/* =====================================================
   domain.edu.vn — DOMAIN BRIEF
   Tạp chí đầu tư tên miền · Magazine investor style
   Palette: navy + copper + paper
   ===================================================== */

:root {
    /* Navy (primary) */
    --navy-900: #0A1F38;
    --navy-800: #0E2B4D;
    --navy-700: #1A3A5F;
    --navy-600: #234970;
    --navy-500: #2D5089;
    --navy-400: #4A6FA8;
    --navy-300: #7290BC;

    /* Copper (accent) */
    --copper-900: #5C2A0E;
    --copper-700: #8B4513;
    --copper-500: #B87333;
    --copper-400: #C58E54;
    --copper-300: #D4A26A;
    --copper-200: #E5C29A;
    --copper-100: #F0DABA;

    /* Paper (background) */
    --paper:     #F5F1EA;
    --paper-50:  #FBF8F2;
    --paper-100: #EDE7DA;
    --paper-200: #DDD3BD;
    --paper-300: #C5B89C;

    /* Ink (text) */
    --ink-900: #161616;
    --ink-800: #2A2A2A;
    --ink-700: #3D3D3D;
    --ink-600: #555;
    --ink-500: #6B6B6B;
    --ink-400: #8A8A8A;

    /* Semantic */
    --bg-body:  var(--paper);
    --bg-card:  #FFFFFF;
    --bg-strip: var(--navy-900);

    /* Typography */
    --font-display: 'Playfair Display', 'Times New Roman', Georgia, serif;
    --font-body:    'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono:    'IBM Plex Mono', 'SFMono-Regular', ui-monospace, Menlo, monospace;

    /* Layout */
    --container-w: 1240px;
    --container-narrow: 780px;
    --gutter: 24px;
    --section-y: 88px;

    /* Shadow */
    --shadow-sm: 0 1px 2px rgba(10, 31, 56, 0.06);
    --shadow-md: 0 4px 12px rgba(10, 31, 56, 0.08);
    --shadow-lg: 0 12px 32px rgba(10, 31, 56, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--bg-body);
    color: var(--ink-800);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection { background: var(--copper-300); color: var(--navy-900); }

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

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 var(--gutter); }
.container--narrow { max-width: var(--container-narrow); }

a { color: var(--navy-600); text-decoration: underline; text-decoration-color: rgba(45, 80, 137, 0.3); text-underline-offset: 3px; transition: color 0.18s, text-decoration-color 0.18s; }
a:hover { color: var(--copper-700); text-decoration-color: var(--copper-500); }

h1, h2, h3, h4 { font-family: var(--font-display); color: var(--navy-900); font-weight: 700; line-height: 1.18; letter-spacing: -0.01em; margin: 0 0 0.5em; }

.serif { font-family: var(--font-display); font-style: italic; font-weight: 500; }
.mono  { font-family: var(--font-mono); }

/* ================== TICKER STRIP (top) ================== */
.ticker {
    background: var(--navy-900);
    color: var(--paper);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 8px 0;
    overflow: hidden;
    border-bottom: 1px solid var(--navy-700);
}
.ticker__inner { display: flex; gap: 48px; animation: tickerScroll 40s linear infinite; white-space: nowrap; }
.ticker__item { display: inline-flex; align-items: center; gap: 8px; }
.ticker__item::before { content: '◆'; color: var(--copper-500); font-size: 9px; }
.ticker__live { color: var(--copper-300); }
@keyframes tickerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ================== TOPBAR ================== */
.topbar {
    background: var(--paper);
    border-bottom: 2px solid var(--navy-900);
    position: sticky; top: 0; z-index: 50;
    box-shadow: var(--shadow-sm);
}
.topbar__inner {
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 14px var(--gutter);
    display: flex;
    align-items: center;
    gap: 24px;
}
.topbar__brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--navy-900);
}
.topbar__brand:hover { color: var(--copper-700); }
.topbar__logo { width: 40px; height: 40px; }
.topbar__name { font-family: var(--font-display); font-weight: 800; font-size: 22px; letter-spacing: 0.02em; line-height: 1; }
.topbar__name-tag { display: block; font-family: var(--font-mono); font-size: 9px; letter-spacing: 2px; color: var(--copper-700); margin-top: 2px; font-weight: 500; text-transform: uppercase; }

.topbar__nav { display: flex; gap: 24px; margin-left: auto; }
.topbar__nav a {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
    color: var(--ink-700);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}
.topbar__nav a:hover { color: var(--navy-900); border-bottom-color: var(--copper-500); }
.topbar__nav a.is-active { color: var(--navy-900); border-bottom-color: var(--copper-500); }

.topbar__actions { display: flex; align-items: center; gap: 14px; }
.topbar__cta {
    background: var(--navy-900);
    color: var(--paper);
    padding: 10px 18px;
    text-decoration: none;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid var(--navy-900);
    transition: all 0.2s;
}
.topbar__cta:hover { background: var(--copper-700); border-color: var(--copper-700); color: var(--paper); }

.topbar__hamburger {
    display: none;
    background: none;
    border: 1px solid var(--navy-700);
    border-radius: 0;
    padding: 8px 10px;
    cursor: pointer;
}
.topbar__hamburger span { display: block; width: 18px; height: 2px; background: var(--navy-900); margin: 3px 0; }

@media (max-width: 960px) {
    .topbar__nav { display: none; }
    .topbar__hamburger { display: block; }
    .topbar__cta { display: none; }
    .topbar__name { font-size: 18px; }
}

/* ================== LANG FLAGS ================== */
.lang-pair {
    display: inline-flex;
    border: 1px solid var(--paper-200);
    background: var(--bg-card);
    border-radius: 0;
}
.lang-flag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 10px;
    text-decoration: none;
    color: var(--ink-500);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 1.5px;
    opacity: 0.55;
    filter: grayscale(0.6);
    transition: all 0.2s;
    border-right: 1px solid var(--paper-200);
}
.lang-flag:last-child { border-right: 0; }
.lang-flag:hover { opacity: 0.9; filter: grayscale(0); }
.lang-flag.is-active {
    background: var(--navy-900);
    color: var(--copper-300);
    opacity: 1;
    filter: grayscale(0);
    cursor: default;
}
.lang-flag__ico { font-size: 14px; line-height: 1; }
@media (max-width: 960px) {
    .lang-flag__code { display: none; }
    .lang-flag { padding: 6px 8px; }
}

/* ================== DRAWER (mobile) ================== */
.drawer { position: fixed; inset: 0; z-index: 100; }
.drawer[hidden] { display: none; }
.drawer__backdrop { position: absolute; inset: 0; background: rgba(10, 31, 56, 0.55); }
.drawer__panel {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: 86%; max-width: 360px;
    background: var(--paper);
    box-shadow: -8px 0 24px rgba(10, 31, 56, 0.2);
    overflow-y: auto;
}
.drawer__head {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px;
    background: var(--navy-900);
    color: var(--paper);
    border-bottom: 2px solid var(--copper-500);
}
.drawer__head strong { font-family: var(--font-display); font-size: 20px; font-weight: 700; }
.drawer__close { background: none; border: 1px solid var(--paper); color: var(--paper); width: 32px; height: 32px; cursor: pointer; font-size: 18px; }
.drawer__nav { padding: 16px 20px; display: flex; flex-direction: column; }
.drawer__nav a {
    text-decoration: none;
    color: var(--ink-800);
    padding: 12px 0;
    border-bottom: 1px solid var(--paper-200);
    font-size: 15px;
    font-weight: 500;
}
.drawer__nav a:hover { color: var(--copper-700); }
.drawer__sep { height: 8px; }
.drawer__lang-label { font-family: var(--font-mono); color: var(--copper-700); font-size: 11px; letter-spacing: 2px; padding: 16px 0 8px; text-transform: uppercase; }
.drawer__lang-pair { display: flex; gap: 8px; }
.drawer__lang-flag {
    flex: 1;
    text-align: center;
    padding: 10px;
    border: 1px solid var(--paper-200);
    background: var(--bg-card);
    color: var(--ink-700);
    text-decoration: none;
    font-weight: 500;
    opacity: 0.65;
    transition: all 0.2s;
}
.drawer__lang-flag.is-active { background: var(--navy-900); color: var(--copper-300); border-color: var(--navy-900); opacity: 1; }

/* ================== HERO (cover story) ================== */
.cover {
    background: var(--paper);
    padding: 56px 0 72px;
    border-bottom: 1px solid var(--paper-200);
}
.cover__masthead {
    display: flex; align-items: baseline; gap: 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--copper-700);
    text-transform: uppercase;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--copper-300);
}
.cover__issue { color: var(--navy-900); font-weight: 700; }
.cover__date { color: var(--ink-500); }
.cover__live::before { content: '●'; color: #C53030; margin-right: 6px; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.cover__grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 48px;
    align-items: start;
}
.cover__main {}
.cover__cat-line {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--copper-700);
    text-transform: uppercase;
    font-weight: 500;
    margin-bottom: 18px;
}
.cover__cat-line::before { content: ''; width: 28px; height: 1px; background: var(--copper-500); }
.cover__title {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 60px);
    line-height: 1.05;
    color: var(--navy-900);
    margin: 0 0 24px;
    font-weight: 700;
    letter-spacing: -0.015em;
}
.cover__title em { font-style: italic; color: var(--copper-700); font-weight: 500; }
.cover__lede {
    font-size: 19px;
    line-height: 1.55;
    color: var(--ink-700);
    margin: 0 0 28px;
    font-weight: 400;
    max-width: 620px;
}
.cover__byline {
    display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
    padding-top: 18px;
    border-top: 1px solid var(--paper-200);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ink-500);
    letter-spacing: 0.5px;
}
.cover__byline strong { color: var(--navy-800); font-weight: 600; }
.cover__byline span { display: inline-flex; align-items: center; gap: 6px; }

.cover__sidebar { display: flex; flex-direction: column; gap: 24px; }
.cover__pick {
    background: var(--bg-card);
    padding: 24px;
    border: 1px solid var(--paper-200);
    border-top: 3px solid var(--copper-500);
}
.cover__pick-eyebrow {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 2.5px;
    color: var(--copper-700);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 12px;
}
.cover__pick-title { font-family: var(--font-display); font-size: 22px; line-height: 1.25; color: var(--navy-900); margin: 0 0 12px; font-weight: 600; }
.cover__pick-title a { color: inherit; text-decoration: none; }
.cover__pick-title a:hover { color: var(--copper-700); }
.cover__pick-meta { font-family: var(--font-mono); font-size: 11px; color: var(--ink-500); letter-spacing: 0.5px; }

.cover__data {
    background: var(--navy-900);
    color: var(--paper);
    padding: 24px;
    border-left: 3px solid var(--copper-500);
}
.cover__data-eyebrow {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 2.5px;
    color: var(--copper-300);
    text-transform: uppercase;
    margin-bottom: 14px;
}
.cover__data-stat {
    font-family: var(--font-display);
    font-size: 42px;
    line-height: 1;
    font-weight: 700;
    color: var(--copper-300);
    margin: 4px 0 6px;
}
.cover__data-stat small { font-size: 16px; color: var(--paper); margin-left: 6px; font-weight: 500; }
.cover__data-lb { font-size: 13px; color: var(--paper); opacity: 0.8; margin-bottom: 16px; line-height: 1.4; }
.cover__data-link { font-family: var(--font-mono); font-size: 11px; letter-spacing: 1.5px; color: var(--copper-300); text-decoration: none; text-transform: uppercase; }
.cover__data-link:hover { color: var(--paper); }

@media (max-width: 960px) {
    .cover__grid { grid-template-columns: 1fr; gap: 36px; }
    .cover__title { font-size: clamp(30px, 7vw, 44px); }
}

/* ================== SECTION HEAD ================== */
.section { padding: var(--section-y) 0; }
.section--alt { background: var(--paper-50); }
.section--dark { background: var(--navy-900); color: var(--paper); }
.section--dark h2, .section--dark h3 { color: var(--paper); }
.section--dark h2 em { color: var(--copper-300); }

.section__head { margin-bottom: 48px; max-width: 720px; }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section__head--ruled { display: flex; align-items: baseline; justify-content: space-between; padding-bottom: 16px; border-bottom: 2px solid var(--navy-900); margin-bottom: 36px; max-width: none; }

.eyebrow {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 2.5px;
    color: var(--copper-700);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 14px;
}
.section--dark .eyebrow { color: var(--copper-300); }

.section__head h2 {
    font-family: var(--font-display);
    font-size: clamp(28px, 3.5vw, 42px);
    line-height: 1.15;
    color: var(--navy-900);
    margin: 0 0 12px;
    font-weight: 700;
}
.section__head h2 em { font-style: italic; color: var(--copper-700); font-weight: 500; }
.section__head p { font-size: 16px; color: var(--ink-600); margin: 0; line-height: 1.6; }

.section__head-link {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--navy-700);
    text-decoration: none;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border-bottom: 1px solid currentColor;
    padding-bottom: 2px;
}
.section__head-link:hover { color: var(--copper-700); }

/* ================== BRIEFS GRID ================== */
.briefs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px 28px;
}
@media (max-width: 980px) { .briefs { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .briefs { grid-template-columns: 1fr; } }

.brief-card {
    background: var(--bg-card);
    border: 1px solid var(--paper-200);
    transition: all 0.25s;
    display: flex;
    flex-direction: column;
}
.brief-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--copper-300); }

.brief-card__cover {
    aspect-ratio: 16 / 10;
    background: var(--navy-700);
    overflow: hidden;
    position: relative;
    display: block;
}
.brief-card__cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}
.brief-card:hover .brief-card__cover-img { transform: scale(1.04); }
.brief-card__no {
    position: absolute;
    top: 12px; left: 12px;
    background: var(--navy-900);
    color: var(--copper-300);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 1.5px;
    padding: 4px 8px;
    z-index: 2;
    font-weight: 600;
    text-transform: uppercase;
}

.brief-card__body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.brief-card__cat {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--copper-700);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 10px;
}
.brief-card__title {
    font-family: var(--font-display);
    font-size: 20px;
    line-height: 1.25;
    color: var(--navy-900);
    margin: 0 0 12px;
    font-weight: 600;
}
.brief-card__title a { color: inherit; text-decoration: none; }
.brief-card__title a:hover { color: var(--copper-700); }

.brief-card__excerpt { color: var(--ink-600); font-size: 14.5px; line-height: 1.55; margin: 0 0 14px; flex: 1; }
.brief-card__meta {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-500);
    letter-spacing: 0.5px;
    padding-top: 12px;
    border-top: 1px solid var(--paper-200);
    display: flex; justify-content: space-between;
}

/* ================== ABOUT (the brief) ================== */
.about {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 32px;
}
@media (max-width: 800px) { .about { grid-template-columns: 1fr; } }
.about__col { padding-top: 24px; border-top: 2px solid var(--copper-500); }
.about__col-no {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--copper-700);
    letter-spacing: 2px;
    margin-bottom: 8px;
    font-weight: 700;
}
.about__col h3 { font-size: 22px; margin: 0 0 12px; line-height: 1.25; font-weight: 600; }
.about__col p { color: var(--ink-600); font-size: 15px; line-height: 1.6; margin: 0; }

/* ================== ARCHIVE TAGS ================== */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud--lg { gap: 10px; }
.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.5px;
    color: var(--navy-700);
    background: var(--bg-card);
    border: 1px solid var(--paper-200);
    text-decoration: none;
    transition: all 0.18s;
}
.tag-chip small { color: var(--ink-500); font-size: 10px; }
.tag-chip:hover { background: var(--navy-900); color: var(--copper-300); border-color: var(--navy-900); }
.tag-chip:hover small { color: var(--copper-300); }

.tag-cloud--lg .tag-chip { padding: 10px 16px; font-size: 13px; }

/* ================== SUBSCRIBE ================== */
.subscribe {
    background: var(--navy-900);
    color: var(--paper);
    padding: 56px 48px;
    border: 1px solid var(--navy-700);
    border-top: 4px solid var(--copper-500);
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: center;
}
@media (max-width: 800px) { .subscribe { grid-template-columns: 1fr; padding: 36px 24px; } }
.subscribe__title { font-family: var(--font-display); font-size: 36px; line-height: 1.15; color: var(--paper); margin: 0 0 14px; font-weight: 700; }
.subscribe__title em { color: var(--copper-300); font-style: italic; font-weight: 500; }
.subscribe__sub { color: var(--paper); opacity: 0.85; margin: 0 0 18px; font-size: 15px; line-height: 1.55; }
.subscribe__stats {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--copper-300);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 0;
}

.subscribe__form { display: flex; flex-direction: column; gap: 14px; }
.subscribe__form .field { display: flex; flex-direction: column; gap: 6px; }
.subscribe__form label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 1.5px; color: var(--copper-300); text-transform: uppercase; }
.subscribe__form input[type=email],
.subscribe__form input[type=text] {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--navy-600);
    color: var(--paper);
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 15px;
    border-radius: 0;
}
.subscribe__form input:focus { outline: none; border-color: var(--copper-500); background: rgba(255,255,255,0.08); }
.subscribe__form input::placeholder { color: rgba(255,255,255,0.4); }

.btn {
    display: inline-block;
    padding: 12px 22px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    border-radius: 0;
    text-align: center;
}
.btn--primary { background: var(--navy-900); color: var(--paper); border-color: var(--navy-900); }
.btn--primary:hover { background: var(--copper-700); border-color: var(--copper-700); color: var(--paper); }
.btn--copper { background: var(--copper-500); color: var(--navy-900); border-color: var(--copper-500); }
.btn--copper:hover { background: var(--copper-700); color: var(--paper); border-color: var(--copper-700); }
.btn--ghost { background: transparent; color: var(--navy-900); border-color: var(--navy-900); }
.btn--ghost:hover { background: var(--navy-900); color: var(--paper); }
.btn--ghost-light { background: transparent; color: var(--paper); border-color: var(--copper-300); }
.btn--ghost-light:hover { background: var(--copper-500); color: var(--navy-900); border-color: var(--copper-500); }
.btn--lg { padding: 16px 28px; font-size: 14px; }
.btn--block { display: block; width: 100%; }

.hp-field { position: absolute; left: -9999px; }
.form__notice { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.5px; min-height: 16px; }
.form__notice.is-success { color: var(--copper-300); }
.form__notice.is-error { color: #FCA5A5; }

/* ================== ARTICLE PAGE ================== */
.brief-page { background: var(--paper); padding: 48px 0 var(--section-y); }

.brief-bc {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-500);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 28px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--paper-200);
}
.brief-bc a { color: var(--ink-600); text-decoration: none; }
.brief-bc a:hover { color: var(--copper-700); }

.brief-meta-line {
    display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--copper-700);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 18px;
}
.brief-meta-line strong { color: var(--navy-900); font-weight: 700; }

.brief-title {
    font-family: var(--font-display);
    font-size: clamp(32px, 4.4vw, 52px);
    line-height: 1.08;
    color: var(--navy-900);
    margin: 0 0 22px;
    font-weight: 700;
    letter-spacing: -0.012em;
}

.brief-lede {
    font-size: 21px;
    line-height: 1.5;
    color: var(--ink-700);
    margin: 0 0 28px;
    font-weight: 400;
    max-width: 720px;
}
.brief-lede strong { color: var(--navy-900); font-weight: 600; }

.brief-byline {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ink-500);
    letter-spacing: 0.5px;
    padding: 16px 0;
    border-top: 1px solid var(--paper-200);
    border-bottom: 1px solid var(--paper-200);
    margin-bottom: 32px;
    display: flex; flex-wrap: wrap; gap: 20px;
}
.brief-byline strong { color: var(--navy-800); font-weight: 600; text-transform: uppercase; }

.brief-hero {
    aspect-ratio: 2 / 1;
    margin: 0 0 36px;
    background: var(--navy-700);
    overflow: hidden;
}
.brief-hero img { width: 100%; height: 100%; object-fit: cover; }

.brief-body {
    max-width: 720px;
    font-size: 17px;
    line-height: 1.75;
    color: var(--ink-800);
}
.brief-body > p:first-child::first-letter {
    font-family: var(--font-display);
    font-size: 64px;
    float: left;
    line-height: 0.92;
    margin: 4px 10px 0 0;
    font-weight: 700;
    color: var(--copper-700);
}
.brief-body p { margin: 0 0 1.4em; }
.brief-body h2 {
    font-family: var(--font-display);
    font-size: 28px;
    line-height: 1.2;
    margin: 1.8em 0 0.6em;
    color: var(--navy-900);
    font-weight: 700;
    padding-top: 0.4em;
    border-top: 2px solid var(--paper-200);
}
.brief-body h3 {
    font-family: var(--font-display);
    font-size: 22px;
    margin: 1.5em 0 0.5em;
    color: var(--navy-800);
    font-weight: 600;
}
.brief-body strong { color: var(--navy-900); font-weight: 600; }
.brief-body em { color: var(--copper-700); font-style: italic; }
.brief-body ul, .brief-body ol { margin: 0 0 1.4em; padding-left: 24px; }
.brief-body li { margin-bottom: 0.6em; }
.brief-body blockquote {
    border-left: 3px solid var(--copper-500);
    padding: 8px 24px;
    margin: 1.6em 0;
    background: var(--paper-50);
    font-family: var(--font-display);
    font-style: italic;
    font-size: 19px;
    line-height: 1.5;
    color: var(--navy-800);
}
.brief-body code {
    font-family: var(--font-mono);
    font-size: 14px;
    background: var(--paper-100);
    padding: 2px 6px;
    color: var(--navy-800);
}
.brief-body table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: 14px; }
.brief-body th, .brief-body td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--paper-200); }
.brief-body th { background: var(--paper-50); font-family: var(--font-mono); font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--navy-800); }

.brief-stat-card {
    background: var(--navy-900);
    color: var(--paper);
    padding: 24px 28px;
    margin: 2em 0;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
    border-left: 3px solid var(--copper-500);
}
.brief-stat { font-family: var(--font-mono); font-size: 11px; color: var(--copper-300); letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 6px; }
.brief-stat-num { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--paper); line-height: 1; }
.brief-stat-num em { color: var(--copper-300); font-style: italic; font-size: 16px; }
@media (max-width: 720px) { .brief-stat-card { grid-template-columns: 1fr; gap: 16px; } }

.brief-tags { padding: 28px 0; border-top: 1px solid var(--paper-200); margin-top: 36px; max-width: 720px; }
.brief-tags-label { display: block; font-family: var(--font-mono); font-size: 11px; color: var(--ink-500); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; }

.brief-cta {
    margin-top: 48px;
    background: var(--paper-100);
    padding: 36px 32px;
    border-left: 4px solid var(--copper-500);
    max-width: 720px;
}
.brief-cta h3 { font-family: var(--font-display); font-size: 26px; margin: 0 0 12px; color: var(--navy-900); font-weight: 700; }
.brief-cta p { font-size: 16px; color: var(--ink-700); line-height: 1.6; margin: 0 0 18px; }
.brief-cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

.brief-related { margin-top: 56px; padding-top: 36px; border-top: 2px solid var(--navy-900); }
.brief-related h3 {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--copper-700);
    margin: 0 0 24px;
    font-weight: 700;
}

/* ================== ARCHIVE PAGE ================== */
.archive-hero {
    background: var(--navy-900);
    color: var(--paper);
    padding: 64px 0;
    border-bottom: 4px solid var(--copper-500);
}
.archive-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(34px, 4.4vw, 52px);
    margin: 0 0 16px;
    line-height: 1.1;
    color: var(--paper);
    font-weight: 700;
}
.archive-hero h1 em { color: var(--copper-300); font-style: italic; font-weight: 500; }
.archive-hero p { font-size: 17px; color: var(--paper); opacity: 0.85; line-height: 1.55; max-width: 680px; }
.archive-hero .eyebrow { color: var(--copper-300); }

/* ================== FAQ ================== */
.faq { display: grid; gap: 12px; }
.faq__item { background: var(--bg-card); border: 1px solid var(--paper-200); padding: 18px 22px; }
.faq__item[open] { border-color: var(--copper-300); }
.faq__q {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    color: var(--navy-900);
    list-style: none;
    display: flex; justify-content: space-between; gap: 16px;
}
.faq__q::after { content: '+'; font-family: var(--font-body); font-size: 22px; color: var(--copper-700); transition: transform 0.2s; line-height: 1; flex-shrink: 0; }
.faq__item[open] .faq__q::after { content: '−'; }
.faq__q::-webkit-details-marker { display: none; }
.faq__a { padding-top: 12px; color: var(--ink-700); font-size: 15px; line-height: 1.6; }

/* ================== FOOTER (masthead) ================== */
.footer {
    background: var(--navy-900);
    color: var(--paper);
    padding: 64px 0 32px;
    margin-top: 0;
}
.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--navy-700);
}
@media (max-width: 800px) { .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; } }

.footer__brand-name { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--copper-300); margin: 0 0 6px; line-height: 1; }
.footer__brand-tag { font-family: var(--font-mono); font-size: 11px; color: var(--paper); opacity: 0.7; letter-spacing: 1px; margin: 0 0 16px; }
.footer__brand-desc { color: var(--paper); opacity: 0.75; font-size: 14px; line-height: 1.55; margin: 0 0 18px; max-width: 380px; }
.footer__social { display: flex; gap: 8px; }
.footer__social a {
    width: 32px; height: 32px;
    display: inline-flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.08);
    color: var(--copper-300);
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
    transition: all 0.2s;
}
.footer__social a:hover { background: var(--copper-500); color: var(--navy-900); }

.footer__col h4 {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--copper-300);
    text-transform: uppercase;
    margin: 0 0 16px;
    font-weight: 600;
}
.footer__col a {
    display: block;
    color: var(--paper);
    opacity: 0.8;
    text-decoration: none;
    font-size: 14px;
    padding: 5px 0;
    transition: opacity 0.2s;
}
.footer__col a:hover { opacity: 1; color: var(--copper-300); }

.footer__bottom {
    padding-top: 24px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--paper);
    opacity: 0.6;
    letter-spacing: 0.5px;
    text-align: center;
}
.footer__bottom a { color: var(--copper-300); text-decoration: none; }

/* ================== BOTTOM NAV (mobile) ================== */
.bottomnav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--navy-900);
    border-top: 2px solid var(--copper-500);
    display: none;
    z-index: 60;
}
@media (max-width: 720px) { .bottomnav { display: flex; } body { padding-bottom: 64px; } }
.bottomnav__item {
    flex: 1;
    text-align: center;
    color: var(--paper);
    text-decoration: none;
    padding: 8px 4px;
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.75;
}
.bottomnav__item:hover, .bottomnav__item.is-active { color: var(--copper-300); opacity: 1; }
.bottomnav__ico { display: block; font-size: 18px; line-height: 1; margin-bottom: 4px; }
.bottomnav__lb { display: block; font-size: 9px; }

/* ================== UTILS ================== */
@media (max-width: 720px) {
    :root { --section-y: 56px; --gutter: 16px; }
    .cover { padding: 36px 0 48px; }
}