/*
 * git merge — Page-Specific Styles
 * Extends global.css
 */

/* ============================================
   PARTICLE BACKGROUND
   ============================================ */
.page-home .site-header {
    padding: calc(2.5rem + env(safe-area-inset-top)) var(--container-padding) 0.5rem;
}

.page-home .site-tagline {
    margin-bottom: 0;
}

.page-home .container {
    padding-top: 8rem;
}

.particle-bg {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 43rem;
    height: 250px;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    background: #000;
}

.particle-bg canvas {
    display: block;
    width: 100%;
    height: 100%;
    background: #000;
}

/* ============================================
   DIGEST DATE HEADER
   ============================================ */
.digest-date {
    font-family: 'Andale Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.digest-date:empty {
    display: none;
}

.page-home:not(.digest-ready) .digest-update-time {
    visibility: hidden;
}

.digest-update-time[hidden] {
    display: none;
}

.digest-update-time {
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 400;
    font-size: 0.65rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* ============================================
   DIGEST SOURCES (bottom of page)
   ============================================ */
.digest-sources {
    font-family: 'Andale Mono', monospace;
    font-size: 0.7rem;
    color: var(--text-inactive);
    margin-top: 1.5rem;
    margin-bottom: 0;
}

/* ============================================
   DIGEST SECTIONS
   ============================================ */
.digest-section {
    margin-bottom: 2.5rem;
}

/* Section title: IBM Plex Mono, lowercase + small caps, horizontal line */
.digest-section-title {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.95rem;
    color: #ffffff;
    text-transform: lowercase;
    font-variant: small-caps;
    word-spacing: var(--mono-word-spacing);
    letter-spacing: 0.1em;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.digest-section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

/* Section item list */
.digest-section-list {
    list-style: none;
    padding-left: 0;
}

.digest-item {
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 300;
    font-size: 0.9rem;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 1rem;
    max-width: 70ch;
}

.digest-item b {
    font-weight: 400;
    color: var(--text-primary);
    transition: color var(--transition-base);
}

.digest-item .digest-why-it-matters {
    margin-top: 1.5rem;
}

.digest-signal-labels {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.35rem;
}

.digest-signal-label {
    font-family: 'Andale Mono', monospace;
    font-size: 0.6rem;
    line-height: 1;
    color: var(--text-inactive);
    letter-spacing: 0.05em;
}

.digest-signal-label + .digest-signal-label::before {
    content: '·';
    margin-right: 0.4rem;
}

/* When the headline link is hovered, the <b> inside must also turn black.
   Guarded with @media (hover: hover) to prevent stuck black-text on touch devices. */
@media (hover: hover) {
    .container li.digest-item a:hover b {
        color: black;
        transition: color var(--transition-base);
    }
}

/* Citation links — dimmer, brighter on hover, no underline */
.container li.digest-item sup a {
    font-family: 'Andale Mono', monospace;
    font-size: 0.7rem;
    color: var(--text-inactive);
    text-decoration: none;
    background-image: none;
    transition: color 0.2s;
    position: static;
    display: inline;
}

.container li.digest-item sup a::after {
    display: none !important;
}

.container li.digest-item sup a:hover {
    color: var(--text-primary);
}

/* ============================================
   REFERENCES
   ============================================ */
.digest-references {
    padding-top: 0.5rem;
}

.digest-references ol {
    padding-left: 1.5rem;
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.8rem;
    color: var(--text-body);
    line-height: 1.8;
}

.digest-reference-type {
    display: inline-block;
    margin-left: 0.65rem;
    font-family: 'Andale Mono', monospace;
    font-size: 0.52rem;
    color: var(--text-inactive);
    letter-spacing: 0.06em;
    line-height: 1;
    vertical-align: 0.08rem;
}

/* Reference links — dimmer, brighter on hover, no animated underline */
.container .digest-references li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
    position: static;
    display: inline;
}

.container .digest-references li a::after {
    display: none !important;
}

.container .digest-references li a:hover {
    color: var(--text-primary);
}

/* ============================================
   DIGEST DATE NAV (previous / next)
   ============================================ */
.digest-date-nav {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-top: 2.5rem;
}

.digest-date-nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    background-image: none;
}

.digest-date-nav-link::after {
    display: none !important;
}

.digest-date-nav-link--next {
    margin-left: auto;
    text-align: right;
}

.digest-date-nav-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.digest-date-nav-label {
    font-family: 'Andale Mono', monospace;
    font-size: 0.65rem;
    color: var(--text-inactive);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    line-height: 1;
}

.digest-date-nav-date {
    font-family: 'Andale Mono', monospace;
    font-size: 0.75rem;
    line-height: 1.2;
    color: var(--text-secondary);
}

.digest-date-nav-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--text-secondary);
    transition: color var(--dur-fast) var(--ease-out);
}

.digest-date-nav-link:hover svg {
    color: var(--text-primary);
}

.digest-date-nav-spacer {
    flex: 1;
}

/* ============================================
   FOOTER NAV BUTTON (Calendar)
   ============================================ */
.footer-nav-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    padding: 0;
}

.footer-nav-btn:hover {
    color: var(--text-primary);
}

/* Digest sources — dimmer, brighter on hover, no animated underline */
.container .digest-sources {
    color: var(--text-inactive);
}

.container .digest-sources a {
    color: var(--text-inactive);
    text-decoration: none;
    background-image: none;
    transition: color 0.2s;
    position: static;
    display: inline;
}

.container .digest-sources a::after {
    display: none !important;
}

.container .digest-sources a:hover {
    color: var(--text-primary);
}

/* ============================================
   LINK HOVER EFFECT (body copy only, from mb-2025 design system)
   Animated underline + fill only on hover-capable devices.
   Touch devices get a static underline, no fill animation.
   ============================================ */
.container p:not(.digest-sources) a,
.container li.digest-item a,
.container .about-author a {
    color: var(--text-primary);
    text-decoration: none;
    display: inline;
    background-image: linear-gradient(to top, white var(--u, 0%), white var(--u, 0%));
    background-repeat: no-repeat;
    background-position: 0 100%;
    background-size: 100% 1px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

@media (hover: hover) {
    .container p:not(.digest-sources) a,
    .container li.digest-item a,
    .container .about-author a {
        transition: background-size 0.2s, color var(--transition-base);
    }

    .container p:not(.digest-sources) a:hover,
    .container li.digest-item a:hover,
    .container .about-author a:hover {
        color: black;
        background-size: 100% 100%;
    }

    .digest-headline-link:hover,
    .digest-headline-link:hover b {
        color: black !important;
    }
}

/* On touch devices, prevent stuck :hover states from making links
   invisible (black text on black fill). Reset color and background
   size to their non-hover defaults after any :hover is applied. */
@media (hover: none) {
    .container p:not(.digest-sources) a,
    .container li.digest-item a,
    .container .about-author a {
        color: var(--text-primary) !important;
        background-size: 100% 1px !important;
    }

    .container p:not(.digest-sources) a:hover,
    .container li.digest-item a:hover,
    .container .about-author a:hover {
        color: var(--text-primary) !important;
        background-size: 100% 1px !important;
    }
}

   ABOUT PAGE
   ============================================ */
.about-section {
    margin-bottom: 2.5rem;
}

.about-section ol {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.9rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-body);
    padding-left: 1.25rem;
    margin: 0.75rem 0 0;
}

.about-section ol li {
    margin-bottom: 0.5rem;
}

.about-section ol li:last-child {
    margin-bottom: 0;
}

.about-notifications-toggle {
    margin: 1rem 0;
}

/* Push confirmation dialog — ported from mb-apod */
.push-confirm {
    position: fixed;
    left: 50%;
    bottom: 8.5rem;
    z-index: 60;
    width: min(22rem, calc(100vw - 32px));
    transform: translateX(-50%);
}

.push-confirm[hidden] {
    display: none;
}

.push-confirm-panel {
    padding: 1rem 1.1rem;
    border: 1px solid var(--border-color, #333);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.86);
    color: #fff;
    text-align: center;
    backdrop-filter: blur(8px);
    box-shadow: 0 14px 44px rgba(0, 0, 0, 0.45);
}

.push-confirm-text {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.4;
    color: #fff;
}

.push-confirm-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.85rem;
}

.push-confirm-action {
    font-family: 'Andale Mono', monospace;
    font-size: 0.78rem;
    font-weight: 300;
    color: #999;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.15s ease-out;
}

.push-confirm-action:hover,
.push-confirm-action:focus-visible {
    color: #fff;
}

.about-push-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.9rem;
    cursor: pointer;
}

.about-push-toggle:hover {
    border-color: var(--text-secondary);
}

.about-push-toggle:disabled {
    opacity: 0.5;
    cursor: default;
}

.about-push-toggle svg {
    flex-shrink: 0;
}

@media (hover: none) {
    #keyboard-shortcuts {
        display: none;
    }
}

.keyboard-shortcuts-list {
    margin: 1.25rem 0 0;
}

.keyboard-shortcuts-list dt {
    display: flex;
    gap: 0.35rem;
    margin-top: 1rem;
}

.keyboard-shortcuts-list dt:first-child {
    margin-top: 0;
}

.keyboard-shortcuts-list dd {
    margin: 0.35rem 0 0;
    color: var(--text-body);
}

.keyboard-shortcuts-list kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 34px;
    padding: 0 0.35rem;
    font-family: 'Andale Mono', monospace;
    font-size: 0.78rem;
    color: var(--text-secondary);
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    line-height: 1;
    letter-spacing: 0.02em;
}

.keyboard-shortcuts-or {
    align-self: center;
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ============================================
   CALENDAR MODAL
   ============================================ */
.calendar-backdrop {
    z-index: 40;
    transition: none;
}

.calendar-modal {
    z-index: 45;
    padding-top: calc(var(--fixed-corner-top) + 56px);
    padding-bottom: calc(var(--fixed-corner-top) + 56px);
    padding-inline: 1.5rem;
}

@media (min-width: 480px) {
    .calendar-modal {
        padding-inline: 1rem;
    }
}

body.calendar-modal-open .site-header-info {
    visibility: hidden;
    pointer-events: none;
}

.calendar-panel {
    width: min(100%, 26rem);
    max-width: 26rem;
}

.calendar-widget {
    margin-top: 4px;
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 16px;
}

.calendar-month-label {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-body);
    letter-spacing: -0.2px;
}

.calendar-grid {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-height: calc(28px + 6 * 34px + 6 * 2px);
}

.cal-row {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.cal-dow {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    font-family: 'Andale Mono', monospace;
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.cal-empty {
    height: 34px;
}

.cal-day {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 34px;
    width: 100%;
    font-family: 'Andale Mono', monospace;
    font-size: 0.78rem;
    color: var(--text-secondary);
    background: none;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    transition:
        color var(--dur-fast) var(--ease-out),
        background var(--dur-fast) var(--ease-out),
        border-color var(--dur-fast) var(--ease-out);
    padding: 0;
    line-height: 1;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.cal-day:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
    border-color: var(--border-hover);
}

.cal-day:active {
    background: rgba(255, 255, 255, 0.14);
}

.cal-day--today::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--text-secondary);
    pointer-events: none;
}

.cal-day--current {
    color: var(--text-primary);
    background: none;
    border-color: var(--border-color);
    cursor: default;
    pointer-events: none;
}

.cal-day--current:hover {
    color: var(--text-primary);
    background: none;
    border-color: var(--border-color);
}

.cal-day--disabled {
    color: rgba(255, 255, 255, 0.15);
    cursor: default;
    pointer-events: none;
}

.cal-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition:
        color var(--dur-fast) var(--ease-out),
        border-color var(--dur-fast) var(--ease-out),
        background var(--dur-fast) var(--ease-out);
    padding: 0;
    flex-shrink: 0;
}

.cal-nav-btn:hover:not(:disabled) {
    color: var(--text-primary);
    border-color: var(--border-hover);
    background: var(--surface-hover);
}

.cal-nav-btn:disabled {
    opacity: 0.25;
    cursor: default;
}

/* ============================================
   LOADING / EMPTY STATES
   ============================================ */
#digest-loading {
    display: none;
}

.digest-empty p {
    color: var(--text-secondary);
    font-style: italic;
}

.digest-publishing p {
    color: var(--text-secondary);
    font-style: italic;
}

/* ============================================
   SEARCH (unchanged from original)
   ============================================ */
.search-container {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-input {
    width: 100%;
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 300;
    font-size: 1rem;
    color: var(--text-primary);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 2rem 0.75rem 0.75rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.search-clear {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    display: none;
    line-height: 0;
}

.search-clear svg {
    fill: var(--text-inactive);
    width: 16px;
    height: 16px;
}

.search-clear:hover svg {
    fill: var(--text-secondary);
}

.search-input::placeholder {
    color: var(--text-inactive);
}

.search-container:focus-within {
    box-shadow: 0 0 0 2px black, 0 0 0 4px var(--text-primary);
    border-radius: 2px;
}

.search-container:focus-within .search-input {
    border-bottom-color: var(--text-secondary);
}

.search-prompt {
    color: var(--text-inactive);
    font-style: italic;
}

.search-result-count {
    font-family: 'Andale Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.search-result-item {
    border-top: 1px solid var(--border-color);
    padding: 1.25rem 0;
}

.search-result-item:last-child {
    border-bottom: 1px solid var(--border-color);
}

.search-result-date {
    font-family: 'Andale Mono', monospace;
    font-size: 0.7rem;
    color: var(--text-inactive);
    margin-bottom: 0.25rem;
}

.search-result-title {
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 300;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.search-result-title a {
    color: var(--text-primary);
}

.search-result-snippet {
    font-size: 0.85rem;
    color: var(--text-body);
    line-height: 1.6;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .digest-item {
        font-size: 0.85rem;
    }
}
/* ============================================
   AGENT PROMPT
   ============================================ */
.agent-prompt-intro {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 1rem;
}

.agent-prompt-lede {
    font-family: 'IBM Plex Sans', sans-serif;
    font-weight: 300;
    font-size: 0.9rem;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 0;
    max-width: 70ch;
}

.digest-markdown-copy {
    flex-shrink: 0;
    appearance: none;
    border: 0;
    padding: 0;
    background: none;
    color: var(--text-inactive);
    font-family: 'Andale Mono', monospace;
    font-size: 0.65rem;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 0.2rem;
}

.digest-markdown-copy:hover,
.digest-markdown-copy:focus-visible {
    color: var(--text-primary);
}

@media (max-width: 600px) {
    .digest-reference-type {
        display: block;
        margin: 0.15rem 0 0;
    }

    .agent-prompt-intro {
        display: block;
    }

    .digest-markdown-copy {
        margin-top: 0.75rem;
    }
}

.agent-prompt-block {
    position: relative;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    margin-bottom: 2rem;
}

.agent-prompt-pre {
    margin: 0;
    padding: 1.25rem 1.25rem 1.25rem 1.25rem;
    overflow-x: auto;
    max-height: 24rem;
    overflow-y: auto;
}

.agent-prompt-pre code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--text-body);
    white-space: pre-wrap;
    word-break: break-word;
}

/* Copy button — ported from mb-2025 design system (icon-only + tooltip) */
.agent-prompt-copy {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    z-index: 10;
    background-color: #2a2a2a;
    border: 1px solid #444;
    border-radius: 4px;
    padding: 0.5rem;
    cursor: pointer;
    opacity: 1;
    color: #e3e3e3;
    transition: opacity 0.2s, background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.agent-prompt-copy:hover {
    background-color: #3a3a3a;
}

.agent-prompt-copy:active {
    background-color: #4a4a4a;
    transform: scale(0.95);
}

.agent-prompt-copy svg {
    display: block;
    width: 18px;
    height: 18px;
    fill: currentColor;
    transition: fill 0.2s;
}

.agent-prompt-copy::before {
    content: 'Copy Prompt';
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 0.5rem;
    padding: 0.35rem 0.65rem;
    background-color: #1a1a1a;
    border: 1px solid #444;
    border-radius: 4px;
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.75rem;
    color: var(--text-primary);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 20;
}

.agent-prompt-copy::after {
    content: '';
    position: absolute;
    bottom: 100%;
    right: 0.75rem;
    margin-bottom: 0.25rem;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #444;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 21;
}

@media (hover: hover) {
    .agent-prompt-copy:hover::before,
    .agent-prompt-copy:hover::after {
        opacity: 1;
        visibility: visible;
    }
}

.agent-prompt-copy:focus-visible::before,
.agent-prompt-copy:focus-visible::after {
    opacity: 1;
    visibility: visible;
}

.agent-prompt-copy.copied {
    opacity: 1;
    background-color: #3a3a3a;
    border-color: #555;
}

.agent-prompt-copy.copied svg {
    fill: var(--text-primary);
}

.agent-prompt-copy.copied::before {
    content: 'Copied!';
    background-color: #1a1a1a;
    border-color: #555;
    color: var(--text-primary);
    opacity: 1;
    visibility: visible;
}

.agent-prompt-copy.copied::after {
    border-top-color: #555;
    opacity: 1;
    visibility: visible;
}

.agent-prompt-copy.fading-out::before,
.agent-prompt-copy.fading-out::after {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}