/* ============================= */
/* RESET & BASE */
/* ============================= */

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  height: 100%;
  background: #000;
  color: #fff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  scroll-behavior: smooth;
}

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

/* ============================= */
/* SCROLL SNAP */
/* ============================= */

.scroll-container {
  height: 100vh;
  overflow-y: scroll;
  scroll-snap-type: y mandatory;
}

.snap-section {
  scroll-snap-align: start;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem;
  position: relative;
}

/* ============================= */
/* NAVBAR */
/* ============================= */

nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  z-index: 1000;

  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);

  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.2em;
  font-size: 0.9rem;
}

/* ============================= */
/* HERO */
/* ============================= */

.hero {
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  max-width: 900px;
  margin: 1.5rem auto;
  line-height: 1.2;
}

.hero p {
  max-width: 600px;
  margin: 0 auto;
  opacity: 0.7;
}

.badge {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.1);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

/* ============================= */
/* LIQUID SECTION */
/* ============================= */

.liquid-section {
  overflow: hidden;
}

.liquid-bg {
  position: absolute;
  inset: 0;
  z-index: 0;

  background: linear-gradient(
    130deg,
    #1a1a1a,
    #2b2b2b,
    #1c1c1c,
    #333333
  );

  background-size: 300% 300%;
  animation: liquidMove 22s ease infinite;
}

@keyframes liquidMove {
  0%   { background-position: 0% 50% }
  50%  { background-position: 100% 50% }
  100% { background-position: 0% 50% }
}

.kaizen-wrapper {
  position: relative;
  z-index: 2;

  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;

  max-width: 1200px;
  width: 100%;
}

.kaizen-right {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

/* ============================= */
/* CARDS */
/* ============================= */

.kaizen-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);

  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 22px;
  padding: 1.8rem;
}

.kaizen-card h2 {
  font-size: 2rem;
  margin: 1rem 0;
}

.kaizen-card h3 {
  margin-bottom: 1.5rem;
}

.muted {
  opacity: 0.65;
}

/* ============================= */
/* STEPS */
/* ============================= */

.steps {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.circle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #555;

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: 0.85rem;
}

.circle.active {
  background: #fff;
  color: #000;
}

/* ============================= */
/* METRICS */
/* ============================= */

.metric {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-top: 1rem;
}

.progress {
  height: 5px;
  background: #222;
  border-radius: 999px;
  margin: 0.4rem 0 1.4rem;
  overflow: hidden;
}

.progress span {
  display: block;
  height: 100%;
  background: #fff;
  border-radius: inherit;
}

/* ============================= */
/* KAIZEN CYCLE */
/* ============================= */

.cycle {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr;
  align-items: center;
  gap: 1.5rem;
}

.cycle-item {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #555;

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: 0.85rem;
}

.cycle-item.active {
  background: #fff;
  color: #000;
}

.cycle-bar {
  height: 4px;
  background: #222;
  border-radius: 999px;
}

.cycle-bar.active {
  background: #fff;
}

/* ============================= */
/* CONTACT CTA */
/* ============================= */

.contact-cta {
  background: #fff;
  color: #000;
  flex-direction: column;
  text-align: center;
}

.contact-cta h2 {
  font-size: 2rem;
}

.btn {
  margin-top: 2rem;
  padding: 0.9rem 2rem;
  border-radius: 999px;
  background: #000;
  color: #fff;
  font-weight: 600;
  transition: 0.3s ease;
}

.btn:hover {
  opacity: 0.8;
}

/* ============================= */
/* MOBILE */
/* ============================= */

@media (max-width: 900px) {

  .kaizen-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .kaizen-card {
    padding: 1.5rem;
  }

  .kaizen-card h2 {
    font-size: 1.6rem;
  }

  .kaizen-card h3 {
    font-size: 1.1rem;
  }

  .circle {
    width: 34px;
    height: 34px;
    font-size: 0.75rem;
  }

  .cycle {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem 1rem;
  }

  .cycle-bar {
    display: none;
  }

  .cycle-item {
    width: 68px;
    height: 68px;
    margin: 0 auto;
  }

  .progress {
    height: 4px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .contact-cta h2 {
    font-size: 1.6rem;
  }
}

/* ============================= */
/* CONTACT PAGE STYLING */
/* ============================= */

.contact-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem;
  background: radial-gradient(circle at 20% 20%, #1a1a1a, #000 70%);
}

.contact-card {
  width: 100%;
  max-width: 600px;
  padding: 2.5rem;
  border-radius: 24px;

  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);

  border: 1px solid rgba(255,255,255,0.12);
}

.contact-card h1 {
  margin-bottom: 0.5rem;
  font-size: 2rem;
}

.contact-card .subtitle {
  opacity: 0.65;
  margin-bottom: 2rem;
}

.contact-card form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.contact-card label {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  opacity: 0.7;
}

.contact-card select,
.contact-card textarea,
.contact-card input {
  padding: 0.9rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(0,0,0,0.4);
  color: #fff;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.contact-card select:focus,
.contact-card textarea:focus,
.contact-card input:focus {
  outline: none;
  border-color: #fff;
  background: rgba(0,0,0,0.6);
}

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

.contact-card .btn {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
}

.contact-card .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255,255,255,0.15);
}

/* HIDDEN FIELD SMOOTH REVEAL */
#otherField {
  transition: all 0.3s ease;
}

.hidden {
  display: none;
}

/* ============================= */
/* CONTACT MOBILE */
/* ============================= */

@media (max-width: 600px) {

  .contact-section {
    padding: 6rem 1.5rem;
  }

  .contact-card {
    padding: 1.8rem;
  }

  .contact-card h1 {
    font-size: 1.6rem;
  }

}