cliboard 0.1.0

/* cliboard viewer — themed with CSS custom properties */

/* ===== Theme definitions ===== */

/* Dark theme (default) */
:root, [data-theme="dark"] {
    --bg: #1C1917;
    --bg-card: #292524;
    --border: #44403C;
    --text: #FAFAF9;
    --text-muted: #A8A29E;
    --text-secondary: #D6D3D1;
    --accent: #CA8A04;
    --accent-hover: #EAB308;
    --result-bg: rgba(202, 138, 4, 0.05);
    --error-bg: #451A1A;
    --error-border: #7F1D1D;
    --error-text: #FCA5A5;
    --toast-bg: #292524;
    --toast-border: #44403C;
    --toggle-bg: rgba(255, 255, 255, 0.06);
    --toggle-hover: rgba(255, 255, 255, 0.12);
    --toggle-active: rgba(202, 138, 4, 0.2);
}

/* Warm theme */
[data-theme="warm"] {
    --bg: #1A1412;
    --bg-card: #2A1F1A;
    --border: #4A3828;
    --text: #F5E6D3;
    --text-muted: #B89A7A;
    --text-secondary: #D4B896;
    --accent: #D4943A;
    --accent-hover: #E8A94E;
    --result-bg: rgba(212, 148, 58, 0.08);
    --error-bg: #3A1818;
    --error-border: #6B2020;
    --error-text: #F0A0A0;
    --toast-bg: #2A1F1A;
    --toast-border: #4A3828;
    --toggle-bg: rgba(255, 230, 200, 0.06);
    --toggle-hover: rgba(255, 230, 200, 0.12);
    --toggle-active: rgba(212, 148, 58, 0.2);
}

/* System theme — follows OS preference */
[data-theme="system"] {
    --bg: #1C1917;
    --bg-card: #292524;
    --border: #44403C;
    --text: #FAFAF9;
    --text-muted: #A8A29E;
    --text-secondary: #D6D3D1;
    --accent: #CA8A04;
    --accent-hover: #EAB308;
    --result-bg: rgba(202, 138, 4, 0.05);
    --error-bg: #451A1A;
    --error-border: #7F1D1D;
    --error-text: #FCA5A5;
    --toast-bg: #292524;
    --toast-border: #44403C;
    --toggle-bg: rgba(255, 255, 255, 0.06);
    --toggle-hover: rgba(255, 255, 255, 0.12);
    --toggle-active: rgba(202, 138, 4, 0.2);
}

@media (prefers-color-scheme: light) {
    [data-theme="system"] {
        --bg: #FAFAF9;
        --bg-card: #FFFFFF;
        --border: #D6D3D1;
        --text: #1C1917;
        --text-muted: #78716C;
        --text-secondary: #44403C;
        --accent: #B45309;
        --accent-hover: #D97706;
        --result-bg: rgba(180, 83, 9, 0.06);
        --error-bg: #FEF2F2;
        --error-border: #FECACA;
        --error-text: #991B1B;
        --toast-bg: #FFFFFF;
        --toast-border: #D6D3D1;
        --toggle-bg: rgba(0, 0, 0, 0.04);
        --toggle-hover: rgba(0, 0, 0, 0.08);
        --toggle-active: rgba(180, 83, 9, 0.12);
    }
}

/* ===== Base ===== */

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    line-height: 1.6;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background 0.3s, color 0.3s;
}

/* ===== Board layout ===== */

#board {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Header */
#board-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

#board-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
}

#step-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ===== Steps ===== */

.step {
    margin-bottom: 2.5rem;
}

.step-header {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.step-number {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
}

/* ===== Equation cards ===== */

.equation-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    padding: 1rem 1rem;
    transition: background 0.3s, border-color 0.3s;
}

.equation-content {
    flex: 1;
    text-align: center;
    overflow-x: auto;
    padding: 0.5rem 0;
}

.equation-number {
    flex-shrink: 0;
    padding-left: 1rem;
    font-family: KaTeX_Main, "Times New Roman", serif;
    font-size: 1rem;
    color: var(--text-muted);
    user-select: none;
}

.equation-card .katex-display {
    margin: 0;
}

/* ===== Notes / annotations ===== */

.note {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-style: italic;
    padding-left: 1rem;
    border-left: 2px solid var(--border);
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
}

.note:first-of-type {
    margin-top: 0.75rem;
}

.note:last-of-type {
    margin-bottom: 0.5rem;
}

.note + .note {
    border-top: none;
    margin-top: 0;
}

/* ===== Prose blocks ===== */

.prose {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* ===== Section dividers ===== */

.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2.5rem 0;
}

/* ===== Result boxes ===== */

.result {
    border-left: 3px solid var(--accent);
    background: var(--result-bg);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2.5rem;
}

.result .step-title {
    color: var(--accent-hover);
}

/* ===== Error cards ===== */

.error-card {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: 8px;
    padding: 1rem;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.85rem;
    color: var(--error-text);
    overflow-x: auto;
    margin-bottom: 0.75rem;
}

/* ===== Send-to-terminal button ===== */

#send-btn {
    position: fixed;
    background: var(--accent);
    color: var(--bg);
    font-weight: 600;
    border-radius: 6px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    z-index: 100;
    font-size: 0.85rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    user-select: none;
    transition: background 0.15s;
}

#send-btn:hover {
    background: var(--accent-hover);
}

#send-btn.hidden {
    display: none;
}

/* ===== Toast ===== */

#toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--toast-bg);
    border: 1px solid var(--toast-border);
    color: var(--text);
    padding: 0.5rem 1.5rem;
    border-radius: 6px;
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 200;
    pointer-events: none;
}

#toast.hidden {
    display: none;
}

/* ===== Theme toggle ===== */

#theme-toggle {
    position: fixed;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: var(--toggle-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 4px;
    z-index: 50;
    transition: background 0.3s, border-color 0.3s;
}

#theme-toggle button {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 6px;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
    padding: 0;
}

#theme-toggle button:hover {
    background: var(--toggle-hover);
}

#theme-toggle button.active {
    background: var(--toggle-active);
}

#theme-toggle button svg {
    width: 16px;
    height: 16px;
    fill: var(--text-muted);
    transition: fill 0.3s;
}

#theme-toggle button.active svg {
    fill: var(--accent);
}

/* ===== Animations ===== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step.new {
    animation: fadeIn 200ms ease-out;
}

@media (prefers-reduced-motion: reduce) {
    .step.new {
        animation: none;
    }
    body {
        transition: none;
    }
}

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

@media (max-width: 600px) {
    #board {
        padding: 1.25rem 1rem;
    }

    .equation-card {
        padding: 1rem;
    }

    .result {
        padding: 1rem;
    }

    #board-title {
        font-size: 1.2rem;
    }

    #theme-toggle {
        right: 0.5rem;
    }
}

/* ===== KaTeX color override ===== */

.katex {
    color: var(--text);
}

/* ===== Chat toggle ===== */

.cb-chat-toggle {
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    color: var(--text-muted);
    transition: color 0.2s, background 0.2s;
    position: relative;
    display: flex;
    align-items: center;
    gap: 4px;
}
.cb-chat-toggle:hover {
    color: var(--accent);
    background: var(--toggle-active);
}
.cb-chat-toggle svg {
    width: 18px;
    height: 18px;
}
.cb-chat-badge {
    position: absolute;
    top: -2px;
    right: 2px;
    background: var(--accent);
    color: var(--bg);
    font-size: 10px;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

/* ===== Chat thread ===== */

.cb-chat-thread {
    display: none;
    border-top: 1px solid var(--border);
}
.cb-chat-thread.open {
    display: block;
    max-height: 600px;
    overflow-y: auto;
}
.cb-chat-messages {
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ===== Chat message bubbles ===== */

.cb-chat-msg {
    max-width: 85%;
    padding: 8px 12px;
    border-radius: 12px;
    font-size: 0.9em;
    line-height: 1.5;
    word-wrap: break-word;
}
.cb-chat-msg.user {
    align-self: flex-end;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
}
.cb-chat-msg.assistant {
    align-self: stretch;
    max-width: 100%;
    background: transparent;
    border: none;
    border-left: 2px solid var(--accent);
    border-radius: 0;
    padding: 12px 16px;
    color: var(--text);
}
.cb-chat-msg .katex { font-size: 1em; }

/* ===== Reply content (textbook-style) ===== */

.reply-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.reply-prose {
    margin: 0;
    line-height: 1.6;
    font-size: 0.92em;
    color: var(--text);
}
.reply-equation {
    margin: 4px 0;
    padding: 0.75rem 1rem;
    font-size: 0.95em;
}
.reply-equation .equation-number {
    font-size: 0.9rem;
}
.cb-chat-context {
    font-size: 0.8em;
    color: var(--text-muted);
    margin-bottom: 4px;
    font-style: italic;
}
.cb-chat-time {
    font-size: 0.7em;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ===== Chat input ===== */

.cb-chat-input-row {
    display: flex;
    gap: 8px;
    padding: 8px 16px 12px;
    border-top: 1px solid var(--border);
}
.cb-chat-input {
    flex: 1;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    color: var(--text);
    font-size: 0.9em;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}
.cb-chat-input:focus {
    border-color: var(--accent);
}
.cb-chat-input::placeholder {
    color: var(--text-muted);
}
.cb-chat-send {
    background: var(--accent);
    color: var(--bg);
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.85em;
    transition: opacity 0.2s;
}
.cb-chat-send:hover {
    opacity: 0.85;
}
.cb-chat-send:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ===== Ask about this ===== */

.cb-ask-btn {
    background: var(--toggle-active);
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 6px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 0.85em;
    font-weight: 500;
    transition: background 0.2s;
}
.cb-ask-btn:hover {
    background: var(--result-bg);
}