/* ============================================
   SAKUTEKI — Core Design System
   Based on Lyria by Temlis
   ============================================ */

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

ul,
ol {
  list-style: none;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

a {
  color: inherit;
}

html {
  scroll-behavior: smooth;
}

body {
  background: #0a0e1a;
  color: #ffffff;
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
  overflow-x: hidden;
}

/* ---- CSS CUSTOM PROPERTIES ---- */
:root {
  /* Colors — Lyria exact palette */
  --accent: #4d65ff;
  --bg: #0a0e1a;
  --surface: #141c2e;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);

  /* Typography */
  --font-display: 'Anton SC', 'Bebas Neue', sans-serif;
  --font-heading: 'Bricolage Grotesque', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing (8-point grid) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 8rem;
  --space-32: 12rem;

  /* Type scale (fluid) */
  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.75rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.875rem);
  --text-base: clamp(0.95rem, 0.9rem + 0.25vw, 1rem);
  --text-lg: clamp(1.1rem, 1rem + 0.5vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  --text-hero: clamp(6rem, 18vw, 27vw);
}

/* ---- SKIP LINK ---- */
.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  background: var(--accent);
  color: var(--text-primary);
  padding: 0.75rem 1.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-100%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---- CONTAINER ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
}

/* ---- SECTION LABEL ---- */
.section-label {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--text-xs);
  color: var(--accent);
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: var(--space-4);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: transparent;
  border: none;
  box-shadow: none;
  transition: background 0.4s ease;
}

.nav__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
  padding: 0 clamp(2rem, 4vw, 3.5rem);
  max-width: none;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.2em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(2rem, 3.5vw, 3rem);
}

.nav__link {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.1rem;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.2em;
  position: relative;
  overflow: hidden;
  display: inline-block;
  padding: 0.3rem 0;
  transition: color 0.3s ease;
}

/* Slide-up hover: dual-span technique */
.nav__link .nav__link-text {
  display: block;
  position: relative;
  transition: transform 0.35s cubic-bezier(0.65, 0, 0.35, 1);
}

.nav__link .nav__link-text span {
  display: block;
}

.nav__link .nav__link-text span:last-child {
  position: absolute;
  top: 100%;
  left: 0;
  color: #fff;
}

.nav__link:hover .nav__link-text {
  transform: translateY(-100%);
}

.nav__link:hover {
  color: #fff;
}

/* CTA button — accent pill like Lyria */
.nav__link--cta {
  /* No special styling — just a regular nav link */
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav__hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Mobile Menu */
.nav__mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav__mobile-menu[hidden] {
  display: none;
}

.nav__mobile-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

.nav__mobile-link {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: #E0E0E8;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  display: inline-block;
}

.nav__mobile-link .nav__link-text {
  display: block;
  position: relative;
  transition: transform 0.35s cubic-bezier(0.65, 0, 0.35, 1);
}

.nav__mobile-link .nav__link-text span {
  display: block;
}

.nav__mobile-link .nav__link-text span:last-child {
  position: absolute;
  top: 100%;
  left: 0;
  color: var(--accent);
}

.nav__mobile-link:hover .nav__link-text {
  transform: translateY(-100%);
}

.nav__mobile-link--cta {
  background: none;
  color: var(--text-primary);
  padding: 0;
  border-radius: 0;
}

.nav__mobile-link--cta .nav__link-text span:last-child {
  color: var(--text-primary);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.hero__art-zone {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  max-width: none;
  padding: 0 2vw;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 400;
  color: transparent;
  text-transform: uppercase;
  line-height: 1.1;
  letter-spacing: 0.08em;
  width: 100%;
  text-align: center;
  position: relative;
  padding-right: 0.08em;
  -webkit-text-stroke: 2.5px rgba(255, 240, 0, 0.95);
  text-shadow: none;
  filter:
    drop-shadow(0 0 8px rgba(255, 240, 0, 1))
    drop-shadow(0 0 20px rgba(255, 240, 0, 0.7))
    drop-shadow(0 0 50px rgba(255, 240, 0, 0.3))
    drop-shadow(0 0 100px rgba(255, 240, 0, 0.12));
  will-change: filter;
  animation: neonPulse 4s ease-in-out infinite;
}

/* --- Hero content below title --- */
.hero__tagline {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--text-primary);
  margin-top: var(--space-8);
  letter-spacing: 0.04em;
  font-weight: 500;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-top: var(--space-4);
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
}

.hero__ctas {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  margin-top: var(--space-8);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 500;
  min-height: 44px;
  padding: 0.75rem 1.75rem;
  border-radius: 0.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  font-size: var(--text-base);
  border: none;
}

.btn--primary {
  background: var(--accent);
  color: var(--text-primary);
}

.btn--primary:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}

.btn--secondary:hover {
  border-color: var(--text-muted);
}

.btn--outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn--outline:hover {
  background: var(--accent);
  color: var(--text-primary);
}

.btn--large {
  padding: 1rem 2.5rem;
  font-size: var(--text-lg);
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  padding: var(--space-24) 0;
  position: relative;
  overflow: hidden;
}

.about__bg-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  z-index: 0;
  filter: brightness(1.3);
}

.about::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(10, 14, 26, 0.42);
  pointer-events: none;
}

.about__fade-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 140px;
  z-index: 1;
  background: linear-gradient(to bottom, var(--bg) 0%, transparent 100%);
  pointer-events: none;
}

.about__fade-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 140px;
  z-index: 1;
  background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
  pointer-events: none;
}

.about__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.about__heading {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

.about__paragraph {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
}

.about__art-zone {
  width: 100%;
  aspect-ratio: 600 / 750;
  background: var(--surface);
  border-radius: 0.75rem;
  overflow: hidden;
}

/* ============================================
   MARQUEE
   ============================================ */
.marquee {
  overflow: hidden;
  padding: var(--space-8) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.marquee__track {
  display: flex;
  white-space: nowrap;
  animation: marqueeScroll 12s linear infinite;
}

.marquee__content {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  color: var(--text-primary);
  text-transform: uppercase;
  flex-shrink: 0;
}

@keyframes marqueeScroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ============================================
   CAPABILITIES
   ============================================ */
.capabilities {
  padding: var(--space-24) 0;
}

.capabilities__heading {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--space-12);
}

.capabilities__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.capabilities__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: var(--space-6);
  transition: all 0.2s ease;
}

.capabilities__card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.capabilities__card-number {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: var(--space-3);
}

.capabilities__card-art {
  width: 100%;
  aspect-ratio: 400 / 300;
  background: var(--bg);
  border-radius: 0.5rem;
  margin-bottom: var(--space-4);
  overflow: hidden;
}

.capabilities__card-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.capabilities__card-description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   STAT
   ============================================ */
.stat {
  padding: var(--space-32) 0;
  text-align: center;
}

.stat__numbers {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.stat__big-number {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  color: var(--text-primary);
}

.stat__arrow {
  font-size: var(--text-4xl);
  color: var(--accent);
}

.stat__bigger-number {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  color: var(--accent);
}

.stat__context {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================
   SHOWCASE
   ============================================ */
.showcase {
  padding: var(--space-24) 0;
}

.showcase__heading {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--space-12);
}

.showcase__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

.showcase__card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
  background: var(--surface);
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--border);
}

.showcase__card:nth-child(even) .showcase__card-art {
  order: 2;
}

.showcase__card:nth-child(even) .showcase__card-content {
  order: 1;
}

.showcase__card-art {
  width: 100%;
  aspect-ratio: 600 / 400;
  overflow: hidden;
}

.showcase__card-content {
  padding: var(--space-8);
}

.showcase__card-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.showcase__card-description {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

/* ============================================
   CTA
   ============================================ */
.cta {
  padding: var(--space-32) 0;
  text-align: center;
  background: var(--surface);
}

.cta__heading {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.cta__subheading {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding-top: var(--space-16);
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-12);
  align-items: start;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.footer__columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.footer__column-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.footer__column-links {
  list-style: none;
  padding: 0;
}

.footer__link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  display: block;
  padding: var(--space-1) 0;
  transition: color 0.2s ease;
}

.footer__link:hover {
  color: var(--text-primary);
}

.footer__copyright {
  padding: var(--space-8) 0;
  color: var(--text-muted);
  font-size: var(--text-xs);
  text-align: center;
  border-top: 1px solid var(--border);
  margin-top: var(--space-8);
}

/* Footer Marquee */
.footer__marquee {
  overflow: hidden;
  padding: var(--space-4) 0;
}

.footer__marquee-track {
  display: flex;
  white-space: nowrap;
  animation: footerMarquee 12s linear infinite;
}

.footer__marquee-content {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  color: rgba(255, 255, 255, 0.05);
  text-transform: uppercase;
  flex-shrink: 0;
}

@keyframes footerMarquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
:focus-visible {
  outline: 0.125rem solid var(--accent);
  outline-offset: 0.125rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   RESPONSIVE — TABLET (max-width: 991px)
   ============================================ */
@media (max-width: 991px) {
  .about__inner {
    grid-template-columns: 1fr;
  }

  .about__art {
    order: -1;
  }

  .capabilities__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase__card {
    grid-template-columns: 1fr;
  }

  .showcase__card:nth-child(even) .showcase__card-art {
    order: 0;
  }

  .showcase__card:nth-child(even) .showcase__card-content {
    order: 0;
  }
}

/* ============================================
   RESPONSIVE — MOBILE LANDSCAPE (max-width: 767px)
   ============================================ */
@media (max-width: 767px) {
  .nav__links {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .stat__numbers {
    flex-direction: column;
    gap: var(--space-4);
  }

  .stat__arrow {
    transform: rotate(90deg);
  }

  .footer__inner {
    grid-template-columns: 1fr;
  }

  .footer__columns {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================
   RESPONSIVE — MOBILE (max-width: 479px)
   ============================================ */
@media (max-width: 479px) {
  .capabilities__grid {
    grid-template-columns: 1fr;
  }

  .footer__columns {
    grid-template-columns: 1fr;
  }

  .hero__ctas {
    flex-direction: column;
    align-items: center;
  }
}