/* =====================================================
   Sada Investama — Editorial Stylesheet
   Palet: ivory hangat · tinta · perunggu
   Tipografi: Fraunces (display) · Instrument Sans (body)
   ===================================================== */

:root {
  --paper: #f7f3ec;
  --paper-deep: #f1ebe0;
  --ink: #1d1a15;
  --ink-soft: #4f483e;
  --muted: #8a8071;
  --bronze: #96682f;
  --bronze-deep: #7a5222;
  --line: #ddd4c4;
  --line-soft: #e8e1d3;
  --white: #fffdf9;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Instrument Sans", -apple-system, "Segoe UI", sans-serif;

  --shell-w: 1240px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink-soft);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--bronze); color: var(--paper); }

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

.shell {
  width: min(var(--shell-w), calc(100% - 3rem));
  margin-inline: auto;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--ink);
  line-height: 1.12;
  letter-spacing: -0.015em;
}
h1 em, h2 em {
  font-style: italic;
  font-weight: 380;
  color: var(--bronze);
}

/* ---------- Micro labels ---------- */
.meta-line {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
}
.meta-line .tick {
  width: 34px;
  height: 1px;
  background: var(--bronze);
  flex-shrink: 0;
}

/* ---------- Links ---------- */
.link-line {
  display: inline-block;
  position: relative;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 0.35rem;
}
.link-line::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--ink);
  transform-origin: left;
  transition: transform 0.45s var(--ease), background 0.3s;
}
.link-line:hover { color: var(--bronze-deep); }
.link-line:hover::after { background: var(--bronze-deep); transform: scaleX(0.4); }
.link-line .arr { display: inline-block; transition: transform 0.35s var(--ease); }
.link-line:hover .arr { transform: translateX(5px); }
.link-line.lg { font-size: 1.1rem; }

.link-quiet {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.3s;
}
.link-quiet:hover { color: var(--ink); }

/* =====================================================
   Header
   ===================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 1.35rem 0;
  transition: padding 0.4s var(--ease), background 0.4s, box-shadow 0.4s;
}
.site-header.scrolled {
  background: rgba(247, 243, 236, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 0.85rem 0;
  box-shadow: 0 1px 0 var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1.32rem;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.wordmark em { font-style: italic; font-weight: 350; color: var(--bronze); }

.site-nav {
  display: flex;
  gap: 1.9rem;
  margin-left: auto;
}
.site-nav a {
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.3s;
}
.site-nav a span::before {
  content: attr(data-nav) " ";
  font-size: 0.64rem;
  font-weight: 600;
  color: var(--bronze);
  letter-spacing: 0.08em;
  vertical-align: super;
  margin-right: 1px;
}
.site-nav a:hover { color: var(--ink); }

.header-cta {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0.55rem 1.25rem;
  white-space: nowrap;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}
.header-cta:hover { background: var(--ink); color: var(--paper); }
.header-cta .arr { display: inline-block; transition: transform 0.35s var(--ease); }
.header-cta:hover .arr { transform: translateX(4px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
}
.nav-toggle span {
  width: 26px;
  height: 1.5px;
  background: var(--ink);
  margin-inline: auto;
  transition: transform 0.35s var(--ease);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(3.75px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { transform: translateY(-3.75px) rotate(-45deg); }

/* =====================================================
   Hero
   ===================================================== */
.hero { padding-top: clamp(7rem, 14vh, 9.5rem); }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: end;
}
.hero-copy { padding-bottom: 1.5rem; }
.hero-copy .meta-line { margin-bottom: 2rem; }

.hero h1 {
  font-size: clamp(2.6rem, 5.6vw, 4.6rem);
  font-weight: 420;
  margin-bottom: 1.6rem;
}

.hero-sub {
  max-width: 470px;
  font-size: 1.04rem;
  color: var(--ink-soft);
  margin-bottom: 2.4rem;
}

.hero-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.hero-media {
  position: relative;
  overflow: hidden;
}
.hero-media img {
  width: 100%;
  height: clamp(380px, 52vh, 540px);
  object-fit: cover;
}
.hero-media figcaption {
  position: absolute;
  left: 0; bottom: 0;
  background: var(--paper);
  padding: 0.6rem 1.1rem 0 0;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-media figcaption span {
  color: var(--ink);
  font-weight: 600;
  margin-right: 0.5rem;
}

.hero-foot {
  display: flex;
  align-items: flex-end;
  gap: clamp(2rem, 5vw, 4.5rem);
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.8rem;
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--line);
}
.stat { flex-shrink: 0; }
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 3.6vw, 3rem);
  font-weight: 350;
  color: var(--ink);
  line-height: 1.1;
}
.stat-num::after {
  content: "+";
  color: var(--bronze);
  font-size: 0.55em;
  vertical-align: 0.45em;
  margin-left: 2px;
}
.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-note {
  margin-left: auto;
  max-width: 300px;
  font-size: 0.86rem;
  color: var(--muted);
  text-align: right;
}

/* =====================================================
   Marquee
   ===================================================== */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1.05rem 0;
  background: var(--paper-deep);
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 2.6rem;
  width: max-content;
  animation: marquee 38s linear infinite;
}
.marquee-track span {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.02rem;
  color: var(--ink-soft);
  white-space: nowrap;
}
.marquee-track .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--bronze);
  flex-shrink: 0;
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* =====================================================
   Sections — shared
   ===================================================== */
.section { padding: clamp(5rem, 10vw, 8.5rem) 0; }

.sec-head {
  display: flex;
  align-items: baseline;
  gap: 1.4rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.1rem;
  margin-bottom: clamp(2.8rem, 6vw, 4.5rem);
}
.sec-num {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-style: italic;
  color: var(--bronze);
}
.sec-title {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink);
}
.sec-sub {
  margin-left: auto;
  max-width: 380px;
  font-size: 0.9rem;
  color: var(--muted);
  text-align: right;
}

/* =====================================================
   Tentang
   ===================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
}
.about-lede {
  font-size: clamp(1.7rem, 3.6vw, 2.9rem);
  font-weight: 380;
  max-width: 21ch;
}
.about-body {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: start;
}
.about-cols p + p { margin-top: 1.2rem; }
.about-cols p { max-width: 55ch; }

.about-principles {
  list-style: none;
  display: grid;
  gap: 0;
}
.about-principles li {
  display: flex;
  gap: 1.3rem;
  padding: 1.3rem 0;
  border-top: 1px solid var(--line-soft);
}
.about-principles li:last-child { border-bottom: 1px solid var(--line-soft); }
.pr-num {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--bronze);
  font-size: 1rem;
  min-width: 1.6rem;
  padding-top: 0.1rem;
}
.about-principles h3 {
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-bottom: 0.25rem;
}
.about-principles p { font-size: 0.89rem; color: var(--muted); line-height: 1.55; }

.about-media {
  margin-top: clamp(3rem, 7vw, 5.5rem);
  position: relative;
  overflow: hidden;
}
.about-media img {
  width: 100%;
  height: clamp(300px, 48vw, 520px);
  object-fit: cover;
}
.about-media figcaption {
  position: absolute;
  left: 0; bottom: 0;
  background: var(--paper);
  padding: 0.6rem 1.1rem 0 0;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.about-media figcaption span { color: var(--ink); font-weight: 600; margin-right: 0.5rem; }

/* =====================================================
   Sektor — indeks editorial
   ===================================================== */
.sectors { background: var(--paper); padding-top: 0; }

.sector-index { list-style: none; }
.sector-row {
  display: grid;
  grid-template-columns: 3.2rem 1fr 1.15fr auto;
  gap: clamp(1rem, 3vw, 2.5rem);
  align-items: baseline;
  padding: 1.7rem 0;
  border-top: 1px solid var(--line);
  transition: background 0.35s, padding 0.35s var(--ease);
}
.sector-index li:last-child { border-bottom: 1px solid var(--line); }
.sector-row:hover { background: var(--paper-deep); padding-left: 1rem; padding-right: 1rem; }

.sr-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--bronze);
}
.sr-name {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 400;
  transition: color 0.3s;
}
.sector-row:hover .sr-name { color: var(--bronze-deep); }
.sr-desc {
  font-size: 0.92rem;
  color: var(--muted);
  max-width: 46ch;
}
.sr-units {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-align: right;
  white-space: nowrap;
}

/* =====================================================
   Portfolio
   ===================================================== */
.portfolio { background: var(--white); border-top: 1px solid var(--line); }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1.6rem;
  margin-bottom: clamp(2.2rem, 5vw, 3.2rem);
}
.filter-btn {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  background: none;
  border: none;
  padding: 0 0 0.35rem;
  color: var(--muted);
  cursor: pointer;
  position: relative;
  transition: color 0.3s;
}
.filter-btn sup {
  font-size: 0.62rem;
  color: var(--bronze);
  margin-left: 3px;
}
.filter-btn::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.filter-btn:hover { color: var(--ink); }
.filter-btn.active { color: var(--ink); }
.filter-btn.active::after { transform: scaleX(1); }

.work-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: clamp(1.2rem, 3vw, 2.4rem);
  row-gap: clamp(2.8rem, 6vw, 4.5rem);
}
.work { grid-column: span 4; }
.work:nth-child(6n + 1),
.work:nth-child(6n + 5) { grid-column: span 5; }
.work:nth-child(6n + 3),
.work:nth-child(6n + 4) { grid-column: span 3; }
.work.hidden { display: none; }

.work-media {
  display: block;
  overflow: hidden;
  margin-bottom: 1.1rem;
  background: var(--paper-deep);
}
.work-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 1.1s var(--ease), filter 0.6s;
}
.work:hover .work-media img { transform: scale(1.045); }

.work-meta {
  display: flex;
  gap: 0.9rem;
  align-items: baseline;
}
.work-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--bronze);
}
.work-meta h3 {
  font-size: 1.28rem;
  font-weight: 450;
  line-height: 1.25;
}
.work-cat {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 0.3rem;
}
.work-desc {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-top: 0.7rem;
  max-width: 44ch;
  line-height: 1.6;
}

/* =====================================================
   CTA
   ===================================================== */
.cta {
  background: var(--ink);
  color: rgba(247, 243, 236, 0.75);
  padding: clamp(5rem, 11vw, 8.5rem) 0;
}
.cta .meta-line { color: rgba(247, 243, 236, 0.5); margin-bottom: 2rem; }
.cta .meta-line .tick { background: var(--bronze); }
.cta-title {
  color: var(--paper);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 380;
  margin-bottom: 1.4rem;
}
.cta-title em { color: #cf9d55; }
.cta-sub { max-width: 480px; margin-bottom: 2.6rem; }
.cta .link-line { color: var(--paper); }
.cta .link-line::after { background: #cf9d55; }
.cta .link-line:hover { color: #cf9d55; }

/* =====================================================
   Kontak
   ===================================================== */
.contact { background: var(--paper); }
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(3rem, 7vw, 6rem);
  align-items: start;
}
.contact-lede {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 380;
  margin-bottom: 2.4rem;
  max-width: 18ch;
}
.contact-list { display: grid; gap: 0; }
.contact-list > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 1.05rem 0;
  border-top: 1px solid var(--line);
}
.contact-list > div:last-child { border-bottom: 1px solid var(--line); }
.contact-list dt {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-list dd { font-size: 1rem; color: var(--ink); }
.contact-list dd a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.3s, color 0.3s;
}
.contact-list dd a:hover { color: var(--bronze-deep); border-color: var(--bronze-deep); }

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 2rem;
}
.form-group { margin-bottom: 1.9rem; }
.form-group label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.45rem;
}
.form-group input,
.form-group textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  padding: 0.5rem 0;
  border-radius: 0;
  transition: border-color 0.3s;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #b3a893; }
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-bottom-color: var(--ink);
}

.submit-btn {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0.85rem 2.1rem;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
}
.submit-btn:hover { background: transparent; color: var(--ink); }
.submit-btn .arr { display: inline-block; transition: transform 0.35s var(--ease); }
.submit-btn:hover .arr { transform: translateX(4px); }

.form-status {
  margin-top: 1rem;
  font-size: 0.88rem;
  font-weight: 500;
  min-height: 1.4em;
}
.form-status.ok { color: #4a6741; }
.form-status.err { color: #a03d2e; }

/* =====================================================
   Footer
   ===================================================== */
.footer {
  background: var(--ink);
  color: rgba(247, 243, 236, 0.6);
  border-top: 1px solid rgba(247, 243, 236, 0.08);
}
.footer-top {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0 2.5rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-word {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 380;
  color: var(--paper);
  line-height: 1;
}
.footer-word em { font-style: italic; color: #cf9d55; font-weight: 350; }
.footer-tag { max-width: 340px; font-size: 0.88rem; }

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  padding: 2.5rem 0 3rem;
  border-top: 1px solid rgba(247, 243, 236, 0.12);
}
.footer-col h4 {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(247, 243, 236, 0.45);
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  color: rgba(247, 243, 236, 0.72);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 0.55rem;
  transition: color 0.3s;
}
.footer-col a:hover { color: #cf9d55; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid rgba(247, 243, 236, 0.12);
  padding: 1.4rem 0 1.6rem;
  font-size: 0.8rem;
}
.to-top {
  color: rgba(247, 243, 236, 0.72);
  text-decoration: none;
  transition: color 0.3s;
}
.to-top:hover { color: #cf9d55; }

/* =====================================================
   Reveal animations
   ===================================================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }

.reveal-img {
  opacity: 0;
  transform: translateY(20px);
  clip-path: inset(6% 0 6% 0);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease), clip-path 1.1s var(--ease);
}
.reveal-img.visible {
  opacity: 1;
  transform: translateY(0);
  clip-path: inset(0 0 0 0);
}
.reveal-img.d2 { transition-delay: 0.16s; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-img { opacity: 1; transform: none; clip-path: none; transition: none; }
  .marquee-track { animation: none; }
  html { scroll-behavior: auto; }
}

/* =====================================================
   Responsive
   ===================================================== */
@media (max-width: 1020px) {
  .work { grid-column: span 6 !important; }
  .sector-row {
    grid-template-columns: 2.6rem 1fr auto;
  }
  .sr-desc { display: none; }
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; align-items: start; }
  .hero-copy { padding-bottom: 0; }
  .hero-media img { height: clamp(300px, 50vw, 460px); }
  .hero-foot { flex-wrap: wrap; gap: 2rem; }
  .hero-note { margin-left: 0; text-align: left; max-width: 100%; }
  .about-body { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .sec-sub { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding-left: clamp(1.5rem, 8vw, 4rem);
    gap: 1.6rem;
    background: var(--paper);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s;
  }
  .site-nav.open {
    opacity: 1;
    pointer-events: auto;
  }
  .site-nav a {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--ink);
  }
  .site-nav a span::before { font-size: 0.8rem; }
  .site-header.menu-open { background: var(--paper); }
}

@media (max-width: 640px) {
  .work { grid-column: span 12 !important; }
  .work-media img { aspect-ratio: 3 / 2; }
  .sector-row { grid-template-columns: 2.2rem 1fr; }
  .sr-units { display: none; }
  .contact-form .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .hero-links { gap: 1.6rem; }
}