:root {
  --bg: #050816;
  --bg-soft: #0b1230;
  --bg-softer: #0f1638;
  --accent: #9f8bff;
  --accent-soft: #6f63ff;
  --text: #f5f2ff;
  --text-muted: #b3b0d0;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --radius-lg: 18px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.6);
  --font-serif: Playfair Display, "Georgia", "Times New Roman", serif;
}

html {
  font-size: 18px;
}

/* 當 <html lang="en"> 時，把整站字再放大一階 */
html[lang="en"] {
  font-size: 20px;
}
/* reset 簡版 */
*,
*::before,
*::after {
  box-sizing: border-box;
}

p {
  line-height: 1.8;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-serif);
  background:
    radial-gradient(circle at 20% 0%, #1b2745 0, #050814 55%, #02030a 100%);
  color: var(--text);
}

/* 容器 */

.container {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: linear-gradient(to bottom, rgba(5, 8, 22, 0.96), rgba(5, 8, 22, 0.8));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.8rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.brand-mark {
  font-size: 0.9rem;
  color: var(--accent);
}

.brand-name {
  font-family: var(--font-serif);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--text);
  text-decoration: none;
}

/* --- Hamburger button base --- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 200;
  margin-left: auto;
}

/* --- Hamburger bars --- */
.nav-toggle-bar {
  width: 24px;
  height: 2px;
  background: var(--accent);              /* 明顯的星光紫 */
  border-radius: 2px;
  /* margin: 3px 0; */
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); /* 加入貝茲曲線，動起來更絲滑 */
  position: absolute;
}
.nav-toggle-bar + .nav-toggle-bar {
  margin-top: 5px;  /* 拉大間距，更清晰 */
}

/* 初始位置分配 */
.nav-toggle-bar:nth-child(1) { transform: translateY(-8px); }
.nav-toggle-bar:nth-child(2) { transform: translateY(0); }
.nav-toggle-bar:nth-child(3) { transform: translateY(8px); }

/* .nav-toggle.active .nav-toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.active .nav-toggle-bar:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
} */

/* 修改這段讓動畫更流暢 */
.nav-toggle.is-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(0) rotate(45deg); /* 位移到中心並旋轉 */
}
.nav-toggle.is-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px); /* 稍微往左飄走，增加細節感 */
}
.nav-toggle.is-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(0) rotate(-45deg); /* 位移到中心並反向旋轉 */
}

/* 語言按鈕：小 pill */
.lang-toggle {
  margin-left: 1.2rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(7, 10, 32, 0.9);
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}

.lang-toggle:hover {
  border-color: var(--accent-soft);
  color: var(--accent-soft);
}
.nav a {
  margin-left: 1.4rem;
  font-size: 0.85rem;
    letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-muted);
}

.nav a:hover,
.nav a.active {
  color: var(--accent);
}

/* Dropdown Navigation */
.nav-dropdown {
  position: relative;
  display: inline-block;
  margin-left: 1.4rem;
}

.nav-dropdown-toggle {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 140ms ease;
}

.nav-dropdown-toggle:hover {
  color: var(--accent);
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0.8rem);
  left: 0;
  min-width: 220px;
  background: rgba(11, 18, 48, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 0.5rem 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px);
  z-index: 100;
}

/* 填補 toggle 和 menu 之間的間隙，讓滑鼠可以順利移動 */
.nav-dropdown-menu::before {
  content: '';
  position: absolute;
  top: -0.8rem;
  left: 0;
  right: 0;
  height: 0.8rem;
  background: transparent;
}

.nav-dropdown:hover .nav-dropdown-menu {
  display: block;
  animation: fadeInDown 0.2s ease;
}

.nav-dropdown-menu a {
  display: block;
  margin: 0;
  padding: 0.7rem 1.2rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: background 140ms ease, color 140ms ease;
}

.nav-dropdown-menu a:hover {
  background: rgba(159, 139, 255, 0.1);
  color: var(--accent);
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero */

.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding-block: 5rem 4rem;
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  inset: -30%;
  background:
    radial-gradient(circle at 20% 0%, rgba(159, 139, 255, 0.26), transparent 55%),
    radial-gradient(circle at 80% 100%, rgba(76, 190, 255, 0.18), transparent 55%);
  opacity: 0.9;
  pointer-events: none;
  z-index: -2;
}

.hero-stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 70% 40%, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(1px 1px at 30% 80%, rgba(255, 255, 255, 0.4), transparent),
    radial-gradient(1px 1px at 90% 10%, rgba(255, 255, 255, 0.4), transparent);
  opacity: 0.3;
  pointer-events: none;
  z-index: -1;
}

.hero-inner {
  max-width: 640px;
}

.eyebrow {
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 5vw, 4rem);
  margin: 0;
  line-height: 1.05;
}

.hero-title span {
  color: var(--accent-soft);
  opacity: 0.95;
}


.hero-subtitle {
  margin-top: 1rem;
  font-size: 0.98rem;
  color: var(--text-muted);
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.hero-note {
  margin-top: 1.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease,
    transform 120ms ease, box-shadow 120ms ease;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  color: #0a061a;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.75);
}

.btn.ghost {
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text);
  background: rgba(6, 10, 32, 0.7);
}

.btn.ghost:hover {
  border-color: var(--accent-soft);
}

.btn.ghost.disabled,
.btn.ghost[disabled] {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.btn.subtle {
  padding-inline: 1rem;
  background: transparent;
  color: var(--accent);
  border-color: transparent;
}

.btn.subtle:hover {
  color: #c3b8ff;
}


/* sections */

.section {
  padding-block: 3.5rem;
}

.section-soft {
  background: radial-gradient(circle at 0 0, rgba(159, 139, 255, 0.18), transparent 55%),
    var(--bg-soft);
}

.section-header h2 {
  margin: 0 0 0.3rem;
}

.section-header p {
  /* margin: 0; */
  color: var(--text-muted);
  max-width: 30rem;
  margin-bottom: 1rem;
}

.section-header .section-kicker {
  color: var(--accent);
}


/* art cards */

/* Filter Tabs for Soulpaints */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
  justify-content: center;
}

.filter-tab {
  padding: 0.6rem 1.3rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(7, 10, 32, 0.7);
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 180ms ease;
  font-family: var(--font-serif);
}

.filter-tab:hover {
  border-color: var(--accent-soft);
  color: var(--accent-soft);
  background: rgba(159, 139, 255, 0.1);
}

.filter-tab.is-active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(159, 139, 255, 0.15);
}

.series-intro {
  max-width: 680px;
  margin: 1.5rem auto 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Advent Calendar Slider */
.advent-slider {
  position: relative;
  max-width: 900px;
  margin: 3rem auto 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.advent-slider-container {
  display: flex;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.advent-slide {
  width: 100%;
  min-width: 100%;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.advent-slide-img-wrap {
  position: relative;
  width: 100%;
  background: rgba(10, 14, 40, 0.5);
}

.advent-slide img {
  width: 100%;
  max-height: 600px;
  object-fit: contain;
  display: block;
}

.advent-slide-caption {
  padding: 1.5rem 1rem;
  text-align: center;
  background: rgba(10, 14, 40, 0.95);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.advent-slide-caption h3 {
  font-size: 1.1rem;
  margin: 0 0 0.5rem 0;
  color: var(--accent);
}

.advent-slide-caption p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* Slider Buttons */
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(5, 8, 22, 0.85);
  backdrop-filter: blur(8px);
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 200ms ease;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-btn:hover {
  border-color: var(--accent);
  background: rgba(159, 139, 255, 0.2);
  transform: translateY(-50%) scale(1.1);
}

.slider-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: translateY(-50%) scale(1);
}

.slider-btn--prev {
  left: 1rem;
}

.slider-btn--next {
  right: 1rem;
}

/* Progress Indicator */
.slider-progress {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.slider-progress-current {
  color: var(--accent);
  font-weight: 600;
}

/* Dots Navigation */
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1.2rem;
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  cursor: pointer;
  transition: all 200ms ease;
  padding: 0;
}

.slider-dot:hover {
  background: rgba(159, 139, 255, 0.5);
  transform: scale(1.2);
}

.slider-dot.is-active {
  background: var(--accent);
  width: 24px;
  border-radius: 4px;
}

.art-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.6rem;
  margin-top: 2rem;
}

.art-card {
  background: rgba(10, 14, 40, 0.9);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
}

/* Featured card spans full width and has better spacing */
.art-card--featured {
  grid-column: 1 / -1;
}

.art-card--featured .art-card-body {
  padding: 2rem 2.5rem;
  line-height: 1.8;
}

.art-card--featured h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.art-card--featured h4 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.art-card--featured .art-text {
  line-height: 1.8;
  margin-bottom: 0.75rem;
}

.art-card--featured .shop-list {
  line-height: 1.9;
}

.art-card img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: block;
}

.art-card-body {
  padding: 1rem 1.1rem 1.25rem;
}

.art-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.art-meta {
  margin: 0 0 0.7rem;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.art-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.section-cta {
  margin-top: 2rem;
}


/* page hero */

.page-hero-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding-x);
}

.page-hero {
  padding-block: 3.5rem 2rem;
  background: radial-gradient(circle at 20% 0, rgba(159, 139, 255, 0.2), transparent 55%),
    var(--bg-softer);
  border-bottom: 1px solid var(--border-subtle);
}

.page-hero h1 {
  margin: 0 0 0.5rem;
}

.page-hero p {
  margin: 0;
  color: var(--text-muted);
}

.page-kicker {
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--accent); /* 使用妳最愛的星光紫 */
  margin-bottom: 0.9rem;
}

/* text content */

.text-content {
  max-width: 640px;
  line-height: 1.7;
}

.text-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
}

.text-link:hover {
  text-decoration: underline;
}

/* footer */

/* --- Scroll to Top Button --- */
.scroll-top-btn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(100, 80, 150, 0.7);
  color: #fff;
  border: 1px solid rgba(159, 139, 255, 0.3);
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, background 0.2s;
  z-index: 900;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn:hover {
  background: rgba(100, 80, 150, 1);
}

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding-block: 1.4rem;
  background: #050816;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  margin-inline: 0.35rem;
}

.footer-links a:hover {
  color: var(--accent);
}

/* Footer 支持連結樣式 */
.support-link {
  color: var(--text-muted) !important;
  font-style: italic; /* 讓它帶點藝術家的感性 */
  transition: all 0.3s ease;
}

.support-link:hover {
  color: var(--accent) !important; /* 觸碰時發出星光紫 */
  text-shadow: 0 0 10px rgba(159, 139, 255, 0.4);
}

/* --- 新增：為了 Gallery 圖片裁切用的樣式 --- */
.art-card-img-wrap {
  /* 預設：直式作品 (A4/A5 portrait) */
  aspect-ratio: 3/4.2;
  overflow: hidden;
  position: relative;
}

/* 橫式作品 */
.art-card-img-wrap.landscape {
  aspect-ratio: 4/3;
}

/* 正方形作品 */
.art-card-img-wrap.square {
  aspect-ratio: 1/1;
}

.art-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--img-pos, center center);
  transition: transform 0.4s ease; /* 加個小特效，滑鼠移過去會放大 */
}

.art-card:hover .art-card-img-wrap img {
  transform: scale(1.05); /* 狼王應該會喜歡這個互動細節 */
}

/* Commission example images */
.commission-example-imgs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  max-width: 500px;
}

.commission-example-imgs img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 8px;
}

/* View More button */
.view-more-btn {
  display: block;
  margin: 2rem auto 0;
}

/* 100 drawing project */
.subnav {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.subnav a {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
/* about page */
.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: flex-start;
}

/* 主要文字區塊 */
.about-main h2 {
  margin-top: 1.8rem;
  margin-bottom: 0.6rem;
  font-size: 1.2rem;
}

.about-main h2:first-of-type {
  margin-top: 0;
}

.about-main p + p {
  margin-top: 0.9rem;
}

/* 讓關於我的文字更有閱讀詩集的感覺 */
.about-main p {
  letter-spacing: 0.03em; /* 稍微拉開一點英文字距 */
  word-spacing: 0.1em;
  opacity: 0.9; /* 不要用純白，用 0.9 的白會更有溫度 */
}

/* 側邊欄：小卡片 */
.about-side {
  position: sticky;
  top: 6rem; /* 如果被 navbar 擋到就往下調一點 */
}

.about-card {
  background: rgba(10, 14, 40, 0.92);
  border-radius: 18px;
  padding: 1.5rem 1.4rem;
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08));
  box-shadow: var(--shadow-soft, 0 18px 40px rgba(0, 0, 0, 0.6));
}

.about-card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.about-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

.about-list li + li {
  margin-top: 0.6rem;
}

/* shop & commision page */

.shop-list {
  margin: 0.5rem 0 0.8rem;
  padding-left: 1.2rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.shop-note {
  max-width: 40rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.commission-divider {
  margin: 1.5rem 0;
  border: none;
  border-top: 1px solid var(--color-border, #e0e0e0);
}

.commission-section-title {
  margin-top: 1.5rem;
}

.commission-size-title {
  margin-top: 1rem;
  font-weight: 600;
}

.commission-list-tight {
  margin-top: 0.5rem;
}

.commission-note {
  margin-top: 0.75rem;
  font-size: 0.9em;
  opacity: 0.8;
}

.commission-examples {
  margin-top: 1.5rem;
}

.commission-example-label {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.commission-example + .commission-example {
  margin-top: 1rem;
}

/* Commission Process Steps */
.commission-process-steps {
  margin-top: 1rem;
}

.commission-step {
  margin-bottom: 1rem;
}

.commission-step-title {
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.3rem;
  font-size: 0.95rem;
}

.commission-step .art-text {
  margin: 0;
}

/* Commission Collapsible (details/summary) */
.commission-collapsible {
  margin-top: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 200ms ease;
}

.commission-collapsible + .commission-collapsible {
  margin-top: 0.75rem;
}

.commission-collapsible[open] {
  border-color: rgba(159, 139, 255, 0.2);
}

.commission-collapsible-summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.2rem;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  background: rgba(10, 14, 40, 0.5);
  transition: background 200ms ease;
  list-style: none;
}

.commission-collapsible-summary::-webkit-details-marker {
  display: none;
}

.commission-collapsible-summary::marker {
  display: none;
  content: "";
}

.commission-collapsible-summary:hover {
  background: rgba(159, 139, 255, 0.08);
}

.collapsible-arrow {
  margin-left: auto;
  transition: transform 300ms ease;
  font-size: 0.8rem;
  color: var(--accent);
}

.collapsible-arrow::before {
  content: "▸";
}

.commission-collapsible[open] .collapsible-arrow {
  transform: rotate(90deg);
}

.commission-collapsible-content {
  padding: 1rem 1.2rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* Commission Booking Form */
.commission-form {
  margin-top: 1.5rem;
  max-width: 600px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(10, 14, 40, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-soft);
  box-shadow: 0 0 0 3px rgba(159, 139, 255, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-radio-group {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.form-radio {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.form-radio input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  background: rgba(10, 14, 40, 0.8);
  cursor: pointer;
  transition: all 200ms ease;
  flex-shrink: 0;
}

.form-radio input[type="radio"]:checked {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: inset 0 0 0 3px rgba(10, 14, 40, 0.9);
}

.form-file-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(10, 14, 40, 0.8);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  color: var(--text-muted);
  font-family: var(--font-serif);
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color 200ms ease;
}

.form-file-input:hover {
  border-color: var(--accent-soft);
}

.form-hint {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.7;
}

.commission-form-submit {
  margin-top: 0.5rem;
  width: 100%;
}

.commission-form-success {
  text-align: center;
  padding: 2rem 1rem;
  font-size: 1.2rem;
  color: var(--accent);
}

/* contact page */

.section-contact-inner {
  max-width: 920px;
  margin: 0 auto;
}

.contact-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 3rem;
  grid-template-columns: repeat(2, 1fr);
}

.contact-card {
  background: rgba(8, 10, 32, 0.9);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  padding: 1.75rem 1.75rem 2rem;
}

.contact-card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.contact-card-text {
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0 0 1.5rem;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-soft, #c7b5ff);
}

.contact-btn:hover{
  color: var(--accent);
}

/* 外部連結區 */
.contact-links {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
}

.contact-links-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.contact-links-text {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.contact-links-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.contact-links-list a {
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--accent-soft, #c7b5ff);
}

.contact-links-list a:hover {
  text-decoration: underline;
}


/* small screens */

@media (max-width: 960px) {
  /* about page */
  .about-layout {
    grid-template-columns: minmax(0, 1.8fr) minmax(0, 1.2fr);
    gap: 2rem;
  }

  .about-main h2 {
    font-size: 1.1rem;
  }

  .about-card {
    padding: 1.3rem 1.2rem;
  }
}

@media (max-width: 720px) {
    /* 品牌 + 漢堡排版 */
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  /* 小螢幕才顯示漢堡 */
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
  }

  /* 把 nav 做成右側滑出的面板，預設是關起來的 */
    .nav {
    position: fixed;
    inset: 0;                    /* 等同 top/right/bottom/left 全部 0 */
    width: 100vw;
    height: 100vh;
    padding: 0;
    /* 深邃的宇宙背景 + 毛玻璃 */
    background: radial-gradient(
      circle at center,
      rgba(15, 22, 56, 0.98),
      rgba(5, 8, 22, 1)
    );
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    /* padding: 5rem 1.75rem 2.5rem; */
    /* background: radial-gradient(
      circle at top left,
      rgba(118, 108, 255, 0.55),
      rgba(4, 6, 24, 0.98)
    ); */

    display: flex;
    flex-direction: column;
    gap: 1.4rem;
    align-items: center;
    justify-content: center;
    /*由上往下掉*/
    transform: translateX(-100%);
    opacity: 0;
    pointer-events: none;
    /* transition: transform 0.28s ease, opacity 0.28s ease; */
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    z-index: 80;
  }

  .nav.is-open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }

  /* 讓連結看起來更有「質感」 */
  .nav a {
    margin-left: 0; /* 移除桌機版的左邊距 */
    font-size: 1.4rem; /* 放大字體 */
    letter-spacing: 0.2em;
    font-family: var(--font-serif); /* 使用襯線體增加藝術感 */
    transition: color 0.3s ease;
  }

  /* 語言切換按鈕在手機版也要置中 */
  .nav .lang-toggle {
    margin-left: 0;
    margin-top: 1rem;
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
  }

  /* Mobile dropdown navigation */
  .nav-dropdown {
    margin-left: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .nav-dropdown-toggle {
    font-size: 1.4rem;
    letter-spacing: 0.2em;
    font-family: var(--font-serif);
    cursor: default;
    pointer-events: none;
  }

  .nav-dropdown-menu {
    display: flex;
    position: static;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    background: transparent;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
    padding: 0;
    min-width: auto;
  }

  .nav-dropdown-menu a {
    font-size: 1.2rem;
    letter-spacing: 0.15em;
    padding: 0.5rem 1rem;
    font-family: var(--font-serif);
  }

  /* Advent Slider Mobile */
  .slider-btn {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }

  .slider-btn--prev {
    left: 0.5rem;
  }

  .slider-btn--next {
    right: 0.5rem;
  }

  .advent-slide-caption {
    padding: 1rem 0.75rem;
  }

  .advent-slide-caption h3 {
    font-size: 1rem;
  }

  .advent-slide-caption p {
    font-size: 0.85rem;
  }

  /* .nav a,
  .nav .lang-toggle {
    width: 100%;
    text-align:start;
  } */
  /* 漢堡在手機上顯示 */
  .nav-toggle {
    display: inline-flex;
  }
  /* body.nav-open .lang-toggle {
    opacity: 0;
    pointer-events: none;
  } */

  .hero {
    padding-top: 4rem;
    padding-bottom: 3rem;
  }

  .hero-inner {
    max-width: 100%;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  /* about page*/
 .about-layout {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }

  .about-side {
    position: static;  /* 小螢幕不要 sticky，會怪 */
  }

  .about-card {
    padding: 1.2rem 1.1rem;
    border-radius: 16px;
  }

  .about-main h2 {
    margin-top: 1.5rem;
    font-size: 1.05rem;
  }

  .about-main h2:first-of-type {
    margin-top: 0.5rem;
  }

  .about-list {
    font-size: 0.95rem;
  }

  .contact-grid {
    grid-template-columns: 1fr; /* 修正：手機版變回一欄 */
  }
}

/* Extra small screens - iPhone SE, small Android phones */

@media (max-width: 480px) {
  /* 基礎字體稍微縮小 */
  html {
    font-size: 16px;
  }

  html[lang="en"] {
    font-size: 18px;
  }

  /* Container 減少左右 padding */
  .container {
    width: calc(100% - 1.5rem);
  }

  /* Hero 調整 */
  .hero {
    min-height: 60vh;
    padding-block: 3rem 2rem;
  }

  .hero-title {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
  }

  /* 按鈕全寬更好點 */
  .hero-actions .btn {
    width: 100%;
    text-align: center;
  }

  /* Section 間距縮小 */
  .section {
    padding-block: 2.5rem;
  }

  /* Art Grid 改成單欄 */
  .art-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }

  /* 圖片比例在極小螢幕稍微寬一點 */
  .art-card-img-wrap {
    aspect-ratio: 4/5;
  }

  .art-card-img-wrap.landscape {
    aspect-ratio: 16/10; /* 稍微寬一點 */
  }

  /* 卡片內文字縮小 */
  .art-card h3 {
    font-size: 0.95rem;
  }

  .art-meta {
    font-size: 0.72rem;
  }

  .art-text {
    font-size: 0.85rem;
  }

  /* Header 品牌字體縮小 */
  .brand-name {
    font-size: 0.72rem;
  }

  /* Nav 連結字體調整 */
  .nav a {
    font-size: 1.2rem;
  }

  /* Page hero */
  .page-hero {
    padding-block: 2.5rem 1.5rem;
  }

  .page-hero h1 {
    font-size: 1.8rem;
  }

  /* Contact cards */
  .contact-card {
    padding: 1.4rem 1.3rem 1.6rem;
  }

  .contact-card-title {
    font-size: 1.05rem;
  }

  /* About page */
  .about-main h2 {
    font-size: 1rem;
  }

  /* Footer */
  .footer-inner {
    font-size: 0.75rem;
  }
}