/* ============================================================
   Clickstream Digital — Main Website Styles
   Palette: Ink (#0a0a0a), Lime (#C8FF4E), Paper (#f5f5f0)
   ============================================================ */

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

:root {
  --ink:           #0a0a0a;
  --ink-90:        #111;
  --ink-80:        #1a1a1a;
  --ink-70:        #222;
  --ink-60:        #2a2a2a;
  --lime:          #C8FF4E;
  --lime-hover:    #d6ff70;
  --lime-dim:      #a8d93a;
  --lime-glow:     rgba(200,255,78,0.15);
  --lime-glow-2:   rgba(200,255,78,0.06);
  --paper:         #f5f5f0;
  --paper-dim:     #c0c0b8;
  --gray:          #6B7280;
  --gray-light:    #9CA3AF;
  --white:         #fff;
  --font:          'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:          'JetBrains Mono', monospace;
  --max-w:         1160px;
  --nav-h:         68px;
  --radius-sm:     8px;
  --radius:        14px;
  --radius-lg:     20px;
  --ease-out:      cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out:   cubic-bezier(0.65, 0, 0.35, 1);
}

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 24px); }

body {
  font-family: var(--font);
  background: var(--ink);
  color: var(--paper);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: var(--lime); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--white); }

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

::selection { background: var(--lime); color: var(--ink); }

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

/* --- Typography --- */
.highlight { color: var(--lime); }

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(10,10,10,0.75);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: background 0.3s, box-shadow 0.3s;
}

.nav--scrolled {
  background: rgba(10,10,10,0.92);
  box-shadow: 0 1px 24px rgba(0,0,0,0.4);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo { flex-shrink: 0; line-height: 0; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav__link {
  color: var(--gray-light);
  font-size: 0.925rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.nav__link:hover { color: var(--white); background: rgba(255,255,255,0.05); }

.nav__link--cta {
  background: rgba(200,255,78,0.1);
  color: var(--lime);
  border: 1px solid rgba(200,255,78,0.2);
  padding: 8px 22px;
  font-weight: 600;
}

.nav__link--cta:hover {
  background: var(--lime);
  color: var(--ink);
  border-color: var(--lime);
}

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--paper);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-h);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 100% 70% at 30% 10%, rgba(200,255,78,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 80% 50% at 80% 30%, rgba(200,255,78,0.04) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 20% 80%, rgba(200,255,78,0.03) 0%, transparent 50%);
  animation: heroGlow 8s var(--ease-in-out) infinite alternate;
}

@keyframes heroGlow {
  0%   { opacity: 0.6; transform: scale(1); }
  50%  { opacity: 1;   transform: scale(1.02); }
  100% { opacity: 0.7; transform: scale(0.98); }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(200,255,78,0.015) 2px,
    rgba(200,255,78,0.015) 3px
  );
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 28px 100px;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__badge {
  display: inline-flex;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--lime);
  background: rgba(200,255,78,0.08);
  border: 1px solid rgba(200,255,78,0.2);
  padding: 6px 16px;
  border-radius: 99px;
  margin-bottom: 28px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero__title {
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  font-weight: 850;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--gray-light);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 36px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Hero Visual / Orb --- */
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.hero__orb {
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(200,255,78,0.12), transparent 70%);
  filter: blur(60px);
  animation: orbFloat 12s var(--ease-in-out) infinite alternate;
}

.hero__orb--2 {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle at 70% 70%, rgba(200,255,78,0.08), transparent 70%);
  animation: orbFloat2 10s var(--ease-in-out) infinite alternate;
  top: 10%;
  right: 10%;
}

.hero__orb--3 {
  width: 140px;
  height: 140px;
  background: radial-gradient(circle at 50% 50%, rgba(200,255,78,0.06), transparent 70%);
  animation: orbFloat3 8s var(--ease-in-out) infinite alternate;
  bottom: 15%;
  left: 5%;
}

@keyframes orbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, -20px) scale(1.1); }
}

@keyframes orbFloat2 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-20px, 30px) scale(1.15); }
}

@keyframes orbFloat3 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(20px, 20px) scale(1.2); }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 99px;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s var(--ease-out);
  text-align: center;
  white-space: nowrap;
}

.btn--lg { padding: 16px 36px; font-size: 1.05rem; }

.btn--primary {
  background: var(--lime);
  color: var(--ink);
  box-shadow: 0 4px 20px rgba(200,255,78,0.15);
}
.btn--primary:hover {
  background: var(--lime-hover);
  color: var(--ink);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(200,255,78,0.25);
}

.btn--outline {
  background: transparent;
  color: var(--paper-dim);
  border: 1.5px solid rgba(255,255,255,0.15);
}
.btn--outline:hover {
  border-color: var(--lime);
  color: var(--lime);
  transform: translateY(-3px);
  background: rgba(200,255,78,0.05);
}

/* ===== TRUST BAR ===== */
.trust-bar {
  padding: 56px 0;
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  background: rgba(255,255,255,0.015);
}

.trust-bar__label {
  text-align: center;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray);
  margin-bottom: 32px;
}

.trust-bar__items {
  display: flex;
  justify-content: center;
  gap: 64px;
  flex-wrap: wrap;
}

.trust-bar__stat {
  text-align: center;
}

.trust-bar__num {
  display: inline-block;
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--lime);
  letter-spacing: -0.03em;
  line-height: 1;
}

.trust-bar__suffix {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--lime);
  line-height: 1;
}

.trust-bar__desc {
  display: block;
  font-size: 0.9rem;
  color: var(--gray-light);
  margin-top: 6px;
}

/* ===== SECTIONS ===== */
.section {
  padding: 120px 0;
}

.section__header {
  max-width: 700px;
  margin-bottom: 64px;
}

.section__label {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--lime);
  margin-bottom: 16px;
  padding: 4px 0;
}

.section__label--light {
  color: var(--ink);
}

.section__title {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.section__desc {
  font-size: 1.1rem;
  color: var(--gray-light);
  max-width: 600px;
  line-height: 1.8;
}

/* ===== GRID ===== */
.grid {
  display: grid;
  gap: 24px;
}

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

/* ===== SERVICE CARDS ===== */
.services__grid {
  gap: 20px;
}

.card--featured {
  display: flex;
  gap: 24px;
  background: linear-gradient(135deg, var(--ink-90) 0%, var(--ink-80) 100%);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.4s var(--ease-out), border-color 0.4s, box-shadow 0.4s;
  position: relative;
  overflow: hidden;
}

.card--featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--lime), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.card--featured:hover {
  transform: translateY(-6px);
  border-color: rgba(200,255,78,0.15);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3), 0 0 0 1px rgba(200,255,78,0.05);
}

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

.card__icon-wrap {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(200,255,78,0.08);
  border-radius: var(--radius-sm);
  font-size: 1.6rem;
  transition: background 0.3s, transform 0.3s;
}

.card--featured:hover .card__icon-wrap {
  background: rgba(200,255,78,0.14);
  transform: scale(1.05);
}

.card__body { min-width: 0; }

.card__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.card__text {
  font-size: 0.95rem;
  color: var(--gray-light);
  line-height: 1.7;
}

/* ===== PROCESS ===== */
.process {
  background: linear-gradient(180deg, transparent, rgba(200,255,78,0.015), transparent);
}

.process__steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px 60px;
  position: relative;
}

.process__steps::before {
  content: '';
  position: absolute;
  top: 32px;
  bottom: 32px;
  left: 20px;
  width: 1px;
  background: linear-gradient(180deg, var(--lime), transparent);
  opacity: 0.2;
}

.process__step {
  display: flex;
  gap: 24px;
  position: relative;
  padding-left: 16px;
}

.process__step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--lime);
  background: rgba(200,255,78,0.08);
  border: 1px solid rgba(200,255,78,0.15);
  border-radius: 50%;
  transition: background 0.3s, border-color 0.3s;
}

.process__step:hover .process__step-num {
  background: rgba(200,255,78,0.15);
  border-color: var(--lime);
}

.process__step-content { min-width: 0; }

.process__step-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.process__step-text {
  font-size: 0.95rem;
  color: var(--gray-light);
  line-height: 1.7;
}

/* ===== CLIENT CARDS ===== */
.clients__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.client-card {
  background: linear-gradient(135deg, var(--ink-90) 0%, var(--ink-80) 100%);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.4s var(--ease-out), border-color 0.4s, box-shadow 0.4s;
  display: flex;
  flex-direction: column;
}

.client-card:hover {
  transform: translateY(-6px);
  border-color: rgba(200,255,78,0.15);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}

.client-card__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.client-card__logo {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
}

.client-card__name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.client-card__tag {
  font-size: 0.8rem;
  font-family: var(--mono);
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.client-card__text {
  font-size: 0.9rem;
  color: var(--gray-light);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 20px;
}

.client-card__outcome {
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.9rem;
  color: var(--paper-dim);
  line-height: 1.5;
}

.client-card__outcome-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--lime);
  margin-bottom: 6px;
}

/* ===== CTA BAND ===== */
.cta-band {
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 100% 60% at 50% 50%, rgba(200,255,78,0.08), transparent 70%);
}

.cta-band__inner {
  position: relative;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--lime) 0%, #b8f03a 100%);
  border-radius: var(--radius-lg);
  padding: 64px 40px;
  box-shadow: 0 24px 64px rgba(200,255,78,0.12);
}

.cta-band__title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.cta-band__text {
  font-size: 1.05rem;
  color: var(--ink-60);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-band__btn {
  background: var(--ink) !important;
  color: var(--white) !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2) !important;
}

.cta-band__btn:hover {
  background: var(--ink-80) !important;
  color: var(--lime) !important;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3) !important;
}

.cta-band__note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--ink-60);
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 64px 0 32px;
}

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

.footer__col--brand { max-width: 300px; }

.footer__tagline {
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.6;
}

.footer__heading {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-light);
  margin-bottom: 20px;
}

.footer__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__link {
  font-size: 0.9rem;
  color: var(--gray);
  transition: color 0.2s;
}

.footer__link:hover { color: var(--lime); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.04);
  padding-top: 24px;
  font-size: 0.85rem;
  color: var(--gray);
  text-align: center;
}

/* ===== ANIMATIONS / REVEAL ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger for cards and steps */
.services__grid [data-reveal]:nth-child(1) { transition-delay: 0.05s; }
.services__grid [data-reveal]:nth-child(2) { transition-delay: 0.1s; }
.services__grid [data-reveal]:nth-child(3) { transition-delay: 0.15s; }
.services__grid [data-reveal]:nth-child(4) { transition-delay: 0.2s; }

.process__step:nth-child(1) [data-reveal] { transition-delay: 0.05s; }
.process__step:nth-child(2) [data-reveal] { transition-delay: 0.1s; }
.process__step:nth-child(3) [data-reveal] { transition-delay: 0.15s; }
.process__step:nth-child(4) [data-reveal] { transition-delay: 0.2s; }

.clients__grid [data-reveal]:nth-child(1) { transition-delay: 0.05s; }
.clients__grid [data-reveal]:nth-child(2) { transition-delay: 0.1s; }
.clients__grid [data-reveal]:nth-child(3) { transition-delay: 0.15s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: 0; }
  .hero__visual { display: none; }
  .hero { min-height: 0; padding: 120px 0 80px; }

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

  .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--ink);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    padding: 12px 0;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.35s var(--ease-out), opacity 0.3s;
    pointer-events: none;
  }
  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__link {
    display: block;
    padding: 12px 28px;
    border-radius: 0;
  }
  .nav__link--cta {
    margin: 8px 28px;
    text-align: center;
  }
  .nav__toggle { display: flex; }

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

  .process__steps {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .process__steps::before { display: none; }
  .process__step { padding-left: 0; }

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

  .section { padding: 80px 0; }
  .section__header { margin-bottom: 44px; }

  .trust-bar__items { gap: 40px; }
  .trust-bar__num { font-size: 2.2rem; }
  .trust-bar__suffix { font-size: 2.2rem; }

  .cta-band__inner { padding: 48px 28px; border-radius: var(--radius); }

  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__col--brand { max-width: 100%; }
}

@media (max-width: 480px) {
  .container { padding: 0 20px; }

  .hero__inner { padding: 100px 20px 60px; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }

  .btn--lg { padding: 14px 28px; font-size: 1rem; }
}