/* ============================================
   EACUS - LP (Landing Page) Styles
   Used by: lp.html
   ============================================ */

/* Prevent horizontal scroll on LP */
body { overflow-x: hidden; }

/* Constraint for LP sections */
.lp-hero-content,
.lp-modelroom,
.lp-features,
.lp-info,
.lp-voice,
.lp-works,
.lp-process,
.lp-form,
.lp-footer {
  max-width: var(--content-width);
  margin-left: auto;
  margin-right: auto;
}

/* --- Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

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

/* --- Hero Slider --- */
.lp-hero {
  height: 85vh;
  width: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  overflow: hidden;
}

.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.5s ease;
}

.hero-slide.active { opacity: 1; }

.hero-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.65);
}

.lp-hero-content {
  text-align: center;
  padding: 0 20px;
  z-index: 10;
}

.lp-hero-logo {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.3em;
  margin-bottom: 20px;
  font-weight: 700;
}

.lp-hero-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 10vw, 64px);
  font-weight: 300;
  letter-spacing: 0.15em;
  line-height: 1.1;
  margin-bottom: 15px;
}

.lp-hero-subtitle {
  font-size: 14px;
  letter-spacing: 0.1em;
  font-weight: 400;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  padding-top: 15px;
  display: inline-block;
}

/* --- Model Room Section --- */
.lp-modelroom {
  padding: 80px 20px;
  background: var(--color-white);
  text-align: center;
}

.modelroom-tag {
  background: var(--color-black);
  color: var(--color-white);
  display: inline-block;
  padding: 5px 20px;
  font-size: 11px;
  letter-spacing: 0.2em;
  margin-bottom: 20px;
  font-weight: 600;
}

.modelroom-title {
  font-size: 24px;
  letter-spacing: 0.05em;
  font-weight: 700;
  margin-bottom: 30px;
  line-height: 1.4;
}

.modelroom-main-img {
  width: 100%;
  margin-bottom: 30px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.modelroom-desc {
  max-width: 600px;
  margin: 0 auto 50px;
  font-size: 15px;
  text-align: left;
  color: var(--color-gray-700);
}

.modelroom-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin-bottom: 40px;
}

.modelroom-gallery img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* --- LP Section Titles --- */
.lp-section-title {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 0.2em;
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
  text-transform: uppercase;
}

.lp-section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 1px;
  background: var(--color-black);
}

.lp-section-sub {
  font-size: 13px;
  color: var(--color-gray-500);
  letter-spacing: 0.15em;
  margin-top: 20px;
  margin-bottom: 50px;
  display: block;
  text-align: center;
}

/* --- Features Section --- */
.lp-features {
  background: var(--color-gray-100);
  padding: 80px 20px;
  text-align: center;
}

.lp-feature-card {
  background: var(--color-white);
  padding: 40px 30px;
  margin-bottom: 25px;
  text-align: left;
  border: 1px solid var(--color-gray-200);
}

.feature-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 300;
  color: var(--color-gray-300);
  margin-bottom: 10px;
  display: block;
}

.feature-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 15px;
  letter-spacing: 0.05em;
}

.feature-desc {
  font-size: 14px;
  color: var(--color-gray-700);
}

@media (min-width: 768px) {
  .lp-feature-card {
    max-width: 800px;
    margin: 0 auto 30px;
  }
}

/* --- Gallery Section --- */
.lp-gallery {
  padding: 80px 10px;
  background: var(--color-white);
  text-align: center;
}

.lp-works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  max-width: var(--content-width);
  margin: 0 auto;
}

.lp-work-item {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.lp-work-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.lp-work-item:hover img { transform: scale(1.08); }

/* --- Form Section --- */
.lp-form-section {
  padding: 80px 20px;
  background: var(--color-white);
}

.form-title {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.form-subtitle {
  text-align: center;
  font-size: 13px;
  color: var(--color-gray-500);
  margin-bottom: 40px;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-row { margin-bottom: 25px; }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-label .required {
  color: var(--color-accent);
  margin-left: 5px;
  font-size: 11px;
}

.form-input input,
.form-input select,
.form-input textarea {
  width: 100%;
  border: 1px solid var(--color-gray-300);
  padding: 14px;
  font-size: 15px;
  font-family: var(--font-body);
  outline: none;
  background: var(--color-white);
}

.form-submit {
  text-align: center;
  margin-top: 40px;
}

.form-submit button {
  background: var(--color-black);
  color: var(--color-white);
  border: none;
  padding: 20px 60px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.2em;
  cursor: pointer;
  width: 100%;
  max-width: 300px;
}

/* --- Sticky CTA --- */
.sticky-cta {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 400px;
  background: var(--color-black);
  color: var(--color-white);
  padding: 18px;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.2em;
  z-index: 1000;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  text-decoration: none;
  font-size: 13px;
}

/* --- LP Footer --- */
.lp-footer {
  padding: 40px 20px 120px;
  text-align: center;
  font-size: 10px;
  color: var(--color-gray-700);
  letter-spacing: 0.1em;
  border-top: 1px solid var(--color-gray-200);
}

/* --- Process Section --- */
.lp-process {
  padding: 80px 20px;
  background: var(--color-white);
}

.lp-process-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.process-steps {
  text-align: left;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  left: 22px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--color-gray-200);
}

.process-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 40px;
  position: relative;
}

.step-num {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-white);
  background: var(--color-black);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.step-body { padding-top: 8px; }

.step-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.step-desc {
  font-size: 14px;
  color: var(--color-gray-700);
  line-height: 1.9;
}

/* --- FAQ Section --- */
.lp-faq {
  padding: 80px 20px;
  background: var(--color-gray-100);
}

.lp-faq-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.faq-list { text-align: left; }

.faq-item {
  border-bottom: 1px solid var(--color-gray-300);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-black);
  letter-spacing: 0.03em;
  text-align: left;
  gap: 16px;
}

.faq-icon {
  font-size: 20px;
  font-weight: 300;
  color: var(--color-gray-500);
  flex-shrink: 0;
  transition: transform 0.3s ease;
  line-height: 1;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding: 0 0 20px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--color-gray-700);
  line-height: 1.9;
}

/* Responsive */
@media (max-width: 768px) {
  .site-title { display: none; }
}