/* ===== CSS Variables ===== */
:root {
  --primary: #ff6b9d;
  --primary-light: #fff0f5;
  --primary-dark: #e8437a;
  --secondary: #ffb6c1;
  --accent: #ff8fab;
  --bg: #fef6f9;
  --bg-card: rgba(255,255,255,0.85);
  --text: #5a3d4a;
  --text-secondary: #b8869a;
  --glass-border: rgba(255,107,157,0.12);
  --shadow: 0 8px 32px rgba(255,107,157,0.1);
  --radius: 16px;
  --font: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}
::selection { background: var(--primary); color: #fff; }

/* ===== 线条小狗装饰 ===== */
.dog-deco {
  position: absolute;
  font-size: 32px;
  opacity: 0.15;
  pointer-events: none;
  user-select: none;
}
.dog-left { left: 20px; top: 50%; transform: translateY(-50%); }
.dog-right { right: 20px; top: 50%; transform: translateY(-50%) scaleX(-1); }
.dog-bottom { bottom: 10px; right: 20px; font-size: 24px; opacity: 0.1; }
.dog-top { top: 10px; left: 20px; font-size: 20px; opacity: 0.1; }

/* ===== Loader ===== */
.loader {
  position:fixed; inset:0; z-index:99999;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  background: linear-gradient(135deg, #fef6f9, #fff0f5);
  transition:opacity 0.8s;
}
.loader.hide { opacity:0; pointer-events:none; }
.loader-heart { font-size:48px; animation:loaderPulse 1s ease infinite; }
@keyframes loaderPulse { 0%,100%{transform:scale(1)} 50%{transform:scale(1.2)} }
.loader-text { color:var(--text-secondary); font-size:14px; margin-top:16px; letter-spacing:2px; }

/* ===== Login Page ===== */
/* Improve initial rendering performance */
.hero-section { content-visibility: auto; contain-intrinsic-size: 600px; }
#homeContent { content-visibility: auto; contain-intrinsic-size: 1000px; }
.timeline, .gallery-masonry { content-visibility: auto; contain-intrinsic-size: 500px; }

.login-overlay {
  position:fixed; inset:0; z-index:9998;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, #fff5f7 0%, #fce4ec 30%, #f8e8f0 70%, #fff0f5 100%);
  position:relative;
}
.login-particles { position:absolute; inset:0; }
.login-card {
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 2px solid var(--glass-border);
  padding: 48px 40px;
  border-radius: 28px;
  text-align: center;
  max-width: 380px; width: 90%;
  position: relative;
  z-index: 1;
  animation: cardIn 0.8s ease;
  box-shadow: 0 20px 60px rgba(255,107,157,0.15);
}
@keyframes cardIn { from { opacity:0; transform:translateY(40px) scale(0.95); } to { opacity:1; transform:translateY(0) scale(1); } }
.login-heart { font-size:56px; margin-bottom:12px; animation:float 3s ease infinite; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }
.login-title {
  font-size: 30px; font-weight: 800;
  color: var(--primary-dark);
}
.login-sub { color:var(--text-secondary); font-size:14px; margin:10px 0 28px; }
.login-form { display:flex; gap:10px; }
.login-form input {
  flex:1; padding:14px 18px; border:2px solid #f5d6e0;
  border-radius:14px; font-size:16px; background:#fff;
  color:var(--text); outline:none; transition:border-color 0.3s;
}
.login-form input:focus { border-color:var(--primary); }
.login-form input::placeholder { color:#d4b5c4; }
.login-form button {
  padding:14px 24px; border:none; border-radius:14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color:#fff; font-size:15px; font-weight:600; cursor:pointer;
  transition:transform 0.2s, box-shadow 0.2s;
}
.login-form button:hover { transform:translateY(-2px); box-shadow:0 8px 30px rgba(255,107,157,0.3); }
.pwd-error { color:var(--primary); font-size:13px; margin-top:12px; }

/* ===== App Layout ===== */
.app { display:none; }
.app.show { display:block; }

/* ===== Navigation ===== */
.navbar {
  position:fixed; top:0; left:0; right:0; z-index:100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  transition: transform 0.3s;
}
.navbar.hidden { transform:translateY(-100%); }
.nav-container {
  max-width: 1100px; margin:0 auto; padding:0 24px;
  display:flex; align-items:center; justify-content:space-between; height:60px;
}
.nav-logo { font-size:18px; font-weight:700; color:var(--primary-dark); cursor:pointer; }
.nav-menu { display:flex; gap:4px; }
.nav-item {
  padding:8px 16px; border-radius:12px; font-size:14px; color:var(--text-secondary);
  cursor:pointer; transition:all 0.3s; text-decoration:none;
}
.nav-item:hover { background:var(--primary-light); color:var(--primary-dark); }
.nav-item.active { background:var(--primary); color:#fff; }
.nav-toggle { display:none; background:none; border:none; color:var(--primary); font-size:24px; cursor:pointer; }

/* ===== Hero Section ===== */
.hero-section {
  position:relative; height:100vh; min-height:600px;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
  background: linear-gradient(135deg, #fff5f7 0%, #fce4ec 30%, #f8e8f0 70%, #fff0f5 100%);
}
.hero-section canvas { position:absolute; inset:0; }
.hero-overlay {
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.6) 100%);
}
.hero-content {
  position:relative; z-index:2; text-align:center; padding:20px;
  animation: heroIn 1.2s ease;
}
@keyframes heroIn { from { opacity:0; transform:translateY(60px); } to { opacity:1; transform:translateY(0); } }
.hero-badge {
  display:inline-block; padding:6px 20px; border-radius:20px;
  background:rgba(255,107,157,0.12); border:1px solid rgba(255,107,157,0.2);
  font-size:14px; color:var(--primary); margin-bottom:20px;
}
.hero-main-title {
  font-size: clamp(36px, 7vw, 72px); font-weight:800; line-height:1.2;
  color:var(--text); margin-bottom:20px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-counter { margin:20px 0; }
.counter-number {
  font-size: clamp(48px, 10vw, 96px); font-weight:900;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  line-height:1;
}
.counter-sublabel { color:var(--text-secondary); font-size:14px; margin-top:8px; letter-spacing:2px; }
.hero-quote { color:var(--text-secondary); font-size:16px; margin-top:16px; }
.hero-scroll {
  position:absolute; bottom:40px; left:50%; transform:translateX(-50%);
  color:var(--text-secondary); font-size:12px; cursor:pointer;
  display:flex; flex-direction:column; align-items:center; gap:8px;
  animation: fadeInUp 1s ease 1s both;
}
.hero-scroll span { background:rgba(255,255,255,0.6); padding:4px 16px; border-radius:12px; }
.scroll-arrow { font-size:20px; animation:bounce 2s ease infinite; color:var(--primary); }
@keyframes bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(8px)} }

/* ===== Section ===== */
.section { padding:40px 0; }
.container { max-width:1100px; margin:0 auto; padding:0 24px; }
.section-title {
  font-size: 22px; font-weight:700; margin-bottom:24px;
  color: var(--text);
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: ' 🐶';
  font-size: 18px;
}
.section-header {
  display:flex; align-items:center; justify-content:space-between; margin-bottom:24px;
}
.section-more {
  color:var(--primary); font-size:14px; cursor:pointer; transition:opacity 0.2s;
  background: var(--primary-light); padding:6px 16px; border-radius:16px;
}
.section-more:hover { opacity:0.7; }

/* ===== Stats ===== */
.stats-section { padding-top:0; margin-top:-40px; position:relative; z-index:3; }
.stats-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:16px;
}
.stat-card {
  text-align:center; padding:24px 16px; border-radius:var(--radius);
  transition:transform 0.3s;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(255,107,157,0.06);
}
.stat-card:hover { transform:translateY(-4px); }
.stat-icon {
  font-size: 34px;
  line-height: 1.3;
  text-align: center;
  padding: 6px 0 2px;
  display: block;
}
.stat-num { font-size:28px; font-weight:800; color:var(--primary-dark); }
.stat-label { color:var(--text-secondary); font-size:13px; margin-top:4px; }

/* ===== Milestones ===== */
.milestones-grid { display:flex; flex-direction:column; gap:10px; }
.milestone-item {
  display:flex; align-items:center; gap:16px;
  padding:16px 20px; border-radius:14px;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--glass-border);
  transition:transform 0.2s;
}
.milestone-item:hover { transform:translateX(6px); }
.milestone-icon { font-size:24px; width:36px; text-align:center; flex-shrink:0; }
.milestone-info { flex:1; min-width:0; }
.milestone-label { font-size:15px; font-weight:600; color:var(--text); }
.milestone-date { font-size:12px; color:var(--text-secondary); margin-top:2px; }
.milestone-status { font-size:12px; padding:4px 12px; border-radius:10px; white-space:nowrap; }
.milestone-item.passed .milestone-status { background:#e8f5e9; color:#4caf50; }
.milestone-item.upcoming .milestone-status { background:#fff3e0; color:#ff9800; }

/* ===== Love Quote ===== */
.quote-card {
  background: linear-gradient(135deg, rgba(255,107,157,0.08), rgba(255,182,193,0.12));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.quote-card::before {
  content: '"';
  position: absolute;
  top: -10px; left: 16px;
  font-size: 80px;
  color: rgba(255,107,157,0.1);
  font-family: Georgia, serif;
  line-height: 1;
}
.quote-card::after {
  content: '"';
  position: absolute;
  bottom: -40px; right: 16px;
  font-size: 80px;
  color: rgba(255,107,157,0.1);
  font-family: Georgia, serif;
  line-height: 1;
}
.quote-text {
  font-size: 18px;
  color: var(--text);
  line-height: 1.8;
  font-weight: 500;
  min-height: 60px;
  transition: opacity 0.5s;
}
.quote-text.fade { opacity: 0; }
.quote-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 16px;
}
.quote-nav-btn {
  background: none;
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  width: 32px; height: 32px;
  font-size: 14px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.quote-nav-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.quote-nav-dots {
  display: flex;
  gap: 6px;
}
.quote-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--secondary);
  transition: all 0.3s;
}
.quote-dot.active { background: var(--primary); width: 20px; border-radius: 3px; }

/* ===== Photo Strip ===== */
.photo-strip {
  display:grid; grid-template-columns:repeat(6,1fr); gap:8px;
}
.photo-strip img {
  width:100%; aspect-ratio:1; object-fit:cover; border-radius:14px;
  cursor:pointer; transition:transform 0.3s, box-shadow 0.3s;
  border: 2px solid rgba(255,255,255,0.5);
  background: #f5e5ec; /* placeholder */
}
.photo-strip img:hover { transform:scale(1.04); box-shadow:0 8px 24px rgba(255,107,157,0.2); z-index:2; position:relative; }

/* ===== Latest Memories ===== */
.latest-memories { display:flex; flex-direction:column; gap:12px; }
.latest-card {
  display:flex; align-items:center; gap:16px;
  padding:18px 20px; border-radius:14px;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--glass-border);
  cursor:pointer; transition:all 0.3s;
}
.latest-card:hover { transform:translateX(6px); background: rgba(255,255,255,0.95); }
.latest-card-icon { font-size:28px; }
.latest-card-info { flex:1; }
.latest-card-title { font-size:15px; font-weight:600; color:var(--text); }
.latest-card-date { font-size:12px; color:var(--text-secondary); margin-top:2px; }
.latest-card-text { font-size:13px; color:var(--text-secondary); margin-top:4px; display:-webkit-box; -webkit-line-clamp:1; -webkit-box-orient:vertical; overflow:hidden; }

/* ===== Page Header ===== */
.page-hero-sm {
  padding: 100px 24px 40px; text-align:center;
  background: linear-gradient(180deg, #fff0f5 0%, transparent 100%);
  position: relative;
}
.page-hero-sm h1 { font-size:32px; font-weight:800; color:var(--text); }
.page-hero-sm p { color:var(--text-secondary); font-size:15px; margin-top:8px; }

/* ===== Filter Tabs ===== */
.filter-tabs { display:flex; gap:8px; flex-wrap:wrap; margin-bottom:24px; }
.filter-tab {
  padding:6px 18px; border:1px solid #f5d6e0; border-radius:20px;
  background:#fff; color:var(--text-secondary); font-size:13px;
  cursor:pointer; transition:all 0.3s;
}
.filter-tab:hover { border-color:var(--primary); color:var(--primary); }
.filter-tab.active { background:var(--primary); border-color:var(--primary); color:#fff; }

/* ===== Timeline ===== */
.timeline {
  position:relative; padding-left:40px;
}
.timeline::before {
  content:''; position:absolute; left:12px; top:0; bottom:0;
  width:3px; background: linear-gradient(180deg, var(--primary), var(--secondary), #f8e8f0);
  border-radius: 2px;
}
.timeline-card {
  position:relative; padding:20px; margin-bottom:20px;
  border-radius:16px; background: rgba(255,255,255,0.85);
  border: 1px solid var(--glass-border);
  transition:transform 0.3s;
  box-shadow: 0 2px 12px rgba(255,107,157,0.04);
}
.timeline-card:hover { transform:translateX(4px); }
.timeline-card::before {
  content:''; position:absolute; left:-30px; top:24px;
  width:12px; height:12px; border-radius:50%;
  background:var(--primary); border: 3px solid #fff;
  box-shadow: 0 0 12px rgba(255,107,157,0.3);
}
.timeline-date { font-size:12px; color:var(--text-secondary); margin-bottom:8px; }
.timeline-title { font-size:17px; font-weight:600; color:var(--text); margin-bottom:8px; }
.timeline-text { font-size:14px; line-height:1.7; color:var(--text-secondary); white-space:pre-wrap; }

/* Chat bubbles */
.chat-bubble {
  display:inline-block; padding:10px 16px; border-radius:16px; margin-bottom:8px;
  font-size:14px; line-height:1.5; max-width:80%;
}
.chat-bubble.his {
  background:#e3f2fd; border:1px solid #bbdefb;
  border-radius:16px 16px 16px 4px; color:#1565c0;
}
.chat-bubble.hers {
  background:var(--primary-light); border:1px solid #f8bbd0;
  border-radius:16px 16px 4px 16px; color:var(--primary-dark);
  margin-left:auto;
}
.chat-label { font-size:11px; color:var(--text-secondary); margin-bottom:4px; }

/* ===== Gallery ===== */
.gallery-masonry {
  columns: 3; column-gap: 12px;
}
/* ===== Wish List ===== */
.wish-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}
.wish-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-radius: 14px;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--glass-border);
  transition: all 0.3s;
  cursor: pointer;
}
.wish-item:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(255,107,157,0.1); }
.wish-item.done {
  opacity: 0.6;
  text-decoration: line-through;
}
.wish-item.done .wish-icon { filter: grayscale(1); }
.wish-icon { font-size: 24px; flex-shrink: 0; }
.wish-text { font-size: 14px; color: var(--text); flex: 1; }
.wish-check {
  width: 22px; height: 22px;
  border: 2px solid var(--secondary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
  transition: all 0.2s;
  color: transparent;
}
.wish-item.done .wish-check {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ===== Next Milestone Countdown ===== */
#nextMilestone { margin-bottom: 20px; }
.next-milestone-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 8px 32px rgba(255,107,157,0.25);
  animation: milestonePulse 2s ease infinite;
}
@keyframes milestonePulse {
  0%,100% { box-shadow: 0 8px 32px rgba(255,107,157,0.25); }
  50% { box-shadow: 0 8px 40px rgba(255,107,157,0.4); }
}
.next-milestone-icon { font-size: 36px; }
.next-milestone-info { flex: 1; }
.next-milestone-label { font-size: 12px; opacity: 0.8; margin-bottom: 4px; }
.next-milestone-name { font-size: 20px; font-weight: 700; }
.next-milestone-date { font-size: 12px; opacity: 0.7; margin-top: 4px; }
.next-milestone-countdown {
  text-align: center;
  background: rgba(255,255,255,0.2);
  border-radius: 14px;
  padding: 12px 18px;
  min-width: 80px;
}
.next-milestone-num { font-size: 32px; font-weight: 900; line-height: 1; }
.next-milestone-unit { font-size: 11px; opacity: 0.8; margin-top: 4px; }

/* ===== Future Plans (新家计划) ===== */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
}
.plan-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--glass-border);
  transition: all 0.3s;
  cursor: pointer;
}
.plan-item:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(255,107,157,0.1); }
.plan-item.done {
  opacity: 0.6;
  text-decoration: line-through;
}
.plan-icon { font-size: 20px; flex-shrink: 0; }
.plan-text { font-size: 13px; color: var(--text); flex: 1; }
.plan-check {
  width: 20px; height: 20px;
  border: 2px solid var(--secondary);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
  transition: all 0.2s;
  color: transparent;
}
.plan-item.done .plan-check {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.plan-progress-bar {
  height: 6px;
  background: #f5d6e0;
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 6px;
}
.plan-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  border-radius: 3px;
  transition: width 0.5s ease;
}
.plan-progress-text {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
}

/* ===== Today's Memory ===== */
.today-memory-card {
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 20px;
}
.today-memory-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.today-memory-badge {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--primary-light);
  padding: 4px 14px;
  border-radius: 20px;
}
.today-memory-shuffle {
  background: none;
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}
.today-memory-shuffle:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.today-memory-date { font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; }
.today-memory-title { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.today-memory-text { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.today-memory-photos { display: flex; gap: 8px; margin-top: 12px; }
.today-memory-photos img { transition: transform 0.2s; }
.today-memory-photos img:hover { transform: scale(1.1); }

/* ===== Love Diary ===== */
.diary-form {
  padding: 20px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--glass-border);
  margin-bottom: 20px;
}
.diary-avatar { font-size: 32px; text-align: center; margin-bottom: 10px; }
.diary-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #f5d6e0;
  border-radius: 14px;
  background: #fff;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  resize: vertical;
  outline: none;
  transition: border-color 0.3s;
}
.diary-form textarea:focus { border-color: var(--primary); }
.diary-form textarea::placeholder { color: #d4b5c4; }
.diary-actions {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}
.diary-mood-select {
  padding: 10px 14px;
  border: 2px solid #f5d6e0;
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  font-size: 13px;
  outline: none;
  cursor: pointer;
}
.diary-mood-select:focus { border-color: var(--primary); }
.diary-actions button {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.2s;
}
.diary-actions button:hover { transform: translateY(-2px); }
.diary-list { display: flex; flex-direction: column; gap: 10px; }
.diary-item {
  padding: 14px 18px;
  border-radius: 14px;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--glass-border);
  animation: diaryIn 0.3s ease;
}
@keyframes diaryIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.diary-item-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.diary-item-date { font-size: 12px; font-weight: 600; color: var(--primary-dark); }
.diary-item-time { font-size: 11px; color: var(--text-secondary); }
.diary-item-text { font-size: 14px; line-height: 1.6; color: var(--text); }
.diary-item-mood { font-size: 18px; margin-top: 6px; }

/* ===== Achievements ===== */
.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}
.achievement-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--glass-border);
  transition: all 0.3s;
}
.achievement-item:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(255,107,157,0.1); }
.achievement-item.locked { opacity: 0.5; }
.achievement-icon { font-size: 24px; flex-shrink: 0; }
.achievement-info { flex: 1; min-width: 0; }
.achievement-title { font-size: 14px; font-weight: 600; color: var(--text); }
.achievement-desc { font-size: 11px; color: var(--text-secondary); margin-top: 2px; }
.achievement-check { font-size: 14px; color: #4caf50; }
.achievement-locked { font-size: 12px; opacity: 0.4; }

/* ===== Couple Quiz ===== */
#quizContainer { max-width: 600px; margin: 0 auto; }
.quiz-card {
  padding: 20px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--glass-border);
  margin-bottom: 16px;
  text-align: center;
}
.quiz-icon { font-size: 32px; margin-bottom: 8px; }
.quiz-question {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
}
.quiz-answers {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.quiz-answer {
  flex: 1;
  padding: 12px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.quiz-answer.her {
  background: var(--primary-light);
  border: 1px solid #f8bbd0;
}
.quiz-answer.him {
  background: #e3f2fd;
  border: 1px solid #bbdefb;
}
.quiz-label { font-size: 11px; color: var(--text-secondary); font-weight: 600; }
.quiz-answer span:last-child { font-size: 14px; color: var(--text); font-weight: 500; }
.quiz-match {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: #4caf50;
}
.quiz-nomatch {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-secondary);
}

.gallery-masonry img {
  width:100%; border-radius:16px; margin-bottom:12px;
  cursor:pointer; transition:transform 0.3s;
  break-inside:avoid;
  border: 2px solid rgba(255,255,255,0.5);
  background: #f5e5ec; /* placeholder background while loading */
}
.gallery-masonry img:hover { transform:scale(1.02); }

/* ===== Letter Board ===== */
.letter-form {
  padding:24px; border-radius:20px; margin-bottom:24px;
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--glass-border);
  display:flex; flex-direction:column; gap:12px;
}
.letter-avatar { font-size:36px; text-align:center; }
.letter-form textarea {
  width:100%; padding:14px 18px; border:2px solid #f5d6e0; border-radius:14px;
  background:#fff; color:var(--text); font-size:14px; resize:vertical;
  font-family:var(--font); outline:none; transition:border-color 0.3s;
}
.letter-form textarea:focus { border-color:var(--primary); }
.letter-form textarea::placeholder { color:#d4b5c4; }
.letter-actions { display:flex; gap:10px; }
.letter-actions input {
  padding:12px 16px; border:2px solid #f5d6e0; border-radius:12px;
  background:#fff; color:var(--text); font-size:14px; width:80px; outline:none;
}
.letter-actions button {
  flex:1; padding:12px; border:none; border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff; font-weight:600; cursor:pointer; font-size:14px;
  transition:transform 0.2s;
}
.letter-actions button:hover { transform:translateY(-2px); }

.letters-wall { display:flex; flex-direction:column; gap:12px; }
.letter-item {
  padding:16px 20px; border-radius:16px;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--glass-border);
  animation: letterIn 0.4s ease;
}
@keyframes letterIn { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
.letter-header { display:flex; align-items:center; gap:8px; margin-bottom:8px; }
.letter-author { font-size:13px; font-weight:600; color:var(--text); }
.letter-time { font-size:11px; color:var(--text-secondary); }
.letter-content { font-size:14px; line-height:1.6; color:var(--text-secondary); }
.empty-state { text-align:center; padding:40px; color:var(--text-secondary); font-size:14px; }

/* ===== Footer ===== */
.footer {
  margin-top:60px; padding:40px 0; text-align:center;
  border-top:1px solid var(--glass-border);
}
.footer-heart { font-size:32px; margin-bottom:12px; }
.footer-text { color:var(--text-secondary); font-size:14px; }
.footer-date { color:#d4b5c4; font-size:12px; margin-top:8px; }

/* ===== Music Float Player ===== */
.music-float {
  position:fixed; bottom:24px; right:24px; z-index:50; width:220px;
  animation: floatIn 1s ease 2s both;
}
@keyframes floatIn { from { opacity:0; transform:translateY(30px); } to { opacity:1; transform:translateY(0); } }
.music-float-handle {
  display:flex; align-items:center; gap:8px;
  background:rgba(255,255,255,0.95);
  backdrop-filter:blur(12px);
  border:1px solid var(--glass-border);
  border-radius:50px; padding:10px 18px;
  cursor:pointer; box-shadow:0 4px 20px rgba(255,107,157,0.12);
  transition:all 0.2s;
}
.music-float-handle:hover { box-shadow:0 6px 24px rgba(255,107,157,0.2); }
.music-float-icon { font-size:20px; }
.music-float-title { font-size:13px; font-weight:600; color:var(--text); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }

.music-float-panel {
  display:none;
  margin-top:8px;
  background:rgba(255,255,255,0.95);
  backdrop-filter:blur(12px);
  border:1px solid var(--glass-border);
  border-radius:16px;
  padding:14px;
  box-shadow:0 8px 32px rgba(255,107,157,0.12);
}
.music-float-panel.show { display:block; animation:panelIn 0.3s ease; }
@keyframes panelIn { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }
.music-panel-titlebar { display:flex; justify-content:space-between; align-items:center; margin-bottom:8px; }
.music-panel-titlebar span { font-size:14px; font-weight:600; color:var(--text); }
.music-panel-x { background:none; border:none; color:var(--text-secondary); cursor:pointer; font-size:16px; }
.music-panel-body { text-align:center; }
.music-panel-body iframe { border:none; border-radius:8px; }
.music-panel-tip { text-align:center; font-size:12px; color:var(--text-secondary); margin:8px 0 4px; }
.music-backup-btn {
  width:100%; margin-top:8px; padding:8px; border:none; border-radius:10px;
  background:var(--primary-light); color:var(--primary-dark);
  font-size:12px; cursor:pointer; transition:background 0.2s;
}
.music-backup-btn:hover { background:var(--primary); color:#fff; }

@media (max-width:768px) {
  .music-float { bottom:16px; right:16px; width:180px; }
  .music-float-panel { width:260px; }
}

/* ===== Page Toggle (SPA mode) ===== */
.page { display: none; }
.page.active { display: block; }

/* ===== Lightbox ===== */
.lightbox {
  display:none; position:fixed; inset:0; z-index:9997;
  background:rgba(0,0,0,0.9);
  align-items:center; justify-content:center;
}
.lightbox.show { display:flex; }
.lb-img { max-width:85vw; max-height:85vh; border-radius:16px; object-fit:contain; }
.lb-close {
  position:absolute; top:24px; right:32px; font-size:28px; color:rgba(255,255,255,0.6);
  cursor:pointer; transition:color 0.2s; z-index:1;
}
.lb-close:hover { color:#fff; }
.lb-prev, .lb-next {
  position:absolute; top:50%; transform:translateY(-50%);
  font-size:48px; color:rgba(255,255,255,0.4); cursor:pointer;
  padding:20px; transition:color 0.2s; user-select:none; z-index:1;
}
.lb-prev:hover, .lb-next:hover { color:#fff; }
.lb-prev { left:20px; } .lb-next { right:20px; }
.lb-counter {
  position:absolute; bottom:24px; left:50%; transform:translateX(-50%);
  color:rgba(255,255,255,0.3); font-size:13px;
}

/* ===== Back to Top ===== */
.back-to-top {
  position:fixed; bottom:80px; right:24px; z-index:50;
  width:42px; height:42px; border-radius:50%; border:1px solid var(--glass-border);
  background:rgba(255,255,255,0.9); backdrop-filter:blur(10px);
  color:var(--primary); font-size:20px; cursor:pointer;
  display:none; transition:all 0.3s;
}
.back-to-top.show { display:block; }
.back-to-top:hover { background:var(--primary); color:#fff; transform:translateY(-3px); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-menu { display:none; }
  .nav-menu.open { display:flex; flex-direction:column; position:absolute; top:60px; left:0; right:0; background:rgba(255,255,255,0.95); padding:12px; border-bottom:1px solid var(--glass-border); }
  .nav-toggle { display:block; }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .photo-strip { grid-template-columns:repeat(3,1fr); }
  .gallery-masonry { columns:2; }
  .hero-main-title { font-size:clamp(28px,8vw,48px); }
  .music-player { bottom:16px; right:16px; max-width:240px; }
  .lb-prev { left:10px; font-size:30px; }
  .lb-next { right:10px; font-size:30px; }
  .letter-actions { flex-direction:column; }
  .letter-actions input { width:100%; }
  .timeline { padding-left: 30px; }
  .timeline-card::before { left: -22px; width: 10px; height: 10px; }
  .timeline::before { left: 9px; }
}

@media (max-width: 480px) {
  .photo-strip { grid-template-columns:repeat(2,1fr); }
  .gallery-masonry { columns:1; }
  .stats-grid { gap:10px; }
  .stat-card { padding:16px 12px; }
  .stat-num { font-size:22px; }
  .login-card { padding:36px 24px; }
}