/* ============================================================
   HASAN RAHEEM — DIGITAL STORYTELLING
   APPROVED EDITORIAL DESIGN SYSTEM & HIGH-PERFORMANCE STYLES
   ============================================================ */

:root {
  --void: #14120e;
  --void-raised: #1c1912;
  --ink: #f2ece0;
  --ink-dim: rgba(242, 236, 224, 0.56);
  --ink-faint: rgba(242, 236, 224, 0.28);
  --brass: #c69a44;
  --rust: #7c2a1d;
  --rust-ink: #f2e2d6;
  --line: rgba(242, 236, 224, 0.14);
  --line-strong: rgba(242, 236, 224, 0.3);
  --parchment: #e9e2d2;
  --parchment-ink: #1c1912;

  --f-display: 'Bricolage Grotesque', sans-serif;
  --f-body: 'Newsreader', serif;

  --rail-w: 88px;
  --edge: clamp(20px, 4vw, 64px);
}

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

html {
  background: var(--void);
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
  max-width: 100vw;
  color-scheme: dark;
}

/* Lenis Integration */
html.lenis, html.lenis body {
  height: auto;
}
.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}
.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}
.lenis.lenis-stopped {
  overflow: hidden;
}
.lenis.lenis-scrolling iframe {
  pointer-events: none;
}

body {
  background: var(--void);
  color: var(--ink);
  font-family: var(--f-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100vw;
  position: relative;
  width: 100%;
}

::selection {
  background: var(--brass);
  color: var(--void);
}

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

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

button {
  font-family: inherit;
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
}

/* ============ TYPOGRAPHY & UTILITIES ============ */
.u-eyebrow {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.u-eyebrow--brass {
  color: var(--brass);
}

.u-tabular {
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'tnum' 1;
}

/* SplitText Mask Wrappers */
.split-line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.22em;
  margin-bottom: -0.16em;
}
.split-word {
  display: inline-block;
  will-change: transform, opacity;
}

/* ============ MEDIA & CONTAINER TREATMENTS ============ */
.ph {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 140% at 15% 10%, rgba(242, 236, 224, 0.10), transparent 55%),
    linear-gradient(155deg, #26221a 0%, #17150f 55%, #0e0c09 100%);
  isolation: isolate;
}
.ph::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(115deg, rgba(242, 236, 224, 0.035) 0 2px, transparent 2px 5px);
  mix-blend-mode: overlay;
  opacity: 0.5;
  pointer-events: none;
  z-index: 2;
}

.ph--rust {
  background:
    radial-gradient(130% 150% at 80% 0%, rgba(242, 226, 214, 0.12), transparent 55%),
    linear-gradient(160deg, #8a3521 0%, #5e2013 60%, #3a130c 100%);
}
.ph--parchment {
  background:
    radial-gradient(120% 140% at 20% 0%, rgba(28, 25, 18, 0.08), transparent 55%),
    linear-gradient(155deg, #f1ead9 0%, #e3d9c2 100%);
}
.ph--parchment::before {
  opacity: 0.25;
  mix-blend-mode: multiply;
}

.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.03);
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s ease;
  will-change: transform;
}
.img-cover.is-revealed {
  transform: scale(1);
}

/* ============ PERSISTENT LEFT RAIL (Desktop) ============ */
.rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0 22px;
  pointer-events: none;
}
.rail__mark {
  writing-mode: vertical-rl;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  color: var(--ink-dim);
  pointer-events: auto;
  transition: color 0.3s ease;
}
.rail__mark:hover {
  color: var(--ink);
}
.rail__chapters {
  display: flex;
  flex-direction: column;
  gap: 14px;
  pointer-events: auto;
}
.rail__item {
  font-family: var(--f-display);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  writing-mode: vertical-rl;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  background: transparent;
  padding: 4px 2px;
}
.rail__item i {
  display: block;
  width: 1px;
  height: 16px;
  background: var(--ink-faint);
  transition: background 0.35s ease, height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.rail__item:hover {
  color: var(--ink);
}
.rail__item.is-current {
  color: var(--brass);
}
.rail__item.is-current i {
  background: var(--brass);
  height: 30px;
}
.rail__foot {
  font-family: var(--f-display);
  font-size: 0.56rem;
  letter-spacing: 0.08em;
  writing-mode: vertical-rl;
  color: var(--ink-faint);
  text-transform: uppercase;
  pointer-events: auto;
}

/* ============ MOBILE STICKY CHAPTER BAR ============ */
.m-tag {
  display: none;
  font-family: var(--f-display);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
  padding: 0 var(--edge);
  margin-bottom: 22px;
}
.m-tag span {
  color: var(--ink-faint);
}

.m-sticky-bar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 55;
  background: rgba(20, 18, 14, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  padding: 14px var(--edge);
  justify-content: space-between;
  align-items: center;
}
.m-sticky-bar__brand {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--ink);
}
.m-sticky-bar__chapter {
  font-family: var(--f-display);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--brass);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

/* ============ MAIN & CHAPTER SHELL ============ */
main {
  margin-left: var(--rail-w);
  position: relative;
  width: calc(100% - var(--rail-w));
  max-width: 100%;
}

section.chapter {
  position: relative;
  min-height: 100vh;
  padding: 0 var(--edge);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-top: 1px solid var(--line);
}

.chapter__meta {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 18px;
}
.chapter__num {
  font-family: var(--f-display);
  font-weight: 600;
  color: var(--brass);
}

.ghost-num {
  position: absolute;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(9rem, 26vw, 20rem);
  line-height: 1;
  color: rgba(242, 236, 224, 0.045);
  z-index: 0;
  user-select: none;
  pointer-events: none;
  will-change: transform, opacity;
}

.chapter__title {
  font-family: var(--f-display);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.01em;
  font-size: clamp(3.4rem, 8.4vw, 7.2rem);
}

.chapter__statement {
  font-family: var(--f-body);
  font-style: italic;
  font-weight: 400;
  color: var(--ink-dim);
  font-size: clamp(1.2rem, 2vw, 1.7rem);
  max-width: 22ch;
  line-height: 1.32;
}

.chapter__body {
  font-family: var(--f-body);
  font-weight: 300;
  color: var(--ink-dim);
  font-size: clamp(1rem, 1.05vw, 1.1rem);
  line-height: 1.7;
  max-width: 46ch;
}

.grid-split {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
  align-items: center;
  width: 100%;
  padding: 90px 0;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 36px var(--edge) 48px;
  border-top: none;
  overflow: hidden;
}
.hero__bg-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: brightness(0.72) contrast(1.05);
  transform: scale(1.06);
  will-change: transform;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(110% 90% at 50% 10%, rgba(20, 18, 14, 0.3) 0%, rgba(20, 18, 14, 0.85) 75%, var(--void) 100%),
    linear-gradient(180deg, rgba(20, 18, 14, 0.4) 0%, rgba(20, 18, 14, 0.9) 100%);
  pointer-events: none;
}
.hero__top {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.hero__title {
  position: relative;
  z-index: 2;
  font-family: var(--f-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 0.94;
  font-size: clamp(4.6rem, 13.5vw, 11.5rem);
  text-transform: uppercase;
  color: var(--ink);
}
.hero__bottom {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
}
.hero__disclaimer {
  max-width: 34ch;
  font-family: var(--f-display);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  text-transform: uppercase;
  line-height: 1.6;
}
.hero__scroll {
  font-family: var(--f-display);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: flex;
  align-items: center;
  gap: 10px;
  writing-mode: vertical-rl;
  cursor: pointer;
}
.hero__scroll i {
  width: 1px;
  height: 46px;
  background: var(--ink-faint);
  display: block;
  animation: scrollPulse 2.2s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}
@keyframes scrollPulse {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.1% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============ 01 GILGIT ============ */
.ch-gilgit .grid-split {
  min-height: 100vh;
}
.ch-gilgit .ph {
  grid-column: 1 / 8;
  aspect-ratio: 4 / 5;
}
.ch-gilgit .text {
  grid-column: 9 / 13;
}
.ghost-gilgit {
  top: 6%;
  right: 6%;
}

/* ============ 02 KARACHI (Desktop Grid + Mobile Swipe) ============ */
.ch-karachi {
  background: var(--void-raised);
}
.ch-karachi .grid-split {
  min-height: 100vh;
}
.ch-karachi .text {
  grid-column: 1 / 6;
}
.karachi-media-grid {
  grid-column: 6 / 13;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 24px;
  width: 100%;
}
.ch-karachi .ph--1 {
  grid-column: 1 / 8;
  aspect-ratio: 16 / 11;
}
.ch-karachi .ph--2 {
  grid-column: 1 / 4;
  aspect-ratio: 3 / 4;
  margin-top: 120px;
}
.ch-karachi .ph--3 {
  grid-column: 4 / 8;
  aspect-ratio: 3 / 4;
}
.slide-caption {
  display: none;
}
.m-karachi-hint {
  display: none;
}
.ghost-karachi {
  bottom: 4%;
  left: 6%;
}

/* ============ 03 MEDICINE ============ */
.ch-medicine .grid-split {
  min-height: 100vh;
  align-items: start;
  padding-top: 120px;
}
.ch-medicine .text {
  grid-column: 1 / 6;
}
.ch-medicine .ledger {
  grid-column: 7 / 13;
  border-top: 1px solid var(--line-strong);
}
.ledger__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--f-display);
  position: relative;
}
.ledger__row span:first-child {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.ledger__row span:last-child {
  font-size: 1rem;
  color: var(--ink);
}
.medicine-line {
  font-family: var(--f-body);
  font-style: italic;
  color: var(--ink-dim);
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  margin-top: 34px;
  max-width: 32ch;
  line-height: 1.4;
}

/* ============ 04 EXPERIMENT ============ */
.ch-experiment {
  background: var(--void-raised);
}
.ch-experiment .stage {
  position: relative;
  min-height: 100vh;
  padding: 120px 0 90px;
}
.ch-experiment .ph {
  position: absolute;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}
.ch-experiment .ph--a {
  top: 8%;
  left: 0;
  width: 34%;
  aspect-ratio: 3 / 4;
  transform: rotate(-2deg);
}
.ch-experiment .ph--b {
  top: 28%;
  left: 38%;
  width: 26%;
  aspect-ratio: 1 / 1;
  transform: rotate(3deg);
}
.ch-experiment .waveform {
  position: absolute;
  right: 4%;
  bottom: 14%;
  width: 38%;
  opacity: 0.65;
}
.ch-experiment .text {
  position: relative;
  z-index: 2;
  max-width: 52ch;
  margin-top: 0;
}
.ghost-experiment {
  top: 2%;
  right: 0;
}

/* ============ 05 PAAS ============ */
.ch-paas {
  align-items: center;
}
.paas__wrap {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 26px;
  padding: 100px 0;
}
.paas__ph {
  width: min(360px, 60vw);
  aspect-ratio: 1 / 1;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(242, 236, 224, 0.1);
}
.ghost-paas {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(10rem, 34vw, 26rem);
}

/* ============ 06 AISAY KAISAY ============ */
.ch-aisay {
  background: var(--rust);
  color: var(--rust-ink);
  border-top-color: rgba(242, 226, 214, 0.2);
  position: relative;
  overflow: hidden;
}
.ch-aisay .aisay-bg-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.35;
  mix-blend-mode: luminosity;
  overflow: hidden;
}
.ch-aisay .aisay-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.08);
}
.ch-aisay .content {
  position: relative;
  z-index: 2;
  padding: 100px 0;
  max-width: 900px;
}
.ch-aisay .u-eyebrow--brass {
  color: #f2e2d6;
}
.ch-aisay .chapter__num {
  color: #f2e2d6;
}
.ch-aisay .chapter__statement {
  color: rgba(242, 226, 214, 0.85);
}
.ghost-aisay {
  color: rgba(242, 226, 214, 0.08);
  bottom: 0;
  right: 2%;
}

/* ============ 07 GROWTH / MOMENTUM (PINNED HORIZONTAL TIMELINE) ============ */
.ch-growth {
  padding-top: 60px;
  padding-bottom: 60px;
  overflow: hidden;
  position: relative;
}
.growth__inner {
  width: 100%;
  position: relative;
  z-index: 2;
}
.growth__head {
  position: relative;
  z-index: 3;
  margin-bottom: 40px;
}
.m-timeline-hint {
  display: none;
}
.timeline-viewport {
  position: relative;
  width: 100%;
  overflow: visible;
  padding: 40px 0 20px;
}
.timeline-axis-line {
  position: absolute;
  top: 48px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line-strong);
  z-index: 1;
}
.timeline-axis-fill {
  height: 100%;
  width: 0%;
  background: var(--brass);
  transform-origin: left;
}
.timeline-track {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 0;
  width: max-content;
  will-change: transform;
}
.tl-year {
  min-width: 360px;
  border-left: 1px solid var(--line-strong);
  padding: 34px 36px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.tl-node {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--void);
  border: 2px solid var(--brass);
  position: absolute;
  top: -6px;
  left: -6px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.35s ease;
  z-index: 3;
}
.tl-year.is-active .tl-node {
  transform: scale(1.6);
  background: var(--brass);
}
.tl-year__y {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--brass);
  letter-spacing: -0.01em;
}
.tl-year__item {
  font-family: var(--f-body);
  font-size: 1.02rem;
  color: var(--ink-dim);
  line-height: 1.5;
  max-width: 26ch;
}
.tl-year__item b {
  color: var(--ink);
  font-weight: 500;
}
.ghost-growth {
  top: 8%;
  right: 4%;
}

/* ============ 08 GLOBAL ============ */
.ch-global {
  background: var(--rust);
  color: var(--rust-ink);
  padding-bottom: 0;
  position: relative;
  overflow: hidden;
}
.ch-global .global-bg-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.38;
  mix-blend-mode: luminosity;
  overflow: hidden;
}
.ch-global .global-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.06);
}
.global__content {
  position: relative;
  z-index: 2;
  padding: 110px 0 60px;
}
.global__title {
  font-family: var(--f-display);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 0.9;
  font-size: clamp(3.6rem, 9vw, 8rem);
  letter-spacing: -0.01em;
}
.global__cities {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0 42px;
  padding: 0 0 90px;
  border-top: 1px solid rgba(242, 226, 214, 0.25);
  margin-top: 40px;
  padding-top: 34px;
}
.global__cities span {
  font-family: var(--f-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: clamp(1.4rem, 2.6vw, 2.2rem);
  color: rgba(242, 226, 214, 0.5);
  transition: color 0.4s ease, transform 0.4s ease;
}
.global__cities span.is-hi {
  color: var(--rust-ink);
}

/* ============ 09 MY TOP 3 ============ */
.ch-top3 {
  background: var(--parchment);
  color: var(--parchment-ink);
  border-top-color: rgba(28, 25, 18, 0.15);
  position: relative;
}
.ch-top3 .u-eyebrow {
  color: rgba(28, 25, 18, 0.55);
}
.ch-top3 .u-eyebrow--brass {
  color: var(--rust);
}
.ch-top3 .chapter__title {
  color: var(--parchment-ink);
}
.ch-top3 .chapter__statement {
  color: rgba(28, 25, 18, 0.68);
}
.ghost-top3 {
  color: rgba(28, 25, 18, 0.05);
}
.top3__intro {
  position: relative;
  z-index: 1;
  padding-top: 110px;
  margin-bottom: 60px;
}
.top3__list {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding-bottom: 100px;
}

/* Semantic clickable song cards */
.top3__card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  outline: none;
  border-radius: 2px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.top3__card:focus-visible {
  outline: 2px solid var(--rust);
  outline-offset: 6px;
}
.top3__card-media {
  aspect-ratio: 4 / 5;
  position: relative;
  overflow: hidden;
  background: #ded5c2;
  border: 1px solid rgba(28, 25, 18, 0.12);
}
.top3__card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}
.top3__card:hover .top3__card-img {
  transform: scale(1.05);
}
.top3__card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.top3__num {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--rust);
}
.top3__arrow {
  font-family: var(--f-display);
  font-size: 0.9rem;
  color: var(--rust);
  opacity: 0.6;
  transform: translateX(0);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}
.top3__card:hover .top3__arrow {
  opacity: 1;
  transform: translateX(4px) translateY(-2px);
}
.top3__song {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1.15;
  transition: color 0.3s ease;
}
.top3__card:hover .top3__song {
  color: var(--rust);
}
.top3__note {
  font-family: var(--f-body);
  font-style: italic;
  font-size: 0.95rem;
  color: rgba(28, 25, 18, 0.65);
  max-width: 32ch;
  line-height: 1.45;
}
.top3__action {
  font-family: var(--f-display);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rust);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}

/* ============ 10 TODAY ============ */
.ch-today .grid-split {
  min-height: 100vh;
}
.ch-today .text {
  grid-column: 1 / 6;
}
.ch-today .ph {
  grid-column: 6 / 13;
  aspect-ratio: 5 / 6;
  transform: translateY(-30px);
}
.ghost-today {
  bottom: 0;
  right: 8%;
}

/* ============ 11 WHAT REMAINS ============ */
.ch-remains {
  min-height: 80vh;
  align-items: center;
}
.remains__wrap {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 100px 0;
}
.remains__wrap .chapter__title {
  font-size: clamp(2.8rem, 6vw, 4.4rem);
}

/* ============ CLOSING ============ */
.closing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 28px;
  border-top: 1px solid var(--line);
  padding: 60px var(--edge);
}
.closing__name {
  font-family: var(--f-display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  letter-spacing: -0.01em;
  line-height: 1.05;
}
.closing__roles {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  justify-content: center;
}
.closing__roles span {
  font-family: var(--f-display);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.closing__credit {
  font-family: var(--f-body);
  font-style: italic;
  color: var(--ink-dim);
  font-size: 1.05rem;
}
.closing__disclaimer {
  font-family: var(--f-display);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  max-width: 46ch;
  line-height: 1.7;
  margin-top: 20px;
}

/* ============================================================
   RESPONSIVE — MOBILE (< 900px)
   Intentional recomposition, touch-friendly storytelling
   ============================================================ */
@media (max-width: 900px) {
  :root {
    --edge: 20px;
  }
  .rail {
    display: none;
  }
  .m-sticky-bar {
    display: flex;
  }
  main {
    margin-left: 0;
    width: 100%;
  }
  .m-tag {
    display: block;
    padding-top: 76px;
  }

  section.chapter {
    min-height: auto;
    padding: 0 var(--edge) 76px;
  }
  .grid-split {
    display: flex;
    flex-direction: column;
    padding: 0;
    gap: 28px;
  }

  /* 01 Gilgit Mobile */
  .ch-gilgit .ph {
    width: 100%;
    transform: none;
  }

  /* 02 Karachi Mobile (Horizontal Swipe Gallery) */
  .karachi-media-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    width: 100%;
    padding: 8px 0 16px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .karachi-media-grid::-webkit-scrollbar {
    display: none;
  }
  .karachi-slide {
    flex: 0 0 calc(85vw - 20px);
    max-width: 320px;
    aspect-ratio: 4 / 3;
    scroll-snap-align: start;
    position: relative;
    margin-top: 0 !important;
    border-radius: 2px;
    border: 1px solid var(--line);
  }
  .slide-caption {
    display: block;
    position: absolute;
    bottom: 12px;
    left: 14px;
    font-family: var(--f-display);
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    color: var(--ink);
    background: rgba(20, 18, 14, 0.75);
    backdrop-filter: blur(4px);
    padding: 4px 8px;
    border: 1px solid var(--line);
    border-radius: 1px;
    z-index: 3;
  }
  .m-karachi-hint {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--f-display);
    font-size: 0.64rem;
    letter-spacing: 0.12em;
    color: var(--ink-dim);
    text-transform: uppercase;
    width: 100%;
    padding-top: 4px;
    border-top: 1px solid var(--line);
  }
  .m-karachi-hint span span {
    color: var(--brass);
    font-weight: 600;
  }

  /* 03 Medicine Mobile */
  .ch-medicine .grid-split {
    flex-direction: column;
    padding-top: 0;
  }
  .ledger {
    width: 100%;
  }

  /* 04 Hero Mobile */
  .hero {
    padding: 72px var(--edge) 40px;
    min-height: 100svh;
  }
  .hero__title {
    font-size: clamp(3.4rem, 16vw, 5.2rem);
  }
  .hero__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .hero__scroll {
    writing-mode: horizontal-tb;
  }
  .hero__scroll i {
    width: 36px;
    height: 1px;
  }

  .chapter__title {
    font-size: clamp(2.6rem, 13vw, 4rem);
  }
  .chapter__statement {
    max-width: 100%;
  }
  .chapter__body {
    max-width: 100%;
  }
  .ghost-num {
    display: none;
  }

  /* 04 Experiment Mobile */
  .ch-experiment .stage {
    min-height: auto;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
  }
  .ch-experiment .ph {
    position: relative;
    width: 100%;
    max-width: 320px;
    transform: none !important;
    top: auto;
    left: auto;
  }
  .ch-experiment .waveform {
    position: relative;
    width: 100%;
    right: auto;
    bottom: auto;
    margin-top: 10px;
  }

  /* 05 Paas Mobile */
  .paas__wrap {
    padding: 0;
  }
  .paas__ph {
    width: 80vw;
  }

  /* 07 Growth / Momentum Mobile (Horizontal Swipe Cards) */
  .ch-growth {
    padding-top: 0;
    padding-bottom: 76px;
    height: auto;
  }
  .growth__inner {
    width: 100%;
  }
  .growth__head {
    margin-bottom: 20px;
  }
  .m-timeline-hint {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--f-display);
    font-size: 0.64rem;
    letter-spacing: 0.12em;
    color: var(--ink-dim);
    text-transform: uppercase;
    margin-top: 18px;
    padding-top: 10px;
    border-top: 1px solid var(--line);
  }
  .m-timeline-hint span span {
    color: var(--brass);
    font-weight: 600;
  }
  .timeline-axis-line {
    display: none;
  }
  .timeline-viewport {
    overflow: hidden;
    width: 100%;
    padding: 0;
  }
  .timeline-track {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding: 10px 0 20px;
    width: 100%;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .timeline-track::-webkit-scrollbar {
    display: none;
  }
  .tl-year {
    min-width: auto;
    flex: 0 0 calc(85vw - 20px);
    max-width: 320px;
    scroll-snap-align: start;
    border: 1px solid var(--line-strong);
    border-left: 3px solid var(--brass);
    padding: 24px 20px;
    background: var(--void-raised);
    border-radius: 2px;
  }
  .tl-node {
    display: none;
  }

  /* 08 Global Mobile */
  .global__cities {
    gap: 10px 24px;
    padding-top: 24px;
  }
  .global__cities span {
    font-size: 1.15rem;
  }

  /* 09 Top 3 Mobile */
  .top3__list {
    grid-template-columns: 1fr;
    padding-bottom: 60px;
    gap: 40px;
  }
  .top3__intro {
    padding-top: 0;
  }

  /* 10 Today Mobile */
  .ch-today .ph {
    width: 100%;
    transform: none;
  }

  .closing__roles {
    gap: 14px 20px;
  }
}

/* ============================================================
   REDUCED MOTION SUPPORT
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .hero__bg-img,
  .aisay-bg-img,
  .global-bg-img,
  .img-cover {
    transform: none !important;
  }
  .split-word {
    transform: none !important;
    opacity: 1 !important;
  }
  .ghost-num {
    transform: none !important;
    opacity: 0.05 !important;
  }
}