/* Web fonts (SIL Open Font License), served from this site. Files are the
   Google Fonts latin and latin-ext subsets; the browser loads only the subsets
   the page uses. */
@font-face {
  font-family: 'Roboto';
  font-weight: 400;
  font-display: block;
  src: url("../fonts/roboto-latin.f9788110cacc.woff2") format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Roboto';
  font-weight: 400;
  font-display: block;
  src: url("../fonts/roboto-latin-ext.cd41687d9718.woff2") format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Aldrich';
  font-weight: 400;
  font-display: block;
  src: url("../fonts/aldrich-latin.a7bb3cc8ab44.woff2") format('woff2');
}

/* Bootstrap 5 dark theme, tuned to the colors of the original Bootstrap 3
   build: background #222, text #ccc, links and primary #428bca, 2px radius. */
:root {
  font-size: 14px;
}

[data-bs-theme="dark"] {
  --bs-body-bg: #222;
  --bs-body-bg-rgb: 34, 34, 34;
  --bs-body-color: #ccc;
  --bs-body-color-rgb: 204, 204, 204;
  --bs-body-line-height: 1.42857143;
  --bs-secondary-color: #777;
  --bs-link-color: #428bca;
  --bs-link-color-rgb: 66, 139, 202;
  --bs-link-hover-color: #2a6496;
  --bs-link-hover-color-rgb: 42, 100, 150;
  --bs-primary: #428bca;
  --bs-primary-rgb: 66, 139, 202;
  --bs-border-radius: 2px;
  --bs-border-radius-sm: 2px;
  --bs-border-radius-lg: 2px;
  --bs-code-color: #ddd;
}

.btn-primary {
  --bs-btn-bg: #428bca;
  --bs-btn-border-color: #357ebd;
  --bs-btn-hover-bg: #3071a9;
  --bs-btn-hover-border-color: #285e8e;
  --bs-btn-active-bg: #3071a9;
  --bs-btn-active-border-color: #285e8e;
  --bs-btn-disabled-bg: #428bca;
  --bs-btn-disabled-border-color: #357ebd;
}

/* Bootstrap 3 heading sizes and margins; the layout depends on them. */
h1 { font-size: 36px; }
h2 { font-size: 30px; }
h3 { font-size: 24px; }
h4 { font-size: 18px; }
h1, h2, h3 { margin-top: 20px; margin-bottom: 10px; }
h4, h5, h6 { margin-top: 10px; margin-bottom: 10px; }

/* Bootstrap 3 links: underline on hover only. */
a { text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }

hr {
  margin: 20px 0;
  border-top: 1px solid #666;
  opacity: 1;
}

code {
  padding: 1px 4px;
  font-size: 85%;
  background-color: #3e3e3e;
  border-radius: 0;
}

.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--bs-body-color);
  --bs-table-striped-bg: #313131;
  --bs-table-striped-color: var(--bs-body-color);
  --bs-table-hover-color: var(--bs-body-color);
  --bs-table-border-color: #161616;
}

/* ---------------------------------------------------------------------
   Bootstrap 3 sizes and colors that Bootstrap 5 changed. Measured on the
   Bootstrap 3 version so the pages keep their layout.
   --------------------------------------------------------------------- */

/* Container widths 750 / 970 / 1170 px and 30 px gutters. */
.container { max-width: none; }
@media (min-width: 768px)  { .container { max-width: 750px; } }
@media (min-width: 992px)  { .container { max-width: 970px; } }
@media (min-width: 1200px) { .container { max-width: 1170px; } }
.container, .container-fluid, .row { --bs-gutter-x: 30px; }

/* Navbar: 50 px high, gray links that turn white on hover. */
#top-nav.navbar { padding-top: 0; padding-bottom: 0; min-height: 50px; }
#top-nav .navbar-brand { color: #9d9d9d; font-size: 18px; line-height: 20px; padding: 15px 0; }
#top-nav .nav-link, #top-nav #timer { color: #9d9d9d; }
#top-nav #timer { display: inline-block; padding: 15px 0; line-height: 20px; }
#top-nav .navbar-brand:hover, #top-nav .nav-link:hover, #top-nav .nav-link:focus { color: #fff; }
@media (min-width: 768px) {
  #top-nav .navbar-nav .nav-link { padding: 15px; }
}

/* Modal 600 px wide, 15 px padding. */
.modal { --bs-modal-width: 600px; --bs-modal-padding: 15px; --bs-modal-header-padding: 15px; }

/* btn-xs (removed in Bootstrap 4). */
.btn-xs {
  --bs-btn-padding-y: 1px;
  --bs-btn-padding-x: 5px;
  --bs-btn-font-size: 12px;
  --bs-btn-line-height: 1.5;
}

/* Table cells: 8 px (5 px for .table-sm), 2 px line under the header. */
.table > :not(caption) > * > * { padding: 8px; }
.table-sm > :not(caption) > * > * { padding: 5px; }
.table > thead > tr > th { border-bottom-width: 2px; }

/* Light form controls on the dark page, as in Bootstrap 3. */
.form-control, .form-select {
  background-color: #fff;
  color: #555;
  border-color: #ccc;
}
.form-control:focus, .form-select:focus {
  background-color: #fff;
  color: #555;
  border-color: #66afe9;
}
.form-control::placeholder { color: #999; }
label { font-weight: 700; }

.text-warning { color: #8a6d3b !important; }

/* Bootstrap 3 text rhythm: 10 px after blocks, tighter headings. */
p, ul, ol, dl { margin-bottom: 10px; }
h1, h2, h3, h4, h5, h6 { line-height: 1.1; }

/* Bootstrap 3 columns are positioned, so absolute children stay inside. */
[class*="col-"] { position: relative; }
/* Bootstrap 5 pads only columns inside .row; Bootstrap 3 padded all. */
.container > [class*="col-"] { padding-left: 15px; padding-right: 15px; }

/* Tables sit on a slightly lighter panel. */
.table { background-color: #2a2a2a; margin-bottom: 20px; }

/* Link-styled buttons look like links. */
.btn-link { text-decoration: none; }
.btn-link:hover, .btn-link:focus { text-decoration: underline; }

/* Read-only fields, e.g. the team name on the profile form. */
.form-control:disabled, .form-control[readonly] {
  background-color: #eee;
  color: #777;
}

/* Logout is a form button that looks like the other navbar links. */
#navlogout { background: none; border: 0; }

/* Navbar items stay on one line; a long team name ends with "…". */
#top-nav .nav-link,
#top-nav .navbar-text { white-space: nowrap; }
@media (min-width: 768px) {
  #top-nav .nav-team {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}
@media (min-width: 1200px) {
  #top-nav .nav-team { max-width: 240px; }
}

/* Mobile menu button: 3 white bars in a dark frame. */
#top-nav .navbar-toggler {
  padding: 9px 10px;
  border-color: #333;
  border-radius: 2px;
}
#top-nav .navbar-toggler:focus { box-shadow: none; }
#top-nav .navbar-toggler-icon {
  width: 22px;
  height: 14px;
  background-size: 22px 14px;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 14'%3e%3cpath stroke='%23fff' stroke-width='2' d='M0 1h22M0 7h22M0 13h22'/%3e%3c/svg%3e");
}

/* Home page sponsors: logos of the same height in one tidy row. */
.sponsor-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 32px;
  min-height: 80px;
  padding: 10px 0 10px 15px;
}
.sponsor-logos img {
  display: block;
  height: 60px;
  width: auto;
  max-width: 100%;
}
.sponsor-logos img.logo-wide { height: 36px; }

/* Light alerts, as in Bootstrap 3. */
.alert { padding: 15px; margin-bottom: 20px; }
.alert > p:last-child, .alert > ul:last-child { margin-bottom: 0; }
.alert-info    { --bs-alert-bg: #d9edf7; --bs-alert-color: #31708f; --bs-alert-border-color: #bce8f1; --bs-alert-link-color: #245269; }
.alert-success { --bs-alert-bg: #dff0d8; --bs-alert-color: #3c763d; --bs-alert-border-color: #d6e9c6; --bs-alert-link-color: #2b542c; }
.alert-warning { --bs-alert-bg: #fcf8e3; --bs-alert-color: #8a6d3b; --bs-alert-border-color: #faebcc; --bs-alert-link-color: #66512c; }
.alert-danger  { --bs-alert-bg: #f2dede; --bs-alert-color: #a94442; --bs-alert-border-color: #ebccd1; --bs-alert-link-color: #843534; }


body {
  font-family: 'Roboto', '微軟正黑體', 'Microsoft JhengHei', sans-serif;
  padding-top: 50px;
  padding-bottom: 20px;
  /* Sticky footer: #main takes the free height, so the footer stays at the
     bottom of the screen on short pages. */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* <html> paints #222 (base.html). A body background would cover
     #home-bg, which has z-index -1. */
  background-color: transparent;
}
#main { flex: 1 0 auto; }

/* Pages that load their data with fetch (dashboard, scoreboard) stay hidden
   until the first data arrives, then fade in at once. */
#content { transition: opacity 0.1s ease-out; }
#content[data-loading] { opacity: 0; }

@media (prefers-reduced-motion: reduce) {
  #content { transition: none; }
}

h1,
h2,
h3,
h4,
.navbar-brand,
.award-content,
.award-note {
  font-family: 'Aldrich', '微軟正黑體', sans-serif!important;
  text-shadow: 3px 3px #111;
}

#top-nav {
  background-color: #222;
  border-bottom: 2px solid #444;
}

#home-bg {
  position: absolute;
  width: 100%;
  height: 400px;
  z-index: -1;
  background-color: #111;
}

@media (max-width: 668px) {
  #home-bg {
    height: 500px;
  }
}


/* The home page content moves up onto the masthead background. */
#home-masthead + #content { transform: translate(0, -120px); }

#home-masthead {
  padding: 100px 0;
  margin-bottom: 20px;
  box-shadow: 0 5px 15px black;
  font-family: 'Aldrich', sans-serif;
}

#home-masthead .title {
  font-size: 5em;
}

#home-masthead .subtitle {
  font-size: 1.5em;
  padding-left: 5px;
}

#home-masthead .title, 
#home-masthead .subtitle {
  text-shadow: 0px 0px 7px #444, 0px 0px 7px #444, 0px 0px 5px #444;
}

#contest-info {
  line-height: 1.6em;
}

#content {
  padding-top: 30px;
  padding-bottom: 20px;
}

#footer {
  text-align: center;
}

/* dashboard-challenges */

#dashboard-challenges {
  margin-right: -13px;
}

#dashboard-challenges ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#dashboard-challenges li {
  display: block;
}

#challenge-list {
  width: 100%;
}

#challenge-list .solved > .challenge-info {
  opacity: .3;
}

.flag-list .solved {
  background-color:#3c763d !important;
}

.flag-list .other-solved{
	background: #a56000!important;
}

.challenge-entry {
  width: 32%;
  height: 150px;
  margin: 0.5%;
  float: left;
  background-color: #282828;
  box-shadow: inset 0 0 10px #3a3a3a;
  cursor: pointer;
  position:relative;
}

@media (max-width: 768px) {
  .challenge-entry {
    width: 48%;
  }
}

.challenge-entry:hover {
  box-shadow: 0 0 10px #111;
}

.challenge-info {
  float: left;
  width: 100%;
  height: 150px;
  padding: 8px 10px;
  text-align: center;
}

.challenge-info .title {
  display: table;
  height: 100%;
  width: 100%;
  font-size: 1.3em;
}

.challenge-info .title p {
  display: table-cell;
  vertical-align: middle;
  max-width: 145px;
  word-wrap: break-word;
}

.challenge-info .title p .tags {
  font-size: 0.8em;
}

.flag-list {
  position: absolute;
  right: 0;
  z-index: 10;
  max-height:100px;
}

.flag-list li {
  background-color: #555;
  margin: 5px 0;
  padding: 3px 8px;
}

.flag-list li:first-child {
  margin-top: 10px;
}

.modal-title {
  font-size: 1.2em;
}

.modal-dialog {
  padding-top: 5%;
}

/* Faster modal open and close (Bootstrap: slide 0.3s, fade 0.15s). */
.modal.fade .modal-dialog { transition-duration: 0.15s; }
.modal.fade,
.modal-backdrop.fade { transition-duration: 0.1s; }

.modal-content {
  position: relative;
  background-color: #252525;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 2px;
}

/* Block layout, without the !important of d-block: x-show must be able to
   hide the hints when a challenge has none. */
.modal-header.modal-hint { display: block; }

.modal-header, .modal-footer {
  border-color: #111;
}

/* Bootstrap 3 modal footer: block layout, right-aligned (Bootstrap 5 uses flex). */
#challenge-modal .modal-footer {
  display: block;
  text-align: right;
  padding: 15px;
}
/* Bootstrap 5 adds a margin to every footer child; Bootstrap 3 did not. */
#challenge-modal .modal-footer > * { margin: 0; }

#challenge-description {
  margin-bottom: 50px;
}

#challenge-solved_times {
  margin-top: 5px;
}

#submit-status {
  margin-top: 8px;
  text-align: left;
}


/* dashboard-scoreboard */

#mini-scoreboard {
  width: 100%;
  table-layout: fixed;
}

/* One line per team: a long name ends with "…", the score stays right. */
#mini-scoreboard li {
  display: flex;
  gap: 12px;
  padding: 0 5px;
  font-size: 1.15em;
}

#mini-scoreboard .team-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#mini-scoreboard .team-score {
  flex: none;
  font-variant-numeric: tabular-nums;
}

#mini-scoreboard .self {
  background: #494949;
}

/* dashboard-announcements */

#dashboard-announcements {
  overflow-y: scroll;
  height: 150px;
  margin-bottom: 40px;
  background-color: #282828;
  box-shadow: inset 0 0 10px #3a3a3a;
  border-radius: 3px;
  padding: 15px 0;
}

/* scoreboard */

#scoreboard {
  table-layout: fixed;
  padding: 10px 10px 5px
}

#scoreboard .solved {
  background-color: #555 !important;
}

/* The first team to solve a challenge. */
#scoreboard .solved.first-blood {
  background-color: #8a6d3b !important;
}

#scoreboard .team-url, 
#scoreboard .team-url:hover, 
#scoreboard .team-url:active, 
#scoreboard .team-url:visited {
  color: #CCC;
}

#scoreboard .show-on-hover {
  position: relative;
  white-space: nowrap;
}

#scoreboard .show-on-hover div {
  position: absolute;
  display: none;
}

#scoreboard .show-on-hover:hover div {
  display: block;
  z-index: 10;
}

/* Center the flag icon over its column of solved cells. */
#scoreboard th.flag, #scoreboard td.chal-cell { text-align: center; }
#scoreboard .show-on-hover.flag div { left: 50%; transform: translateX(-50%); text-align: center; }

#scoreboard .show-on-hover.flag div {
  top: -2.8em;
}

#scoreboard .show-on-hover.flag div p {
  font-size: 0.8em;
}


#challenge-solved-team .table {
  background-color: #252525; 
  margin-bottom: 0;
}

#challenge-solved-team .table a, 
#challenge-solved-team .table a:hover, 
#challenge-solved-team .table a:active, 
#challenge-solved-team .table a:visited {
  color: #CCC;
  text-decoration: underline;
}

pre {
  background-color: #161616;
	padding: 0;
	color: #CCC;
	border: 0;
	border-radius: 0;
}


.score-table-simple tbody > tr {
  cursor: pointer!important;
}

.form-text {
  margin-bottom: 0;
  color: #777;
}

#awards-final {
  border-radius: 10px;
  background-color: rgba(0, 0, 0, 0.6);
  box-shadow: 0 0 15px #111;
  /* 15px, not 30px: the Bootstrap 5 container is 30px narrower than the
     Bootstrap 3 one, and "+ Pre-qualification for DEF CON" must fit on the
     first line of the 1st place note, as in 2024. */
  padding: 0 15px 10px 15px;
  margin-bottom: 30px;
}

#awards-final .award {
  margin: 10px;
  display: inline-block;
}

#awards-final .award-title {
  font-size: 20px;
  margin-bottom: 10px;
}

#awards-final .award-content {
  font-size: 25px;
  margin-bottom: 5px;
}

#flag_submit_button {
  transition-duration: 0.3s;
  transition-timing-function: cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* Keep the heading margin inside the dark awards box. */
#awards-final { display: flow-root; }

/* Below xl the home sections stack in one column. Use block layout so the
   margins between sections collapse, as in Bootstrap 3. */
@media (max-width: 1199.98px) {
  #contest-info.row { display: block; }
}

/* Smaller logos on phones, so a pair of logos fits on one line. */
@media (max-width: 575.98px) {
  .sponsor-logos { gap: 16px 20px; padding-left: 0; }
  .sponsor-logos img { height: 40px; }
  .sponsor-logos img.logo-wide { height: 28px; }
}

/* Narrower table cells on phones, so 5-column tables fit the screen. */
@media (max-width: 575.98px) {
  .table > :not(caption) > * > * { padding-left: 5px; padding-right: 5px; }
}

/* Long links (e.g. the Discord URL) wrap on narrow phones. */
#home-masthead a { overflow-wrap: anywhere; }
/* table-responsive wraps the table; keep the table's own bottom margin. */
.table-responsive { margin-bottom: 20px; }
.table-responsive > .table { margin-bottom: 0; }

/* Messages after a form (django.contrib.messages), above the page.
   460px wide inside the 15px gutters, the same as the form panel. */
.site-messages { max-width: 490px; padding-top: 20px; }
.site-messages .alert { margin-bottom: 0; }
.site-messages .alert + .alert { margin-top: 10px; }

/* Team forms (login, register, password, profile): one centered panel. */
.form-panel {
  max-width: 460px;
  margin: 10px auto 0;
  padding: 30px;
  background-color: #2a2a2a;
  border: 1px solid #333;
  border-radius: 4px;
  box-shadow: 0 0 15px #111;
}
.form-panel-wide { max-width: 560px; }
.form-panel h4 {
  margin: 0 0 8px;
  font-size: 22px;
  letter-spacing: 2px;
}
.form-panel-note {
  margin-bottom: 24px;
  color: #888;
  font-size: 13px;
  line-height: 1.5;
}
.form-panel .mb-3 { margin-bottom: 18px !important; }
.form-panel .form-label {
  margin-bottom: 6px;
  color: #bbb;
  font-size: 13px;
  font-weight: 500;
}
.form-panel .asteriskField { margin-left: 2px; color: #428bca; }
.form-panel .form-control,
.form-panel .form-select {
  height: 40px;
  padding: 8px 12px;
  background-color: #1b1b1b;
  color: #ddd;
  border: 1px solid #3a3a3a;
  border-radius: 3px;
}
.form-panel .form-control:focus,
.form-panel .form-select:focus {
  background-color: #1b1b1b;
  color: #fff;
  border-color: #428bca;
  box-shadow: 0 0 0 3px rgba(66, 139, 202, 0.25);
}
.form-panel .form-control.is-invalid { border-color: #a94442; }
.form-panel .form-control[readonly] { background-color: #262626; color: #888; }
.form-panel .form-text { margin-top: 6px; color: #777; font-size: 12px; }
.form-panel .alert { padding: 10px 12px; font-size: 13px; }
.form-panel .alert ul { padding-left: 0; list-style: none; }
.form-panel .btn-submit {
  width: 100%;
  height: 42px;
  margin-top: 6px;
  font-family: 'Aldrich', sans-serif;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.form-panel-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  margin-top: 18px;
  font-size: 13px;
}
.form-panel-alt {
  margin: 18px 0 0;
  color: #888;
  text-align: center;
}
@media (max-width: 480px) {
  .form-panel { padding: 20px; }
}

/* Select boxes are clickable. */
.form-select { cursor: pointer; }

/* Country picker (country-select.js): a dropdown in the form-panel theme. */
.cselect { position: relative; }
.cselect-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
}
.cselect-toggle[aria-expanded="true"] {
  border-color: #428bca !important;
  box-shadow: 0 0 0 3px rgba(66, 139, 202, 0.25);
}
.cselect-placeholder { color: #777; }
/* Same look before country-select.js replaces the <select>. */
.form-panel select[data-country-select]:has(option[value=""]:checked) { color: #777; }
.cselect-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 8px;
  background-color: #1b1b1b;
  border: 1px solid #3a3a3a;
  border-radius: 3px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
}
.form-panel .cselect-search { height: 34px; margin-bottom: 6px; }
.cselect-list {
  max-height: 260px;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  list-style: none;
  overscroll-behavior: contain;
}
.cselect-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: 2px;
  color: #ccc;
  cursor: pointer;
}
.cselect-list li.active { background-color: rgba(66, 139, 202, 0.2); color: #fff; }
.cselect-list li[aria-selected="true"] { color: #6aa9e0; }
.cselect-list li[aria-selected="true"]::after { content: "✓"; margin-left: auto; }
.cselect-list .flag-sprite,
.cselect-toggle .flag-sprite,
.cselect-noflag { flex: none; width: 16px; height: 11px; }
.cselect-noflag { border: 1px dashed #555; }
.cselect-empty { padding: 7px 10px; color: #777; }