:root {
    --qb-bg: #f3eee5;
    --qb-paper: rgba(251, 248, 242, 0.94);
    --qb-paper-strong: #fbf8f2;
    --qb-text: #1b1a17;
    --qb-muted: #69645b;
    --qb-line: rgba(27, 26, 23, 0.12);
    --qb-dark: #191816;
    --qb-radius: 1.15rem;
    --qb-shadow: 0 12px 40px rgba(0, 0, 0, 0.045);
    --qb-content: 920px;
    --qb-reading: 760px;
    --qb-space-1: 0.5rem;
    --qb-space-2: 0.75rem;
    --qb-space-3: 1rem;
    --qb-space-4: 1.5rem;
    --qb-space-5: 2rem;
    --qb-space-6: 3rem;
    --qb-space-7: 4rem;
    --qb-space-8: 5rem;
}

html {
    scroll-behavior: smooth;
}

body {
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.76), transparent 28%),
        linear-gradient(180deg, #f7f3eb 0%, var(--qb-bg) 100%);
    color: var(--qb-text);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
}

a:hover {
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

/* Header */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    backdrop-filter: blur(14px);
    background: rgba(247, 243, 235, 0.82);
    border-bottom: 1px solid var(--qb-line);
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 74px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--qb-text);
    text-decoration: none;
    font-weight: 600;
    letter-spacing: -0.03em;
}

.brand:hover,
.brand:focus {
    color: var(--qb-text);
    text-decoration: none;
}

.brand-mark {
    width: 2.45rem;
    height: 2.45rem;
    display: grid;
    place-items: center;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(180deg, #23211e 0%, #151412 100%);
    color: #f7f3eb;
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.nav {
    display: flex;
    align-items: center;
    gap: 1.4rem;
}

.nav a {
    color: var(--qb-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
}

.nav a:hover,
.nav a:focus,
.nav a.active {
    color: var(--qb-text);
    text-decoration: none;
}

/* Shared */

.navbar-brand,
.nav-link,
.btn,
.form-control {
    font-weight: 500;
}

.nav-link.active {
    color: var(--qb-text) !important;
}

.qb-container {
    max-width: var(--qb-content);
    margin: 0 auto;
}

.qb-reading {
    max-width: var(--qb-reading);
}

.qb-kicker,
.qb-kicker-small {
    color: var(--qb-muted);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.76rem;
}

.qb-kicker {
    margin-bottom: 1rem;
}

.qb-kicker-small {
    margin-bottom: 1rem;
}

.qb-display,
.qb-display-wide,
.qb-section-title,
.qb-about-question span,
.qb-newsletter-title,
.qb-article-title,
.admin-title {
    font-family: Georgia, "Times New Roman", serif;
    letter-spacing: -0.045em;
}

.qb-display {
    font-size: clamp(3.4rem, 9vw, 6rem);
    line-height: 0.92;
    max-width: 12ch;
    margin: 0;
}

.qb-display-wide {
    max-width: 13ch;
}

.qb-section-title {
    font-size: clamp(2.4rem, 5vw, 4rem);
    line-height: 0.96;
    margin: 0 0 0.5rem;
}

.qb-lead,
.qb-section-copy,
.qb-newsletter-text,
.qb-story-excerpt,
.qb-category-copy,
.qb-article-excerpt {
    color: var(--qb-muted);
}

.qb-lead {
    font-size: clamp(1.25rem, 2.2vw, 1.5rem);
    line-height: 1.6;
    max-width: 43rem;
}

.qb-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.qb-btn,
.qb-input {
    min-height: 3.15rem;
}

.qb-input {
    border-color: var(--qb-line);
    background: rgba(255, 255, 255, 0.72);
}

.qb-input:focus {
    border-color: rgba(25, 24, 22, 0.32);
    box-shadow: 0 0 0 0.25rem rgba(25, 24, 22, 0.08);
}

/* Sections */

.py-lg-6 {
    padding-top: 6rem !important;
    padding-bottom: 6rem !important;
}

.qb-section {
    padding: 0 0 var(--qb-space-8);
}

.qb-section-first {
    padding-top: 0;
}

.qb-section-last {
    padding-bottom: 5rem;
}

.qb-section-head {
    margin-bottom: 2.25rem;
}

.qb-section-copy {
    font-size: 1.08rem;
    line-height: 1.65;
    max-width: 38rem;
    margin: 0;
}

.qb-principle {
    padding: 1rem 0 4rem;
}

/* Grid */

.qb-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
}

.qb-grid-tight {
    gap: 1.25rem;
}

/* Story cards */

.qb-story-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.qb-story-meta {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.9rem;
    color: var(--qb-muted);
    font-size: 0.9rem;
}

.qb-story-kicker {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.74rem;
}

.qb-story-time {
    white-space: nowrap;
}

.qb-story-title {
    font-size: clamp(1.65rem, 2vw, 2rem);
    line-height: 1.06;
    letter-spacing: -0.035em;
    margin: 0 0 0.9rem;
}

.qb-story-title-link {
    text-decoration: none;
}

.qb-story-title-link:hover {
    text-decoration: none;
}

.qb-story-excerpt {
    font-size: 1.05rem;
    line-height: 1.7;
    margin: 0 0 1.1rem;
}

.qb-story-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: auto;
    padding-top: 0.25rem;
}

.qb-story-link,
.qb-story-taxonomy {
    text-decoration: none;
}

.qb-story-link {
    font-weight: 600;
}

.qb-story-taxonomy {
    color: var(--qb-muted);
    font-size: 0.92rem;
}

.qb-story-link:hover,
.qb-story-taxonomy:hover {
    text-decoration: none;
}

/* Category cards */

.qb-category-card {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    min-height: 100%;
    padding: 1.4rem 1.45rem;
    border: 1px solid var(--qb-line);
    border-radius: var(--qb-radius);
    background: rgba(251, 248, 242, 0.78);
    box-shadow: var(--qb-shadow);
    text-decoration: none;
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.qb-category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.06);
    border-color: rgba(27, 26, 23, 0.22);
    text-decoration: none;
}

.qb-category-label {
    color: var(--qb-muted);
    font-size: 0.92rem;
}

.qb-category-title {
    font-size: 1.25rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.qb-category-copy {
    font-size: 0.98rem;
    line-height: 1.6;
    margin: 0;
}

.qb-category-count {
    margin-top: auto;
    padding-top: 0.75rem;
    color: var(--qb-muted);
    font-size: 0.9rem;
}

/* About */

.qb-about-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 3rem;
    align-items: start;
}

.qb-about-copy {
    max-width: var(--qb-reading);
}

.qb-about-copy p {
    font-size: 1.12rem;
    line-height: 1.9;
    margin: 0;
}

.qb-about-copy p + p {
    margin-top: 1.35rem;
}

.qb-about-copy strong {
    font-weight: 600;
}

.qb-about-question {
    margin-top: 2.5rem !important;
    color: var(--qb-muted);
    font-size: 1.16rem;
    line-height: 1.5;
    letter-spacing: -0.02em;
}

.qb-about-question span {
    display: block;
    margin-top: 0.45rem;
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    line-height: 1.08;
    color: var(--qb-text);
}

.qb-about-note {
    margin-top: 2rem !important;
    color: var(--qb-muted);
    font-size: 0.98rem;
}

.qb-note-card {
    padding: 1.5rem 1.5rem 1.35rem;
    border: 1px solid var(--qb-line);
    border-radius: var(--qb-radius);
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.52), transparent 42%),
        var(--qb-paper);
    box-shadow: var(--qb-shadow);
}

.qb-value-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.qb-value-list li {
    position: relative;
    padding-left: 1.15rem;
    color: var(--qb-text);
    line-height: 1.7;
}

.qb-value-list li + li {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--qb-line);
}

.qb-value-list li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--qb-muted);
}

/* Newsletter */

.qb-newsletter-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2rem;
    align-items: center;
    padding: 1.75rem 1.85rem;
    border: 1px solid var(--qb-line);
    border-radius: var(--qb-radius);
    background: var(--qb-paper);
    box-shadow: var(--qb-shadow);
}

.qb-newsletter-copy {
    max-width: 42rem;
}

.qb-newsletter-title {
    font-size: clamp(1.8rem, 3vw, 2.25rem);
    line-height: 1.04;
    margin: 0 0 0.4rem;
}

.qb-newsletter-text {
    font-size: 1.05rem;
    line-height: 1.65;
    margin: 0;
}

.qb-newsletter-form {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.qb-newsletter-form .form-control {
    min-width: 280px;
}

.qb-newsletter-feedback {
    width: 100%;
    padding-left: 0.5rem;
    color: var(--qb-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.qb-newsletter-cta {
    display: flex;
    justify-content: flex-end;
}

/* Article */

.qb-article-title {
    line-height: 1.02;
}

.qb-article-body p,
.qb-article-body li {
    font-size: 1.08rem;
    line-height: 1.8;
}

.qb-article-body > * + * {
    margin-top: 1.25rem;
}

.qb-article-body h2,
.qb-article-body h3 {
    font-family: Georgia, "Times New Roman", serif;
    letter-spacing: -0.03em;
    margin-top: 2rem;
}

.qb-article-cover img {
    max-height: 620px;
    object-fit: cover;
}

/* Admin */

.admin-shell {
    background: linear-gradient(180deg, #f8f4ed 0%, var(--qb-bg) 100%);
    min-height: calc(100vh - 140px);
}

.admin-auth-shell {
    display: grid;
    place-items: center;
}

.admin-card {
    background: rgba(251, 248, 242, 0.92);
    border: 1px solid var(--qb-line);
    border-radius: 22px;
    box-shadow: var(--qb-shadow);
}

.admin-kicker {
    color: var(--qb-muted);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.76rem;
    margin-bottom: 0.75rem;
}

.admin-title {
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1;
}

.admin-stat {
    background: rgba(251, 248, 242, 0.92);
    border: 1px solid var(--qb-line);
    border-radius: 18px;
    padding: 1rem 1.1rem;
    box-shadow: var(--qb-shadow);
}

.admin-stat span {
    display: block;
    color: var(--qb-muted);
    font-size: 0.92rem;
    margin-bottom: 0.4rem;
}

.admin-stat strong {
    font-size: 1.5rem;
    letter-spacing: -0.03em;
}

.admin-table th {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--qb-muted);
    background: rgba(30, 29, 26, 0.03);
}

.admin-table td,
.admin-table th {
    padding: 1rem 1.1rem;
}

.admin-preview-card {
    display: block;
}

.admin-image-preview img {
    max-height: 320px;
    object-fit: cover;
    width: 100%;
}

#previewBody {
    max-height: 280px;
    overflow: auto;
}

#previewBody > *:last-child {
    margin-bottom: 0;
}

/* Responsive */

@media (max-width: 1199.98px) {
    .qb-grid-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .qb-about-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: 2rem;
    }

    .qb-about-copy {
        max-width: 100%;
    }
}

@media (max-width: 991.98px) {
    .py-lg-6 {
        padding-top: 4.5rem !important;
        padding-bottom: 4.5rem !important;
    }

    .qb-display,
    .qb-display-wide {
        max-width: 100%;
    }

    .qb-section {
        padding-bottom: 4rem;
    }

    .qb-principle {
        padding: 0.5rem 0 3rem;
    }

    .qb-newsletter-card {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .qb-newsletter-form,
    .qb-newsletter-cta {
        justify-content: flex-start;
    }
}

@media (max-width: 767.98px) {
    .site-header-inner {
        flex-wrap: wrap;
        align-items: flex-start;
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
    }

    .nav {
        width: 100%;
        flex-wrap: wrap;
        gap: 0.75rem 1rem;
    }

    .qb-grid-3 {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .qb-story-footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .qb-newsletter-form {
        width: 100%;
    }

    .qb-newsletter-form .form-control {
        min-width: 100%;
    }

    .qb-about-copy p {
        font-size: 1.05rem;
        line-height: 1.8;
    }
}