/* ---------- Tokens ---------- */
:root {
  --bg: #ffffff;
  --bg-soft: #f8f9fa;
  --carbon: #111111;
  --carbon-soft: #55575c;
  --carbon-faint: #8a8d93;
  --border: #e7e8ea;

  --green: #2ee66f;
  --green-strong: #17d65a;
  --green-glow: rgba(46, 230, 111, 0.45);
  --green-bg: rgba(46, 230, 111, 0.1);

  --red-strong: #ff3b3b;
  --red-glow: rgba(255, 59, 59, 0.5);
  --red-bg: rgba(255, 59, 59, 0.1);

  --font-display: "Sora", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --container: 1160px;
  --radius: 14px;
  --radius-sm: 10px;

  --shadow-sm: 0 1px 2px rgba(17, 17, 17, 0.04);
  --shadow-md: 0 8px 24px rgba(17, 17, 17, 0.06);
  --shadow-lg: 0 20px 48px rgba(17, 17, 17, 0.08);

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

/* ---------- Reset ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--carbon);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

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

button { font: inherit; cursor: pointer; border: none; background: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--carbon);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

section { scroll-margin-top: 88px; }

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

/* ---------- Reusable ---------- */
.tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--carbon-soft);
  margin-bottom: 14px;
}

.pulse-dot {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-strong);
  box-shadow: 0 0 0 0 var(--green-glow);
  flex-shrink: 0;
}

.pulse-dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--green-strong);
  animation: pulse 2s var(--ease) infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.7; }
  70% { transform: scale(2.6); opacity: 0; }
  100% { transform: scale(2.6); opacity: 0; }
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--carbon-soft);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 11px 22px;
  border-radius: 999px;
  transition: transform 0.2s var(--ease), box-shadow 0.25s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--carbon);
  color: #fff;
  border: 1px solid var(--carbon);
}

.btn-primary:hover {
  box-shadow: 0 0 0 3px var(--green-bg), 0 8px 20px rgba(17, 17, 17, 0.18);
  border-color: var(--green-strong);
  transform: translateY(-1px);
}

.btn-primary:active { transform: translateY(0); }

.btn-primary:disabled {
  opacity: 0.7;
  cursor: default;
  transform: none;
}

.btn-ghost {
  background: transparent;
  color: var(--carbon);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--carbon);
  background: var(--bg-soft);
}

.btn-sm { padding: 8px 18px; font-size: 0.88rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; }

.icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--carbon-soft);
  border: 1px solid var(--border);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.icon-link svg { width: 18px; height: 18px; }

.icon-link:hover {
  color: var(--carbon);
  border-color: var(--green-strong);
  box-shadow: 0 0 0 3px var(--green-bg);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.4s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.logo { display: inline-flex; align-items: center; }

.logo-img {
  height: 26px;
  width: auto;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 36px;
  margin: 0 auto;
}

.nav-desktop a {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--carbon-soft);
  transition: color 0.2s var(--ease);
  position: relative;
}

.nav-desktop a:hover { color: var(--carbon); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--carbon);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
  margin: 0 auto;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.nav-mobile a:not(.btn) {
  padding: 12px 4px;
  font-weight: 500;
  color: var(--carbon-soft);
  border-bottom: 1px solid var(--border);
}

.nav-mobile .btn { margin-top: 12px; }

.site-header.menu-open .nav-mobile { display: flex; }

.site-header.menu-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
.site-header.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  padding: 108px 0 96px;
  background:
    radial-gradient(560px 280px at 85% 10%, rgba(46, 230, 111, 0.08), transparent 70%),
    var(--bg);
}

.hero-inner {
  max-width: 760px;
}

.hero-logo {
  display: flex;
  margin-bottom: 36px;
  opacity: 0;
  animation: logoIntro 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.1s forwards;
}

.hero-logo-img {
  height: 64px;
  width: auto;
}

@keyframes logoIntro {
  0% { opacity: 0; transform: translateY(18px) scale(0.92); }
  60% { opacity: 1; }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

.hero-inner > .reveal:nth-of-type(1) { transition-delay: 0.15s; }
.hero-inner > .reveal:nth-of-type(2) { transition-delay: 0.25s; }
.hero-inner > .reveal:nth-of-type(3) { transition-delay: 0.35s; }
.hero-inner > .reveal:nth-of-type(4) { transition-delay: 0.45s; }

@media (max-width: 480px) {
  .hero-logo-img { height: 46px; }
}

.stat-banner {
  display: flex;
  align-items: center;
  gap: 28px;
  background: var(--carbon);
  color: #fff;
  border-radius: var(--radius);
  padding: 22px 28px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-lg);
  max-width: 680px;
}

.stat-cluster {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.stat-cluster p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.35;
  margin: 0;
}

.stat-figure {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-display);
  font-weight: 700;
  flex-shrink: 0;
}

.stat-number { font-size: 1.9rem; }
.stat-percent { font-size: 1.1rem; margin-left: 1px; }

.stat-divider {
  width: 1px;
  align-self: stretch;
  background: rgba(255, 255, 255, 0.14);
  flex-shrink: 0;
}

.led-dot {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.led-dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  animation: pulse 1.7s var(--ease) infinite;
}

.led-red { background: var(--red-strong); box-shadow: 0 0 10px var(--red-glow); }
.led-red::after { background: var(--red-strong); }

.led-green { background: var(--green-strong); box-shadow: 0 0 10px var(--green-glow); }
.led-green::after { background: var(--green-strong); }

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  margin-bottom: 24px;
}

.hero .lead {
  font-size: 1.15rem;
  color: var(--carbon-soft);
  max-width: 560px;
  margin-bottom: 40px;
}

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

/* ---------- Section head ---------- */
.section-head {
  max-width: 560px;
  margin-bottom: 56px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 14px;
}

.section-head p {
  color: var(--carbon-soft);
  font-size: 1.05rem;
}

/* ---------- Services ---------- */
.services { padding: 88px 0; }

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

.card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.card:hover {
  border-color: var(--green-strong);
  box-shadow: 0 0 0 1px var(--green-bg), var(--shadow-md);
  transform: translateY(-3px);
}

.card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--carbon);
  margin-bottom: 22px;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.card-icon svg { width: 22px; height: 22px; }

.card:hover .card-icon {
  color: var(--green-strong);
  border-color: var(--green-strong);
  transform: translateY(-3px) rotate(-6deg);
}

.card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.card p {
  color: var(--carbon-soft);
  font-size: 0.96rem;
}

/* ---------- Marquee ---------- */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 16px 0;
}

.marquee-track {
  display: flex;
  align-items: center;
  width: max-content;
  gap: 16px;
  white-space: nowrap;
  animation: marquee 26s linear infinite;
}

.marquee-track span:not(.dot) {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--carbon-soft);
}

.marquee-track .dot {
  font-size: 0.45rem;
  color: var(--green-strong);
}

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

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

/* ---------- Process ---------- */
.process { padding: 88px 0; }

.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 8px;
}

.process-step { position: relative; }

.process-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 22px;
  left: 100%;
  width: 40px;
  height: 2px;
  background: var(--border);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.8s var(--ease) 0.3s;
}

.process-steps.is-visible .process-step:not(:last-child)::after {
  transform: scaleX(1);
}

.process-number {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.3rem;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--carbon);
  margin-bottom: 14px;
}

.process-step h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.process-step p {
  color: var(--carbon-soft);
  font-size: 0.94rem;
}

@media (max-width: 900px) {
  .process-steps { grid-template-columns: 1fr; gap: 32px; }
  .process-step:not(:last-child)::after { display: none; }
}

/* ---------- Why ---------- */
.why { padding: 88px 0; background: var(--bg-soft); }

.why-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.why-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.3rem);
  font-weight: 700;
  margin-bottom: 18px;
}

.why-text p {
  color: var(--carbon-soft);
  font-size: 1.03rem;
}

.why-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

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

.check-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--green-bg);
  color: var(--green-strong);
  margin-top: 2px;
}

.check-icon svg { width: 14px; height: 14px; }

.why-list h4 {
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.why-list p {
  color: var(--carbon-soft);
  font-size: 0.94rem;
}

/* ---------- Contact ---------- */
.contact { padding: 96px 0; }

.contact-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.contact-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.3rem);
  font-weight: 700;
  margin-bottom: 14px;
}

.contact-text p {
  color: var(--carbon-soft);
  font-size: 1.03rem;
  margin-bottom: 28px;
}

.contact-detail {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--carbon-soft);
}

.contact-form-wrap {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  position: relative;
  min-height: 424px;
}

.form-row { margin-bottom: 20px; }

.form-row label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.form-row .optional {
  font-weight: 400;
  color: var(--carbon-faint);
}

.form-row input,
.form-row textarea {
  width: 100%;
  font: inherit;
  color: var(--carbon);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  resize: vertical;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--green-strong);
  box-shadow: 0 0 0 3px var(--green-bg);
}

.form-row input:invalid:not(:placeholder-shown),
.form-row textarea:invalid:not(:placeholder-shown) {
  border-color: #e05a5a;
}

.form-error-msg {
  margin-top: 14px;
  font-size: 0.86rem;
  color: var(--red-strong);
  text-align: center;
}

.form-error-msg a {
  text-decoration: underline;
}

.form-privacy-note {
  margin-top: 16px;
  font-size: 0.78rem;
  color: var(--carbon-faint);
  text-align: center;
}

.btn .spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  animation: spin 0.7s linear infinite;
}

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

.form-success[hidden] {
  display: none;
}

.form-success {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 36px;
  background: var(--bg-soft);
  border-radius: var(--radius);
  animation: fade-in 0.4s var(--ease);
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--green-bg);
  color: var(--green-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 0 0 6px rgba(46, 230, 111, 0.08);
}

.success-icon svg { width: 26px; height: 26px; }

.form-success h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-success p {
  color: var(--carbon-soft);
  font-size: 0.96rem;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: space-between;
  padding: 56px 24px;
}

.footer-logo { height: 20px; margin-bottom: 14px; }

.footer-brand p {
  color: var(--carbon-soft);
  font-size: 0.92rem;
  max-width: 260px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  color: var(--carbon-soft);
  font-size: 0.92rem;
  transition: color 0.2s var(--ease);
}

.footer-nav a:hover { color: var(--carbon); }

.footer-contact {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.footer-contact a {
  font-size: 0.92rem;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.footer-contact a:hover {
  color: var(--green-strong);
  border-color: var(--green-strong);
}

.footer-instagram {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-instagram svg {
  width: 15px;
  height: 15px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
}

.footer-bottom .container {
  padding: 20px 24px;
  font-size: 0.82rem;
  color: var(--carbon-faint);
}

/* ---------- Mobile floating CTA ---------- */
.mobile-cta {
  display: none;
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom));
  z-index: 90;
  background: var(--carbon);
  color: #fff;
  text-align: center;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 15px 20px;
  border-radius: 999px;
  box-shadow: var(--shadow-lg);
  transform: translateY(140%);
  transition: transform 0.35s var(--ease);
}

.mobile-cta.is-visible {
  transform: translateY(0);
}

@media (max-width: 760px) {
  .mobile-cta { display: block; }
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .why-inner,
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

@media (max-width: 760px) {
  .nav-desktop { display: none; }
  .status-badge { display: none; }
  .menu-toggle { display: flex; }
  .header-actions { gap: 8px; }

  .hero { padding: 76px 0 64px; }

  .footer-inner { padding: 48px 24px; }

  .site-header { transform: translateY(-100%); }
  .site-header.header-visible { transform: translateY(0); }
}

@media (max-width: 640px) {
  .stat-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .stat-divider {
    width: 100%;
    height: 1px;
  }
}

@media (max-width: 480px) {
  .hero-actions .btn { width: 100%; }
  .hero-actions { flex-direction: column; }
  .contact-form-wrap { padding: 24px; }
}