:root {
    --bg-primary: #080b12;
    --bg-secondary: #101620;
    --bg-tertiary: #171f2b;
    --bg-panel: #0c111b;
    --text-primary: #d9e2ef;
    --text-secondary: #8ea0b8;
    --text-muted: #64748b;
    --text-accent: #64b5ff;
    --text-green: #7ee787;
    --text-yellow: #f2cc60;
    --border-color: #223047;
    --border-strong: #31425d;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
}

* {
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
}

body {
    background:
        radial-gradient(circle at top left, rgba(100, 181, 255, 0.12), transparent 28rem),
        linear-gradient(135deg, #070a10 0%, #0a1018 45%, #0a0d14 100%);
    color: var(--text-primary);
    font-family: var(--font-mono);
    line-height: 1.6;
    margin: 0 auto;
    padding: clamp(0.75rem, 3vw, 2rem);
    width: 100%;
    max-width: 1060px;
    min-height: 100vh;
    overflow-x: hidden;
    overflow-wrap: break-word;
}

main,
header,
footer,
section,
.container,
.terminal-window,
.terminal-body,
.terminal-card,
.output {
    max-width: 100%;
    min-width: 0;
}

p,
li,
h1,
h2,
h3,
h4,
a,
span,
strong {
    overflow-wrap: anywhere;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

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

header {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
    padding-bottom: 1.25rem;
}

h1,
h2,
h3,
h4 {
    color: var(--text-green);
    letter-spacing: 0;
}

h1 {
    font-size: clamp(1.55rem, 4vw, 2.35rem);
    line-height: 1.25;
}

p {
    margin: 0 0 1.1rem;
}

a {
    color: var(--text-accent);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 12px rgba(100, 181, 255, 0.45);
}

.container {
    margin: 0 auto;
}

.terminal-window {
    border: 1px solid var(--border-strong);
    border-radius: 8px;
    background: rgba(8, 11, 18, 0.88);
    box-shadow:
        0 24px 80px rgba(0, 0, 0, 0.42),
        0 0 0 1px rgba(255, 255, 255, 0.02) inset;
    overflow: hidden;
}

.terminal-titlebar {
    position: sticky;
    top: 0;
    z-index: 5;
    display: flex;
    align-items: center;
    min-height: 42px;
    padding: 0.5rem 0.8rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(23, 31, 43, 0.98), rgba(12, 17, 27, 0.98));
}

.window-controls {
    display: flex;
    gap: 0.45rem;
    flex: 0 0 auto;
}

.window-controls span {
    width: 0.72rem;
    height: 0.72rem;
    border-radius: 50%;
}

.window-controls span:nth-child(1) {
    background: #ff5f57;
}

.window-controls span:nth-child(2) {
    background: #ffbd2e;
}

.window-controls span:nth-child(3) {
    background: #28c840;
}

.terminal-body {
    padding: clamp(1rem, 3.5vw, 2rem);
    background:
        linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
        var(--bg-panel);
    background-size: 100% 32px;
}

.prompt {
    color: var(--text-green);
    font-weight: 700;
}

.prompt-path {
    color: var(--text-accent);
    min-width: 0;
}

.prompt-line {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0 0.35rem;
    max-width: 100%;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
}

.status-line {
    color: var(--text-secondary);
}

.ascii-divider {
    color: var(--text-secondary);
    margin: 1rem 0;
    user-select: none;
    max-width: 100%;
    overflow: hidden;
    white-space: nowrap;
}

.menu-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
}

.menu-item {
    display: grid;
    grid-template-columns: auto minmax(10rem, 17rem) minmax(0, 1fr);
    gap: 0.75rem;
    align-items: baseline;
    padding: 0.68rem 0;
    border-bottom: 1px solid rgba(34, 48, 71, 0.72);
}

.menu-item:hover {
    background: rgba(100, 181, 255, 0.035);
}

.file-mode {
    color: var(--text-secondary);
    white-space: nowrap;
}

.menu-item > span:last-child {
    color: var(--text-secondary);
}

.external-section {
    margin-top: 1.75rem;
}

.terminal-card {
    background: linear-gradient(180deg, rgba(16, 22, 32, 0.96), rgba(10, 15, 24, 0.96));
    border: 1px solid var(--border-strong);
    border-radius: 6px;
    padding: clamp(1rem, 3vw, 1.25rem);
    margin-bottom: 1.25rem;
}

.terminal-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.86rem;
}

textarea,
input[type="text"],
input[type="number"],
select {
    width: 100%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-green);
    font-family: var(--font-mono);
    padding: 0.8rem;
    box-sizing: border-box;
    margin-bottom: 0.75rem;
}

textarea {
    min-height: 10rem;
    resize: vertical;
}

button {
    background: transparent;
    color: var(--text-yellow);
    border: 1px solid var(--text-yellow);
    border-radius: 4px;
    padding: 0.7rem 1rem;
    cursor: pointer;
    font-family: var(--font-mono);
    transition: all 0.2s ease;
}

button:hover {
    background: var(--text-yellow);
    color: var(--bg-primary);
}

.output {
    margin-top: 1.25rem;
    padding: 1rem;
    background-color: rgba(0, 0, 0, 0.45);
    border-left: 3px solid var(--text-green);
    border-radius: 0 6px 6px 0;
    white-space: pre-wrap;
    color: var(--text-primary);
}

.cursor {
    display: inline-block;
    width: 10px;
    height: 1.2em;
    background-color: var(--text-primary);
    margin-left: 5px;
    vertical-align: middle;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    from, to { opacity: 1; }
    50% { opacity: 0; }
}

footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.8rem;
}

@media (max-width: 760px) {
    .menu-item {
        grid-template-columns: 1fr;
        gap: 0.12rem;
    }

    .file-mode {
        font-size: 0.82rem;
    }
}

@media (max-width: 480px) {
    body {
        line-height: 1.65;
    }
}