/* ═══════════ 旧时光手帐 · Diary Retro Theme ═══════════ */
/* 概念：泛黄的旧笔记本 — 暖米纸、钢笔楷体、印章红、牛皮纸胶带、噪点纹理 */

:root{
  --paper:#f6ecd8;          /* 主纸色（暖米） */
  --paper-dark:#efe2c6;     /* 深纸色 */
  --ink:#3f3226;            /* 墨色 */
  --ink-soft:#6b5d4d;       /* 软墨 */
  --ink-faint:#9a8a74;      /* 淡墨 */
  --seal-red:#b03a2e;       /* 印章红 */
  --life:#2f6f4f;           /* 生活 · 墨绿 */
  --work:#3a5f8a;           /* 工作 · 墨蓝 */
  --reflect:#7a4a7c;        /* 思考 · 墨紫 */
  --tape:#e0c9a0;           /* 牛皮纸胶带 */
  --font-serif:"Kaiti SC","KaiTi","STKaiti","楷体","楷体_GB2312","Noto Serif CJK SC","Songti SC",serif;
  --font-type:"Courier New","Courier",monospace;
  --font-body:"Songti SC","STSong","SimSun","Noto Serif CJK SC","Kaiti SC",serif;
  --shadow-card:0 2px 0 rgba(63,50,38,.08), 0 10px 30px rgba(63,50,38,.12);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-serif);
  line-height:1.85;
  /* 纸张噪点 + 柔和旧纸渐变 */
  background-image:
    radial-gradient(ellipse at 20% 10%, rgba(255,248,224,.6) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 90%, rgba(196,164,120,.18) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 width=%27100%27 height=%27100%27%3E%3Cfilter id=%27n%27%3E%3CfeTurbulence type=%27fractalNoise%27 baseFrequency=%270.9%27 numOctaves=%272%27/%3E%3CfeColorMatrix type=%27matrix%27 values=%270 0 0 0 0.25 0 0 0 0 0.22 0 0 0 0 0.18 0 0 0 0.05 0%27/%3E%3C/filter%3E%3Crect width=%27100%25%27 height=%27100%25%27 filter=%27url(%23n)%27/%3E%3C/svg%3E");
  background-attachment:fixed;
  min-height:100vh;
}

a{color:var(--ink);text-decoration:none}
a:hover{text-decoration:underline}

/* ─── 打字机日期（Courier，红色小字） ─── */
.type-date{
  font-family:var(--font-type);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--ink-faint);
  text-transform:uppercase;
}

/* ─── 顶栏：像旧笔记本封面的标签 ─── */
.top-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding:14px 22px;
  background:rgba(246,236,216,.92);
  backdrop-filter:blur(4px);
  border-bottom:1px solid rgba(176,58,46,.25);
  position:sticky;
  top:0;
  z-index:50;
}
.top-bar .brand{
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--ink);
}
.top-bar .brand .seal-dot{
  display:inline-block;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--seal-red);
  margin-right:8px;
  box-shadow:0 0 0 3px rgba(176,58,46,.15);
}

/* ─── 按钮：像盖章 ─── */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:9px 22px;
  background:var(--ink);
  color:var(--paper);
  border:none;
  border-radius:2px;
  font-family:var(--font-serif);
  font-size:14px;
  font-weight:600;
  letter-spacing:.1em;
  cursor:pointer;
  text-decoration:none;
  box-shadow:0 2px 0 rgba(63,50,38,.2);
  transition:transform .15s, box-shadow .15s;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 3px 0 rgba(63,50,38,.2);text-decoration:none}
.btn:active{transform:translateY(1px);box-shadow:0 1px 0 rgba(63,50,38,.2)}
.btn.red{background:var(--seal-red)}
.btn.ghost{
  background:transparent;
  color:var(--ink);
  border:1px solid rgba(63,50,38,.35);
  box-shadow:none;
}

/* ─── 卡片：像从剪贴簿撕下的纸页 ─── */
.card{
  background:var(--paper-dark);
  border:1px solid rgba(63,50,38,.14);
  border-radius:4px;
  box-shadow:var(--shadow-card);
  position:relative;
}
.card::before{ /* 撕纸边缘 */
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:3px;
  background:repeating-linear-gradient(90deg, rgba(63,50,38,.05) 0 3px, transparent 3px 7px);
}

/* ─── 牛皮纸胶带 ─── */
.tape{
  position:absolute;
  width:96px;height:26px;
  background:rgba(224,201,160,.62);
  box-shadow:0 1px 3px rgba(63,50,38,.15);
  transform:rotate(-4deg);
  top:-14px;left:50%;
  margin-left:-48px;
  z-index:2;
  border-left:1px dashed rgba(63,50,38,.15);
  border-right:1px dashed rgba(63,50,38,.15);
}
.tape.rotate-left{transform:rotate(-7deg)}
.tape.rotate-right{transform:rotate(5deg)}

/* ═══════════ list ═══════════ */
.list-page{
  max-width:760px;
  margin:0 auto;
  padding:34px 18px 80px;
}
.list-heading{
  text-align:center;
  margin:30px 0 40px;
}
.list-heading .eyebrow{
  font-family:var(--font-type);
  font-size:11px;
  letter-spacing:.3em;
  color:var(--ink-faint);
  margin-bottom:10px;
}
.list-heading h1{
  font-family:var(--font-serif);
  font-size:40px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--ink);
  margin:0;
}
.list-heading .stamp{
  display:inline-block;
  margin-top:18px;
  padding:5px 16px;
  border:2px solid var(--seal-red);
  color:var(--seal-red);
  border-radius:50%;
  font-family:var(--font-serif);
  font-size:12px;
  letter-spacing:.3em;
  transform:rotate(-6deg);
  opacity:.85;
}

.backfill-wrap{
  display:flex;
  justify-content:center;
  margin-bottom:44px;
}
.date-form{
  display:flex;
  gap:10px;
  align-items:center;
  background:var(--paper-dark);
  border:1px solid rgba(63,50,38,.18);
  border-radius:4px;
  padding:10px 14px;
  box-shadow:0 1px 0 rgba(255,255,255,.4) inset, 0 6px 18px rgba(63,50,38,.08);
}
.date-form input[type=date]{
  font-family:var(--font-type);
  font-size:13px;
  padding:6px 10px;
  border:1px solid rgba(63,50,38,.25);
  border-radius:2px;
  background:#fffdf6;
  color:var(--ink);
}
.date-form .btn{padding:6px 16px;font-size:13px}

/* 月份分组：月份像旧笔记本页眉 */
.month-group{margin-bottom:38px}
.month-label{
  font-family:var(--font-type);
  font-size:12px;
  letter-spacing:.24em;
  color:var(--seal-red);
  margin-bottom:16px;
  padding-bottom:6px;
  border-bottom:1px dashed rgba(176,58,46,.35);
  text-transform:uppercase;
}
.entry-list{display:flex;flex-direction:column;gap:14px}

/* 条目：倾斜的旧纸卡片 */
.entry-card{
  display:flex;
  align-items:center;
  gap:14px;
  padding:15px 18px;
  background:var(--paper-dark);
  border:1px solid rgba(63,50,38,.12);
  border-radius:3px;
  box-shadow:0 1px 0 rgba(255,255,255,.5) inset, 0 5px 16px rgba(63,50,38,.07);
  text-decoration:none;
  color:var(--ink);
  transition:transform .18s ease, box-shadow .18s ease;
  position:relative;
}
.entry-card:nth-child(odd){transform:rotate(-.3deg)}
.entry-card:nth-child(even){transform:rotate(.25deg)}
.entry-card:hover{
  transform:rotate(0deg) translateY(-2px);
  box-shadow:0 8px 26px rgba(63,50,38,.14);
  text-decoration:none;
}
.entry-date{
  font-family:var(--font-type);
  font-size:15px;
  font-weight:700;
  color:var(--seal-red);
  min-width:78px;
  letter-spacing:.05em;
}
.entry-weekday{
  display:block;
  font-family:var(--font-serif);
  font-size:11px;
  color:var(--ink-faint);
  font-weight:400;
  margin-top:2px;
}
.entry-preview{
  flex:1;
  font-family:var(--font-body);
  font-size:13.5px;
  color:var(--ink-soft);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.entry-meta{
  font-family:var(--font-type);
  font-size:11px;
  color:var(--ink-faint);
  text-align:right;
  min-width:70px;
  white-space:nowrap;
}
.entry-meta .mood{font-size:16px;display:block;margin-bottom:2px}
.entry-meta .count{display:block}

.empty-state{
  text-align:center;
  padding:80px 20px;
  color:var(--ink-faint);
}
.empty-state .big{font-size:52px;margin-bottom:16px}
.empty-state h3{font-family:var(--font-serif);font-size:22px;color:var(--ink);margin:0 0 10px}

/* ═══════════ write ═══════════ */
.write-page{max-width:640px;margin:0 auto;padding:26px 18px 90px}
.write-head{
  text-align:center;
  margin:18px 0 30px;
}
.write-head .type-date{display:block;margin-bottom:8px}
.write-head h1{
  font-family:var(--font-serif);
  font-size:32px;
  letter-spacing:.1em;
  margin:0;
}
.write-head h1 .weekday{color:var(--seal-red)}

.section{
  margin-bottom:34px;
  padding:22px 22px 18px;
  background:var(--paper-dark);
  border:1px solid rgba(63,50,38,.12);
  border-radius:4px;
  box-shadow:0 1px 0 rgba(255,255,255,.5) inset, 0 6px 18px rgba(63,50,38,.06);
  position:relative;
}
.section::after{ /* 右下角页码 */
  content:attr(data-no);
  position:absolute;
  bottom:6px;right:12px;
  font-family:var(--font-type);
  font-size:10px;
  color:var(--ink-faint);
}
.section-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  margin:0 0 6px;
  letter-spacing:.06em;
}
.section-title .rule{
  flex:1;
  height:1px;
  background:linear-gradient(90deg, currentColor, transparent);
  opacity:.3;
}
.section-title.life{color:var(--life)}
.section-title.work{color:var(--work)}
.section-title.reflect{color:var(--reflect)}
.section-sub{
  font-family:var(--font-body);
  font-size:12px;
  color:var(--ink-faint);
  margin:0 0 14px;
}

.ta{
  width:100%;
  padding:14px 16px;
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.9;
  border:1px solid rgba(63,50,38,.2);
  border-radius:2px;
  background:#fffdf6;
  color:var(--ink);
  resize:vertical;
  box-shadow:0 2px 6px rgba(63,50,38,.04) inset;
}
.ta:focus{outline:none;border-color:var(--seal-red);box-shadow:0 0 0 3px rgba(176,58,46,.08)}

.write-meta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:space-between;
  margin-top:6px;
  padding:18px;
  background:rgba(224,201,160,.18);
  border:1px dashed rgba(176,58,46,.3);
  border-radius:4px;
}
.mood-picker{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.mood-picker .label{font-size:12px;color:var(--ink-faint);margin-right:4px}
.mood-opt{
  padding:4px 12px;
  border:1px solid rgba(63,50,38,.2);
  border-radius:20px;
  font-size:13px;
  cursor:pointer;
  white-space:nowrap;
  color:var(--ink-soft);
  background:#fffdf6;
}
.mood-opt.active{border-color:var(--seal-red);background:rgba(176,58,46,.08);color:var(--seal-red);font-weight:600}
.mood-opt input{display:none}
.tag-input{display:flex;align-items:center;gap:6px}
.tag-input .label{font-size:12px;color:var(--ink-faint)}
.tag-input input{
  padding:7px 12px;
  border:1px solid rgba(63,50,38,.2);
  border-radius:2px;
  font-family:var(--font-body);
  font-size:13px;
  background:#fffdf6;
  color:var(--ink);
  width:200px;
}

.draft-banner{
  background:rgba(176,58,46,.07);
  border-left:4px solid var(--seal-red);
  padding:12px 16px;
  margin-bottom:20px;
  font-family:var(--font-body);
  font-size:13px;
  color:var(--ink-soft);
  line-height:1.8;
}

/* ═══════════ read ═══════════ */
.read-page{max-width:640px;margin:0 auto;padding:30px 18px 90px}
.read-head{
  text-align:center;
  margin-bottom:28px;
}
.read-head .type-date{display:block;margin-bottom:6px}
.read-head h1{
  font-family:var(--font-serif);
  font-size:34px;
  letter-spacing:.1em;
  margin:0;
}
.read-head .weekday{color:var(--seal-red)}
.read-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:center;
  margin-top:16px;
}
.read-meta .chip{
  font-family:var(--font-type);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--ink-soft);
  border:1px solid rgba(63,50,38,.2);
  border-radius:2px;
  padding:4px 12px;
  background:rgba(255,253,246,.6);
}

.read-content{
  background:var(--paper-dark);
  border:1px solid rgba(63,50,38,.12);
  border-radius:4px;
  box-shadow:var(--shadow-card);
  padding:32px 34px;
  position:relative;
}
.read-content::before{
  content:"";
  position:absolute;
  left:18px;right:18px;bottom:14px;
  height:14px;
  background:repeating-linear-gradient(90deg, rgba(63,50,38,.05) 0 2px, transparent 2px 4px);
  border-radius:50%;
  transform:rotate(-1deg);
}
.read-content h1{
  font-size:22px;
  margin:0 0 6px;
  letter-spacing:.04em;
}
.read-content h2{
  font-family:var(--font-serif);
  font-size:19px;
  font-weight:700;
  margin:26px 0 10px;
  padding-bottom:6px;
  border-bottom:1px dashed rgba(63,50,38,.25);
}
.read-content h2.life{color:var(--life);border-color:rgba(47,111,79,.3)}
.read-content h2.work{color:var(--work);border-color:rgba(58,95,138,.3)}
.read-content h2.reflect{color:var(--reflect);border-color:rgba(122,74,124,.3)}
.read-content h3{display:none} /* 隐藏二级小标题 */
.read-content p{
  margin:10px 0;
  font-family:var(--font-body);
  font-size:15px;
  color:var(--ink);
}
.read-content ul,.read-content ol{margin:10px 0;padding-left:24px}
.read-content li{margin:6px 0}
.read-content img{
  max-width:100%;
  height:auto;
  border-radius:4px;
  margin:14px 0;
  box-shadow:0 4px 14px rgba(63,50,38,.18);
  cursor:zoom-in;
  transition:transform .15s ease;
}
.read-content img:hover{transform:scale(1.015)}
.read-content blockquote{
  margin:12px 0;
  padding:2px 16px;
  border-left:3px solid var(--seal-red);
  color:var(--ink-soft);
  font-family:var(--font-body);
  background:rgba(176,58,46,.05);
}
.read-content strong{font-weight:700}
.read-content em{font-style:italic}
.read-content code{
  background:rgba(63,50,38,.08);
  padding:2px 6px;
  border-radius:3px;
  font-family:"Courier New",monospace;
  font-size:13px;
}
.read-content pre{
  background:rgba(63,50,38,.9);
  color:#f6ecd8;
  padding:16px;
  border-radius:4px;
  overflow-x:auto;
}
.read-content hr{border:none;border-top:1px dashed rgba(63,50,38,.3);margin:24px 0}

/* lightbox */
.lightbox{
  position:fixed;inset:0;
  background:rgba(40,32,22,.9);
  display:none;
  align-items:center;
  justify-content:center;
  z-index:9999;
  cursor:zoom-out;
  padding:24px;
  box-sizing:border-box;
}
.lightbox.open{display:flex}
.lightbox img{
  max-width:96vw;max-height:96vh;
  object-fit:contain;
  border-radius:4px;
  box-shadow:0 12px 44px rgba(0,0,0,.5);
}

/* ═══════════ login ═══════════ */
.login-page{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:100vh;
  margin:0;
}
.login-box{
  background:var(--paper-dark);
  border:1px solid rgba(63,50,38,.14);
  border-radius:6px;
  box-shadow:var(--shadow-card);
  padding:46px 44px 40px;
  width:100%;
  max-width:380px;
  text-align:center;
  position:relative;
}
.login-box .lock{
  display:inline-block;
  width:64px;height:64px;
  border-radius:50%;
  background:rgba(176,58,46,.1);
  border:2px solid rgba(176,58,46,.4);
  color:var(--seal-red);
  font-size:28px;
  line-height:60px;
  margin-bottom:18px;
}
.login-box h1{
  font-family:var(--font-serif);
  font-size:30px;
  letter-spacing:.14em;
  margin:0 0 6px;
}
.login-box p.sub{
  color:var(--ink-faint);
  font-size:13px;
  margin:0 0 26px;
}
.login-box input[type=password]{
  width:100%;
  padding:13px 14px;
  font-family:var(--font-type);
  font-size:15px;
  border:1px solid rgba(63,50,38,.25);
  border-radius:2px;
  background:#fffdf6;
  color:var(--ink);
  margin-bottom:16px;
  box-sizing:border-box;
  text-align:center;
  letter-spacing:.2em;
}
.login-box input[type=password]:focus{outline:none;border-color:var(--seal-red);box-shadow:0 0 0 3px rgba(176,58,46,.1)}
.login-box .btn{width:100%}
.error-msg{
  color:var(--seal-red);
  font-size:13px;
  margin-bottom:14px;
  background:rgba(176,58,46,.08);
  padding:9px;
  border-radius:3px;
  border:1px solid rgba(176,58,46,.2);
}

/* ═══════════ summary ═══════════ */
.summary-page{max-width:760px;margin:0 auto;padding:30px 18px 80px}
.summary-head{text-align:center;margin:22px 0 34px}
.summary-head h1{
  font-family:var(--font-serif);
  font-size:32px;
  letter-spacing:.12em;
  margin:0;
}
.summary-list{display:flex;flex-direction:column;gap:16px}
.summary-card{
  background:var(--paper-dark);
  border:1px solid rgba(63,50,38,.12);
  border-radius:4px;
  box-shadow:var(--shadow-card);
  padding:22px 24px;
  position:relative;
}
.summary-card h3{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-size:19px;
  margin:0 0 10px;
}
.period-badge{
  display:inline-block;
  padding:3px 12px;
  border-radius:2px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.1em;
  font-family:var(--font-type);
}
.period-badge.week{background:rgba(58,95,138,.1);color:var(--work)}
.period-badge.month{background:rgba(47,111,79,.1);color:var(--life)}
.period-badge.quarter{background:rgba(176,58,46,.1);color:var(--seal-red)}
.period-badge.year{background:rgba(122,74,124,.1);color:var(--reflect)}
.summary-card .meta{
  font-family:var(--font-type);
  font-size:11px;
  color:var(--ink-faint);
  margin-bottom:12px;
  letter-spacing:.04em;
}
.summary-card .preview{
  font-family:var(--font-body);
  font-size:14px;
  color:var(--ink-soft);
  line-height:1.8;
}
.summary-card .read-more{
  display:inline-block;
  margin-top:12px;
  color:var(--seal-red);
  font-family:var(--font-serif);
  font-size:13px;
  border-bottom:1px dashed rgba(176,58,46,.4);
}
.empty-state{text-align:center;padding:70px 20px;color:var(--ink-faint)}
.empty-state h3{font-size:20px;color:var(--ink);margin:0 0 8px}

/* 响应式 */
@media (max-width:560px){
  .top-bar{padding:10px 14px}
  .entry-card{flex-wrap:wrap}
  .entry-preview{flex-basis:100%;order:3;white-space:normal}
  .read-content{padding:22px 18px}
  .list-heading h1{font-size:30px}
}