/* ==========================================================================
   Main Base & Layout Styles
   ========================================================================== */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg);
    color: var(--fg-1);
    font-family: var(--font-sans);
    line-height: 1.6;
    padding: 0 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* Accessible Focus Outline */
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
    outline: 2px solid var(--yellow);
    outline-offset: 3px;
}

.container {
    max-width: 880px;
    width: 100%;
    display: flex;
    flex-direction: column;
    padding: 2rem 0 1rem;
}

/* Terminal Cursor Blink */
.cursor-blink {
    display: inline-block;
    width: 7px;
    height: 13px;
    vertical-align: -1px;
    background-color: var(--yellow);
    animation: cursor-blink 1s step-end infinite;
    margin-left: 4px;
}

/* Top Nav & Contrast Switcher */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--fg-4);
    flex-wrap: wrap;
    gap: 0.8rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

/* Nav Status / Capsule Pill */
.nav-status, .nav-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    background: var(--bg-hard);
    border: 1px solid var(--bg-card);
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--green);
    white-space: nowrap;
    text-decoration: none;
    transition: all 0.15s ease;
}

.nav-pill {
    color: var(--fg-1);
}

.nav-pill:hover {
    border-color: var(--yellow);
    color: var(--yellow);
    transform: translateY(-1px);
}

.nav-pill.active {
    border-color: var(--aqua);
    color: var(--aqua);
}

.status-indicator {
    width: 7px;
    height: 7px;
    background-color: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--green);
}

.contrast-switcher {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--bg-hard);
    padding: 0.25rem;
    border-radius: 6px;
    border: 1px solid var(--bg-card);
}

.contrast-label {
    font-size: 0.75rem;
    padding: 0 0.4rem;
    color: var(--fg-4);
}

.contrast-btn {
    background: transparent;
    border: none;
    color: var(--fg-4);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.2rem 0.55rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.contrast-btn:hover {
    color: var(--fg-0);
}

.contrast-btn.active {
    background: var(--bg-card);
    color: var(--yellow);
    font-weight: bold;
}

/* Header */
header {
    margin-bottom: 1.8rem;
    border-bottom: 1px dashed var(--bg-hover);
    padding-bottom: 1.6rem;
}

.prompt-line {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--aqua);
    margin-bottom: 0.35rem;
}

.prompt-line .path { color: var(--fg-4); }
.prompt-line .cmd { color: var(--fg-0); }

h1 {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    color: var(--fg-0);
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 0.6rem;
    word-break: break-word;
}

h1 .accent {
    color: var(--orange);
}

.title-nowrap {
    white-space: nowrap;
}

.lead {
    font-size: 1.02rem;
    color: var(--fg-4);
    max-width: 680px;
}

/* Section Headings */
h2 {
    font-size: 1.25rem;
    color: var(--fg-0);
    font-family: var(--font-mono);
    margin: 1.8rem 0 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

h2::before {
    content: "λ";
    color: var(--aqua);
    font-weight: bold;
}

/* Footer */
footer {
    width: 100%;
    max-width: 880px;
    margin-top: 3.5rem;
    padding-top: 1.5rem;
    padding-bottom: 2rem;
    border-top: 1px solid var(--bg-card);
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray);
    font-family: var(--font-mono);
}

footer a {
    color: var(--fg-4);
    text-decoration: none;
}

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