/* ========================================
   INTEGRAITE — Styles
   ======================================== */

:root {
  --primary: #2563EB;
  --primary-light: #60A5FA;
  --teal: #06B6D4;
  --pale-blue: #93C5FD;
  --dark: #0F172A;
  --dark-mid: #1E293B;
  --dark-card: #162032;
  --grey: #94A3B8;
  --off-white: #F8FAFC;
  --white: #FFFFFF;
  --gradient: linear-gradient(135deg, var(--primary), var(--teal));
  --gradient-h: linear-gradient(90deg, var(--primary), var(--teal));
  --font-heading: 'Sora', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --nav-height: 72px;
  --container-max: 1200px;
  --container-padding: 24px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Light theme variables */
  --light-bg: #FFFFFF;
  --light-bg-alt: #F8FAFC;
  --light-card: #FFFFFF;
  --text-dark: #0D1B3E;
  --text-body: #475569;
  --text-muted: #94A3B8;
  --border-light: #E2E8F0;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background-color: var(--light-bg);
  overflow-x: hidden;
  position: relative;
}

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

/* --- Background Ambient Orbs --- */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.bg-orb--1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.04), transparent 70%);
  top: -200px; left: -200px;
  animation: orbFloat1 20s ease-in-out infinite;
}

.bg-orb--2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.03), transparent 70%);
  top: 50%; right: -200px;
  animation: orbFloat2 25s ease-in-out infinite;
}

.bg-orb--3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.025), transparent 70%);
  bottom: 10%; left: 20%;
  animation: orbFloat3 30s ease-in-out infinite;
}

@keyframes orbFloat1 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(60px,40px)} }
@keyframes orbFloat2 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(-40px,-60px)} }
@keyframes orbFloat3 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(30px,-30px)} }

/* --- Dot Pattern Overlay --- */
.section__dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(148, 163, 184, 0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

/* --- Utility --- */
.container {
  width: 100%; max-width: var(--container-max);
  margin: 0 auto; padding: 0 var(--container-padding);
  position: relative; z-index: 1;
}

.text-gradient {
  background: var(--gradient-h);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section {
  padding: 120px 0;
  scroll-margin-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

section[id] { scroll-margin-top: var(--nav-height); }

.section__header { text-align: center; margin-bottom: 64px; }

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700; color: var(--text-dark);
  margin-bottom: 16px; line-height: 1.2;
}

.section__subtitle {
  font-size: 1.125rem; color: var(--text-body);
  max-width: 560px; margin: 0 auto;
}

/* Dark blue sections */
.section--blue { background: var(--dark); }
.section--blue .section__title { color: var(--white); }
.section--blue .section__subtitle { color: var(--grey); }
.section--blue .service-card,
.section--blue .case-card,
.section--blue .about-card { background: var(--dark-mid); border-color: rgba(255,255,255,0.08); }
.section--blue .service-card__title,
.section--blue .about-card h3 { color: var(--white); }
.section--blue .service-card__text,
.section--blue .about-card p,
.section--blue p { color: var(--grey); }
.section--blue .service-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.3); border-color: rgba(37,99,235,0.3); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-heading); font-weight: 600; font-size: 0.9375rem;
  padding: 12px 28px; border-radius: var(--radius-sm);
  transition: all var(--transition); white-space: nowrap;
  position: relative; overflow: hidden;
}

.btn--primary { background: var(--gradient); color: var(--white); border: none; }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(37,99,235,0.35); }

.btn--accent { background: var(--teal); color: var(--white); border: none; }
.btn--accent:hover { background: #0891b2; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(6,182,212,0.3); }

.btn--ghost { background: transparent; color: var(--text-dark); border: 1.5px solid var(--border-light); }
.btn--ghost:hover { border-color: var(--text-muted); background: rgba(15,23,42,0.03); transform: translateY(-2px); }

/* Ghost buttons inside dark sections (hero, footer) */
.hero .btn--ghost { color: var(--text-dark); border-color: rgba(13,27,62,0.25); }
.hero .btn--ghost:hover { border-color: rgba(13,27,62,0.5); background: rgba(13,27,62,0.05); }

.btn--lg { padding: 16px 36px; font-size: 1rem; }

/* --- Navigation --- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height); z-index: 1000;
  transition: all var(--transition);
}

.nav--scrolled {
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 1px 12px rgba(0,0,0,0.06);
}
@supports (backdrop-filter: blur(20px)) {
  .nav--scrolled {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
  }
}

.nav__container {
  max-width: var(--container-max); margin: 0 auto;
  padding: 0 var(--container-padding); height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}

.nav__logo { display: flex; align-items: center; gap: 10px; z-index: 1001; flex-shrink: 0; }
.nav__logo-img { height: 52px; width: auto; }

.nav__links { display: flex; align-items: center; gap: 28px; }

.nav__link {
  font-family: var(--font-heading); font-size: 0.875rem; font-weight: 500;
  color: var(--text-body); transition: color var(--transition); position: relative;
}

.nav__link::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--gradient-h);
  transition: width var(--transition); border-radius: 1px;
}

.nav__link:hover, .nav__link--active { color: var(--text-dark); }
.nav__link:hover::after, .nav__link--active::after { width: 100%; }

.nav__cta { padding: 10px 24px; font-size: 0.875rem; }

.nav__hamburger {
  display: none; flex-direction: column; justify-content: center;
  gap: 5px; width: 28px; height: 28px; z-index: 1001;
}

.nav__hamburger span {
  display: block; width: 100%; height: 2px;
  background: var(--text-dark); border-radius: 2px;
  transition: all var(--transition); transform-origin: center;
}

/* When nav is over the hero (not scrolled), make hamburger white */
.hero ~ .mobile-menu ~ .nav:not(.nav--scrolled) .nav__hamburger span,
body > .nav:not(.nav--scrolled) .nav__hamburger span {
  background: var(--text-dark);
}

.nav__hamburger--active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger--active span:nth-child(2) { opacity: 0; }
.nav__hamburger--active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed; inset: 0;
  background: rgba(15,23,42,0.99);
  z-index: 999; display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: all var(--transition-slow);
}
@supports (backdrop-filter: blur(20px)) {
  .mobile-menu {
    background: rgba(15,23,42,0.98);
    backdrop-filter: blur(20px);
  }
}

.mobile-menu--active { opacity: 1; visibility: visible; }

.mobile-menu__nav { display: flex; flex-direction: column; align-items: center; gap: 28px; }

.mobile-menu__link {
  font-family: var(--font-heading); font-size: 1.5rem; font-weight: 600;
  color: var(--off-white); transition: color var(--transition);
  transform: translateY(20px); opacity: 0;
}

.mobile-menu--active .mobile-menu__link { transform: translateY(0); opacity: 1; }
.mobile-menu--active .mobile-menu__link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu--active .mobile-menu__link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu--active .mobile-menu__link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu--active .mobile-menu__link:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu--active .mobile-menu__link:nth-child(5) { transition-delay: 0.3s; }
.mobile-menu--active .mobile-menu__link:nth-child(6) { transition-delay: 0.35s; }
.mobile-menu--active .mobile-menu__link:nth-child(7) { transition-delay: 0.4s; }
.mobile-menu__link:hover { color: var(--teal); }
.mobile-menu__cta { margin-top: 12px; font-size: 1.125rem; padding: 16px 40px; }

/* --- Hero --- */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 80px; overflow: hidden;
  background: #EAECF0;
}

.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg canvas { width: 100%; height: 100%; }

.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 40%, rgba(37,99,235,0.1) 0%, transparent 60%);
  z-index: 1;
}

.hero__inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; align-items: center;
}

.hero__content { max-width: 560px; }

.hero__heading {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800; color: var(--text-dark);
  line-height: 1.15; margin-bottom: 24px; letter-spacing: -0.02em;
}

.hero__subheading {
  font-size: clamp(1rem, 1.8vw, 1.125rem);
  color: var(--text-body); line-height: 1.7; margin-bottom: 36px;
}

.hero__ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }

.hero__trust {
  display: flex; align-items: center; justify-content: flex-start;
  gap: 0; flex-wrap: wrap;
}

.trust-item {
  font-family: var(--font-heading); font-size: 0.875rem;
  font-weight: 500; color: var(--grey);
  padding: 0 20px;
}

.trust-item:first-child { padding-left: 0; }
.trust-item:last-child { padding-right: 0; }

.trust-divider {
  width: 1px; height: 16px;
  background: rgba(148,163,184,0.3);
  flex-shrink: 0;
}

/* Hero Animated Visual */
.hero__visual {
  display: flex; align-items: center; justify-content: center;
}

.hero-diagram { width: 100%; max-width: 504px; min-width: 200px; height: auto; overflow: visible; }

.hero-node { animation: nodeFloat 6s ease-in-out infinite; }
.hero-node--1 { animation-delay: 0s; }
.hero-node--2 { animation-delay: 1s; }
.hero-node--3 { animation-delay: 2s; }
.hero-node--4 { animation-delay: 0.5s; }
.hero-node--5 { animation-delay: 1.5s; }
.hero-node--6 { animation-delay: 2.5s; }

@keyframes nodeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.hero-hub { animation: hubPulse 4s ease-in-out infinite; }
@keyframes hubPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

.hero-line { animation: lineGlow 3s ease-in-out infinite alternate; }
@keyframes lineGlow {
  0% { opacity: 0.15; }
  100% { opacity: 0.4; }
}

/* Pulse rings — use transform scale instead of r attribute for cross-browser compat */
.pulse-ring {
  transform-origin: 250px 250px;
  animation: pulseExpand 3s ease-out infinite;
}
.pulse-ring--1 { animation-delay: 0s; }
.pulse-ring--2 { animation-delay: 1.5s; }
@keyframes pulseExpand {
  0% { transform: scale(1); opacity: 0.4; }
  100% { transform: scale(1.8); opacity: 0; }
}

.hero__scroll-indicator {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%); z-index: 2;
}

.scroll-arrow {
  width: 24px; height: 24px;
  border-right: 2px solid var(--text-body); border-bottom: 2px solid var(--text-body);
  transform: rotate(45deg); animation: scrollBounce 2s ease-in-out infinite; opacity: 0.4;
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translate(0,0); opacity: 0.4; }
  50% { transform: rotate(45deg) translate(6px,6px); opacity: 0.8; }
}

/* --- Tech Strip --- */
.tech-strip {
  padding: 56px 0; background: var(--light-bg);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  position: relative;
}

.tech-strip__label {
  font-family: var(--font-heading); font-size: 0.8125rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--text-muted); text-align: center; margin-bottom: 32px; opacity: 0.7;
}

.tech-strip__marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, white 8%, white 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, white 8%, white 92%, transparent);
}

.tech-strip__track {
  display: flex; align-items: center; gap: 12px;
  width: max-content;
  animation: marquee 60s linear infinite;
}

.tech-strip__marquee:hover .tech-strip__track {
  animation-play-state: paused;
}

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

.tech-strip__item {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-heading); font-size: 0.8125rem; font-weight: 500;
  color: var(--text-body); white-space: nowrap;
  background: var(--light-bg-alt);
  border: 1px solid var(--border-light);
  border-radius: 100px; padding: 10px 20px;
  transition: border-color var(--transition);
  flex-shrink: 0;
}

.tech-strip__icon { width: 16px; height: 16px; flex-shrink: 0; opacity: 1; display: inline-block; }

.tech-strip__item:hover { border-color: rgba(37,99,235,0.3); color: var(--text-dark); }

/* --- Services --- */
.services {
  background: var(--light-bg-alt);
  position: relative; overflow: hidden;
}

.services__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.service-card {
  background: var(--light-card); border: 1px solid var(--border-light);
  border-radius: var(--radius-lg); padding: 40px 32px;
  transition: all var(--transition); position: relative; overflow: hidden;
}

.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--gradient-h); opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  border-color: rgba(37,99,235,0.2); transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.service-card:hover::before { opacity: 1; }

.service-card__icon { width: 48px; height: 48px; margin-bottom: 24px; }

.service-card__title {
  font-family: var(--font-heading); font-size: 1.25rem;
  font-weight: 700; color: var(--text-dark); margin-bottom: 12px;
}

.service-card__text { color: var(--text-body); font-size: 0.9375rem; line-height: 1.75; }

/* --- How It Works --- */
.how-it-works {
  background: var(--light-bg);
  position: relative; overflow: hidden;
}

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

.step-card {
  display: flex; align-items: flex-start; gap: 24px;
  background: var(--light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative; overflow: hidden;
  transition: all var(--transition);
}

.step-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--gradient); opacity: 0;
  transition: opacity var(--transition);
}

.step-card:hover {
  border-color: rgba(37,99,235,0.2);
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(0,0,0,0.06);
}

.step-card:hover::before { opacity: 1; }

.step-card__number {
  font-family: var(--font-heading); font-size: 2.5rem; font-weight: 800;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
  line-height: 1; flex-shrink: 0; opacity: 0.5;
}

.step-card__content { flex: 1; }

.step-card__title {
  font-family: var(--font-heading); font-size: 1.25rem;
  font-weight: 700; color: var(--text-dark); margin-bottom: 10px;
}

.step-card__text {
  color: var(--text-body); font-size: 0.9375rem; line-height: 1.75;
}

/* --- Qualification Statement --- */
.qualification {
  padding: 80px 0;
  background: var(--gradient);
  position: relative; overflow: hidden;
}

.qualification::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(255,255,255,0.08), transparent 70%);
}

.qualification__inner {
  max-width: 720px; margin: 0 auto; text-align: center;
  position: relative; padding: 48px 40px;
}

.qualification__inner::before {
  content: ''; position: absolute; top: 0; left: 50%;
  transform: translateX(-50%); width: 60px; height: 3px;
  background: rgba(255,255,255,0.4); border-radius: 2px;
}

.qualification__text {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.625rem);
  font-weight: 600; color: var(--white); line-height: 1.5;
}

/* --- Case Studies --- */
.case-studies { background: var(--light-bg-alt); position: relative; overflow: hidden; }

.case-studies__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.case-card {
  background: var(--light-card); border: 1px solid var(--border-light);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: all var(--transition); display: flex; flex-direction: column;
}

.case-card:hover {
  border-color: rgba(37,99,235,0.2); transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.case-card__header {
  padding: 24px 28px 20px;
  background: linear-gradient(135deg, rgba(37,99,235,0.06), rgba(6,182,212,0.04));
  border-bottom: 1px solid var(--border-light);
}

.case-card__header--alt {
  background: linear-gradient(135deg, rgba(37,99,235,0.04), rgba(6,182,212,0.02));
}

.case-card__body { padding: 24px 28px 28px; flex: 1; display: flex; flex-direction: column; }

.case-card__tag {
  display: inline-block; font-family: var(--font-heading);
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--teal);
  background: rgba(6,182,212,0.1); padding: 6px 14px;
  border-radius: 20px; width: fit-content;
}

.case-card__badge {
  display: inline-block; font-family: var(--font-heading);
  font-size: 0.75rem; font-weight: 600; color: var(--primary);
  background: rgba(37,99,235,0.1); padding: 6px 14px;
  border-radius: 20px; width: fit-content; margin-left: 8px;
}

.case-card__stats { display: flex; gap: 32px; margin-bottom: 20px; }

.case-card__stat { display: flex; flex-direction: column; }

.case-card__stat-number {
  font-family: var(--font-heading); font-size: 2.5rem; font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1.1;
}

.case-card__stat-label { font-size: 0.8125rem; color: var(--text-muted); margin-top: 4px; }

.case-card__title {
  font-family: var(--font-heading); font-size: 1.25rem;
  font-weight: 700; color: var(--text-dark); margin-bottom: 12px;
}

.case-card__text {
  color: var(--text-body); font-size: 0.9375rem; line-height: 1.75;
  margin-bottom: 20px; flex: 1;
}

.case-card__result {
  font-size: 0.875rem; color: var(--text-dark);
  padding-top: 16px; border-top: 1px solid var(--border-light);
}

.case-card__result-label { font-weight: 600; color: var(--teal); }

.case-card--coming-soon { border-style: dashed; border-color: var(--border-light); }

.case-card--placeholder {
  border-style: dashed; border-color: var(--border-light);
  display: flex; align-items: center; justify-content: center;
  min-height: 280px;
}

.case-card__placeholder-content {
  text-align: center; display: flex; flex-direction: column;
  align-items: center; gap: 20px; padding: 40px 28px;
}

.case-card__placeholder-icon { width: 48px; height: 48px; color: var(--text-muted); opacity: 0.4; }

.case-card__placeholder-content p {
  font-family: var(--font-heading); font-size: 1.125rem;
  font-weight: 600; color: var(--text-muted);
}

/* --- About --- */
.about {
  background: var(--light-bg);
  position: relative; overflow: hidden;
}

.about__mesh {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(37,99,235,0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(6,182,212,0.02) 0%, transparent 50%);
}

.about__intro {
  font-family: var(--font-heading); font-size: 1.25rem; font-weight: 500;
  color: var(--text-dark); line-height: 1.6; max-width: 600px; margin: 0 auto;
}

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

.about__copy p {
  color: var(--text-body); font-size: 1rem; line-height: 1.8; margin-bottom: 16px;
}

.about__copy p:last-child { margin-bottom: 0; }

.about__cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-top: 48px;
}

.about__block {
  background: var(--light-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.about__block::before {
  content: ''; position: absolute;
  left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--teal);
}

.about__block:hover {
  border-color: rgba(6,182,212,0.2);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.about__block-title {
  font-family: var(--font-heading); font-size: 1rem;
  font-weight: 700; color: var(--text-dark); margin-bottom: 10px;
}

.about__block-text {
  color: var(--text-body); font-size: 0.9375rem; line-height: 1.7;
}

/* --- Business Flow Network --- */
.flow-section {
  background: var(--light-bg-alt);
  position: relative; overflow: hidden;
}

.flow-network {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
}

.flow-network__svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Interactive flow nodes */
.flow-node--interactive {
  cursor: pointer;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.flow-node--interactive:hover,
.flow-node--interactive.flow-node--active {
  transform: scale(1.14);
}

.flow-node__circle {
  transition: stroke-width 0.35s ease, filter 0.35s ease;
}

.flow-node--interactive:hover .flow-node__circle,
.flow-node--interactive.flow-node--active .flow-node__circle {
  stroke-width: 3;
  filter: drop-shadow(0 0 12px rgba(6,182,212,0.4));
}

/* Description text — hidden by default, shown on hover */
.flow-node__desc {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.flow-node--interactive:hover .flow-node__desc,
.flow-node--interactive.flow-node--active .flow-node__desc {
  opacity: 1;
}

/* Subtitle — visible by default, hidden on hover */
.flow-node__subtitle {
  transition: opacity 0.3s ease;
}

.flow-node--interactive:hover .flow-node__subtitle,
.flow-node--interactive.flow-node--active .flow-node__subtitle {
  opacity: 0;
}

/* Mobile flow list — hidden on desktop */
.flow-mobile { display: none; }

.flow-mobile {
  position: relative;
  padding-left: 32px;
}

.flow-mobile__line {
  position: absolute;
  left: 8px; top: 0; bottom: 0;
  width: 2px;
  background: var(--gradient);
  opacity: 0.2;
  border-radius: 1px;
}

.flow-mobile__item {
  position: relative;
  padding: 0 0 32px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.flow-mobile__item:last-child { padding-bottom: 0; }

.flow-mobile__dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--gradient);
  flex-shrink: 0;
  margin-top: 4px;
  position: relative;
  left: -32px;
  margin-right: -16px;
  box-shadow: 0 0 12px rgba(37,99,235,0.3);
}

.flow-mobile__item--highlight .flow-mobile__dot {
  width: 20px; height: 20px;
  margin-top: 2px;
  box-shadow: 0 0 20px rgba(6,182,212,0.4);
}

.flow-mobile__content h3 {
  font-family: var(--font-heading);
  font-size: 1rem; font-weight: 700;
  color: var(--text-dark); margin-bottom: 4px;
}

.flow-mobile__item--highlight .flow-mobile__content h3 {
  background: var(--gradient-h);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.flow-mobile__content p {
  color: var(--text-body); font-size: 0.875rem; line-height: 1.6;
}

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

.contact__layout {
  display: grid; grid-template-columns: 1.4fr 0.6fr;
  gap: 48px; align-items: start;
}

.contact-form { display: flex; flex-direction: column; gap: 20px; }

.contact-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

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

.form-label {
  font-family: var(--font-heading); font-size: 0.875rem;
  font-weight: 500; color: var(--text-dark);
}

.required { color: var(--teal); }

.form-input {
  font-family: var(--font-body); font-size: 0.9375rem;
  color: var(--text-dark); background: var(--light-bg);
  border: 1.5px solid var(--border-light); border-radius: var(--radius-sm);
  padding: 14px 18px; transition: all var(--transition); outline: none;
}

.form-input::placeholder { color: var(--text-muted); }
.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form-input:invalid:not(:placeholder-shown) { border-color: #ef4444; }

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

.contact-form__submit { align-self: flex-start; min-width: 200px; }

.contact-form__submit .btn__loader {
  display: none; width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.3); border-top-color: var(--white);
  border-radius: 50%; animation: spin 0.6s linear infinite;
}

.contact-form__submit--loading .btn__text { opacity: 0; }
.contact-form__submit--loading .btn__loader { display: block; position: absolute; }

@keyframes spin { to { transform: rotate(360deg); } }

.contact-form__status { font-size: 0.9375rem; min-height: 24px; }
.contact-form__status--success { color: #22c55e; }
.contact-form__status--error { color: #ef4444; }
.contact-form__note { font-size: 0.8125rem; color: var(--text-muted); opacity: 0.7; }

.contact__info { padding-top: 8px; }

.contact__info-card {
  background: var(--light-bg); border: 1px solid var(--border-light);
  border-radius: var(--radius-lg); padding: 32px;
}

.contact__info-card h3 {
  font-family: var(--font-heading); font-size: 1.125rem;
  font-weight: 600; color: var(--text-dark); margin-bottom: 24px;
}

.contact__info-item {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 16px; color: var(--text-body); font-size: 0.9375rem;
}

.contact__info-item:last-child { margin-bottom: 0; }
.contact__info-item svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--teal); }
.contact__info-item a { color: var(--text-dark); transition: color var(--transition); }
.contact__info-item a:hover { color: var(--teal); }

/* --- Footer --- */
.footer {
  background: var(--dark); padding: 48px 0 32px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer__centered {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; gap: 20px;
}

.footer__centered .footer__contact {
  display: flex; gap: 24px; flex-wrap: wrap; justify-content: center;
}

.footer__centered .footer__contact a {
  font-size: 0.875rem; color: var(--grey); transition: color var(--transition);
}

.footer__centered .footer__contact a:hover { color: var(--off-white); }

.footer__copyright {
  font-size: 0.8125rem; color: var(--grey); margin-top: 8px;
}

.footer__logo {
  display: flex; align-items: center; gap: 10px;
}

.footer__logo-img { height: 48px; width: auto; }

.footer__contact {
  display: flex; gap: 20px; margin-top: 12px; flex-wrap: wrap;
}

.footer__contact a {
  font-size: 0.8125rem; color: var(--grey);
  transition: color var(--transition);
}

.footer__contact a:hover { color: var(--off-white); }

.footer__links { display: flex; gap: 28px; flex-wrap: wrap; }

.footer__links a {
  font-family: var(--font-heading); font-size: 0.875rem; font-weight: 500;
  color: var(--grey); transition: color var(--transition);
}

.footer__links a:hover { color: var(--off-white); }

.footer__bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.06);
}

.footer__bottom p { font-size: 0.8125rem; color: var(--grey); }
.footer__legal { display: flex; gap: 24px; }

.footer__legal a {
  font-size: 0.8125rem; color: var(--grey);
  transition: color var(--transition);
}

.footer__legal a:hover { color: var(--off-white); }

/* --- Reveal Animations --- */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}

.reveal--visible { opacity: 1; transform: translateY(0); }
.reveal--delay-1 { transition-delay: 0.15s; }
.reveal--delay-2 { transition-delay: 0.3s; }
.reveal--delay-3 { transition-delay: 0.45s; }

/* --- Responsive --- */
@media (max-width: 1200px) and (min-width: 1025px) {
  .nav__links { gap: 20px; }
  .nav__link { font-size: 0.8125rem; }
  .nav__cta { padding: 8px 18px; font-size: 0.8125rem; }
}

@media (max-width: 1024px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__hamburger { display: flex; }

  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__content { max-width: 680px; margin: 0 auto; }
  .hero__ctas { justify-content: center; }
  .hero__trust { justify-content: center; gap: 0; }
  .hero__visual { max-width: 380px; margin: 0 auto; }

  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .case-studies__grid { grid-template-columns: 1fr 1fr; }
  .case-card--placeholder { grid-column: 1 / -1; }

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

@media (max-width: 768px) {
  :root { --nav-height: 72px; --container-padding: 20px; }

  .section { padding: 80px 0; }
  .section__header { margin-bottom: 48px; }

  .hero { padding: 100px 0 60px; }
  .hero__ctas { flex-direction: column; align-items: center; }
  .hero__trust { flex-wrap: wrap; justify-content: center; gap: 12px; }
  .trust-item { padding: 0 12px; }
  .trust-divider { display: none; }
  .hero__visual { max-width: 300px; }

  .tech-strip { padding: 40px 0; }
  .tech-strip__label { margin-bottom: 24px; }
  .tech-strip__item { padding: 6px 14px; }

  .services__grid { grid-template-columns: 1fr; }
  .service-card { padding: 32px 24px; }

  .steps-grid { grid-template-columns: 1fr; }
  .step-card { padding: 28px 24px; }

  .qualification { padding: 60px 0; }
  .qualification__inner { padding: 40px 20px; }

  .case-studies__grid { grid-template-columns: 1fr; }
  .case-card__stats { gap: 24px; }

  .flow-network__svg { display: none; }
  .flow-mobile { display: block; }

  .contact-form__row { grid-template-columns: 1fr; }
  .contact-form__submit { width: 100%; }

  .footer__top { flex-direction: column; gap: 32px; }
  .footer__links { gap: 20px; }
  .footer__bottom { flex-direction: column; gap: 16px; text-align: center; }

  .bg-orb--1 { width: 300px; height: 300px; }
  .bg-orb--2 { width: 250px; height: 250px; }
  .bg-orb--3 { display: none; }
}

@media (max-width: 480px) {
  .hero__heading { font-size: 2rem; }
  .section__title { font-size: 1.75rem; }
  .btn--lg { padding: 14px 28px; font-size: 0.9375rem; }
  .tech-strip__item { padding: 8px 14px; font-size: 0.75rem; }
  .case-card__header { padding: 20px 20px 16px; }
  .case-card__body { padding: 20px; }
  .case-card__stat-number { font-size: 2rem; }
  .contact__info-card { padding: 24px; }
  .flow-mobile { padding-left: 28px; }
  .flow-mobile__content h3 { font-size: 0.9375rem; }
  .step-card { gap: 16px; padding: 24px 20px; }
  .step-card__number { font-size: 2rem; }
}

/* --- Focus & Selection --- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--teal); outline-offset: 2px;
}

::selection { background: rgba(37,99,235,0.2); color: var(--text-dark); }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--light-bg-alt); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }