/* ============================================================
   FLAME – Performance Grappling Wear
   styles.css
   ============================================================ */

/* ── Variables ─────────────────────────────────────── */
:root {
  --black:     #000000;
  --red:       #ff2a2a;
  --red-dim:   #cc1f1f;
  --dark:      #0d0d0d;
  --dark-2:    #1a1a1a;
  --dark-3:    #262626;
  --white:     #ffffff;
  --white-dim: rgba(255,255,255,0.65);
  --white-faint: rgba(255,255,255,0.08);

  --font-display: 'Bebas Neue', sans-serif;
  --font-condensed: 'Barlow Condensed', sans-serif;
  --font-body: 'Barlow', sans-serif;

  --nav-h: 72px;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.2s ease;
}

/* ── Reset & Base ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul { list-style: none; }

/* ── Typography ────────────────────────────────────── */
.section-label {
  display: block;
  font-family: var(--font-condensed);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.section-title em {
  font-style: normal;
  color: var(--red);
}

/* ── Layout ────────────────────────────────────────── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

.section {
  padding: clamp(5rem, 10vw, 9rem) 0;
  position: relative;
  overflow: hidden;
}

/* ── Buttons ───────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-condensed);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.9rem 2.2rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.06);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.btn:hover::after { transform: scaleX(1); }

.btn-primary {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}

.btn-primary:hover {
  background: var(--red-dim);
  border-color: var(--red-dim);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.35);
}

.btn-outline:hover {
  border-color: var(--red);
  color: var(--red);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.2);
}

.btn-ghost:hover {
  border-color: var(--white);
}

.btn-card {
  background: transparent;
  color: var(--white-dim);
  border-color: rgba(255,255,255,0.2);
  font-size: 0.78rem;
  padding: 0.6rem 1.2rem;
}

.btn-card:hover {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}

/* ── Reveal Animations ─────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.75s cubic-bezier(0.22,1,0.36,1),
              transform 0.75s cubic-bezier(0.22,1,0.36,1);
}

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

/* stagger children */
.reveal:nth-child(2)  { transition-delay: 0.1s; }
.reveal:nth-child(3)  { transition-delay: 0.2s; }
.reveal:nth-child(4)  { transition-delay: 0.3s; }

/* ================================================================
   NAVBAR
================================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255,42,42,0.25);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 4px;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: 0.08em;
  color: var(--white);
  line-height: 1;
  transition: color var(--transition-fast);
}

.nav-logo:hover .logo-text { color: var(--red); }

.logo-dot {
  width: 7px;
  height: 7px;
  background: var(--red);
  border-radius: 50%;
  margin-bottom: 14px;
  flex-shrink: 0;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  font-family: var(--font-condensed);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white-dim);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 2px;
  background: var(--red);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a:hover::after { color: var(--white); width: 100%; }

.nav-cta {
  background: var(--red) !important;
  color: var(--white) !important;
  padding: 0.5rem 1.3rem;
  border: 2px solid var(--red);
  transition: background var(--transition), border-color var(--transition) !important;
}

.nav-cta:hover {
  background: transparent !important;
}

.nav-cta::after { display: none; }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 10;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
  transform-origin: center;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ================================================================
   HERO
================================================================ */
.hero {
  position: relative;
  height: 100svh;
  min-height: 620px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Parallax layer */
.hero-parallax {
  position: absolute;
  inset: -20% 0;
  background: url('images/hero-flame.png') center/cover no-repeat;
  will-change: transform;
  z-index: 0;
}

/* Dark gradient overlay */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    rgba(0,0,0,0.88) 45%,
    rgba(0,0,0,0.45) 100%
  );
  z-index: 1;
}

/* Grain noise texture */
.hero-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  z-index: 2;
  pointer-events: none;
  opacity: 0.4;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  padding-top: var(--nav-h);
}

.hero-eyebrow {
  font-family: var(--font-condensed);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--red);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  display: block;
  transition-delay: 0.1s;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 14vw, 13rem);
  line-height: 0.88;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.5rem;
  transition-delay: 0.2s;
}

.title-accent {
  color: var(--red);
  display: inline-block;
  position: relative;
}

.hero-sub {
  font-family: var(--font-condensed);
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--white-dim);
  margin-bottom: 2.5rem;
  transition-delay: 0.35s;
  max-width: 400px;
}

.hero-content .btn {
  transition-delay: 0.45s;
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: clamp(1.25rem, 4vw, 3rem);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-scroll-hint span {
  font-family: var(--font-condensed);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: rgba(255,255,255,0.35);
  writing-mode: vertical-lr;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.3), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 0.8; transform: scaleY(1.3); }
}

/* ================================================================
   ABOUT
================================================================ */
.about { background: var(--dark); }

.about::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 40%; height: 3px;
  background: linear-gradient(to right, var(--red), transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.about-text .section-title {
  margin-bottom: 1.5rem;
}

.about-text p {
  font-size: 1.05rem;
  color: var(--white-dim);
  margin-bottom: 1.25rem;
  max-width: 500px;
  line-height: 1.75;
}

.about-text .btn { margin-top: 1rem; }

/* Visual side */
.about-visual { position: relative; }

.about-img-wrap {
  position: relative;
  border-radius: 2px;
  overflow: hidden;
}

.about-img-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,42,42,0.15) 0%, transparent 60%);
  z-index: 1;
  pointer-events: none;
}

.about-img-wrap img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.22,1,0.36,1);
  filter: saturate(0.8) contrast(1.1);
}

.about-img-wrap:hover img { transform: scale(1.04); }

.about-img-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 2;
  background: var(--red);
  padding: 0.6rem 1rem;
  text-align: center;
  line-height: 1;
}

.badge-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--white);
}

.badge-label {
  display: block;
  font-family: var(--font-condensed);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
}

.about-stat-row {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: var(--dark-2);
  border-left: 3px solid var(--red);
}

.stat { flex: 1; text-align: center; }

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--white);
  line-height: 1;
}

.stat-label {
  display: block;
  font-family: var(--font-condensed);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--white-dim);
  text-transform: uppercase;
  margin-top: 0.25rem;
}

/* ================================================================
   PRODUCTS
================================================================ */
.products { background: var(--black); }

.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* Product card */
.product-card {
  background: var(--dark-2);
  border: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
  cursor: pointer;
}

.product-card:hover {
  border-color: rgba(255,42,42,0.4);
  transform: translateY(-6px);
}

.card-img-wrap {
  position: relative;
  overflow: hidden;
  background: var(--dark-3);
}

.card-img-wrap img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.22,1,0.36,1);
  filter: saturate(0.75);
}

.product-card:hover .card-img-wrap img {
  transform: scale(1.07);
  filter: saturate(1);
}

.card-badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  background: var(--red);
  color: var(--white);
  font-family: var(--font-condensed);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
}

.card-badge--hot { background: #ff6b00; }
.card-badge--set { background: var(--dark-3); border: 1px solid rgba(255,255,255,0.2); }

.card-body { padding: 1.25rem; }

.card-name {
  font-family: var(--font-condensed);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 0.3rem;
}

.card-category {
  font-family: var(--font-condensed);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.35);
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.card-price {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--white);
  line-height: 1;
}

.products-cta {
  text-align: center;
  margin-top: 3.5rem;
}

/* ================================================================
   FEATURES
================================================================ */
.features {
  background: var(--dark);
  padding: 0;
}

.features-bg-parallax {
  position: absolute;
  inset: -20% 0;
  background: url('https://images.unsplash.com/photo-1571731956672-f2b94d7dd0cb?w=1600&q=80') center/cover no-repeat;
  z-index: 0;
  will-change: transform;
}

.features-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.87);
  z-index: 1;
}

.features-inner {
  position: relative;
  z-index: 2;
  padding-top: clamp(5rem, 10vw, 9rem);
  padding-bottom: clamp(5rem, 10vw, 9rem);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

.feature-item {
  padding: 2.5rem 1.75rem;
  border: 1px solid rgba(255,255,255,0.07);
  background: rgba(255,255,255,0.02);
  transition: border-color var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.feature-item:hover { border-color: rgba(255,42,42,0.3); background: rgba(255,42,42,0.04); }
.feature-item:hover::before { transform: scaleX(1); }

.feat-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.5rem;
}

.feat-icon svg {
  width: 100%;
  height: 100%;
}

.feat-title {
  font-family: var(--font-condensed);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.feat-desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
}

/* ================================================================
   CTA SECTION
================================================================ */
.cta-section {
  background: var(--dark-2);
  overflow: hidden;
}

.cta-section::after {
  content: 'FLAME';
  position: absolute;
  bottom: -2rem;
  right: -1rem;
  font-family: var(--font-display);
  font-size: 18vw;
  color: rgba(255,255,255,0.02);
  line-height: 1;
  pointer-events: none;
  z-index: 0;
  letter-spacing: -0.02em;
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 8rem);
  line-height: 0.9;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.cta-sub {
  font-size: 1rem;
  color: var(--white-dim);
  margin-bottom: 2rem;
  max-width: 420px;
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.cta-visual {
  position: relative;
  border-radius: 2px;
  overflow: hidden;
}

.cta-visual img {
  width: 100%;
  height: 540px;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.1);
  transition: transform 0.8s cubic-bezier(0.22,1,0.36,1);
}

.cta-visual:hover img { transform: scale(1.03); }

.cta-img-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,42,42,0.2) 0%, transparent 70%);
  pointer-events: none;
}

/* ================================================================
   FOOTER
================================================================ */
.footer {
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3.5rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 1rem;
  line-height: 1;
}

.footer-brand p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  transition: border-color var(--transition), color var(--transition);
}

.social-link svg { width: 16px; height: 16px; }

.social-link:hover {
  border-color: var(--red);
  color: var(--red);
}

.footer-col h4 {
  font-family: var(--font-condensed);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.75rem; }

.footer-col a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--red); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 1.5rem clamp(1.25rem, 4vw, 3rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--font-condensed);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.25);
  text-transform: uppercase;
}

/* ================================================================
   RESPONSIVE
================================================================ */
@media (max-width: 1100px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-img-wrap img { height: 380px; }

  .cta-inner {
    grid-template-columns: 1fr;
  }
  .cta-visual img { height: 380px; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  /* Navbar mobile */
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    inset: 0;
    top: var(--nav-h);
    background: rgba(0,0,0,0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 999;
  }

  .nav-links.open { transform: translateX(0); }

  .nav-links a {
    font-size: 1.5rem;
    color: var(--white);
  }

  .nav-cta {
    font-size: 1.1rem !important;
    padding: 0.75rem 2rem;
  }

  /* Products */
  .products-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  /* Features */
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-brand { grid-column: 1; }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .cta-buttons {
    flex-direction: column;
  }
  .about-stat-row {
    gap: 1rem;
  }
}