2;
}

.page-header h1 {
  color: var(--white);
  margin-bottom: 16px;
}

.page-header .lead {
  color: var(--text-on-dark-muted);
  max-width: 600px;
}

/* --- Content Sections for Inner Pages --- */
.content-block {
  padding: 60px 0;
}

.content-block + .content-block {
  border-top: 1px solid var(--gray-200);
}

.content-block h2 {
  margin-bottom: 24px;
}

.content-block h3 {
  margin-bottom: 16px;
  margin-top: 32px;
}

.content-block p + p {
  margin-top: 0;
}

/* --- Diagram Placeholder --- */
.diagram-placeholder {
  background: linear-gradient(135deg, var(--sky) 0%, var(--teal-pale) 100%);
  border-radius: 12px;
  padding: 48px;
  text-align: center;
  border: 2px dashed var(--gray-300);
  margin: 32px 0;
}

.diagram-placeholder p {
  color: var(--text-light);
  font-style: italic;
}

/* --- Info Box --- */
.info-box {
  background: var(--sky);
  border-left: 4px solid var(--teal);
  border-radius: 0 8px 8px 0;
  padding: 24px 28px;
  margin: 24px 0;
}

.info-box h4 {
  color: var(--navy);
  margin-bottom: 8px;
}

.info-box p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .feature { gap: 48px; }
  .stats-bar { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 64px 0;
  }

  .nav__links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 0;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }

  .nav__links.active {
    display: flex;
  }

  .nav__links li {
    width: 100%;
  }

  .nav__links a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
  }

  .nav__mobile-toggle {
    display: block;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .feature {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .feature--reverse {
    direction: ltr;
  }

  .stats-bar {
    grid-template-columns: 1fr;
    padding: 24px;
    gap: 16px;
    margin-top: -40px;
  }

  .stat__number {
    font-size: 1.8rem;
  }

  .hero__content {
    padding: 100px 24px 60px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .pipeline-table {
    display: block;
    overflow-x: auto;
  }

  .approach-diagram {
    flex-direction: column;
  }

  .approach-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 480px) {
  .stats-bar {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-direction: column;
  }

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