1 * {
2     box-sizing: border-box;
3 }
4 
5 body {
6     margin: 0;
7     padding: 0;
8     border: 0;
9     font: 14px sans-serif;
10 }
11 
12 header.mail-header {
13     background-color: #ced7e0;
14     padding: 5px 10px;
15     margin: 10px 0;
16 }
17 
18 header.mail-header img {
19     vertical-align: middle;
20 }
21 
22 header dl {
23     display: flex;
24     flex-wrap: wrap;
25     margin: 0;
26 }
27 
28 header dt {
29     width: 64px;
30 }
31 
32 header dd {
33     margin-left: auto;
34     width: calc(100% - 64px);
35     flex-grow: 2;
36 }
37 
38 header dt, header dd {
39     padding: 3px 0;
40 }
41 
42 header.index-header {
43     text-align: center;
44 }
45 
46 h1 {
47     font-weight: normal;
48     font-size: 1.8rem;
49     margin: 0 0 1rem 0;
50 }
51 
52 summary {
53     cursor: pointer;
54     user-select: none;
55 }
56 
57 form {
58     text-align: center;
59 }
60 
61 input {
62     max-width: 180px;
63 }
64 
65 .notice {
66     padding: 1rem;
67 }
68 
69 main {
70     padding: 5px;
71 }
72 
73 pre {
74     font-family: monospace;
75     padding: 5px;
76     white-space: pre-wrap;
77 }
78 
79 hr {
80     display: none;
81 }
82 
83 .thread {
84     margin: 1rem 0;
85 }
86 
87 .thread > p {
88     padding: 0 1rem;
89 }
90 
91 .thread p {
92     margin: 0;
93 }
94 
95 .thread a {
96     text-decoration: none;
97 }
98 
99 .thread a:hover {
100     text-decoration: underline;
101 }
102 
103 .thread ul {
104     padding-left: 1rem;
105     list-style: none;
106 }
107 
108 .thread ul   { border-left: 1px dashed #cacaca; }
109 .thread > ul { border-left: 0px; }
110 
111 .mail {
112     padding: 0.5rem 5px;
113 }
114 
115 .mail:target {
116     background-color: khaki;
117 }
118 
119 .mail .mail-meta {
120     font-size: 13px;
121 }
122 
123 .mail.reply .subject {
124     overflow: hidden;
125     text-overflow: ellipsis;
126     white-space: pre;
127 }
128 
129 nav {
130     margin: 1rem;
131     text-align: center;
132 }
133 
134 nav a, nav span {
135     display: inline-block;
136     margin: 0 .7rem;
137 }
138 
139 footer {
140     margin-top: 70px;
141     border-top: 1px solid #333;
142 }
143 
144 footer > p {
145     text-align: center;
146 }
147 
148 footer ul {
149     padding: 0;
150     text-align: center;
151 }
152 
153 footer li {
154     display: inline-block;
155     padding: 8px;
156 }
157 
158 
159 /* dark theme */
160 @media (prefers-color-scheme: dark) {
161     body {
162         color: #eeeff1;
163         background-color: #1e1f21;
164     }
165 
166     a {
167         color: #bad7ff;
168     }
169 
170     header.mail-header {
171         background-color: #390039;
172     }
173 
174     .mail:target {
175         background-color: #574f03;
176     }
177 
178     footer {
179         border-color: #ffffea;
180     }
181 }