/* ============================================================
   Amir Serag — site design system
   Dark steel theme, chrome display type, pill buttons,
   rounded panels, marquee, staggered reveals.
   Motion: transform/opacity only, cubic-bezier(0.16,1,0.32,1).
   ============================================================ */

:root {
  --background: #0c0c0c;
  --ink: #d7e2ea;
  --ink-60: rgba(215, 226, 234, 0.6);
  --ink-35: rgba(215, 226, 234, 0.35);
  --ink-25: rgba(215, 226, 234, 0.25);
  --ink-10: rgba(215, 226, 234, 0.1);
  --surface-alt: #fff;
  --surface-alt-foreground: #000;
  --border: rgba(215, 226, 234, 0.22);
  --gradient-chrome: linear-gradient(180deg, #6b7580 0%, #a8b8c5 45%, #d7e2ea 100%);

  --font-display: "Kanit", system-ui, sans-serif;
  --font-sans: "Kanit", system-ui, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.32, 1);
  --dur-fast: 500ms;

  --pad-x: clamp(1.25rem, 4vw, 2.5rem);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--background);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
  border-radius: 2px;
}

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

/* ---------- Type scale ---------- */
.display-hero {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.035em;
  white-space: nowrap;
  font-size: 14vw;
  font-weight: 900;
  line-height: 0.82;
}

@media (min-width: 768px) {
  .display-hero {
    font-size: 15vw;
  }
}

@media (min-width: 1024px) {
  .display-hero {
    font-size: 16vw;
  }
}

@media (min-width: 1280px) {
  .display-hero {
    font-size: 17.5vw;
  }
}

.display-lg {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.025em;
  font-size: clamp(3rem, 12vw, 160px);
  font-weight: 900;
  line-height: 0.85;
}

.display-md {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 0.9;
}

.display-sm {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  font-size: clamp(1.35rem, 3.2vw, 2.25rem);
  font-weight: 600;
  line-height: 1.05;
}

.eyebrow {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: clamp(0.65rem, 1vw, 0.875rem);
  font-weight: 300;
  color: var(--ink-60);
}

.body-md {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: clamp(0.75rem, 1.4vw, 1.5rem);
  font-weight: 300;
  line-height: 1.45;
}

.body-lg {
  font-family: var(--font-sans);
  font-size: clamp(1rem, 1.7vw, 1.35rem);
  font-weight: 300;
  line-height: 1.7;
}

.nav-label {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: clamp(0.875rem, 1.3vw, 1.4rem);
  font-weight: 500;
}

.muted {
  color: var(--ink-60);
}

/* ---------- Chrome text ---------- */
.chrome-text {
  background-image: var(--gradient-chrome);
  color: transparent;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  -webkit-background-clip: text;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  transform: translateZ(0);
}

/* ---------- Buttons ---------- */
.btn-cta,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border-radius: 9999px;
  font-weight: 500;
  font-size: 0.75rem;
  padding: 0.75rem 2rem;
  transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out),
    background-color 200ms, color 200ms;
}

@media (min-width: 768px) {
  .btn-cta,
  .btn-outline {
    font-size: 0.875rem;
    padding: 0.875rem 2.5rem;
  }
}

@media (min-width: 1024px) {
  .btn-cta {
    font-size: 1rem;
    padding: 1rem 3rem;
  }

  .btn-outline {
    font-size: 1rem;
    padding: 0.875rem 2.5rem;
  }
}

.btn-cta {
  color: var(--background);
  background: var(--ink);
  box-shadow: 0 4px 24px rgba(215, 226, 234, 0.18), inset 0 0 0 2px rgba(12, 12, 12, 0.06);
}

.btn-cta:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 30px rgba(215, 226, 234, 0.28);
}

.btn-outline {
  color: var(--ink);
  border: 2px solid var(--ink);
  transition: background-color 200ms;
}

.btn-outline:hover {
  background: var(--ink-10);
}

/* ---------- Skip link ---------- */
.skip {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.6rem 1.2rem;
  border-radius: 9999px;
  background: var(--ink);
  color: var(--background);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 500;
  transform: translateY(-200%);
  transition: transform 200ms var(--ease-out);
}

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

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(0.9rem, 2vw, 1.4rem) var(--pad-x);
  pointer-events: none;
}

.site-header > * {
  pointer-events: auto;
}

.site-header .hairline {
  position: absolute;
  left: var(--pad-x);
  right: var(--pad-x);
  bottom: 0;
  height: 1px;
  background: var(--border);
}

.header-side {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.header-side .nav-label a:hover {
  opacity: 0.7;
}

.header-side.right {
  text-align: right;
  align-items: flex-end;
}

@media (max-width: 640px) {
  .header-side.right {
    display: none;
  }
}

/* Octagon menu button */
.menu-btn {
  position: relative;
  display: grid;
  place-items: center;
  width: 64px;
  height: 44px;
  padding: 0 14px;
  border-radius: 9999px;
  border: 1px solid var(--ink-25);
  background: rgba(12, 12, 12, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background-color 300ms, border-color 300ms;
}

.menu-btn:hover {
  background: var(--ink-10);
  border-color: var(--ink-35);
}

.menu-btn svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.menu-btn .octagon {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 500ms var(--ease-out);
}

.menu-btn:hover .octagon {
  transform: rotate(22.5deg);
}

.menu-btn .bar {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 400ms var(--ease-out), opacity 250ms;
}

.menu-btn .bar-mid {
  opacity: 1;
}

.menu-btn[aria-expanded="true"] {
  background: var(--ink-10);
  border-color: var(--ink-35);
}

.menu-btn[aria-expanded="true"] .octagon {
  transform: rotate(45deg);
}

.menu-btn[aria-expanded="true"] .bar-top {
  transform: translateY(4px);
}

.menu-btn[aria-expanded="true"] .bar-mid {
  opacity: 0;
}

.menu-btn[aria-expanded="true"] .bar-btm {
  transform: translateY(-4px);
}

/* ---------- Menu overlay ---------- */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(4.5rem, 10vh, 7rem) var(--pad-x) clamp(2rem, 6vh, 3.5rem);
  visibility: hidden;
  opacity: 0;
  transition: opacity 400ms var(--ease-out), visibility 0s linear 400ms;
}

.menu-overlay.is-open {
  visibility: visible;
  opacity: 1;
  transition: opacity 400ms var(--ease-out);
}

.menu-backdrop {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: var(--background);
}

.menu-grid {
  position: absolute;
  inset: -3%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: 1fr;
  gap: 0.375rem;
  opacity: 0.3;
  filter: blur(1px);
  transform: scale(1.06);
}

@media (min-width: 640px) {
  .menu-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.menu-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.menu-veil {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    120% 80% at 50% 45%,
    rgba(12, 12, 12, 0.94) 0%,
    rgba(12, 12, 12, 0.82) 55%,
    rgba(12, 12, 12, 0.96) 100%
  );
}

.menu-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(2.5rem, 8vh, 5rem);
  max-width: 1100px;
  width: 100%;
  margin-inline: auto;
}

.menu-nav ul {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
}

.menu-link {
  display: inline-block;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 0.95;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out),
    color 200ms;
}

.menu-link:hover {
  color: var(--ink);
  -webkit-text-stroke: 1px var(--ink-35);
}

.menu-overlay.is-open .menu-link {
  opacity: 1;
  transform: translateY(0);
}

.menu-link[aria-current="page"] {
  -webkit-text-stroke: 1px var(--ink-35);
}

.menu-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.menu-meta .eyebrow {
  color: var(--ink);
}

/* ---------- Page shell ---------- */
.page {
  padding-top: 76px;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section {
  padding-block: clamp(4rem, 10vw, 8rem);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.hairline {
  height: 1px;
  background: var(--border);
  border: 0;
}

/* ---------- Hero (home) ---------- */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  min-height: max(100svh, 640px);
  overflow: hidden;
}

.hero-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  gap: clamp(1.25rem, 3vw, 2rem);
  padding-top: clamp(3.5rem, 8vh, 5.5rem);
}

.hero-title {
  font-size: 15vw;
}

.hero-figure {
  position: relative;
  width: clamp(240px, 34vw, 430px);
  margin-top: auto;
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 30%;
  border-radius: 999px 999px 28px 28px;
  border: 1px solid var(--ink-25);
}

.hero-foot {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: end;
  padding-block: clamp(1.75rem, 4vw, 2.75rem);
}

@media (min-width: 900px) {
  .hero-foot {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

.hero-foot .body-md {
  max-width: 52ch;
}

/* ---------- Marquee ---------- */
.marquee {
  padding-block: clamp(2.5rem, 5vw, 4rem);
}

.marquee-mask {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 8%, #000 92%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 8%, #000 92%, transparent 100%);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee-left var(--marquee-duration, 40s) linear infinite;
}

.marquee-mask:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 3rem);
  padding-inline: clamp(0.75rem, 1.5vw, 1.5rem);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  font-size: clamp(2rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  white-space: nowrap;
}

.marquee-item .spark {
  font-size: 0.55em;
  font-weight: 400;
}

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

/* ---------- Panels ---------- */
.panel {
  border-radius: clamp(40px, 6vw, 60px) clamp(40px, 6vw, 60px) 0 0;
}

.panel-light {
  background: var(--surface-alt);
  color: var(--surface-alt-foreground);
}

.panel-dark {
  background: var(--background);
  position: relative;
  z-index: 2;
  margin-top: clamp(-2.5rem, -4vw, -1rem);
}

.panel-dark .muted,
.panel-dark .eyebrow {
  color: var(--ink-60);
}

.panel-light .eyebrow {
  color: rgba(12, 12, 12, 0.55);
}

.panel-light ::selection {
  background: var(--surface-alt-foreground);
  color: var(--surface-alt);
}

/* ---------- Work cards ---------- */
.work-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 700px) {
  .work-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 1100px) {
  .work-grid.cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border-radius: 28px;
  border: 2px solid var(--ink-25);
  background: var(--background);
  transition: border-color 300ms, transform 500ms var(--ease-out);
}

.card:hover {
  border-color: var(--ink);
  transform: translateY(-4px);
}

.card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease-out);
}

.card:hover .card-media img {
  transform: scale(1.04);
}

.card-media.is-logo {
  display: grid;
  place-items: center;
  padding: 2rem;
}

.card-media.is-logo img {
  height: auto;
  max-height: 100%;
  width: auto;
  max-width: 70%;
  object-fit: contain;
  transition: none;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.25rem 1.25rem 1.5rem;
}

.card-body .display-sm {
  font-size: clamp(1.2rem, 2.4vw, 1.65rem);
}

.card-body p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink-60);
}

.card-body .card-link {
  margin-top: 0.4rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ink);
}

.panel-light .card {
  background: transparent;
  border-color: rgba(12, 12, 12, 0.18);
}

.panel-light .card:hover {
  border-color: rgba(12, 12, 12, 0.75);
}

.panel-light .card-body p {
  color: rgba(12, 12, 12, 0.62);
}

/* Chips (ventures) */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1.1rem;
  border-radius: 9999px;
  border: 1px solid var(--ink-25);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 500;
  transition: background-color 200ms, border-color 200ms;
}

.chip:hover {
  background: var(--ink-10);
  border-color: var(--ink-35);
}

.chip .muted {
  font-family: var(--font-sans);
  letter-spacing: 0.1em;
  font-size: 0.65rem;
}

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 0.9;
}

.stat-label {
  margin-top: 0.4rem;
}

/* ---------- Timeline (about) ---------- */
.timeline {
  border-top: 1px solid var(--border);
}

.timeline-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem 2rem;
  padding-block: 1.6rem;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

@media (min-width: 720px) {
  .timeline-row {
    grid-template-columns: 150px 1fr auto;
    align-items: center;
  }

  .timeline-row .when {
    order: 0;
  }
}

.timeline-row .when {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-60);
}

.timeline-row .display-sm {
  font-size: clamp(1.4rem, 3.4vw, 2.4rem);
}

.timeline-row .role {
  color: var(--ink-60);
  text-align: left;
}

/* ---------- Service rows ---------- */
.service-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 800px) {
  .service-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

.service-card {
  position: relative;
  padding: 2rem 1.75rem 2.25rem;
  border-radius: 28px;
  border: 2px solid rgba(12, 12, 12, 0.15);
  transition: border-color 300ms, transform 500ms var(--ease-out);
}

.service-card:hover {
  border-color: rgba(12, 12, 12, 0.7);
  transform: translateY(-4px);
}

.service-card .index {
  position: absolute;
  top: 1.4rem;
  right: 1.6rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: rgba(12, 12, 12, 0.35);
}

.service-card h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  font-weight: 600;
  line-height: 1.05;
  max-width: 14ch;
}

.service-card p {
  margin-top: 0.9rem;
  font-size: 0.95rem;
  line-height: 1.65;
  color: rgba(12, 12, 12, 0.62);
  max-width: 44ch;
}

/* ---------- Contact page ---------- */
.contact-list {
  border-top: 1px solid var(--border);
}

.contact-row {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding-block: clamp(1.5rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--border);
  transition: background-color 200ms;
}

@media (min-width: 720px) {
  .contact-row {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
  }
}

.contact-row .label {
  min-width: 180px;
}

.contact-row .value {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  font-size: clamp(1.25rem, 3.2vw, 2.1rem);
  font-weight: 600;
  line-height: 1.1;
}

.contact-row:hover .value {
  color: var(--ink-60);
}

/* ---------- CTA band ---------- */
.cta-band {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.cta-band .display-lg {
  font-size: clamp(3rem, 12vw, 150px);
}

/* ---------- Footer ---------- */
.site-footer {
  padding: clamp(3rem, 7vw, 5.5rem) 0 2.5rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.75rem;
  margin-top: 1.75rem;
}

.footer-links a {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--ink-60);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* ---------- Reveal animations ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(30px);
}

html.js [data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

/* Hero portrait gentle float */
html.js .hero-figure img {
  animation: floaty 7s ease-in-out infinite;
}

@keyframes floaty {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  html.js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .marquee-track,
  html.js .hero-figure img {
    animation: none;
  }

  .btn-cta:hover,
  .card:hover,
  .card:hover .card-media img,
  .service-card:hover {
    transform: none;
  }

  .menu-btn .octagon,
  .menu-btn .bar,
  .menu-overlay,
  .menu-link,
  .card,
  .card-media img,
  .service-card {
    transition: none;
  }
}