/* --- Shared Theme Variables ------------------------------------------------ */
:root {
    --bg-color: #f0f0f0;
    --dot-color: #cacaca;
    --text-color: #333333;
    --block-bg: #ffffff;
    --block-border: #333333;
    --header-bg: #f0f0f0;
    --header-border: #333333;
    --button-bg: #dddddd;
    --button-hover: #cccccc;
    --link-color: #0077cc;
    --meta-color: #555555;
    --shadow-color: rgba(0, 0, 0, 0.2);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #111111;
        --dot-color: #333333;
        --text-color: #f0f0f0;
        --block-bg: #1e1e1e;
        --block-border: #555555;
        --header-bg: #1a1a1a;
        --header-border: #444444;
        --button-bg: #333333;
        --button-hover: #444444;
        --link-color: #66b3ff;
        --meta-color: #999999;
        --shadow-color: rgba(0, 0, 0, 0.4);
    }
}

html.theme-light {
    --bg-color: #f0f0f0;
    --dot-color: #cacaca;
    --text-color: #333333;
    --block-bg: #ffffff;
    --block-border: #333333;
    --header-bg: #f0f0f0;
    --header-border: #333333;
    --button-bg: #dddddd;
    --button-hover: #cccccc;
    --link-color: #0077cc;
    --meta-color: #555555;
    --shadow-color: rgba(0, 0, 0, 0.2);
}

html.theme-dark {
    --bg-color: #111111;
    --dot-color: #333333;
    --text-color: #f0f0f0;
    --block-bg: #1e1e1e;
    --block-border: #555555;
    --header-bg: #1a1a1a;
    --header-border: #444444;
    --button-bg: #333333;
    --button-hover: #444444;
    --link-color: #66b3ff;
    --meta-color: #999999;
    --shadow-color: rgba(0, 0, 0, 0.4);
}

/* --- Base Layout ----------------------------------------------------------- */
* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family:
        ui-monospace, Menlo, Monaco, "Cascadia Mono", "Segoe UI Mono", "Roboto Mono", "Oxygen Mono", "Ubuntu Mono", "Source Code Pro", "Fira Mono", "Droid Sans Mono", "Consolas", "Courier New",
        monospace;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle, var(--dot-color) 1px, transparent 1px);
    background-size: 20px 20px;
    background-attachment: fixed;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
}

body ::selection {
    background-color: var(--text-color);
    color: var(--bg-color);
}

body ::-moz-selection {
    background-color: var(--text-color);
    color: var(--bg-color);
}

#app-shell {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

/* --- Header / Bookmark Bar ------------------------------------------------- */
#header-bar {
    height: 35px;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 5px 12px;
    flex-shrink: 0;
    gap: 12px;
}

#header-bar[hidden] {
    display: none;
}

.site-bar {
    height: 35px;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 12px;
    flex-shrink: 0;
    gap: 12px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
}

.site-footer {
    margin-top: auto;
    border-bottom: none;
    border-top: 1px solid var(--header-border);
}

.site-footer .button:last-child {
    margin-left: auto;
}

.site-brand {
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
}

.theme-toggle {
    margin-left: auto;
    white-space: nowrap;
}

#bookmark-strip {
    flex: 1;
    display: flex;
    align-items: center;
    overflow-x: hidden;
    overflow-y: hidden;
    gap: 8px;
}

.bookmark-link {
    background-color: var(--button-bg);
    border: 1px solid var(--block-border);
    color: var(--text-color);
    padding: 4px 10px;
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background-color 0.2s ease;
    font-size: 12px;
    font-family: inherit;
}

.bookmark-link:hover,
.bookmark-link:focus-visible {
    background-color: var(--button-hover);
    outline: none;
}

.bookmark-link .bookmark-favicon {
    width: 14px;
    height: 14px;
    object-fit: contain;
}

#bookmark-strip.scrolling {
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 4px;
    scrollbar-width: none;
}

#bookmark-strip.scrolling::-webkit-scrollbar {
    display: none;
}

#bookmark-menu-layer {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
}

#bookmark-menu-layer[aria-hidden="false"] {
    pointer-events: auto;
}

.bookmark-folder {
    position: relative;
}

.bookmark-trigger {
    background-color: var(--button-bg);
    border: 1px solid var(--block-border);
    color: var(--text-color);
    padding: 4px 10px;
    font-size: 12px;
    font-family: inherit;
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.bookmark-trigger::after {
    content: "▾";
    font-size: 10px;
    margin-left: 4px;
}

.bookmark-trigger:hover,
.bookmark-trigger:focus-visible {
    background-color: var(--button-hover);
    outline: none;
}

.bookmark-trigger:disabled {
    opacity: 0.5;
    cursor: default;
}

.bookmark-menu,
.bookmark-submenu {
    position: absolute;
    min-width: 100px;
    margin: 0;
    padding: 0;
    list-style: none;
    background-color: var(--block-bg);
    border: 1px solid var(--block-border);
    box-shadow: 6px 6px 0 var(--shadow-color);
    z-index: 20;
    display: block;
    pointer-events: auto;
    overflow-y: auto;
}

.bookmark-menu[hidden],
.bookmark-submenu[hidden] {
    display: none !important;
}

.bookmark-menu-item {
    position: relative;
    display: block;
}

.bookmark-menu-divider {
    height: 1px;
    margin: 6px 0;
    background-color: var(--block-border);
}

.bookmark-menu-link,
.bookmark-menu-button {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    padding: 6px 12px;
    width: 100%;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 12px;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
}

.bookmark-menu-link:hover,
.bookmark-menu-link:focus-visible,
.bookmark-menu-button:hover,
.bookmark-menu-button:focus-visible {
    background-color: var(--button-hover);
    outline: none;
}

.bookmark-menu-button {
    text-align: left;
}

.bookmark-overflow-hidden {
    display: none !important;
}

.bookmark-overflow-trigger::after {
    content: none;
}

.bookmark-menu-link .bookmark-favicon {
    width: 14px;
    height: 14px;
    flex: 0 0 14px;
    object-fit: contain;
}

.bookmark-menu-link span,
.bookmark-menu-button span:first-child {
    flex: 1;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bookmark-menu-button:disabled {
    cursor: default;
    opacity: 0.5;
}

.bookmark-menu-arrow {
    font-size: 10px;
    margin-left: auto;
}

.button {
    background-color: var(--button-bg);
    border: 1px solid var(--block-border);
    color: var(--text-color);
    font-family: inherit;
    font-size: 12px;
    padding: 4px 10px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    text-decoration: none;
    line-height: inherit;
}

.button:hover,
.button:focus-visible {
    background-color: var(--button-hover);
    outline: none;
}

/* --- Main Content ---------------------------------------------------------- */
#content-area {
    flex: 1;
    padding: 24px;
}

body[data-page="new-tab"] #content-area {
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

body[data-page="new-tab"] #content-area.is-scroll-y {
    align-items: flex-start;
    overflow-y: auto;
}

body[data-page="new-tab"] #content-area.is-scroll-x {
    justify-content: flex-start;
    overflow-x: auto;
}

body[data-page="settings"] #content-area {
    display: block;
    overflow-y: auto;
}

body[data-page="new-tab"] #blocks-container {
    --tile-size: 260px;
    --tile-gap: 18px;
    --info-height: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--tile-gap);
    padding: 10px 0;
}

body[data-page="settings"] #blocks-container {
    width: 100%;
}

#blocks-container.is-empty {
    display: flex;
    align-items: center;
    justify-content: center;
}

#blocks-container.is-empty .block-empty {
    max-width: 320px;
}
.block-row {
    display: flex;
    gap: var(--tile-gap);
    justify-content: center;
    align-items: flex-start;
}

.block-card {
    background-color: var(--block-bg);
    border: 1px solid var(--block-border);
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: var(--tile-size);
    min-height: calc(var(--tile-size) + var(--info-height));
    padding: 12px;
    box-shadow: 8px 8px 0 var(--shadow-color);
}

.block-main {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: var(--tile-size);
    overflow: hidden;
    background-color: var(--bg-color);
    border: 1px solid var(--block-border);
}

.block-main img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    /* border: 1px solid var(--block-border); */
    background-color: var(--block-bg);
}

.block-main .text-tile {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 24px;
    font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
    font-size: 1.2rem;
    line-height: 1.4;
    text-align: left;
    /* border: 1px solid var(--block-border); */
    background-color: var(--block-bg);
    overflow: auto;
}

.block-main .tile-text-content {
    width: 100%;
    white-space: pre-wrap;
    word-break: break-word;
}

.block-main .tile-chip {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--block-border);
    font-size: 0.85rem;
    text-align: center;
    background-color: var(--block-bg);
    width: 100%;
    height: 100%;
    aspect-ratio: 1 / 1;
    line-height: 1.2;
    white-space: pre-wrap;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-word;
    padding: 16px;
}

.block-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.block-title {
    font-size: var(--block-title-size, 1rem);
    font-weight: 600;
    margin: 0;
    display: -webkit-box;
    line-clamp: 2;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.block-description {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-color);
    opacity: 0.9;
    display: -webkit-box;
    line-clamp: 3;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.block-description.is-empty {
    display: none;
}

.block-meta-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--block-meta-size, 0.7rem);
    color: var(--meta-color);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.block-meta-row a {
    color: inherit;
    text-decoration: none;
}

.block-meta-row a:hover,
.block-meta-row a:focus-visible {
    text-decoration: underline;
    outline: none;
}

.block-empty {
    border: 1px dashed var(--block-border);
    padding: 18px;
    text-align: center;
    font-size: 0.9rem;
    align-self: center;
    justify-self: center;
}

/* --- Footer ---------------------------------------------------------------- */
#footer-bar {
    height: 35px;
    background-color: var(--header-bg);
    border-top: 1px solid var(--header-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 12px;
    flex-shrink: 0;
    gap: 12px;
}

#footer-bar[hidden] {
    display: none;
}

/* --- Settings Form --------------------------------------------------------- */
form.settings-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
    max-width: 880px;
    margin: 40px auto 60px;
    padding: 0 20px 80px;
    font-size: 1rem;
    line-height: 1.6;
}

form.settings-form fieldset {
    border: 1px solid var(--block-border);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-color: var(--block-bg);
}

form.settings-form legend {
    font-weight: 600;
    padding: 0 6px;
}

.settings-about {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.settings-about legend {
    font-size: 1.1rem;
    font-weight: 600;
}

.settings-about h3 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
}

.settings-about h4 {
    margin: 12px 0 4px;
    font-size: 1rem;
    font-weight: 600;
}

.settings-about p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

.settings-about a {
    color: var(--link-color);
    text-decoration: underline;
}

.settings-about code {
    font-size: 0.9rem;
    background: var(--button-bg);
    padding: 0.125rem 0.3rem;
}

label.setting-label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 1rem;
}

p.setting-label {
    margin: 12px 0 4px;
    font-size: 1rem;
    font-weight: 600;
}

label.inline {
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
}

textarea,
input[type="text"],
input[type="number"],
select {
    font-family: inherit;
    font-size: 1rem;
    padding: 6px 8px;
    border: 1px solid var(--block-border);
    background-color: var(--block-bg);
    color: var(--text-color);
    resize: vertical;
}

textarea {
    min-height: 80px;
}

.slider-field {
    display: flex;
    align-items: center;
    gap: 12px;
}

.slider-field input[type="range"] {
    flex: 1;
    accent-color: var(--block-border);
}

.slider-field output {
    min-width: 36px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 8px 16px;
}

.theme-options {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.toggle-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 8px;
}

.settings-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.settings-actions--compact {
    gap: 8px;
}

.settings-actions--compact .notice {
    flex: 1 1 200px;
}

.notice {
    color: var(--meta-color);
    font-size: 75rem;
}

/* --- Utility --------------------------------------------------------------- */
.hidden {
    display: none !important;
}

.status-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    padding: 4px 12px;
}

.status-button[disabled] {
    opacity: 0.6;
    cursor: default;
    pointer-events: none;
}

.status-button[aria-disabled="true"],
#open-settings[aria-disabled="true"] {
    opacity: 0.7;
    cursor: default;
    pointer-events: none;
}

/* --- Scrollbar Styling ----------------------------------------------------- */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--block-border) var(--bg-color);
}

*::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

*::-webkit-scrollbar-track {
    background: var(--bg-color);
}

*::-webkit-scrollbar-thumb {
    background: var(--block-border);
}

*::-webkit-scrollbar-thumb:hover {
    background: var(--text-color);
}

@media (max-width: 720px) {
    #header-bar,
    #footer-bar,
    .site-bar {
        padding: 5px 8px;
    }

    #content-area {
        padding: 16px;

        overflow-y: auto;
    }

    #blocks-container {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));

        gap: 12px;
    }

    .block-card {
        padding: 10px;
    }

    .block-main .text-tile {
        padding: 16px;

        font-size: 1.4rem;
    }

    .settings-actions {
        flex-direction: column;

        align-items: flex-start;
    }
}

/* --- Landing Page --------------------------------------------------------- */
.landing-page {
    height: 100%;
    min-height: 100vh;
    overflow: hidden;
}

.landing-page .site-shell {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 100%;
}

.landing-page .site-header,
.landing-page .site-footer {
    position: absolute;
    left: 0;
    right: 0;
}

.landing-page .site-header {
    top: 0;
    z-index: 10;
}

.landing-page .site-footer {
    bottom: 0;
    border-bottom: none;
    border-top: 1px solid var(--header-border);
    z-index: 10;
    margin: 0;
}

.landing-page .site-main {
    position: absolute;
    top: 35px;
    bottom: 35px;
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    width: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}

.hero {
    width: min(1120px, 92vw);
    margin: auto;
    display: flex;
    flex-direction: column;
    gap: 35px;
    padding: 35px 0;
    align-items: stretch;
}

.hero-columns {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(200px, auto);
    gap: 24px 35px;
    align-items: start;
    width: 100%;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
    max-width: 720px;
    width: 100%;
}

.hero-eyebrow {
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--meta-color);
    margin: 0;
}

.hero-title {
    margin: 0;
    font-size: clamp(2rem, 3vw, 3rem);
}

.hero-lede {
    margin: 0;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-color);
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-direction: column;
}

.hero-cta {
    font-size: 1rem;
    padding: 12px 28px;
    width: clamp(200px, 18vw, 260px);
    text-align: center;
}

.hero-cta--secondary {
    background-color: transparent;
    border-style: dashed;
}

.hero-cta--secondary:hover,
.hero-cta--secondary:focus-visible {
    background-color: var(--button-bg);
    border-style: solid;
}

.hero-preview {
    display: flex;
    justify-content: center;
    padding: 0;
    width: 100%;
}

.preview-shell {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

.preview-shell #app-shell {
    height: 100%;
}

.preview-shell #blocks-container {
    --tile-size: clamp(260px, 34vw, 520px);
    --block-title-size: 1rem;
    --block-meta-size: 0.7rem;
}

.browser-frame {
    width: 100%;
    max-width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 8px;
    background-color: var(--block-bg);
    border: 1px solid var(--block-border);
    box-shadow: 12px 12px 0 var(--shadow-color);
}

.browser-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 0 8px;
    background-color: var(--header-bg);
    border: 1px solid var(--header-border);
    height: 35px;
}

.browser-controls {
    display: inline-flex;
    gap: 6px;
}

.browser-controls span {
    width: 12px;
    height: 12px;
    border: 1px solid var(--block-border);
    background-color: var(--button-bg);
    display: inline-block;
}

.browser-address {
    flex: 1;
    text-align: center;
    font-size: 0.9rem;
    color: var(--meta-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.browser-content {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--bg-color);
    border: 1px solid var(--block-border);
    overflow: hidden;
    display: flex;
}

.browser-content,
.browser-content * {
    user-select: none;
    -webkit-user-select: none;
}

.browser-content #app-shell {
    width: 100%;
    height: 100%;
}

.browser-content #content-area {
    padding: 24px;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle, var(--dot-color) 1px, transparent 1px);
    background-size: 20px 20px;
    background-attachment: local;
}

@media (max-width: 960px) {
    .hero-columns {
        grid-template-columns: minmax(0, 1fr);
        gap: 24px;
    }

    .hero-actions {
        flex-direction: row;
    }

    .hero-cta {
        width: 100%;
    }

    .browser-content {
        aspect-ratio: 16 / 10;
    }
}

@media (max-width: 720px) {
    .browser-content {
        aspect-ratio: 4 / 3;
    }
}

@media (min-width: 1440px) {
    .preview-shell #blocks-container {
        --tile-size: 520px;
    }
}