:root {
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-7: 32px;
    --space-8: 40px;
    --space-9: 48px;
    --space-10: 64px;
    --smartbit-azure: #0b4188;
    --deep-navy: #08315f;
    --slate-text: #243447;
    --secondary-text: #5b6777;
    --border-gray: #d8e0ea;
    --surface-white: #fff;
    --background-mist: #f5f7fa;
    --soft-blue-tint: #eaf1fb;
    --card-radius: 16px;
    --card-shadow: 0 1px 2px rgba(8, 49, 95, 0.06);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", sans-serif;
    background: var(--background-mist);
    color: var(--slate-text);
    line-height: 1.5;
}

a {
    color: var(--smartbit-azure);
}

a:focus-visible,
button:focus-visible {
    outline: 3px solid #f0b429;
    outline-offset: 3px;
}

.skip-link {
    position: absolute;
    top: var(--space-2);
    left: var(--space-2);
    z-index: 10;
    transform: translateY(-160%);
    padding: var(--space-2) var(--space-3);
    border-radius: 8px;
    background: var(--surface-white);
    color: var(--deep-navy);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    background: var(--surface-white);
    border-bottom: 1px solid var(--border-gray);
}

.site-header-inner {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-6);
    max-width: 1120px;
    margin: 0 auto;
    padding: var(--space-3) var(--space-6);
}

.brand-block {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.brand {
    display: inline-flex;
    align-items: center;
    line-height: 0;
}

.brand img {
    width: 170px;
    height: auto;
}

.brand-tagline {
    margin: 0;
    color: var(--secondary-text);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1.2;
    white-space: nowrap;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    margin-left: auto;
}

.site-nav a {
    color: var(--slate-text);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
    color: var(--smartbit-azure);
}

.menu-toggle {
    display: none;
    margin-left: auto;
    border: 1px solid var(--border-gray);
    border-radius: 10px;
    padding: var(--space-2) var(--space-3);
    background: var(--surface-white);
    color: var(--slate-text);
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.hero,
.page-hero {
    max-width: 1120px;
    margin: var(--space-8) auto 0;
    padding: 0 var(--space-6);
}

.hero {
    text-align: center;
}

.page-hero {
    text-align: left;
}

.eyebrow {
    margin: 0 0 var(--space-2);
    color: var(--smartbit-azure);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2 {
    color: var(--deep-navy);
    font-weight: 600;
}

h1 {
    margin: 0 0 var(--space-3);
    font-size: 32px;
    line-height: 1.25;
}

h2 {
    margin: 0 0 var(--space-3);
    font-size: 24px;
    line-height: 1.34;
}

h3 {
    margin: 0 0 var(--space-2);
    color: var(--deep-navy);
    font-size: 18px;
    font-weight: 600;
    line-height: 1.3;
}

p {
    margin: 0;
}

.cert-card .cert-meta {
    margin-bottom: var(--space-3);
    color: var(--secondary-text);
    font-size: 14px;
}

.cert-card p:not(.cert-meta) {
    margin-bottom: var(--space-3);
}

.cert-verify {
    font-weight: 600;
}

.badge-muted {
    display: inline-block;
    border: 1px solid var(--border-gray);
    border-radius: 999px;
    padding: var(--space-1) var(--space-3);
    background: var(--background-mist);
    color: var(--secondary-text);
    font-size: 13px;
    font-weight: 600;
}

.page-hero > p:not(.eyebrow),
.hero p {
    max-width: 760px;
    color: var(--secondary-text);
    font-size: 18px;
    line-height: 28px;
}

.hero p {
    margin: 0 auto;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.button-primary,
.button-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-gray);
    border-radius: 10px;
    padding: var(--space-3) var(--space-5);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
}

.button-primary[hidden],
.button-secondary[hidden] {
    display: none;
}

.button-primary {
    border-color: var(--smartbit-azure);
    background: var(--smartbit-azure);
    color: var(--surface-white);
}

.button-secondary {
    background: var(--surface-white);
    color: var(--smartbit-azure);
}

.button-large {
    padding: var(--space-4) var(--space-7);
    font-size: 16px;
}

.primary-contact-card {
    border: 2px solid var(--smartbit-azure);
    background: var(--soft-blue-tint);
    text-align: center;
}

.primary-contact-card p:not(.eyebrow) {
    max-width: 480px;
    margin-right: auto;
    margin-left: auto;
    color: var(--secondary-text);
    font-size: 16px;
}

.primary-contact-card .hero-actions {
    justify-content: center;
}

.content-shell,
main {
    max-width: 1120px;
    margin: var(--space-9) auto;
    padding: 0 var(--space-6);
}

section,
.card,
.cta-band {
    border: 1px solid var(--border-gray);
    border-radius: var(--card-radius);
    background: var(--surface-white);
    box-shadow: var(--card-shadow);
}

section,
.card {
    padding: var(--space-6);
}

main section + section,
.stack > * + * {
    margin-top: var(--space-6);
}

.evidence-strip {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-7);
}

.chip {
    border: 1px solid var(--border-gray);
    border-radius: 999px;
    padding: var(--space-2) var(--space-4);
    background: var(--soft-blue-tint);
    color: var(--deep-navy);
    font-size: 14px;
    font-weight: 600;
    line-height: 20px;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: var(--space-6);
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    min-width: 0;
}

.form-field label {
    color: var(--deep-navy);
    font-weight: 600;
}

.form-control {
    width: 100%;
    min-width: 0;
    min-height: 48px;
    border: 1px solid var(--border-gray);
    border-radius: 10px;
    padding: var(--space-3);
    background: var(--surface-white);
    color: var(--slate-text);
    font: inherit;
}

textarea.form-control {
    resize: vertical;
}

.form-control::placeholder {
    color: var(--secondary-text);
}

.form-control:focus-visible {
    border-color: var(--smartbit-azure);
    outline: 3px solid #f0b429;
    outline-offset: 3px;
}

.cv-generator .hero-actions button {
    font-family: inherit;
}

.cv-generator .hero-actions button:disabled {
    cursor: not-allowed;
    opacity: 0.65;
}

.cv-preview-note,
.cv-output-placeholder {
    color: var(--secondary-text);
}

.cv-output-placeholder {
    min-height: 120px;
    border: 1px dashed var(--border-gray);
    border-radius: 10px;
    padding: var(--space-4);
    background: var(--background-mist);
}

.cv-api-error {
    color: #a12622;
}

.cv-api-error:empty {
    display: none;
}

.cv-json-response {
    margin: var(--space-3) 0 0;
    color: var(--slate-text);
    font-size: 14px;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.card p + p,
.card p + ul,
.card ul + p,
.card ul + ul {
    margin-top: var(--space-3);
}

ul {
    margin: 0;
    padding-left: 20px;
}

li + li {
    margin-top: var(--space-2);
}

.trust-note {
    background: var(--soft-blue-tint);
}

.markdown-body {
    overflow-x: auto;
}

.markdown-body h2 {
    margin-top: var(--space-7);
}

.markdown-body h3,
.markdown-body h4 {
    margin-top: var(--space-6);
}

.markdown-body p + p,
.markdown-body p + ul,
.markdown-body p + ol,
.markdown-body ul + p,
.markdown-body ol + p,
.markdown-body table + p {
    margin-top: var(--space-3);
}

.markdown-body table {
    width: 100%;
    margin: var(--space-4) 0;
    border-collapse: collapse;
    text-align: left;
}

.markdown-body th,
.markdown-body td {
    border: 1px solid var(--border-gray);
    padding: var(--space-3);
    vertical-align: top;
}

.markdown-body th {
    background: var(--soft-blue-tint);
    color: var(--deep-navy);
}

.markdown-body pre {
    overflow-x: auto;
    border: 1px solid var(--border-gray);
    border-radius: 10px;
    padding: var(--space-4);
    background: var(--background-mist);
}

.markdown-body code {
    overflow-wrap: anywhere;
}

.markdown-body blockquote {
    margin: var(--space-4) 0;
    border-left: 4px solid var(--smartbit-azure);
    padding-left: var(--space-4);
    color: var(--secondary-text);
}

.publication-note p + p {
    margin-top: var(--space-2);
}

.cta-band {
    margin-top: var(--space-7);
    padding: var(--space-7);
}

.cta-band p {
    color: var(--secondary-text);
}

.cta-band .hero-actions {
    margin-top: var(--space-5);
}

.contact-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: var(--space-6);
}

.contact-link {
    display: inline-block;
    margin-top: var(--space-3);
    font-weight: 600;
    overflow-wrap: anywhere;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.site-footer {
    max-width: 1120px;
    margin: 0 auto var(--space-10);
    padding: 0 var(--space-6);
    color: var(--secondary-text);
    font-size: 14px;
}

@media (max-width: 1023px) {
    .site-header-inner,
    .hero,
    .page-hero,
    .content-shell,
    main,
    .site-footer {
        padding-right: var(--space-5);
        padding-left: var(--space-5);
    }

    .content-shell,
    main {
        margin-top: var(--space-8);
        margin-bottom: var(--space-8);
    }

    section,
    .card,
    .cta-band {
        padding: var(--space-5);
    }
}

@media (max-width: 899px) {
    .site-header-inner {
        flex-wrap: wrap;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .site-nav {
        display: none;
        flex-basis: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
        margin-left: 0;
        padding-top: var(--space-2);
    }

    .site-nav.is-open {
        display: flex;
    }
}

@media (max-width: 639px) {
    .brand-tagline {
        display: none;
    }

    .hero,
    .page-hero,
    .content-shell,
    main,
    .site-footer,
    .site-header-inner {
        padding-right: var(--space-4);
        padding-left: var(--space-4);
    }

    .hero,
    .page-hero {
        margin-top: var(--space-7);
    }

    h1 {
        font-size: 28px;
        line-height: 36px;
    }

    h2 {
        font-size: 22px;
        line-height: 30px;
    }

    .page-hero > p:not(.eyebrow),
    .hero p {
        font-size: 16px;
        line-height: 24px;
    }

    .hero-actions,
    .content-grid,
    .contact-layout {
        flex-direction: column;
        grid-template-columns: 1fr;
    }

    .button-primary,
    .button-secondary {
        width: 100%;
    }

    .primary-contact-card p:not(.eyebrow) {
        max-width: none;
    }

    section,
    .card,
    .cta-band {
        padding: var(--space-4);
    }

    .chip {
        width: 100%;
        border-radius: 10px;
    }
}

.ask-stefan-teaser {
    background: var(--soft-blue-tint);
}

.ask-stefan-teaser > p:not(.eyebrow) {
    max-width: 700px;
    color: var(--secondary-text);
}

.ask-stefan-teaser .hero-actions {
    margin-top: var(--space-5);
}

.smartbit-ai-hero {
    margin-top: var(--space-8);
}

.smartbit-ai-hero h1 {
    letter-spacing: 0.06em;
}

.smartbit-ai-hero h1 .chip {
    letter-spacing: normal;
    vertical-align: middle;
}

.smartbit-ai-hero h1 .smartbit-ai-badge-experimental {
    border-color: var(--smartbit-azure);
    background: var(--surface-white);
    color: var(--smartbit-azure);
}

.smartbit-ai-badge-environment {
    border: 1px dashed var(--border-gray);
    border-radius: 6px;
    padding: 2px var(--space-2);
    color: var(--secondary-text);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: normal;
    vertical-align: middle;
}

.smartbit-ai-hero > p:not(.eyebrow) {
    color: var(--deep-navy);
    font-size: 17px;
    font-weight: 600;
}

.smartbit-ai-hero > p.smartbit-ai-subtitle {
    margin-top: var(--space-2);
    margin-bottom: var(--space-5);
    color: var(--secondary-text);
    font-weight: 400;
}

.smartbit-ai-topics {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    margin: var(--space-4) auto 0;
    padding: 0;
    list-style: none;
}

.smartbit-ai-topics li {
    margin: 0;
    border: 1px solid var(--border-gray);
    border-radius: 999px;
    padding: var(--space-1) var(--space-3);
    background: var(--surface-white);
    color: var(--deep-navy);
    font-size: 13px;
    font-weight: 600;
}

.smartbit-ai-main {
    max-width: 1000px;
    margin-top: var(--space-7);
}

.smartbit-messenger {
    display: grid;
    grid-template-rows: auto minmax(240px, 1fr) auto auto auto;
    gap: var(--space-4);
    min-height: 620px;
    max-height: 760px;
    border: 1px solid var(--border-gray);
    border-radius: var(--card-radius);
    padding: var(--space-5);
    background: var(--surface-white);
    box-shadow: var(--card-shadow);
}

.smartbit-messenger-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.smartbit-messenger-heading .eyebrow {
    margin-bottom: var(--space-1);
}

.smartbit-messenger-heading h2 {
    margin: 0;
    font-size: 20px;
}

.smartbit-clear-button {
    flex: 0 0 auto;
    border: 0;
    padding: var(--space-2);
    background: transparent;
    color: var(--secondary-text);
    font: inherit;
    font-size: 13px;
    text-decoration: underline;
    cursor: pointer;
}

.smartbit-conversation {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    min-height: 240px;
    overflow-y: auto;
    overscroll-behavior: contain;
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: var(--space-4);
    background: var(--background-mist);
    scroll-behavior: smooth;
}

.smartbit-message {
    width: fit-content;
    max-width: min(86%, 720px);
    border: 1px solid var(--border-gray);
    border-radius: 14px;
    padding: var(--space-3) var(--space-4);
    background: var(--surface-white);
    overflow-wrap: anywhere;
}

.smartbit-message-assistant {
    align-self: flex-start;
    border-top-left-radius: 4px;
}

.smartbit-message-user {
    align-self: flex-end;
    border-color: #c7d8f1;
    border-top-right-radius: 4px;
    background: var(--soft-blue-tint);
}

.smartbit-message-label {
    margin-bottom: var(--space-1);
    color: var(--smartbit-azure);
    font-size: 12px;
    font-weight: 700;
}

.smartbit-message-text {
    white-space: pre-wrap;
}

.smartbit-citation-block {
    margin-top: var(--space-3);
    border-top: 1px solid var(--border-gray);
    padding-top: var(--space-2);
}

.smartbit-citation-heading {
    margin-bottom: var(--space-1);
    color: var(--secondary-text);
    font-size: 12px;
    font-weight: 700;
}

.smartbit-citation-list {
    padding-left: 18px;
    color: var(--secondary-text);
    font-size: 12px;
}

.smartbit-citation-list li + li {
    margin-top: var(--space-1);
}

.smartbit-starter-panel {
    display: grid;
    gap: var(--space-2);
}

.smartbit-starter-label {
    color: var(--secondary-text);
    font-size: 13px;
    font-weight: 600;
}

.smartbit-starter-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.smartbit-starter {
    border: 1px solid var(--border-gray);
    border-radius: 999px;
    padding: var(--space-2) var(--space-3);
    background: var(--surface-white);
    color: var(--smartbit-azure);
    font: inherit;
    font-size: 13px;
    text-align: left;
    cursor: pointer;
}

.smartbit-starter:hover {
    background: var(--soft-blue-tint);
}

.smartbit-starter:disabled,
.smartbit-composer button:disabled {
    cursor: wait;
    opacity: 0.65;
}

.smartbit-composer {
    position: sticky;
    bottom: 0;
    display: flex;
    align-items: flex-end;
    gap: var(--space-3);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: var(--space-2);
    background: var(--surface-white);
}

.smartbit-composer textarea {
    flex: 1;
    min-width: 0;
    min-height: 48px;
    max-height: 140px;
    resize: vertical;
    border: 0;
    padding: var(--space-2);
    color: var(--slate-text);
    font: inherit;
}

.smartbit-composer textarea:focus {
    outline: none;
}

.smartbit-composer button {
    min-height: 44px;
    font-family: inherit;
    cursor: pointer;
}

.smartbit-composer-note,
.smartbit-assistant-status {
    color: var(--secondary-text);
    font-size: 12px;
}

.smartbit-assistant-status {
    min-height: 1.3em;
    color: #a12622;
}

.smartbit-assistant-status:empty {
    display: none;
}

@media (max-width: 639px) {
    .smartbit-ai-hero {
        margin-top: var(--space-6);
    }

    .smartbit-ai-topics {
        justify-content: flex-start;
    }

    .smartbit-ai-topics li {
        border-radius: 10px;
    }

    .smartbit-ai-main {
        margin-top: var(--space-5);
    }

    .smartbit-messenger {
        min-height: 620px;
        max-height: calc(100vh - 220px);
        gap: var(--space-3);
        padding: var(--space-3);
    }

    .smartbit-messenger-heading {
        align-items: flex-start;
    }

    .smartbit-messenger-heading h2 {
        font-size: 18px;
    }

    .smartbit-conversation {
        min-height: 200px;
        padding: var(--space-3);
    }

    .smartbit-message {
        max-width: 94%;
    }

    .smartbit-starter-list {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: var(--space-1);
    }

    .smartbit-starter {
        flex: 0 0 auto;
        max-width: 86vw;
        border-radius: 10px;
    }

    .smartbit-composer button {
        width: auto;
    }
}