/* ============================================
   SUBSONUS — GLOBAL STYLES
   Nav, Footer, Base, Page Header, Filter Bar
   ============================================ */

/* ── VARIABLES ── */
:root {
  --black:    #0a0a0a;
  --white:    #f0ece3;
  --cream:    #d9d3c5;
  --red:      #c8301a;
  --red-dim:  #8a1f0f;
  --grey:     #1e1e1e;
  --grey-mid: #2f2f2f;
  --grey-lt:  #888070;
  --accent:   #e8b84b;

  --font-display: 'Bebas Neue', sans-serif;
  --font-body:    'Space Mono', monospace;
  --font-ui:      'Syne', sans-serif;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
a { color: inherit; text-decoration: none; }

/* ── BASE ── */
body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: default;
  padding-top: 70px;
}

/* ── PAGE TRANSITION ── */
body {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── NOISE OVERLAY ── */
/* FIX: ganti SVG noise (bikin glitch di Chrome/mobile) pakai pure CSS */
.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-image: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(255,255,255,0.015) 2px,
      rgba(255,255,255,0.015) 4px
    );
}

/* ── NAV ── */
/* FIX: hapus will-change & transform yang bikin glitch, tambah backdrop-filter */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 3rem;
  background: rgba(10,10,10,0.97);
  border-bottom: 1px solid rgba(240,236,227,0.08);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.7rem;
  letter-spacing: 0.12em;
  color: var(--white);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--grey-lt);
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--red);
  transition: width 0.3s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--white); }

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-tag {
  font-family: var(--font-body);
  font-size: 0.65rem;
  color: var(--grey-lt);
  letter-spacing: 0.15em;
}

/* ── FOOTER ── */
.footer {
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  border-top: 1px solid var(--grey-mid);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--white);
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--grey-lt);
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--white); }

.footer-copy {
  font-size: 0.65rem;
  color: var(--grey-lt);
  letter-spacing: 0.1em;
}

/* ── PAGE HEADER (shared across inner pages) ── */
.page-header {
  padding: 10rem 3rem 4rem;
  border-bottom: 1px solid var(--grey-mid);
  position: relative;
  overflow: hidden;
}

.page-header-bg {
  position: absolute;
  right: -0.05em;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: clamp(8rem, 18vw, 22rem);
  color: transparent;
  -webkit-text-stroke: 1px rgba(240,236,227,0.03);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.page-eyebrow {
  font-family: var(--font-body);
  font-size: 0.65rem;
  color: var(--red);
  letter-spacing: 0.2em;
  margin-bottom: 1rem;
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 10rem);
  line-height: 0.9;
  letter-spacing: -0.01em;
  color: var(--white);
}

/* ── FILTER BAR (shared across inner pages) ── */
.filter-bar {
  padding: 1.5rem 3rem;
  display: flex;
  gap: 1rem;
  border-bottom: 1px solid var(--grey-mid);
  flex-wrap: wrap;
  align-items: center;
}

.filter-label {
  font-family: var(--font-body);
  font-size: 0.65rem;
  color: var(--grey-lt);
  letter-spacing: 0.15em;
  margin-right: 0.5rem;
}

.filter-btn {
  background: none;
  border: 1px solid var(--grey-mid);
  color: var(--grey-lt);
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 0.4rem 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--red);
  color: var(--white);
  background: rgba(200,48,26,0.1);
}

/* ── MAIN CONTENT WRAPPER ── */
.main-grid { padding: 3rem; }

/* ── GLOBAL RESPONSIVE ── */
@media (max-width: 900px) {
  .nav { padding: 1rem 1.5rem; }
  .nav-tag { display: none; }
  .footer { padding: 2rem 1.5rem; flex-direction: column; text-align: center; }
  .page-header { padding: 7rem 1.5rem 3rem; }
  .filter-bar { padding: 1.2rem 1.5rem; }
  .main-grid { padding: 1.5rem; }
}

@media (max-width: 600px) {
  .nav-links { gap: 1.2rem; }
}

/* ── HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all 0.3s;
}

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

@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(10,10,10,0.97);
    flex-direction: column;
    padding: 1.5rem 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--grey-mid);
  }

  .nav-links.open { display: flex; }
}

html, body {
  height: auto;
  overflow-x: hidden;
}

section {
  min-height: auto;
}