/* Tokyo Night Inspired Theme */
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+Mono:wght@100..900&family=Noto+Sans:ital,wght@0,100..900;1,100..900&display=swap");

:root {
    --default-font: "Noto Sans", "Inter", sans-serif;
    --font-monospace: "Noto Sans Mono", "Source Code Pro", monospace;
}

/* ── Dark Theme (Tokyo Night) ── */
.theme-dark {
    --accent-h: 202;
    --accent-s: 100%;
    --accent-l: 75%;

    --bg_dark2_x: 18, 18, 24;
    --bg_dark2: rgb(var(--bg_dark2_x));
    --bg_dark_x: 22, 22, 30;
    --bg_dark: rgb(var(--bg_dark_x));
    --bg_x: 26, 27, 38;
    --bg: rgb(var(--bg_x));
    --bg_highlight_x: 41, 46, 66;
    --bg_highlight: rgb(var(--bg_highlight_x));
    --bg_highlight_dark_x: 36, 40, 59;
    --bg_highlight_dark: rgb(var(--bg_highlight_dark_x));
    --terminal_black_x: 65, 72, 104;
    --terminal_black: rgb(var(--terminal_black_x));
    --fg_x: 192, 202, 245;
    --fg: rgb(var(--fg_x));
    --fg_dark_x: 169, 177, 214;
    --fg_dark: rgb(var(--fg_dark_x));
    --comment_x: 86, 95, 137;
    --comment: rgb(var(--comment_x));
    --blue0_x: 61, 89, 161;
    --blue0: rgb(var(--blue0_x));
    --blue_x: 122, 162, 247;
    --blue: rgb(var(--blue_x));
    --cyan_x: 125, 207, 255;
    --cyan: rgb(var(--cyan_x));
    --magenta_x: 187, 154, 247;
    --magenta: rgb(var(--magenta_x));
    --orange_x: 255, 158, 100;
    --orange: rgb(var(--orange_x));
    --yellow_x: 224, 175, 104;
    --yellow: rgb(var(--yellow_x));
    --green_x: 158, 206, 106;
    --green: rgb(var(--green_x));
    --teal_x: 26, 188, 156;
    --teal: rgb(var(--teal_x));
    --red_x: 255, 117, 127;
    --red: rgb(var(--red_x));
    --red1_x: 219, 75, 75;
    --red1: rgb(var(--red1_x));

    --shadow-color: rgba(0, 0, 0, 0.3);
    --hljs-bg: #24283b;
    --hljs-color: #9aa5ce;

    --widget-bg: rgb(15, 15, 20);
    --widget-fg: #00ff00;
    --widget-fg-dim: #00cc00;
    --widget-border: rgba(0, 255, 0, 0.2);
    --widget-row-alt: rgba(0, 255, 0, 0.08);
    --widget-btn-bg: rgba(0, 255, 0, 0.05);
    --widget-btn-bg-hover: rgba(0, 255, 0, 0.15);
    --widget-btn-bg-active: rgba(0, 255, 0, 0.25);
    --widget-btn-accent-bg: #00ff00;
    --widget-btn-accent-fg: rgb(15, 15, 20);
    --widget-btn-accent-hover: #00cc00;
    --widget-input-bg: rgba(0, 255, 0, 0.08);
    --widget-input-border: rgba(0, 255, 0, 0.15);
    --widget-option-bg: rgb(15, 15, 20);
}

/* ── Light Theme (Tokyo Night Light) ── */
.theme-light {
    --accent-h: 202;
    --accent-s: 86%;
    --accent-l: 43%;

    --bg_dark2_x: 233, 235, 240;
    --bg_dark2: rgb(var(--bg_dark2_x));
    --bg_dark_x: 238, 240, 245;
    --bg_dark: rgb(var(--bg_dark_x));
    --bg_x: 248, 249, 252;
    --bg: rgb(var(--bg_x));
    --bg_highlight_x: 225, 228, 236;
    --bg_highlight: rgb(var(--bg_highlight_x));
    --bg_highlight_dark_x: 218, 221, 230;
    --bg_highlight_dark: rgb(var(--bg_highlight_dark_x));
    --terminal_black_x: 15, 15, 20;
    --terminal_black: rgb(var(--terminal_black_x));
    --fg_x: 52, 59, 88;
    --fg: rgb(var(--fg_x));
    --fg_dark_x: 75, 82, 105;
    --fg_dark: rgb(var(--fg_dark_x));
    --comment_x: 120, 128, 160;
    --comment: rgb(var(--comment_x));
    --blue0_x: 61, 89, 161;
    --blue0: rgb(var(--blue0_x));
    --blue_x: 47, 109, 206;
    --blue: rgb(var(--blue_x));
    --cyan_x: 14, 116, 194;
    --cyan: rgb(var(--cyan_x));
    --magenta_x: 130, 90, 210;
    --magenta: rgb(var(--magenta_x));
    --orange_x: 200, 110, 50;
    --orange: rgb(var(--orange_x));
    --yellow_x: 170, 120, 40;
    --yellow: rgb(var(--yellow_x));
    --green_x: 60, 150, 60;
    --green: rgb(var(--green_x));
    --teal_x: 20, 150, 120;
    --teal: rgb(var(--teal_x));
    --red_x: 200, 60, 70;
    --red: rgb(var(--red_x));
    --red1_x: 185, 50, 55;
    --red1: rgb(var(--red1_x));

    --shadow-color: rgba(0, 0, 0, 0.08);
    --hljs-bg: #e9eaf0;

    --widget-bg: rgb(238, 240, 248);
    --widget-fg: #1a6dce;
    --widget-fg-dim: #4b82a8;
    --widget-border: rgba(26, 109, 206, 0.2);
    --widget-row-alt: rgba(26, 109, 206, 0.06);
    --widget-btn-bg: rgba(26, 109, 206, 0.06);
    --widget-btn-bg-hover: rgba(26, 109, 206, 0.14);
    --widget-btn-bg-active: rgba(26, 109, 206, 0.22);
    --widget-btn-accent-bg: #1a6dce;
    --widget-btn-accent-fg: #ffffff;
    --widget-btn-accent-hover: #155bb0;
    --widget-input-bg: rgba(26, 109, 206, 0.06);
    --widget-input-border: rgba(26, 109, 206, 0.15);
    --widget-option-bg: rgb(238, 240, 248);
    --hljs-color: #343b58;
}

/* ── Semantic Aliases ── */
.theme-dark,
.theme-light {
    --background-primary: var(--bg);
    --background-secondary: var(--bg_dark);
    --background-highlight: var(--bg_highlight);
    --text-primary: var(--fg);
    --text-secondary: var(--fg_dark);
    --text-accent: var(--cyan);
    --link-color: hsl(var(--accent-h), var(--accent-s), var(--accent-l));
    --link-hover-color: var(--blue);
    --accent-color: hsl(var(--accent-h), var(--accent-s), var(--accent-l));
}

/* ── Base ── */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    display: flex;
    margin: 0;
    font-family: var(--default-font);
    font-size: 16px;
    line-height: 1.7;
    background-color: var(--background-primary);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

code {
    font-family: var(--font-monospace);
    background-color: var(--hljs-bg);
    color: var(--hljs-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.88em;
}

pre code {
    padding: 0;
    border-radius: 0;
    font-size: 0.85em;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--link-hover-color);
    text-decoration: underline;
}

h1 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5em;
}

h2, h3 {
    color: var(--accent-color);
}

h2 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-top: 2em;
    margin-bottom: 0.75em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--bg_highlight);
}

h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 1.5em;
}

/* ── Sidebar ── */
.sidebar {
    background-color: var(--background-secondary);
    color: var(--text-secondary);
    padding: 24px 20px;
    width: 280px;
    height: 100vh;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-right: 1px solid var(--bg_highlight);
    overflow-y: auto;
}

.sidebar-content {
    display: flex;
    flex-direction: column;
}

.sidebar h1 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: 8px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--bg_highlight);
}

/* ── Theme Toggle ── */
.toggle-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    height: 28px;
    margin: 16px 0;
}

.toggle-container > input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.toggle-container label {
    position: relative;
    cursor: pointer;
    width: 52px;
    height: 28px;
    flex-shrink: 0;
    background-color: var(--bg_highlight);
    border: 1px solid var(--bg_highlight_dark);
    transition: background-color 0.3s;
    border-radius: 14px;
}

.toggle-container label::before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    top: 3px;
    background-color: var(--accent-color);
    transition: transform 0.3s ease;
    border-radius: 50%;
}

.toggle-container label i {
    position: absolute;
    font-size: 11px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    width: 20px;
    text-align: center;
    line-height: 1;
}

.toggle-container label .fa-moon {
    left: 3px;
    color: var(--yellow);
}

.toggle-container label .fa-sun {
    right: 3px;
    color: var(--comment);
}

.toggle-container input:checked + label::before {
    transform: translateX(24px);
}

.toggle-container input:checked + label .fa-sun {
    color: var(--yellow);
}

.toggle-container input:checked + label .fa-moon {
    color: var(--comment);
}

/* ── Language Toggle ── */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 2px;
    font-family: var(--font-monospace);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    user-select: none;
}

.lang-opt {
    cursor: pointer;
    padding: 2px 5px;
    border-radius: 3px;
    color: var(--comment);
    transition: color 0.2s, background-color 0.2s;
}

.lang-opt:hover {
    color: var(--fg);
}

.lang-opt.active {
    color: var(--fg);
    background-color: rgba(var(--bg_highlight_x), 0.45);
}

.lang-sep {
    color: var(--comment);
    font-size: 0.6rem;
}

.lang-badge {
    display: inline-block;
    font-size: 0.55rem;
    font-weight: 700;
    padding: 0 4px;
    border-radius: 3px;
    background: transparent;
    color: var(--comment);
    vertical-align: middle;
    margin-left: 2px;
    letter-spacing: 0.5px;
    opacity: 0.6;
}

.lang-badge.lang-active {
    background: var(--bg_highlight);
    color: var(--fg);
    opacity: 1;
}

/* ── Sidebar Navigation ── */
nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

nav > ul > li {
    margin: 4px 0;
}

nav > ul > li > a {
    font-weight: 500;
}

nav ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 6px 10px;
    border-radius: 6px;
    display: block;
    transition: background-color 0.15s ease, color 0.15s ease;
}

nav ul li a:hover {
    color: var(--text-primary);
    background-color: var(--bg_highlight);
    text-decoration: none;
}

nav details summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 6px 10px;
    border-radius: 6px;
    transition: background-color 0.15s ease;
    color: var(--text-primary);
    list-style: none;
}

nav details summary::-webkit-details-marker {
    display: none;
}

nav details summary::before {
    content: "\25B8";
    display: inline-block;
    margin-right: 8px;
    font-size: 0.7em;
    transition: transform 0.2s ease;
}

nav details[open] summary::before {
    transform: rotate(90deg);
}

nav details summary:hover {
    background-color: var(--bg_highlight);
}

nav details ul {
    margin-left: 10px;
    padding-left: 14px;
    border-left: 2px solid var(--bg_highlight);
    margin-top: 4px;
}

/* ── Main Content ── */
.main-content {
    padding: 40px 48px;
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--background-primary);
    color: var(--text-primary);
    overflow-y: auto;
    flex: 1;
    min-height: 100vh;
}

.main-content table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
    max-width: 100%;
}

/* ── Home Page: Post Cards ── */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.post-card {
    display: flex;
    flex-direction: column;
    padding: 16px 20px;
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    transition: border-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
    text-decoration: none;
    color: inherit;
}

.post-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--shadow-color);
    text-decoration: none;
    color: inherit;
}

.post-card-title {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text-primary);
}

.post-card-date {
    font-size: 0.8rem;
    color: var(--comment);
    margin-top: 4px;
    font-family: var(--font-monospace);
}

/* ── Home Page: Social Links ── */
.socials-list {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.socials-list li a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.92rem;
    padding: 8px 16px;
    border-radius: 6px;
    border: 1px solid var(--bg_highlight);
    transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
    display: inline-block;
}

.socials-list li a:hover {
    border-color: var(--accent-color);
    color: var(--text-primary);
    background-color: var(--bg_highlight);
    text-decoration: none;
}

/* ── Post Metadata ── */
.post-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    font-size: 0.85rem;
    font-family: var(--font-monospace);
    color: var(--comment);
}

.post-meta-category {
    background-color: var(--bg_highlight);
    padding: 3px 10px;
    border-radius: 4px;
    font-weight: 500;
}

.post-meta-date {
    color: var(--comment);
}

/* ── Post Content ── */
.post-content {
    line-height: 1.8;
}

.post-content p {
    margin-bottom: 1.2em;
}

.post-content blockquote {
    border-left: 3px solid var(--accent-color);
    margin: 1.5em 0;
    padding: 0.75em 1.2em;
    background-color: rgba(var(--bg_highlight_x), 0.5);
    border-radius: 0 6px 6px 0;
    color: var(--text-secondary);
}

.post-content blockquote p:last-child {
    margin-bottom: 0;
}

.post-content hr {
    border: none;
    height: 1px;
    background-color: var(--bg_highlight);
    margin: 2.5em 0;
}

.post-content pre {
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid var(--bg_highlight);
    margin: 1.5em 0;
}

.post-content .highlight pre {
    border-radius: 8px;
    padding: 16px;
    overflow-x: auto;
    border: 1px solid var(--bg_highlight);
    margin: 1.5em 0;
}

.post-content img {
    width: 100%;
    height: auto;
    display: block;
    margin: 1.5em auto;
    border-radius: 8px;
    border: 1px solid var(--bg_highlight);
}

.post-content ul,
.post-content ol {
    padding-left: 1.5em;
}

.post-content li {
    margin-bottom: 0.4em;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 0.92em;
}

.post-content th,
.post-content td {
    padding: 10px 14px;
    border: 1px solid var(--bg_highlight);
    text-align: left;
}

.post-content th {
    background-color: var(--background-secondary);
    font-weight: 600;
}

.post-content tr:nth-child(even) {
    background-color: rgba(var(--bg_highlight_x), 0.3);
}

/* ── Sidebar Widgets (shared) ── */
.sidebar-widget {
    font-family: var(--font-monospace);
    font-size: 0.68em;
    background-color: var(--widget-bg);
    color: var(--widget-fg);
    padding: 8px;
    border-radius: 6px;
    box-sizing: border-box;
    max-width: 100%;
    margin-bottom: 8px;
    border: 1px solid var(--widget-border);
}

/* ── Date Widget ── */
.date-widget {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 10px;
}

.date-widget-day {
    font-weight: bold;
    font-size: 1.1em;
}

.date-widget-date {
    color: var(--widget-fg-dim);
    font-size: 0.95em;
}

/* ── Clock Widget ── */
.clock {
    overflow-x: auto;
    white-space: nowrap;
}

.clock table {
    width: 100%;
    border-collapse: collapse;
}

.clock th,
.clock td {
    padding: 2px 5px;
    text-align: left;
}

.clock th {
    border-bottom: 1px solid var(--widget-fg);
}

.clock tr:nth-child(even) {
    background-color: var(--widget-row-alt);
}

.clock td:nth-child(2) {
    font-weight: bold;
}

.clock td:nth-child(3),
.clock td:nth-child(4) {
    font-size: 0.9em;
    color: var(--widget-fg-dim);
}

.clock th:nth-child(4),
.clock td:nth-child(4) {
    text-align: right;
}

/* ── Calculator Widget ── */
.calculator {
    padding: 8px;
}

.calc-display {
    background-color: var(--widget-input-bg);
    color: var(--widget-fg);
    font-size: 1.4em;
    font-weight: bold;
    text-align: right;
    padding: 8px 10px;
    border-radius: 4px;
    margin-bottom: 6px;
    min-height: 1.6em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    border: 1px solid var(--widget-input-border);
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3px;
}

.calc-btn {
    background: var(--widget-btn-bg);
    border: 1px solid var(--widget-border);
    color: var(--widget-fg);
    font-family: var(--font-monospace);
    font-size: 0.95em;
    padding: 6px 0;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.1s ease;
}

.calc-btn:hover {
    background-color: var(--widget-btn-bg-hover);
}

.calc-btn:active {
    background-color: var(--widget-btn-bg-active);
}

.calc-op {
    color: var(--widget-fg-dim);
    background: var(--widget-btn-bg-hover);
}

.calc-eq {
    background-color: var(--widget-btn-accent-bg);
    color: var(--widget-btn-accent-fg);
    font-weight: bold;
}

.calc-eq:hover {
    background-color: var(--widget-btn-accent-hover);
}

.calc-wide {
    grid-column: span 2;
}

/* ── Currency Converter Widget ── */
.currency-widget {
    padding: 10px;
}

.currency-header {
    font-size: 0.95em;
    font-weight: bold;
    margin-bottom: 8px;
    color: var(--widget-fg);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.currency-converter-row {
    display: flex;
    gap: 6px;
    align-items: center;
    margin-bottom: 4px;
}

.currency-input {
    flex: 1;
    background: var(--widget-input-bg);
    border: 1px solid var(--widget-border);
    color: var(--widget-fg);
    font-family: var(--font-monospace);
    font-size: 0.95em;
    padding: 6px 8px;
    border-radius: 4px;
    min-width: 0;
}

.currency-input:focus {
    outline: none;
    border-color: var(--widget-fg);
}

.currency-result {
    flex: 1;
    background: var(--widget-input-bg);
    border: 1px solid var(--widget-input-border);
    color: var(--widget-fg);
    font-family: var(--font-monospace);
    font-size: 0.95em;
    font-weight: bold;
    padding: 6px 8px;
    border-radius: 4px;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.currency-select {
    width: 70px;
    flex-shrink: 0;
    background: var(--widget-input-bg);
    border: 1px solid var(--widget-border);
    color: var(--widget-fg);
    font-family: var(--font-monospace);
    font-size: 0.85em;
    padding: 6px 4px;
    border-radius: 4px;
    cursor: pointer;
}

.currency-select:focus {
    outline: none;
    border-color: var(--widget-fg);
}

.currency-select option {
    background: var(--widget-option-bg);
    color: var(--widget-fg);
}

.currency-swap-row {
    display: flex;
    justify-content: center;
    margin: 2px 0;
}

.currency-swap-btn {
    background: none;
    border: 1px solid var(--widget-border);
    color: var(--widget-fg-dim);
    font-size: 0.8em;
    padding: 2px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.currency-swap-btn:hover {
    background-color: var(--widget-btn-bg-hover);
    color: var(--widget-fg);
}

.currency-rate-info {
    font-size: 0.8em;
    color: var(--widget-fg-dim);
    margin-top: 6px;
    text-align: center;
    opacity: 0.8;
}

/* ── Number input: hide spinners ── */
.currency-input::-webkit-outer-spin-button,
.currency-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.currency-input[type="number"] {
    -moz-appearance: textfield;
}

/* ── Burger Menu (Mobile) ── */
.burger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 1100;
    padding: 4px;
}

.burger-menu span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* ── Search Box (currently disabled) ── */
.search-box {
    padding: 10px;
    margin-bottom: 20px;
    width: 100%;
    box-sizing: border-box;
    background-color: var(--bg_highlight);
    color: var(--text-primary);
    border: 1px solid var(--bg_highlight_dark);
    border-radius: 6px;
}

/* ── Highlight.js Override ── */
.theme-light .hljs {
    background: var(--hljs-bg) !important;
}

/* ── Homepage: Memory Palace Showcase ── */
.showcase {
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    padding: 14px 16px;
    margin-bottom: 8px;
}

.showcase-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.showcase-stats {
    display: flex;
    gap: 16px;
}

.showcase-stat {
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.showcase-stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-color);
    font-family: var(--font-monospace);
}

.showcase-stat-label {
    font-size: 0.75rem;
    color: var(--comment);
}

.showcase-domains {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.showcase-domain {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 4px;
    background-color: var(--bg_highlight);
    color: var(--text-secondary);
}

.showcase-domain-count {
    font-family: var(--font-monospace);
    font-size: 0.65rem;
    color: var(--comment);
}

.showcase-heatmap {
    display: flex;
    gap: 2px;
    overflow-x: auto;
}

.showcase-heatmap-col {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.showcase-heatmap-cell {
    width: 10px;
    height: 10px;
    border-radius: 2px;
    display: block;
    flex-shrink: 0;
}

.showcase-heat-0 { background-color: var(--bg_highlight); }
.showcase-heat-1 { background-color: rgba(var(--green_x), 0.25); }
.showcase-heat-2 { background-color: rgba(var(--green_x), 0.5); }
.showcase-heat-3 { background-color: rgba(var(--green_x), 0.75); }
.showcase-heat-4 { background-color: var(--green); }

.showcase-heatmap-label {
    margin-top: 6px;
    font-size: 0.65rem;
    color: var(--comment);
    font-family: var(--font-monospace);
    text-align: right;
}

/* ── Palace: Layout ── */
.palace-content {
    max-width: 960px;
}

/* ── Palace: Stat Cards ── */
.palace-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.palace-stat {
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    padding: 16px;
}

.palace-stat-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--comment);
}

.palace-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 4px;
}

.palace-stat-value.color-accent { color: var(--blue); }
.palace-stat-value.color-cyan { color: var(--cyan); }
.palace-stat-value.color-yellow { color: var(--yellow); }
.palace-stat-value.color-green { color: var(--green); }
.palace-stat-value.color-red { color: var(--red); }

/* ── Palace: Room Cards ── */
.palace-rooms {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.palace-room-card {
    display: flex;
    flex-direction: column;
    padding: 20px;
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    transition: border-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
    text-decoration: none;
    color: inherit;
}

.palace-room-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--shadow-color);
    text-decoration: none;
    color: inherit;
}

.palace-room-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.palace-room-icon {
    font-size: 1.5rem;
}

.palace-room-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.palace-room-desc {
    font-size: 0.85rem;
    color: var(--comment);
    margin-bottom: 12px;
}

.palace-room-meta {
    display: flex;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--comment);
    font-family: var(--font-monospace);
}

.palace-room-meta .due { color: var(--yellow); }

/* ── Palace: Strength Bar ── */
.strength-bar {
    height: 6px;
    background-color: var(--bg_highlight);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 12px;
}

.strength-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.strength-bar-fill.strength-high { background-color: var(--green); }
.strength-bar-fill.strength-mid { background-color: var(--yellow); }
.strength-bar-fill.strength-low { background-color: var(--red); }

/* ── Palace: Section Header ── */
.palace-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

/* ── Palace: Buttons ── */
.palace-btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    font-family: var(--default-font);
    cursor: pointer;
    border: 1px solid transparent;
    transition: opacity 0.15s ease, background-color 0.15s ease;
    text-decoration: none;
}

.palace-btn:hover { text-decoration: none; }

.palace-btn-primary {
    background-color: var(--blue);
    color: var(--bg_dark2);
}

.palace-btn-primary:hover {
    opacity: 0.9;
    color: var(--bg_dark2);
}

.palace-btn-ghost {
    background-color: transparent;
    border: 1px solid var(--bg_highlight);
    color: var(--comment);
}

.palace-btn-ghost:hover {
    border-color: var(--accent-color);
    color: var(--text-primary);
}

.palace-btn-danger {
    background: none;
    border: none;
    color: var(--red);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 4px 8px;
}

.palace-btn-danger:hover { opacity: 0.8; }

/* ── Palace: Node List ── */
.palace-node-list {
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    overflow: hidden;
}

.palace-node-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--bg_highlight);
    transition: background-color 0.15s ease;
    text-decoration: none;
    color: inherit;
}

.palace-node-item:last-child { border-bottom: none; }
.palace-node-item:hover {
    background-color: var(--bg_highlight);
    text-decoration: none;
    color: inherit;
}

.palace-node-info {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.palace-node-title {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.palace-node-strength {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.palace-node-strength-bar {
    width: 48px;
    height: 6px;
    background-color: var(--bg_highlight);
    border-radius: 3px;
    overflow: hidden;
}

.palace-node-strength-text {
    font-size: 0.75rem;
    color: var(--comment);
    font-family: var(--font-monospace);
    width: 30px;
    text-align: right;
}

/* ── Palace: Tags / Badges ── */
.palace-tag {
    display: inline-block;
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 4px;
    background-color: var(--bg_highlight);
    color: var(--comment);
    font-family: var(--font-monospace);
}

.palace-tag-accent {
    background-color: rgba(var(--blue_x), 0.15);
    color: var(--blue);
}

.palace-badge {
    display: inline-block;
    font-size: 0.65rem;
    padding: 1px 6px;
    border-radius: 8px;
    background-color: var(--yellow);
    color: var(--bg_dark2);
    font-weight: 600;
    font-family: var(--font-monospace);
}

/* ── Palace: Forms ── */
.palace-form-group {
    margin-bottom: 12px;
}

.palace-form-label {
    display: block;
    font-size: 0.8rem;
    color: var(--comment);
    margin-bottom: 4px;
}

.palace-input {
    width: 100%;
    padding: 8px 12px;
    background-color: var(--background-primary);
    border: 1px solid var(--bg_highlight);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--default-font);
    font-size: 0.9rem;
}

.palace-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.palace-textarea {
    width: 100%;
    padding: 8px 12px;
    background-color: var(--background-primary);
    border: 1px solid var(--bg_highlight);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-monospace);
    font-size: 0.85rem;
    resize: vertical;
}

.palace-textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.palace-select {
    padding: 8px 12px;
    background-color: var(--background-primary);
    border: 1px solid var(--bg_highlight);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--default-font);
    font-size: 0.85rem;
}

.palace-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.palace-checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--comment);
}

/* ── Palace: Inline Form Row ── */
.palace-form-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.palace-form-row .palace-input,
.palace-form-row .palace-select {
    flex: 1;
    min-width: 120px;
}

/* ── Palace: Card (generic surface) ── */
.palace-card {
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 16px;
}

.palace-card-header {
    font-size: 0.8rem;
    color: var(--comment);
    margin-bottom: 10px;
    font-weight: 500;
}

/* ── Palace: Empty State ── */
.palace-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--comment);
}

/* ── Palace: Modal ── */
.palace-modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.palace-modal-backdrop.active {
    display: flex;
}

.palace-modal {
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    padding: 24px;
    width: 100%;
    max-width: 420px;
}

.palace-modal h3 {
    color: var(--text-primary);
    margin-top: 0;
    margin-bottom: 16px;
    border-bottom: none;
    padding-bottom: 0;
}

.palace-modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 16px;
}

/* ── Palace: Review Session ── */
.palace-progress {
    margin-bottom: 24px;
}

.palace-progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--comment);
    margin-bottom: 6px;
}

.palace-progress-bar {
    height: 8px;
    background-color: var(--bg_highlight);
    border-radius: 4px;
    overflow: hidden;
}

.palace-progress-fill {
    height: 100%;
    background-color: var(--blue);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.palace-review-card {
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    padding: 32px;
    text-align: center;
}

.palace-review-room {
    font-size: 0.75rem;
    color: var(--comment);
    margin-bottom: 8px;
}

.palace-review-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.palace-review-content {
    text-align: left;
    line-height: 1.7;
    margin-bottom: 24px;
}

.palace-review-challenge {
    background-color: var(--background-primary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
    text-align: left;
}

.palace-review-challenge-label {
    font-size: 0.7rem;
    color: var(--comment);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.palace-review-challenge-prompt {
    font-weight: 500;
    margin-bottom: 8px;
}

.palace-review-challenge-answer {
    font-size: 0.9rem;
    color: var(--comment);
    margin-top: 8px;
}

/* ── Palace: Rating Buttons ── */
.palace-rating-row {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.palace-rate-btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--default-font);
    cursor: pointer;
    border: none;
    transition: opacity 0.15s ease;
}

.palace-rate-btn:hover { opacity: 0.85; }

.palace-rate-forgotten {
    background-color: rgba(var(--red_x), 0.2);
    color: var(--red);
}

.palace-rate-unsure {
    background-color: rgba(var(--yellow_x), 0.2);
    color: var(--yellow);
}

.palace-rate-known {
    background-color: rgba(var(--green_x), 0.2);
    color: var(--green);
}

.palace-rate-instant {
    background-color: rgba(var(--cyan_x), 0.2);
    color: var(--cyan);
}

/* ── Palace: Summary Grid ── */
.palace-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.palace-summary-item {
    background-color: var(--background-primary);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
}

.palace-summary-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.palace-summary-label {
    font-size: 0.7rem;
    color: var(--comment);
    margin-top: 4px;
}

/* ── Palace: Matchup Room ── */
.matchup-log {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.matchup-log th,
.matchup-log td {
    padding: 10px 14px;
    border: 1px solid var(--bg_highlight);
    text-align: left;
}

.matchup-log th {
    background-color: var(--background-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--comment);
}

.matchup-log tr:nth-child(even) {
    background-color: rgba(var(--bg_highlight_x), 0.3);
}

.matchup-result-win { color: var(--green); font-weight: 600; }
.matchup-result-loss { color: var(--red); font-weight: 600; }
.matchup-result-draw { color: var(--yellow); font-weight: 600; }

.matchup-rating-pos { color: var(--green); }
.matchup-rating-neg { color: var(--red); }

.matchup-winrate-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.matchup-winrate-label {
    width: 100px;
    font-size: 0.8rem;
    text-align: right;
    flex-shrink: 0;
}

.matchup-winrate-track {
    flex: 1;
    height: 8px;
    background-color: var(--bg_highlight);
    border-radius: 4px;
    overflow: hidden;
}

.matchup-winrate-fill {
    height: 100%;
    border-radius: 4px;
    background-color: var(--green);
}

.matchup-winrate-text {
    width: 50px;
    font-size: 0.75rem;
    color: var(--comment);
    font-family: var(--font-monospace);
}

.matchup-grid {
    display: grid;
    gap: 3px;
    font-size: 0.7rem;
    font-family: var(--font-monospace);
}

.matchup-grid-cell {
    padding: 6px;
    text-align: center;
    border-radius: 4px;
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
}

.matchup-grid-header {
    font-weight: 600;
    color: var(--comment);
    font-size: 0.65rem;
}

/* ── Palace: Language Room ── */
.vocab-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.vocab-table th,
.vocab-table td {
    padding: 10px 14px;
    border: 1px solid var(--bg_highlight);
    text-align: left;
}

.vocab-table th {
    background-color: var(--background-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--comment);
}

.vocab-table tr:nth-child(even) {
    background-color: rgba(var(--bg_highlight_x), 0.3);
}

.vocab-char {
    font-size: 1.2rem;
    font-weight: 600;
}

/* ── Palace: Drill ── */
.drill-card {
    background-color: var(--background-secondary);
    border: 1px solid var(--bg_highlight);
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.drill-prompt {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text-primary);
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.drill-choices {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
}

.drill-choice {
    padding: 14px 20px;
    border: 2px solid var(--bg_highlight);
    border-radius: 8px;
    background-color: var(--background-primary);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--default-font);
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.drill-choice:hover {
    border-color: var(--blue);
    background-color: var(--bg_highlight);
}

.drill-choice.correct {
    border-color: var(--green);
    background-color: rgba(var(--green_x), 0.15);
}

.drill-choice.wrong {
    border-color: var(--red);
    background-color: rgba(var(--red_x), 0.15);
}

.drill-input-row {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 16px;
}

.drill-input {
    padding: 12px 20px;
    font-size: 1.1rem;
    text-align: center;
    background-color: var(--background-primary);
    border: 2px solid var(--bg_highlight);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--default-font);
    width: 260px;
}

.drill-input:focus {
    outline: none;
    border-color: var(--blue);
}

.drill-input.correct { border-color: var(--green); }
.drill-input.wrong { border-color: var(--red); }

.drill-feedback {
    font-size: 0.9rem;
    margin-top: 12px;
    min-height: 24px;
}

.drill-mode-selector {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.drill-mode-btn {
    padding: 8px 16px;
    border: 1px solid var(--bg_highlight);
    border-radius: 6px;
    background: none;
    color: var(--comment);
    font-family: var(--default-font);
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease;
}

.drill-mode-btn:hover {
    border-color: var(--blue);
    color: var(--text-primary);
}

.drill-mode-btn.active {
    border-color: var(--blue);
    background-color: rgba(var(--blue_x), 0.15);
    color: var(--blue);
}

/* ── Sidebar: Section Headers ── */
.sidebar-section-header {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--comment);
    padding: 12px 10px 4px;
    margin-top: 4px;
    border-top: 1px solid var(--bg_highlight);
}

.sidebar-section-header:first-of-type {
    margin-top: 0;
    border-top: none;
}

/* ── Responsive ── */
@media (max-width: 1150px) {
    .sidebar {
        width: 100%;
        height: auto;
        padding: 20px;
        position: absolute;
        top: 0;
        left: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        border-right: none;
        border-bottom: 1px solid var(--bg_highlight);
    }

    .sidebar h1 {
        margin-top: 50px;
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .burger-menu {
        display: block;
    }

    .main-content {
        padding: 20px 16px;
        margin-top: 50px;
    }

    .post-card {
        padding: 14px 16px;
    }

    .socials-list {
        gap: 8px;
    }

    /* Palace: Mobile */
    .palace-content {
        max-width: 100%;
    }

    .palace-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .palace-stat {
        padding: 12px;
    }

    .palace-rooms {
        grid-template-columns: 1fr;
    }

    .palace-section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .palace-summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .palace-rating-row {
        flex-direction: column;
        gap: 8px;
    }

    .palace-rate-btn {
        padding: 14px 20px;
        font-size: 0.95rem;
        width: 100%;
    }

    .palace-review-card {
        padding: 20px 16px;
    }

    .palace-review-title {
        font-size: 1.2rem;
    }

    .palace-form-row {
        flex-direction: column;
    }

    .palace-form-row .palace-input,
    .palace-form-row .palace-select {
        min-width: 100%;
    }

    .palace-modal {
        margin: 16px;
        max-width: calc(100% - 32px);
    }

    .palace-node-info {
        flex-wrap: wrap;
        gap: 4px;
    }

    .palace-node-title {
        width: 100%;
    }

    /* Drill: Mobile */
    .drill-card {
        padding: 24px 16px;
    }

    .drill-prompt {
        font-size: 1.8rem;
        min-height: 60px;
    }

    .drill-choices {
        grid-template-columns: 1fr;
    }

    .drill-choice {
        padding: 16px;
        font-size: 1.05rem;
    }

    .drill-input {
        width: 100%;
        font-size: 1.1rem;
    }

    .drill-input-row {
        flex-direction: column;
    }

    .drill-mode-selector {
        gap: 6px;
    }

    .drill-mode-btn {
        flex: 1;
        min-width: 0;
        text-align: center;
        padding: 10px 8px;
    }

    /* Matchup/Vocab: Mobile */
    .matchup-log,
    .vocab-table {
        font-size: 0.8rem;
    }

    .matchup-log th,
    .matchup-log td,
    .vocab-table th,
    .vocab-table td {
        padding: 8px 6px;
    }

    /* Showcase: Mobile */
    .showcase-top {
        flex-direction: column;
    }

    .showcase-heatmap {
        overflow-x: auto;
        padding-bottom: 4px;
    }

    /* Node editor grids */
    .palace-content [style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }

    .analytics-grid {
        grid-template-columns: 1fr !important;
    }
}

/* ── Analytics ── */
.analytics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 24px;
}

.analytics-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    font-family: var(--font-monospace);
}

.analytics-table th {
    text-align: left;
    color: var(--comment);
    font-weight: 500;
    padding: 6px 8px;
    border-bottom: 1px solid var(--bg_highlight);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.analytics-table td {
    padding: 5px 8px;
    border-bottom: 1px solid rgba(var(--bg_highlight_x), 0.5);
    color: var(--fg_dark);
}

.analytics-table tr:hover td {
    background: rgba(var(--bg_highlight_x), 0.3);
}

.analytics-table code {
    font-size: 0.75rem;
    color: var(--cyan);
}

.analytics-num {
    text-align: right;
    font-weight: 600;
    color: var(--blue);
}

.analytics-path {
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.analytics-ts {
    white-space: nowrap;
    color: var(--comment);
    font-size: 0.75rem;
}

.analytics-delete-btn {
    background: none;
    border: none;
    color: var(--comment);
    cursor: pointer;
    padding: 2px 6px;
    font-size: 0.7rem;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
}

.analytics-delete-btn:hover {
    color: var(--red);
    background: rgba(247, 118, 142, 0.1);
}

.analytics-input {
    background: var(--bg_dark2);
    border: 1px solid var(--bg_highlight);
    color: var(--fg);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-family: var(--font-monospace);
}

.analytics-input:focus {
    outline: none;
    border-color: var(--blue);
}