:root {
    --bg: #0A0D14;
    --bg-raised: #111620;
    --bg-hover: #171D2A;
    --border: #1C2333;
    --border-lit: #2A3348;
    --text: #E2E6F0;
    --text-sub: #8892AB;
    --text-faint: #515B72;
    --accent: #6C8AFF;
    --accent-dim: #4A65CC;
    --accent-soft: rgba(108,138,255, 0.10);
    --accent-glow: rgba(108,138,255, 0.18);
    --green: #4ADE80;
    --sans: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    --max-w: 72rem;
    --radius: 12px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *, *::before, *::after {
        transition: none !important;
        animation: none !important;
    }
}

body {
    font-family: var(--sans);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

::selection {
    background: var(--accent-glow);
    color: #fff;
}

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

    a:hover {
        color: #93AEFF;
    }

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}


/* ─── NAV ──────────────────────────────────────────── */

.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0 2rem;
    background: rgba(10, 13, 20, 0.82);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    height: 3.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-family: var(--mono);
    font-weight: 500;
    font-size: 1rem;
    color: var(--text);
    letter-spacing: -0.01em;
    transition: color 0.2s;
}

    .nav-brand:hover {
        color: var(--accent);
    }

.nav-chevron {
    color: var(--accent);
    font-weight: 600;
}

.nav-slash {
    color: var(--text-faint);
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-sub);
    padding: 0.4rem 0.85rem;
    border-radius: 8px;
    transition: color 0.2s, background 0.2s;
}

    .nav-link:hover {
        color: var(--text);
        background: var(--bg-raised);
    }

    .nav-link.active {
        color: var(--accent);
        background: var(--accent-soft);
    }

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-sub);
    cursor: pointer;
    transition: color 0.2s, background 0.2s, border-color 0.2s;
}

    .nav-toggle:hover {
        color: var(--text);
        background: var(--bg-raised);
        border-color: var(--border-lit);
    }

.nav-toggle-close {
    display: none;
}

.nav.is-open .nav-toggle-open {
    display: none;
}

.nav.is-open .nav-toggle-close {
    display: block;
}


/* ─── HERO ─────────────────────────────────────────── */

.hero {
    position: relative;
    overflow: hidden;
    padding: 5rem 2rem 3.5rem;
}

.hero--short {
    padding: 3.5rem 2rem 2.5rem;
}

/* Signature element: soft radial glow behind the name */
.hero-glow {
    position: absolute;
    top: -6rem;
    left: 50%;
    transform: translateX(-50%);
    width: 44rem;
    height: 26rem;
    background: radial-gradient( ellipse at center, rgba(108,138,255, 0.12) 0%, rgba(74,101,204, 0.06) 40%, transparent 72% );
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--max-w);
    margin: 0 auto;
}

.hero-name {
    font-family: var(--sans);
    font-size: clamp(2.5rem, 6vw, 3.75rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
    color: #fff;
}

.hero-name--sm {
    font-size: clamp(2rem, 4vw, 2.75rem);
}

.hero-roles {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.hero-role {
    font-family: var(--mono);
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-sub);
    padding: 0.3rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 999px;
}

.hero-summary {
    margin-top: 1.5rem;
    max-width: 36rem;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-sub);
}

/* ─── CONTENT SECTIONS ─────────────────────────────── */

.content-section {
    max-width: calc(var(--max-w) + 4rem);
    margin: 0 auto;
    padding: 3.5rem 2rem;
    border-top: 1px solid var(--border);
}


/* ─── TOOLS ────────────────────────────────────────── */

.tools-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.tool-card {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.5rem;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    transition: border-color 0.25s, box-shadow 0.25s;
}

    .tool-card:hover {
        border-color: var(--accent-dim);
        box-shadow: 0 0 24px var(--accent-glow);
        color: var(--text);
    }

.tool-icon {
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-soft);
    color: var(--accent);
    border-radius: 10px;
}

.tool-body {
    flex: 1;
    min-width: 0;
}

.tool-name {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.external-icon {
    opacity: 0.4;
    flex-shrink: 0;
}

.tool-desc {
    font-size: 0.875rem;
    color: var(--text-sub);
    margin-top: 0.3rem;
    line-height: 1.55;
}

.tool-tag-row {
    display: flex;
    gap: 0.4rem;
    margin-top: 0.7rem;
}

.tool-tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--text-faint);
    border: 1px solid var(--border);
    padding: 0.2rem 0.55rem;
    border-radius: 5px;
}

.tool-go {
    flex-shrink: 0;
    color: var(--text-faint);
    padding-top: 0.15rem;
    transition: color 0.2s, transform 0.2s;
}

.tool-card:hover .tool-go {
    color: var(--accent);
    transform: translateX(4px);
}


/* ─── TOOL FRAME ───────────────────────────────────── */

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-sub);
    transition: color 0.2s;
}

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

/* Spacer for a back-link sitting under a hero summary or error message. */
.back-link-row {
    margin-top: 1.5rem;
}


/* ─── FOOTER ───────────────────────────────────────── */

.footer {
    border-top: 1px solid var(--border);
    margin-top: auto;
    padding: 0 2rem;
}

.footer-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 1.75rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-faint);
}

.footer-links {
    font-size: 0.8rem;
    color: var(--text-faint);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

    .footer-links a {
        color: var(--text-faint);
    }

        .footer-links a:hover {
            color: var(--accent);
        }


/* ─── RESPONSIVE ───────────────────────────────────── */

@media (max-width: 600px) {
    .nav {
        padding: 0 1.25rem;
        position: relative;
    }

    .nav-toggle {
        display: flex;
    }

    /* Out of the .nav-inner flex flow entirely, so it overlays the
       page below it instead of pushing content down when it opens. */
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0.15rem;
        background: rgba(10, 13, 20, 0.97);
        backdrop-filter: saturate(160%) blur(14px);
        -webkit-backdrop-filter: saturate(160%) blur(14px);
        border-bottom: 1px solid var(--border);
        padding: 0.5rem 1.25rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.25s ease, opacity 0.2s ease;
    }

    .nav.is-open .nav-links {
        max-height: 28rem;
        overflow-y: auto;
        opacity: 1;
        box-shadow: 0 16px 28px -12px rgba(0, 0, 0, 0.55);
    }

    .nav-link {
        padding: 0.7rem 0.85rem;
    }

    .hero {
        padding: 3.5rem 1.25rem 2.5rem;
    }

    .hero--short {
        padding: 2.5rem 1.25rem 2rem;
    }

    .content-section {
        padding: 2.5rem 1.25rem;
    }

    .footer {
        padding: 0 1.25rem;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .hero-name {
        font-size: 2rem;
    }

    .hero-glow {
        width: 24rem;
        height: 16rem;
        top: -3rem;
    }

    .hero-roles {
        gap: 0.35rem;
    }

    .tool-card {
        flex-direction: column;
        gap: 0.85rem;
    }

    .tool-go {
        display: none;
    }
}