/* Font Definitions */
@font-face {
  font-family: Chicago;
  src: url("fonts/ChicagoFLF.woff") format("woff"),
       url("fonts/ChicagoFLF.woff2") format("woff2");
}
@font-face {
  font-family: Chicago_12;
  src: url("fonts/ChiKareGo2.woff") format("woff"),
       url("fonts/ChiKareGo2.woff2") format("woff2");
}
@font-face {
  font-family: Geneva_9;
  src: url("fonts/FindersKeepers.woff") format("woff"),
       url("fonts/FindersKeepers.woff2") format("woff2");
}
@font-face {
  font-family: Monaco;
  src: url("fonts/monaco.woff") format("woff"),
       url("fonts/monaco.woff2") format("woff2");
}

/* CSS Variables */
:root {
  --box-shadow: 2px 2px;
  --element-spacing: 8px;
  --grouped-element-spacing: 6px;
  --radio-width: 12px;
  --checkbox-width: 13px;
  --radio-label-spacing: 6px;
  --radio-total-width-precalc: calc(var(--radio-width) + var(--radio-label-spacing));
  --radio-total-width: calc(var(--radio-total-width-precalc));
  --radio-left: calc(-1 * var(--radio-total-width-precalc));
  --radio-dot-width: 6px;
  --radio-dot-top: calc(var(--radio-width) / 2 - var(--radio-dot-width) / 2);
  --radio-dot-left: calc(-1 * var(--radio-total-width-precalc) + var(--radio-width) / 2 - var(--radio-dot-width) / 2);
  --checkbox-total-width-precalc: calc(var(--checkbox-width) + var(--radio-label-spacing));
  --checkbox-total-width: calc(var(--checkbox-total-width-precalc));
  --checkbox-left: calc(-1 * var(--checkbox-total-width-precalc));
  --checkmark-width: 12px;
  --checkmark-top: 2px;
  --checkmark-left: 2px;
  --sys-color-white: #FFFFFF;
  --sys-color-black: #000000;
  --sys-color-grey: #A5A5A5;
  --sys-color-darkgrey: #B6B7B8;
  --primary: var(--sys-color-white);
  --secondary: var(--sys-color-black);
  --tertiary: var(--sys-color-grey);
  --disabled: var(--sys-color-darkgrey);
}

/* Body */
body {
  background: var(--sys-color-black);
  margin: 0;
  min-height: 100vh;
  font-family: "Inconsolata", Menlo, Chicago, Geneva;
  font-size: 18px;
  letter-spacing: -0.025em;
  overflow: hidden;
}

/* Boot Screen */
.boot-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  background: linear-gradient(90deg, var(--primary) 21px, transparent 1%) center,
              linear-gradient(var(--primary) 21px, transparent 1%) center,
              var(--secondary);
  background-size: 22px 22px;
  background-attachment: fixed;
  z-index: 2000;
}
.boot-icon {
  width: 64px;
  height: 64px;
  cursor: pointer;
  filter: drop-shadow(0 0 8px rgba(147, 112, 219, 0.5));
  transition: filter 0.3s ease;
}
.boot-icon:hover {
  filter: drop-shadow(0 0 12px rgba(147, 112, 219, 0.8));
}
.boot-icon-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, calc(-50% + 15px));
  margin-top: 0;
  font-family: Chicago_12;
  font-size: 12px;
  color: var(--secondary);
  text-align: center;
}
.boot-icon-label .question-mark {
  display: inline-block;
  font-size: 24px;
  animation: blink 1s infinite;
}
@keyframes blink {
  0% { opacity: 1; }
  50% { opacity: 0; }
  100% { opacity: 1; }
}

/* Desktop (Hidden Initially) */
.desktop-container {
  display: none;
  background: linear-gradient(90deg, var(--primary) 21px, transparent 1%) center,
              linear-gradient(var(--primary) 21px, transparent 1%) center,
              var(--secondary);
  background-size: 22px 22px;
  background-attachment: fixed;
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}
.desktop-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(147, 112, 219, 0.1), rgba(0, 191, 255, 0.1), rgba(147, 112, 219, 0.1));
  background-size: 200% 200%;
  animation: gradientShift 15s ease infinite;
  z-index: 0;
  pointer-events: none;
}
.desktop-container > * {
  position: relative;
  z-index: 1;
}
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Desktop Menu Bar */
.desktop-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--primary);
  border-bottom: 0.1rem solid var(--secondary);
  z-index: 1000;
}
.desktop-menu .menu-icon {
  width: 16px;
  height: 16px;
  vertical-align: middle;
  margin-right: 5px;
}

/* Desktop Icons */
.desktop {
  position: fixed;
  top: 2rem;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  z-index: 1;
}
.desktop-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 64px;
  margin: 1rem;
  cursor: pointer;
  font-family: Chicago_12;
  font-size: 12px;
  color: var(--secondary);
  text-align: center;
}
.desktop-icon img {
  width: 32px;
  height: 32px;
  margin-bottom: 4px;
  border: 1px solid var(--secondary);
  background: var(--primary);
}
.desktop-icon:hover {
  background: var(--secondary);
  color: var(--primary);
}

/* Boot Dialog */
.boot-dialog {
  position: absolute;
  width: 600px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--primary);
  z-index: 2001;
  display: none;
  border: 0.1em solid var(--secondary);
  box-shadow: var(--box-shadow);
  max-height: 80vh;
  overflow-y: auto;
}
.boot-dialog .title-bar {
  display: flex;
  align-items: center;
  height: 1.5rem;
  margin: 0.1rem 0;
  padding: 0.2rem 0.1rem;
  background: linear-gradient(var(--secondary) 50%, transparent 50%);
  background-size: 6.6666666667% 13.3333333333%;
  background-clip: content-box;
  border-bottom: 0.1rem solid var(--secondary);
  position: relative;
}
.boot-dialog .title-bar .title {
  padding: 0 0.5em;
  margin: 0 auto;
  font-size: 1.5rem;
  font-weight: bold;
  line-height: 1.1;
  text-align: center;
  background: var(--primary);
  cursor: default;
  font-family: Chicago_12;
}
.boot-text {
  white-space: pre-wrap;
  line-height: 1.2em;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  display: none;
  text-align: left;
  color: var(--tertiary);
  font-family: Monaco, monospace;
  font-size: 22px;
  max-height: 300px;
  overflow: auto;
  padding: 1rem 2rem;
}
.boot-text .ok { color: #0f0; }
.boot-text .fail { color: #f00; }
.progress-section {
  text-align: left;
  color: var(--tertiary);
  font-family: Monaco, monospace;
  font-size: 14px;
  margin-top: 2px;
  padding: 0 2rem 1rem 2rem;
}
#progressHeader, #status {
  color: #0FF;
  font-family: Monaco, monospace;
  font-size: 24px;
  font-weight: bold;
}
#progressBar {
  color: #FFC107;
  font-family: Monaco, monospace;
  font-size: 22px;
}

/* General Scrollbar (for elements other than boot-text, window-pane, and message-area) */
::-webkit-scrollbar {
  width: 22px;
  background-color: var(--primary);
}
::-webkit-scrollbar-track {
  background: linear-gradient(45deg, var(--secondary) 25%, transparent 25%, transparent 75%, var(--secondary) 75%),
              linear-gradient(45deg, var(--secondary) 25%, transparent 25%, transparent 75%, var(--secondary) 75%);
  background-color: var(--primary);
  background-size: 4px 4px;
  background-position: 0 0, 2px 2px;
  width: 10px;
  border-left: 3px solid var(--secondary);
}
::-webkit-scrollbar-thumb {
  width: 20px;
  box-sizing: content-box;
  background-color: var(--primary);
  border: 2px solid var(--secondary);
  border-right: none;
}
::-webkit-scrollbar-button:vertical:decrement:start,
::-webkit-scrollbar-button:vertical:increment:end {
  display: none;
}
::-webkit-scrollbar-button:vertical:decrement:end,
::-webkit-scrollbar-button:vertical:increment:start {
  display: none;
}

/* Shared Scrollbar Styles for boot-text, window-pane, and message-area */
.boot-text::-webkit-scrollbar,
.window-pane::-webkit-scrollbar,
.message-area::-webkit-scrollbar {
  width: 22px;
  background-color: var(--primary);
}
.boot-text::-webkit-scrollbar-track,
.window-pane::-webkit-scrollbar-track,
.message-area::-webkit-scrollbar-track {
  background: linear-gradient(45deg, var(--secondary) 25%, transparent 25%, transparent 75%, var(--secondary) 75%),
              linear-gradient(45deg, var(--secondary) 25%, transparent 25%, transparent 75%, var(--secondary) 75%);
  background-color: var(--primary);
  background-size: 4px 4px;
  background-position: 0 0, 2px 2px;
  width: 10px;
  border-left: 3px solid var(--secondary);
}
.window-pane::-webkit-scrollbar-track {
  border-left: 4px solid var(--secondary);
}
.boot-text::-webkit-scrollbar-thumb,
.window-pane::-webkit-scrollbar-thumb,
.message-area::-webkit-scrollbar-thumb {
  width: 20px;
  box-sizing: content-box;
  background-color: var(--primary);
  border: 2px solid var(--secondary);
  border-right: none;
}
.boot-text::-webkit-scrollbar-button:vertical:decrement:end,
.window-pane::-webkit-scrollbar-button:vertical:decrement:end,
.message-area::-webkit-scrollbar-button:vertical:decrement:end {
  background: url("icon/scrollbar-up.svg") no-repeat center center;
  background-size: 16px 16px;
  height: 22px;
  display: block;
}
.boot-text::-webkit-scrollbar-button:vertical:decrement:end:active,
.window-pane::-webkit-scrollbar-button:vertical:decrement:end:active,
.message-area::-webkit-scrollbar-button:vertical:decrement:end:active {
  background: url("icon/scrollbar-up-active.svg") no-repeat center center;
  background-size: 16px 16px;
}
.boot-text::-webkit-scrollbar-button:vertical:increment:start,
.window-pane::-webkit-scrollbar-button:vertical:increment:start,
.message-area::-webkit-scrollbar-button:vertical:increment:start {
  background: url("icon/scrollbar-down.svg") no-repeat center center;
  background-size: 16px 16px;
  height: 22px;
  display: block;
}
.boot-text::-webkit-scrollbar-button:vertical:increment:start:active,
.window-pane::-webkit-scrollbar-button:vertical:increment:start:active,
.message-area::-webkit-scrollbar-button:vertical:increment:start:active {
  background: url("icon/scrollbar-down-active.svg") no-repeat center center;
  background-size: 16px 16px;
}
.boot-text::-webkit-scrollbar-button:vertical:decrement:start,
.boot-text::-webkit-scrollbar-button:vertical:increment:end,
.window-pane::-webkit-scrollbar-button:vertical:decrement:start,
.window-pane::-webkit-scrollbar-button:vertical:increment:end,
.message-area::-webkit-scrollbar-button:vertical:decrement:start,
.message-area::-webkit-scrollbar-button:vertical:increment:end {
  display: none;
}

/* Window */
.window {
  flex-direction: column;
  position: absolute;
  min-width: 320px;
  min-height: 200px;
  background-color: var(--primary);
  border: 0.1em solid var(--secondary);
  font-family: "Inconsolata", Menlo, Chicago, Geneva;
  box-shadow: var(--box-shadow), 0 0 10px rgba(147, 112, 219, 0.3);
  z-index: 100;
  display: none;
  resize: both;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.window-pane {
  box-sizing: border-box;
  padding: 8px;          /* ← margin so content never hugs the chrome */
  width: 100%;
  height: calc(100% - 22px);
  overflow: auto;        /* native scrollbars live here */
  background: var(--primary);
}
.window.draggable {
  cursor: move;
}
/*────────────────  System-6 scrollbars for .window-pane  ───────────────*/

/* 1 ▸ base colours for Firefox + Chromium “overlay” scrollbars */
.window-pane {
  /* (these two lines also apply to Firefox) */
  scrollbar-width: thin;                                     /* firefox */
  scrollbar-color: var(--secondary) var(--primary);          /* firefox */
}

/* 2 ▸ WebKit scrollbar track (vertical + horizontal) */
.window-pane::-webkit-scrollbar {
  width: 14px;                /* v-bar */
  height: 14px;               /* h-bar */
  background: var(--primary); /* light track */
}

/* 3 ▸ draggable thumb */
.window-pane::-webkit-scrollbar-thumb {
  background: var(--secondary);            /* mid-grey thumb */
  border: 2px solid var(--primary);        /* inset border for 3-D effect */
  border-radius: 1px;
}

/* 4 ▸ arrow buttons (use the icons already in core/icon/) */
.window-pane::-webkit-scrollbar-button:vertical:start {
  background: url("core/icon/scrollbar-up.svg") center no-repeat;
  height: 14px;
}
.window-pane::-webkit-scrollbar-button:vertical:end {
  background: url("core/icon/scrollbar-down.svg") center no-repeat;
  height: 14px;
}
.window-pane::-webkit-scrollbar-button:horizontal:start {
  background: url("core/icon/scrollbar-left.svg") center no-repeat;
  width: 14px;
}
.window-pane::-webkit-scrollbar-button:horizontal:end {
  background: url("core/icon/scrollbar-right.svg") center no-repeat;
  width: 14px;
}

/* optional: hide the blank “increment/decrement” gaps some browsers add */
.window-pane::-webkit-scrollbar-button:vertical:single-button:increment,
.window-pane::-webkit-scrollbar-button:vertical:single-button:decrement,
.window-pane::-webkit-scrollbar-button:horizontal:single-button:increment,
.window-pane::-webkit-scrollbar-button:horizontal:single-button:decrement {
  display: block;   /* ensure arrow buttons always visible */
}

/* Modem Dialog */
.modal-dialog {
  position: absolute;
  width: 400px;
  background: var(--primary);
  z-index: 200;
  display: none;
  border: 0.1em solid var(--secondary);
  box-shadow: var(--box-shadow), 0 0 10px rgba(147, 112, 219, 0.3);
  resize: both;
}
.modal-dialog .title-bar {
  border-bottom: 0.1rem solid var(--secondary);
}

/* Title Bar */
.title-bar {
  display: flex;
  align-items: center;
  height: 1.5rem;
  margin: 0.1rem 0;
  padding: 0.2rem 0.1rem;
  background: linear-gradient(var(--secondary) 50%, transparent 50%);
  background-size: 6.6666666667% 13.3333333333%;
  background-clip: content-box;
  border-bottom: 0.1rem solid var(--secondary);
  position: relative;
}
.title-bar .title {
  padding: 0 0.5em;
  margin: 0 auto;
  font-size: 1.5rem;
  font-weight: bold;
  line-height: 1.1;
  text-align: center;
  background: var(--primary);
  cursor: default;
  font-family: Chicago_12;
}
.title-bar button {
  position: relative;
  display: block;
  width: 16px;
  height: 16px;
  margin: 0 0.3rem;
  border: 1px solid var(--secondary);
  background-color: var(--primary);
  cursor: pointer;
  z-index: 2;
}
.title-bar button.close::before, .title-bar button.close::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 2px;
  background: var(--secondary);
  transform-origin: center;
}
.title-bar button.close::before {
  transform: translate(-50%, -50%) rotate(45deg);
}
.title-bar button.close::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}
.title-bar button.close:active {
  background-color: var(--secondary);
}
.title-bar button.close:active::before, .title-bar button.close:active::after {
  background: var(--primary);
}
.title-bar button.resize {
  background: linear-gradient(var(--secondary) 0%, var(--secondary) 100%) 60% 40%,
              linear-gradient(to bottom, var(--secondary) 0%, var(--secondary) 100%) 40% 60%;
  background-size: 50% 2px, 2px 50%;
  background-repeat: no-repeat;
  background-color: var(--primary);
}
.title-bar button.resize:active {
  background-color: var(--secondary);
  background: linear-gradient(var(--primary) 0%, var(--primary) 100%) 60% 40%,
              linear-gradient(to bottom, var(--primary) 0%, var(--primary) 100%) 40% 60%;
  background-size: 50% 2px, 2px 50%;
  background-repeat: no-repeat;
}
.title-bar button.resize:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.title-bar button.close:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Separator */
.separator {
  flex: none;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  border-top: 0.1rem solid var(--secondary);
  border-width: 0.1rem 0;
}

/* Window Pane */
.window-pane {
  overflow-y: auto;
  padding: 1rem 2rem;
  font-size: 18px;
  letter-spacing: -0.025em;
  flex: 1;
}

/* Message Area */
.message-area {
  height: 300px;
  overflow-y: auto;
  font-family: Monaco, monospace;
  white-space: pre-wrap;
  line-height: 1.2;
  flex: 1;
}

/* Buttons */
.btn, .btn-default {
  min-height: 20px;
  min-width: 59px;
  padding: 0 20px;
  background: var(--primary);
  border-style: solid;
  border-width: 5.5px;
  border-image: url("icon/button.svg") 30 stretch;
  color: var(--secondary);
  text-align: center;
  text-decoration: none;
  font-size: 18px;
  font-family: Chicago_12;
  cursor: pointer;
}
.btn:active {
  background: var(--secondary);
  border-radius: 6px;
  color: var(--primary);
}
.btn:disabled {
  color: var(--disabled);
}
.btn-default {
  border-image: url("icon/button-default.svg") 60 stretch;
  border-width: 0.5em;
}
.btn-default:active {
  border-radius: 12px;
}

/* Input */
input[type="text"] {
  border: 1.5px solid var(--secondary);
  font-family: Chicago_12;
  font-size: 18px;
  padding-left: 5px;
  width: 100%;
  box-sizing: border-box;
}
input[type="text"]:focus-visible {
  background: var(--secondary);
  color: var(--primary);
  outline: none;
}

/* Menu Bar */
ul[role="menu-bar"] {
  display: flex;
  background: var(--primary);
  margin: 0;
  padding: 0;
  list-style: none;
  cursor: pointer;
  font-family: Chicago_12;
  font-size: 1em;
  border-bottom: 0.1rem solid var(--secondary);
}
ul[role="menu-bar"] > [role="menu-item"] {
  position: relative;
  padding: 6px 10px;
}
ul[role="menu-bar"] > [role="menu-item"]:hover,
ul[role="menu-bar"] > [role="menu-item"]:focus {
  background: var(--secondary);
  color: var(--primary);
  outline: none;
}
ul[role="menu"] {
  display: none;
  position: absolute;
  min-width: 200px;
  background: var(--primary);
  color: var(--secondary);
  border: 1px solid var(--secondary);
  box-shadow: var(--box-shadow);
  padding: 0;
  margin: 0;
  z-index: 100;
  list-style: none;
}
ul[role="menu"]::before {
  content: "";
  pointer-events: none;
  position: absolute;
  left: 28px;
  width: 2px;
  box-shadow: inset 1px 0 rgba(0, 0, 0, 0.15), inset -1px 0 var(--primary);
}
ul[role="menu"] > [role="menu-item"] > a {
  all: unset;
  position: relative;
  padding: 5px 20px;
  display: block;
  width: 100%;
  box-sizing: border-box;
}
ul[role="menu"] > [role="menu-item"] > a:hover,
ul[role="menu"] > [role="menu-item"] > a:focus {
  background: var(--secondary);
  color: var(--primary) !important;
}
ul[role="menu-item"].divider::after {
  content: "";
  pointer-events: none;
  display: block;
  padding: 0;
  border-top: 1.5px dotted var(--secondary);
}

/* Field Row */
.field-row {
  display: flex;
  align-items: center;
  font-family: Chicago_12;
  font-size: 1em;
}
.field-row > * + * {
  margin-left: var(--grouped-element-spacing);
}
.field-row.stacked {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

/* BBS-Specific Styles */
#modem-sequence .window-pane {
  color: #00FF00;
  font-family: Monaco, monospace;
  white-space: pre-wrap;
  height: 200px;
  text-align: center;
  font-size:24px;
}
.message-area {
  height: 300px;
  overflow-y: auto;
  font-family: Monaco, monospace;
  white-space: pre-wrap;
  line-height: 1.2;
  flex: 1;
}
.banner-container {
  display: flex;
  justify-content: center;
  margin: 10px 0;
  font-family: Monaco, monospace;
  white-space: pre;
  overflow-x: auto;
  font-size: 12px;
}
.welcome-box {
  text-align: center;
  margin: 20px auto;
}
.welcome-box-inner {
  display: inline-block;
  padding: 10px;
  background: var(--primary);
  border: 2px solid var(--secondary);
  font-family: Monaco, monospace;
  font-size: 14px;
  line-height: 1.3;
}

/* Chat Input Section */
.chat-input-section {
  padding: 0.5rem 2rem;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Responsive Adjustments */
@media (max-width: 600px) {
  .banner-container {
    font-size: 10px;
  }
  .window, .modal-dialog, .boot-dialog {
    margin: 0.5rem;
    min-width: 280px;
    max-width: 100%;
  }
  .desktop-icon {
    width: 48px;
    font-size: 10px;
  }
  .desktop-icon img {
    width: 24px;
    height: 24px;
  }
  .boot-icon {
    width: 48px;
    height: 48px;
  }
  .boot-icon-label {
    font-size: 10px;
  }
  .boot-icon-label .question-mark {
    font-size: 20px;
  }
  .boot-text, #progressBar, #modem-sequence .window-pane {
    font-size: 18px;
  }
  .progress-section {
    font-size: 12px;
  }
}

/* CRT Flicker Animation */
@keyframes crt-flicker {
  0% { opacity: 0.9; }
  100% { opacity: 1; }
}
.message-area, .boot-text, .progress-section {
  animation: crt-flicker 0.1s infinite alternate;
}