/* =========================================================
   Muhammad Yusuf Prananda — portfolio
   Brutalist-lite / monospace. Full-screen slide carousel.
   Hand-built, no framework.
   ========================================================= */

/* ---------- Design tokens ---------- */
:root {
  --paper: #edeae3;
  --ink: #0e0e0c;
  --muted: rgba(14, 14, 12, 0.62);
  --faint: rgba(14, 14, 12, 0.44);
  --hair: rgba(14, 14, 12, 0.14);
  --hair-strong: rgba(14, 14, 12, 0.3);
  --accent: #e8590c;
  --accent-ink: #ffffff;
  --header-h: 60px;
  --bar-h: 40px;

  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --font-sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --wrap: 1120px;
  --gutter: clamp(20px, 5vw, 48px);
  --ease: cubic-bezier(0.19, 0.8, 0.22, 1);

  color-scheme: light;
}

[data-theme="dark"] {
  --paper: #0e0e0c;
  --ink: #ece9e2;
  --muted: rgba(236, 233, 226, 0.64);
  --faint: rgba(236, 233, 226, 0.44);
  --hair: rgba(236, 233, 226, 0.16);
  --hair-strong: rgba(236, 233, 226, 0.34);
  --accent: #ff6a19;
  --accent-ink: #0e0e0c;

  color-scheme: dark;
}

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

html,
body {
  height: 100%;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.4s ease, color 0.4s ease;
  display: flex;
  flex-direction: column;
  height: 100svh;
  overflow: hidden;
}

/* Subtle film grain — tactile signal, not decoration. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Faint dot grid — "infinite canvas" depth. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(var(--hair) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.5;
}

[data-theme="dark"] body::after {
  opacity: 0.07;
}

::selection {
  background: var(--accent);
  color: #fff;
}

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

h1,
h2,
h3,
p,
dl,
dd,
ul {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-underline-offset: 0.22em;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--accent);
}

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

/* ---------- Layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.mono {
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.skip:focus {
  left: 12px;
  top: 12px;
}

/* ---------- Horizontal deck ---------- */
.deck {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
}

.deck::-webkit-scrollbar {
  display: none;
}

.slide {
  position: relative;
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  /* `safe` keeps the top reachable when content is taller than the panel. */
  justify-content: safe center;
  scroll-snap-align: center;
  scroll-snap-stop: always;
  padding-block: clamp(40px, 7vh, 92px);
  scrollbar-width: thin;
  scrollbar-color: var(--hair-strong) transparent;
}

.slide + .slide {
  border-left: 1px solid var(--hair);
}

.slide > .wrap {
  width: 100%;
}

/* ---------- Header ---------- */
.site-header {
  position: relative;
  z-index: 50;
  flex: 0 0 auto;
  background: var(--paper);
  border-bottom: 1px solid var(--hair);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  margin-right: auto;
}

.brand:hover {
  color: inherit;
}

.brand-mark {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  padding: 3px 7px;
  border: 1px solid var(--ink);
}

.brand-name {
  font-size: 0.86rem;
  letter-spacing: -0.01em;
  color: var(--muted);
}

.nav {
  display: flex;
  gap: 4px;
}

.nav a {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  padding: 6px 9px;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 9px;
  right: 9px;
  bottom: 2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav a:hover,
.nav a.is-current {
  color: var(--ink);
}

.nav a:hover::after,
.nav a.is-current::after {
  transform: scaleX(1);
}

.controls {
  display: flex;
  gap: 6px;
}

.ctrl {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--hair-strong);
  padding: 6px 10px;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease,
    border-color 0.15s ease;
}

.ctrl:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* ---------- Hero ---------- */
.hero-wrap {
  padding-bottom: clamp(40px, 8vh, 80px);
}

.eyebrow {
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: clamp(20px, 3.5vw, 40px);
}

.hero-name {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(2.5rem, 10.5vw, 7.6rem);
  line-height: 0.94;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.hero-name .line {
  display: block;
  overflow: hidden;
}

/* Signature move: the name rises in on load. */
.hero-name .line > span {
  display: block;
  transform: translateY(112%);
  animation: rise 1s var(--ease) forwards;
}

.hero-name .line:nth-child(2) > span {
  animation-delay: 0.14s;
}

@keyframes rise {
  to {
    transform: translateY(0);
  }
}

.hero-role {
  margin-top: clamp(18px, 3vw, 32px);
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 2.4vw, 1.35rem);
  letter-spacing: -0.01em;
}

.hero-role::before {
  content: "";
  display: inline-block;
  width: 0.62em;
  height: 0.62em;
  margin-right: 0.6em;
  background: var(--accent);
  vertical-align: 0.02em;
  animation: blink 2.4s ease-in-out infinite;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.25;
  }
}

.hero-lead {
  max-width: 62ch;
  margin-top: clamp(20px, 3vw, 32px);
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.12rem);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(32px, 5vw, 56px);
  background: var(--hair);
  border: 1px solid var(--hair);
}

.meta-item {
  background: var(--paper);
  padding: 16px 18px;
}

.meta-item dt {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 8px;
}

.meta-item dd {
  margin: 0;
  font-size: 0.86rem;
}

.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  background: var(--accent);
  vertical-align: 0.02em;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 106, 25, 0.55);
  }
  70% {
    box-shadow: 0 0 0 9px rgba(255, 106, 25, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 106, 25, 0);
  }
}

/* ---------- Marquee ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  background: var(--paper);
}

.marquee--bar {
  flex: 0 0 auto;
  height: var(--bar-h);
  display: flex;
  align-items: center;
  border-top: 1px solid var(--hair);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 30s linear infinite;
  will-change: transform;
}

.marquee--rev .marquee-track {
  animation-direction: reverse;
}

.marquee-track span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 2px 0;
  white-space: nowrap;
}

.marquee-track span::after {
  content: "/";
  margin: 0 22px;
  color: var(--accent);
}

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

/* ---------- Section heads ---------- */
.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: clamp(28px, 4.5vw, 56px);
}

.section-num {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.section-head h2 {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.35rem, 3.4vw, 2.3rem);
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.rule {
  flex: 1;
  height: 1px;
  background: var(--hair);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s var(--ease) 0.15s;
}

.slide.is-active .rule {
  transform: scaleX(1);
}

/* ---------- About ---------- */
.prose p {
  max-width: 68ch;
  color: var(--ink);
  font-size: clamp(1rem, 1.5vw, 1.1rem);
}

.prose p + p {
  margin-top: 1.1em;
  color: var(--muted);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(28px, 4.5vw, 52px);
  background: var(--hair);
  border: 1px solid var(--hair);
}

.stat {
  background: var(--paper);
  padding: clamp(18px, 2.5vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-num {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

/* ---------- Entries ---------- */
.entries {
  border-top: 1px solid var(--hair);
}

.entry {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: clamp(16px, 4vw, 48px);
  padding-block: clamp(22px, 3.4vw, 40px);
  border-bottom: 1px solid var(--hair);
}

.entry-meta {
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--faint);
  padding-top: 0.35em;
}

.entry-main h3 {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.entry-org {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.bullets {
  margin-top: 16px;
  display: grid;
  gap: 9px;
}

.bullets li {
  position: relative;
  padding-left: 20px;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 74ch;
}

.bullets li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--faint);
  font-family: var(--font-mono);
}

.entry-note {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--ink);
}

.entries--compact .entry {
  padding-block: clamp(18px, 2.6vw, 30px);
}

/* ---------- Projects ---------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.project-card {
  position: relative;
  background: var(--paper);
  padding: clamp(18px, 2.4vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
}

.project-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}

.project-card:hover::before {
  width: 3px;
}

.project-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.project-card-name {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1rem, 1.7vw, 1.25rem);
  letter-spacing: -0.02em;
  transition: color 0.25s ease;
}

.project-card:hover .project-card-name {
  color: var(--accent);
}

.project-card-tag {
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.project-card-desc {
  font-size: 0.9rem;
  color: var(--muted);
}

.project-card-stack {
  font-size: 0.74rem;
  color: var(--faint);
  margin-top: auto;
}

.project-card-link,
.project-card-note {
  font-size: 0.76rem;
  word-break: break-word;
}

.project-card-note {
  color: var(--faint);
}

.project-card-link .arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease);
}

.project-card-link:hover .arrow {
  transform: translate(3px, -3px);
}

/* ---------- Skills ---------- */
.skills {
  border-top: 1px solid var(--hair);
}

.skill {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: clamp(12px, 4vw, 48px);
  padding-block: 18px;
  border-bottom: 1px solid var(--hair);
  align-items: baseline;
}

.skill dt {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.skill dd {
  margin: 0;
  font-size: 0.98rem;
}

/* ---------- Certifications ---------- */
.certs {
  margin-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--hair);
}

.certs li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-block: 14px;
  border-bottom: 1px solid var(--hair);
}

.certs-name {
  font-size: 0.98rem;
}

.certs-meta {
  font-size: 0.78rem;
  color: var(--faint);
  white-space: nowrap;
}

/* ---------- Contact ---------- */
.contact-lead {
  max-width: 60ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  margin-bottom: clamp(24px, 4vw, 40px);
}

.contact-list {
  border-top: 1px solid var(--hair);
}

.contact-list li {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: clamp(12px, 4vw, 40px);
  padding-block: 16px;
  border-bottom: 1px solid var(--hair);
  align-items: baseline;
}

.contact-key {
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.contact-list a {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  word-break: break-word;
}

.contact-list .arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease);
}

.contact-list a:hover .arrow {
  transform: translate(3px, -3px);
}

/* ---------- In-slide footer ---------- */
.slide-footer {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 18px;
  border-top: 1px solid var(--hair-strong);
}

.footer-note {
  font-size: 0.9rem;
  color: var(--muted);
}

.footer-meta {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--faint);
}

/* ---------- Slide controls ---------- */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  z-index: 60;
  background: transparent;
}

#progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
}

.slides-nav {
  position: fixed;
  right: clamp(14px, 2.5vw, 28px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 55;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dot-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 6px 0;
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--faint);
}

.dot-nav-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(6px);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease);
}

.dot-nav-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--hair-strong);
  transition: width 0.3s var(--ease), background-color 0.3s ease;
}

.dot-nav:hover .dot-nav-label,
.dot-nav:focus-visible .dot-nav-label {
  opacity: 1;
  transform: none;
}

.dot-nav:hover .dot-nav-line {
  background: var(--ink);
}

.dot-nav[aria-current="true"] .dot-nav-line {
  width: 34px;
  background: var(--accent);
}

.dot-nav[aria-current="true"] .dot-nav-label {
  opacity: 1;
  transform: none;
  color: var(--accent);
}

.slide-controls {
  position: fixed;
  right: clamp(14px, 2.5vw, 28px);
  bottom: calc(var(--bar-h) + clamp(12px, 3vh, 24px));
  z-index: 55;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.slide-counter {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.slide-counter .sep {
  margin: 0 4px;
}

.slide-counter #slide-current {
  color: var(--accent);
}

.arrows {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.arrows button {
  width: 36px;
  height: 36px;
  border: 1px solid var(--hair-strong);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease,
    border-color 0.18s ease, transform 0.18s ease;
}

.arrows button:hover:not(:disabled) {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  transform: translateY(-1px);
}

.arrows button:disabled {
  opacity: 0.25;
  cursor: default;
}

/* ---------- Entrance animations (per active slide) ---------- */
.js .anim {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.js .slide.is-active .anim {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .entry,
  .skill,
  .contact-list li {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .entry-meta {
    padding-top: 0;
  }
}

@media (max-width: 760px) {
  :root {
    --header-h: 52px;
  }

  .nav {
    order: 3;
    flex-basis: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .header-inner {
    flex-wrap: wrap;
    padding-block: 8px;
  }

  .hero-meta,
  .stats {
    grid-template-columns: 1fr;
  }

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

  /* On small screens the dots move to the bottom centre. */
  .slides-nav {
    top: auto;
    bottom: calc(var(--bar-h) + 12px);
    left: 0;
    right: 0;
    transform: none;
    flex-direction: row;
    justify-content: center;
    gap: 10px;
  }

  .dot-nav {
    flex-direction: column-reverse;
    gap: 6px;
  }

  .dot-nav-label {
    display: none;
  }

  .slide-controls {
    display: none;
  }

  .slide {
    padding-bottom: 76px;
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .deck {
    scroll-behavior: auto;
    scroll-snap-type: none;
  }

  .hero-name .line > span {
    transform: none;
    animation: none;
  }

  .js .anim {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .rule {
    transform: scaleX(1);
  }

  .marquee-track,
  .dot,
  .hero-role::before {
    animation: none;
  }

  .project-card::before {
    display: none;
  }

  * {
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Print ---------- */
@media print {
  body::after,
  body::before,
  .progress,
  .slides-nav,
  .slide-controls,
  .site-header,
  .marquee {
    display: none;
  }

  .js .anim {
    opacity: 1;
    transform: none;
  }

  body {
    display: block;
    height: auto;
    overflow: visible;
  }

  .deck {
    display: block;
    overflow: visible;
    height: auto;
  }

  .slide {
    height: auto;
    overflow: visible;
    padding-block: 24px;
    border-left: 0;
    break-inside: avoid;
  }

  .slide + .slide {
    border-top: 1px solid var(--hair);
  }

  a {
    text-decoration: none;
  }
}