/* ============================================================
   undo.sh -- terminal-in-browser stylesheet
   Palette: Dracula-inspired terminal darks
   ============================================================ */

:root {
    --bg-terminal:   #0c0c0c;
    --bg-titlebar:   #1e1e1e;
    --bg-pane:       #1a1a2e;
    --bg-selection:  #44475a;
    --fg-text:       #d4d4d4;
    --fg-prompt:     #50fa7b;
    --fg-string:     #f1fa8c;
    --fg-error:      #ff5555;
    --fg-comment:    #6272a4;
    --border:        #44475a;

    --font-mono:     'Fira Code', 'Source Code Pro', ui-monospace, Menlo, Consolas, monospace;
    --font-prompt:   'Source Code Pro', 'Fira Code', ui-monospace, Menlo, Consolas, monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    min-height: 100vh;
    background: #050507;
    color: var(--fg-text);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    line-height: 1.6;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    /* subtle CRT-like vignette/scanlines */
    background:
        radial-gradient(ellipse at center, rgba(80, 250, 123, 0.04) 0%, transparent 70%),
        repeating-linear-gradient(
            to bottom,
            rgba(255, 255, 255, 0.012) 0px,
            rgba(255, 255, 255, 0.012) 1px,
            transparent 1px,
            transparent 3px
        ),
        #050507;
    padding: 1.25rem;
    overflow-x: hidden;
}

::selection {
    background: var(--bg-selection);
    color: #fff;
}

/* ============================================================
   Terminal window chrome
   ============================================================ */

.terminal-window {
    max-width: 1180px;
    margin: 0 auto;
    background: var(--bg-terminal);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.65),
        0 4px 18px rgba(80, 250, 123, 0.06),
        inset 0 0 0 1px rgba(255, 255, 255, 0.02);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 2.5rem);
}

.title-bar {
    height: 28px;
    background: var(--bg-titlebar);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 0.75rem;
    user-select: none;
    flex-shrink: 0;
}

.dots {
    display: flex;
    gap: 8px;
    align-items: center;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    border: 1px solid rgba(0, 0, 0, 0.3);
}

.dot-red    { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green  { background: #28c840; }

.title-text {
    flex: 1;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: #a8a8b0;
    letter-spacing: 0.02em;
}

.title-meta {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--fg-comment);
}

/* ============================================================
   Terminal body grid
   ============================================================ */

.terminal-body {
    display: grid;
    grid-template-columns: 180px 1fr;
    flex: 1;
    min-height: 0;
}

/* ============================================================
   Sidebar (tmux-style pane)
   ============================================================ */

.sidebar {
    background: #08080c;
    border-right: 1px solid var(--border);
    padding: 0.75rem 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: 0.875rem;
}

.sidebar-header {
    color: var(--fg-comment);
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    text-transform: lowercase;
    letter-spacing: 0.04em;
    border-bottom: 1px dashed var(--border);
    padding-bottom: 0.5rem;
}

.tab-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.tab {
    display: grid;
    grid-template-columns: 14px 1fr auto;
    align-items: center;
    gap: 6px;
    padding: 0.35rem 0.5rem;
    cursor: pointer;
    color: var(--fg-text);
    border-left: 2px solid transparent;
    transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

.tab:hover {
    background: rgba(80, 250, 123, 0.06);
    color: var(--fg-prompt);
}

.tab.active {
    background: var(--bg-selection);
    color: var(--fg-prompt);
    border-left-color: var(--fg-prompt);
}

.tab-marker {
    color: var(--fg-prompt);
    opacity: 0;
    transition: opacity 0.12s ease;
    font-family: var(--font-prompt);
}

.tab.active .tab-marker,
.tab:hover .tab-marker {
    opacity: 1;
}

.tab-name {
    text-transform: lowercase;
}

.tab-count {
    color: var(--fg-comment);
    font-size: 0.7rem;
    background: rgba(98, 114, 164, 0.15);
    padding: 1px 6px;
    border-radius: 2px;
}

.tab.active .tab-count {
    color: var(--fg-string);
    background: rgba(241, 250, 140, 0.1);
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 0.5rem;
    border-top: 1px dashed var(--border);
    font-size: 0.7rem;
    color: var(--fg-comment);
    line-height: 1.4;
}

.footer-line {
    padding: 1px 0.5rem;
}

/* ============================================================
   Main pane
   ============================================================ */

.main-pane {
    padding: 1.25rem 1.75rem 2rem;
    overflow-y: auto;
    min-width: 0;
}

/* ASCII banner */
.banner {
    margin-bottom: 1.25rem;
}

.ascii-banner {
    color: var(--fg-prompt);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.15;
    white-space: pre;
    text-shadow: 0 0 12px rgba(80, 250, 123, 0.35);
    overflow-x: auto;
}

.banner-meta {
    margin-top: 0.5rem;
    font-size: 0.8125rem;
}

/* ============================================================
   Search bar
   ============================================================ */

.search-section {
    margin: 1rem 0 1.25rem;
}

.search-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-pane);
    border: 1px solid var(--border);
    border-left: 3px solid var(--fg-prompt);
    padding: 0.6rem 0.85rem;
    border-radius: 2px;
}

.search-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--fg-text);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    font-weight: 400;
    caret-color: var(--fg-prompt);
}

.search-input::placeholder {
    color: var(--fg-comment);
    font-style: normal;
}

.search-status {
    margin-top: 0.4rem;
    padding-left: 1rem;
    font-size: 0.8125rem;
}

/* ============================================================
   Prompt + command tokens
   ============================================================ */

.prompt {
    color: var(--fg-prompt);
    font-family: var(--font-prompt);
    font-weight: 600;
    font-size: 0.9375rem;
    flex-shrink: 0;
    user-select: none;
}

.cmd-name {
    color: var(--fg-text);
}

.cmd-flag {
    color: #8be9fd;
}

.arg {
    color: var(--fg-string);
}

.pipe {
    color: var(--fg-error);
    padding: 0 0.15rem;
}

.inline-code {
    color: var(--fg-string);
    background: rgba(241, 250, 140, 0.07);
    padding: 0 4px;
    border-radius: 2px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

/* ============================================================
   Cursor
   ============================================================ */

.cursor {
    display: inline-block;
    color: var(--fg-prompt);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1;
    animation: blink 1.05s steps(1) infinite;
    margin-left: 2px;
    text-shadow: 0 0 8px rgba(80, 250, 123, 0.45);
}

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

@media (prefers-reduced-motion: reduce) {
    .cursor {
        animation: none;
        opacity: 1;
    }
}

/* ============================================================
   ASCII dividers
   ============================================================ */

.ascii-divider {
    margin: 1.5rem 0;
    color: var(--fg-comment);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    overflow: hidden;
    white-space: nowrap;
}

.divider-line {
    display: inline-block;
    letter-spacing: -1px;
}

/* ============================================================
   Category sections
   ============================================================ */

.category {
    margin: 1rem 0 1.5rem;
    animation: fadein 0.18s ease;
}

.category.hidden {
    display: none;
}

@keyframes fadein {
    from { opacity: 0; transform: translateY(2px); }
    to   { opacity: 1; transform: translateY(0); }
}

.category-header {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    color: var(--fg-text);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.category-title {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.125rem;
    text-transform: uppercase;
    color: var(--fg-prompt);
    letter-spacing: 0.05em;
    margin: 0.25rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px dashed var(--border);
}

/* ============================================================
   Recipes
   ============================================================ */

.recipe {
    margin: 1.25rem 0;
}

.recipe.hide-by-search {
    display: none;
}

.recipe-question {
    margin-bottom: 0.4rem;
    font-size: 0.875rem;
}

/* Command block (the green-bordered terminal command) */
.command-block {
    margin: 0.5rem 0;
    padding: 0.85rem 1rem;
    background: var(--bg-pane);
    border-left: 3px solid var(--fg-prompt);
    border-radius: 2px;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    line-height: 1.5;
    transition: background 0.18s ease, transform 0.18s ease;
    cursor: copy;
    position: relative;
}

.command-block::after {
    content: '⎘ copy';
    position: absolute;
    right: 0.65rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.7rem;
    color: var(--fg-comment);
    opacity: 0;
    transition: opacity 0.15s ease;
    pointer-events: none;
}

.command-block:hover {
    background: #20203a;
}

.command-block:hover::after {
    opacity: 1;
}

.command-block.copied::after {
    content: '✓ copied';
    color: var(--fg-prompt);
    opacity: 1;
}

.command-block.danger {
    border-left-color: var(--fg-error);
    background: rgba(255, 85, 85, 0.06);
}

.command-block.danger:hover {
    background: rgba(255, 85, 85, 0.1);
}

/* Output (comments below the command) */
.recipe-output {
    margin-top: 0.4rem;
    padding-left: 1rem;
    font-size: 0.875rem;
    color: var(--fg-comment);
    line-height: 1.55;
}

.comment {
    color: var(--fg-comment);
}

/* Warning banner */
.warning {
    margin-top: 0.5rem;
    padding: 0.6rem 0.85rem;
    border-left: 3px solid var(--fg-error);
    background: rgba(255, 85, 85, 0.05);
    color: var(--fg-error);
    font-size: 0.875rem;
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
    border-radius: 2px;
}

.warn-icon {
    color: var(--fg-error);
    font-size: 1rem;
    flex-shrink: 0;
    line-height: 1.4;
}

.warn-text {
    color: #ff8e8e;
    line-height: 1.55;
}

/* ============================================================
   Footer / live prompt
   ============================================================ */

.footer-section {
    margin: 1.5rem 0 1rem;
}

.footer-block {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    margin-bottom: 0.4rem;
}

.prompt-line {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-top: 1rem;
    padding-top: 0.5rem;
}

/* ============================================================
   Status bar
   ============================================================ */

.status-bar {
    height: 22px;
    background: var(--fg-prompt);
    color: #0c0c0c;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    padding: 0 0.85rem;
    gap: 1rem;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}

.status-left {
    background: rgba(0, 0, 0, 0.18);
    padding: 1px 6px;
    border-radius: 2px;
}

.status-mid {
    flex: 1;
}

.status-right {
    color: rgba(12, 12, 12, 0.85);
}

/* ============================================================
   No-match state
   ============================================================ */

.no-results {
    margin: 1.5rem 0;
    padding: 1rem;
    background: var(--bg-pane);
    border-left: 3px solid var(--fg-error);
    color: var(--fg-error);
    font-size: 0.9375rem;
}

.no-results.hidden {
    display: none;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 760px) {
    body {
        padding: 0.5rem;
    }

    .terminal-body {
        grid-template-columns: 1fr;
    }

    .sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 0.5rem;
    }

    .tab-list {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 4px;
    }

    .tab {
        flex: 1 1 auto;
    }

    .sidebar-footer {
        display: none;
    }

    .main-pane {
        padding: 0.85rem 1rem 1.5rem;
    }

    .ascii-banner {
        font-size: 0.6rem;
    }
}

/* Custom scrollbar to match terminal */
.main-pane::-webkit-scrollbar {
    width: 10px;
}

.main-pane::-webkit-scrollbar-track {
    background: var(--bg-terminal);
}

.main-pane::-webkit-scrollbar-thumb {
    background: var(--bg-selection);
    border-radius: 0;
}

.main-pane::-webkit-scrollbar-thumb:hover {
    background: var(--fg-comment);
}