/* ============================================================
   KNOT - STYLESHEET
   Palet warna & font diatur lewat variabel di :root di bawah.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  /* Palet warna KNOT */
  --navy:   #1b1b38;
  --taupe:  #cdc5b8;
  --black:  #1b1b1b;
  --cream:  #f4f3ee;
  --cream-soft: #eceade;

  /* Font */
  --font-serif:  'Libre Baskerville', 'Times New Roman', serif;
  --font-script: 'Libre Baskerville', 'Times New Roman', serif;

  --nav-height: 76px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-serif);
  background: var(--cream);
  color: var(--black);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ---------- Utilitas ---------- */
.container {
  width: min(1160px, 92%);
  margin-inline: auto;
}

.label {
  font-size: 0.72rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  opacity: 0.75;
}

.script {
  font-family: var(--font-script);
  font-weight: 400;
  font-style: italic;
  line-height: 1.3;
}

.section { padding: 7rem 0; }

.section-head {
  text-align: center;
  margin-bottom: 4rem;
}

.section-head .script {
  font-size: clamp(1.9rem, 3.8vw, 2.9rem);
  color: var(--navy);
}

.section-head .label { display: block; margin-bottom: 0.75rem; }

/* Animasi reveal saat scroll */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal.revealed { opacity: 1; transform: none; }

/* ---------- Tombol ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  padding: 0.95em 2.2em;
  border: 1px solid currentColor;
  transition: background 0.35s ease, color 0.35s ease, border-color 0.35s ease;
  text-align: center;
  cursor: pointer;
}

.btn-solid {
  background: var(--navy);
  color: var(--cream);
  border-color: var(--navy);
}
.btn-solid:hover {
  background: transparent;
  color: var(--navy);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: var(--cream);
}

/* Tombol di atas background gelap */
.on-dark .btn-solid {
  background: var(--cream);
  color: var(--navy);
  border-color: var(--cream);
}
.on-dark .btn-solid:hover {
  background: transparent;
  color: var(--cream);
}
.on-dark .btn-outline {
  color: var(--cream);
  border-color: var(--cream);
}
.on-dark .btn-outline:hover {
  background: var(--cream);
  color: var(--navy);
}

/* ---------- Navigasi ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  background: var(--cream);
  border-bottom: 1px solid rgba(27, 27, 27, 0.08);
  transition: background 0.4s ease, border-color 0.4s ease;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1160px, 92%);
  margin-inline: auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.nav-logo img { height: 22px; width: auto; }
.nav-logo span {
  font-size: 1.05rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.6rem;
  list-style: none;
}

.nav-links a:not(.btn) {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 4px;
}
.nav-links a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s ease;
}
.nav-links a:not(.btn):hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-links .btn { padding: 0.7em 1.6em; }

/* Nav transparan di atas hero (halaman depan) */
.nav-transparent {
  background: transparent;
  border-bottom-color: transparent;
  color: var(--cream);
}
.nav-transparent .btn-outline { color: var(--cream); border-color: var(--cream); }
.nav-transparent .btn-outline:hover { background: var(--cream); color: var(--navy); }
.nav-transparent.nav-scrolled {
  background: var(--navy);
  border-bottom-color: rgba(244, 243, 238, 0.12);
}

/* Menu mobile */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0.4rem;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: currentColor;
  margin: 6px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ---------- Hero (halaman depan) ---------- */
.hero {
  min-height: 100svh;
  position: relative;
  overflow: hidden;
  /* Lapisan: cahaya lembut di tengah + gradasi gelap ke bawah */
  background:
    radial-gradient(ellipse 95% 70% at 50% 34%, rgba(64, 64, 118, 0.55) 0%, rgba(64, 64, 118, 0) 68%),
    linear-gradient(180deg, #22224494 0%, var(--navy) 48%, #121226 100%),
    var(--navy);
  color: var(--cream);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 3rem) 6% 5rem;
}

/* Tekstur grain tipis supaya tidak terasa flat digital */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.055;
  pointer-events: none;
}

.hero > * { position: relative; z-index: 1; }

/* Video background hero (assets/hero.mp4).
   opacity = seberapa terlihat videonya di balik tint navy;
   naikkan (maks 1) kalau mau lebih jelas, turunkan kalau teks kurang terbaca. */
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.45;
  pointer-events: none;
}

/* Bingkai garis tipis ala kartu undangan */
.hero-frame {
  position: absolute;
  inset: clamp(14px, 2.2vw, 26px);
  border: 1px solid rgba(205, 197, 184, 0.22);
  pointer-events: none;
  z-index: 1;
}

.hero-logo { height: 54px; width: auto; margin-bottom: 2.4rem; opacity: 0.92; }

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 7vw, 4.8rem);
  font-weight: 400;
  letter-spacing: 0.42em;
  margin-right: -0.42em; /* kompensasi trailing space letter-spacing agar tetap center */
  text-transform: uppercase;
  color: var(--taupe);
  line-height: 1.15;
}

.hero-sub {
  margin-top: 1.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  opacity: 0.7;
}

.hero-cta {
  margin-top: 3.2rem;
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-scroll {
  margin-top: 4.5rem;
  font-size: 0.62rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  opacity: 0.5;
}

/* Garis vertikal halus yang "bernafas" di bawah teks scroll */
.hero-scroll::after {
  content: "";
  display: block;
  width: 1px;
  height: 42px;
  margin: 1.1rem auto 0;
  background: linear-gradient(180deg, var(--taupe), transparent);
  animation: scroll-line 2.6s ease-in-out infinite;
  transform-origin: top;
}

@keyframes scroll-line {
  0%, 100% { transform: scaleY(0.35); opacity: 0.4; }
  50%      { transform: scaleY(1);    opacity: 0.9; }
}

/* ---------- Explore / lifestyle ---------- */
.explore-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 5rem;
  align-items: center;
}

.explore-image {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--taupe);
}
.explore-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s ease;
}
.explore-image:hover img { transform: scale(1.04); }

.explore-text .script {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  color: var(--navy);
  margin: 0.6rem 0 1.6rem;
}

.explore-text p { margin-bottom: 1.4rem; opacity: 0.85; }

.explore-text .btn { margin-top: 1rem; }

/* ---------- Produk ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
}

.product-card {
  background: #fff;
  transition: transform 0.45s ease, box-shadow 0.45s ease;
  cursor: pointer;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -24px rgba(27, 27, 56, 0.28);
}

.product-image {
  /* 1:1 mengikuti template foto produk KNOT (1000x1000).
     Foto dengan rasio lain tetap aman: tampil utuh tanpa terpotong. */
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #fff;
}
.product-image img {
  width: 100%;
  height: 100%;
  /* contain = foto tampil utuh tanpa terpotong; latar foto putih menyatu dengan kartu */
  object-fit: contain;
  transition: transform 0.9s ease;
}
.product-card:hover .product-image img { transform: scale(1.05); }

/* Hint "View Details" muncul saat kartu di-hover */
.product-image { position: relative; }
.product-view {
  position: absolute;
  left: 50%;
  bottom: 1.1rem;
  transform: translate(-50%, 8px);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--navy);
  background: rgba(244, 243, 238, 0.92);
  padding: 0.55em 1.4em;
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
  white-space: nowrap;
}
.product-card:hover .product-view {
  opacity: 1;
  transform: translate(-50%, 0);
}

.product-info {
  padding: 1.6rem 1.5rem 1.9rem;
  text-align: center;
}

.product-name {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.product-colorway {
  font-family: var(--font-script);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--navy);
  margin-top: 0.4rem;
}

.product-price {
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  margin: 0.7rem 0 1.3rem;
  opacity: 0.75;
}

.product-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.product-buttons .btn { padding: 0.85em 1em; }

.collection-more {
  text-align: center;
  margin-top: 3.5rem;
}

/* ---------- Popup detail produk ---------- */
body.modal-open { overflow: hidden; }

.product-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4svh 4%;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.product-modal.open { visibility: visible; opacity: 1; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 17, 36, 0.78);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

.modal-card {
  position: relative;
  background: #fff;
  width: min(1200px, 100%);  /* UKURAN POPUP: angka ini yang dibesarkan/dikecilkan */
  max-height: 92svh;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  transform: translateY(16px);
  transition: transform 0.35s ease;
}
.product-modal.open .modal-card { transform: none; }

.modal-close,
.buy-close {
  position: absolute;
  top: 0.6rem;
  right: 0.9rem;
  z-index: 2;
  background: none;
  border: none;
  font-size: 1.9rem;
  font-family: var(--font-serif);
  color: var(--black);
  cursor: pointer;
  line-height: 1;
  opacity: 0.6;
  transition: opacity 0.3s ease;
}
.modal-close:hover,
.buy-close:hover { opacity: 1; }

/* ---------- Popup pilihan platform belanja (Shopee / TikTok) ---------- */
.buy-modal {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5svh 6%;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.buy-modal.open { visibility: visible; opacity: 1; }

.buy-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 17, 36, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.buy-card {
  position: relative;
  background: #fff;
  width: min(430px, 100%);
  padding: 2.8rem 2.4rem 2.5rem;
  text-align: center;
  transform: translateY(14px);
  transition: transform 0.3s ease;
}
.buy-modal.open .buy-card { transform: none; }

.buy-title {
  font-weight: 400;
  font-size: 1.02rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0.5rem 0 0.7rem;
}

.buy-sub {
  font-size: 0.83rem;
  line-height: 1.6;
  opacity: 0.7;
  margin-bottom: 1.7rem;
}

.buy-options {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.modal-image {
  position: relative;
  background: #fbfaf7;
  overflow: hidden;
}
.modal-image img {
  width: 100%;
  height: 100%;
  min-height: 620px;  /* TINGGI FOTO POPUP: makin besar angka, makin besar fotonya */
  object-fit: contain;
}

.modal-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border: 1px solid var(--navy);
  background: rgba(244, 243, 238, 0.9);
  color: var(--navy);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
}
.modal-arrow:hover { background: var(--navy); color: var(--cream); }
.modal-prev { left: 14px; }
.modal-next { right: 14px; }

.modal-dots {
  position: absolute;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
}
.modal-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--navy);
  opacity: 0.28;
  transition: opacity 0.3s ease;
}
.modal-dots span.active { opacity: 0.95; }

.modal-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.5rem;
  padding: 3rem 2.5rem;
}
.modal-info .product-name { font-size: 1.15rem; }
.modal-info .product-colorway { font-size: 1.05rem; }
.modal-info .product-price { margin: 0.4rem 0 1.4rem; }
.modal-info .btn { min-width: 200px; }

@media (max-width: 760px) {
  .modal-card {
    grid-template-columns: 1fr;
    overflow-y: auto;
  }
  .modal-image img { min-height: 0; aspect-ratio: 4 / 5; }
  .modal-info { padding: 2rem 1.6rem 2.4rem; }
}

/* ---------- Banner hook ---------- */
.hook {
  background: var(--taupe);
  color: var(--navy);
  text-align: center;
  padding: 6.5rem 6%;
}

.hook .script { font-size: clamp(1.9rem, 4vw, 3rem); }

.hook p {
  max-width: 46ch;
  margin: 1.4rem auto 2.6rem;
  opacity: 0.85;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 760px;
  margin-inline: auto;
}

.faq-item {
  border-bottom: 1px solid rgba(27, 27, 27, 0.14);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.7rem 0.2rem;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--navy);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-answer {
  padding: 0 2.5rem 1.8rem 0.2rem;
  font-size: 0.92rem;
  opacity: 0.8;
}

/* ---------- Header halaman dalam (Catalog & FAQ) ---------- */
.page-header {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 95% 120% at 50% 20%, rgba(64, 64, 118, 0.5) 0%, rgba(64, 64, 118, 0) 70%),
    linear-gradient(180deg, #22224494 0%, var(--navy) 60%, #15152c 100%),
    var(--navy);
  color: var(--cream);
  text-align: center;
  padding: calc(var(--nav-height) + 5.5rem) 6% 5.5rem;
}

.page-header::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.055;
  pointer-events: none;
}

.page-header > * { position: relative; z-index: 1; }
.page-header .script {
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  color: var(--taupe);
}
.page-header .label { display: block; margin-bottom: 0.8rem; }

/* ---------- Footer ---------- */
.footer {
  background: var(--navy);
  color: var(--cream);
  padding: 5rem 0 2.5rem;
  text-align: center;
}

.footer-logo { height: 34px; width: auto; margin: 0 auto 1.2rem; opacity: 0.9; }

.footer-brand {
  letter-spacing: 0.44em;
  text-transform: uppercase;
  font-size: 0.95rem;
}

.footer-tagline {
  font-family: var(--font-script);
  font-style: italic;
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--taupe);
  margin: 1rem 0 2.4rem;
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 2.6rem;
  list-style: none;
  margin-bottom: 3rem;
}
.footer-social a {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}
.footer-social a:hover { opacity: 1; }

.footer-copy {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  opacity: 0.45;
  text-transform: uppercase;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .section { padding: 5rem 0; }

  .explore-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 1.4rem; }
}

@media (max-width: 640px) {
  .nav-toggle { display: block; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    flex-direction: column;
    gap: 2rem;
    background: var(--navy);
    color: var(--cream);
    padding: 3rem 6% 3.5rem;
    transform: translateY(-130%);
    transition: transform 0.45s ease;
    z-index: -1;
  }
  body.nav-open .nav-links { transform: translateY(0); }
  body.nav-open .nav { background: var(--navy); color: var(--cream); }
  .nav-links .btn-outline { color: var(--cream); border-color: var(--cream); }

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

  .hero-cta .btn { width: 100%; }
}