/* ============================================================
   MODVEL — MODERN SPORT AESTHETIC
   Dark navy base · Electric blue accents · Clean editorial type
   ============================================================ */

:root {
  /* Core palette */
  --navy-900:  #0b0f1a;
  --navy-800:  #111827;
  --navy-700:  #1a2235;
  --navy-600:  #1f2d44;
  --navy-400:  #2e4060;
  --blue-500:  #2563eb;
  --blue-400:  #3b82f6;
  --blue-300:  #93c5fd;
  --blue-glow: rgba(37,99,235,0.22);
  --cyan-400:  #22d3ee;
  --white:     #ffffff;
  --gray-50:   #f8fafc;
  --gray-100:  #f1f5f9;
  --gray-200:  #e2e8f0;
  --gray-400:  #94a3b8;
  --gray-600:  #475569;
  --star:      #f59e0b;
  /* Type */
  --font-display: 'Syne', 'Arial Black', sans-serif;
  --font-body:    'DM Sans', 'Segoe UI', sans-serif;
  /* Radii */
  --r-sm:  6px;
  --r-md:  12px;
  --r-lg:  20px;
  --r-xl:  28px;
  /* Shadows */
  --shadow-card: 0 20px 60px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 40px rgba(37,99,235,0.18);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  background-color: var(--navy-900);
  color: var(--gray-100);
  line-height: 1.65;
  min-width: 320px;
}

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

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background: var(--navy-800);
  border-bottom: 1px solid rgba(59,130,246,0.18);
  padding: 0.9rem 1.25rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-mark {
  background: var(--blue-500);
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: -0.02em;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--white);
  letter-spacing: -0.02em;
}

.header-tagline {
  font-size: 0.78rem;
  color: var(--blue-300);
  font-weight: 500;
  opacity: 0.85;
  display: none;
}

@media (min-width: 480px) {
  .header-tagline { display: block; }
}

/* ============================================================
   HERO BAND
   ============================================================ */
.hero-band {
  background: linear-gradient(90deg, var(--blue-500) 0%, #1d4ed8 100%);
  padding: 0.55rem 1rem;
}

.hero-band-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(255,255,255,0.95);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.band-dot {
  opacity: 0.5;
}

/* ============================================================
   PRODUCT SECTION
   ============================================================ */
.product-section {
  padding: 2rem 1rem 1rem;
  max-width: 1120px;
  margin: 0 auto;
}

.product-card {
  background: var(--navy-700);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(59,130,246,0.12);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery-col {
  background: var(--navy-800);
  padding: 1.5rem 1.25rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.gallery-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.gal-radio { display: none; }

.gal-stage {
  position: relative;
  width: 100%;
  background: var(--navy-900);
  border-radius: var(--r-lg);
  overflow: hidden;
  min-height: 270px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(59,130,246,0.1);
}

.gal-frame {
  display: none;
  width: 100%;
  padding: 1rem;
  align-items: center;
  justify-content: center;
}

.gal-frame img {
  width: 100%;
  max-height: 300px;
  object-fit: contain;
  border-radius: var(--r-md);
}

#g1:checked ~ .gal-stage #frame1,
#g2:checked ~ .gal-stage #frame2,
#g3:checked ~ .gal-stage #frame3,
#g4:checked ~ .gal-stage #frame4 {
  display: flex;
}

.gal-thumbs {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

.gal-thumb {
  cursor: pointer;
  border-radius: var(--r-sm);
  border: 2px solid rgba(255,255,255,0.08);
  overflow: hidden;
  width: 58px;
  height: 58px;
  flex-shrink: 0;
  transition: border-color 0.15s ease, transform 0.12s ease;
  background: var(--navy-900);
}

.gal-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gal-thumb:hover {
  border-color: var(--blue-400);
  transform: translateY(-2px);
}

#g1:checked ~ .gal-thumbs label[for="g1"],
#g2:checked ~ .gal-thumbs label[for="g2"],
#g3:checked ~ .gal-thumbs label[for="g3"],
#g4:checked ~ .gal-thumbs label[for="g4"] {
  border-color: var(--cyan-400);
  box-shadow: 0 0 0 1px var(--cyan-400), 0 0 12px rgba(34,211,238,0.25);
}

/* ============================================================
   PRODUCT COLUMN
   ============================================================ */
.product-col {
  padding: 1.75rem 1.25rem 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.product-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(37,99,235,0.18);
  border: 1px solid rgba(59,130,246,0.35);
  color: var(--blue-300);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.28rem 0.75rem;
  border-radius: 50px;
  width: fit-content;
}

.product-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--white);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.stars {
  color: var(--star);
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.rating-label {
  font-size: 0.82rem;
  color: var(--gray-400);
  font-weight: 500;
}

/* SPECS PILLS */
.specs-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.spec-pill {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--gray-200);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.3rem 0.7rem;
  border-radius: 50px;
}

/* INFO BLOCKS */
.info-block {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.info-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.info-text {
  font-size: 0.9rem;
  color: var(--gray-200);
}

/* FEATURES */
.features-block {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.features-heading {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.01em;
}

.features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.feature-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.feature-icon {
  color: var(--blue-400);
  font-size: 1rem;
  line-height: 1.5;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

.feature-item strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.2rem;
}

.feature-item p {
  font-size: 0.86rem;
  color: var(--gray-400);
  line-height: 1.65;
}

/* VISION NOTE */
.vision-note {
  font-size: 0.84rem;
  color: var(--blue-300);
  font-style: italic;
  border-left: 3px solid var(--blue-500);
  padding-left: 0.85rem;
  line-height: 1.65;
  opacity: 0.85;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  padding: 1.75rem 1rem;
  max-width: 1120px;
  margin: 0 auto;
}

.cta-inner {
  background: linear-gradient(135deg, var(--blue-500) 0%, #1d4ed8 60%, #1e3a8a 100%);
  border-radius: var(--r-xl);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-glow), 0 8px 30px rgba(0,0,0,0.3);
  position: relative;
  overflow: hidden;
}

.cta-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 50%, rgba(34,211,238,0.12) 0%, transparent 65%);
  pointer-events: none;
}

.cta-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.cta-pre {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}

.cta-sub {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
}

.cta-button {
  display: inline-block;
  background: var(--white);
  color: var(--blue-500);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  text-decoration: none;
  padding: 0.9rem 2.5rem;
  border-radius: 50px;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  transition: background 0.18s ease, color 0.18s ease, transform 0.15s ease, box-shadow 0.18s ease;
  position: relative;
  z-index: 1;
}

.cta-button:hover {
  background: var(--cyan-400);
  color: var(--navy-900);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(34,211,238,0.35);
}

.cta-button:active {
  transform: translateY(0);
}

.cta-bottom {
  padding-top: 0.5rem;
  padding-bottom: 3rem;
}

/* ============================================================
   REVIEWS SECTION
   ============================================================ */
.reviews-section {
  padding: 0 1rem 2rem;
  max-width: 1120px;
  margin: 0 auto;
}

.reviews-wrap {
  background: var(--navy-700);
  border-radius: var(--r-xl);
  border: 1px solid rgba(59,130,246,0.1);
  box-shadow: var(--shadow-card);
  padding: 1.75rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.reviews-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.reviews-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}

.reviews-aggregate {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.agg-stars {
  color: var(--star);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}

.agg-score {
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
}

/* REVIEW */
.review {
  padding: 1.35rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.review-sep {
  height: 1px;
  background: rgba(255,255,255,0.06);
}

.review-head {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid rgba(59,130,246,0.3);
  background: var(--navy-600);
}

.review-id {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.reviewer-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--white);
}

.reviewer-stars {
  color: var(--star);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

.reviewer-title {
  font-weight: 700;
  font-size: 0.93rem;
  color: var(--gray-100);
  margin-top: 0.08rem;
}

.review-meta {
  font-size: 0.78rem;
  color: var(--gray-600);
}

.review-body {
  font-size: 0.9rem;
  color: var(--gray-200);
  line-height: 1.72;
}

.review-imgs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.review-imgs img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--r-sm);
  border: 1px solid rgba(255,255,255,0.08);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--navy-800);
  border-top: 1px solid rgba(59,130,246,0.12);
  padding: 2.5rem 1.25rem 2rem;
  margin-top: 1rem;
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.footer-logo-block {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.footer-logo-mark {
  background: var(--blue-500);
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  width: 30px;
  height: 30px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.footer-logo-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -0.02em;
}

.footer-product-name {
  font-size: 0.78rem;
  color: var(--gray-600);
  max-width: 560px;
  line-height: 1.5;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.35rem 0.6rem;
  font-size: 0.8rem;
}

.footer-link {
  color: var(--blue-300);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-sep {
  color: rgba(255,255,255,0.2);
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--gray-600);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (min-width: 640px) {
  .product-title { font-size: 1.45rem; }

  .cta-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
    padding: 1.75rem 2rem;
  }

  .review-imgs img {
    width: 96px;
    height: 96px;
  }

  .reviews-wrap { padding: 2rem 1.75rem; }
}

@media (min-width: 768px) {
  .product-card {
    flex-direction: row;
    align-items: flex-start;
  }

  .gallery-col {
    width: 44%;
    flex-shrink: 0;
    padding: 2rem 1.5rem 2rem 2rem;
    border-bottom: none;
    border-right: 1px solid rgba(255,255,255,0.05);
    position: sticky;
    top: 70px;
    align-self: flex-start;
  }

  .gal-stage { min-height: 340px; }
  .gal-frame img { max-height: 380px; }

  .gal-thumb {
    width: 64px;
    height: 64px;
  }

  .product-col {
    flex: 1;
    padding: 2.25rem 2rem 2.75rem;
  }

  .product-title { font-size: 1.5rem; }
}

@media (min-width: 1024px) {
  .product-section { padding: 2.5rem 2rem 1rem; }
  .cta-section { padding-left: 2rem; padding-right: 2rem; }
  .reviews-section { padding-left: 2rem; padding-right: 2rem; }

  .gallery-col {
    width: 45%;
    padding: 2.25rem 1.75rem 2.25rem 2.25rem;
  }

  .gal-stage { min-height: 390px; }
  .gal-frame img { max-height: 440px; }

  .gal-thumb {
    width: 72px;
    height: 72px;
  }

  .product-col {
    padding: 2.5rem 2.5rem 3rem;
  }

  .product-title { font-size: 1.65rem; }

  .reviews-wrap { padding: 2.25rem 2.25rem; }
}