:root {
  --paper: #f5f5f1;
  --ink: #15171b;
  --muted: #6b6d76;
  --surface: #ffffff;
  --border: #e3e1d9;
  --primary: #4433d6;
  --primary-dark: #372aae;
  --primary-soft: #ece9fb;
  --accent: #d6f23c;
  --accent-ink: #20250a;
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow:
    0 1px 2px rgba(21, 23, 27, 0.04), 0 12px 28px -14px rgba(21, 23, 27, 0.18);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}
body {
  margin: 0;
  overflow-x: hidden;
  max-width: 100vw;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
h3 {
  font-family: "Space Grotesk", sans-serif;
  margin: 0;
  letter-spacing: -0.01em;
}
.mono {
  font-family: "JetBrains Mono", monospace;
}
a {
  color: inherit;
}
button {
  font-family: inherit;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(
    circle,
    rgba(21, 23, 27, 0.06) 1px,
    transparent 1px
  );
  background-size: 22px 22px;
  -webkit-mask-image: radial-gradient(
    ellipse 80% 55% at 70% 0%,
    black 30%,
    transparent 75%
  );
  mask-image: radial-gradient(
    ellipse 80% 55% at 70% 0%,
    black 30%,
    transparent 75%
  );
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

/* NAV */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 12px 16px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 19px;
  flex: none;
}
.brand-mark {
  width: 30px;
  height: 30px;
  flex: none;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
  flex: 1 1 auto;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14.5px;
  color: var(--muted);
  flex: none;
}
.nav-links a {
  text-decoration: none;
  transition: color 0.15s;
}
.nav-links a:hover {
  color: var(--ink);
}
.nav-cta {
  background: var(--ink);
  color: var(--paper);
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  flex: none;
}
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
}
.lang-btn {
  border: none;
  background: transparent;
  padding: 6px 11px;
  border-radius: 999px;
  cursor: pointer;
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.03em;
  transition: 0.15s;
}
.lang-btn.active {
  background: var(--ink);
  color: var(--paper);
}
.lang-btn:not(.active):hover {
  color: var(--ink);
}

/* HERO */
.hero {
  padding: 36px 0 64px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.hero h1 {
  font-size: 44px;
  line-height: 1.08;
  max-width: 640px;
  margin-bottom: 16px;
}
.hero h1 em {
  font-style: normal;
  color: var(--primary);
}
.hero p.lead {
  font-size: 16.5px;
  color: var(--muted);
  max-width: 520px;
  line-height: 1.6;
  margin-bottom: 0;
}

.studio {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  margin-top: 40px;
  align-items: start;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 26px;
  min-width: 0;
}
.panel h3 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 16px;
}

/* TABS */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 5px;
  background: var(--paper);
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 20px;
}
.tab {
  flex: 1 1 auto;
  text-align: center;
  padding: 9px 10px;
  border-radius: 9px;
  border: none;
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: 0.15s;
  white-space: nowrap;
}
.tab.active {
  background: var(--ink);
  color: var(--paper);
}
.tab:not(.active):hover {
  background: #eae9e3;
}

.field-group {
  display: none;
}
.field-group.active {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  display: block;
  margin-bottom: 6px;
}
.hint {
  font-size: 12px;
  color: var(--muted);
  margin-top: 5px;
  line-height: 1.4;
}
input[type="text"],
input[type="url"],
input[type="tel"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 11px 13px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 14.5px;
  font-family: inherit;
  background: var(--paper);
  color: var(--ink);
  transition:
    border-color 0.15s,
    background 0.15s;
}
textarea {
  resize: vertical;
  min-height: 70px;
}
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--surface);
}
.row2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.checkline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--ink);
  font-weight: 500;
}
.checkline input {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

/* CUSTOMIZE ACCORDION */
.customize {
  margin-top: 22px;
}
details {
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 8px;
  overflow: hidden;
  background: var(--paper);
}
details[open] {
  background: var(--surface);
}
summary {
  padding: 13px 16px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
summary::-webkit-details-marker {
  display: none;
}
summary::after {
  content: "＋";
  font-size: 15px;
  color: var(--muted);
  transition: transform 0.2s;
}
details[open] summary::after {
  content: "－";
}
.details-body {
  padding: 4px 16px 18px;
}

.swatches {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.swatch {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.12s;
}
.swatch:hover {
  transform: translateY(-2px);
}
.swatch[data-active="true"] {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.color-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.color-row input[type="color"] {
  width: 38px;
  height: 38px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 0;
  cursor: pointer;
  background: none;
}
.color-row span {
  font-size: 13.5px;
  font-weight: 500;
  flex: 1;
}

.segmented {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}
.seg-btn {
  flex: 1;
  padding: 9px 4px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: 0.15s;
}
.seg-btn.active {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
}

.slider-row {
  margin-bottom: 14px;
}
.slider-row .slabel {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}
.slider-row .slabel .val {
  color: var(--primary);
  font-family: "JetBrains Mono", monospace;
  font-weight: 500;
}
input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
}

.logo-drop {
  border: 1.5px dashed var(--border);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: 0.15s;
  background: var(--surface);
}
.logo-drop:hover {
  border-color: var(--primary);
}
.logo-drop img {
  max-width: 52px;
  max-height: 52px;
  border-radius: 8px;
  margin-bottom: 6px;
}
.logo-drop .ld-text {
  font-size: 12.5px;
  color: var(--muted);
}
.logo-remove {
  margin-top: 10px;
  width: 100%;
  padding: 8px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: none;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
}

/* PREVIEW PANEL */
.preview-panel {
  position: sticky;
  top: 24px;
  text-align: center;
}
.viewfinder {
  position: relative;
  margin: 6px auto 20px;
  width: 100%;
  max-width: 340px;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.vf-corner {
  position: absolute;
  width: 26px;
  height: 26px;
  border: 3px solid var(--primary);
}
.vf-corner.tl {
  top: 0;
  left: 0;
  border-right: none;
  border-bottom: none;
  border-radius: 8px 0 0 0;
}
.vf-corner.tr {
  top: 0;
  right: 0;
  border-left: none;
  border-bottom: none;
  border-radius: 0 8px 0 0;
}
.vf-corner.bl {
  bottom: 0;
  left: 0;
  border-right: none;
  border-top: none;
  border-radius: 0 0 0 8px;
}
.vf-corner.br {
  bottom: 0;
  right: 0;
  border-left: none;
  border-top: none;
  border-radius: 0 0 8px 0;
}
#qrCanvas {
  width: 82%;
  height: 82%;
  border-radius: 14px;
}

.dims {
  font-family: "JetBrains Mono", monospace;
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 18px;
}
.export-row {
  display: flex;
  gap: 10px;
}
.fmt-select {
  flex: 0 0 92px;
  padding: 12px 8px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  font-weight: 600;
  font-size: 13.5px;
  background: var(--paper);
  text-align: center;
}
.btn-primary {
  flex: 1;
  background: var(--ink);
  color: var(--paper);
  border: none;
  border-radius: 10px;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 14.5px;
  cursor: pointer;
  transition: 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-primary:hover {
  background: var(--primary);
}
.btn-secondary {
  margin-top: 10px;
  width: 100%;
  background: none;
  border: 1.5px solid var(--border);
  color: var(--ink);
  border-radius: 10px;
  padding: 11px;
  font-weight: 600;
  font-size: 13.5px;
  cursor: pointer;
}
.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.copy-toast {
  font-size: 12px;
  color: var(--primary);
  margin-top: 8px;
  font-weight: 600;
  height: 16px;
}

.ec-note {
  margin-top: 16px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-size: 12px;
  text-align: left;
  display: none;
  line-height: 1.5;
}
.ec-note.show {
  display: block;
}

/* FEATURES */
.features {
  padding: 70px 0 40px;
}
.features-head {
  max-width: 520px;
  margin-bottom: 44px;
}
.features-head .eyebrow {
  margin-bottom: 14px;
}
.features-head h2 {
  font-size: 32px;
  margin-bottom: 12px;
}
.features-head p {
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.6;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.fcard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  transition:
    transform 0.15s,
    box-shadow 0.15s;
}
.fcard:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.fcard .ficon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.fcard h4 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 7px;
}
.fcard p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

footer {
  border-top: 1px solid var(--border);
  margin-top: 50px;
  padding: 26px 0 40px;
}
.foot-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.foot-row .brand {
  font-size: 15px;
}
.foot-row p {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}

@media (max-width: 960px) {
  .studio {
    grid-template-columns: 1fr;
  }
  .preview-panel {
    position: static;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero h1 {
    font-size: 34px;
  }
  .nav-links {
    display: none;
  }
}
@media (max-width: 640px) {
  .wrap {
    padding: 0 18px;
  }
  nav {
    padding: 16px 0;
    gap: 10px 12px;
  }
  .brand {
    font-size: 17px;
  }
  .brand-mark {
    width: 26px;
    height: 26px;
  }
  .nav-right {
    gap: 10px;
  }
  .lang-switch {
    order: 1;
  }
  .nav-cta {
    order: 2;
    padding: 8px 13px;
    font-size: 12.5px;
  }
  .hero {
    padding: 20px 0 44px;
  }
  .hero h1 {
    font-size: 27px;
  }
  .hero p.lead {
    font-size: 14.5px;
  }
  .eyebrow {
    font-size: 11px;
    padding: 5px 10px;
  }
  .panel {
    padding: 18px;
  }
  .studio {
    margin-top: 26px;
    gap: 16px;
  }

  /* Tabs jadi satu baris yang bisa digeser, tidak menumpuk */
  .tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .tabs::-webkit-scrollbar {
    display: none;
  }
  .tab {
    flex: 0 0 auto;
    padding: 9px 16px;
  }

  .segmented {
    flex-wrap: wrap;
  }
  .seg-btn {
    flex: 1 1 auto;
    min-width: 64px;
  }
  .export-row {
    flex-direction: column;
  }
  .fmt-select {
    flex: none;
    width: 100%;
  }
}
@media (max-width: 560px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .row2 {
    grid-template-columns: 1fr;
  }
  .wrap {
    padding: 0 18px;
  }
}
@media (max-width: 400px) {
  .hero h1 {
    font-size: 24px;
  }
  .brand {
    font-size: 15.5px;
  }
  .lang-btn {
    padding: 6px 9px;
    font-size: 11px;
  }
}