/* ===================================================================
   XEBEC CPS HOLDER Landing Page
   Stylesheet
   =================================================================== */

/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --xebec-green: #00A5A3;
  --xebec-green-dark: #008785;
  --white: #FFFFFF;
  --gray-100: #F5F5F7;
  --gray-200: #E8E8ED;
  --gray-400: #86868B;
  --gray-500: #6E6E73;
  --gray-800: #1D1D1F;
  --black: #000000;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--gray-800);
  line-height: 1.5;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--xebec-green); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 48px;
  display: flex;
  align-items: center;
  background: rgba(0,0,0,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}
.header-inner {
  max-width: 1024px;
  margin: 0 auto;
  padding: 0 22px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-logo a {
  display: inline-block;
}

.header-logo img {
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.68;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.header-logo a:hover img {
  opacity: 1;
  transform: scale(1.04);
}
.header-nav { display: flex; gap: 24px; }
.header-nav a {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.8);
  font-weight: 400;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}
.header-nav a:hover { color: var(--xebec-green); text-decoration: none; }

/* ===== HERO ===== */
.hero {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 64px 24px 0;
  overflow: hidden;
}
.hero-eyebrow {
  font-size: 1.0625rem;
  font-weight: 400;
  color: var(--xebec-green);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.08;
  margin-bottom: 12px;
}
.hero-subtitle {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--gray-400);
  letter-spacing: -0.005em;
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 1rem;
  color: var(--gray-400);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 28px;
}
.hero-cta {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 48px;
  margin-bottom: 48px;
}
.hero-cta a {
  font-size: 1.0625rem;
  font-weight: 400;
}
.hero-cta a:hover { text-decoration: underline; }
.hero-cta a::after {
  content: ' >';
  font-size: 0.85em;
}
.hero-image {
  max-width: 1800x;
  margin: 0 auto;
}

.hero-image img {
  width: 100%;
  filter: drop-shadow(0 40px 90px rgba(0,165,163,0.25));
}

/* ===== 3D VIEWER SECTION ===== */
.viewer3d-section {
  background:
  radial-gradient(
    circle at center,
    #ffffff 0%,
    #f3f5f8 45%,
    #e8edf2 100%
  );
  padding: 96px 24px 104px;
}
.viewer3d-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}
.viewer3d-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--xebec-green);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.viewer3d-section {
  background:
    radial-gradient(
      circle at 50% 35%,
      rgba(255,255,255,0.10) 0%,
      rgba(255,255,255,0.02) 22%,
      rgba(18,20,24,1) 58%,
      rgba(6,7,9,1) 100%
    );
  padding: 96px 24px 104px;
}
.viewer3d-lead {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto 32px;
}
.viewer3d-frame {
  background: rgba(255,255,255,0.55);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 60px -30px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,0.5);
}
.viewer3d-frame model-viewer {
  width: 100%;
  height: 580px;
  display: block;
  background-color: transparent;
  --poster-color: transparent;
  touch-action: none;
}
.viewer3d-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.viewer3d-controls button {
  appearance: none;
  border: 1px solid rgba(255,255,255,0.28);
  background: rgba(255,255,255,0.08);
  color: var(--white);
  font-size: 0.875rem;
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.viewer3d-controls button:hover {
  background: var(--xebec-green);
  border-color: var(--xebec-green);
  color: var(--white);
}

.viewer3d-controls button.is-active {
  background: var(--xebec-green);
  border-color: var(--xebec-green);
  color: var(--white);
}
.viewer3d-note {
  font-size: 0.8125rem;
  color: var(--gray-500);
  margin-top: 20px;
}

/* ===== PRODUCT MOVIE ===== */
.movie-section {
  background: var(--white);
  padding: 120px 24px;
}

.movie-inner {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}

.movie-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--gray-800);
  margin-bottom: 20px;
}

.movie-lead {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.8;
  max-width: 720px;
  margin: 0 auto 48px;
}

.movie-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 24px;
  overflow: hidden;
  background: var(--black);
  box-shadow: 0 24px 70px -36px rgba(0, 0, 0, 0.35);
}

.movie-frame iframe,
.movie-frame video {
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
}

/* ===== CINEMATIC SECTION ===== */
.cinematic {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 120px 24px;
}
.cinematic-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--xebec-green);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.cinematic h2 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}
.cinematic-lead {
  font-size: 1.3125rem;
  font-weight: 400;
  color: var(--gray-400);
  line-height: 1.5;
  max-width: 640px;
  margin: 0 auto 56px;
}
.cinematic-image {
  max-width: 800px;
  margin: 0 auto;
}
.cinematic-image img {
  width: 100%;
  border-radius: 16px;
}

/* ===== LIGHT SECTION ===== */
.light-section {
  background: var(--gray-100);
  text-align: center;
  padding: 120px 24px;
}
.light-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--gray-800);
  margin-bottom: 16px;
}
.light-lead {
  font-size: 1.0625rem;
  font-weight: 400;
  color: var(--gray-500);
  line-height: 1.65;
  max-width: 600px;
  margin: 0 auto;
}
/* 背景セクション内で段落を並べるときの上マージン用ユーティリティ */
.light-lead--mt { margin-top: 16px; }

/* ===== FEATURES GRID ===== */
.features-section {
  background: var(--white);
  padding: 120px 24px;
}
.features-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.015em;
  margin-bottom: 64px;
}
.features-grid {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.feature-tile {
  background: var(--gray-100);
  border-radius: 20px;
  padding: 48px 40px;
}
.feature-tile .feature-num {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--xebec-green);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.feature-tile h3 {
  font-size: 1.3125rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 14px;
  color: var(--gray-800);
}
.feature-tile p {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.65;
}
/* Feature tile with image */
.feature-tile--img {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.feature-tile--img .feature-img {
  aspect-ratio: 3/2;
  overflow: hidden;
}
.feature-tile--img .feature-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.feature-tile--img .feature-text {
  padding: 32px 40px 40px;
}

/* ===== MODEL SELECTION SECTION ===== */
.models-section {
  background: var(--gray-100);
  padding: 120px 24px;
}
.models-inner {
  max-width: 980px;
  margin: 0 auto;
}
.models-eyebrow {
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--xebec-green);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.models-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.015em;
  margin-bottom: 24px;
  color: var(--gray-800);
}
.models-lead {
  font-size: 1.0625rem;
  color: var(--gray-500);
  line-height: 1.8;
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px;
}
.models-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}
.model-card {
  background: var(--white);
  border-radius: 16px;
  padding: 32px 32px 30px;
  border-left: 4px solid var(--xebec-green);
}
.model-card-number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--xebec-green);
  line-height: 1;
  margin-bottom: 10px;
}
.model-card-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-800);
  line-height: 1.3;
  margin-bottom: 10px;
}
.model-card-desc {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.65;
}
.models-note {
  font-size: 0.8125rem;
  color: var(--gray-500);
  line-height: 1.7;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

/* ===== LINEUP SECTION ===== */
.lineup-section {
  background: var(--black);
  color: var(--white);
  padding: 120px 24px;
  text-align: center;
}
.lineup-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 12px;
}
.lineup-grid {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.lineup-card {
  background: #161617;
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(.25,.1,.25,1);
}
.lineup-card:hover { transform: scale(1.02); }
.lineup-card-image {
  aspect-ratio: 3/4;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px 0;
}
.lineup-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.lineup-card-body {
  padding: 24px 24px 32px;
  text-align: center;
}
.lineup-card-body h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.lineup-card-body p {
  font-size: 0.875rem;
  color: var(--gray-400);
  line-height: 1.5;
}

/* ===== BENEFITS ===== */
.benefits-section {
  background: var(--white);
  padding: 120px 24px;
  text-align: center;
}
.benefits-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 64px;
}
.benefits-grid {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}
.benefit-item h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--gray-800);
}
.benefit-item p {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.65;
}
.benefit-icon {
  width: 48px;
  height: 48px;
  background: var(--xebec-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}
.benefit-icon svg { width: 22px; height: 22px; fill: var(--white); }

/* ===== SPECS ===== */
.specs-section {
  background: var(--gray-100);
  padding: 120px 24px;
}
.specs-inner {
  max-width: 980px;
  margin: 0 auto;
}
.specs-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  text-align: center;
  margin-bottom: 56px;
}
.specs-table {
  width: 100%;
  border-collapse: collapse;
}
.specs-table tr {
  border-bottom: 1px solid var(--gray-200);
}
.specs-table th,
.specs-table td {
  padding: 18px 0;
  font-size: 0.9375rem;
  text-align: left;
  vertical-align: top;
}
.specs-table th {
  width: 200px;
  font-weight: 600;
  color: var(--gray-800);
}
.specs-table td {
  color: var(--gray-500);
}.specs-detail-image {
  margin-top: 20px;
}
.specs-detail-image img {
  width: 100%;
  max-width: 760px;
  height: auto;
  border-radius: 12px;
  background: var(--white);
}

/* ===== BENEFITS DESC ===== */
.benefits-desc {
  max-width: 720px;
  margin: 48px auto 0;
  text-align: center;
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.8;
}

/* ===== TARGET ===== */
.target-section {
  background: var(--gray-100);
  padding: 120px 24px;
}
.target-section .container {
  max-width: 980px;
  margin: 0 auto;
}
.target-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  text-align: center;
  margin-bottom: 56px;
}
.target-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.target-box h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--xebec-green);
}
.target-box ul {
  list-style: none;
}
.target-box ul li {
  font-size: 0.9375rem;
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-800);
  position: relative;
  padding-left: 20px;
}
.target-box ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--xebec-green);
  border-radius: 50%;
}
.target-note {
  margin-top: 40px;
  background: var(--white);
  border-radius: 12px;
  padding: 28px 32px;
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.8;
  border-left: 3px solid var(--xebec-green);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--white);
  padding: 120px 24px;
}

/* ===== FAQ MORE LINK ===== */
.faq-more {
  text-align: center;
  margin-top: 48px;
}
.faq-more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--xebec-green);
  border: 1.5px solid var(--xebec-green);
  padding: 14px 36px;
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}
.faq-more-link:hover {
  background: var(--xebec-green);
  color: var(--white);
  text-decoration: none;
}

.faq-inner {
  max-width: 1180px;
  margin: 0 auto;
}

.faq-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  text-align: center;
  margin-bottom: 56px;
  color: var(--gray-800);
}

.faq-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.faq-item {
  background: var(--gray-100);
  border-radius: 16px;
  padding: 28px 32px;
  border-left: 4px solid var(--xebec-green);
}

.faq-item h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--gray-800);
  line-height: 1.5;
  margin-bottom: 10px;
}

.faq-item p {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.8;
}

/* ===== DOWNLOADS SECTION ===== */
.downloads-section {
  background: var(--gray-100);
  padding: 120px 24px;
}
.downloads-inner {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}
.downloads-eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--xebec-green);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.downloads-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--gray-800);
  margin-bottom: 20px;
}
.downloads-lead {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.8;
  max-width: 780px;
  margin: 0 auto 48px;
}
.downloads-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
  text-align: left;
}
.download-card {
  background: var(--white);
  border-radius: 20px;
  padding: 36px 36px 32px;
  display: flex;
  flex-direction: column;
  border-top: 4px solid var(--xebec-green);
}
.download-card-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--xebec-green);
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}
.download-card-title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--gray-800);
  line-height: 1.3;
  margin-bottom: 12px;
}
.download-card-desc {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
}
.download-card-button {
  display: inline-block;
  text-align: center;
  background: var(--xebec-green);
  color: var(--white);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.2s ease;
}
.download-card-button:hover {
  background: var(--xebec-green-dark);
}
.download-card-button[aria-disabled="true"] {
  background: var(--gray-300, #CFCFD4);
  pointer-events: none;
}
.download-card-note {
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-top: 12px;
  text-align: center;
}
.downloads-note {
  font-size: 0.8125rem;
  color: var(--gray-500);
  line-height: 1.7;
  max-width: 780px;
  margin: 0 auto;
}

/* ===== RELEASE ===== */
.release-section {
  background: var(--white);
  padding: 120px 24px;
  text-align: center;
}
.release-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 32px;
}
.release-date {
  font-family: "SF Pro Display", "Arial", sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--xebec-green);
  margin-bottom: 4px;
}
.release-date-label {
  font-size: 1rem;
  color: var(--gray-400);
  margin-bottom: 32px;
}
.release-text {
  max-width: 640px;
  margin: 0 auto;
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.8;
}
/* release-text内の段落間スペース */
.release-text p + p { margin-top: 16px; }

/* ===== CTA SUB ===== */
.cta-sub {
  font-size: 1.0625rem;
  font-weight: 600;
  color: rgba(255,255,255,0.95);
  margin-bottom: 36px;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 120px 24px;
}
.cta-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}
.cta-section p {
  font-size: 1.0625rem;
  color: var(--gray-400);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.65;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-apple {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.0625rem;
  font-weight: 400;
  padding: 12px 28px;
  border-radius: 980px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-apple--primary {
  background: var(--xebec-green);
  color: var(--white);
}
.btn-apple--primary:hover { background: var(--xebec-green-dark); text-decoration: none; }
.btn-apple--secondary {
  background: transparent;
  color: var(--xebec-green);
  border: 1px solid var(--xebec-green);
}
.btn-apple--secondary:hover {
  background: var(--xebec-green);
  color: var(--white);
  border-color: var(--xebec-green);
  text-decoration: none;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--gray-100);
  padding: 40px 24px;
  text-align: center;
}
.footer-logo {
  margin-bottom: 8px;
}

.footer-logo a {
  display: inline-block;
}

.footer-logo img {
  height: 40px;
  width: auto;
  margin: 0 auto;
  opacity: 0.7;
}

.footer-logo a:hover img {
  opacity: 1;
}
.footer-text {
  font-size: 0.75rem;
  color: var(--gray-400);
  line-height: 1.7;
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(.25,.1,.25,1), transform 0.8s cubic-bezier(.25,.1,.25,1);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .header-nav { display: none; }
  .hero { padding: 120px 20px 0; }
  .hero-title { font-size: 2.25rem; }
  .hero-subtitle { font-size: 1.25rem; }
  .cinematic h2, .light-section h2, .features-section h2,
  .lineup-section h2, .benefits-section h2, .specs-section h2,
  .target-section h2, .release-section h2, .cta-section h2,
  .viewer3d-section h2, .models-section h2, .downloads-section h2, .faq-section h2 {
    font-size: 1.75rem;
  }
  .cinematic-lead { font-size: 1.0625rem; }
  .features-grid { grid-template-columns: 1fr; gap: 20px; }
  .feature-tile { padding: 36px 28px; }
  .feature-tile--img .feature-text { padding: 24px 28px 32px; }
  .viewer3d-section { padding: 64px 16px 72px; }
  .viewer3d-lead { font-size: 0.875rem; margin-bottom: 24px; }
  .viewer3d-frame { border-radius: 16px; }
  .viewer3d-frame model-viewer { height: 380px; }
  .models-section { padding: 80px 20px; }
  .models-lead { margin-bottom: 36px; }
  .models-grid { grid-template-columns: 1fr; gap: 16px; margin-bottom: 28px; }
  .model-card { padding: 26px 26px 24px; }
  .lineup-grid { grid-template-columns: 1fr; max-width: 340px; margin-left: auto; margin-right: auto; }
  .benefits-grid { grid-template-columns: 1fr; gap: 48px; }
  .target-grid { grid-template-columns: 1fr; }
  .release-date { font-size: 2.25rem; }
  .downloads-section { padding: 80px 20px; }
  .downloads-lead { font-size: 0.9375rem; margin-bottom: 36px; }
  .downloads-grid { grid-template-columns: 1fr; gap: 16px; margin-bottom: 24px; }
  .download-card { padding: 28px 28px 26px; }
  .cinematic, .light-section, .features-section, .lineup-section,
  .benefits-section, .specs-section, .cta-section, .target-section, .release-section { padding: 80px 20px; }

  .movie-section {
    padding: 80px 20px;
  }

  .movie-section h2 {
    font-size: 1.75rem;
  }

  .movie-frame {
    border-radius: 16px;
  }
    .faq-list {
    grid-template-columns: 1fr;
  }
}
/* ===== FORCE HEADER ALWAYS VISIBLE ===== */
.header {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  transform: translateY(0) !important;
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

.header.hide,
.header.hidden,
.header.is-hidden,
.header.nav-up,
.header.scrolled-down {
  transform: translateY(0) !important;
  opacity: 1 !important;
  visibility: visible !important;
}
/* =================================================================
   HAMBURGER BUTTON & MOBILE FULLSCREEN MENU
   ================================================================= */

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 200;
  position: relative;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}
.hamburger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(0, 0, 0, 0.97);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}
.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 0 32px;
}
.mobile-menu-link {
  display: block;
  width: 100%;
  text-align: center;
  font-size: 1.25rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s ease;
}
.mobile-menu.is-open .mobile-menu-link { opacity: 1; transform: translateY(0); }
.mobile-menu.is-open .mobile-menu-link:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(2) { transition-delay: 0.10s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(3) { transition-delay: 0.13s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(4) { transition-delay: 0.16s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(5) { transition-delay: 0.19s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(6) { transition-delay: 0.22s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(7) { transition-delay: 0.25s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(8) { transition-delay: 0.28s; }
.mobile-menu.is-open .mobile-menu-link:nth-child(9) { transition-delay: 0.31s; }
.mobile-menu-link:hover,
.mobile-menu-link:focus { color: var(--xebec-green); text-decoration: none; }
.mobile-menu-link--cta {
  margin-top: 16px;
  border: 1.5px solid var(--xebec-green);
  border-radius: 999px;
  color: var(--xebec-green);
  font-weight: 600;
  padding: 14px 40px;
  width: auto;
}
.mobile-menu-link--cta:hover { background: var(--xebec-green); color: var(--white); }

@media (max-width: 768px) {
  .hamburger { display: flex; }
}