/* FZ Bina & Renovasi (demo Webg). Baca DESIGN.md sebelum ubah. */

@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/montserrat-var.woff2') format('woff2');
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --dark: #1E293B;
  --darker: #0F172A;
  --white: #FFFFFF;
  --amber: #F59E0B;
  --amber-dark: #B45309;
  --slate-soft: #334155;
  --gray-line: #E2E8F0;
  --gray-text: #64748B;
  --gray-text-dark: #B8C4D4;
  --wa: #22C55E;
  --radius: 6px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Montserrat', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--dark);
  background: var(--white);
  padding-bottom: 3.25rem; /* ruang untuk ribbon Webg */
  overflow-x: hidden;
}

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

a { color: inherit; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

section { padding: clamp(4rem, 9vw, 6.5rem) 0; scroll-margin-top: 5rem; }

.sec-dark { background: var(--dark); color: var(--white); }
.sec-dark .sec-lead { color: var(--gray-text-dark); }
.sec-light { background: var(--white); color: var(--dark); }
.sec-light .sec-lead { color: var(--gray-text); }

/* ---------- Tipografi ---------- */

.kicker {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  border-left: 4px solid var(--amber);
  padding-left: 0.75rem;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.25rem, 7vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

h3 { font-weight: 700; line-height: 1.3; }

.sec-head { max-width: 640px; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.sec-lead { font-size: 1.05rem; }

.hl { color: var(--amber); }

/* ---------- Butang ---------- */

.btn {
  display: inline-block;
  border-radius: var(--radius);
  padding: 0.85rem 1.6rem;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-amber {
  background: var(--amber);
  color: var(--darker);
  border-color: var(--amber);
}
.btn-amber:hover { background: var(--amber-dark); border-color: var(--amber-dark); color: var(--white); }

.btn-ghost { background: transparent; border-color: var(--white); color: var(--white); }
.btn-ghost:hover { background: var(--white); color: var(--dark); }

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--dark);
  border-bottom: 3px solid var(--amber);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}

.logo {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--white);
  text-decoration: none;
  white-space: nowrap;
}
.logo .logo-blok {
  background: var(--amber);
  color: var(--darker);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius);
  margin-left: 0.25rem;
}
.logo small {
  display: block;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gray-text-dark);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}
.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}
.nav-links a:hover { color: var(--amber); }
.nav-links .btn { padding: 0.6rem 1.1rem; font-size: 0.85rem; }

.nav-burger {
  display: none;
  background: none;
  border: 2px solid var(--amber);
  border-radius: var(--radius);
  padding: 0.5rem 0.6rem;
  cursor: pointer;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 3px;
  background: var(--amber);
  margin: 4px 0;
  transition: transform 0.2s, opacity 0.2s;
}
.nav.open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav-burger span:nth-child(2) { opacity: 0; }
.nav.open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero { padding-top: clamp(3.5rem, 8vw, 6rem); }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.hero p.hero-lead {
  color: var(--gray-text-dark);
  font-size: 1.1rem;
  margin: 1.25rem 0 2rem;
  max-width: 34rem;
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-bottom: 2.5rem; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  border-top: 3px solid var(--slate-soft);
  padding-top: 1.5rem;
}
.stat b {
  display: block;
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 800;
  color: var(--amber);
  line-height: 1.1;
}
.stat span {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-text-dark);
}

.hero-art { width: 100%; }

/* ---------- Grid kad ---------- */

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

/* ---------- Servis ---------- */

.card-servis {
  border: 2px solid var(--gray-line);
  border-top: 4px solid var(--amber);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
}
.card-servis h3 { font-size: 1.1rem; margin: 1rem 0 0.5rem; }
.card-servis p { font-size: 0.95rem; color: var(--gray-text); }

.ikon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: rgba(245, 158, 11, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
}
.ikon svg { width: 26px; height: 26px; stroke: var(--amber-dark); }

/* ---------- Galeri projek ---------- */

.card-projek {
  border: 2px solid var(--slate-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--darker);
}
.card-projek figcaption {
  padding: 1rem 1.25rem;
  border-top: 3px solid var(--amber);
}
.card-projek figcaption b {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
}
.card-projek figcaption span {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--amber);
}

/* ---------- Proses ---------- */

.langkah .no {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--amber);
  line-height: 1;
}
.langkah .no::after {
  content: "";
  display: block;
  width: 3rem;
  height: 4px;
  background: var(--amber);
  margin: 0.75rem 0 1rem;
}
.langkah h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.langkah p { font-size: 0.95rem; color: var(--gray-text); }

/* ---------- Kenapa kami ---------- */

.poin {
  border: 2px solid var(--slate-soft);
  border-left: 4px solid var(--amber);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: var(--darker);
}
.poin h3 { font-size: 1.05rem; margin-bottom: 0.5rem; color: var(--white); }
.poin p { font-size: 0.95rem; color: var(--gray-text-dark); }

/* ---------- Testimoni ---------- */

.card-testi {
  border: 2px solid var(--gray-line);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.card-testi .bintang { color: var(--amber); font-size: 1rem; letter-spacing: 0.2em; }
.card-testi blockquote { font-size: 0.98rem; color: var(--dark); }
.card-testi figcaption { margin-top: auto; }
.card-testi figcaption b { display: block; font-size: 0.9rem; }
.card-testi figcaption span { font-size: 0.8rem; color: var(--gray-text); }

/* ---------- FAQ ---------- */

.faq-list { max-width: 760px; display: grid; gap: 0.85rem; }

.faq-item {
  border: 2px solid var(--slate-soft);
  border-radius: var(--radius);
  background: var(--darker);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 1.1rem 1.25rem;
  font: inherit;
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--white);
  text-align: left;
}
.faq-q .tanda {
  flex: 0 0 auto;
  color: var(--amber);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.2s;
}
.faq-item.open .faq-q .tanda { transform: rotate(45deg); }
.faq-a {
  display: none;
  padding: 0 1.25rem 1.25rem;
  color: var(--gray-text-dark);
  font-size: 0.95rem;
  border-top: 2px solid var(--slate-soft);
  padding-top: 1rem;
  margin: 0 0;
}
.faq-item.open .faq-a { display: block; }

/* ---------- CTA akhir ---------- */

.cta-panel {
  background: var(--amber);
  color: var(--darker);
  border-radius: var(--radius);
  padding: clamp(2rem, 6vw, 3.5rem);
}
.cta-panel h2 { margin-bottom: 0.75rem; }
.cta-panel p { font-weight: 600; max-width: 36rem; margin-bottom: 1.75rem; }
.cta-panel .btn {
  background: var(--darker);
  color: var(--white);
  border-color: var(--darker);
}
.cta-panel .btn:hover { background: var(--dark); border-color: var(--dark); }
.cta-panel .nota { font-size: 0.85rem; font-weight: 600; margin: 1rem 0 0; }

/* ---------- Footer ---------- */

.footer {
  background: var(--darker);
  color: var(--gray-text-dark);
  padding: 2.5rem 0;
  font-size: 0.85rem;
}
.footer .logo { font-size: 1rem; }
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: space-between;
  align-items: flex-start;
}
.footer p { max-width: 30rem; }
.footer a { color: var(--amber); }

/* ---------- Ribbon Webg ---------- */

.ribbon {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  background: var(--amber);
  color: var(--darker);
  text-align: center;
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 -2px 10px rgba(15, 23, 42, 0.25);
}
.ribbon a { color: var(--darker); text-decoration: underline; }

/* ---------- Responsif ---------- */

@media (max-width: 820px) {
  .nav-burger { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--dark);
    border-bottom: 3px solid var(--amber);
    padding: 0.5rem 1.25rem 1.25rem;
  }
  .nav.open .nav-links { display: flex; }
  .nav-links li { border-top: 1px solid var(--slate-soft); }
  .nav-links li:last-child { border-top: 0; padding-top: 1rem; }
  .nav-links a { display: block; padding: 0.85rem 0; }
  .nav-links .btn { text-align: center; }
  .ribbon { font-size: 0.8rem; }
}

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 960px) {
  .container { padding: 0 2rem; }
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .hero-grid { grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); }
}