/* Music City — ebony atelier */
:root {
  --ink: #12110f;
  --ink-soft: #2a2824;
  --muted: #6b655c;
  --line: rgba(18, 17, 15, 0.12);
  --paper: #f4efe6;
  --paper-2: #ebe4d8;
  --white: #fffcf7;
  --brass: #c4a574;
  --brass-deep: #a8874f;
  --brass-soft: rgba(196, 165, 116, 0.18);
  --shadow: 0 18px 50px rgba(18, 17, 15, 0.12);
  --radius: 6px;
  --max: 1120px;
  --header-h: 76px;
  --font-display: "Noto Serif TC", "Songti TC", serif;
  --font-body: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1000px 500px at 0% -10%, var(--brass-soft), transparent 55%),
    radial-gradient(800px 400px at 100% 0%, rgba(18, 17, 15, 0.04), transparent 50%),
    var(--paper);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  background: none;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--brass);
  color: var(--ink);
  padding: 0.5rem 1rem;
  z-index: 1000;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 239, 230, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  height: var(--header-h);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.logo-text strong {
  font-family: var(--font-display);
  font-size: 0.98rem;
  letter-spacing: 0.04em;
}
.logo-text span {
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: auto;
  position: relative;
  transition: 0.25s var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: auto;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav > a,
.nav-item > a {
  padding: 0.4rem 0.55rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
}
.nav > a:hover,
.nav-item > a:hover,
.nav > a[aria-current="page"],
.nav-item > a[aria-current="page"] {
  color: var(--ink);
  background: var(--brass-soft);
}

.nav-item {
  position: relative;
}
.nav-item .submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.4rem;
  z-index: 50;
}
.nav-item:hover .submenu,
.nav-item:focus-within .submenu {
  display: block;
}
.submenu a {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  border-radius: 4px;
}
.submenu a:hover {
  background: var(--brass-soft);
}

.header-phone {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  margin-left: 0.75rem;
  padding: 0.35rem 0.75rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius);
  flex-shrink: 0;
  line-height: 1.2;
}
.header-phone small {
  font-size: 0.65rem;
  color: var(--brass);
  letter-spacing: 0.06em;
}
.header-phone span {
  font-weight: 700;
  font-size: 0.95rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: clamp(360px, 55vh, 560px);
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
}
.hero-media {
  position: absolute;
  inset: 0;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 3.5rem 0 3rem;
}
.hero-brand {
  color: var(--brass);
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.5vw, 2.35rem);
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 1rem;
  max-width: 18em;
}
.hero p {
  max-width: 36em;
  margin: 0 0 1.5rem;
  color: rgba(244, 239, 230, 0.88);
  font-size: 1.02rem;
}

/* Buttons */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s var(--ease), background 0.2s, color 0.2s;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn-brass {
  background: var(--brass);
  color: var(--ink);
}
.btn-brass:hover {
  background: var(--brass-deep);
}
.btn-ghost {
  border: 1px solid rgba(244, 239, 230, 0.45);
  color: var(--paper);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}
.btn-ink {
  background: var(--ink);
  color: var(--paper);
}
.btn-ink:hover {
  background: var(--ink-soft);
}
.btn-outline {
  border: 1px solid var(--ink);
  color: var(--ink);
}
.btn-outline:hover {
  background: var(--ink);
  color: var(--paper);
}

/* Sections */
.section {
  padding: 3.5rem 0;
}
.section-alt {
  background: var(--paper-2);
}
.section-dark {
  background: var(--ink);
  color: var(--paper);
}
.section-head {
  margin-bottom: 1.75rem;
}
.eyebrow {
  display: inline-block;
  color: var(--brass-deep);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.section-dark .eyebrow {
  color: var(--brass);
}
h2 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  line-height: 1.35;
  margin: 0 0 0.75rem;
  font-weight: 700;
}
h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.prose p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}
.section-dark .prose p {
  color: rgba(244, 239, 230, 0.85);
}
.prose a {
  color: var(--brass-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.section-dark .prose a {
  color: var(--brass);
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}
.split-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.split-media img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem;
  transition: box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.card-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--brass);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.85rem;
}
.card h3 {
  margin-bottom: 0.5rem;
}
.card p {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  color: var(--muted);
}
.card .more {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brass-deep);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  counter-reset: step;
}
.step {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem;
  position: relative;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--brass);
  color: var(--ink);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.steps-5 {
  grid-template-columns: repeat(5, 1fr);
}
@media (max-width: 900px) {
  .steps-5 { grid-template-columns: 1fr 1fr; }
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--white);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
th, td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
th {
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  white-space: nowrap;
}
tr:last-child td {
  border-bottom: 0;
}
tr:nth-child(even) td {
  background: rgba(196, 165, 116, 0.06);
}
.price {
  font-weight: 700;
  color: var(--brass-deep);
  white-space: nowrap;
}
.note {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.75rem;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-item summary {
  padding: 1rem 1.15rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--brass-deep);
  font-size: 1.25rem;
  line-height: 1;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-body {
  padding: 0 1.15rem 1.1rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* Product grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: grid;
  grid-template-columns: 140px 1fr;
}
.product-card img {
  width: 100%;
  height: 100%;
  min-height: 140px;
  object-fit: cover;
  background: var(--paper-2);
}
.product-body {
  padding: 1rem 1.15rem;
}
.product-body h3 {
  font-size: 1.05rem;
}
.product-price {
  color: var(--brass-deep);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0.35rem 0;
}

/* Breadcrumb */
.breadcrumb {
  padding: 1rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}
.breadcrumb a:hover {
  color: var(--brass-deep);
}
.breadcrumb span {
  margin: 0 0.35rem;
  opacity: 0.5;
}

.page-hero {
  position: relative;
  padding: 2.5rem 0 2rem;
  background: url("../img/img001.jpg") center / cover no-repeat;
  isolation: isolate;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.5);
  z-index: 0;
}
.page-hero > .container {
  position: relative;
  z-index: 1;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.35;
  margin: 0 0 0.85rem;
  max-width: 20em;
}
.page-hero .lead {
  max-width: 42em;
  color: var(--ink-soft);
  margin: 0;
  font-size: 1.02rem;
}

.cta-band {
  background: var(--ink);
  color: var(--paper);
  padding: 2.5rem 0;
  text-align: center;
}
.cta-band h2 {
  margin-bottom: 0.5rem;
}
.cta-band p {
  color: rgba(244, 239, 230, 0.8);
  max-width: 36em;
  margin: 0 auto 1.25rem;
}

/* Factors / list */
.factor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.factor {
  background: var(--white);
  border-left: 3px solid var(--brass);
  padding: 1rem 1.15rem;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.factor h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}
.factor p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.area-list {
  columns: 2;
  gap: 2rem;
  margin: 0;
  padding-left: 1.25rem;
}
.area-list li {
  margin-bottom: 0.35rem;
  color: var(--ink-soft);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.case-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.case-card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}
.case-card .case-body {
  padding: 1.1rem;
}
.case-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.contact-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.contact-card dt {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 1rem;
}
.contact-card dt:first-child { margin-top: 0; }
.contact-card dd {
  margin: 0.25rem 0 0;
  font-size: 1.05rem;
  font-weight: 600;
}
.form-field {
  margin-bottom: 1rem;
}
.form-field label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  font: inherit;
}
.form-field textarea {
  min-height: 120px;
  resize: vertical;
}
.map-embed {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  margin-top: 1.5rem;
}
.map-embed iframe {
  width: 100%;
  height: 320px;
  border: 0;
  display: block;
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(244, 239, 230, 0.85);
  padding: 3rem 0 1.5rem;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-brand strong {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--paper);
  display: block;
  margin-bottom: 0.5rem;
}
.footer-brand .aka {
  color: var(--brass);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}
.footer-col h4 {
  color: var(--brass);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 0.85rem;
  font-weight: 600;
}
.footer-col a {
  display: block;
  padding: 0.25rem 0;
  color: rgba(244, 239, 230, 0.75);
}
.footer-col a:hover {
  color: var(--brass);
}
.footer-blurb {
  border-top: 1px solid rgba(244, 239, 230, 0.12);
  padding-top: 1.5rem;
  font-size: 0.78rem;
  line-height: 1.7;
  color: rgba(244, 239, 230, 0.55);
}
.footer-bottom {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(244, 239, 230, 0.12);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: rgba(244, 239, 230, 0.5);
}

/* WhatsApp float */
.wa-float {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #25d366;
  color: #fff;
  padding: 0.75rem 1.1rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.92rem;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
  transition: transform 0.2s var(--ease);
}
.wa-float:hover {
  transform: scale(1.04);
}
.wa-float svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.perk-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem 1.5rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}
.perk-list li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.perk-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--brass);
}
.quote-banner {
  margin: 1.5rem 0 0;
  padding: 1.25rem 1.5rem;
  background: var(--ink);
  color: var(--paper);
  border-left: 4px solid var(--brass);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.55;
}
@media (max-width: 760px) {
  .perk-list { grid-template-columns: 1fr; }
}
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Responsive */
@media (max-width: 980px) {
  .card-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .factor-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .header-phone { display: none; }
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 1rem 1rem;
    margin: 0;
    gap: 0;
    box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .nav > a,
  .nav-item > a {
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid var(--line);
  }
  .nav-item .submenu {
    position: static;
    display: none;
    box-shadow: none;
    border: 0;
    background: transparent;
    padding: 0 0 0.5rem 0.75rem;
  }
  .nav-item.open .submenu { display: block; }
  .card-grid { grid-template-columns: 1fr; }
  .product-card { grid-template-columns: 1fr; }
  .product-card img { aspect-ratio: 16/10; min-height: 0; }
  .area-list { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; }
  .wa-float span { display: none; }
  .wa-float { padding: 0.9rem; border-radius: 50%; }
}