/*
 * Shared stylesheet for all pcap tools pages.
 *
 * Follows the utel-frontend design: dark theme, utel color tokens, Inter /
 * Dazzed / Roboto Mono fonts, top bar with a sidebar, "widget" cards and
 * pill shaped buttons and inputs.
 */

/* ---------- Fonts ---------- */

@font-face { font-family: "Inter"; font-weight: 400; font-display: swap; src: url("/static/fonts/inter-v12-latin-regular.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 500; font-display: swap; src: url("/static/fonts/inter-v12-latin-500.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 600; font-display: swap; src: url("/static/fonts/inter-v12-latin-600.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 700; font-display: swap; src: url("/static/fonts/inter-v12-latin-700.woff2") format("woff2"); }
@font-face { font-family: "Dazzed-Medium"; font-display: swap; src: url("/static/fonts/Dazzed-Medium.otf") format("opentype"); }
@font-face { font-family: "Roboto-mono"; font-display: swap; src: url("/static/fonts/RobotoMono-Regular.ttf") format("truetype"); }

/* ---------- Tokens (from utel-frontend variables.scss) ---------- */

:root {
  color-scheme: dark;

  --utel-body-background: #191c1c;
  --utel-navigation-background: #1f2f2e;
  --utel-navigation-background-darken: #15201f;
  --utel-text-color: #fff;
  --utel-scrollbar-color: #696969;
  --utel-icon-label-text-color: #a7a7a7;
  --utel-icon-color: #d2d2d2;
  --utel-p-text-color: #d3d3d3;
  --utel-title-text-color: #d8d8d8;
  --utel-title-link-color: #a7a7a7;
  --utel-navigation-darker-text-color: #e6e6e6;
  --utel-content-background: #242828;
  --utel-content-darker-background: #1c1f1f;
  --utel-content-text-color: #d8d8d8;
  --utel-highlight-text-color: #9ed7aa;
  --utel-content-border-color: #707070ac;
  --utel-modal-border-color: #303434;
  --utel-solid-button-color: #6da478;
  --utel-solid-button-color-darker: #5d9568;
  --utel-widget-button-color: #3c4343;
  --utel-widget-button-color-darker: #434b4b;
  --utel-widget-title-border: #1c1f1f;
  --utel-widget-border: #323737;
  --utel-content-hover-color: #393d3d;
  --utel-fraud-color-yellow: #e4b266;
  --utel-fraud-color-red: #ea6f80;
  --utel-table-color: #2d3232;
  --utel-table-split-color: #242828;
  --utel-table-header-text-color: #9a9a9a;
  --utel-severity-color-low: #6daa9c;
  --utel-input-border-color: #3b4040;

  --top-bar-height: 55px;
  --sidebar-width: 220px;
  --font-body: "Inter", system-ui, sans-serif;
  --font-heading: "Dazzed-Medium", "Inter", sans-serif;
  --font-mono: "Roboto-mono", ui-monospace, Menlo, Consolas, monospace;
}

/* ---------- Base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--utel-body-background);
  color: var(--utel-text-color);
  font: 400 15px/1.5 var(--font-body);
  scrollbar-color: var(--utel-scrollbar-color) transparent;
  scrollbar-width: thin;
}

::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: transparent; border-radius: 80px; }
::-webkit-scrollbar-thumb { background-color: var(--utel-scrollbar-color); border-radius: 80px; }

h1, h2, h3 { font-family: var(--font-heading); font-weight: normal; margin: 0; }
h1 { font-size: 20px; }
h2 { font-size: 16px; }
h3 { font-size: 15px; color: var(--utel-title-text-color); margin: 16px 0 8px; }

p { color: var(--utel-p-text-color); }
a { color: var(--utel-highlight-text-color); }
code, pre { font-family: var(--font-mono); font-size: 13px; }

.hint { color: var(--utel-icon-label-text-color); font-weight: 400; font-size: 13px; }
.note { color: var(--utel-icon-label-text-color); font-size: 14px; margin: 6px 0; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Top bar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  height: var(--top-bar-height);
  background: var(--utel-navigation-background);
  border-bottom: 1px solid var(--utel-body-background);
}

.burger {
  display: grid;
  place-items: center;
  width: var(--top-bar-height);
  height: var(--top-bar-height);
  flex: none;
  background: var(--utel-navigation-background-darken);
  cursor: pointer;
}
.burger svg { width: 19px; fill: var(--utel-text-color); }
.nav-toggle:focus-visible + .topbar .burger { outline: 2px solid var(--utel-solid-button-color); outline-offset: -2px; }

.app-title {
  margin-left: 15px;
  font: 16px/var(--top-bar-height) var(--font-heading);
  color: var(--utel-text-color);
  text-decoration: none;
}

.logo-symbol {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
}
.logo-symbol svg { width: 40px; height: 40px; fill: var(--utel-text-color); }

/* ---------- Sidebar ---------- */

.sidebar {
  position: fixed;
  top: var(--top-bar-height);
  left: 0;
  z-index: 10;
  width: var(--sidebar-width);
  height: calc(100% - var(--top-bar-height));
  overflow-y: auto;
  background: var(--utel-navigation-background-darken);
  transition: transform 0.15s ease;
}

.nav-section {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 8px 15px;
  color: var(--utel-icon-label-text-color);
  font-size: 11px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 15px;
  color: var(--utel-text-color);
  font-weight: 500;
  font-size: 15px;
  text-decoration: none;
}
.nav-item:hover, .nav-item.active { background: var(--utel-navigation-background); }
.nav-item.active { color: var(--utel-highlight-text-color); }
.nav-item::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--utel-solid-button-color);
  flex: none;
}

/*
 * The burger toggles the sidebar using a checkbox, so no JavaScript is needed.
 * Wide screens show the sidebar by default and the burger hides it; narrow
 * screens hide it by default and the burger shows it over the content.
 */
.content { margin-left: var(--sidebar-width); padding: 10px; transition: margin-left 0.15s ease; }
.nav-toggle:checked ~ .sidebar { transform: translateX(-100%); }
.nav-toggle:checked ~ .content { margin-left: 0; }

@media (max-width: 64rem) {
  .sidebar { transform: translateX(-100%); box-shadow: 4px 0 12px rgb(0 0 0 / 0.35); }
  .nav-toggle:checked ~ .sidebar { transform: none; }
  .content { margin-left: 0; }
  .logo-symbol { display: none; }
}

/* ---------- Page toolbar ---------- */

.toolbar {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0 20px;
  margin: 0 5px 10px;
  font-size: 16px;
}
.breadcrumb { color: var(--utel-navigation-darker-text-color); }
.toolbar-link { color: var(--utel-title-link-color); text-decoration: none; }
.toolbar-link:hover { color: var(--utel-title-text-color); border-bottom: 1px solid var(--utel-title-text-color); }
.title-separator { margin: 0 5px 0 7px; color: var(--utel-title-link-color); }
.toolbar-title { color: var(--utel-title-text-color); }
.toolbar-info { color: var(--utel-icon-label-text-color); font-size: 14px; }

/* ---------- Widgets ---------- */

.widget {
  margin: 5px 5px 10px;
  background: var(--utel-content-background);
  border-radius: 5px;
}
.widget-title {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 38px;
  border-bottom: 1px solid var(--utel-widget-title-border);
}
.widget-title h2 { padding: 8px 0 8px 10px; color: var(--utel-title-text-color); }
.widget-title .hint { margin-left: auto; padding-right: 10px; }
.widget-content { padding: 10px; border-top: 1px solid var(--utel-widget-border); }
.widget-content > :first-child { margin-top: 0; }
.widget-content > :last-child { margin-bottom: 0; }

.widget-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.tool-card { display: flex; flex-direction: column; text-decoration: none; color: inherit; transition: background 0.1s; }
.tool-card:hover { background: var(--utel-content-hover-color); }
.tool-card .widget-content { flex: 1; color: var(--utel-p-text-color); font-size: 14px; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 35px;
  padding: 6px 16px;
  border: 0;
  border-radius: 80px;
  font: 700 15px var(--font-body);
  color: var(--utel-text-color);
  background: var(--utel-widget-button-color);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { background: var(--utel-widget-button-color-darker); }
.btn:focus-visible { outline: 2px solid var(--utel-highlight-text-color); outline-offset: 2px; }
.btn.primary { background: var(--utel-solid-button-color); }
.btn.primary:hover { background: var(--utel-solid-button-color-darker); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 15px; }

/* ---------- Forms ---------- */

label, .label {
  display: block;
  margin: 12px 0 4px;
  color: var(--utel-content-text-color);
  font-size: 14px;
  font-weight: 500;
}

input, select, textarea {
  font: 400 14px var(--font-body);
  color: var(--utel-content-text-color);
}

/* Single line inputs and selects: utel pill style */
input:not([type=checkbox], [type=radio], [type=file]), select {
  width: 100%;
  height: 32px;
  padding: 0 15px;
  background: var(--utel-content-background);
  border: 1px solid var(--utel-input-border-color);
  border-radius: 64px;
}
select {
  appearance: none;
  padding-right: 36px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23a7a7a7' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 12px 8px;
  text-overflow: ellipsis;
}
select option { background: var(--utel-content-background); }

/* Multi-line hex input: same border, darker field, rounded rectangle */
textarea {
  display: block;
  width: 100%;
  padding: 8px 12px;
  background: var(--utel-content-darker-background);
  border: 1px solid var(--utel-input-border-color);
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 13px;
  resize: vertical;
}

::placeholder { color: var(--utel-icon-label-text-color); opacity: 1; }

input:focus, select:focus, textarea:focus { outline: none; border-color: var(--utel-solid-button-color); }

/* Checkbox and radio: 18px box with the utel green when checked */
input[type=checkbox], input[type=radio] {
  appearance: none;
  flex: none;
  width: 18px;
  height: 18px;
  margin: 0;
  border: 1px solid var(--utel-content-border-color);
  border-radius: 3px;
  background: transparent;
  display: grid;
  place-items: center;
  cursor: pointer;
}
input[type=radio] { border-radius: 50%; }
input[type=checkbox]:checked, input[type=radio]:checked {
  background: var(--utel-solid-button-color);
  border-color: var(--utel-solid-button-color);
}
input[type=checkbox]:checked::after {
  content: "";
  width: 10px;
  height: 6px;
  margin-top: -3px;
  border: solid var(--utel-text-color);
  border-width: 0 0 2px 2px;
  transform: rotate(-45deg);
}
input[type=radio]:checked::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--utel-text-color);
}
input[type=checkbox]:focus-visible, input[type=radio]:focus-visible { outline: 2px solid var(--utel-highlight-text-color); outline-offset: 2px; }

label.check {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-weight: 400;
  font-size: 15px;
}

/* File input: the button looks like a secondary utel button */
input[type=file] {
  width: 100%;
  padding: 4px;
  border: 1px dashed var(--utel-input-border-color);
  border-radius: 5px;
  color: var(--utel-icon-label-text-color);
}
input[type=file]::file-selector-button {
  height: 30px;
  margin-right: 12px;
  padding: 0 14px;
  border: 0;
  border-radius: 80px;
  font: 700 14px var(--font-body);
  color: var(--utel-text-color);
  background: var(--utel-widget-button-color);
  cursor: pointer;
}
input[type=file]::file-selector-button:hover { background: var(--utel-widget-button-color-darker); }

fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
legend { padding: 0; margin: 12px 0 4px; font-size: 14px; font-weight: 500; color: var(--utel-content-text-color); }

/* Three controls on one line: link type, custom link type, file name */
.row { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 0 12px; align-items: start; }
.row label { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.field-hint { display: block; margin: 4px 0 0 15px; }
@media (max-width: 720px) { .row { grid-template-columns: 1fr; } }

/* Split modes: radio with inline number input and unit */
.modes label.check { margin: 8px 0; }
.modes input.num { width: 8rem; }
.modes select.unit { width: 5.5rem; }

/* ---------- Messages ---------- */

.error {
  margin: 0 5px 10px;
  padding: 10px 15px;
  border: 1px solid var(--utel-fraud-color-red);
  border-left-width: 4px;
  border-radius: 5px;
  background: rgb(234 111 128 / 0.1);
  color: var(--utel-text-color);
}

/* ---------- Tables (utel table-theme) ---------- */

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  padding: 0 10px 5px 5px;
  text-align: left;
  font-weight: 400;
  white-space: nowrap;
  color: var(--utel-table-header-text-color);
}
td {
  padding: 5px 10px 5px 5px;
  font-weight: 500;
  background: var(--utel-table-color);
  border-top: 1px solid var(--utel-table-split-color);
}
tr.changed td:last-child { color: var(--utel-highlight-text-color); }

/* ---------- hex2pcap result ---------- */

.summary { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0; font-size: 14px; }
.summary dt { color: var(--utel-icon-label-text-color); }
.summary dd { margin: 0; }

.dump {
  margin: 0;
  padding: 10px 12px;
  overflow-x: auto;
  background: var(--utel-content-darker-background);
  border-radius: 5px;
  color: var(--utel-p-text-color);
  line-height: 1.6;
}
.dump .off { color: var(--utel-table-header-text-color); }
.l2 { color: var(--utel-fraud-color-yellow); }
.l3 { color: var(--utel-severity-color-low); }
.l7 { color: var(--utel-p-text-color); }
.chg { text-decoration: underline; text-underline-offset: 3px; color: var(--utel-highlight-text-color); font-weight: 700; }

/* A hint under a checkbox lines up with the checkbox's text */
label.check + .field-hint { margin: 2px 0 0 26px; }