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

:root {
  --bg: #0a0a0f;
  --bg2: #111118;
  --bg3: #16161f;
  --accent: #7c3aed;
  --accent2: #a855f7;
  --accent-glow: rgba(124,58,237,0.35);
  --text: #f0f0f5;
  --muted: #9090a8;
  --border: #2a2a3a;
  --radius: 16px;
  --max: 1160px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; border-radius: var(--radius); }

/* ===== UTILITIES ===== */
.center { text-align: center; }
.accent { color: var(--accent2); }
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 0.75rem;
}
h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}
h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
p { color: var(--muted); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  background: var(--accent2);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}
.btn-primary.full { width: 100%; text-align: center; }

.btn-ghost {
  display: inline-block;
  color: var(--muted);
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.95rem;
  transition: border-color 0.2s, color 0.2s;
}
.btn-ghost:hover { border-color: var(--accent2); color: var(--text); }

/* ===== NAV ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 5%;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--accent2); }
.nav-links { display: flex; gap: 2rem; list-style: none; align-items: center; }
.nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--muted); transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-weight: 700 !important;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--accent2) !important; }

/* ===== HERO ===== */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding: 7rem 5% 5rem;
  max-width: var(--max);
  margin: 0 auto;
}
.hero-eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 1rem;
}
.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.08;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}
.hero-sub { font-size: 1.1rem; color: var(--muted); margin-bottom: 2rem; max-width: 480px; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; }
.hero-stats { display: flex; gap: 2rem; flex-wrap: wrap; }
.stat span { font-size: 1.9rem; font-weight: 900; color: var(--text); display: block; }
.stat p { font-size: 0.8rem; color: var(--muted); max-width: 110px; margin: 0; }
.hero-image img {
  width: 100%;
  border-radius: 24px;
  box-shadow: 0 30px 80px rgba(124,58,237,0.25);
}

/* ===== STORY ===== */
.story {
  background: var(--bg2);
  padding: 6rem 5%;
}
.story-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 5rem;
  max-width: var(--max);
  margin: 0 auto;
}
.story-text p { font-size: 1.05rem; }
.story-img img {
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

/* ===== PRODUCT ===== */
.product {
  padding: 6rem 5%;
  max-width: var(--max);
  margin: 0 auto;
}
.product-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 2.5rem 0 1.5rem;
}
.product-gallery img {
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform 0.3s;
}
.product-gallery img:hover { transform: scale(1.03); }
.product-caption { color: var(--muted); font-size: 0.95rem; }

/* ===== FEATURES ===== */
.features {
  background: var(--bg2);
  padding: 6rem 5%;
}
.features h2 { margin-bottom: 3rem; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
}
.feature-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.feature-icon {
  width: 2.5rem;
  height: 2.5rem;
  color: var(--accent2);
  margin-bottom: 1.25rem;
}
.feature-icon svg { width: 100%; height: 100%; }
.feature-card p { font-size: 0.92rem; }

/* ===== HOW IT WORKS ===== */
.how {
  padding: 6rem 5%;
  max-width: var(--max);
  margin: 0 auto;
}
.how-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 5rem;
}
.how-list { list-style: none; display: flex; flex-direction: column; gap: 1.5rem; margin-top: 1.5rem; }
.how-list li {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  color: var(--muted);
  font-size: 0.97rem;
}
.how-list li span {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent2);
  background: rgba(168,85,247,0.12);
  border-radius: 6px;
  padding: 0.2rem 0.5rem;
  white-space: nowrap;
  margin-top: 2px;
}

/* ===== IMPACT ===== */
.impact {
  background: var(--bg2);
  padding: 6rem 5%;
  text-align: center;
}
.impact-sub { max-width: 600px; margin: 0 auto 3rem; font-size: 1.05rem; }
.impact-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.impact-stat span {
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 900;
  color: var(--accent2);
  display: block;
  line-height: 1;
}
.impact-stat p { font-size: 1rem; color: var(--muted); margin-top: 0.5rem; }
.testimonial {
  max-width: 640px;
  margin: 0 auto;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  padding: 1.75rem 2rem;
  text-align: left;
}
.testimonial p {
  font-size: 1.05rem;
  color: var(--text);
  font-style: italic;
  margin-bottom: 0.75rem;
}
.testimonial cite { font-size: 0.85rem; color: var(--muted); }

/* ===== AWARDS MARQUEE ===== */
.awards {
  background: var(--bg2);
  padding: 3.5rem 0 3rem;
  overflow: hidden;
}
.awards .section-label {
  margin-bottom: 2rem;
  display: block;
}
.awards-track-wrap {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}
.awards-track {
  display: flex;
  gap: 4.5rem;
  align-items: center;
  width: max-content;
  animation: awards-marquee 32s linear infinite;
  padding: 0.5rem 0;
}
.awards-track:hover { animation-play-state: paused; }
@keyframes awards-marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.award-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
  cursor: default;
}
.award-item img {
  height: 52px;
  width: auto;
  max-width: 150px;
  object-fit: contain;
  filter: grayscale(1) invert(1) brightness(0.75);
  mix-blend-mode: screen;
  transition: filter 0.3s, mix-blend-mode 0.3s;
  border-radius: 0;
}
.award-item img.samsung-logo {
  height: 64px;
  max-width: 190px;
}
.award-item:hover img {
  filter: none;
  mix-blend-mode: normal;
}


/* ===== CREDIBILITY ===== */
.cred {
  background: var(--bg2);
  padding: 6rem 5%;
}
.cred h2 { margin-bottom: 3rem; }
.cred-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
}
.cred-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.3s;
}
.cred-card:hover { border-color: var(--accent); }
.cred-logo {
  height: 48px;
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}
.cred-logo img {
  height: 100%;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  border-radius: 0;
  filter: grayscale(1) invert(1) brightness(0.75);
  mix-blend-mode: screen;
  transition: filter 0.3s, mix-blend-mode 0.3s;
}
.cred-card:hover .cred-logo img {
  filter: none;
  mix-blend-mode: normal;
}
.cred-logo svg {
  width: 36px;
  height: 36px;
  color: var(--muted);
  transition: color 0.3s;
}
.cred-card:hover .cred-logo svg {
  color: var(--accent2);
}
.cred-card h3 { margin-bottom: 0.75rem; color: var(--text); }
.cred-card p { font-size: 0.9rem; }

/* ===== PRICING ===== */
.pricing {
  padding: 6rem 5%;
  max-width: var(--max);
  margin: 0 auto;
}
.pricing-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.pricing-inner > div:first-child p { font-size: 1.05rem; }
.pricing-card {
  background: var(--bg3);
  border: 1px solid var(--accent);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 0 60px var(--accent-glow);
}
.pricing-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 0.5rem !important;
}
.pricing-price {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--text) !important;
  margin-bottom: 1.5rem !important;
}
.pricing-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 2rem;
}
.pricing-card li { font-size: 0.95rem; color: var(--text); }
.pricing-card li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.pricing-card .check-icon {
  width: 1rem;
  height: 1rem;
  color: var(--accent2);
  flex-shrink: 0;
}
.pricing-card .check-icon svg {
  width: 100%;
  height: 100%;
}

/* ===== ROADMAP ===== */
.roadmap {
  background: var(--bg2);
  padding: 6rem 5%;
}
.roadmap h2 { margin-bottom: 3.5rem; }
.timeline {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.tl-item {
  display: flex;
  gap: 2rem;
  position: relative;
  padding-bottom: 2.5rem;
}
.tl-item::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 24px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.tl-item:last-child::before { display: none; }
.tl-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg2);
  flex-shrink: 0;
  margin-top: 2px;
  box-shadow: 0 0 12px var(--accent-glow);
}
.tl-content { flex: 1; }
.tl-year {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent2);
  display: block;
  margin-bottom: 0.25rem;
}
.tl-content h3 { color: var(--text); font-size: 1.05rem; margin-bottom: 0.4rem; }
.tl-content p { font-size: 0.92rem; margin: 0; }

/* ===== DOWNLOAD ===== */
.download {
  padding: 6rem 5%;
  max-width: var(--max);
  margin: 0 auto;
}
.download-card {
  background: linear-gradient(145deg, rgba(124,58,237,0.14), rgba(17,17,24,1) 38%);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 0 45px rgba(124,58,237,0.16);
}
.download-card h2 {
  margin-bottom: 0.8rem;
}
.download-card > p {
  max-width: 700px;
  margin-bottom: 1.4rem;
}
.download-note {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.9rem;
}

/* ===== CTA ===== */
.cta {
  padding: 7rem 5%;
  text-align: center;
  background: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, transparent 60%);
}
.cta h2 { margin-bottom: 1rem; }
.cta > p { max-width: 560px; margin: 0 auto 2.5rem; font-size: 1.05rem; }
.cta-form {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 560px;
  margin: 0 auto 1rem;
}
.cta-form input,
.cta-form select,
.cta-form textarea {
  flex: 1;
  min-width: 200px;
  padding: 0.8rem 1.25rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s;
}
.cta-form textarea {
  min-width: 100%;
  border-radius: 16px;
  resize: vertical;
}
.cta-form select {
  appearance: none;
}
.cta-form input:focus,
.cta-form select:focus,
.cta-form textarea:focus { border-color: var(--accent); }
.cta-note { color: var(--muted); font-size: 0.82rem; }
.success-msg { color: var(--accent2); font-size: 1.1rem; font-weight: 600; }

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer p { font-size: 0.82rem; color: var(--muted); margin: 0; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero, .story-inner, .how-inner, .pricing-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .hero { padding-top: 4rem; }
  .hero h1 { font-size: 2.8rem; }
  .product-gallery { grid-template-columns: 1fr 1fr; }
  .nav-links { gap: 1rem; }
}
@media (max-width: 600px) {
  .nav-links li:not(:last-child) { display: none; }
  .product-gallery { grid-template-columns: 1fr; }
  .impact-stats { gap: 2rem; }
  .hero-stats { gap: 1.5rem; }
}