:root {
    --primary-color: #4d9fff;
    --secondary-color: #ffffff;
    --secondary-dim: #d8e9ff;
    --surface: #0e0e0f;
    --surface-container-low: #131314;
    --surface-container: #1a191b;
    --surface-container-high: #201f21;
    --surface-container-highest: #262627;
    --surface-container-lowest: #000000;
    --on-surface: #ffffff;
    --on-surface-variant: #adaaab;
    --on-primary: #04101d;
    --on-secondary: #0e0e0f;
    --outline-variant: #484849;
    --outline: #767576;
    --bg-main: var(--surface);
    --bg-alt: var(--surface-container-low);
    --ink: var(--on-surface);
    --muted: var(--on-surface-variant);
    --line: rgba(72, 72, 73, 0.7);
    --card: rgba(26, 25, 27, 0.9);
    --card-hover: rgba(32, 31, 33, 0.96);
    --accent: var(--primary-color);
    --accent-deep: #3b82d6;
    --accent-cool: var(--primary-color);
}

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

html,
body {
    margin: 0;
    min-height: 100%;
    width: 100%;
    overflow-x: hidden;
    overflow-x: clip;
    overscroll-behavior-x: none;
}

html {
    background-color: var(--surface);
    scroll-behavior: smooth;
}

body {
    min-height: 100dvh;
    background-color: var(--surface);
    color: var(--ink);
    font-family: "Manrope", sans-serif;
    background:
        radial-gradient(circle at 14% 18%, rgba(77, 159, 255, 0.12), transparent 28%),
        radial-gradient(circle at 88% 0%, rgba(255, 255, 255, 0.08), transparent 30%),
        linear-gradient(150deg, var(--bg-main), var(--bg-alt));
    line-height: 1.6;
    position: relative;
}

.bg-noise {
    pointer-events: none;
    position: fixed;
    inset: 0;
    opacity: 0.22;
    background-image: repeating-linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.02) 0,
        rgba(255, 255, 255, 0.02) 1px,
        transparent 1px,
        transparent 10px
    );
}

/* Navigation styling consistent with other subpages */
.site-nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 50;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
    background: rgba(14, 14, 15, 0.9);
    box-shadow: 0 4px 20px rgba(77, 159, 255, 0.12);
}

.site-nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1440px;
    margin: 0 auto;
}

.site-nav-links {
    display: inline-flex;
    justify-content: flex-end;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-left: auto;
}

.mobile-menu-button {
    display: none;
    margin-left: auto;
    height: 2.5rem;
    width: 2.5rem;
    align-items: center;
    justify-content: center;
    border: 0;
    background: transparent;
    color: var(--muted);
}

.mobile-menu-button:hover {
    color: var(--accent);
}

.mobile-menu-button .material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    font-size: 1.5rem;
    line-height: 1;
}

.mobile-menu {
    display: block;
    border-top: 1px solid rgba(72, 72, 73, 0.2);
    background: rgba(14, 14, 15, 0.95);
    backdrop-filter: blur(4px);
    padding: 1.25rem 2rem;
}

.mobile-menu.hidden {
    display: none;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mobile-menu a {
    color: var(--muted);
    text-decoration: none;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.mobile-menu a.active-link {
    color: var(--secondary-color);
}

.mobile-menu a:hover {
    color: var(--accent-cool);
}

.site-nav a {
    color: var(--muted);
    text-decoration: none;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    transition: all 0.3s ease-out;
}

.site-nav a.active-link {
    border-bottom: 2px solid var(--secondary-color);
    color: var(--secondary-color);
}

.site-nav a:not(.active-link):hover {
    color: var(--accent-cool);
}

main {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 6rem 0 3.5rem;
}

/* Header Section */
.page-header {
    padding: clamp(2.5rem, 6vw, 4.5rem) 0 1.5rem;
    animation: fadeIn 0.8s ease-out both;
}

.eyebrow {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.28em;
    color: var(--accent-cool);
    font-size: 0.78rem;
    font-weight: 700;
}

h1 {
    font-family: "Space Grotesk", sans-serif;
    letter-spacing: 0.02em;
    font-size: clamp(2rem, 5vw, 3.8rem);
    line-height: 0.95;
    margin: 0.5rem 0 0.8rem;
    text-transform: uppercase;
}

.accent {
    color: var(--accent-cool);
}

.header-copy {
    margin: 0;
    color: var(--muted);
    max-width: 64ch;
    font-size: 1rem;
}

/* Split Tabbed Guide Layout */
.split-guide-layout {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
    align-items: stretch;
    animation: cardRise 0.7s ease-out both;
}

/* Sidebar step selector tabs */
.guide-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    width: 280px;
    flex-shrink: 0;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: rgba(26, 25, 27, 0.35);
    backdrop-filter: blur(10px) saturate(160%);
    -webkit-backdrop-filter: blur(10px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-left: 3px solid transparent;
    text-align: left;
    transition: all 0.25s ease;
    width: 100%;
    cursor: pointer;
    color: var(--muted);
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.02);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--on-surface);
}

.tab-btn.active {
    background: rgba(77, 159, 255, 0.08);
    backdrop-filter: blur(10px) saturate(160%);
    -webkit-backdrop-filter: blur(10px) saturate(160%);
    border: 1px solid rgba(77, 159, 255, 0.2);
    border-left-color: var(--accent);
    color: var(--on-surface);
    box-shadow: 0 4px 15px rgba(77, 159, 255, 0.08), inset 0 1px 0 0 rgba(255, 255, 255, 0.05);
}

.tab-num {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--accent-cool);
    opacity: 0.85;
}

.tab-info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.tab-title {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.tab-desc {
    font-size: 0.7rem;
    color: var(--muted);
    text-transform: uppercase;
    font-family: "Space Grotesk";
    letter-spacing: 0.05em;
}

/* Active Tab Content Panel */
.guide-content-panel {
    flex-grow: 1;
    background: rgba(26, 25, 27, 0.4);
    backdrop-filter: blur(20px) saturate(190%);
    -webkit-backdrop-filter: blur(20px) saturate(190%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-left: 4px solid var(--accent);
    padding: 2rem;
    min-height: 460px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 15px 35px 0 rgba(0, 0, 0, 0.5), inset 0 1px 1px 0 rgba(255, 255, 255, 0.1);
}

.tab-content {
    display: none;
    height: 100%;
    flex-direction: column;
    gap: 1.25rem;
}

.tab-content.active {
    display: flex;
    animation: fadeInContent 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.content-header {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border-bottom: 1px solid var(--outline-variant);
    padding-bottom: 1rem;
}

.content-title {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--on-surface);
}

.content-subtitle {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-cool);
    font-weight: 700;
}

.step-content {
    color: var(--on-surface-variant);
    font-size: 0.95rem;
    line-height: 1.65;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.step-content p {
    margin-bottom: 0.25rem;
}

.step-content ol,
.step-content ul {
    margin-left: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.step-content li strong {
    color: var(--on-surface);
}

/* Call-to-Actions and buttons */
.action-area {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: auto;
    padding-top: 1rem;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: "Space Grotesk", sans-serif;
    color: var(--on-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.7rem 1.4rem;
    border: 1px solid var(--accent);
    background: var(--accent);
    box-shadow: 0 6px 18px rgba(77, 159, 255, 0.15);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
    cursor: pointer;
}

.btn-download:hover {
    color: var(--on-primary);
    border-color: var(--accent-deep);
    background: var(--accent-deep);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(77, 159, 255, 0.25);
}

.btn-download:active {
    transform: translateY(0);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: "Space Grotesk", sans-serif;
    color: var(--on-surface);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.7rem 1.4rem;
    border: 1px solid var(--outline);
    background: rgba(255, 255, 255, 0.03);
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(77, 159, 255, 0.05);
}

/* Keycodes Section */
.keycode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.keycode-card {
    background: var(--surface-container-low);
    border: 1px solid var(--outline-variant);
    padding: 0.65rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    font-weight: 600;
    color: var(--accent-cool);
    border-radius: 2px;
}

.keycode-val {
    user-select: all;
    font-family: monospace;
}

.btn-copy-mini {
    background: transparent;
    border: none;
    color: var(--on-surface-variant);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem;
    transition: color 0.2s ease, transform 0.1s ease;
}

.btn-copy-mini:hover {
    color: var(--accent-cool);
    transform: scale(1.1);
}

.btn-copy-mini:active {
    transform: scale(0.9);
}

/* Connect Command Section */
.connect-panel {
    background: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
    padding: 0.65rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--accent-cool);
}

.connect-cmd {
    user-select: all;
    display: flex;
    align-items: center;
}

.connect-cmd::before {
    content: "/";
    color: var(--muted);
    font-weight: bold;
}

/* Footer Section */
.footer {
    border-top: 1px solid var(--outline-variant);
    margin-top: 3.5rem;
    padding: 2rem 1rem;
    text-align: center;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.66rem;
}

.footer p {
    margin: 0.3rem 0;
}

/* Note Alert Styling */
.note-container {
    background: rgba(77, 159, 255, 0.05);
    border-left: 2px solid var(--accent);
    padding: 0.75rem 1rem;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--on-surface-variant);
}

.note-container strong {
    color: var(--on-surface);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardRise {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInContent {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive adjustments */
@media (max-width: 1024px) and (min-width: 769px) {
    .guide-sidebar {
        width: 220px;
    }
    .tab-btn {
        padding: 0.85rem 1rem;
        gap: 0.75rem;
    }
    .tab-title {
        font-size: 0.8rem;
    }
}

@media (max-width: 768px) {
    .site-nav-links {
        display: none;
    }

    .mobile-menu-button {
        display: flex;
    }

    .split-guide-layout {
        flex-direction: column;
        gap: 1rem;
    }

    .guide-sidebar {
        flex-direction: row;
        width: 100%;
        overflow-x: auto;
        gap: 0.5rem;
        padding-bottom: 0.5rem;
        -webkit-overflow-scrolling: touch;
    }

    .tab-btn {
        flex-shrink: 0;
        width: auto;
        padding: 0.75rem 1rem;
        border-left: 1px solid var(--outline-variant);
        border-bottom: 3px solid transparent;
        align-items: center;
        justify-content: center;
    }

    .tab-btn.active {
        border-left-color: var(--outline-variant);
        border-bottom-color: var(--accent);
    }

    .tab-num {
        font-size: 1.1rem;
    }

    .tab-desc {
        display: none;
    }

    .guide-content-panel {
        padding: 1.25rem;
        min-height: auto;
    }

    .content-title {
        font-size: 1.3rem;
    }
    
    .btn-download,
    .btn-outline {
        padding: 0.6rem 1.1rem;
        font-size: 0.75rem;
    }

    .connect-panel {
        font-size: 0.75rem;
        padding: 0.5rem 0.75rem;
    }

    .connect-cmd {
        word-break: break-all;
    }
}