/* ═══════════════════════════════════════════════════════════════
   MINH CHÂU TÁI KHỞI — Cựu Mộng Tái Hiện
   ═══════════════════════════════════════════════════════════════ */

:root {
  --ink:        #0a0c10;
  --ink-2:      #0e1118;
  --charcoal:   #141822;
  --charcoal-2: #1a1f2c;
  --parchment:  #e9dfc8;
  --parchment-dim: #b8ad93;
  --muted:      #8a8577;
  --gold:       #c9a24b;
  --gold-bright:#eac879;
  --gold-dim:   #8a6f33;
  --jade:       #3fae7c;
  --jade-glow:  #5ee0a8;
  --crimson:    #a03a40;
  --crimson-deep:#6e2429;
  --wei-blue:   #4a6fa5;
  --line:       rgba(201, 162, 75, 0.18);

  --font-display: "Trirong", "Times New Roman", Georgia, serif;
  --font-body: "Be Vietnam Pro", "Segoe UI", -apple-system, sans-serif;
  --font-han: "Noto Serif TC", "Songti TC", serif;

  --nav-h: 72px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Khung "nẹp đồng" 4 góc (border-image 9-slice) */
  --frame-img: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 96 96'%3E%3Cg fill='none' stroke='%23c9a24b'%3E%3Cg id='c'%3E%3Cpath d='M4 30 L4 8 Q4 4 8 4 L30 4' stroke-width='2.5' opacity='0.75'/%3E%3Cpath d='M12 28 L12 12 L28 12' stroke-width='1' opacity='0.45'/%3E%3Crect x='16.5' y='16.5' width='4' height='4' fill='%23c9a24b' stroke='none' opacity='0.55'/%3E%3C/g%3E%3Cuse href='%23c' transform='rotate(90 48 48)'/%3E%3Cuse href='%23c' transform='rotate(180 48 48)'/%3E%3Cuse href='%23c' transform='rotate(270 48 48)'/%3E%3Cpath d='M30 4 H66 M30 92 H66 M4 30 V66 M92 30 V66' stroke-width='1' opacity='0.28'/%3E%3C/g%3E%3C/svg%3E");

  /* Dải hồi văn (sóng vuông) cho divider */
  --meander-img: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M0 7 H3 V1 H9 V7 H12' fill='none' stroke='%238a6f33' stroke-width='1.2'/%3E%3C/svg%3E");
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--parchment);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container {
  width: min(1180px, 100% - 48px);
  margin-inline: auto;
}

::selection { background: var(--gold-dim); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ── Buttons ─────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.13em;
  padding: 0.85em 1.9em;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out),
              background-color 0.35s, border-color 0.35s, color 0.35s;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.btn--gold {
  background: linear-gradient(160deg, var(--gold-bright) 0%, var(--gold) 45%, #a37f34 100%);
  color: #1d1508;
  text-shadow: 0 1px 0 rgba(255, 235, 190, 0.4);
  box-shadow: 0 0 0 1px rgba(234, 200, 121, 0.35), 0 6px 24px -6px rgba(201, 162, 75, 0.45);
}
.btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(234, 200, 121, 0.6), 0 10px 34px -6px rgba(201, 162, 75, 0.65);
  background: linear-gradient(160deg, #f4d88f 0%, var(--gold-bright) 45%, var(--gold) 100%);
}

/* Viền ghost vẽ bằng 2 lớp nền để chạy theo cả cạnh vát (border thường bị clip-path cắt cụt ở góc) */
.btn--ghost {
  border: none;
  color: var(--parchment);
  background: transparent;
  backdrop-filter: blur(2px);
  position: relative;
  isolation: isolate;
}
.btn--ghost::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(233, 223, 200, 0.35);
  transition: background-color 0.35s;
  z-index: -2;
}
.btn--ghost::after {
  content: "";
  position: absolute;
  inset: 1px;
  background: rgba(10, 12, 16, 0.82);
  clip-path: polygon(9.6px 0, 100% 0, 100% calc(100% - 9.6px), calc(100% - 9.6px) 100%, 0 100%, 0 9.6px);
  z-index: -1;
}
.btn--ghost:hover {
  color: var(--gold-bright);
  transform: translateY(-2px);
}
.btn--ghost:hover::before { background: var(--gold); }

.btn--lg { font-size: 0.9rem; padding: 1.05em 2.3em; }
.btn--xl { font-size: 1rem;  padding: 1.15em 2.8em; }

/* Nút "sắp mở" — nhìn được nhưng chưa bấm được */
.btn--soon {
  flex-direction: column;
  gap: 3px;
  cursor: not-allowed;
  user-select: none;
}
.btn--soon small {
  font-size: 0.56rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--jade-glow);
}
.btn--soon:hover { transform: none; color: var(--parchment); }
.btn--soon:hover::before { background: rgba(233, 223, 200, 0.35); }

/* ── Navigation ──────────────────────────────────────────── */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background-color 0.4s, border-color 0.4s, backdrop-filter 0.4s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(10, 12, 16, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.nav__inner {
  width: min(1320px, 100% - 48px);
  margin-inline: auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
}
.nav__emblem {
  width: 34px; height: 34px;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(94, 224, 168, 0.35);
}
.nav__brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  color: var(--parchment);
}
.nav__brand-text em {
  font-style: normal;
  color: var(--gold-bright);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav__link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--parchment-dim);
  padding: 8px 14px;
  position: relative;
  transition: color 0.3s;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}
.nav__link:hover, .nav__link.is-active { color: var(--gold-bright); }
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); }

.btn--nav { font-size: 0.72rem; padding: 0.8em 1.5em; }
.btn--nav-mobile { display: none; }

.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  background: none;
  border: 1px solid var(--line);
  cursor: pointer;
  padding: 0 10px;
}
.nav__burger span {
  display: block;
  height: 1.5px;
  background: var(--gold-bright);
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Hero ────────────────────────────────────────────────── */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}

.hero__sky {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 90% 60% at 50% 108%, rgba(201, 162, 75, 0.14) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 50% 115%, rgba(160, 58, 64, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 120% 80% at 50% -20%, #131a2b 0%, var(--ink) 70%);
  z-index: -6;
}

.hero__stars {
  position: absolute; inset: 0;
  z-index: -5;
  background-image:
    radial-gradient(1px 1px at 12% 18%, rgba(233,223,200,0.7) 50%, transparent 51%),
    radial-gradient(1px 1px at 28% 8%,  rgba(233,223,200,0.5) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 41% 22%, rgba(233,223,200,0.6) 50%, transparent 51%),
    radial-gradient(1px 1px at 57% 12%, rgba(233,223,200,0.45) 50%, transparent 51%),
    radial-gradient(1px 1px at 66% 26%, rgba(233,223,200,0.6) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 78% 9%,  rgba(233,223,200,0.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 88% 20%, rgba(233,223,200,0.65) 50%, transparent 51%),
    radial-gradient(1px 1px at 8% 35%,  rgba(233,223,200,0.4) 50%, transparent 51%),
    radial-gradient(1px 1px at 93% 33%, rgba(233,223,200,0.4) 50%, transparent 51%);
  animation: starTwinkle 7s ease-in-out infinite alternate;
}
@keyframes starTwinkle {
  from { opacity: 0.55; }
  to   { opacity: 1; }
}

.hero__mountains {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  width: 100%;
  height: 42vh;
  z-index: -4;
  will-change: transform;
}
.hero__mountains--far  { color: #10141d; height: 48vh; opacity: 0.9; }
.hero__mountains--near { color: #0b0e14; height: 34vh; z-index: -3; }

.hero__wall {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  width: 100%;
  height: 15vh;
  color: #06080b;
  z-index: -2;
  will-change: transform;
}

.hero__fog {
  position: absolute;
  z-index: -2;
  width: 130vw;
  height: 34vh;
  bottom: -6vh;
  border-radius: 50%;
  filter: blur(46px);
  will-change: transform;
  pointer-events: none;
}
.hero__fog--1 {
  left: -30vw;
  background: radial-gradient(ellipse at center, rgba(160, 165, 180, 0.10) 0%, transparent 65%);
  animation: fogDrift1 26s ease-in-out infinite alternate;
}
.hero__fog--2 {
  right: -35vw;
  bottom: -10vh;
  background: radial-gradient(ellipse at center, rgba(201, 162, 75, 0.07) 0%, transparent 65%);
  animation: fogDrift2 34s ease-in-out infinite alternate;
}
@keyframes fogDrift1 { from { transform: translateX(0); }     to { transform: translateX(9vw); } }
@keyframes fogDrift2 { from { transform: translateX(0); }     to { transform: translateX(-11vw); } }

.hero__particles {
  position: absolute; inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

.hero__vignette {
  position: absolute; inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 75% 70% at 50% 45%, transparent 55%, rgba(6, 7, 10, 0.55) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: calc(var(--nav-h) + 32px) 24px 80px;
  max-width: 860px;
}

.hero__emblem {
  width: clamp(96px, 13vw, 150px);
  height: auto;
  margin: 0 auto 26px;
  border-radius: 50%;
  filter: drop-shadow(0 0 28px rgba(94, 224, 168, 0.4)) drop-shadow(0 0 60px rgba(201, 162, 75, 0.25));
  animation: emblemBreathe 5s ease-in-out infinite;
}
@keyframes emblemBreathe {
  0%, 100% { filter: drop-shadow(0 0 22px rgba(94, 224, 168, 0.32)) drop-shadow(0 0 50px rgba(201, 162, 75, 0.2)); transform: translateY(0); }
  50%      { filter: drop-shadow(0 0 34px rgba(94, 224, 168, 0.5))  drop-shadow(0 0 70px rgba(201, 162, 75, 0.32)); transform: translateY(-6px); }
}

.hero__kicker {
  font-size: clamp(0.66rem, 1.2vw, 0.78rem);
  font-weight: 500;
  letter-spacing: 0.42em;
  color: var(--parchment-dim);
  margin-bottom: 18px;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.7rem, 7.8vw, 5.6rem);
  line-height: 1.04;
  letter-spacing: 0.045em;
  color: var(--parchment);
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.6);
}
.hero__title span {
  background: linear-gradient(175deg, #f6e3ae 15%, var(--gold-bright) 40%, var(--gold) 65%, #96742e 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 3px 22px rgba(201, 162, 75, 0.35));
}

.hero__tagline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1rem, 2.4vw, 1.5rem);
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  color: var(--jade-glow);
  margin-top: 18px;
  text-shadow: 0 0 20px rgba(94, 224, 168, 0.45);
}

.hero__lede {
  margin: 30px auto 0;
  max-width: 460px;
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
  color: var(--parchment-dim);
  line-height: 1.9;
}
.hero__lede strong {
  color: var(--parchment);
  font-weight: 500;
}

.hero__cta {
  margin-top: 40px;
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0.7;
  transition: opacity 0.3s;
}
.hero__scroll:hover { opacity: 1; }
.hero__scroll-line {
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, transparent, var(--gold));
  animation: scrollPulse 2.2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(0.6); transform-origin: top; opacity: 0.5; }
  50%      { transform: scaleY(1);   transform-origin: top; opacity: 1; }
}
.hero__scroll-text {
  font-size: 0.6rem;
  letter-spacing: 0.34em;
  color: var(--parchment-dim);
}

/* ── Sections (shared) ───────────────────────────────────── */

.section { padding: clamp(84px, 12vh, 140px) 0; position: relative; }

.section__head {
  text-align: center;
  margin-bottom: clamp(48px, 7vw, 76px);
}
.section__kicker {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.4em;
  color: var(--gold-dim);
  margin-bottom: 16px;
}
.section__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4.6vw, 3.1rem);
  letter-spacing: 0.08em;
  line-height: 1.15;
  color: var(--parchment);
}
.section__sub {
  margin: 22px auto 0;
  max-width: 640px;
  color: var(--parchment-dim);
  font-size: clamp(0.92rem, 1.5vw, 1.02rem);
}

.ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 22px;
}
.ornament span {
  width: clamp(60px, 10vw, 120px);
  height: 8px;
  background-image: var(--meander-img);
  background-size: 12px 8px;
  background-repeat: repeat-x;
  -webkit-mask-image: linear-gradient(to var(--dir, right), transparent, #000 45%);
  mask-image: linear-gradient(to var(--dir, right), transparent, #000 45%);
}
.ornament span:first-child { --dir: right; }
.ornament span:last-child  { --dir: left; }
.ornament i {
  font-style: normal;
  color: var(--gold);
  font-size: 0.6rem;
}

/* ── Ấn triện ────────────────────────────────────────────── */

.seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-han);
  font-weight: 600;
  line-height: 1;
  writing-mode: vertical-rl;
  letter-spacing: 0.08em;
  background: linear-gradient(160deg, #a83b41 0%, #7c272c 70%, #641f23 100%);
  color: #f2e3cf;
  border-radius: 3px;
  box-shadow:
    inset 0 0 0 1.5px rgba(242, 227, 207, 0.5),
    inset 0 0 10px rgba(0, 0, 0, 0.4),
    0 2px 12px rgba(0, 0, 0, 0.5);
  transform: rotate(4deg);
  user-select: none;
}
.seal--hero {
  width: 44px;
  height: 44px;
  font-size: 16px;
  margin-left: 16px;
  vertical-align: middle;
}
.seal--sm {
  width: 36px;
  height: 36px;
  font-size: 13px;
}
.seal--footer {
  width: 42px;
  height: 42px;
  font-size: 15px;
  margin-left: 10px;
}

.br-desktop { display: inline; }

/* ── Game intro ──────────────────────────────────────────── */

.game {
  background:
    radial-gradient(ellipse 60% 45% at 18% 30%, rgba(63, 174, 124, 0.05) 0%, transparent 60%),
    linear-gradient(to bottom, #06080b, var(--ink) 18%, var(--ink-2));
}

.game__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.game__quote {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
  line-height: 1.45;
  color: var(--parchment);
  border-left: 2px solid var(--gold);
  padding-left: 24px;
  margin-bottom: 28px;
}
.game__quote em {
  font-style: italic;
  color: var(--gold-bright);
}
.game__copy p:not(.game__quote) {
  color: var(--parchment-dim);
  margin-bottom: 18px;
  max-width: 54ch;
}
.game__copy .btn { margin-top: 14px; }

.game__pillars {
  display: grid;
  gap: 18px;
}
.game__pillars li {
  position: relative;
  display: flex;
  gap: 20px;
  padding: 30px 32px;
  background: linear-gradient(150deg, var(--charcoal) 0%, var(--ink-2) 100%);
  border: 1px solid var(--line);
  transition: border-color 0.4s, transform 0.4s var(--ease-out);
}
.game__pillars li:hover {
  border-color: rgba(201, 162, 75, 0.45);
  transform: translateX(6px);
}
.game__pillar-icon {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--gold);
  margin-top: 4px;
}
.game__pillars h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  color: var(--gold-bright);
  margin-bottom: 6px;
}
.game__pillars p {
  font-size: 0.92rem;
  color: var(--parchment-dim);
}

/* ── Nostalgia ───────────────────────────────────────────── */

.nostalgia {
  background:
    radial-gradient(ellipse 70% 50% at 80% 15%, rgba(160, 58, 64, 0.06) 0%, transparent 60%),
    var(--ink-2);
  overflow: hidden;
}

.grain {
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.compare {
  position: relative;
  z-index: 1;
  max-width: 940px;
  margin-inline: auto;
}
.compare__frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(201, 162, 75, 0.3);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.8), 0 0 60px -20px rgba(201, 162, 75, 0.15);
  cursor: ew-resize;
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;
}
.compare__img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.compare__img--new {
  filter: saturate(1.25) contrast(1.08) brightness(1.02);
}
.compare__old-wrap {
  position: absolute; inset: 0;
  width: 50%;
  overflow: hidden;
}
.compare__old-wrap .compare__img--old {
  width: 100vw;
  max-width: none;
  filter: sepia(0.55) saturate(0.45) contrast(0.92) brightness(0.78);
}
.compare__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 22px solid transparent;
  border-image: var(--frame-img) 33 / 22px;
  pointer-events: none;
  z-index: 4;
  opacity: 0.9;
}
.compare__scanlines {
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(to bottom, rgba(0,0,0,0.22) 0px, rgba(0,0,0,0.22) 1px, transparent 1px, transparent 3px),
    radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.5) 100%);
}
.compare__handle {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 40px;
  margin-left: -20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: ew-resize;
  z-index: 3;
}
.compare__handle-line {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 1.5px;
  margin-left: -0.75px;
  background: var(--gold-bright);
  box-shadow: 0 0 14px rgba(234, 200, 121, 0.7);
}
.compare__handle-knob {
  position: relative;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--ink);
  border: 1.5px solid var(--gold-bright);
  color: var(--gold-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.6);
}
.compare__label {
  position: absolute;
  top: 16px;
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  padding: 6px 14px;
  background: rgba(10, 12, 16, 0.75);
  backdrop-filter: blur(4px);
  z-index: 2;
  pointer-events: none;
}
.compare__label--old { left: 16px;  color: var(--parchment-dim); border: 1px solid rgba(233,223,200,0.2); }
.compare__label--new { right: 16px; color: var(--jade-glow); border: 1px solid rgba(94,224,168,0.3); }
.compare__hint {
  text-align: center;
  margin-top: 18px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.nostalgia__lines {
  position: relative;
  z-index: 1;
  margin-top: clamp(56px, 8vw, 90px);
  text-align: center;
  display: grid;
  gap: 14px;
}
.nostalgia__lines p {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 500;
  font-style: italic;
  color: var(--parchment-dim);
}
.nostalgia__lines p:nth-child(2) { color: var(--parchment); }

/* ── Factions ────────────────────────────────────────────── */

.factions {
  background: linear-gradient(to bottom, var(--ink-2), var(--ink) 30%);
}

.factions__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(36px, 4.5vw, 64px);
}

/* Khung nẹp đồng dùng chung cho card */
.feature::before,
.community__card::before,
.game__pillars li::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 24px solid transparent;
  border-image: var(--frame-img) 33 / 24px;
  pointer-events: none;
  opacity: 0.75;
  transition: opacity 0.45s;
}
.feature:hover::before,
.community__card:hover::before,
.game__pillars li:hover::before { opacity: 1; }

/* Cờ hiệu Tam Quốc — cờ dọc đuôi én nhọn hướng xuống */

.faction {
  --accent: var(--gold);
  --accent-soft: rgba(201, 162, 75, 0.12);
  /* đuôi cờ nhọn hướng xuống: một mũi chữ V ở giữa đáy */
  --flag-clip: polygon(0 0, 100% 0, 100% calc(100% - 62px), 50% 100%, 0 calc(100% - 62px));
  position: relative;
  display: flex;
  flex-direction: column;
}

.faction__pole {
  display: block;
  position: relative;
  height: 13px;
  margin: 0 -12px;
  background: linear-gradient(to bottom, #4a3c22 0%, #2c2313 55%, #1a1509 100%);
  border-radius: 7px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(201, 162, 75, 0.35);
  z-index: 2;
}
.faction__pole::before,
.faction__pole::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 19px; height: 19px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 32%, var(--gold-bright) 0%, var(--gold) 45%, #6e5526 100%);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}
.faction__pole::before { left: -7px; }
.faction__pole::after  { right: -7px; }

.faction__flag {
  flex: 1;
  display: flex;
  padding: 1.5px 1.5px 2.5px;
  margin-top: -2px;
  background: linear-gradient(to bottom, rgba(201, 162, 75, 0.75) 0%, rgba(201, 162, 75, 0.4) 55%, rgba(138, 111, 51, 0.55) 100%);
  clip-path: var(--flag-clip);
  transform-origin: 50% 0;
  transition: filter 0.6s;
  animation: flagSway 7s ease-in-out infinite;
}
.faction:nth-child(2) .faction__flag { animation-delay: -2.4s; }
.faction:nth-child(3) .faction__flag { animation-delay: -4.8s; }
.faction:hover .faction__flag {
  filter: drop-shadow(0 18px 30px rgba(0, 0, 0, 0.55));
}
@keyframes flagSway {
  0%, 100% { transform: rotate(-0.55deg); }
  50%      { transform: rotate(0.7deg); }
}

.faction__cloth {
  flex: 1;
  width: 100%;
  min-height: 470px;
  padding: 34px 26px 92px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  clip-path: var(--flag-clip);
  background:
    radial-gradient(ellipse 130% 55% at 50% -8%, var(--accent-soft) 0%, transparent 62%),
    linear-gradient(172deg, var(--charcoal-2) 0%, var(--ink-2) 52%, #07090d 100%);
}
/* vân vải: sọc dọc rất nhạt */
.faction__cloth {
  background-image:
    repeating-linear-gradient(to right, rgba(233, 223, 200, 0.022) 0 1px, transparent 1px 7px),
    radial-gradient(ellipse 130% 55% at 50% -8%, var(--accent-soft) 0%, transparent 62%),
    linear-gradient(172deg, var(--charcoal-2) 0%, var(--ink-2) 52%, #07090d 100%);
}

.faction--wei { --accent: var(--wei-blue);  --accent-soft: rgba(74, 111, 165, 0.2); }
.faction--shu { --accent: var(--jade);      --accent-soft: rgba(63, 174, 124, 0.17); }
.faction--wu  { --accent: var(--crimson);   --accent-soft: rgba(160, 58, 64, 0.2); }

.faction__icon {
  display: block;
  font-size: 1.7rem;
  margin-bottom: 18px;
  filter: grayscale(0.25);
  transition: filter 0.4s, transform 0.4s var(--ease-out);
}
.faction:hover .faction__icon { filter: grayscale(0); transform: scale(1.12); }

.faction__han {
  display: block;
  font-family: var(--font-han);
  font-weight: 900;
  font-size: clamp(6.4rem, 8.5vw, 8.2rem);
  line-height: 1;
  color: var(--accent);
  filter: brightness(1.25);
  text-shadow: 0 0 34px var(--accent-soft), 0 0 70px var(--accent-soft), 0 3px 14px rgba(0, 0, 0, 0.6);
  margin-bottom: 22px;
  transition: transform 0.6s var(--ease-out), filter 0.5s;
  pointer-events: none;
}
.faction:hover .faction__han {
  transform: scale(1.05);
  filter: brightness(1.45);
}

.faction__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.8rem;
  letter-spacing: 0.24em;
  text-indent: 0.24em;
  color: var(--parchment);
  margin-bottom: 8px;
}
.faction__motto {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--accent);
  filter: brightness(1.4);
  margin-bottom: 13px;
}
.faction__desc {
  font-size: 0.88rem;
  color: var(--parchment-dim);
  max-width: 26ch;
  margin-inline: auto;
}

.factions__cta {
  text-align: center;
  margin-top: clamp(48px, 6vw, 70px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.8vw, 1.9rem);
  letter-spacing: 0.24em;
  color: var(--gold-bright);
  text-shadow: 0 0 30px rgba(201, 162, 75, 0.35);
}

/* ── Features ────────────────────────────────────────────── */

.features {
  background:
    radial-gradient(ellipse 60% 40% at 85% 80%, rgba(63, 174, 124, 0.04) 0%, transparent 60%),
    var(--ink);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 24px);
}

.feature {
  padding: 36px 32px;
  background: linear-gradient(160deg, var(--charcoal) 0%, var(--ink-2) 100%);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  transition: transform 0.45s var(--ease-out), border-color 0.45s;
}
.feature:hover { transform: translateY(-6px); border-color: rgba(201, 162, 75, 0.4); }

.feature__icon {
  display: inline-block;
  font-size: 1.9rem;
  margin-bottom: 16px;
}
.feature h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.14em;
  color: var(--gold-bright);
  margin-bottom: 10px;
}
.feature p {
  font-size: 0.9rem;
  color: var(--parchment-dim);
}

/* ── Revival timeline ────────────────────────────────────── */

.revival {
  background: linear-gradient(to bottom, var(--ink), var(--ink-2) 40%, var(--ink));
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  counter-reset: step;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 27px;
  left: 6%; right: 6%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold-dim) 15%, var(--gold-dim) 85%, transparent);
}
/* vạch tiến độ: đã đi tới bước 3 */
.timeline::after {
  content: "";
  position: absolute;
  top: 26.5px;
  left: 12.5%;
  width: 50%;
  height: 2px;
  background: linear-gradient(to right, var(--gold-dim), var(--gold-bright));
  box-shadow: 0 0 12px rgba(201, 162, 75, 0.45);
}

.timeline__step {
  position: relative;
  text-align: center;
  padding-top: 70px;
}
.timeline__num {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 54px; height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--gold-bright);
  background: var(--ink);
  border: 1px solid var(--gold-dim);
  border-radius: 50%;
  box-shadow:
    inset 0 0 0 3px var(--ink), inset 0 0 0 4px rgba(201, 162, 75, 0.45),
    0 0 0 6px var(--ink), 0 0 24px rgba(201, 162, 75, 0.2);
  transition: border-color 0.4s, box-shadow 0.4s, color 0.4s;
}
.timeline__step:hover .timeline__num {
  border-color: var(--gold-bright);
  color: #f4d88f;
  box-shadow:
    inset 0 0 0 3px var(--ink), inset 0 0 0 4px rgba(234, 200, 121, 0.7),
    0 0 0 6px var(--ink), 0 0 34px rgba(201, 162, 75, 0.5);
}
/* Bước đã hoàn thành */
.timeline__step--done .timeline__num {
  background: linear-gradient(160deg, var(--gold-bright) 0%, var(--gold) 55%, #a37f34 100%);
  color: #1d1508;
  border-color: var(--gold-bright);
  font-size: 1.3rem;
}

/* Bước đang diễn ra */
.timeline__step--active .timeline__num {
  border-color: var(--gold-bright);
  color: #f4d88f;
  animation: stepPulse 2.6s ease-in-out infinite;
}
@keyframes stepPulse {
  0%, 100% {
    box-shadow:
      inset 0 0 0 3px var(--ink), inset 0 0 0 4px rgba(234, 200, 121, 0.7),
      0 0 0 6px var(--ink), 0 0 22px rgba(201, 162, 75, 0.35);
  }
  50% {
    box-shadow:
      inset 0 0 0 3px var(--ink), inset 0 0 0 4px rgba(234, 200, 121, 0.9),
      0 0 0 6px var(--ink), 0 0 42px rgba(234, 200, 121, 0.65);
  }
}
.timeline__badge {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-indent: 0.26em;
  color: var(--jade-glow);
  border: 1px solid rgba(94, 224, 168, 0.45);
  background: rgba(63, 174, 124, 0.08);
  padding: 4px 10px;
  margin-bottom: 10px;
  box-shadow: 0 0 16px rgba(94, 224, 168, 0.15);
}
.timeline__step--active h3 { color: var(--gold-bright); }

/* Bước chưa tới */
.timeline__step--next { opacity: 0.55; }

.timeline__step h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.2em;
  color: var(--parchment);
  margin-bottom: 8px;
}
.timeline__step p {
  font-size: 0.88rem;
  color: var(--parchment-dim);
  max-width: 24ch;
  margin-inline: auto;
}

/* ── Community ───────────────────────────────────────────── */

.community {
  background:
    radial-gradient(ellipse 50% 40% at 15% 85%, rgba(201, 162, 75, 0.05) 0%, transparent 60%),
    var(--ink);
}

.community__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(18px, 2.5vw, 28px);
  max-width: 940px;
  margin-inline: auto;
}

.community__card {
  display: block;
  padding: 44px 38px;
  background: linear-gradient(160deg, var(--charcoal-2) 0%, var(--ink-2) 100%);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  transition: transform 0.45s var(--ease-out), border-color 0.45s, box-shadow 0.45s;
}
.community__card:hover {
  transform: translateY(-8px);
  border-color: rgba(201, 162, 75, 0.5);
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.9), 0 0 44px -18px rgba(201, 162, 75, 0.35);
}
.community__icon {
  display: inline-block;
  font-size: 2.2rem;
  margin-bottom: 18px;
}
.community__card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  color: var(--parchment);
  margin-bottom: 12px;
}
.community__card p {
  font-size: 0.92rem;
  color: var(--parchment-dim);
  margin-bottom: 24px;
}
.community__go {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold-bright);
  transition: letter-spacing 0.35s var(--ease-out);
}
.community__card:hover .community__go { letter-spacing: 0.28em; }

/* ── Final CTA ───────────────────────────────────────────── */

.cta-final {
  position: relative;
  padding: clamp(110px, 16vh, 180px) 0;
  overflow: hidden;
  isolation: isolate;
  text-align: center;
}
.cta-final__bg {
  position: absolute; inset: 0;
  z-index: -2;
  background-image: url("../assets/banner.webp");
  background-size: cover;
  background-position: center 30%;
  filter: saturate(0.75) brightness(0.42);
  transform: scale(1.05);
}
.cta-final__vignette {
  position: absolute; inset: 0;
  z-index: -1;
  background:
    linear-gradient(to bottom, var(--ink) 0%, rgba(10, 12, 16, 0.45) 22%, rgba(10, 12, 16, 0.45) 78%, var(--ink) 100%),
    radial-gradient(ellipse 70% 65% at 50% 50%, transparent 40%, rgba(6, 7, 10, 0.7) 100%);
}

.cta-final__emblem {
  width: 96px;
  margin: 0 auto 28px;
  border-radius: 50%;
  filter: drop-shadow(0 0 26px rgba(94, 224, 168, 0.45));
}
.cta-final__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5.4vw, 3.6rem);
  letter-spacing: 0.08em;
  line-height: 1.18;
  color: var(--parchment);
  text-shadow: 0 4px 40px rgba(0, 0, 0, 0.8);
  margin-bottom: 30px;
}
.cta-final__text {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.02rem, 2vw, 1.3rem);
  color: var(--parchment-dim);
  line-height: 1.9;
}
.cta-final__text--em {
  margin-top: 20px;
  font-weight: 600;
  font-style: normal;
  color: var(--gold-bright);
  letter-spacing: 0.1em;
}
.cta-final .btn--xl { margin-top: 44px; }

/* ── Footer ──────────────────────────────────────────────── */

.footer {
  background: #06080b;
  border-top: 1px solid var(--line);
  padding: 56px 0 36px;
}
.footer__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(201, 162, 75, 0.1);
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 16px;
}
.footer__brand img { border-radius: 50%; }
.footer__name {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--parchment);
}
.footer__tag {
  font-size: 0.68rem;
  letter-spacing: 0.32em;
  color: var(--gold-dim);
}
.footer__links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.footer__links a {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--parchment-dim);
  transition: color 0.3s;
}
.footer__links a:hover { color: var(--gold-bright); }

.footer__bottom {
  padding-top: 28px;
  display: grid;
  gap: 10px;
}
.footer__bottom p {
  font-size: 0.78rem;
  color: var(--muted);
}
.footer__disclaimer {
  max-width: 72ch;
  line-height: 1.7;
}

/* ── Reveal animations ───────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 1024px) {
  .factions__grid { grid-template-columns: repeat(3, 1fr); }
  .faction { --flag-clip: polygon(0 0, 100% 0, 100% calc(100% - 48px), 50% 100%, 0 calc(100% - 48px)); }
  .faction__cloth { min-height: 420px; padding: 28px 18px 76px; }
  .faction__han { font-size: 5.6rem; }
  .faction__name { font-size: 1.5rem; }
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .game__grid { grid-template-columns: 1fr; }
  .nav__inner { gap: 16px; }
  .nav__brand-text { font-size: 0.92rem; }
  .nav__link { padding: 8px 8px; font-size: 0.72rem; letter-spacing: 0.08em; }
  .nav__link::after { left: 8px; right: 8px; }
  .btn--nav { font-size: 0.64rem; padding: 0.75em 1.1em; letter-spacing: 0.1em; }
}

@media (max-width: 860px) {
  .btn--nav { display: none; }
}

@media (max-width: 860px) {
  .nav__burger { display: flex; }
  .nav__links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 24px 28px;
    background: rgba(8, 10, 14, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s var(--ease-out), opacity 0.35s, visibility 0.35s;
  }
  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav__link {
    padding: 16px 4px;
    font-size: 0.92rem;
    border-bottom: 1px solid rgba(201, 162, 75, 0.08);
  }
  .nav__link::after { display: none; }
  .btn--nav-mobile {
    display: inline-flex;
    margin-top: 20px;
    justify-content: center;
  }
  .nav.is-scrolled, .nav:has(.nav__links.is-open) {
    background: rgba(10, 12, 16, 0.92);
    backdrop-filter: blur(14px);
  }

  /* Cờ xoay ngang trên mobile: thanh treo dọc bên trái, đuôi én nhọn sang phải */
  .factions__grid { grid-template-columns: 1fr; gap: 38px; }
  .faction {
    /* mobile: cờ ngang, mũi nhọn chĩa sang phải */
    --flag-clip: polygon(0 0, calc(100% - 44px) 0, 100% 50%, calc(100% - 44px) 100%, 0 100%);
    display: flex;
    align-items: stretch;
  }
  .faction__pole {
    height: auto;
    width: 13px;
    margin: -5px 0;
    background: linear-gradient(to right, #4a3c22 0%, #2c2313 55%, #1a1509 100%);
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.7), inset 1px 0 0 rgba(201, 162, 75, 0.35);
    flex: 0 0 auto;
  }
  .faction__pole::before,
  .faction__pole::after {
    top: auto;
    transform: translateX(-50%);
    left: 50%; right: auto;
  }
  .faction__pole::before { top: -7px; }
  .faction__pole::after  { bottom: -7px; top: auto; }
  .faction__flag {
    flex: 1;
    margin-top: 0;
    margin-left: -2px;
    padding: 1.5px 2.5px 1.5px 1.5px;
    background: linear-gradient(to right, rgba(201, 162, 75, 0.75) 0%, rgba(201, 162, 75, 0.4) 55%, rgba(138, 111, 51, 0.55) 100%);
    transform-origin: 0 50%;
  }
  .faction__cloth {
    min-height: 168px;
    flex-direction: row;
    align-items: center;
    text-align: left;
    gap: 18px;
    padding: 22px 64px 22px 22px;
    background-image:
      repeating-linear-gradient(to bottom, rgba(233, 223, 200, 0.022) 0 1px, transparent 1px 7px),
      radial-gradient(ellipse 60% 130% at -8% 50%, var(--accent-soft) 0%, transparent 62%),
      linear-gradient(100deg, var(--charcoal-2) 0%, var(--ink-2) 52%, #07090d 100%);
  }
  .faction__icon { display: none; }
  .faction__han {
    font-size: 4rem;
    margin-bottom: 0;
    flex: 0 0 auto;
  }
  .faction__body { flex: 1; }
  .faction__name { font-size: 1.3rem; margin-bottom: 5px; }
  .faction__motto { margin-bottom: 8px; }
  .faction__desc { font-size: 0.84rem; margin-inline: 0; }

  .timeline { grid-template-columns: 1fr; gap: 0; }
  .timeline::before {
    top: 5%;
    bottom: 5%;
    left: 27px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(to bottom, transparent, var(--gold-dim) 10%, var(--gold-dim) 90%, transparent);
  }
  .timeline::after {
    top: 0;
    left: 26px;
    width: 2px;
    height: 54%;
    background: linear-gradient(to bottom, var(--gold-dim), var(--gold-bright));
  }
  .timeline__step {
    text-align: left;
    padding: 0 0 44px 84px;
  }
  .timeline__step:last-child { padding-bottom: 0; }
  .timeline__num {
    left: 27px;
    top: -2px;
    transform: translateX(-50%);
  }
  .timeline__step p { margin-inline: 0; }

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

  .br-desktop { display: none; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .container { width: min(1180px, 100% - 40px); }
  .features__grid { grid-template-columns: 1fr; }
  .hero__cta { flex-direction: column; align-items: center; }
  .hero__cta .btn { width: min(320px, 100%); }
  .hero__lede br { display: inline; }
  .hero__tagline { letter-spacing: 0.32em; text-indent: 0.32em; }
  .compare__label { top: 10px; font-size: 0.56rem; padding: 5px 10px; }
  .compare__label--old { left: 10px; }
  .compare__label--new { right: 10px; }
  .game__quote { font-size: 1.3rem; padding-left: 18px; }
  .footer__top { flex-direction: column; align-items: flex-start; }
}

/* ── Reduced motion ──────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero__particles { display: none; }
}

/* ── Screenshot/QA mode (?noanim): pin vh-based sizes ────── */
html.shotmode .hero { min-height: 900px; }
html.shotmode .hero__mountains--far { height: 430px; }
html.shotmode .hero__mountains--near { height: 300px; }
html.shotmode .hero__wall { height: 130px; }
html.shotmode .hero__fog { height: 300px; bottom: -60px; }