/*
 * graph.storage design system
 * Monospace-first, offset-shadow aesthetic
 * Reusable across projects
 */

/* ==========================================================================
   1. Design Tokens
   ========================================================================== */

:root {
    /* Typography */
    --font-mono: 'Berkeley Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    --font-size-base: 14px;
    --line-height: 1.5;

    /* Colors: Core */
    --color-text: #24292e;
    --color-text-secondary: #586069;
    --color-text-muted: #aaa;
    --color-bg: #ffffff;
    --color-bg-subtle: #faf9f6;
    --color-link: #0366d6;

    /* Colors: Borders & Surfaces */
    --color-border: #bfbfbf;
    --color-border-strong: #24292e;
    --color-accent: #f5cd6e;

    /* Colors: Semantic */
    --color-success: #00a96c;
    --color-error: #e7040f;
    --color-warning: #ffb700;
    --color-info: #005eec;
    --color-danger: #ff4136;

    /* Shadows */
    --shadow-offset: 4px 4px 0;
    --shadow-offset-sm: 3px 3px 0;
    --shadow-color: var(--color-border);

    /* Sizing */
    --input-height: 32px;
    --input-max-width: 320px;
    --container-width: 104ch;
}

/* ==========================================================================
   2. Base / Reset
   ========================================================================== */

html {
    font-family: var(--font-mono);
    -webkit-font-smoothing: antialiased;
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-bg);
    max-width: var(--container-width);
    padding: 2ch;
    margin: auto;
    font-size: var(--font-size-base);
}
body { margin: 0; padding: 0; }
* { box-sizing: border-box; }

/* ==========================================================================
   3. Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-mono);
    color: var(--color-text);
    margin-top: 2em; margin-bottom: 1em;
    line-height: 1.25;
}
h1 { margin-top: 1em; }
h2 { margin-top: 2.5em; }
h3, h4, h5, h6 { font-size: 1.3rem; }
h4, h5, h6 { font-weight: normal; }
p { margin-top: 0; margin-bottom: 1em; }

a {
    color: var(--color-link);
    text-decoration: underline;
    transition: color 0.2s ease-in-out;
}
a:hover { color: var(--color-text); }

small, .text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-danger { color: var(--color-danger); text-decoration: underline; }

/* Heading prefixes (landing pages) */
.landing h1::before { content: "\2593"; margin-right: 1ch; }
.landing h2::before { content: "\2592"; margin-right: 1ch; }
.landing h3::before { content: "\2591"; margin-right: 1ch; }

/* ==========================================================================
   4. Lists
   ========================================================================== */

ul { list-style-type: none; padding-left: 1em; margin-top: 0; margin-bottom: 1em; }
ul li { position: relative; padding-left: 1.5em; }
ul li::before { content: "\00BB"; position: absolute; left: 0; }
ul ul { margin-top: 0.25em; margin-bottom: 0.5em; }
ul ul li::before { content: "\203A"; }
ol { padding-left: 2em; margin-top: 0; margin-bottom: 1em; }

/* ==========================================================================
   5. Code / Pre
   ========================================================================== */

pre, code {
    font-family: var(--font-mono);
    background-color: var(--color-bg-subtle);
}
code { padding: 0.2em 0.3em; }
pre {
    padding: 16px; overflow: auto;
    line-height: 1.45;
    margin-top: 0; margin-bottom: 1em;
    border: 2px solid var(--color-border-strong);
    box-shadow: var(--shadow-offset) var(--color-warning);
}
pre code { background-color: transparent; padding: 0; font-size: inherit; }

/* Prism.js overrides */
code[class*="language-"],
pre[class*="language-"] {
    font-family: inherit !important;
    font-size: inherit !important;
    background: var(--color-bg-subtle) !important;
    text-shadow: none !important;
    line-height: inherit !important;
}
pre[class*="language-"] { padding: 16px !important; margin: 0 0 1em !important; border-radius: 0 !important; }
.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #8b949e; }
.token.punctuation { color: var(--color-text); }
.token.property, .token.tag, .token.constant, .token.symbol, .token.deleted { color: #cf222e; }
.token.boolean, .token.number { color: #0550ae; }
.token.string, .token.char, .token.attr-value, .token.inserted { color: #116329; }
.token.operator, .token.entity, .token.url { color: var(--color-text); }
.token.keyword, .token.function { color: #8250df; }
.token.variable { color: #953800; }
.token.important, .token.bold { font-weight: bold; }

/* ==========================================================================
   6. Tables
   ========================================================================== */

table {
    display: table !important;
    width: 100%; border-spacing: 0; border-collapse: collapse;
    text-align: left;
    font-family: var(--font-mono);
    border: 2px solid var(--color-border-strong);
    margin-bottom: 1em;
    box-shadow: var(--shadow-offset) var(--shadow-color);
}
th, td {
    border: 1px solid var(--color-border) !important;
    padding: 0.3rem 0.5rem !important;
    text-overflow: ellipsis; overflow: hidden; vertical-align: top;
}
th {
    font-weight: bold;
    border-top: none !important;
    border-bottom: 2px solid var(--color-border-strong) !important;
    cursor: pointer; user-select: none; white-space: nowrap;
    background: var(--color-bg-subtle);
}
th:hover { background-color: #f0f0f0; }
tr:nth-child(even) { background-color: #eee; }

/* Table color variants */
.table-gold   { box-shadow: var(--shadow-offset) var(--color-warning); }
.table-blue   { box-shadow: var(--shadow-offset) #1660c1; }
.table-green  { box-shadow: var(--shadow-offset) #008458; }
.table-red    { box-shadow: var(--shadow-offset) var(--color-error); }
.table-gray   { box-shadow: var(--shadow-offset) #777; }

/* Expired / muted rows */
tr.expired td { color: var(--color-text-muted) !important; text-decoration: line-through; }
tr.expired .badge { opacity: 0.5; }

/* ==========================================================================
   7. Badges
   ========================================================================== */

.badge {
    font-weight: 400; font-style: normal;
    line-height: 1.2rem; padding: 0 0.3rem;
    letter-spacing: 0.1rem; text-transform: uppercase;
    border: 1px dotted #000; white-space: nowrap;
}
.badge-red   { color: var(--color-danger); border-color: var(--color-danger); }
.badge-blue  { color: var(--color-info); border-color: var(--color-info); }
.badge-green { color: var(--color-success); border-color: var(--color-success); }
.badge-gold  { color: var(--color-warning); border-color: var(--color-warning); }
.badge-gray  { color: #777; border-color: #777; }

/* Legacy alias */
.sku { font-weight: 400; font-style: normal; line-height: 1.2rem; padding: 0 0.3rem;
       letter-spacing: 0.1rem; text-transform: uppercase; border: 1px dotted #000; white-space: nowrap; }
.sku-red { color: var(--color-danger); border-color: var(--color-danger); }
.sku-blue { color: var(--color-info); border-color: var(--color-info); }
.sku-green { color: var(--color-success); border-color: var(--color-success); }
.sku-gold { color: var(--color-warning); border-color: var(--color-warning); }
.sku-gray { color: #777; border-color: #777; }

/* ==========================================================================
   8. Horizontal Rule / Blockquote
   ========================================================================== */

hr { overflow: visible; height: 0; margin: 1rem 0 3rem; border: none; border-top: 2px dotted #ddd; }

blockquote {
    font-style: italic; margin: 1em 0;
    padding: 0.5em 0 0.5em 1em;
    color: #46484a;
    border-left: 0.2em solid var(--color-accent);
}
blockquote p:last-child { margin-bottom: 0; }

/* ==========================================================================
   9. Navigation
   ========================================================================== */

.topnav {
    display: flex; justify-content: space-between;
    align-items: baseline; padding: 0.5em 0;
    margin-bottom: 1.5em; border-bottom: 2px dotted #ddd;
    gap: 1em;
}
.topnav-links {
    display: flex; flex-wrap: wrap; align-items: baseline; gap: 0;
}
.topnav a {
    text-decoration: none; color: var(--color-text-secondary);
    padding: 0.2em 0.4em; white-space: nowrap; transition: color 0.15s;
}
.topnav a:hover { color: var(--color-text); }
.topnav a.active {
    color: var(--color-text); font-weight: bold;
    border-bottom: 2px solid var(--color-accent);
}
.topnav .topnav-sep { color: var(--color-text-muted); padding: 0 0.1em; user-select: none; }
.topnav .topnav-brand { font-weight: bold; color: var(--color-text); margin-right: 0.5em; }

/* Legacy aliases */
nav.topnav { display: flex; justify-content: space-between; align-items: baseline;
             padding: 0.5em 0; margin-bottom: 1.5em; border-bottom: 2px dotted #ddd; gap: 1em; }
.nav-links { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0; }
nav.topnav a { text-decoration: none; color: var(--color-text-secondary);
               padding: 0.2em 0.4em; white-space: nowrap; transition: color 0.15s; }
nav.topnav a:hover { color: var(--color-text); }
nav.topnav a.active { color: var(--color-text); font-weight: bold; border-bottom: 2px solid var(--color-accent); }
nav.topnav .sep { color: var(--color-text-muted); padding: 0 0.1em; user-select: none; }
nav.topnav .nav-brand { font-weight: bold; color: var(--color-text); margin-right: 0.5em; }

/* ==========================================================================
   10. User Menu (dropdown)
   ========================================================================== */

.user-menu {
    position: relative; margin: 0; padding: 0 !important;
    background: none !important; border: none !important; box-shadow: none !important;
    flex-shrink: 0;
}
.user-menu[open] { padding: 0 !important; }
.user-menu-toggle {
    cursor: pointer; padding: 0.2em 0.4em;
    color: var(--color-text-secondary);
    list-style: none; font-weight: normal; white-space: nowrap;
}
.user-menu-toggle::-webkit-details-marker { display: none; }
.user-menu-toggle::before { content: none !important; }
.user-menu-toggle::after { content: " \25BE"; }
.user-menu[open] > .user-menu-toggle { color: var(--color-text); }
.user-menu-dropdown {
    position: absolute; right: 0; top: 100%; z-index: 10;
    min-width: 16ch; margin-top: 0.3em;
    background: var(--color-bg);
    border: 2px solid var(--color-border-strong);
    box-shadow: var(--shadow-offset) var(--shadow-color);
    padding: 0.3em 0;
}
.user-menu-item {
    display: block; padding: 0.4em 0.8em;
    color: var(--color-text); text-decoration: none; white-space: nowrap;
}
a.user-menu-item:hover { background: var(--color-bg-subtle); }

/* ==========================================================================
   11. Form Controls
   ========================================================================== */

input[type="text"],
input[type="password"],
input[type="number"],
input[type="search"],
textarea,
select {
    font-family: var(--font-mono);
    height: var(--input-height); padding: 0 8px;
    border: 1px solid var(--color-border);
    background: var(--color-bg-subtle); color: var(--color-text);
    outline: none; transition: border-color 0.15s;
    width: 100%; max-width: var(--input-max-width);
    box-sizing: border-box; line-height: 30px;
}
input:focus, textarea:focus, select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px var(--color-accent);
}
textarea {
    max-width: 100%; min-height: 4em; height: auto;
    line-height: var(--line-height); padding: 6px 8px; resize: vertical;
}
select {
    cursor: pointer; appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23586069' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5em center;
    padding-right: 2em;
}
label { display: block; margin-bottom: 0.25em; color: var(--color-text-secondary); }

/* Form layout */
.form-group { margin-bottom: 1em; }
.form-group label { font-weight: bold; }
.form-row { display: flex; flex-wrap: wrap; gap: 1em; }
.form-row .form-group { flex: 1; min-width: 15ch; }
.form-inline { display: flex; align-items: center; gap: 0.5em; margin-bottom: 1.5em; }
.form-inline > label { display: inline; margin-bottom: 0; }
.form-inline select, .form-inline input { width: auto; max-width: none; }
.form-inline button { flex-shrink: 0; }

/* Checkbox group */
.checkbox-group {
    display: flex; align-items: center; gap: 1.5em;
    height: var(--input-height); padding: 0 8px;
    border: 1px solid var(--color-border);
    background: var(--color-bg-subtle);
    box-sizing: border-box;
    width: 100%; max-width: var(--input-max-width);
}
.checkbox-group > label {
    display: flex !important; align-items: center; gap: 0.4em;
    cursor: pointer; color: var(--color-text);
    font-weight: normal !important; margin: 0 !important; padding: 0; white-space: nowrap;
}
.checkbox-group input[type="checkbox"] {
    cursor: pointer; margin: 0; flex-shrink: 0;
    width: auto !important; max-width: none !important;
}

/* ==========================================================================
   12. Buttons
   ========================================================================== */

button, .btn {
    font-family: var(--font-mono);
    height: var(--input-height); padding: 0 12px;
    border: 2px solid var(--color-border-strong);
    background: var(--color-border-strong); color: var(--color-bg);
    cursor: pointer; transition: all 0.1s;
    text-decoration: none; display: inline-flex;
    align-items: center; justify-content: center; white-space: nowrap;
    box-sizing: border-box; line-height: 28px;
    box-shadow: var(--shadow-offset-sm) var(--shadow-color);
    position: relative;
}
button:hover, .btn:hover {
    box-shadow: 1px 1px 0 var(--shadow-color);
    transform: translate(2px, 2px);
}
button:active, .btn:active {
    box-shadow: none;
    transform: translate(3px, 3px);
}
button:disabled, .btn:disabled {
    opacity: 0.4; cursor: not-allowed;
    box-shadow: none; transform: none;
}
.btn-small { padding: 0 8px; }

/* OAuth button (light variant) */
.btn-oauth {
    display: flex; align-items: center; justify-content: center;
    width: 100%; height: 40px;
    background: var(--color-bg-subtle); color: var(--color-text);
    border: 2px solid var(--color-border-strong);
    text-decoration: none; font-weight: bold;
    box-shadow: var(--shadow-offset-sm) var(--color-border-strong);
    transition: all 0.1s;
}
.btn-oauth:hover {
    box-shadow: 1px 1px 0 var(--color-border-strong);
    transform: translate(2px, 2px);
    color: var(--color-text);
}
.btn-oauth:active { box-shadow: none; transform: translate(3px, 3px); }

/* ==========================================================================
   13. Cards / Panels
   ========================================================================== */

.card {
    border: 2px solid var(--color-border-strong);
    padding: 1em 1.2em; margin-bottom: 1em;
    background: var(--color-bg);
    box-shadow: var(--shadow-offset) var(--shadow-color);
}
.card-gold  { box-shadow: var(--shadow-offset) var(--color-warning); }
.card-blue  { box-shadow: var(--shadow-offset) #1660c1; }
.card-green { box-shadow: var(--shadow-offset) #008458; }
.card-red   { box-shadow: var(--shadow-offset) var(--color-error); }
.card-gray  { box-shadow: var(--shadow-offset) #777; }

.card-title {
    font-weight: bold; margin-bottom: 0.3em;
    color: var(--color-text-secondary); font-size: 0.85em;
    text-transform: uppercase; letter-spacing: 0.1em;
}
.card-value { font-size: 1.8em; font-weight: bold; line-height: 1.2; }
.card-detail { color: var(--color-text-secondary); font-size: 0.85em; margin-top: 0.3em; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(18ch, 1fr));
    gap: 1em; margin-bottom: 2em;
}

/* ==========================================================================
   14. Flash / Alert Messages
   ========================================================================== */

.flash-error {
    padding: 0.6em 1em; margin-bottom: 1em;
    color: #721c24; background: #f8d7da;
    border: 2px solid var(--color-error);
    box-shadow: var(--shadow-offset-sm) var(--color-error);
}

/* ==========================================================================
   15. Details / Collapsible
   ========================================================================== */

details {
    margin: 0.5em 0; padding: 0.3em 0.8em;
    background-color: rgba(0, 0, 0, 0.02);
    border: 2px solid var(--color-border-strong);
    box-shadow: var(--shadow-offset) var(--shadow-color);
}
details[open] { padding-bottom: 0.8em; }
summary {
    font-weight: bold; cursor: pointer;
    padding: 0.3em 0; list-style: none; outline: none;
}
summary::-webkit-details-marker { display: none; }
summary::before { content: "[ > ] "; font-family: var(--font-mono); }
details[open] > summary::before { content: "[ v ] "; }

/* Inline details (no border/shadow) */
details.inline { margin: 0; padding: 0; background: none; border: none; box-shadow: none; }
details.inline summary { padding: 0; font-weight: normal; color: var(--color-link); cursor: pointer; }
details.inline summary::before { content: none; }

/* ==========================================================================
   16. Split View (file explorer)
   ========================================================================== */

.split-view { display: flex; gap: 2em; align-items: flex-start; }
.split-left { flex: 1; min-width: 25ch; }
.split-right { flex: 2; min-width: 35ch; }

/* ==========================================================================
   17. File Tree
   ========================================================================== */

.file-tree { line-height: 1.8; }
.file-tree .tree-item {
    display: flex; justify-content: space-between;
    align-items: baseline; padding: 0.15em 0.3em; white-space: nowrap;
}
.file-tree .tree-dir { cursor: default; color: var(--color-text); margin-top: 0.3em; }
.file-tree .tree-file { cursor: pointer; transition: background 0.1s; }
.file-tree .tree-file:hover { background: var(--color-bg-subtle); }
.file-tree .tree-file.active { background: var(--color-accent); }
.file-tree .tree-meta { color: var(--color-text-muted); margin-left: auto; }

/* ==========================================================================
   18. Commits
   ========================================================================== */

.commit-sha { font-weight: bold; color: var(--color-link); }
.commit-message { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.commit-author { color: var(--color-text-secondary); }
.commit-time { color: var(--color-text-muted); }
.commit-detail .file-entry { padding: 0.1em 0; }
.file-added    { color: var(--color-success); }
.file-deleted  { color: var(--color-danger); }
.file-modified { color: var(--color-text-secondary); }

/* ==========================================================================
   19. Login Page
   ========================================================================== */

.login-container { max-width: 44ch; margin: 8vh auto; padding: 2ch; }
.login-container h1 { margin-top: 0; }

.login-card {
    border: 3px solid var(--color-border-strong);
    padding: 1.5em; margin: 0;
    position: relative; background: var(--color-bg);
}
.login-card::after {
    content: ""; position: absolute;
    top: 8px; left: 8px; right: -8px; bottom: -8px;
    border: 2px dotted var(--color-border);
    z-index: -1;
}
.login-card legend { font-weight: bold; padding: 0 0.5em; font-style: italic; }
.login-card .form-group input { width: 100%; max-width: 100%; }
.login-card button { width: 100%; height: 36px; margin-top: 0.5em; }

.login-hint { margin-top: 2em; color: var(--color-text-secondary); text-align: center; }
.login-divider {
    display: flex; align-items: center; gap: 1em;
    margin: 1.5em 0; color: var(--color-text-muted); font-style: italic;
}
.login-divider::before, .login-divider::after {
    content: ""; flex: 1; border-top: 2px solid var(--color-border-strong);
}

/* ==========================================================================
   20. htmx States
   ========================================================================== */

/* Loading indicator: hidden by default, shown during request */
.htmx-indicator { opacity: 0; transition: opacity 200ms ease-in; }
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator { opacity: 1; }

/* Swap transition: fade out old content */
.htmx-swapping { opacity: 0; transition: opacity 200ms ease-out; }

/* Settle transition: fade in new content */
.htmx-settling { transition: opacity 200ms ease-in; }
.htmx-added { opacity: 0; }

/* Loading text state */
.loading { color: var(--color-text-secondary); font-style: italic; }
.loading::after { content: ""; animation: dots 1.5s steps(3, end) infinite; }
@keyframes dots {
    0%   { content: ""; }
    33%  { content: "."; }
    66%  { content: ".."; }
    100% { content: "..."; }
}

/* ==========================================================================
   21. Footer
   ========================================================================== */

footer {
    margin-top: 4em; padding-top: 1em;
    border-top: 2px dotted #ddd;
    color: var(--color-text-secondary);
}

/* ==========================================================================
   22. Utilities
   ========================================================================== */

.mt-1 { margin-top: 1em; }

/* ==========================================================================
   23. Responsive
   ========================================================================== */

@media (max-width: 768px) {
    html { padding: 1ch; }
    .topnav .topnav-sep,
    nav.topnav .sep { display: none; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .form-row { flex-direction: column; }
    input[type="text"], input[type="password"],
    input[type="number"], input[type="search"],
    textarea, select, .checkbox-group { max-width: 100%; }
    .split-view { flex-direction: column; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .topnav, nav.topnav { flex-direction: column; gap: 0; }
    .topnav a, nav.topnav a { display: block; padding: 0.4em 0; }
    table { display: block; overflow-x: auto; }
}