/*
Theme Name: SongHouse
Theme URI: https://example.com/
Author: SongHouse
Description: Editorial WordPress theme for a music submission, discovery and artist-matching platform.
Version: 1.0.0
Requires at least: 6.4
Requires PHP: 8.0
Text Domain: songhouse
*/

/* ===================================================
   1. GLOBAL VARIABLES & RESET
=================================================== */
:root {
  --sv-bg: #0e0e10;
  --sv-card-bg: #17171a;
  --sv-text: #f0eee9;
  --sv-muted: #8e8d94;
  --sv-accent: #f75336;
  --sv-border: rgba(255, 255, 255, 0.08);
  --sv-border-light: rgba(255, 255, 255, 0.15);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --max: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--sv-bg);
  color: var(--sv-text);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

button, input, textarea, select {
  font: inherit;
}

.container {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

/* ===================================================
   2. SITE HEADER (浮空透明，浮在全屏大相之上)
=================================================== */
.site-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.header-inner {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.logo {
  font-family: var(--sans);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: #ffffff;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.nav a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.2s ease;
}

.nav a:hover {
  color: #ffffff;
}

.nav-cta {
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 8px 18px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.2s ease;
}

.nav-cta:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #ffffff;
}

.menu-toggle {
  display: none;
  background: none;
  border: 0;
  font-size: 24px;
  color: #ffffff;
  cursor: pointer;
}

/* ===================================================
   3. HERO BACKGROUND SECTION (全屏底圖 + 文字與試聽卡片浮上層)
=================================================== */
.sv-hero-bg-section {
  position: relative;
  width: 100%;
  min-height: 100vh;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 60px;
}

/* 電影感遮罩：加強文字對比度 */
.sv-hero-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 12, 0.45) 0%,
    rgba(10, 10, 12, 0.65) 60%,
    rgba(10, 10, 12, 0.95) 100%
  );
  z-index: 1;
}

/* 浮在底圖上的所有內容 */
.sv-hero-foreground {
  position: relative;
  z-index: 2;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
}

.sv-hero-content {
  max-width: 650px;
}

.sv-label-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 20px;
}

.sv-pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--sv-accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--sv-accent);
}

.sv-hero-title {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: #ffffff;
  margin: 0 0 20px;
}

.sv-hero-title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: #f1ede4;
  display: block;
  font-size: 0.65em;
  margin-top: 8px;
}

.sv-hero-desc {
  font-size: 16px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.75);
  margin: 0 0 32px;
  max-width: 480px;
}

.sv-hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn.sv-btn-pill-solid {
  background: #ffffff;
  color: #000000;
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  transition: all 0.25s ease;
}

.btn.sv-btn-pill-solid:hover {
  background: var(--sv-accent);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn.sv-btn-pill-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  transition: all 0.25s ease;
}

.btn.sv-btn-pill-ghost:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: #ffffff;
}

/* 浮動毛玻璃播放卡片 (Hero 右下角) */
.sv-glass-player {
  background: rgba(18, 18, 20, 0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--sv-border-light);
  border-radius: 16px;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 280px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.sv-play-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--sv-accent);
  border: none;
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.sv-play-circle:hover {
  transform: scale(1.05);
}

.sv-genre-pill {
  font-size: 10px;
  text-transform: uppercase;
  color: var(--sv-accent);
  font-weight: 700;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 3px;
}

.sv-track-name a {
  color: #fff;
  font-weight: 700;
  font-size: 15px;
}

.sv-track-artist {
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
}

/* ===================================================
   4. TICKER BAR (跑馬燈)
=================================================== */
.sv-ticker-bar {
  overflow: hidden;
  white-space: nowrap;
  border-top: 1px solid var(--sv-border);
  border-bottom: 1px solid var(--sv-border);
  padding: 16px 0;
  background: #121214;
}

.sv-ticker-track {
  display: inline-block;
  animation: sv-ticker 25s linear infinite;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #6d6c75;
}

@keyframes sv-ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===================================================
   5. CHART SECTION (街聲排行榜 / 熱門試聽)
=================================================== */
.section {
  padding: 100px 0;
}

.sv-chart-section {
  padding: 90px 0;
}

.sv-chart-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
}

.sv-sub-tag {
  font-size: 11px;
  color: var(--sv-accent);
  font-weight: 700;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 6px;
}

.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: #ffffff;
  margin: 0;
}

.btn.sv-btn-outline {
  border: 1px solid var(--sv-border-light);
  color: var(--sv-text);
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn.sv-btn-outline:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}

.sv-chart-list {
  display: flex;
  flex-direction: column;
}

.sv-chart-item {
  display: grid;
  grid-template-columns: 50px 50px 1fr 120px 80px;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid var(--sv-border);
  transition: background 0.2s ease;
}

.sv-chart-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.sv-chart-rank {
  font-family: var(--serif);
  font-size: 20px;
  color: #55555d;
}

.sv-mini-play {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--sv-border-light);
  background: transparent;
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.2s ease;
}

.sv-mini-play:hover,
.sv-mini-play.is-playing {
  background: var(--sv-accent);
  border-color: var(--sv-accent);
}

.sv-no-audio {
  color: #444;
  text-align: center;
  display: block;
}

.sv-chart-main {
  padding: 0 10px;
}

.sv-chart-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 4px;
}

.sv-chart-title a {
  color: var(--sv-text);
}

.sv-chart-title a:hover {
  color: var(--sv-accent);
}

.sv-chart-author {
  font-size: 13px;
  color: var(--sv-muted);
}

.sv-pill {
  font-size: 11px;
  background: rgba(255, 255, 255, 0.06);
  padding: 5px 12px;
  border-radius: 999px;
  color: #bbb;
}

.sv-icon-link {
  color: var(--sv-muted);
  font-size: 13px;
  text-align: right;
  display: block;
}

.sv-icon-link:hover {
  color: #fff;
}

.sv-empty {
  padding: 30px 0;
  color: var(--sv-muted);
}

/* ===================================================
   6. DUAL CARDS (行動號召雙卡片)
=================================================== */
.sv-dual-section {
  padding-bottom: 100px;
}

.sv-dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.sv-action-card {
  padding: 48px;
  border-radius: 20px;
  color: #fff;
  border: 1px solid var(--sv-border);
  background: var(--sv-card-bg);
  transition: transform 0.25s ease, border-color 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.sv-action-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.25);
}

.sv-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}

.sv-tag-invert {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--sv-muted);
}

.sv-big-arrow {
  font-size: 24px;
  color: var(--sv-accent);
}

.sv-action-card h3 {
  font-size: 28px;
  margin: 0 0 12px;
}

.sv-action-card p {
  color: var(--sv-muted);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

/* ===================================================
   7. SUBPAGES & FOOTER (獨立頁、上載頁與頁尾)
=================================================== */
.page-hero {
  padding: 120px 0 54px;
  border-bottom: 1px solid var(--sv-border);
}

.page-hero h1 {
  font-family: var(--serif);
  font-size: clamp(48px, 7vw, 88px);
  line-height: 0.95;
  font-weight: 400;
  letter-spacing: -0.05em;
  margin: 0;
}

.eyebrow {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sv-accent);
  margin-bottom: 16px;
}

.content {
  padding: 60px 0 100px;
}

.content-narrow {
  max-width: 760px;
}

/* 單曲頁 */
.song-single-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: end;
}

.song-details {
  border-top: 1px solid var(--sv-border-light);
  padding-top: 18px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--sv-border);
  padding: 12px 0;
  font-size: 13px;
}

.detail-row span:first-child {
  color: var(--sv-muted);
}

.player-box {
  background: var(--sv-card-bg);
  padding: 28px;
  margin-top: 40px;
  border: 1px solid var(--sv-border);
  border-radius: 12px;
}

.player-box audio {
  width: 100%;
}

/* 上載表單 */
.upload-wrap {
  max-width: 780px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-field {
  margin-bottom: 20px;
}

.form-field label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--sv-muted);
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  border: 1px solid var(--sv-border);
  background: var(--sv-card-bg);
  color: #fff;
  padding: 13px 14px;
  border-radius: 8px;
  outline: none;
}

.form-field textarea {
  min-height: 150px;
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--sv-accent);
}

.notice {
  padding: 15px 18px;
  border: 1px solid var(--sv-border);
  margin-bottom: 22px;
  background: var(--sv-card-bg);
  border-radius: 8px;
}

.notice.error {
  border-color: #9c4b4b;
  color: #ff9b9b;
}

.notice.success {
  border-color: #547458;
  color: #92e098;
}

/* 頁尾 */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--sv-border);
  background: #09090b;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  font-size: 12px;
  color: var(--sv-muted);
}

/* ===================================================
   8. RESPONSIVE BREAKPOINTS
=================================================== */
@media (max-width: 900px) {
  .site-header {
    background: rgba(14, 14, 16, 0.95);
  }
  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 80px;
    background: #141417;
    padding: 24px;
    border-bottom: 1px solid var(--sv-border);
    flex-direction: column;
    align-items: flex-start;
  }
  .nav.is-open {
    display: flex;
  }
  .menu-toggle {
    display: block;
  }
  .sv-hero-foreground {
    flex-direction: column;
    align-items: flex-start;
  }
  .sv-glass-player {
    width: 100%;
  }
  .song-single-head {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .sv-dual-grid {
    grid-template-columns: 1fr;
  }
  .sv-chart-item {
    grid-template-columns: 40px 40px 1fr 50px;
  }
  .sv-chart-genre {
    display: none;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(calc(100% - 32px), var(--max));
  }
  .sv-hero-title {
    font-size: 2.3rem;
  }
  .section {
    padding: 70px 0;
  }
  .footer-inner {
    flex-direction: column;
  }
}

/* 1. 強制重置 Body 頂部與邊距 */
html, body {
  margin: 0 !important;
  padding: 0 !important;
  background-color: #0e0e10 !important;
}

/* 2. 徹底解決頂部白色橫條：將 Header 變為絕對定位懸浮 */
.site-header {
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 80px !important;
  background: transparent !important;
  background-color: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12) !important;
  z-index: 999 !important;
}

.site-header .header-inner {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header a, 
.site-header .logo {
  color: #ffffff !important;
}

.site-header .nav-cta {
  border: 1px solid rgba(255, 255, 255, 0.4) !important;
  color: #ffffff !important;
  background: rgba(0, 0, 0, 0.2) !important;
  backdrop-filter: blur(8px);
}

/* 3. HERO 區塊：鎖定 100vh 撐滿整個螢幕 */
.sv-hero-bg-section {
  position: relative !important;
  width: 100vw !important;
  height: 100vh !important;
  min-height: 700px !important;
  margin: 0 !important;
  padding: 0 !important;
  background-size: cover !important;
  background-position: top center !important;
  background-repeat: no-repeat !important;
  display: flex !important;
  align-items: center !important;
  box-sizing: border-box !important;
}

/* 4. 加重暗色電影遮罩（解決文字撞光睇唔到問題） */
.sv-hero-scrim {
  position: absolute !important;
  inset: 0 !important;
  background: linear-gradient(
    90deg, 
    rgba(10, 10, 12, 0.85) 0%, 
    rgba(10, 10, 12, 0.6) 45%, 
    rgba(10, 10, 12, 0.2) 100%
  ),
  linear-gradient(
    180deg,
    rgba(10, 10, 12, 0.5) 0%,
    transparent 40%,
    rgba(10, 10, 12, 0.95) 100%
  ) !important;
  z-index: 1 !important;
}

/* 5. 內容層：左對齊、增加字體陰影與字距 */
.sv-hero-foreground {
  position: relative !important;
  z-index: 2 !important;
  width: 100% !important;
  max-width: 1300px !important;
  margin: 0 auto !important;
  padding: 0 40px !important;
  box-sizing: border-box !important;
}

.sv-hero-content {
  max-width: 620px !important;
}

.sv-label-tag {
  color: rgba(255, 255, 255, 0.85) !important;
  font-size: 12px !important;
  letter-spacing: 0.15em !important;
  font-weight: 700 !important;
  margin-bottom: 20px !important;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.sv-hero-title {
  color: #ffffff !important;
  font-size: clamp(3rem, 5.5vw, 5rem) !important;
  font-weight: 800 !important;
  line-height: 1.05 !important;
  letter-spacing: -0.03em !important;
  margin: 0 0 20px 0 !important;
  text-shadow: 0 4px 20px rgba(0,0,0,0.6);
}

.sv-hero-title em {
  font-family: Georgia, serif !important;
  font-style: italic !important;
  font-weight: 400 !important;
  color: #f3ede2 !important;
  display: block !important;
  font-size: 0.6em !important;
  margin-top: 10px !important;
}

.sv-hero-desc {
  color: rgba(255, 255, 255, 0.85) !important;
  font-size: 16px !important;
  line-height: 1.7 !important;
  max-width: 480px !important;
  margin: 0 0 36px 0 !important;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.sv-hero-actions {
  display: flex !important;
  gap: 16px !important;
}

.sv-hero-actions .btn {
  height: 48px !important;
  padding: 0 28px !important;
  border-radius: 999px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.btn.sv-btn-pill-solid {
  background: #ffffff !important;
  color: #000000 !important;
  border: none !important;
}

.btn.sv-btn-pill-ghost {
  background: rgba(0, 0, 0, 0.3) !important;
  color: #ffffff !important;
  border: 1px solid rgba(255, 255, 255, 0.4) !important;
  backdrop-filter: blur(10px);
}