/* ── BRAND BOOK ── */
  html, body { overflow-x: clip !important; overflow-y: visible !important; }

  .bb-body {
    background: var(--sec-2);
    overflow: visible;
    --line: rgba(255,255,255,.045);
  }
  .bb-body > .container { overflow: visible; }

  .bb-wrap {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 0;
    align-items: start;
    overflow: visible;
    position: relative;
  }

  /* ── SOL STICKY MENÜ ── */
  .bb-sidebar {
    position: -webkit-sticky;
    position: sticky;
    top: 84px;
    align-self: start;
    max-height: calc(100vh - 96px);
    overflow-y: auto;
    overflow-x: hidden;
    border: none;
    padding: 0;
    margin-top: var(--major-sec-pt, 5rem);
    margin-bottom: 1.4rem;
    background: #0c0c0c;
    z-index: 5;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,.12) transparent;
  }
  .bb-sidebar::-webkit-scrollbar { width: 3px; }
  .bb-sidebar::-webkit-scrollbar-track { background: transparent; }
  .bb-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.12); border-radius: 2px; }

  .bb-nav { padding: 0 .8rem; }
  .bb-nav__list { list-style: none; margin: 0; padding: 0; }
  .bb-nav__item { margin-bottom: .1rem; }
  .bb-nav__link {
    display: flex; align-items: center; gap: .65rem;
    padding: .55rem .7rem;
    font-family: var(--pp); font-size: .62rem; letter-spacing: .04em;
    text-transform: uppercase; color: rgba(255,255,255,.38);
    text-decoration: none;
    transition: color .2s, background .2s;
    position: relative;
  }
  .bb-nav__link::before {
    content: ''; position: absolute; left: 0; top: 50%;
    transform: translateY(-50%) scaleY(0);
    width: 2px; height: 60%; background: var(--red);
    transition: transform .2s;
  }
  .bb-nav__link:hover,
  .bb-nav__link.active { color: var(--white); background: rgba(255,255,255,.04); }
  .bb-nav__link.active::before { transform: translateY(-50%) scaleY(1); }
  .bb-nav__num {
    font-family: var(--pp); font-size: .44rem; letter-spacing: .2em;
    color: rgba(255,255,255,.22); flex-shrink: 0; transition: color .2s;
    font-weight: 600;
  }
  .bb-nav__link.active .bb-nav__num,
  .bb-nav__link:hover .bb-nav__num { color: var(--red); }
  .bb-nav__divider { height: 1px; background: var(--line); margin: .8rem .7rem; }

  /* ── Content ── */
  .bb-content { padding: 0; min-width: 0; }
  .bb-section, .bb-intro {
    scroll-margin-top: 90px;
  }
  .bb-section { padding: 4rem 3rem; position: relative; }
  .bb-section::after {
    content: ''; position: absolute; left: 3rem; right: 3rem; bottom: 0;
    height: 1px; background: var(--line);
  }
  .bb-section:last-child::after { display: none; }

  .bb-section__tag {
    font-family: var(--pp); font-size: .42rem; letter-spacing: .38em;
    text-transform: uppercase; color: var(--red); margin-bottom: .55rem;
    display: flex; align-items: center; gap: .6rem; opacity: .8;
  }
  .bb-section__tag::after { content: ''; flex: 1; height: 1px; max-width: 32px; background: var(--red); opacity: .35; }
  .bb-section__title {
    font-family: var(--sf); font-size: clamp(2rem,4.5vw,3.6rem);
    font-weight: 700; text-transform: uppercase; letter-spacing: -.035em;
    line-height: 1.05; color: var(--white); margin-bottom: 1.4rem;
  }
  .bb-section__title .dim { color: var(--red); }
  .bb-section__body {
    font-family: var(--pp); font-size: .74rem; color: rgba(255,255,255,.38);
    line-height: 1.8; max-width: 520px; margin-bottom: .4rem;
  }
  .bb-section__body strong { color: rgba(255,255,255,.65); font-weight: 500; }

  .bb-intro { padding: var(--major-sec-pt, 5rem) 3rem var(--major-sec-pb, 5rem); position: relative; background: transparent; }
  .bb-intro::after {
    content: ''; position: absolute; left: 3rem; right: 3rem; bottom: 0;
    height: 1px; background: var(--line);
  }
  .bb-intro__tag { font-family: var(--pp); font-size: .46rem; letter-spacing: .4em; text-transform: uppercase; color: var(--red); margin-bottom: .55rem; display: block; }
  .bb-intro__title { font-family: var(--sf); font-size: clamp(2rem,4.5vw,4rem); font-weight: 700; text-transform: uppercase; letter-spacing: -.04em; line-height: 1.0; color: var(--white); margin-bottom: 1.6rem; }
  .bb-intro__title span { color: var(--red); }
  .bb-intro__desc { font-family: var(--pp); font-size: .78rem; color: rgba(255,255,255,.4); line-height: 1.85; max-width: 440px; margin-bottom: 2rem; }
  .bb-intro__meta { display: flex; align-items: stretch; gap: 0; margin-top: .4rem; border: 1px solid var(--line); max-width: fit-content; }
  .bb-intro__meta-item { display: flex; flex-direction: column; gap: .35rem; padding: 1.1rem 1.8rem; border-right: 1px solid var(--line); }
  .bb-intro__meta-item:last-child { border-right: none; }
  .bb-intro__meta-label { font-family: var(--pp); font-size: .5rem; letter-spacing: .3em; text-transform: uppercase; color: rgba(255,255,255,.32); }
  .bb-intro__meta-val { font-family: var(--sf); font-size: 1.7rem; font-weight: 700; color: rgba(255,255,255,.82); text-transform: uppercase; letter-spacing: -.02em; line-height: 1; }

  .bb-logo-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 7px; margin-top: 1.8rem;
  }
  .bb-logo-card {
    padding: 3rem 2rem;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 1.4rem; position: relative;
    background: transparent;
    border: 1px solid var(--line);
    min-height: 240px;
    transition: background .4s ease, border-color .4s ease;
  }
  .bb-logo-card:hover { background: rgba(255,255,255,.012); border-color: rgba(255,255,255,.14); }
  .bb-logo-card__img {
    max-width: 75%; max-height: 130px; height: auto;
    object-fit: contain; display: block;
    transition: transform .35s cubic-bezier(.22,1,.36,1);
  }
  .bb-logo-card:hover .bb-logo-card__img { transform: scale(1.04); }
  .bb-logo-card--icon .bb-logo-card__img { max-height: 96px; }
  .bb-logo-card__label {
    font-family: var(--pp); font-size: .42rem;
    letter-spacing: .3em; text-transform: uppercase;
    color: rgba(255,255,255,.55); text-align: center;
  }
  .bb-logo-card__meta {
    font-family: var(--pp); font-size: .38rem;
    letter-spacing: .22em; text-transform: uppercase;
    color: rgba(255,255,255,.28); text-align: center;
    margin-top: -.6rem;
  }

  .bb-logo-variants { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 1.8rem; }
  .bb-logo-var { position: relative; display: flex; flex-direction: column; overflow: hidden; }
  .bb-logo-var__bg { height: 180px; display: flex; align-items: center; justify-content: center; padding: 2rem; position: relative; }
  .bb-logo-var__bg--black { background: #020202; }
  .bb-logo-var__bg--white { background: #f2f2f2; }
  .bb-logo-var__bg--red   { background: var(--red); }
  .bb-logo-var__bg--dark  { background: #111; }
  .bb-logo-var__img { max-width: 75%; max-height: 100%; object-fit: contain; display: block; }
  .bb-logo-var__footer { display: flex; align-items: center; justify-content: space-between; padding: .85rem 1.1rem; background: #080808; border: 1px solid var(--line); border-top: none; gap: 1rem; }
  .bb-logo-var__info { flex: 1; }
  .bb-logo-var__name { font-family: var(--sf); font-size: .95rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.01em; color: var(--white); line-height: 1; display: block; margin-bottom: .25rem; }
  .bb-logo-var__meta { font-family: var(--pp); font-size: .42rem; letter-spacing: .18em; text-transform: uppercase; color: rgba(255,255,255,.25); }
  .bb-logo-var__dl { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; flex-shrink: 0; border: 1px solid var(--line); color: rgba(255,255,255,.3); font-size: .75rem; text-decoration: none; transition: background .2s, border-color .2s, color .2s; }
  .bb-logo-var__dl:hover { background: var(--red); border-color: var(--red); color: #fff; }

  .bb-logo-usage { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; margin-top: 1.8rem; }
  .bb-logo-usage-card { padding: 1.8rem 1.5rem; background: #080808; border: 1px solid var(--line); display: flex; flex-direction: column; gap: .7rem; }
  .bb-logo-usage-card--do   { border-top: 2px solid rgba(255,255,255,.15); }
  .bb-logo-usage-card--dont { border-top: 2px solid var(--red); }
  .bb-logo-usage__badge { font-family: var(--pp); font-size: .38rem; letter-spacing: .22em; text-transform: uppercase; display: inline-flex; align-items: center; gap: .4rem; }
  .bb-logo-usage-card--do   .bb-logo-usage__badge { color: rgba(255,255,255,.35); }
  .bb-logo-usage-card--dont .bb-logo-usage__badge { color: var(--red); }
  .bb-logo-usage__visual { aspect-ratio: 16/7; background: #050505; border: 1px solid rgba(255,255,255,.06); display: flex; align-items: center; justify-content: center; overflow: hidden; }
  .bb-logo-usage__label { font-family: var(--pp); font-size: .48rem; color: rgba(255,255,255,.3); line-height: 1.6; }

  .bb-colors { display: grid; grid-template-columns: repeat(4,1fr); gap: 7px; margin-top: 1.8rem; }
  .bb-color-card { display: flex; flex-direction: column; overflow: hidden; }
  .bb-color-swatch { height: 96px; width: 100%; }
  .bb-color-info { padding: .85rem .9rem .8rem; background: #080808; border: 1px solid var(--line); border-top: none; }
  .bb-color-name { font-family: var(--sf); font-size: 1.09rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.01em; color: var(--white); margin-bottom: .5rem; }
  .bb-color-hex  { font-family: var(--pp); font-size: .54rem; letter-spacing: .14em; color: rgba(255,255,255,.38); text-transform: uppercase; display: block; margin-bottom: .25rem; }
  .bb-color-role { font-family: var(--pp); font-size: .5rem; letter-spacing: .08em; color: rgba(255,255,255,.28); text-transform: uppercase; }

  .bb-color-rule {
    margin-top: 1.4rem; display: grid;
    grid-template-columns: 12fr 4fr 3fr 1fr;
    gap: 4px; height: 180px;
  }
  .bb-color-rule-item {
    position: relative; padding: 1.2rem 1.1rem;
    display: flex; flex-direction: column; justify-content: flex-end;
    overflow: hidden; min-width: 0;
  }
  .bb-color-rule-item--dark  { background: #020202; border: 1px solid rgba(255,255,255,.06); }
  .bb-color-rule-item--grey  { background: #1A1A1A; }
  .bb-color-rule-item--white { background: #f2f2f2; }
  .bb-color-rule-item--red   { background: var(--red); }
  .bb-color-rule-bar { display: none; }
  .bb-color-rule-pct {
    font-family: var(--sf); font-size: clamp(.7rem, 1.75vw, 1.3rem);
    font-weight: 700; letter-spacing: -.03em; line-height: 1;
    margin-bottom: .35rem;
  }
  .bb-color-rule-label {
    font-family: var(--pp); font-size: .58rem; letter-spacing: .18em;
    text-transform: uppercase; line-height: 1.5; font-weight: 500;
  }
  .bb-color-rule-item:last-child .bb-color-rule-label {
    font-size: .48rem; letter-spacing: .12em;
  }
  .bb-color-rule-item:last-child .bb-color-rule-pct {
    font-size: clamp(.5rem, 1.2vw, .8rem);
  }
  .bb-color-rule-item--dark  .bb-color-rule-pct,
  .bb-color-rule-item--grey  .bb-color-rule-pct,
  .bb-color-rule-item--red   .bb-color-rule-pct   { color: var(--white); }
  .bb-color-rule-item--white .bb-color-rule-pct   { color: #020202; }
  .bb-color-rule-item--dark  .bb-color-rule-label { color: rgba(255,255,255,.5); }
  .bb-color-rule-item--grey  .bb-color-rule-label { color: rgba(255,255,255,.55); }
  .bb-color-rule-item--white .bb-color-rule-label { color: rgba(0,0,0,.55); }
  .bb-color-rule-item--red   .bb-color-rule-label { color: rgba(255,255,255,.85); }

  /* Typography */
  .bb-type-display { margin-top: 1.8rem; padding: 2.4rem 2.5rem; background: #060606; border: 1px solid var(--line); overflow: hidden; position: relative; }
  .bb-type-specimen { font-family: var(--sf); font-size: clamp(3.2rem,8vw,6.5rem); font-weight: 700; text-transform: uppercase; letter-spacing: -.04em; line-height: 1.0; color: var(--white); margin-bottom: .4rem; }
  .bb-type-specimen span { color: var(--red); }
  .bb-type-meta { font-family: var(--pp); font-size: .46rem; letter-spacing: .25em; text-transform: uppercase; color: rgba(255,255,255,.2); margin-top: 1rem; }
  .bb-type-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 1.8rem; }
  .bb-type-card { padding: 2rem 1.8rem; background: #080808; border: 1px solid var(--line); transition: background .4s ease, border-color .4s ease; }
  .bb-type-card:hover { background: #0c0c0c; border-color: rgba(255,255,255,.14); }
  .bb-type-card__label { font-family: var(--pp); font-size: .4rem; letter-spacing: .3em; text-transform: uppercase; color: rgba(255,255,255,.18); margin-bottom: 1.2rem; display: block; }
  .bb-type-card__sample-sf { font-family: var(--sf); font-size: 2.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.025em; line-height: 1; color: var(--white); margin-bottom: .8rem; }
  .bb-type-card__sample-pp { font-family: var(--pp); font-size: .82rem; color: rgba(255,255,255,.55); line-height: 1.9; }
  .bb-type-card__detail { font-family: var(--pp); font-size: .42rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.18); margin-top: 1.2rem; }

  .bb-type-scale { margin-top: 2.5rem; }
  .bb-type-scale-row { display: flex; align-items: baseline; gap: 1.5rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
  .bb-type-scale-row:first-child { border-top: 1px solid var(--line); }
  .bb-type-scale-name { font-family: var(--pp); font-size: .42rem; letter-spacing: .22em; text-transform: uppercase; color: rgba(255,255,255,.2); flex-shrink: 0; width: 100px; }
  .bb-type-scale-sample { flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  .bb-type-scale-spec { font-family: var(--pp); font-size: .42rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.18); flex-shrink: 0; }

  /* Voice & Tone */
  .bb-voice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 1.8rem; }
  .bb-voice-card { padding: 1.8rem 1.6rem; background: #060606; border: 1px solid var(--line); transition: background .4s ease, border-color .4s ease; }
  .bb-voice-card:hover { background: #0a0a0a; border-color: rgba(255,255,255,.14); }
  .bb-voice-card--do   { border-top: 1.5px solid rgba(255,255,255,.15); }
  .bb-voice-card--dont { border-top: 1.5px solid var(--red); }
  .bb-voice-card__header { font-family: var(--pp); font-size: .44rem; letter-spacing: .3em; text-transform: uppercase; margin-bottom: 1.2rem; display: flex; align-items: center; gap: .5rem; }
  .bb-voice-card--do   .bb-voice-card__header { color: rgba(255,255,255,.4); }
  .bb-voice-card--dont .bb-voice-card__header { color: var(--red); }
  .bb-voice-card__header i { font-size: .6rem; }
  .bb-voice-item { font-family: var(--pp); font-size: .72rem; color: rgba(255,255,255,.55); line-height: 1.6; padding: .7rem 0; border-bottom: 1px solid rgba(255,255,255,.05); display: flex; gap: .6rem; align-items: flex-start; }
  .bb-voice-item:last-child { border-bottom: none; }
  .bb-voice-item::before { content: '—'; color: rgba(255,255,255,.18); flex-shrink: 0; margin-top: .05em; font-size: .65rem; }
  .bb-voice-card--dont .bb-voice-item::before { color: rgba(233,32,56,.4); }

  /* Principles */
  .bb-principles { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; margin-top: 1.8rem; }
  .bb-principle { padding: 1.8rem 1.6rem; background: #060606; border: 1px solid var(--line); position: relative; transition: background .4s ease, border-color .4s ease; }
  .bb-principle:hover { background: #0a0a0a; border-color: rgba(255,255,255,.14); }
  .bb-principle__num { font-family: var(--pp); font-size: .4rem; font-weight: 400; color: rgba(255,255,255,.15); letter-spacing: .3em; line-height: 1; margin-bottom: .9rem; text-transform: uppercase; }
  /* Başlık %20 büyük */
  .bb-principle__title { font-family: var(--sf); font-size: 1.44rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.01em; color: var(--white); margin-bottom: .55rem; line-height: 1; }
  .bb-principle__body { font-family: var(--pp); font-size: .6rem; color: rgba(255,255,255,.26); line-height: 1.65; }
  .bb-principle__accent { width: 16px; height: 1.5px; background: var(--red); margin-bottom: .8rem; opacity: .7; }

  /* Character */
  .bb-char-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; margin-top: 1.8rem; }
  .bb-char-card { padding: 1.8rem 1.6rem; background: #060606; border: 1px solid var(--line); position: relative; transition: background .4s ease, border-color .4s ease; }
  .bb-char-card:hover { background: #0a0a0a; border-color: rgba(255,255,255,.14); }
  .bb-char-card__num { font-family: var(--pp); font-size: .4rem; font-weight: 400; color: rgba(255,255,255,.15); letter-spacing: .3em; line-height: 1; margin-bottom: .9rem; display: block; text-transform: uppercase; }
  .bb-char-card__title { font-family: var(--sf); font-size: 1.58rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.02em; color: var(--white); margin-bottom: .6rem; line-height: 1; }
  .bb-char-card__body { font-family: var(--pp); font-size: .62rem; color: rgba(255,255,255,.28); line-height: 1.7; }

  .bb-values-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; margin-top: 1.8rem; }
  .bb-value-card { padding: 1.8rem 1.6rem; background: #060606; border: 1px solid var(--line); position: relative; transition: background .4s ease, border-color .4s ease; display: flex; flex-direction: column; gap: .6rem; }
  .bb-value-card:hover { background: #0a0a0a; border-color: rgba(255,255,255,.14); }
  .bb-value-card__index { font-family: var(--pp); font-size: .4rem; font-weight: 400; letter-spacing: .3em; text-transform: uppercase; color: rgba(255,255,255,.15); }
  .bb-value-card__icon { font-size: 1.1rem; color: rgba(255,255,255,.12); margin-bottom: .2rem; transition: color .2s; }
  .bb-value-card:hover .bb-value-card__icon { color: var(--red); }
  .bb-value-card__title { font-family: var(--sf); font-size: 1.58rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.02em; color: var(--white); line-height: 1.1; }
  .bb-value-card__body { font-family: var(--pp); font-size: .62rem; color: rgba(255,255,255,.32); line-height: 1.75; flex: 1; }
  .bb-value-card__tag { font-family: var(--pp); font-size: .38rem; letter-spacing: .26em; text-transform: uppercase; color: var(--red); margin-top: auto; }

  .bb-promise { margin-top: 1.8rem; padding: 2.2rem; background: #060606; border: 1px solid var(--line); position: relative; overflow: hidden; transition: background .4s ease, border-color .4s ease; }
  .bb-promise:hover { background: #0a0a0a; border-color: rgba(255,255,255,.14); }
  .bb-promise::after { content: '"'; position: absolute; right: -.5rem; top: -1rem; font-family: var(--sf); font-size: 12rem; color: rgba(255,255,255,.025); pointer-events: none; line-height: 1; }
  .bb-promise__label { font-family: var(--pp); font-size: .4rem; letter-spacing: .34em; text-transform: uppercase; color: var(--red); margin-bottom: 1rem; display: block; opacity: .8; }
  .bb-promise__quote { font-family: var(--sf); font-size: clamp(1.2rem,2.5vw,2rem); font-weight: 700; text-transform: uppercase; letter-spacing: -.03em; color: var(--white); line-height: 1.15; margin: 0 0 .8rem; border: none; padding: 0; }
  .bb-promise__sub { font-family: var(--pp); font-size: .6rem; color: rgba(255,255,255,.24); line-height: 1.7; max-width: 400px; }

  /* Approach */
  .bb-approach-steps { display: grid; grid-template-columns: repeat(5,1fr); gap: 7px; margin-top: 1.8rem; }
  .bb-approach-step { padding: 1.8rem 1.6rem; background: #060606; border: 1px solid var(--line); display: flex; flex-direction: column; gap: .5rem; transition: background .4s ease, border-color .4s ease; }
  .bb-approach-step:hover { background: #0a0a0a; border-color: rgba(255,255,255,.14); }
  .bb-approach-step__num { font-family: var(--pp); font-size: .4rem; font-weight: 400; color: rgba(255,255,255,.15); letter-spacing: .3em; line-height: 1; text-transform: uppercase; }
  .bb-approach-step__bar { width: 20px; height: 1.5px; background: var(--red); margin: .3rem 0; opacity: .7; }
  .bb-approach-step__title { font-family: var(--sf); font-size: 1.26rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.02em; color: var(--white); line-height: 1; }
  .bb-approach-step__body { font-family: var(--pp); font-size: .58rem; color: rgba(255,255,255,.26); line-height: 1.65; }
  .bb-approach-statement { display: flex; align-items: center; gap: 1.2rem; margin-top: 1px; padding: 1.6rem 2rem; background: #050505; border: 1px solid var(--line); border-top: none; overflow-x: auto; }
  .bb-approach-statement__line { font-family: var(--sf); font-size: clamp(1.2rem,2.5vw,2rem); font-weight: 700; text-transform: uppercase; letter-spacing: -.03em; color: var(--white); white-space: nowrap; }
  .bb-approach-statement__line.dim { color: rgba(255,255,255,.2); }
  .bb-approach-statement__sep { font-family: var(--sf); font-size: 1.1rem; font-weight: 700; color: var(--red); opacity: .7; }
  .bb-approach-statement__eq { font-family: var(--sf); font-size: 1.6rem; font-weight: 700; color: rgba(255,255,255,.12); margin: 0 .3rem; }
  .bb-approach-statement__result { font-family: var(--sf); font-size: clamp(1.2rem,2.5vw,2rem); font-weight: 700; text-transform: uppercase; letter-spacing: -.03em; color: var(--red); white-space: nowrap; }

  /* Mockups */
  .bb-mockup-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; margin-top: 1.8rem; }
  .bb-mockup-card { display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); transition: border-color .4s ease; }
  .bb-mockup-card:hover { border-color: rgba(255,255,255,.14); }
  .bb-mockup-card__img { aspect-ratio: 4/3; overflow: hidden; background: #050505; }
  .bb-mockup-card__img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
  .bb-mockup-card:hover .bb-mockup-card__img img { transform: scale(1.04); }
  .bb-mockup-card__footer { padding: 1rem 1.2rem; background: #080808; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: .3rem; }
  .bb-mockup-card__name { font-family: var(--sf); font-size: 1rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.01em; color: var(--white); line-height: 1; }
  .bb-mockup-card__rule { font-family: var(--pp); font-size: .48rem; letter-spacing: .08em; color: rgba(255,255,255,.25); line-height: 1.5; }

  .bb-mockup-rules { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 1.8rem; }
  .bb-mockup-rule { display: flex; align-items: flex-start; gap: 1.2rem; padding: 1.6rem 1.5rem; background: #080808; border: 1px solid var(--line); }
  .bb-mockup-rule--do   { border-left: 2px solid rgba(255,255,255,.15); }
  .bb-mockup-rule--dont { border-left: 2px solid var(--red); }
  .bb-mockup-rule__icon { font-size: .9rem; flex-shrink: 0; margin-top: .15rem; }
  .bb-mockup-rule--do   .bb-mockup-rule__icon { color: rgba(255,255,255,.3); }
  .bb-mockup-rule--dont .bb-mockup-rule__icon { color: var(--red); }
  .bb-mockup-rule__title { font-family: var(--sf); font-size: .95rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.01em; color: var(--white); margin-bottom: .4rem; line-height: 1; }
  .bb-mockup-rule__body { font-family: var(--pp); font-size: .58rem; color: rgba(255,255,255,.28); line-height: 1.65; }

  /* Imagery */
  .bb-imagery-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; margin-top: 2.4rem; }
  .bb-imagery-card { aspect-ratio: 4/3; background: #090909; border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
  .bb-imagery-card__inner { display: flex; flex-direction: column; align-items: center; gap: .6rem; }
  .bb-imagery-card__icon { font-size: 1.82rem; color: rgba(255,255,255,.08); }
  .bb-imagery-card__label { font-family: var(--pp); font-size: .60rem; letter-spacing: .22em; text-transform: uppercase; color: rgba(255,255,255,.30); }
  .bb-imagery-card--dark { background: #0a0a0a; }
  .bb-imagery-card--grid {
    background: repeating-linear-gradient(0deg,transparent,transparent 29px,rgba(255,255,255,.025) 30px),
    repeating-linear-gradient(90deg,transparent,transparent 29px,rgba(255,255,255,.025) 30px);
    background-color: #0c0c0c;
  }

  /* Spacing */
  .bb-spacing-demo { margin-top: 2.4rem; display: grid; grid-template-columns: repeat(4,1fr); gap: 7px; }
  .bb-spacing-unit { padding: 1.2rem 1rem; background: #080808; border: 1px solid var(--line); display: flex; flex-direction: column; gap: .5rem; }
  .bb-spacing-bar { background: var(--red); opacity: .7; width: 100%; }
  .bb-spacing-val { font-family: var(--sf); font-size: 1.2rem; font-weight: 700; color: var(--white); letter-spacing: -.01em; }
  .bb-spacing-label { font-family: var(--pp); font-size: .4rem; letter-spacing: .2em; text-transform: uppercase; color: rgba(255,255,255,.2); }

  /* Downloads */
  .bb-dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 2.4rem; }
  .bb-dl-card { padding: 2rem 1.8rem; background: #080808; border: 1px solid var(--line); display: flex; align-items: flex-start; justify-content: space-between; gap: 1.5rem; transition: background .2s, border-color .2s; text-decoration: none; }
  .bb-dl-card:hover { background: #0d0d0d; border-color: rgba(255,255,255,.1); }
  .bb-dl-card__info { flex: 1; }
  .bb-dl-card__icon-wrap { width: 44px; height: 44px; border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: rgba(255,255,255,.3); font-size: .9rem; transition: background .2s, border-color .2s, color .2s; }
  .bb-dl-card:hover .bb-dl-card__icon-wrap { background: var(--red); border-color: var(--red); color: #fff; }
  .bb-dl-card__title { font-family: var(--sf); font-size: 1.27rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.01em; color: var(--white); margin-bottom: .4rem; line-height: 1; }
  .bb-dl-card__desc { font-family: var(--pp); font-size: .52rem; color: rgba(255,255,255,.28); line-height: 1.6; }
  .bb-dl-card__format { font-family: var(--pp); font-size: .4rem; letter-spacing: .24em; text-transform: uppercase; color: var(--red); margin-top: .6rem; display: block; }

  .bb-dl-logo-list { margin-top: 2.4rem; border: 1px solid var(--line); }
  .bb-dl-logo-list__label { font-family: var(--pp); font-size: .44rem; letter-spacing: .36em; text-transform: uppercase; color: rgba(255,255,255,.2); padding: .9rem 1.2rem; border-bottom: 1px solid var(--line); display: block; background: #060606; }
  .bb-dl-logo-row { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.2rem; border-bottom: 1px solid var(--line); text-decoration: none; transition: background .2s; }
  .bb-dl-logo-row:last-child { border-bottom: none; }
  .bb-dl-logo-row:hover { background: rgba(255,255,255,.03); }
  .bb-dl-logo-row__name { font-family: var(--sf); font-size: .95rem; font-weight: 700; text-transform: uppercase; letter-spacing: -.01em; color: var(--white); flex: 1; }
  .bb-dl-logo-row__meta { font-family: var(--pp); font-size: .48rem; letter-spacing: .18em; text-transform: uppercase; color: rgba(255,255,255,.25); }
  .bb-dl-logo-row__dl { font-family: var(--pp); font-size: .48rem; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.3); display: flex; align-items: center; gap: .4rem; transition: color .2s; }
  .bb-dl-logo-row:hover .bb-dl-logo-row__dl { color: var(--red); }

  /* ── VISUAL SECTIONS ── */
  .bb-section--visual .bb-section__body { max-width: 580px; }

  .bb-visual-feature {
    margin: 2.4rem 0 0; position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #050505;
    border: 1px solid var(--line);
  }
  .bb-visual-feature__img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    filter: grayscale(.4) contrast(1.05);
    transition: transform .8s cubic-bezier(.22,1,.36,1), filter .6s;
  }
  .bb-visual-feature:hover .bb-visual-feature__img {
    transform: scale(1.04);
    filter: grayscale(0) contrast(1);
  }
  .bb-visual-feature__cap {
    position: absolute; left: 0; right: 0; bottom: 0;
    padding: 1.4rem 1.6rem;
    background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,.78) 100%);
    display: flex; flex-direction: column; gap: .35rem;
  }
  .bb-visual-feature__lbl {
    font-family: var(--pp); font-size: .42rem;
    letter-spacing: .38em; text-transform: uppercase;
    color: var(--red); font-weight: 600;
  }
  .bb-visual-feature__txt {
    font-family: var(--sf); font-size: 1.15rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: -.01em;
    color: #fff; line-height: 1.1;
  }

  /* Visual System */
  .bb-poster-grid {
    margin-top: 1.8rem;
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 7px;
  }
  .bb-poster {
    position: relative; margin: 0;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: #050505;
    border: 1px solid var(--line);
  }
  .bb-poster__img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .7s cubic-bezier(.22,1,.36,1);
  }
  .bb-poster:hover .bb-poster__img { transform: scale(1.06); }
  .bb-poster__cap {
    position: absolute; left: 0; right: 0; bottom: 0;
    padding: .9rem 1rem;
    background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,.85) 100%);
    display: flex; align-items: baseline; gap: .8rem;
  }
  .bb-poster__num {
    font-family: var(--pp); font-size: .42rem;
    letter-spacing: .3em; color: var(--red);
    font-weight: 600;
  }
  .bb-poster__lbl {
    font-family: var(--sf); font-size: .95rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: -.01em;
    color: #fff; line-height: 1;
  }

  /* In the Wild */
  .bb-wild-stack {
    margin-top: 1.8rem;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 7px;
  }
  .bb-wild-card {
    position: relative; margin: 0;
    aspect-ratio: 4 / 5;
    overflow: hidden;
    background: #050505;
    border: 1px solid var(--line);
  }
  .bb-wild-card__img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .8s cubic-bezier(.22,1,.36,1);
  }
  .bb-wild-card:hover .bb-wild-card__img { transform: scale(1.04); }
  .bb-wild-card__cap {
    position: absolute; left: 0; right: 0; bottom: 0;
    padding: 1.2rem 1.4rem;
    background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,.82) 100%);
    display: flex; flex-direction: column; gap: .3rem;
  }
  .bb-wild-card__lbl {
    font-family: var(--sf); font-size: 1rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: -.01em;
    color: #fff; line-height: 1;
  }
  .bb-wild-card__txt {
    font-family: var(--pp); font-size: .48rem;
    letter-spacing: .14em; text-transform: uppercase;
    color: rgba(255,255,255,.55);
  }

  /* ── Brand in People ── */
  .bb-people-grid {
    margin-top: 2.4rem; display: grid; gap: 7px;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: 280px 280px;
  }
  .bb-people-cell {
    position: relative; overflow: hidden; min-width: 0;
  }
  .bb-people-cell img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .8s cubic-bezier(.22,1,.36,1), filter .5s;
    filter: contrast(1.05) saturate(1.05);
  }
  .bb-people-cell:hover img { transform: scale(1.05); }
  .bb-people-cell::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(2,2,2,.7) 100%);
    pointer-events: none;
  }
  .bb-people-cell--wide { grid-column: span 3; }
  .bb-people-cell--tall { grid-row: span 2; }
  .bb-people-cell--sq   { grid-column: span 2; }
  .bb-people-cell__cap {
    position: absolute; left: 1rem; bottom: .9rem; z-index: 2;
    font-family: var(--pp); font-size: .42rem; letter-spacing: .25em;
    text-transform: uppercase; color: rgba(255,255,255,.85);
    display: flex; align-items: center; gap: .5rem;
  }
  .bb-people-cell__cap::before {
    content: ''; width: 16px; height: 1px; background: var(--red);
  }
  .bb-people-cell--accent {
    background: var(--red);
    display: flex; flex-direction: column; justify-content: space-between;
    padding: 1.4rem 1.2rem;
  }
  .bb-people-cell--accent::after { display: none; }
  .bb-people-cell--accent .bb-people-num {
    font-family: var(--sf); font-size: 3.4rem; font-weight: 700;
    color: #fff; line-height: .9; letter-spacing: -.04em;
  }
  .bb-people-cell--accent .bb-people-lbl {
    font-family: var(--pp); font-size: .46rem;
    letter-spacing: .28em; text-transform: uppercase;
    color: rgba(255,255,255,.85); line-height: 1.4;
  }

  /* ── Visual enrichment helpers ── */

  .bb-intro--split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 3rem; align-items: stretch; }
  .bb-intro-visual { position: relative; aspect-ratio: 1/1; overflow: hidden; max-height: 100%; }
  .bb-intro-visual img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.25) contrast(1.05); transition: filter .6s, transform .8s cubic-bezier(.22,1,.36,1); }
  .bb-intro-visual:hover img { filter: grayscale(0) contrast(1.08); transform: scale(1.03); }
  .bb-intro-visual::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(2,2,2,.55) 100%);
    pointer-events: none;
  }
  .bb-intro-visual__cap {
    position: absolute; left: 1.1rem; bottom: 1rem;
    font-family: var(--pp); font-size: .42rem; letter-spacing: .25em;
    text-transform: uppercase; color: rgba(255,255,255,.75);
    display: flex; align-items: center; gap: .5rem;
  }
  .bb-intro-visual__cap::before {
    content: ''; width: 18px; height: 1px; background: var(--red);
  }

  .bb-image-band { margin-top: 2.5rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
  .bb-image-band__cell { position: relative; aspect-ratio: 4/5; overflow: hidden; }
  .bb-image-band__cell img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.4); transition: filter .5s, transform .7s cubic-bezier(.22,1,.36,1); }
  .bb-image-band__cell:hover img { filter: grayscale(0); transform: scale(1.04); }
  .bb-image-band__cell::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0) 60%, rgba(2,2,2,.7) 100%);
    pointer-events: none;
  }
  .bb-image-band__lbl {
    position: absolute; left: .9rem; bottom: .8rem;
    font-family: var(--pp); font-size: .42rem; letter-spacing: .22em;
    text-transform: uppercase; color: rgba(255,255,255,.8); z-index: 2;
  }

  .bb-mosaic {
    margin-top: 2.5rem; display: grid; gap: 7px;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: 220px 220px;
  }
  .bb-mosaic__cell { position: relative; overflow: hidden; }
  .bb-mosaic__cell img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.5) contrast(1.05); transition: filter .5s, transform .7s; }
  .bb-mosaic__cell:hover img { filter: grayscale(0) contrast(1.05); transform: scale(1.05); }
  .bb-mosaic__cell--wide { grid-column: span 2; }
  .bb-mosaic__cell--tall { grid-row: span 2; }
  .bb-mosaic__cell::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0) 65%, rgba(2,2,2,.55) 100%);
    pointer-events: none;
  }

  /* Pull-quote card with image */
  .bb-quote-card {
    margin-top: 2rem; position: relative; overflow: hidden;
    aspect-ratio: 21/9;
    display: flex; align-items: flex-end; padding: 2.2rem;
  }
  .bb-quote-card__bg {
    position: absolute; inset: 0; z-index: 0;
  }
  .bb-quote-card__bg img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.15) brightness(.42); }
  .bb-quote-card__bg::after {
    content: ''; position: absolute; inset: 0;
    background:
      linear-gradient(90deg, rgba(6,6,6,.92) 0%, rgba(6,6,6,.65) 55%, rgba(6,6,6,.35) 100%),
      radial-gradient(ellipse at 80% 100%, rgba(233,32,56,.06) 0%, transparent 60%);
  }
  .bb-quote-card__content { position: relative; z-index: 2; max-width: 720px; }
  .bb-quote-card__mark {
    font-family: var(--sf); font-size: 4rem; line-height: .6; color: var(--red);
    margin-bottom: .4rem; display: block;
  }
  .bb-quote-card__text {
    font-family: var(--sf); font-weight: 700;
    font-size: clamp(1.4rem, 3.2vw, 2.4rem); line-height: 1.1;
    color: var(--white); letter-spacing: -.02em; text-transform: uppercase;
    margin-bottom: 1.2rem;
  }
  .bb-quote-card__text em { color: var(--red); font-style: normal; }
  .bb-quote-card__cite {
    font-family: var(--pp); font-size: .48rem; letter-spacing: .25em;
    text-transform: uppercase; color: rgba(255,255,255,.65);
  }

  .bb-color-action {
    margin-top: 2.4rem; display: grid; gap: 7px;
    grid-template-columns: 1.5fr 1fr 1fr;
    height: 240px;
  }
  .bb-color-action__cell { position: relative; overflow: hidden; }
  .bb-color-action__cell img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s; }
  .bb-color-action__cell:hover img { transform: scale(1.05); }
  .bb-color-action__cell::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(2,2,2,.7) 100%);
    pointer-events: none;
  }
  .bb-color-action__tag {
    position: absolute; left: .9rem; bottom: .7rem; z-index: 2;
    font-family: var(--pp); font-size: .42rem; letter-spacing: .22em;
    text-transform: uppercase; color: rgba(255,255,255,.85);
  }

  .bb-approach-step { position: relative; }

  .bb-will-reveal { opacity: 1; transform: none; }
  .bb-will-reveal.bb-revealed { opacity: 1; transform: none; }

  /* Responsive */
  @media (max-width: 860px) {
    .bb-approach-steps { grid-template-columns: 1fr 1fr; }
    .bb-mockup-grid    { grid-template-columns: 1fr 1fr; }
    .bb-mockup-rules   { grid-template-columns: 1fr; }
    .bb-logo-variants  { grid-template-columns: 1fr; }
    .bb-logo-usage     { grid-template-columns: 1fr 1fr; }
    /* Visual sections */
    .bb-poster-grid    { grid-template-columns: 1fr; }
    .bb-wild-stack     { grid-template-columns: 1fr; }
    .bb-visual-feature { aspect-ratio: 4 / 3; }
    .bb-wrap { grid-template-columns: 1fr; }
    .bb-sidebar {
      position: sticky; top: 72px;
      max-height: none; height: auto;
      border-right: none; border-bottom: 1px solid var(--line);
      padding: .6rem 0;
      overflow-x: auto; overflow-y: hidden;
      background: rgba(8,8,8,.96);
      backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
      z-index: 80;
    }
    .bb-nav { padding: 0 .6rem; }
    .bb-nav__list { display: flex; flex-wrap: nowrap; gap: .15rem; }
    .bb-nav__item { flex-shrink: 0; }
    .bb-nav__link { padding: .55rem .7rem; font-size: .5rem; white-space: nowrap; }
    .bb-nav__link::before { display: none; }
    .bb-nav__link.active { background: rgba(233,32,56,.08); }
    .bb-nav__divider { display: none; }
    .bb-section { padding: 3rem 1rem; }
    .bb-section::after { left: 1rem; right: 1rem; }
    .bb-intro { padding: 3rem 1rem; }
    .bb-intro::after { left: 1rem; right: 1rem; }
    /* Mobil */
    .bb-color-rule {
      grid-template-columns: 1fr;
      grid-template-rows: 12fr 4fr 3fr 1fr;
      height: 420px;
    }
    .bb-colors { grid-template-columns: repeat(2, 1fr); }
    /* Visual enrichment */
    .bb-intro--split { grid-template-columns: 1fr; gap: 2rem; }
    .bb-intro-visual { aspect-ratio: 16/10; max-height: 320px; margin-top: 0; }
    .bb-nav { padding: 0 .6rem; }
    .bb-image-band { grid-template-columns: 1fr 1fr; }
    .bb-image-band__cell:nth-child(3) { display: none; }
    .bb-mosaic { grid-template-columns: 1fr 1fr; grid-template-rows: 180px 180px 180px; }
    .bb-mosaic__cell--wide { grid-column: span 2; }
    .bb-mosaic__cell--tall { grid-row: auto; }
    .bb-quote-card { aspect-ratio: 4/5; padding: 1.6rem; }
    .bb-color-action { grid-template-columns: 1fr 1fr; height: auto; grid-auto-rows: 160px; }
    .bb-color-action__cell:first-child { grid-column: span 2; }
    .bb-logo-grid { grid-template-columns: 1fr 1fr; }
    .bb-logo-card { padding: 2rem 1.2rem; min-height: 180px; }
    .bb-logo-card__img { max-height: 90px; }
    .bb-people-grid {
      grid-template-columns: 1fr 1fr;
      grid-template-rows: repeat(4, 200px);
    }
    .bb-people-cell--wide { grid-column: span 2; }
    .bb-people-cell--tall { grid-row: span 1; }
    .bb-people-cell--sq   { grid-column: span 1; }
    .bb-type-grid, .bb-voice-grid, .bb-dl-grid { grid-template-columns: 1fr; }
    .bb-principles { grid-template-columns: 1fr; }
    .bb-imagery-grid { grid-template-columns: 1fr 1fr; }
    .bb-spacing-demo { grid-template-columns: 1fr 1fr; }
    .bb-char-grid, .bb-values-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 500px) {
    .bb-approach-steps { grid-template-columns: 1fr; }
    .bb-mockup-grid    { grid-template-columns: 1fr; }
    .bb-imagery-grid   { grid-template-columns: 1fr; }
    .bb-spacing-demo   { grid-template-columns: 1fr 1fr; }
    .bb-char-grid, .bb-values-grid { grid-template-columns: 1fr; }
    .bb-logo-grid      { grid-template-columns: 1fr; }
    .bb-people-grid {
      grid-template-columns: 1fr;
      grid-template-rows: repeat(7, 220px);
    }
    .bb-people-cell--wide,
    .bb-people-cell--sq { grid-column: span 1; }
  }
  

/* ── Satır-içi stillerden taşındı ── */
#bbSidebar .bb-nav { padding-top: 1.6rem; }
.bb-type-card .bb-type-card__sample-pp--sf { font-family: var(--sf); font-size: .8rem; color: rgba(255,255,255,.3); }
.bb-type-card .bb-type-card__sample-pp--name { font-size: 1.6rem; font-weight: 600; color: var(--white); }
.bb-type-scale-row .bb-type-scale-sample--display,
.bb-type-scale-row .bb-type-scale-sample--h1,
.bb-type-scale-row .bb-type-scale-sample--h2 { font-family: var(--sf); font-weight: 700; text-transform: uppercase; letter-spacing: -.03em; color: var(--white); line-height: 1; }
.bb-type-scale-row .bb-type-scale-sample--display { font-size: 2.4rem; }
.bb-type-scale-row .bb-type-scale-sample--h1 { font-size: 2rem; }
.bb-type-scale-row .bb-type-scale-sample--h2 { font-size: 1.4rem; letter-spacing: -.02em; }
.bb-type-scale-row .bb-type-scale-sample--body { font-family: var(--pp); font-size: .8rem; color: rgba(255,255,255,.55); line-height: 1.8; }
.bb-type-scale-row .bb-type-scale-sample--label { font-family: var(--pp); font-size: .55rem; letter-spacing: .28em; text-transform: uppercase; color: rgba(255,255,255,.3); line-height: 1; }