/* ==========================================================================
   anmkabir.com — design tokens
   Dark by default; light theme via prefers-color-scheme or the toggle.
   ========================================================================== */
:root {
    --bg: #0b0d14;
    --bg-alt: #10131c;
    --surface: #141824;
    --surface-2: #1a1f2e;
    --border: #252b3d;
    --text: #e8eaf2;
    --muted: #9aa1b5;
    --accent: #8b6cff;
    --accent-2: #22d3ee;
    --accent-ink: #ffffff;
    --success: #34d399;
    --danger: #f87171;
    --shadow: 0 10px 30px -12px rgba(0, 0, 0, .55);
    --radius: 14px;
    --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
    --max: 1120px;
    color-scheme: dark;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) {
        --bg: #fbfbfd;
        --bg-alt: #f3f4f8;
        --surface: #ffffff;
        --surface-2: #f5f6fa;
        --border: #e3e5ee;
        --text: #12141c;
        --muted: #5b6275;
        --accent: #6a46f5;
        --accent-2: #0891b2;
        --shadow: 0 10px 30px -14px rgba(20, 24, 40, .18);
        color-scheme: light;
    }
}

:root[data-theme="light"] {
    --bg: #fbfbfd;
    --bg-alt: #f3f4f8;
    --surface: #ffffff;
    --surface-2: #f5f6fa;
    --border: #e3e5ee;
    --text: #12141c;
    --muted: #5b6275;
    --accent: #6a46f5;
    --accent-2: #0891b2;
    --shadow: 0 10px 30px -14px rgba(20, 24, 40, .18);
    color-scheme: light;
}

/* ==========================================================================
   Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    font-size: 17px;
    line-height: 1.65;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main { flex: 1; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 650; }
h1:focus { outline: none; }

p { margin: 0 0 1em; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 780px; }
.center { text-align: center; justify-content: center; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.mono { font-family: var(--mono); }
.accent { color: var(--accent); }
.icon { flex-shrink: 0; vertical-align: -0.2em; }

.skip-link { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 8px; }
.skip-link:focus { left: 8px; }

:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }

.gradient-text {
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.eyebrow {
    display: inline-flex; align-items: center; gap: .5rem;
    font-family: var(--mono); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase;
    color: var(--accent-2); margin-bottom: .75rem;
}

.lead { font-size: 1.2rem; color: var(--muted); max-width: 640px; }

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    backdrop-filter: saturate(160%) blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }

.brand { display: flex; align-items: center; gap: .6rem; color: var(--text); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-mark {
    display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff; font-size: .8rem; font-weight: 800; letter-spacing: .02em;
}
.brand-name { font-family: var(--mono); font-size: .95rem; }

.nav-links { display: flex; align-items: center; gap: .25rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
    display: block; padding: .45rem .8rem; border-radius: 8px;
    color: var(--muted); font-size: .95rem; font-weight: 500;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.nav-links a.active { color: var(--text); }
.nav-links a.nav-cta { color: var(--accent-ink); background: var(--accent); margin-left: .4rem; }
.nav-links a.nav-cta:hover { filter: brightness(1.1); }

.theme-toggle {
    display: grid; place-items: center; width: 38px; height: 38px; margin-left: .4rem;
    background: transparent; color: var(--muted); border: 1px solid var(--border); border-radius: 10px; cursor: pointer;
}
.theme-toggle:hover { color: var(--text); background: var(--surface-2); }
.theme-toggle .icon-sun { display: block; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }
@media (prefers-color-scheme: light) {
    :root:not([data-theme]) .theme-toggle .icon-sun { display: none; }
    :root:not([data-theme]) .theme-toggle .icon-moon { display: block; }
}

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

@media (max-width: 820px) {
    .nav-burger {
        display: flex; flex-direction: column; justify-content: center; gap: 5px;
        width: 40px; height: 40px; padding: 0 9px; cursor: pointer; border-radius: 10px; border: 1px solid var(--border);
    }
    .nav-burger span { display: block; height: 2px; background: var(--text); border-radius: 2px; transition: transform .2s, opacity .2s; }
    .nav-links {
        position: absolute; top: 68px; left: 0; right: 0;
        flex-direction: column; align-items: stretch; gap: 0; padding: 12px 16px 20px;
        background: var(--bg); border-bottom: 1px solid var(--border);
        display: none;
    }
    .nav-links a { padding: .8rem 1rem; font-size: 1.05rem; }
    .nav-links a.nav-cta { margin: .5rem 0 0; text-align: center; }
    .theme-toggle { margin: .75rem 0 0; }
    .nav-toggle:checked ~ .nav-links { display: flex; }
    .nav-toggle:checked + .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle:checked + .nav-burger span:nth-child(2) { opacity: 0; }
    .nav-toggle:checked + .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ==========================================================================
   Buttons, tags, cards
   ========================================================================== */
.btn {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .75rem 1.25rem; border-radius: 10px; border: 1px solid transparent;
    font: inherit; font-weight: 600; font-size: .98rem; cursor: pointer;
    transition: transform .15s ease, filter .15s ease, background .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:disabled { opacity: .6; cursor: progress; transform: none; }
.btn-primary { background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, var(--accent-2))); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-light { background: #fff; color: #1b1340; }

.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.75rem 0; }

.tags { display: flex; flex-wrap: wrap; gap: .4rem; list-style: none; margin: 0; padding: 0; }
.tag {
    font-family: var(--mono); font-size: .75rem; padding: .2rem .55rem; border-radius: 6px;
    background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent);
    border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
}
.tag-lg { font-size: .85rem; padding: .35rem .7rem; color: var(--text); background: var(--surface-2); border-color: var(--border); }

.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 420px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }

.card {
    position: relative;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1.5rem; box-shadow: var(--shadow);
    transition: border-color .2s ease, transform .2s ease;
}

.feature-icon {
    display: inline-grid; place-items: center; width: 44px; height: 44px; margin-bottom: 1rem; border-radius: 12px;
    color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent);
}

.project-card { display: flex; flex-direction: column; }
.project-card:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); transform: translateY(-3px); }
.project-card h3 a { color: var(--text); }
.project-card p { flex: 1; }
.project-card .stretched::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); }
.card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: .75rem; }
.card-links { display: flex; gap: .5rem; position: relative; z-index: 1; }
.card-links a { color: var(--muted); }
.card-links a:hover { color: var(--text); }

/* ==========================================================================
   Sections
   ========================================================================== */
.section { padding: 80px 0; }
.section.pt-0 { padding-top: 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap; }
.section-head h2 { margin: 0; }
.link-arrow { display: inline-flex; align-items: center; gap: .35rem; font-weight: 600; }

.page-head { padding: 72px 0 40px; }
.back-link { display: inline-block; margin-bottom: 1.25rem; color: var(--muted); font-size: .95rem; }

/* Hero */
.hero { position: relative; padding: 88px 0 56px; overflow: hidden; }
.hero::before {
    content: ""; position: absolute; inset: -40% -10% auto; height: 640px; z-index: -1;
    background:
        radial-gradient(40% 50% at 25% 40%, color-mix(in srgb, var(--accent) 28%, transparent), transparent 70%),
        radial-gradient(35% 45% at 80% 30%, color-mix(in srgb, var(--accent-2) 20%, transparent), transparent 70%);
    filter: blur(20px);
}
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 3rem; align-items: center; }
.hero-grid > * { min-width: 0; }
.hero-links { display: flex; flex-wrap: wrap; gap: 1.25rem; list-style: none; padding: 0; margin: 0; }
.hero-links a { display: inline-flex; align-items: center; gap: .4rem; color: var(--muted); font-size: .95rem; }
.hero-links a:hover { color: var(--text); text-decoration: none; }

.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 0 var(--success); animation: pulse 2s infinite; }
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--success) 60%, transparent); }
    70% { box-shadow: 0 0 0 10px transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
}

.code-window {
    background: #0f1220; border: 1px solid #262c42; border-radius: var(--radius);
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .6), 0 0 0 1px rgba(139, 108, 255, .08);
    overflow: hidden; transform: rotate(1deg);
}
.code-bar { display: flex; align-items: center; gap: 6px; padding: 12px 14px; background: #151a2c; border-bottom: 1px solid #262c42; }
.code-bar span { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.code-bar span:nth-child(2) { background: #febc2e; }
.code-bar span:nth-child(3) { background: #28c840; }
.code-bar em { margin-left: 10px; font-style: normal; font-family: var(--mono); font-size: .78rem; color: #8b93ad; }
.code { margin: 0; padding: 20px; overflow-x: auto; font-family: var(--mono); font-size: .85rem; line-height: 1.7; color: #d6dbf0; }
.code .k { color: #c792ea; }
.code .t { color: #5ee0f5; }
.code .s { color: #c3e88d; }
.code .c { color: #6b7394; font-style: italic; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; list-style: none; padding: 0; margin: 56px 0 0; }
.stats li { padding: 1.25rem 1.5rem; border: 1px solid var(--border); border-radius: var(--radius); background: color-mix(in srgb, var(--surface) 70%, transparent); }
.stats strong { display: block; font-size: 1.9rem; font-weight: 800; letter-spacing: -0.02em; }
.stats span { color: var(--muted); font-size: .92rem; }

@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; }
    .code-window { transform: none; }
}
@media (max-width: 600px) {
    .stats { grid-template-columns: 1fr; }
    .section { padding: 56px 0; }
    .hero { padding-top: 56px; }
    .container { padding: 0 16px; }
}

/* CTA band */
.cta-band {
    display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap;
    padding: 2.5rem; border-radius: calc(var(--radius) + 6px); color: #fff;
    background: linear-gradient(135deg, #5b3fe0, #7c5cff 45%, #0ea5c6);
}
.cta-band h2 { margin-bottom: .3rem; }
.cta-band p { margin: 0; opacity: .9; }

/* Posts */
.post-row { display: grid; grid-template-columns: 130px 1fr; gap: 1.5rem; padding: 1.5rem 0; border-top: 1px solid var(--border); }
.post-row:last-child { border-bottom: 1px solid var(--border); }
.post-row h3 { margin-bottom: .3rem; }
.post-row h3 a { color: var(--text); }
.post-row p { margin-bottom: .3rem; }
.post-row time { padding-top: .2rem; }
@media (max-width: 600px) { .post-row { grid-template-columns: 1fr; gap: .25rem; } }

/* Prose (about, project details, blog posts) */
.prose { font-size: 1.08rem; }
.prose h2 { margin-top: 2rem; font-size: 1.6rem; }
.prose h3 { margin-top: 1.5rem; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin-bottom: .4rem; }
.prose blockquote { margin: 1.5rem 0; padding: .5rem 1.25rem; border-left: 3px solid var(--accent); color: var(--muted); font-style: italic; }
.prose code { font-family: var(--mono); font-size: .9em; padding: .12em .4em; border-radius: 6px; background: var(--surface-2); border: 1px solid var(--border); }
.prose pre { padding: 1.1rem 1.25rem; overflow-x: auto; border-radius: 12px; background: #0f1220; border: 1px solid #262c42; color: #d6dbf0; }
.prose pre code { padding: 0; background: none; border: 0; font-size: .88rem; }
.prose img { max-width: 100%; border-radius: 12px; }
.prose table { width: 100%; border-collapse: collapse; }
.prose th, .prose td { padding: .5rem .75rem; border-bottom: 1px solid var(--border); text-align: left; }

.check-list { list-style: none; padding: 0 !important; }
.check-list li { display: flex; gap: .7rem; align-items: flex-start; }
.check-list .icon { color: var(--success); margin-top: .3rem; }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 2rem 0 0; border-left: 2px solid var(--border); }
.timeline > li { position: relative; padding: 0 0 2rem 1.75rem; }
.timeline > li::before {
    content: ""; position: absolute; left: -7px; top: .45rem; width: 12px; height: 12px; border-radius: 50%;
    background: var(--accent); box-shadow: 0 0 0 4px var(--bg-alt);
}
.timeline-head { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.timeline-head h3 { margin-bottom: .4rem; }
.timeline ul { margin: 0; padding-left: 1.1rem; color: var(--muted); }

/* Project filters */
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.chip {
    font: inherit; font-size: .88rem; font-weight: 500; padding: .4rem .9rem; border-radius: 999px; cursor: pointer;
    color: var(--muted); background: var(--surface); border: 1px solid var(--border);
}
.chip:hover { color: var(--text); }
.chip.active { color: #fff; background: var(--accent); border-color: var(--accent); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 2rem; align-items: start; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.form { display: flex; flex-direction: column; gap: 1.1rem; }
.form label { display: flex; flex-direction: column; gap: .4rem; font-weight: 500; font-size: .95rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
@media (max-width: 600px) { .field-row { grid-template-columns: 1fr; } }
.form input, .form textarea {
    font: inherit; font-size: 1rem; color: var(--text); padding: .75rem .9rem;
    background: var(--bg); border: 1px solid var(--border); border-radius: 10px; resize: vertical;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
.form .invalid { border-color: var(--danger); }
.form button { align-self: flex-start; }
.validation-message { color: var(--danger); font-size: .85rem; font-weight: 400; }
.form-error { color: var(--danger); }
.form-success { text-align: center; padding: 2rem 1rem; }
.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.contact-links { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.contact-links a { display: flex; align-items: center; gap: .75rem; padding: .75rem 0; color: var(--text); border-bottom: 1px solid var(--border); }
.contact-links a:hover { color: var(--accent); text-decoration: none; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 40px 0; margin-top: 40px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.footer-inner p { margin: 0; }
.footer-links { display: flex; gap: .5rem; }
.footer-links a {
    display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px;
    color: var(--muted); border: 1px solid var(--border);
}
.footer-links a:hover { color: var(--text); background: var(--surface-2); }

/* ==========================================================================
   Blazor framework UI
   ========================================================================== */
#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow; color: #222;
    bottom: 0; left: 0; position: fixed; width: 100%; z-index: 1000;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
}
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }

.blazor-error-boundary { background: #b32121; padding: 1rem; color: white; border-radius: 8px; }
.blazor-error-boundary::after { content: "An error has occurred."; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ==========================================================================
   Resume-driven additions
   ========================================================================== */
.role-line { color: var(--muted); font-size: .95rem; margin: -.25rem 0 1rem; letter-spacing: .01em; }
.industries { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; margin: 1.75rem 0 0; }

.certs { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 1rem; list-style: none; margin: 0; padding: 0; }
.cert { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.25rem; }
.cert img { flex-shrink: 0; object-fit: contain; }
.cert strong { display: block; line-height: 1.3; }

.grid-2-tight { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 700px) { .grid-2-tight { grid-template-columns: 1fr; } }
.cert-list { list-style: none; margin: 0; padding: 0; }
.cert-list li { display: flex; align-items: center; gap: .7rem; padding: .35rem 0; }
.cert-list img { object-fit: contain; }

.project-cover {
    display: block; width: calc(100% + 3rem); max-width: none; height: auto; aspect-ratio: 16 / 9; object-fit: cover;
    margin: -1.5rem -1.5rem 1.25rem; border-radius: var(--radius) var(--radius) 0 0; border-bottom: 1px solid var(--border);
}
.project-hero { display: block; width: 100%; height: auto; margin: 0 0 1rem; border-radius: var(--radius); border: 1px solid var(--border); }