/* ===================================================================
   undo.sh -- terminal command line dev
   Dracula-inspired terminal multiplexer aesthetic
   =================================================================== */

:root {
    --bg:        #282A36;
    --line:     #44475A;
    --fg:        #F8F8F2;
    --comment:   #6272A4;
    --green:     #50FA7B;
    --red:       #FF5555;
    --orange:    #FFB86C;
    --purple:    #BD93F9;
    --cyan:      #8BE9FD;
    --yellow:    #F1FA8C;
    --border:    #3A3A3A;

    --font-cmd:  "Fira Code", "JetBrains Mono", ui-monospace, Menlo, monospace;
    --font-body: "JetBrains Mono", "Fira Code", ui-monospace, Menlo, monospace;
    --font-err:  "Red Hat Mono", "JetBrains Mono", ui-monospace, Menlo, monospace;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: #1B1C24;
    color: var(--fg);
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.6;
    overflow: hidden;
}

body {
    display: flex;
    flex-direction: column;
}

/* -------------------------------------------------------------------
   Boot screen overlay
   ------------------------------------------------------------------- */
.boot-screen {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 999;
    padding: 40px 48px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--green);
    font-family: var(--font-body);
    font-size: 14px;
    transition: opacity 600ms ease-out;
}

.boot-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.boot-line {
    white-space: pre;
    color: var(--green);
    min-height: 1.6em;
}

.boot-line .meta { color: var(--comment); }
.boot-line .ok   { color: var(--green); }
.boot-line .warn { color: var(--orange); }
.boot-line .info { color: var(--cyan); }
.boot-line .accent { color: var(--purple); }

.boot-cursor {
    margin-top: 6px;
}

.cursor-block {
    display: inline-block;
    color: var(--green);
    animation: blink 600ms steps(1, end) infinite;
}

@keyframes blink {
    0%, 49%   { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* -------------------------------------------------------------------
   tmux container
   ------------------------------------------------------------------- */
.tmux {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    border: 1px solid var(--border);
    margin: 8px;
    overflow: hidden;
    opacity: 0;
    transition: opacity 400ms ease-out;
}

.tmux.visible { opacity: 1; }

/* Title bar */
.tmux-titlebar {
    flex: 0 0 auto;
    height: 28px;
    background: #1F2029;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 16px;
    font-size: 12px;
    color: var(--comment);
}

.window-controls {
    display: flex;
    gap: 8px;
}

.dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border);
}

.dot-red    { background: #FF5F57; }
.dot-yellow { background: #FEBC2E; }
.dot-green  { background: #28C840; }

.title-text {
    flex: 1 1 auto;
    text-align: center;
    color: var(--fg);
    font-family: var(--font-body);
    letter-spacing: 0.02em;
}

.title-meta {
    color: var(--comment);
    font-family: var(--font-body);
}

.title-meta .status-indicator {
    color: var(--green);
    margin-right: 6px;
}

/* Body region: sidebar + main */
.tmux-body {
    flex: 1 1 auto;
    display: flex;
    overflow: hidden;
    min-height: 0;
}

/* -------------------------------------------------------------------
   Pane chrome
   ------------------------------------------------------------------- */
.pane {
    display: flex;
    flex-direction: column;
    min-height: 0;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 400ms ease-out, transform 400ms ease-out;
}

.pane.visible {
    opacity: 1;
    transform: translateY(0);
}

.pane-header {
    flex: 0 0 auto;
    height: 24px;
    background: #21222C;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 10px;
    gap: 12px;
    font-size: 11px;
    color: var(--comment);
}

.pane-title {
    color: var(--purple);
    font-family: var(--font-cmd);
    letter-spacing: 0.02em;
}

.pane-process {
    color: var(--green);
}

.pane-pid {
    margin-left: auto;
    color: var(--comment);
}

.pane-body {
    flex: 1 1 auto;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 14px 18px;
    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
}

.pane-body::-webkit-scrollbar {
    width: 8px;
}

.pane-body::-webkit-scrollbar-track {
    background: transparent;
}

.pane-body::-webkit-scrollbar-thumb {
    background: var(--line);
}

/* Sidebar pane */
.pane-sidebar {
    flex: 0 0 280px;
    border-right: 1px solid var(--border);
    background: #25262F;
}

@media (max-width: 900px) {
    .pane-sidebar { flex: 0 0 220px; }
}

@media (max-width: 700px) {
    .tmux-body { flex-direction: column; }
    .pane-sidebar { flex: 0 0 auto; border-right: 0; border-bottom: 1px solid var(--border); max-height: 30vh; }
}

.filetree {
    margin: 0 0 14px 0;
    font-family: var(--font-body);
    font-size: 12.5px;
    line-height: 1.55;
    color: var(--fg);
    white-space: pre;
}

.filetree .kw   { color: var(--purple); }
.filetree .cyan { color: var(--cyan); }
.filetree .path { color: var(--fg); }

.filetree-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 14px;
    border-top: 1px dashed var(--border);
    padding-top: 10px;
}

.nav-row {
    cursor: pointer;
    color: var(--fg);
    font-size: 12.5px;
    padding: 2px 4px;
    transition: background 120ms ease-out;
    border-left: 2px solid transparent;
}

.nav-row .ar { color: var(--green); margin-right: 4px; }
.nav-row .cyan { color: var(--cyan); }

.nav-row:hover {
    background: var(--line);
    border-left-color: var(--green);
}

.nav-row.active {
    background: var(--line);
    border-left-color: var(--purple);
    color: var(--purple);
}

.nav-row.active .cyan { color: var(--purple); }

.sidebar-help {
    border-top: 1px dashed var(--border);
    padding-top: 10px;
    font-size: 12.5px;
    color: var(--fg);
    line-height: 1.7;
}

.sidebar-help .comment { color: var(--comment); margin-bottom: 4px; display: block; }
.sidebar-help .orange { color: var(--orange); }
.sidebar-help .fg { color: var(--fg); }

/* Main pane */
.pane-main {
    flex: 1 1 auto;
    background: var(--bg);
}

#terminal {
    font-family: var(--font-body);
    color: var(--fg);
}

/* -------------------------------------------------------------------
   ASCII banner
   ------------------------------------------------------------------- */
.banner {
    color: var(--green);
    font-family: var(--font-cmd);
    font-size: 14px;
    line-height: 1.1;
    margin: 0 0 8px 0;
    white-space: pre;
    letter-spacing: 0;
    text-shadow: 0 0 6px rgba(80, 250, 123, 0.18);
}

.banner-meta {
    margin-bottom: 24px;
    color: var(--comment);
    font-family: var(--font-body);
    font-size: 13px;
}

.ascii-art {
    white-space: pre;
    font-family: var(--font-cmd);
    color: var(--green);
    font-size: 13px;
    line-height: 1.1;
    margin: 0 0 12px 0;
}

.ascii-art.small {
    font-size: 12px;
    color: var(--purple);
    text-shadow: 0 0 4px rgba(189, 147, 249, 0.18);
}

/* -------------------------------------------------------------------
   Sections / prompt lines / output
   ------------------------------------------------------------------- */
.section {
    margin-bottom: 28px;
    padding-bottom: 14px;
    border-bottom: 1px dashed var(--border);
}

.section:last-of-type {
    border-bottom: 0;
}

.prompt-line {
    display: flex;
    align-items: baseline;
    gap: 6px;
    flex-wrap: wrap;
    font-family: var(--font-cmd);
    font-size: 16px;
    margin-bottom: 10px;
    color: var(--fg);
    letter-spacing: 0.01em;
}

.prompt-user  { color: var(--green); font-weight: 500; }
.prompt-path  { color: var(--cyan); }
.prompt-line .green { color: var(--green); margin-right: 4px; }
.prompt-line .fg    { color: var(--fg); }

.cmd {
    color: var(--fg);
    font-family: var(--font-cmd);
    font-weight: 500;
    font-size: 16px;
    white-space: pre-wrap;
    word-break: break-word;
}

.cursor {
    display: inline-block;
    color: var(--green);
    margin-left: 2px;
    animation: blink 600ms steps(1, end) infinite;
    opacity: 0;
    font-size: 14px;
    vertical-align: baseline;
    line-height: 1;
}

.cursor.active {
    opacity: 1;
}

.output {
    margin: 4px 0 0 14px;
    padding: 4px 0 8px 12px;
    border-left: 1px solid var(--border);
    color: var(--fg);
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.65;
    opacity: 0;
    transform: translateY(-2px);
    transition: opacity 280ms ease-out, transform 280ms ease-out;
}

.output.visible {
    opacity: 1;
    transform: translateY(0);
}

.output p {
    margin: 0 0 6px 0;
}

.output .comment {
    color: var(--comment);
    font-style: italic;
}

.output .green   { color: var(--green); }
.output .red     { color: var(--red); font-family: var(--font-err); font-weight: 500; }
.output .orange  { color: var(--orange); }
.output .purple  { color: var(--purple); }
.output .cyan    { color: var(--cyan); }
.output .yellow  { color: var(--yellow); }
.output .fg      { color: var(--fg); }
.output .path    { color: var(--cyan); }
.output .cmd-static { color: var(--fg); font-family: var(--font-cmd); font-weight: 500; }

.kv {
    margin: 0 0 4px 0;
    color: var(--fg);
    font-family: var(--font-body);
}

.kv .orange { margin-right: 8px; }

ul.cmdlist,
ul.changelist,
ul.contactlist {
    list-style: none;
    margin: 0 0 8px 0;
    padding: 0;
}

ul.cmdlist li,
ul.changelist li,
ul.contactlist li {
    margin: 0 0 4px 0;
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.55;
}

ul.cmdlist .green {
    margin-right: 6px;
    font-weight: 600;
}

/* -------------------------------------------------------------------
   Manual page block
   ------------------------------------------------------------------- */
pre.manual {
    background: #21222C;
    border: 1px solid var(--border);
    border-left: 2px solid var(--purple);
    padding: 14px 18px;
    margin: 4px 0;
    color: var(--fg);
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 1.55;
    white-space: pre;
    overflow-x: auto;
}

pre.manual.demo {
    border-left-color: var(--green);
}

/* -------------------------------------------------------------------
   Progress bars
   ------------------------------------------------------------------- */
.progress-block {
    background: #21222C;
    border: 1px solid var(--border);
    border-left: 2px solid var(--orange);
    padding: 10px 14px;
    margin: 10px 0 0 0;
    font-family: var(--font-body);
    font-size: 13px;
}

.progress-block .comment {
    color: var(--comment);
    margin-bottom: 6px;
    display: block;
}

.progress-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 2px 0;
    color: var(--fg);
}

.progress-row .path {
    color: var(--cyan);
    width: 84px;
    display: inline-block;
}

.progress-row .green {
    color: var(--green);
    min-width: 44px;
    text-align: right;
}

.progress {
    flex: 1 1 auto;
    height: 12px;
    background: #1B1C24;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.progress .bar {
    display: block;
    height: 100%;
    width: 0%;
    background: repeating-linear-gradient(
        90deg,
        var(--green) 0,
        var(--green) 6px,
        #45D169 6px,
        #45D169 8px
    );
    transition: width 1200ms cubic-bezier(0.2, 0.8, 0.4, 1);
}

/* -------------------------------------------------------------------
   Live prompt at bottom
   ------------------------------------------------------------------- */
.prompt-line.live {
    margin-top: 10px;
    margin-bottom: 60px;
}

.cursor-live {
    opacity: 1;
}

/* -------------------------------------------------------------------
   Status bar (footer)
   ------------------------------------------------------------------- */
.tmux-statusbar {
    flex: 0 0 auto;
    height: 24px;
    background: var(--purple);
    color: #1B1C24;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 16px;
    font-family: var(--font-body);
    font-size: 12px;
    opacity: 0;
    transition: opacity 400ms ease-out;
}

.tmux-statusbar.visible {
    opacity: 1;
}

.status-left,
.status-center,
.status-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.status-center {
    flex: 1 1 auto;
    justify-content: center;
}

.status-tag {
    background: #1B1C24;
    color: var(--green);
    padding: 1px 8px;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.status-host {
    color: #1B1C24;
}

.status-section,
.status-progress {
    color: #1B1C24;
}

.status-section .purple,
.status-progress .green {
    color: #1B1C24;
    font-weight: 600;
}

.status-clock {
    background: #1B1C24;
    color: var(--cyan);
    padding: 1px 8px;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.status-pane {
    color: #1B1C24;
}

/* -------------------------------------------------------------------
   Token-flash animation for syntax highlighting reveal
   ------------------------------------------------------------------- */
@keyframes token-flash {
    0%   { color: var(--fg); }
    100% { color: var(--token-color, var(--fg)); }
}

.flash-purple { --token-color: var(--purple); animation: token-flash 200ms ease-out forwards; }
.flash-green  { --token-color: var(--green);  animation: token-flash 200ms ease-out forwards; }
.flash-cyan   { --token-color: var(--cyan);   animation: token-flash 200ms ease-out forwards; }
.flash-yellow { --token-color: var(--yellow); animation: token-flash 200ms ease-out forwards; }
.flash-orange { --token-color: var(--orange); animation: token-flash 200ms ease-out forwards; }

/* -------------------------------------------------------------------
   Selection
   ------------------------------------------------------------------- */
::selection {
    background: var(--line);
    color: var(--fg);
}