/* ── Nanqiao Lyu's Piano Studio — Dark Piano Theme ── */

:root {
  --purple:       #A855F7;
  --purple-mid:   #C084FC;
  --purple-light: rgba(168,85,247,0.18);
  --purple-border: rgba(168,85,247,0.35);
  --bg:           rgba(8,4,18,0.82);
  --bg-alt:       rgba(14,7,32,0.88);
  --text:         #EDE9FE;
  --body:         rgba(255,255,255,0.82);
  --muted:        rgba(255,255,255,0.52);
  --gold:         #E8C06A;
  --header-h:     68px;
  --radius:       4px;
  --transition:   0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background-color: #080412;
  background-image: url('../images/piano-bg.jpg');
  background-attachment: fixed;
  background-size: cover;
  background-position: center center;
  color: var(--body);
  font-family: 'Lato', 'Helvetica Neue', Arial, sans-serif;
  font-size: 15px;
  line-height: 1.75;
}
img { max-width: 100%; display: block; }
a { color: var(--purple-mid); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--purple); }
p { margin-bottom: 1em; }
h1,h2,h3,h4 { font-family: 'Playfair Display', Georgia, serif; line-height: 1.25; color: var(--text); }

/* ── Header ─────────────────────────────────────────── */
#site-header {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(6,3,14,0.25);
  border-bottom: 2px solid var(--purple);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px;
  z-index: 100;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.header-logo a {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--purple-mid);
  letter-spacing: 0.3px;
}
.header-logo a:hover { color: #fff; }
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.72);
  transition: color var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--purple-mid); }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--purple-mid); margin: 5px 0;
}
@media (max-width: 720px) {
  #site-header { padding: 0 20px; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: var(--header-h);
    left: 0; right: 0;
    background: rgba(6,3,14,0.97);
    border-bottom: 2px solid var(--purple);
    flex-direction: column; gap: 0; padding: 8px 0;
    backdrop-filter: blur(8px);
  }
  .nav-links.open { display: flex; }
  .nav-links li a { display: block; padding: 12px 24px; }
}

/* ── Banner (hero) ───────────────────────────────────── */
.banner {
  margin-top: var(--header-h);
  position: relative;
  background: transparent;
  text-align: center;
  padding: 80px 24px;
  border-bottom: 1px solid var(--purple-border);
}
.banner h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: #fff;
  margin-bottom: 14px;
  text-shadow: 0 2px 20px rgba(168,85,247,0.4);
}
.banner p {
  font-size: 1rem;
  color: rgba(255,255,255,0.80);
  max-width: 560px;
  margin: 0 auto 24px;
}
.banner-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ── Page header (inner pages) ───────────────────────── */
.page-header {
  margin-top: var(--header-h);
  background: transparent;
  padding: 56px 24px;
  text-align: center;
  border-bottom: 1px solid var(--purple-border);
}
.page-header h1 {
  color: #fff;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  text-shadow: 0 2px 16px rgba(168,85,247,0.4);
}
.page-header p {
  color: rgba(255,255,255,0.75);
  margin-top: 8px;
  font-size: 14px;
}

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.7);
  cursor: pointer;
  transition: all var(--transition);
}
.btn:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: #fff; }
.btn-purple {
  background: var(--purple);
  color: #fff;
  border-color: var(--purple);
}
.btn-purple:hover { background: var(--purple-mid); color: #fff; border-color: var(--purple-mid); }

/* ── Layout ──────────────────────────────────────────── */
.container       { max-width: 1080px; margin: 0 auto; padding: 0 28px; }
.container-narrow{ max-width: 780px;  margin: 0 auto; padding: 0 28px; }
.section         { padding: 64px 28px; background: transparent; }
.section-alt     { background: transparent; }

.two-col {
  display: grid;
  grid-template-columns: 350px 1fr;  /* ← 改 540px 来调整圆圈列宽；1fr = 文字占剩余空间 */
  gap: 40px;                          /* ← 改这个数字来调整圆圈和文字之间的间距 */
  align-items: start;                 /* 顶部对齐 */
}
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; gap: 32px; }
}

/* ── Section typography ──────────────────────────────── */
.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--purple-mid);
  margin-bottom: 8px;
}
.section-heading {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  color: var(--text);
  margin-bottom: 16px;
}
.divider {
  width: 40px; height: 3px;
  background: var(--purple-mid);
  margin-bottom: 24px;
}
.divider-center { margin-left: auto; margin-right: auto; }

/* ── Photo frame (rectangular — kept for reference) ──── */
/*
.photo-wrap {
  position: relative;
  background: rgba(30,10,60,0.6);
  border: 1px solid var(--purple-border);
  overflow: hidden;
}
.photo-wrap img {
  width: 100%;
  display: block;
  object-fit: cover;
}
*/

/* ── Photo circle ────────────────────────────────────── */
.photo-wrap {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
}
.photo-circle {
  width: 100%;
  max-width: 350px;  /* ← 改这个数字来调整圆圈大小（单位 px） */
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--purple-mid);
  box-shadow: 0 0 48px rgba(168,85,247,0.3), 0 0 0 6px rgba(168,85,247,0.08);
  flex-shrink: 0;
}
.photo-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.photo-placeholder {
  display: none; /* hidden by default; shown via onerror JS */
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 540px;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 2px dashed var(--purple-border);
  color: var(--purple-border);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.photo-placeholder i { font-size: 40px; }
@media (max-width: 700px) {
  .photo-wrap { justify-content: center; }
  .photo-circle, .photo-placeholder { max-width: min(85vw, 320px); }
}

/* ── Bio / text area ─────────────────────────────────── */
.bio-text h2 { font-size: 1.5rem; color: var(--purple-mid); margin-bottom: 12px; }
.bio-text p  { color: var(--body); font-size: 14.5px; line-height: 1.8; }
.bio-creds {
  margin: 20px 0;
  padding: 16px 20px;
  background: rgba(168,85,247,0.08);
  border-left: 4px solid var(--purple-mid);
}
.bio-creds li {
  list-style: none;
  padding: 4px 0;
  font-size: 14px;
  color: var(--body);
}
.bio-creds li::before { content: '✦ '; color: var(--purple-mid); font-size: 10px; }

/* ── Features grid ───────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 36px;
}
.feature-item {
  background: rgba(20,10,45,0.85);
  border: 1px solid var(--purple-border);
  padding: 24px 20px;
  transition: border-color var(--transition), background var(--transition);
}
.feature-item:hover { border-color: var(--purple-mid); background: rgba(30,12,60,0.9); }
.feature-item .icon {
  font-size: 24px;
  color: var(--purple-mid);
  margin-bottom: 10px;
}
.feature-item h4 { font-size: 0.95rem; color: var(--text); margin-bottom: 6px; }
.feature-item p  { font-size: 13px; color: var(--muted); margin: 0; line-height: 1.6; }

/* ── Testimonials ────────────────────────────────────── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 36px;
}
.testimonial {
  background: rgba(20,10,45,0.85);
  border: 1px solid var(--purple-border);
  border-top: 3px solid var(--purple-mid);
  padding: 24px 20px;
}
.testimonial-quote {
  font-style: italic;
  color: var(--body);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 14px;
}
.testimonial-quote::before { content: '"'; color: var(--purple-mid); font-size: 1.5em; line-height: 0; vertical-align: -0.3em; }
.testimonial-author { font-size: 12px; font-weight: 700; color: var(--purple-mid); text-transform: uppercase; letter-spacing: 1px; }

/* ── News list ───────────────────────────────────────── */
.news-list { margin-top: 32px; }
.news-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--purple-border);
  align-items: start;
}
.news-date-box { text-align: right; }
.news-date-day   { font-size: 2rem; font-family: 'Playfair Display', serif; color: var(--purple-mid); line-height: 1; }
.news-date-month { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); }
.news-title { font-size: 1.1rem; color: var(--text); margin-bottom: 6px; }
.news-title a { color: var(--text); }
.news-title a:hover { color: var(--purple-mid); }
.news-summary { font-size: 13.5px; color: var(--muted); margin-bottom: 8px; }
.news-read { font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--purple-mid); }
.news-read:hover { color: #fff; }
@media (max-width: 560px) {
  .news-item { grid-template-columns: 1fr; }
  .news-date-box { display: flex; gap: 8px; align-items: baseline; text-align: left; }
  .news-date-day { font-size: 1.3rem; }
}

/* ── Single post ─────────────────────────────────────── */
.post-meta { font-size: 12px; text-transform: uppercase; letter-spacing: 2px; color: var(--purple-mid); margin-bottom: 12px; }
.post-title { font-size: clamp(1.5rem, 3.5vw, 2.4rem); color: var(--text); margin-bottom: 24px; line-height: 1.2; }
.post-body { color: var(--body); font-size: 15px; line-height: 1.85; }
.post-body h3 { font-size: 1.15rem; color: var(--purple-mid); margin: 24px 0 10px; }
.post-body p  { margin-bottom: 1.1em; }
.post-body ul, .post-body ol { margin: 12px 0 16px 22px; }
.post-body li { margin-bottom: 6px; }
.post-body strong { color: var(--text); }
.post-body em { color: var(--purple-mid); }
.post-body img {
  max-width: 100%; height: auto; display: block;
  margin: 24px auto;
  border-radius: 4px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.post-body video {
  max-width: 100%; height: auto; display: block;
  margin: 24px auto;
  border-radius: 4px;
  background: #000;
  box-shadow: 0 4px 24px rgba(0,0,0,0.6);
}
.post-nav {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 32px 0; border-top: 1px solid var(--purple-border); margin-top: 40px;
  font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--purple-mid);
}

/* ── Pagination ──────────────────────────────────────── */
.pagination {
  display: flex; justify-content: center; gap: 6px;
  margin-top: 40px; flex-wrap: wrap;
}
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; font-size: 13px; font-weight: 600;
  border: 1px solid var(--purple-border); color: var(--muted);
  transition: all var(--transition);
}
.pagination a:hover { border-color: var(--purple-mid); color: var(--purple-mid); }
.pagination .current { background: var(--purple); border-color: var(--purple); color: #fff; }
.pagination .disabled { opacity: 0.35; pointer-events: none; }

/* ── Contact ─────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 56px; align-items: start;
}
@media (max-width: 800px) { .contact-layout { grid-template-columns: 1fr; } }
.contact-info-box {
  background: rgba(20,10,45,0.85);
  border: 1px solid var(--purple-border);
  padding: 28px 24px;
}
.contact-info-box h3 { font-size: 1.1rem; color: var(--purple-mid); margin-bottom: 16px; }
.contact-info-box p  { font-size: 14px; color: var(--body); margin-bottom: 12px; }
.contact-info-box a  { color: var(--purple-mid); }

/* ── Form ────────────────────────────────────────────── */
.form-row { margin-bottom: 22px; }
.form-row label {
  display: block; font-size: 12px; font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 6px;
}
.form-row input,
.form-row textarea {
  width: 100%;
  background: rgba(20,10,45,0.85);
  border: 1px solid var(--purple-border);
  color: var(--text);
  font-family: 'Lato', sans-serif;
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--transition);
  border-radius: var(--radius);
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--purple-mid); }
.form-row textarea { resize: vertical; min-height: 120px; }
.form-row input::placeholder, .form-row textarea::placeholder { color: rgba(255,255,255,0.3); }

/* ── Philosophy page ─────────────────────────────────── */
.philosophy-block { margin-bottom: 24px; }
.philosophy-block h3 {
  font-size: 1.05rem; color: var(--purple-mid); font-family: 'Lato', sans-serif;
  font-weight: 700; margin-bottom: 8px;
}
.philosophy-block p { font-size: 14.5px; color: var(--body); }

/* ── Footer ──────────────────────────────────────────── */
footer {
  background: rgba(6,3,14,0.96);
  border-top: 2px solid var(--purple);
  color: rgba(255,255,255,0.65);
  padding: 36px 28px;
  text-align: center;
}
footer .footer-name { font-family: 'Playfair Display', serif; font-size: 1.1rem; color: var(--purple-mid); margin-bottom: 12px; }
footer .footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 20px; list-style: none; margin-bottom: 16px; }
footer .footer-links a { font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,0.5); }
footer .footer-links a:hover { color: var(--purple-mid); }
footer .footer-copy { font-size: 12px; color: rgba(255,255,255,0.35); }

/* ── CTA section override ────────────────────────────── */
section.section[style*="background:var(--purple)"],
.cta-section {
  background: rgba(80,20,140,0.75) !important;
  border-top: 1px solid var(--purple-border);
  border-bottom: 1px solid var(--purple-border);
}

/* ── Admin (light theme override) ───────────────────── */
.admin-wrap,
.admin-login-wrap {
  --bg:           #FFFFFF;
  --bg-alt:       #F9F6FF;
  --text:         #1E1B4B;
  --body:         #374151;
  --muted:        #6B7280;
  --purple:       #6B21A8;
  --purple-mid:   #7C3AED;
  --purple-light: #EDE9FE;
  --purple-border:#DDD6FE;
}
.admin-wrap {
  max-width: 960px;
  margin: calc(var(--header-h) + 40px) auto 60px;
  padding: 0 24px;
  background: #fff;
  border-radius: 4px;
  color: #374151;
}
.admin-wrap h1, .admin-wrap h2, .admin-wrap h3, .admin-wrap h4 { color: #1E1B4B; }
.admin-wrap a { color: #7C3AED; }
.admin-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 28px; padding-bottom: 14px;
  border-bottom: 2px solid #DDD6FE;
}
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th {
  text-align: left; font-size: 10px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase;
  color: #6B7280; padding: 10px 14px;
  border-bottom: 2px solid #DDD6FE;
}
.admin-table td {
  padding: 12px 14px; border-bottom: 1px solid #DDD6FE;
  font-size: 13px; vertical-align: middle; color: #374151;
}
.admin-table tr:hover td { background: #F9F6FF; }
.badge { display: inline-block; padding: 2px 10px; font-size: 10px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; border-radius: 20px; }
.badge-live  { background: #EDE9FE; color: #6B21A8; }
.badge-draft { background: #F3F4F6; color: #6B7280; }
.admin-actions { display: flex; gap: 8px; }
.admin-actions a, .admin-actions button {
  font-size: 11px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
  padding: 5px 12px; border: 1px solid #DDD6FE;
  background: #fff; color: #7C3AED; cursor: pointer;
  transition: all var(--transition);
}
.admin-actions a:hover, .admin-actions button:hover { background: #EDE9FE; }
.admin-actions button.danger { color: #DC2626; border-color: #FECACA; }
.admin-actions button.danger:hover { background: #FEF2F2; }
.admin-form { background: #F9F6FF; border: 1px solid #DDD6FE; padding: 32px; }
.admin-form-group { margin-bottom: 20px; }
.admin-form-group label { display: block; font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: #6B7280; margin-bottom: 6px; }
.admin-form-group input[type="text"], .admin-form-group input[type="date"],
.admin-form-group input[type="password"], .admin-form-group textarea {
  width: 100%; background: #fff; border: 1px solid #DDD6FE;
  color: #1E1B4B; font-family: 'Lato', sans-serif; font-size: 14px;
  padding: 9px 13px; outline: none; border-radius: var(--radius);
  transition: border-color var(--transition);
}
.admin-form-group input:focus, .admin-form-group textarea:focus { border-color: #7C3AED; }
.admin-form-group textarea { resize: vertical; min-height: 400px; font-family: monospace; font-size: 13px; }
.admin-form-group .hint { font-size: 12px; color: #6B7280; margin-top: 5px; }
.admin-check { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #374151; }
.admin-check input[type="checkbox"] { accent-color: #6B21A8; width: 15px; height: 15px; }
.error-msg { background: #FEF2F2; border: 1px solid #FECACA; color: #DC2626; padding: 10px 14px; margin-bottom: 20px; font-size: 13px; border-radius: var(--radius); }
.success-msg { background: #EDE9FE; border: 1px solid #DDD6FE; color: #6B21A8; padding: 10px 14px; margin-bottom: 20px; font-size: 13px; border-radius: var(--radius); }

/* Reset body background on admin pages */
body:has(.admin-wrap),
body:has(.admin-login-wrap) {
  background-image: none !important;
  background-color: #F9F6FF !important;
}

/* Admin header/nav override for light bg on admin pages */
body:has(.admin-wrap) #site-header,
body:has(.admin-login-wrap) #site-header {
  background: #fff;
  border-bottom-color: #6B21A8;
}
body:has(.admin-wrap) .nav-links a,
body:has(.admin-login-wrap) .nav-links a { color: #1E1B4B; }
body:has(.admin-wrap) .nav-links a:hover,
body:has(.admin-login-wrap) .nav-links a:hover { color: #7C3AED; }
body:has(.admin-wrap) .header-logo a,
body:has(.admin-login-wrap) .header-logo a { color: #6B21A8; }
body:has(.admin-wrap) .nav-toggle span,
body:has(.admin-login-wrap) .nav-toggle span { background: #6B21A8; }

.admin-login-wrap {
  min-height: 100vh; display: flex; align-items: center;
  justify-content: center; background: #F9F6FF; padding: 24px;
}
.admin-login-box {
  width: 100%; max-width: 360px; background: #fff;
  border: 1px solid #DDD6FE; padding: 44px 36px; text-align: center;
  color: #374151;
}
.admin-login-box h2 { color: #6B21A8; margin-bottom: 8px; }
.admin-login-box p  { color: #6B7280; font-size: 13px; margin-bottom: 28px; }

/* Admin btn override */
.admin-wrap .btn,
.admin-login-wrap .btn {
  background: #fff; color: #6B21A8; border-color: #DDD6FE;
}
.admin-wrap .btn:hover,
.admin-login-wrap .btn:hover { background: #EDE9FE; }
.admin-wrap .btn-purple,
.admin-login-wrap .btn-purple {
  background: #6B21A8; color: #fff; border-color: #6B21A8;
}
.admin-wrap .btn-purple:hover,
.admin-login-wrap .btn-purple:hover { background: #7C3AED; }

/* Quill */
.ql-toolbar { border-color: #DDD6FE !important; }
.ql-container { border-color: #DDD6FE !important; min-height: 340px; }