/*
 * CLIProxyAPI — 1980s Apple Editorial & Macintosh System 6 Stylesheet
 * Inspired by 1984 Apple Garamond print brochures, Snow White industrial design,
 * six-color rainbow stripes, and classic CLI phosphor CRT terminals.
 */

:root {
    --bg-paper: #F4F1EA;
    --bg-card: #FAF8F3;
    --bg-platinum: #E2DED3;
    --bg-platinum-dark: #C9C4B6;
    --ink-black: #111111;
    --ink-muted: #4A4740;
    --ink-subtle: #6E6A61;

    --apple-green: #61BB46;
    --apple-yellow: #FDB827;
    --apple-orange: #F5821F;
    --apple-red: #E03A3E;
    --apple-purple: #963D97;
    --apple-blue: #009DDC;

    --font-serif: "ITC Garamond Std", "Apple Garamond", "EB Garamond", "Baskerville", "Palatino", "Times New Roman", "Georgia", "Songti SC", "STSong", "Noto Serif SC", serif;
    --font-sys: "Chicago", "Geneva", "Monaco", "Menlo", "Consolas", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", monospace;
    --font-mono: "Monaco", "Menlo", "SF Mono", "Consolas", "Courier New", "PingFang SC", monospace;

    --shadow-hard: 4px 4px 0 var(--ink-black);
    --shadow-hard-lg: 6px 6px 0 var(--ink-black);
    --shadow-hard-sm: 2px 2px 0 var(--ink-black);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-paper);
    background-image: radial-gradient(rgba(17, 17, 17, 0.055) 1px, transparent 0);
    background-size: 16px 16px;
    color: var(--ink-black);
    font-family: var(--font-serif);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

/* Screen-reader utility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

a {
    color: var(--ink-black);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1.5px;
}

a:hover {
    background-color: var(--ink-black);
    color: var(--bg-card);
    text-decoration: none;
}

button {
    font-family: var(--font-sys);
    cursor: pointer;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 2px dashed var(--apple-blue);
    outline-offset: 2px;
}

/* Classic Macintosh System 6 top menu bar */
.menubar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px 12px;
    min-height: 36px;
    padding: 4px 16px;
    background-color: var(--bg-card);
    border-bottom: 2px solid var(--ink-black);
    font-family: var(--font-sys);
    font-size: 0.8125rem;
    user-select: none;
}

.menubar-left,
.menubar-nav,
.menubar-right {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
}

.brand-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: -0.01em;
}

.brand-logo-svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.menubar-link {
    padding: 5px 10px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid transparent;
}

.menubar-link:hover,
.menubar-link.is-active {
    background-color: var(--ink-black);
    color: var(--bg-card);
}

.menu-pill-btn {
    padding: 3px 8px;
    background-color: var(--bg-paper);
    color: var(--ink-black);
    border: 1.5px solid var(--ink-black);
    box-shadow: 1px 1px 0 var(--ink-black);
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1.2;
}

.menu-pill-btn:hover,
.menu-pill-btn.is-active {
    background-color: var(--ink-black);
    color: var(--bg-card);
}

.menu-pill-btn:active {
    transform: translate(1px, 1px);
    box-shadow: none;
}

.menubar-clock {
    padding: 3px 8px;
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    border-left: 1.5px solid var(--ink-black);
    margin-left: 4px;
}

/* Six-color Apple rainbow stripes */
.rainbow-bar {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    height: 8px;
    width: 100%;
    border-bottom: 2px solid var(--ink-black);
}

.rainbow-bar span:nth-child(1) {
    background-color: var(--apple-green);
}

.rainbow-bar span:nth-child(2) {
    background-color: var(--apple-yellow);
}

.rainbow-bar span:nth-child(3) {
    background-color: var(--apple-orange);
}

.rainbow-bar span:nth-child(4) {
    background-color: var(--apple-red);
}

.rainbow-bar span:nth-child(5) {
    background-color: var(--apple-purple);
}

.rainbow-bar span:nth-child(6) {
    background-color: var(--apple-blue);
}

/* Main container */
.page-shell {
    max-width: 1040px;
    margin: 0 auto;
    padding: 40px 24px 72px;
}

/* Editorial Hero Section */
.hero-section {
    text-align: center;
    margin-bottom: 56px;
}

.edition-badge {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 6px 8px;
    max-width: 100%;
    padding: 4px 12px;
    margin-bottom: 20px;
    background-color: var(--bg-card);
    border: 2px solid var(--ink-black);
    box-shadow: var(--shadow-hard-sm);
    font-family: var(--font-sys);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.hero-title {
    margin: 0 auto 10px;
    max-width: 900px;
    font-family: var(--font-serif);
    font-size: clamp(2.05rem, 6vw, 4.65rem);
    font-weight: 400;
    line-height: 1.06;
    letter-spacing: -0.035em;
    overflow-wrap: break-word;
}

.hero-subtitle {
    margin: 0 auto 22px;
    max-width: 780px;
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1.45rem, 3.2vw, 2.35rem);
    font-weight: 400;
    line-height: 1.18;
    letter-spacing: -0.02em;
    color: var(--ink-black);
}

.hero-lead {
    margin: 0 auto 28px;
    max-width: 680px;
    font-size: 1.125rem;
    line-height: 1.62;
    color: var(--ink-muted);
}

.hero-cta-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-bottom: 36px;
}

.retro-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background-color: var(--bg-card);
    color: var(--ink-black);
    border: 2px solid var(--ink-black);
    box-shadow: var(--shadow-hard);
    font-family: var(--font-sys);
    font-size: 0.85rem;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.08s ease, box-shadow 0.08s ease;
}

.retro-btn.is-primary {
    background-color: var(--ink-black);
    color: var(--bg-card);
}

.retro-btn:hover {
    background-color: var(--ink-black);
    color: var(--bg-card);
}

.retro-btn.is-primary:hover {
    background-color: var(--bg-platinum);
    color: var(--ink-black);
}

.retro-btn:active {
    transform: translate(2px, 2px);
    box-shadow: var(--shadow-hard-sm);
}

/* Snow White Platinum CRT Monitor Housing */
.crt-housing {
    text-align: left;
    max-width: 920px;
    margin: 0 auto;
    padding: 20px 20px 16px;
    background-color: var(--bg-platinum);
    border: 2px solid var(--ink-black);
    border-radius: 10px;
    box-shadow: var(--shadow-hard-lg);
}

.crt-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}

.preset-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.preset-btn,
.copy-cmd-btn {
    padding: 6px 11px;
    background-color: var(--bg-card);
    color: var(--ink-black);
    border: 2px solid var(--ink-black);
    box-shadow: var(--shadow-hard-sm);
    font-family: var(--font-sys);
    font-size: 0.75rem;
    font-weight: 700;
}

.preset-btn:hover,
.preset-btn.is-active,
.copy-cmd-btn:hover {
    background-color: var(--ink-black);
    color: var(--bg-card);
}

.preset-btn:active,
.copy-cmd-btn:active {
    transform: translate(1px, 1px);
    box-shadow: none;
}

.crt-bezel-recess {
    padding: 10px;
    background-color: var(--bg-platinum-dark);
    border: 2px solid var(--ink-black);
    border-radius: 6px;
}

/* Classic System 6 Window */
.sys6-window {
    background-color: var(--bg-card);
    border: 2px solid var(--ink-black);
    box-shadow: var(--shadow-hard);
}

.crt-bezel-recess .sys6-window {
    box-shadow: none;
}

.sys6-titlebar {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    padding: 0 10px;
    border-bottom: 2px solid var(--ink-black);
    background-image: repeating-linear-gradient(
        to bottom,
        var(--bg-card) 0px,
        var(--bg-card) 2px,
        var(--ink-black) 2px,
        var(--ink-black) 3px,
        var(--bg-card) 3px,
        var(--bg-card) 5px
    );
    font-family: var(--font-sys);
    font-size: 0.75rem;
    font-weight: 700;
}

.sys6-close-box {
    position: absolute;
    left: 8px;
    width: 13px;
    height: 13px;
    background-color: var(--bg-card);
    border: 2px solid var(--ink-black);
    box-shadow: 0 0 0 2px var(--bg-card);
}

.sys6-title-label {
    padding: 1px 10px;
    background-color: var(--bg-card);
    color: var(--ink-black);
    letter-spacing: 0.01em;
    max-width: calc(100% - 64px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* CRT Phosphor Screen & Themes */
.crt-screen {
    position: relative;
    padding: 16px 18px 14px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.52;
    overflow: hidden;
}

.crt-screen::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: repeating-linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0px,
        rgba(0, 0, 0, 0) 2px,
        rgba(0, 0, 0, 0.14) 2px,
        rgba(0, 0, 0, 0.14) 4px
    );
}

.crt-screen.theme-green {
    --term-bg: #0B120C;
    --term-fg: #33FF66;
    --term-muted: #22AD48;
    --term-accent: #A6FFBE;
    --term-warn: #FDB827;
    --term-glow: 0 0 6px rgba(51, 255, 102, 0.32);
    background-color: var(--term-bg);
    color: var(--term-fg);
    text-shadow: var(--term-glow);
}

.crt-screen.theme-amber {
    --term-bg: #140E05;
    --term-fg: #FFB000;
    --term-muted: #BA7E00;
    --term-accent: #FFE08A;
    --term-warn: #FF7B39;
    --term-glow: 0 0 6px rgba(255, 176, 0, 0.30);
    background-color: var(--term-bg);
    color: var(--term-fg);
    text-shadow: var(--term-glow);
}

.crt-screen.theme-mono {
    --term-bg: #FFFFFF;
    --term-fg: #111111;
    --term-muted: #4A4740;
    --term-accent: #000000;
    --term-warn: #111111;
    --term-glow: none;
    background-color: var(--term-bg);
    color: var(--term-fg);
    text-shadow: none;
}

.crt-screen.theme-mono::after {
    display: none;
}

.term-output {
    min-height: 250px;
    max-height: 340px;
    overflow-y: auto;
    overflow-x: auto;
    padding-bottom: 10px;
    white-space: pre-wrap;
    word-break: break-word;
}

.term-line {
    margin: 0 0 2px;
    white-space: pre-wrap;
}

.term-line.is-cmd {
    color: var(--term-accent);
    font-weight: 700;
}

.term-line.is-muted {
    color: var(--term-muted);
}

.term-line.is-warn {
    color: var(--term-warn);
}

.term-line.is-ascii {
    white-space: pre;
    line-height: 1.3;
}

.term-input-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px 8px;
    padding-top: 10px;
    border-top: 1px dashed var(--term-muted);
}

.term-prompt {
    flex-shrink: 0;
    color: var(--term-accent);
    font-weight: 700;
}

.term-input {
    flex: 1 1 165px;
    min-width: 0;
    background: transparent;
    border: none;
    color: var(--term-fg);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-shadow: var(--term-glow);
    caret-color: var(--term-fg);
}

.term-input::placeholder {
    color: var(--term-muted);
    opacity: 0.78;
}

.term-input:focus:not(:focus-visible) {
    outline: none;
}

.term-input:focus-visible {
    outline: 1px dashed var(--term-accent);
    outline-offset: 2px;
}

.term-cursor {
    display: inline-block;
    width: 8px;
    height: 15px;
    background-color: var(--term-fg);
    animation: phosphor-blink 1.05s steps(2, start) infinite;
    flex-shrink: 0;
}

@keyframes phosphor-blink {
    to {
        visibility: hidden;
    }
}

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

.crt-chin-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-sys);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.mini-rainbow-tag {
    display: inline-grid;
    grid-template-rows: repeat(6, 2.5px);
    width: 14px;
    border: 1px solid var(--ink-black);
}

.mini-rainbow-tag i:nth-child(1) {
    background: var(--apple-green);
}

.mini-rainbow-tag i:nth-child(2) {
    background: var(--apple-yellow);
}

.mini-rainbow-tag i:nth-child(3) {
    background: var(--apple-orange);
}

.mini-rainbow-tag i:nth-child(4) {
    background: var(--apple-red);
}

.mini-rainbow-tag i:nth-child(5) {
    background: var(--apple-purple);
}

.mini-rainbow-tag i:nth-child(6) {
    background: var(--apple-blue);
}

.term-quick-chips {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

.chip-btn {
    padding: 2px 7px;
    background-color: var(--bg-paper);
    color: var(--ink-black);
    border: 1.5px solid var(--ink-black);
    font-family: var(--font-mono);
    font-size: 0.72rem;
}

.chip-btn:hover {
    background-color: var(--ink-black);
    color: var(--bg-card);
}

.power-led-wrap {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-sys);
    font-size: 0.7rem;
}

.power-led {
    width: 8px;
    height: 8px;
    background-color: var(--apple-green);
    border: 1px solid var(--ink-black);
}

/* Section Headers */
.content-section {
    margin-top: 64px;
}

.section-header {
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--ink-black);
}

.section-kicker {
    display: block;
    margin-bottom: 6px;
    font-family: var(--font-sys);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-subtle);
}

.section-title {
    margin: 0 0 6px;
    font-family: var(--font-serif);
    font-size: clamp(1.85rem, 3.6vw, 2.75rem);
    font-weight: 400;
    letter-spacing: -0.028em;
    line-height: 1.12;
}

.section-desc {
    margin: 0;
    max-width: 720px;
    font-size: 1.05rem;
    color: var(--ink-muted);
}

/* ASCII Topology Window */
.topology-body {
    padding: 20px;
    background-color: var(--bg-card);
    overflow-x: auto;
}

.topology-pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.42;
    color: var(--ink-black);
    white-space: pre;
}

.topology-caption {
    margin: 14px 0 0;
    padding-top: 12px;
    border-top: 1px dashed var(--ink-black);
    font-family: var(--font-sys);
    font-size: 0.78rem;
    color: var(--ink-muted);
}

/* 2x3 CLI Feature Cards Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.feature-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 20px;
    background-color: var(--bg-card);
    border: 2px solid var(--ink-black);
    box-shadow: var(--shadow-hard);
}

.feature-icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin-bottom: 14px;
    background-color: var(--bg-paper);
    border: 2px solid var(--ink-black);
    box-shadow: var(--shadow-hard-sm);
}

.feature-card h3 {
    margin: 0 0 8px;
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.feature-card p {
    margin: 0 0 14px;
    flex: 1;
    font-size: 0.96rem;
    color: var(--ink-muted);
}

.feature-flag-code {
    display: block;
    padding: 6px 8px;
    background-color: var(--bg-paper);
    border: 1.5px solid var(--ink-black);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--ink-black);
    overflow-x: auto;
    white-space: nowrap;
}

/* Provider Monochrome Plaque Strip */
.provider-strip {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 12px;
    margin-top: 24px;
}

.provider-plaque {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
    padding: 12px 10px;
    background-color: var(--bg-card);
    border: 2px solid var(--ink-black);
    box-shadow: var(--shadow-hard-sm);
}

.provider-name {
    font-family: var(--font-sys);
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.provider-models {
    font-size: 0.8rem;
    line-height: 1.35;
    color: var(--ink-muted);
    margin-bottom: 8px;
}

.provider-flag {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    padding: 2px 5px;
    background-color: var(--bg-platinum);
    border: 1px solid var(--ink-black);
    align-self: flex-start;
}

/* Three-Step CLI Quick Start */
.quickstart-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.quickstart-step {
    display: flex;
    flex-direction: column;
    min-width: 0;
    background-color: var(--bg-card);
    border: 2px solid var(--ink-black);
    box-shadow: var(--shadow-hard);
}

.step-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background-color: var(--bg-platinum);
    border-bottom: 2px solid var(--ink-black);
    font-family: var(--font-sys);
    font-size: 0.76rem;
    font-weight: 700;
}

.step-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.step-title {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.step-desc {
    margin: 0;
    font-size: 0.92rem;
    color: var(--ink-muted);
    flex: 1;
}

.step-code-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-width: 0;
    padding: 8px 10px;
    background-color: #0B120C;
    color: #33FF66;
    border: 2px solid var(--ink-black);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.step-code-wrap code {
    min-width: 0;
    overflow-x: auto;
    white-space: nowrap;
}

.mini-copy-btn {
    flex-shrink: 0;
    padding: 3px 7px;
    background-color: var(--bg-card);
    color: var(--ink-black);
    border: 1.5px solid var(--ink-black);
    font-family: var(--font-sys);
    font-size: 0.68rem;
    font-weight: 700;
}

.mini-copy-btn:hover {
    background-color: var(--apple-yellow);
    color: var(--ink-black);
}

/* Editorial Footer */
.retro-footer {
    margin-top: 72px;
    background-color: var(--bg-card);
    border-top: 2px solid var(--ink-black);
}

.footer-inner {
    max-width: 1040px;
    margin: 0 auto;
    padding: 28px 24px 36px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.footer-colophon {
    font-size: 0.95rem;
    color: var(--ink-muted);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-family: var(--font-sys);
    font-size: 0.78rem;
    font-weight: 700;
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .provider-strip {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .quickstart-list {
        grid-template-columns: minmax(0, 1fr);
    }

    .menubar-nav {
        display: none;
    }
}

@media (max-width: 640px) {
    .page-shell {
        padding: 24px 14px 48px;
    }

    .crt-housing {
        padding: 12px;
    }

    .feature-grid,
    .provider-strip {
        grid-template-columns: minmax(0, 1fr);
    }

    .menubar {
        padding: 6px 10px;
        gap: 6px 8px;
    }

    .menu-pill-btn {
        padding: 2px 6px;
        font-size: 0.68rem;
    }

    .menubar-clock {
        display: none;
    }
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .term-cursor {
        animation: none;
    }

    .retro-btn {
        transition: none;
    }
}