/* ============================================
   NOGICE — Anti-Resonance Feet
   Aesthetic: Dark luxury, editorial, minimal
   ============================================ */

:root {
  --black: #080808;
  --dark: #111111;
  --dark-2: #1a1a1a;
  --charcoal: #222222;
  --mid: #444444;
  --light-mid: #888888;
  --light: #cccccc;
  --off-white: #f0ede8;
  --cream: #e8e3da;
  --gold: #c8a96e;
  --gold-light: #ddc48a;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'Space Mono', monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);
}

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

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

body {
  background: var(--black);
  color: var(--off-white);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  transition: background 0.4s ease, backdrop-filter 0.4s ease;
}

.nav.scrolled {
  background: rgba(8, 8, 8, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(200, 169, 110, 0.15);
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--gold);
  font-weight: 400;
}

.nav-lang {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--light-mid);
  padding: 4px 6px;
  transition: color 0.3s;
}

.lang-btn.active,
.lang-btn:hover {
  color: var(--gold);
}

.lang-sep {
  color: var(--mid);
  font-size: 11px;
}

.nav-order {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(200, 169, 110, 0.4);
  padding: 10px 24px;
  transition: all 0.3s ease;
}

.nav-order:hover {
  background: var(--gold);
  color: var(--black);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

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

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: grayscale(30%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(8,8,8,0.92) 0%,
    rgba(8,8,8,0.75) 50%,
    rgba(8,8,8,0.4) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 0 48px;
  max-width: 680px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 32px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out) 0.2s forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(72px, 9vw, 130px);
  font-weight: 300;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--off-white);
  margin-bottom: 32px;
}

.hero-title .line {
  display: block;
  opacity: 0;
  transform: translateY(40px);
  animation: fadeUp 1s var(--ease-out) forwards;
}

.hero-title .line:nth-child(1) { animation-delay: 0.3s; }
.hero-title .line:nth-child(2) { animation-delay: 0.45s; }
.hero-title .line:nth-child(3) { animation-delay: 0.6s; }

.hero-title .italic {
  font-style: italic;
  color: var(--gold-light);
}

.hero-sub {
  font-size: 15px;
  font-weight: 300;
  color: var(--light-mid);
  line-height: 1.8;
  max-width: 440px;
  margin-bottom: 48px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out) 0.8s forwards;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--off-white);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 6px;
  transition: color 0.3s, gap 0.3s;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1s forwards;
}

.hero-cta::after {
  content: '→';
  transition: transform 0.3s;
}

.hero-cta:hover {
  color: var(--gold);
  gap: 20px;
}

.hero-cta:hover::after {
  transform: translateX(4px);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--gold));
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  100% { opacity: 0; transform: scaleY(1); transform-origin: bottom; }
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   STATEMENT
   ============================================ */
.statement {
  padding: 120px 48px;
  background: var(--dark);
  border-top: 1px solid rgba(200, 169, 110, 0.1);
}

.statement-inner {
  max-width: 900px;
  margin: 0 auto;
}

.statement-text {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.5vw, 42px);
  font-weight: 300;
  line-height: 1.45;
  color: var(--off-white);
  font-style: italic;
  text-align: center;
}

/* ============================================
   PRODUCT VISUAL
   ============================================ */
.product-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 80vh;
}

.pv-left {
  position: relative;
  overflow: hidden;
}

.pv-label {
  position: absolute;
  top: 40px;
  left: 40px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
}

.pv-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
  transition: transform 0.8s var(--ease-out);
}

.pv-left:hover .pv-img {
  transform: scale(1.04);
}

.pv-right {
  background: var(--dark-2);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 72px;
  border-left: 1px solid rgba(200, 169, 110, 0.1);
}

.pv-specs {
  display: flex;
  gap: 0;
  margin-bottom: 64px;
}

.spec-item {
  flex: 1;
  padding-right: 32px;
}

.spec-num {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 300;
  color: var(--gold);
  line-height: 1;
}

.spec-unit {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--light-mid);
  margin-top: 4px;
  letter-spacing: 0.15em;
}

.spec-label {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--mid);
  margin-top: 12px;
}

.spec-divider {
  width: 1px;
  background: rgba(200, 169, 110, 0.2);
  margin: 0 32px 0 0;
  align-self: stretch;
}

.pv-desc {
  font-size: 15px;
  color: var(--light-mid);
  line-height: 1.8;
  border-left: 2px solid var(--gold);
  padding-left: 24px;
}

/* ============================================
   ENGINEERING
   ============================================ */
.engineering {
  padding: 160px 48px;
  background: var(--black);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.eng-header {
  text-align: center;
  margin-bottom: 80px;
}

.eng-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 300;
  font-style: italic;
  color: var(--off-white);
}

.eng-intro {
  max-width: 640px;
  margin: 0 auto 100px;
  text-align: center;
}

.eng-intro p {
  font-size: 16px;
  color: var(--light-mid);
  line-height: 1.8;
}

.eng-levels {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 1200px;
  margin: 0 auto;
}

.eng-level {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 520px;
  border: 1px solid rgba(200, 169, 110, 0.08);
  overflow: hidden;
  position: relative;
  transition: border-color 0.4s;
}

.eng-level:hover {
  border-color: rgba(200, 169, 110, 0.25);
}

.eng-level.reverse {
  direction: rtl;
}

.eng-level.reverse > * {
  direction: ltr;
}

.level-media {
  position: relative;
  overflow: hidden;
}

.level-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(40%) brightness(0.7);
  transition: transform 0.8s var(--ease-out), filter 0.5s;
}

.eng-level:hover .level-media img {
  transform: scale(1.06);
  filter: grayscale(20%) brightness(0.85);
}

.level-media:has(.level-pdf) {
  background: var(--dark-2);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
}

.level-media .level-pdf {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  object-position: center;
  background: transparent;
  filter: invert(1) sepia(0.55) hue-rotate(-15deg) saturate(1.4) brightness(0.95);
  transition: transform 0.8s var(--ease-out), filter 0.5s;
  mix-blend-mode: screen;
}

.eng-level:hover .level-media .level-pdf {
  transform: scale(1.03);
  filter: invert(1) sepia(0.7) hue-rotate(-15deg) saturate(1.6) brightness(1.05);
}

.level-badge {
  position: absolute;
  top: 32px;
  left: 32px;
  font-family: var(--font-display);
  font-size: 96px;
  font-weight: 300;
  color: rgba(200, 169, 110, 0.15);
  line-height: 1;
  pointer-events: none;
  transition: color 0.4s;
}

.eng-level:hover .level-badge {
  color: rgba(200, 169, 110, 0.3);
}

.level-content {
  background: var(--dark);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 72px 64px;
}

.level-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.level-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 300;
  color: var(--off-white);
  margin-bottom: 28px;
  line-height: 1.2;
}

.level-text {
  font-size: 14px;
  line-height: 1.9;
  color: var(--light-mid);
}

/* ============================================
   MATERIALS STRIP
   ============================================ */
.materials {
  background: var(--dark-2);
  padding: 80px 48px;
  border-top: 1px solid rgba(200, 169, 110, 0.1);
  border-bottom: 1px solid rgba(200, 169, 110, 0.1);
}

.mat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 48px;
  text-align: center;
}

.mat-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(200, 169, 110, 0.1);
  max-width: 1200px;
  margin: 0 auto;
}

.mat-item {
  background: var(--dark-2);
  padding: 40px 32px;
  text-align: center;
  transition: background 0.3s;
}

.mat-item:hover {
  background: var(--charcoal);
}

.mat-icon {
  font-size: 28px;
  color: var(--gold);
  margin-bottom: 20px;
  opacity: 0.7;
}

.mat-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  color: var(--off-white);
  margin-bottom: 12px;
}

.mat-desc {
  font-size: 12px;
  color: var(--light-mid);
  letter-spacing: 0.05em;
}

/* ============================================
   BENEFITS
   ============================================ */
.benefits {
  padding: 160px 48px;
  background: var(--black);
}

.benefits-header {
  text-align: center;
  margin-bottom: 80px;
}

.benefits-header h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 300;
  font-style: italic;
  color: var(--off-white);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(200, 169, 110, 0.1);
  max-width: 1200px;
  margin: 0 auto 80px;
}

.benefit-card {
  background: var(--dark);
  padding: 60px 48px;
  transition: background 0.3s;
}

.benefit-card:hover {
  background: var(--dark-2);
}

.benefit-icon {
  font-size: 24px;
  color: var(--gold);
  margin-bottom: 28px;
}

.benefit-card h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  color: var(--off-white);
  margin-bottom: 20px;
  line-height: 1.2;
}

.benefit-card p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--light-mid);
}

.benefits-statement {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding-top: 80px;
  border-top: 1px solid rgba(200, 169, 110, 0.1);
}

.benefits-statement p {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 300;
  font-style: italic;
  color: var(--light);
  line-height: 1.6;
}

/* ============================================
   COMPATIBILITY
   ============================================ */
.compat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 70vh;
}

.compat-inner {
  background: var(--dark);
  padding: 100px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.compat-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 300;
  color: var(--off-white);
  margin-bottom: 16px;
}

.compat-sub {
  font-size: 14px;
  color: var(--light-mid);
  margin-bottom: 48px;
}

.compat-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.compat-item {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--off-white);
  border: 1px solid rgba(200, 169, 110, 0.25);
  padding: 10px 20px;
  transition: all 0.3s;
}

.compat-item:hover {
  background: rgba(200, 169, 110, 0.1);
  border-color: var(--gold);
  color: var(--gold);
}

.compat-visual {
  position: relative;
  overflow: hidden;
}

.compat-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%) brightness(0.6);
  transition: transform 0.8s var(--ease-out);
}

.compat-visual:hover img {
  transform: scale(1.04);
}

/* ============================================
   ORDER
   ============================================ */
.order {
  padding: 160px 48px;
  background: var(--charcoal);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.order::before {
  content: 'NOGICE';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: 320px;
  font-weight: 300;
  color: rgba(200, 169, 110, 0.04);
  letter-spacing: -0.05em;
  pointer-events: none;
  white-space: nowrap;
}

.order-inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.order-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 300;
  font-style: italic;
  color: var(--off-white);
  margin-bottom: 24px;
}

.order-inner p {
  font-size: 15px;
  color: var(--light-mid);
  margin-bottom: 56px;
  line-height: 1.8;
}

.order-actions {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  justify-content: center;
}

.order-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
  min-width: 220px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  background: var(--gold);
  color: var(--black);
  padding: 20px 36px;
  text-decoration: none;
  transition: all 0.35s var(--ease-out);
  border: 1px solid var(--gold);
  box-sizing: border-box;
}

.order-btn:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
}

.order-btn--viber {
  background: transparent;
  color: var(--gold);
}

.order-btn--viber:hover {
  background: var(--gold);
  color: var(--black);
}

.btn-icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}

.btn-arrow {
  font-size: 18px;
  transition: transform 0.3s;
}

.order-btn:hover .btn-arrow {
  transform: translateX(4px);
}

@media (max-width: 540px) {
  .order-actions {
    grid-template-columns: 1fr;
    width: 100%;
    max-width: 320px;
  }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--black);
  padding: 60px 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  border-top: 1px solid rgba(200, 169, 110, 0.1);
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.4em;
  color: var(--gold);
}

.footer-tagline {
  font-family: var(--font-display);
  font-size: 18px;
  font-style: italic;
  color: var(--light-mid);
}

.footer-copy {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mid);
  font-family: var(--font-mono);
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .nav { padding: 20px 32px; }
  .product-visual { grid-template-columns: 1fr; }
  .pv-left { height: 60vw; }
  .pv-right { padding: 60px 40px; }
  .compat { grid-template-columns: 1fr; }
  .compat-visual { height: 50vw; }
  .mat-items { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .nav-order { display: none; }
  .hero-content { padding: 0 24px; }
  .statement { padding: 80px 24px; }
  .engineering { padding: 100px 24px; }
  .eng-level { grid-template-columns: 1fr; }
  .eng-level.reverse { direction: ltr; }
  .level-media { height: 55vw; }
  .level-media:has(.level-pdf) {
    height: auto;
    aspect-ratio: 1191 / 842;
    padding: 24px;
  }
  .level-media:has(.level-pdf) .level-pdf { object-fit: contain; }
  .level-content { padding: 48px 32px; }
  .benefits { padding: 100px 24px; }
  .benefits-grid { grid-template-columns: 1fr; }
  .materials { padding: 60px 24px; }
  .mat-items { grid-template-columns: 1fr 1fr; }
  .compat-inner { padding: 60px 32px; }
  .order { padding: 100px 24px; }
  .footer { padding: 40px 24px; }
  .pv-specs { flex-direction: column; gap: 32px; }
  .spec-divider { width: 40px; height: 1px; }
}