/* ═══════════════════════════════════════════════════════════
   streamfu — Refined Terminal Aesthetic
   ═══════════════════════════════════════════════════════════ */

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ===== Theme Variables ===== */
[data-theme="dark"] {
    --color-bg: #0d1117;
    --color-bg-secondary: #161b22;
    --color-bg-code: #0d1117;
    --color-bg-elevated: #1c2128;
    --color-text: #c9d1d9;
    --color-text-secondary: #8b949e;
    --color-text-muted: #484f58;
    --color-border: #21262d;
    --color-border-bright: #30363d;
    --color-accent: #58a6ff;
    --color-accent-hover: #79c0ff;
    --color-accent-glow: rgba(88, 166, 255, 0.15);
    --color-green: #3fb950;
    --color-green-dim: rgba(63, 185, 80, 0.15);
    --color-cyan: #39d353;
    --color-card-bg: #161b22;
    --color-card-shadow: rgba(0, 0, 0, 0.4);
    --color-nav-bg: rgba(13, 17, 23, 0.85);
    --color-footer-bg: #0d1117;
    --color-inline-code-bg: #1c2128;
    --color-table-stripe: rgba(22, 27, 34, 0.5);
    --color-prompt: #3fb950;
    --color-cursor: #58a6ff;
    --color-selection: rgba(88, 166, 255, 0.2);
    --scanline-opacity: 0.03;
    --glow-strength: 0.5;
}

[data-theme="light"] {
    --color-bg: #f6f8fa;
    --color-bg-secondary: #ffffff;
    --color-bg-code: #f6f8fa;
    --color-bg-elevated: #ffffff;
    --color-text: #24292f;
    --color-text-secondary: #57606a;
    --color-text-muted: #8c959f;
    --color-border: #d0d7de;
    --color-border-bright: #bbc0c5;
    --color-accent: #0969da;
    --color-accent-hover: #0550ae;
    --color-accent-glow: rgba(9, 105, 218, 0.08);
    --color-green: #1a7f37;
    --color-green-dim: rgba(26, 127, 55, 0.08);
    --color-cyan: #1a7f37;
    --color-card-bg: #ffffff;
    --color-card-shadow: rgba(0, 0, 0, 0.06);
    --color-nav-bg: rgba(246, 248, 250, 0.9);
    --color-footer-bg: #f6f8fa;
    --color-inline-code-bg: #eff2f5;
    --color-table-stripe: rgba(246, 248, 250, 0.5);
    --color-prompt: #1a7f37;
    --color-cursor: #0969da;
    --color-selection: rgba(9, 105, 218, 0.1);
    --scanline-opacity: 0;
    --glow-strength: 0;
}

/* ===== Typography ===== */
body {
    font-family:
        "IBM Plex Mono", "JetBrains Mono", "Fira Code", "Consolas", monospace;
    font-size: 0.8rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition:
        background-color 0.3s ease,
        color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

code,
pre,
.highlight {
    font-family:
        "IBM Plex Mono", "JetBrains Mono", "Fira Code", "Consolas", monospace;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: "IBM Plex Mono", "JetBrains Mono", monospace;
    font-weight: 600;
    line-height: 1.3;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 1.875rem;
}

h2 {
    font-size: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

h2::before {
    content: "## ";
    color: var(--color-text-muted);
    font-weight: 400;
}

h3 {
    font-size: 1.2rem;
}

h3::before {
    content: "### ";
    color: var(--color-text-muted);
    font-weight: 400;
}

h4 {
    font-size: 1rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition:
        color 0.15s ease,
        text-shadow 0.15s ease;
}

a:hover {
    color: var(--color-accent-hover);
    text-decoration: underline;
    text-shadow: 0 0 8px var(--color-accent-glow);
}

strong {
    font-weight: 600;
    color: var(--color-text);
}

::selection {
    background: var(--color-selection);
}

/* ===== Layout ===== */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 2.5rem 2rem;
    min-height: calc(100vh - 56px - 100px);
}

.content {
    max-width: 100%;
}

.content > *:first-child {
    margin-top: 0;
}

/* ===== Scanline overlay (dark mode only) ===== */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, var(--scanline-opacity)) 2px,
        rgba(0, 0, 0, var(--scanline-opacity)) 4px
    );
}

/* ===== Navigation ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-nav-bg);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--color-border);
    transition:
        background-color 0.3s ease,
        border-color 0.3s ease;
}

.nav-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-logo:hover {
    color: var(--color-text);
    text-decoration: none;
}

.nav-logo-carousel {
    width: 24px;
    height: 24px;
    overflow: hidden;
    flex-shrink: 0;
}

.nav-logo-track {
    display: flex;
    width: 48px;
    animation: logo-scroll 3s linear infinite;
}

.nav-logo-img {
    height: 24px;
    width: 24px;
    flex-shrink: 0;
    display: block;
}

@keyframes logo-scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-24px);
    }
}

@keyframes blink-cursor {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-links > a,
.dropdown-toggle {
    font-family: "IBM Plex Mono", monospace;
    font-weight: 400;
    color: var(--color-text-secondary);
    text-decoration: none;
    padding: 0.35rem 0.65rem;
    transition:
        color 0.15s ease,
        background 0.15s ease;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    border-radius: 4px;
    letter-spacing: -0.01em;
}

.nav-links > a:hover,
.dropdown-toggle:hover {
    color: var(--color-text);
    background: var(--color-accent-glow);
    text-decoration: none;
}

.nav-links > a.active,
.dropdown-toggle.active {
    color: var(--color-accent);
    background: var(--color-accent-glow);
    text-decoration: none;
}

.nav-github {
    color: var(--color-text-secondary) !important;
    display: flex;
    align-items: center;
    padding: 0.35rem !important;
}

.nav-github:hover {
    color: var(--color-text) !important;
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.35rem);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-bright);
    border-radius: 6px;
    padding: 0.35rem;
    min-width: 16rem;
    box-shadow: 0 8px 24px var(--color-card-shadow);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 0.15s ease,
        visibility 0.15s ease,
        transform 0.15s ease;
    transform: translateX(-50%) translateY(4px);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 0.4rem 0.65rem;
    color: var(--color-text-secondary);
    border-radius: 3px;
    text-decoration: none;
    font-family: "IBM Plex Mono", monospace;
}

.dropdown-menu a::before {
    content: "·  ";
}

.dropdown-menu a:hover,
.dropdown-menu a.active {
    background: var(--color-accent-glow);
    color: var(--color-accent);
    text-decoration: none;
}

.dropdown-menu a:hover::before,
.dropdown-menu a.active::before {
    content: "> ";
    color: var(--color-prompt);
}

/* Hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 32px;
    height: 32px;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    padding: 6px;
}

.nav-hamburger span {
    display: block;
    width: 100%;
    height: 1.5px;
    background: var(--color-text-secondary);
    border-radius: 1px;
    transition:
        transform 0.2s ease,
        opacity 0.2s ease;
}

.nav-hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.nav-hamburger.open span:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-text-muted);
    transition:
        color 0.15s ease,
        border-color 0.15s ease,
        background 0.15s ease;
}

.theme-toggle:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background: var(--color-accent-glow);
}

[data-theme="light"] .moon-icon {
    display: none;
}
[data-theme="dark"] .sun-icon {
    display: none;
}

/* ===== Code Blocks ===== */
div.highlight,
figure.highlight {
    position: relative;
    margin-bottom: 1.5rem;
}

pre {
    background: var(--color-bg-code);
    border: 1px solid var(--color-border-bright);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    margin-bottom: 1.5rem;
    line-height: 1.65;
    position: relative;
}

/* Terminal window chrome */
pre::before {
    content: "";
    display: block;
    margin-bottom: 1rem;
    height: 12px;
    background:
        radial-gradient(circle at 6px 6px, #ff5f56 5px, transparent 5px),
        radial-gradient(circle at 26px 6px, #ffbd2e 5px, transparent 5px),
        radial-gradient(circle at 46px 6px, #27c93f 5px, transparent 5px);
    background-repeat: no-repeat;
    opacity: 0.7;
}

code {
    background: var(--color-inline-code-bg);
    padding: 0.2em 0.45em;
    border-radius: 3px;
    color: var(--color-accent);
    border: 1px solid var(--color-border);
    font-weight: bold;
}

pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    color: var(--color-text);
    border: none;
}

/* ===== Rouge Syntax Highlighting — One Dark ===== */
.highlight .c,
.highlight .c1,
.highlight .cm,
.highlight .cs,
.highlight .ch,
.highlight .cp,
.highlight .cpf {
    color: #5c6370;
    font-style: italic;
}

.highlight .k,
.highlight .kc,
.highlight .kd,
.highlight .kn,
.highlight .kp,
.highlight .kr,
.highlight .kt {
    color: #c678dd;
}

.highlight .s,
.highlight .s1,
.highlight .s2,
.highlight .sb,
.highlight .sc,
.highlight .sd,
.highlight .se,
.highlight .sh,
.highlight .sx {
    color: #98c379;
}

.highlight .si {
    color: #98c379;
}
.highlight .sr {
    color: #56b6c2;
}
.highlight .ss {
    color: #e06c75;
}

.highlight .nb,
.highlight .bp {
    color: #e5c07b;
}

.highlight .nc,
.highlight .no {
    color: #e5c07b;
}
.highlight .nd {
    color: #61afef;
}
.highlight .ni {
    color: #c678dd;
}
.highlight .ne {
    color: #e06c75;
}
.highlight .nf,
.highlight .fm {
    color: #61afef;
}
.highlight .nl {
    color: #e06c75;
}
.highlight .nn {
    color: #e5c07b;
}
.highlight .nt {
    color: #e06c75;
}
.highlight .nv,
.highlight .vc,
.highlight .vg,
.highlight .vi,
.highlight .vm {
    color: #e06c75;
}
.highlight .na {
    color: #d19a66;
}

.highlight .mi,
.highlight .mf,
.highlight .mh,
.highlight .mo,
.highlight .mb,
.highlight .mx,
.highlight .il {
    color: #d19a66;
}

.highlight .o,
.highlight .ow {
    color: #56b6c2;
}
.highlight .p {
    color: #abb2bf;
}

.highlight .gi {
    color: #98c379;
}
.highlight .gd {
    color: #e06c75;
}
.highlight .gh {
    color: #61afef;
    font-weight: 600;
}
.highlight .ge {
    font-style: italic;
}
.highlight .gs {
    font-weight: 600;
}

.highlight .err {
    color: #e06c75;
}
.highlight .w {
    color: #abb2bf;
}
.highlight .n {
    color: #abb2bf;
}

/* Light theme overrides for syntax */
[data-theme="light"] .highlight .c,
[data-theme="light"] .highlight .c1,
[data-theme="light"] .highlight .cm,
[data-theme="light"] .highlight .cs,
[data-theme="light"] .highlight .ch,
[data-theme="light"] .highlight .cp,
[data-theme="light"] .highlight .cpf {
    color: #a0a1a7;
}

[data-theme="light"] .highlight .k,
[data-theme="light"] .highlight .kc,
[data-theme="light"] .highlight .kd,
[data-theme="light"] .highlight .kn,
[data-theme="light"] .highlight .kp,
[data-theme="light"] .highlight .kr,
[data-theme="light"] .highlight .kt {
    color: #a626a4;
}

[data-theme="light"] .highlight .s,
[data-theme="light"] .highlight .s1,
[data-theme="light"] .highlight .s2,
[data-theme="light"] .highlight .sb,
[data-theme="light"] .highlight .sc,
[data-theme="light"] .highlight .sd,
[data-theme="light"] .highlight .se,
[data-theme="light"] .highlight .sh,
[data-theme="light"] .highlight .sx,
[data-theme="light"] .highlight .si {
    color: #50a14f;
}

[data-theme="light"] .highlight .sr {
    color: #0184bc;
}
[data-theme="light"] .highlight .ss {
    color: #e45649;
}

[data-theme="light"] .highlight .nb,
[data-theme="light"] .highlight .bp {
    color: #c18401;
}

[data-theme="light"] .highlight .nc,
[data-theme="light"] .highlight .no {
    color: #c18401;
}
[data-theme="light"] .highlight .nd {
    color: #4078f2;
}
[data-theme="light"] .highlight .nf,
[data-theme="light"] .highlight .fm {
    color: #4078f2;
}
[data-theme="light"] .highlight .nt {
    color: #e45649;
}
[data-theme="light"] .highlight .na {
    color: #986801;
}
[data-theme="light"] .highlight .nv,
[data-theme="light"] .highlight .vc,
[data-theme="light"] .highlight .vg,
[data-theme="light"] .highlight .vi,
[data-theme="light"] .highlight .vm {
    color: #e45649;
}

[data-theme="light"] .highlight .mi,
[data-theme="light"] .highlight .mf,
[data-theme="light"] .highlight .mh,
[data-theme="light"] .highlight .mo,
[data-theme="light"] .highlight .mb,
[data-theme="light"] .highlight .mx,
[data-theme="light"] .highlight .il {
    color: #986801;
}

[data-theme="light"] .highlight .o,
[data-theme="light"] .highlight .ow {
    color: #0184bc;
}
[data-theme="light"] .highlight .p {
    color: #383a42;
}

[data-theme="light"] .highlight .gi {
    color: #50a14f;
}
[data-theme="light"] .highlight .gd {
    color: #e45649;
}
[data-theme="light"] .highlight .n {
    color: #383a42;
}

[data-theme="light"] pre code {
    color: #383a42;
}

/* ===== Tables ===== */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    overflow: hidden;
}

th,
td {
    text-align: left;
    padding: 0.6rem 0.85rem;
    border-bottom: 1px solid var(--color-border);
}

th {
    font-weight: 600;
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tr:nth-child(even) {
    background: var(--color-table-stripe);
}

tr:last-child td {
    border-bottom: none;
}

/* ===== Cards Grid ===== */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.principle-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 1.25rem 1.5rem;
    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease;
    position: relative;
}

.principle-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-green));
    border-radius: 6px 6px 0 0;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.principle-card:hover {
    border-color: var(--color-border-bright);
    box-shadow: 0 4px 16px var(--color-card-shadow);
}

.principle-card:hover::before {
    opacity: 1;
}

.principle-card h3 {
    margin-top: 0;
    color: var(--color-accent);
}

.principle-card h3::before {
    content: none;
}

.principle-card p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
    line-height: 1.6;
}

/* ===== Hero ===== */
.hero {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 3rem 2.5rem;
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
}

/* Subtle grid background */
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--color-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.3;
    pointer-events: none;
}

.hero > * {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 2.5rem;
    margin-top: 0;
    margin-bottom: 0.25rem;
    border: none;
    letter-spacing: -0.04em;
}

.hero h1::before {
    content: none;
}

.hero .tagline {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.hero .badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.hero .badges img {
    height: 20px;
}

.hero .hero-description {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    max-width: 480px;
    margin: 0 auto;
}

.cta-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.cta {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    font-family: "IBM Plex Mono", monospace;
    text-decoration: none;
    transition: all 0.15s ease;
    letter-spacing: -0.01em;
}

.cta:hover {
    text-decoration: none;
}

.cta-primary {
    background: var(--color-accent);
    color: #fff;
    border: 1px solid var(--color-accent);
}

.cta-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #fff;
    box-shadow: 0 0 20px var(--color-accent-glow);
}

.cta-secondary {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.cta-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--color-accent-glow);
}

/* ===== Terminal prompt in hero ===== */
.hero-terminal {
    background: var(--color-bg-code);
    border: 1px solid var(--color-border-bright);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    text-align: left;
    margin: 1.5rem auto 0;
    max-width: 460px;
    position: relative;
}

.hero-terminal::before {
    content: "";
    display: block;
    margin-bottom: 0.85rem;
    height: 12px;
    background:
        radial-gradient(circle at 6px 6px, #ff5f56 5px, transparent 5px),
        radial-gradient(circle at 26px 6px, #ffbd2e 5px, transparent 5px),
        radial-gradient(circle at 46px 6px, #27c93f 5px, transparent 5px);
    background-repeat: no-repeat;
    opacity: 0.7;
}

.hero-terminal code {
    background: none;
    border: none;
    color: var(--color-text);
    padding: 0;
}

.hero-terminal .prompt {
    color: var(--color-prompt);
    user-select: none;
}

.hero-terminal .flag {
    color: var(--color-accent);
}

.hero-terminal .pkg {
    color: #e5c07b;
}

[data-theme="light"] .hero-terminal .pkg {
    color: #986801;
}

/* ===== Edit Link ===== */
.edit-link {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.edit-link a {
    color: var(--color-text-muted);
}

.edit-link a::before {
    content: "$ ";
    color: var(--color-prompt);
}

.edit-link a:hover {
    color: var(--color-accent);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--color-footer-bg);
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 2rem;
    transition:
        background-color 0.3s ease,
        border-color 0.3s ease;
}

.footer-container {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

.footer-links a {
    color: var(--color-text-muted);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    transition:
        color 0.15s ease,
        background 0.15s ease;
}

.footer-links a:hover {
    color: var(--color-accent);
    background: var(--color-accent-glow);
    text-decoration: none;
}

.footer-sep {
    color: var(--color-border-bright);
    margin: 0 0.15rem;
}

.footer-copy {
    color: var(--color-text-muted);
}

.footer-copy a {
    color: var(--color-text-secondary);
}

/* ===== Blockquotes ===== */
blockquote {
    border-left: 2px solid var(--color-accent);
    padding: 0.75rem 1rem;
    margin: 1rem 0 1.5rem;
    background: var(--color-accent-glow);
    border-radius: 0 6px 6px 0;
    color: var(--color-text-secondary);
}

blockquote p {
    margin-bottom: 0;
}

/* ===== Lists ===== */
ul,
ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.25rem;
}

li::marker {
    color: var(--color-text-muted);
}

/* ===== Horizontal Rule ===== */
hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 2rem 0;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--color-nav-bg);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: 0.75rem 1.5rem;
        gap: 0.25rem;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links > a,
    .dropdown-toggle {
        padding: 0.5rem 0.65rem;
    }

    .dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 0 0 0 1rem;
        opacity: 1;
        visibility: visible;
        display: none;
    }

    .dropdown.open .dropdown-menu {
        display: block;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero .tagline {
        font-size: 0.9rem;
    }

    .hero {
        padding: 2rem 1.25rem;
    }

    h1 {
        font-size: 1.5rem;
    }
    h2 {
        font-size: 1.25rem;
    }

    .container {
        padding: 1.5rem 1rem;
    }

    th,
    td {
        padding: 0.45rem 0.5rem;
    }

    .footer-container {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .hero-terminal {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .principles-grid {
        grid-template-columns: 1fr;
    }

    .cta-group {
        flex-direction: column;
        align-items: stretch;
    }

    .cta {
        justify-content: center;
    }
}

/* ===== Fade-in animation ===== */
@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero {
    animation: fade-up 0.5s ease both;
}

.hero .badges {
    animation: fade-up 0.5s ease 0.1s both;
}
.hero .hero-description {
    animation: fade-up 0.5s ease 0.15s both;
}
.hero-terminal {
    animation: fade-up 0.5s ease 0.2s both;
}
.cta-group {
    animation: fade-up 0.5s ease 0.25s both;
}