/* =========================================================
   BDC THEME — MAIN STYLESHEET
   Tokens intentionally mirror the approved BDC mockups:
   cream background, near-black ink, mustard-gold accent,
   Archivo Black display type + Inter body type.
   ========================================================= */

:root{
  --bdc-accent: #c9a227;
  --bdc-accent-dark: #a9860f;
  --bdc-ink: #141414;
  --bdc-bg: #f5f4ef;
  --bdc-bg-alt: #ffffff;
  --bdc-ink-soft: #55534b;
  --bdc-border: #e3e0d6;
  --bdc-card-bg: #ffffff;

  --font-display: 'Archivo Black', 'Arial Black', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container: 1240px;
  --container-narrow: 1080px;
  --radius: 18px;
  --radius-sm: 10px;
  --header-h: 84px;
  --header-h-mobile: 68px;

  --ease: cubic-bezier(.22,.61,.36,1);

  /* Fixed type scale — desktop tier. H1 = 70px per spec, everything else
     scaled proportionally, then stepped down for tablet/mobile below. */
  --fs-h1: 70px;
  --fs-h2: 46px;
  --fs-h3: 28px;
  --fs-eyebrow: 15px;
}

/* Tablet tier */
@media (max-width: 1024px){
  :root{
    --fs-h1: 52px;
    --fs-h2: 36px;
    --fs-h3: 24px;
    --fs-eyebrow: 14px;
  }
}

/* Mobile tier */
@media (max-width: 640px){
  :root{
    --fs-h1: 38px;
    --fs-h2: 27px;
    --fs-h3: 21px;
    --fs-eyebrow: 13px;
  }
}

[data-theme="dark"]{
  --bdc-ink: #f2f1ea;
  --bdc-bg: #121210;
  --bdc-bg-alt: #1b1a17;
  --bdc-ink-soft: #b7b4a8;
  --bdc-border: #2e2c26;
  --bdc-card-bg: #1b1a17;
}

/* =========================== RESET =========================== */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bdc-bg);
  color: var(--bdc-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color .35s var(--ease), color .35s var(--ease);
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; cursor:pointer; }
input, textarea{ font-family: inherit; font-size: 1rem; }
h1,h2,h3,h4{ font-family: var(--font-display); text-transform: uppercase; line-height: 1.05; letter-spacing: -0.01em; margin: 0 0 .5em; }
h1{ font-size: var(--fs-h1); }
h2{ font-size: var(--fs-h2); }
h3{ font-size: var(--fs-h3); }
p{ margin: 0 0 1em; color: var(--bdc-ink-soft); }
.container{ max-width: var(--container); margin: 0 auto; padding: 0 28px; }
.container--narrow{ max-width: var(--container-narrow); }
.center{ text-align:center; }
.screen-reader-text{ position:absolute !important; clip:rect(1px,1px,1px,1px); width:1px;height:1px;overflow:hidden; }
.skip-link{ position:fixed; top:-100px; left:10px; background:var(--bdc-ink); color:var(--bdc-bg); padding:10px 16px; z-index:9999; border-radius:6px; }
.skip-link:focus{ top:10px; }
:focus-visible{ outline: 2px solid var(--bdc-accent); outline-offset: 3px; }

.eyebrow{
  font-size: var(--fs-eyebrow);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--bdc-ink-soft);
  font-weight: 700;
  margin: 0 0 .9em;
}
.section{ padding: 88px 0; }
.section-head{ display:flex; justify-content:space-between; align-items:flex-end; gap:32px; margin-bottom: 48px; flex-wrap: wrap; }
.section-head__desc{ max-width: 380px; margin:0; }
.section-head.center{ flex-direction:column; align-items:center; text-align:center; }
.section-cta{ text-align:center; margin-top: 44px; }

/* =========================== BUTTONS =========================== */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding: 15px 30px;
  font-weight: 700;
  font-size: .82rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 2px solid transparent;
  transition: transform .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
  white-space: nowrap;
}
.btn--dark{ background: var(--bdc-ink); color: var(--bdc-bg); }
.btn--dark:hover{ background: var(--bdc-accent); color: var(--bdc-ink); transform: translateY(-2px); }
.btn--accent{ background: var(--bdc-accent); color: var(--bdc-ink); }
.btn--accent:hover{ background: var(--bdc-ink); color: var(--bdc-bg); transform: translateY(-2px); }
.btn--outline{ border-color: var(--bdc-ink); color: var(--bdc-ink); background: transparent; }
.btn--outline:hover{ background: var(--bdc-ink); color: var(--bdc-bg); }

/* =========================== HEADER =========================== */
.site-header{
  position: sticky; top:0; z-index: 500;
  background: color-mix(in srgb, var(--bdc-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background-color .3s var(--ease);
}
.site-header.is-scrolled{ border-bottom-color: var(--bdc-border); }
.site-header__inner{
  max-width: var(--container);
  margin:0 auto;
  padding: 12px 28px;
  min-height: var(--header-h);
  display:flex; align-items:center; justify-content:space-between; gap: 24px;
}
.site-header__brand{ display:flex; align-items:center; gap:16px; min-width:0; }
.site-logo{ display:flex; align-items:center; gap:10px; min-width:0; }
.site-logo img{ max-height: 46px; width:auto; }
.site-logo__text{ display:flex; flex-direction:column; line-height:1.2; min-width:0; }
.site-logo__title{ font-family: var(--font-display); font-size: 1.05rem; text-transform:uppercase; letter-spacing: .01em; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width: 100%; }
.site-logo__tagline{ font-size: .62rem; letter-spacing:.12em; text-transform:uppercase; color: var(--bdc-ink-soft); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width: 100%; }

.site-header__nav{ display:flex; align-items:center; gap: 34px; }
.primary-menu{ display:flex; align-items:center; gap: 30px; }
.primary-menu a{
  font-size: .84rem; font-weight:700; letter-spacing:.05em; text-transform:uppercase;
  color: var(--bdc-ink-soft); position:relative; padding: 6px 0;
  transition: color .2s var(--ease);
}
.primary-menu a:hover, .primary-menu .current-menu-item > a{ color: var(--bdc-accent); }
.primary-menu .current-menu-item > a::after{
  content:''; position:absolute; left:0; right:0; bottom:-4px; height:2px; background: var(--bdc-accent);
}
.site-header__actions{ display:flex; align-items:center; gap:16px; }

/* Desktop already has a dedicated Contact button — no need to repeat it in the nav list */
@media (min-width: 1025px){
  .primary-menu .menu-item-bdc-contact{ display:none; }
}

.dark-toggle{
  width: 38px; height:38px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background: var(--bdc-bg-alt); border:1px solid var(--bdc-border);
  color: var(--bdc-ink); transition: background-color .2s;
}
.dark-toggle:hover{ background: var(--bdc-border); }
.icon-sun{ display:none; }
[data-theme="dark"] .icon-sun{ display:block; }
[data-theme="dark"] .icon-moon{ display:none; }

/* Hamburger + "Menu" label — always sits directly beside the logo */
.menu-toggle{
  display:none;
  align-items:center; gap: 10px;
  background:none; border:none; padding: 4px 2px; flex-shrink:0;
}
.menu-toggle__box{ width:20px; height:14px; position:relative; display:block; flex-shrink:0; }
.menu-toggle__line{
  position:absolute; left:0; width:100%; height:2px; background: var(--bdc-ink);
  border-radius:2px; transition: background-color .25s var(--ease);
}
.menu-toggle__line:nth-child(1){ top:0; }
.menu-toggle__line:nth-child(2){ top:6px; }
.menu-toggle__line:nth-child(3){ top:12px; }
.menu-toggle__label{ font-size:.78rem; font-weight:800; letter-spacing:.09em; text-transform:uppercase; color: var(--bdc-ink); transition: color .25s var(--ease); }
.menu-toggle[aria-expanded="true"] .menu-toggle__line{ background: var(--bdc-accent); }
.menu-toggle[aria-expanded="true"] .menu-toggle__label{ color: var(--bdc-accent); }

/* =========================== HERO =========================== */
.hero{ padding: 96px 0 72px; text-align:center; }
.hero__title{ font-size: clamp(3rem, 9vw, 6.2rem); margin: 0 0 .3em; }
.hero__line{ display:block; }
.hero__line--accent{ color: var(--bdc-accent); }
.hero__intro{ max-width: 620px; margin: 0 auto; font-size: 1.05rem; }
.reveal{ animation: bdcFadeUp .7s var(--ease) both; }
.hero__title.reveal{ animation-delay:.08s; }
.hero__intro.reveal{ animation-delay:.18s; }
@keyframes bdcFadeUp{ from{ opacity:0; transform: translateY(18px);} to{ opacity:1; transform:none; } }
@media (prefers-reduced-motion: reduce){ .reveal{ animation:none; } html{ scroll-behavior:auto; } }

/* =========================== PROJECT GRID / CARDS =========================== */
.project-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.project-card{
  background: var(--bdc-card-bg); border:1px solid var(--bdc-border); border-radius: var(--radius);
  overflow:hidden; display:flex; flex-direction:column; transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.project-card:hover{ transform: translateY(-6px); box-shadow: 0 24px 48px -24px rgba(20,20,20,.28); }
.project-card__media{ position:relative; display:block; aspect-ratio: 4/3.6; overflow:hidden; background: var(--bdc-ink); }
.project-card__media img{ width:100%; height:100%; object-fit:cover; transition: transform .5s var(--ease); }
.project-card:hover .project-card__media img{ transform: scale(1.06); }
.project-card__media-placeholder{ display:block; width:100%; height:100%; background: linear-gradient(135deg, #23231f, #050505); }
.project-card__number{ position:absolute; top:14px; left:14px; background: var(--bdc-bg-alt); color:var(--bdc-ink); font-size:.68rem; font-weight:700; letter-spacing:.08em; padding:6px 12px; border-radius:999px; text-transform:uppercase; }
.project-card__badge{ position:absolute; left:14px; bottom:14px; background: var(--bdc-bg-alt); color:var(--bdc-ink); font-size:.66rem; font-weight:700; letter-spacing:.06em; padding:6px 12px; border-radius:999px; text-transform:uppercase; }
.project-card__body{ padding: 22px 24px 26px; display:flex; flex-direction:column; gap:8px; }
.project-card__meta{ font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; color: var(--bdc-accent-dark); margin:0; font-weight:700; }
.project-card__title{ font-size:1.25rem; margin:0; }
.project-card__title a:hover{ color: var(--bdc-accent); }
.project-card__excerpt{ color: var(--bdc-ink-soft); font-size:.92rem; }
.project-card__excerpt p{ margin:0; }
.project-card__link{ font-size:.76rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color: var(--bdc-ink); border-bottom:1px solid var(--bdc-ink); align-self:flex-start; padding-bottom:2px; margin-top:6px; }
.project-card__link:hover{ color: var(--bdc-accent); border-color: var(--bdc-accent); }

/* =========================== WHY US / CONSULTATION =========================== */
.why-us{ background: var(--bdc-bg-alt); border-radius: 32px; margin: 0 24px; }
.why-us__grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items:center; }
.stat-row{ display:flex; gap: 36px; margin-top: 32px; padding-top: 28px; border-top:1px solid var(--bdc-border); }
.stat__number{ display:block; font-family: var(--font-display); font-size:2rem; color: var(--bdc-ink); }
.stat__label{ font-size:.72rem; letter-spacing:.05em; text-transform:uppercase; color: var(--bdc-ink-soft); }

.consult-card{ background: var(--bdc-bg); border:1px solid var(--bdc-border); border-radius: var(--radius); padding: 40px; }
.consult-card h3{ font-size:1.5rem; }
.consult-form__row{ display:grid; grid-template-columns:1fr 1fr; gap: 16px; margin-bottom:16px; }
.consult-form__field{ display:flex; flex-direction:column; gap:6px; }
.consult-form__field label{ font-size:.68rem; letter-spacing:.08em; text-transform:uppercase; font-weight:700; color: var(--bdc-ink-soft); }
.consult-form__field input{
  padding: 13px 14px; border-radius: 10px; border:1px solid var(--bdc-border);
  background: var(--bdc-bg-alt); color: var(--bdc-ink);
}
.consult-form__field input:focus{ border-color: var(--bdc-accent); }
.consult-form__submit{ width:100%; justify-content:center; margin-top: 8px; border:none; }
.consult-form__submit[disabled]{ opacity:.6; cursor:progress; }
.consult-form__response{ margin: 14px 0 0; font-size:.85rem; min-height: 1.2em; }
.consult-form__response.is-success{ color: #3f7a3f; }
.consult-form__response.is-error{ color: #b3413a; }

/* =========================== ABOUT PAGE =========================== */
.about-intro{ padding-top: 60px; }
.about-intro__content{ margin-top: 24px; }
.accordion{ display:flex; flex-direction:column; gap: 16px; margin: 20px 0 0; }
.accordion__item{
  background: var(--bdc-bg-alt); border:1px solid var(--bdc-border); border-radius: var(--radius-sm);
  overflow:hidden; box-shadow: 0 18px 44px -26px rgba(20,20,20,.35);
  transition: box-shadow .25s var(--ease);
}
[data-theme="dark"] .accordion__item{ box-shadow: 0 18px 44px -26px rgba(0,0,0,.6); }
.accordion__item.is-open{ box-shadow: 0 22px 54px -22px rgba(20,20,20,.4); }
[data-theme="dark"] .accordion__item.is-open{ box-shadow: 0 22px 54px -22px rgba(0,0,0,.7); }
.accordion__trigger{
  width:100%; display:flex; justify-content:space-between; align-items:center;
  background:none; border:none; padding: 22px 26px; text-align:left;
  font-family: var(--font-display); font-size:1.15rem; text-transform:uppercase; color: var(--bdc-ink);
}
.accordion__icon{ width:30px; height:30px; border-radius:50%; background: var(--bdc-bg); flex-shrink:0; position:relative; }
.accordion__icon::before, .accordion__icon::after{ content:''; position:absolute; background: var(--bdc-ink); top:50%; left:50%; transform: translate(-50%,-50%); }
.accordion__icon::before{ width:12px; height:2px; }
.accordion__icon::after{ width:2px; height:12px; transition: transform .25s var(--ease); }
.accordion__item.is-open .accordion__icon::after{ transform: translate(-50%,-50%) rotate(90deg) scaleX(0); }
.accordion__panel{ max-height:0; overflow:hidden; transition: max-height .35s var(--ease); }
.accordion__panel-inner{ padding: 0 26px 24px; }
.accordion__panel-inner p:last-child{ margin-bottom:0; }

.leaders{ padding-top:40px; }
.leaders-grid{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.leader-card{
  background: var(--bdc-bg-alt); border:1px solid var(--bdc-border); border-radius: var(--radius); overflow:hidden;
  display:grid; grid-template-columns: 200px 1fr;
  box-shadow: 0 18px 44px -26px rgba(20,20,20,.35);
  transition: box-shadow .25s var(--ease), transform .25s var(--ease);
}
.leader-card:hover{ box-shadow: 0 22px 54px -22px rgba(20,20,20,.4); transform: translateY(-4px); }
[data-theme="dark"] .leader-card{ box-shadow: 0 18px 44px -26px rgba(0,0,0,.6); }
[data-theme="dark"] .leader-card:hover{ box-shadow: 0 22px 54px -22px rgba(0,0,0,.7); }
.leader-card__photo{ background: var(--bdc-ink); min-height: 100%; }
.leader-card__photo img{ width:100%; height:100%; object-fit:cover; filter: grayscale(1); }
.leader-card__placeholder{ display:block; width:100%; height:100%; min-height:260px; background: linear-gradient(160deg,#2a2a26,#0a0a08); }
.leader-card__body{ padding: 26px 24px; }
.leader-card__body h3{ font-size:1.3rem; margin-bottom:.2em; }
.leader-card__title{ color: var(--bdc-accent-dark); font-size:.72rem; letter-spacing:.06em; text-transform:uppercase; font-weight:700; margin-bottom:1em; }
.leader-card__bio{ font-size:.88rem; margin:0; }

/* =========================== PROCESS PAGE =========================== */
.process-intro{ padding-bottom: 40px; }
.process-intro__content{ margin-top:18px; }
.process-phases .phase-card{
  display:grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items:center;
  background: var(--bdc-bg-alt); border:1px solid var(--bdc-border); border-radius: 28px;
  padding: 46px; margin-bottom: 30px;
}
.phase-card--reverse{ grid-template-columns: 1fr 1fr; }
.phase-card--reverse .phase-card__copy{ order:2; }
.phase-card--reverse .phase-card__media{ order:1; }
.phase-card__number{
  display:inline-flex; align-items:center; justify-content:center;
  width: 46px; height:46px; border-radius:50%; background: var(--bdc-accent); color: var(--bdc-ink);
  font-family: var(--font-display); font-size:.95rem; margin-bottom: 18px;
}
.phase-card__copy h2{ font-size:1.9rem; margin-bottom:.4em; }
.phase-card__media{ border-radius: var(--radius); overflow:hidden; aspect-ratio: 4/3; }
.phase-card__media img{ width:100%; height:100%; object-fit:cover; }
.phase-card__placeholder{ display:block; width:100%; height:100%; background: linear-gradient(160deg,#2a2a26,#0a0a08); }
.bdc-bullets{ margin-top: 18px; display:flex; flex-direction:column; gap: 14px; }
.bdc-bullets li{ display:flex; gap:12px; align-items:flex-start; }
.bdc-bullets li span:last-child{ color: var(--bdc-ink-soft); font-size:.94rem; }
.bdc-bullets li strong{ color: var(--bdc-ink); }
.bdc-bullet-icon{ width:8px; height:8px; border-radius:2px; background: var(--bdc-accent); margin-top:7px; flex-shrink:0; transform: rotate(45deg); }

/* =========================== PROJECTS LIST PAGE =========================== */
.projects-intro{ padding-bottom: 30px; }
.project-row{
  display:grid; grid-template-columns: 1fr 1.1fr; gap: 50px; align-items:center;
  background: var(--bdc-bg-alt); border:1px solid var(--bdc-border); border-radius: 28px;
  padding: 40px; margin-bottom: 30px;
}
.project-row__eyebrow{ font-size:.7rem; letter-spacing:.1em; text-transform:uppercase; color: var(--bdc-ink-soft); margin-bottom:.6em; }
.project-row__title{ font-size: 2rem; margin-bottom: .5em; }
.project-row__title a:hover{ color: var(--bdc-accent); }
.project-row__facts{ display:flex; gap: 30px; margin-bottom: 18px; flex-wrap:wrap; }
.project-row__label{ display:block; font-size:.66rem; letter-spacing:.08em; text-transform:uppercase; color: var(--bdc-ink-soft); margin-bottom:.3em; }
.project-row__value{ font-weight:700; font-size:.92rem; }
.project-row__excerpt{ color: var(--bdc-ink-soft); margin-bottom: 18px; }
.project-row__excerpt p{ margin:0; }
.project-row__link{ font-size:.76rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase; border-bottom:1px solid var(--bdc-ink); padding-bottom:2px; }
.project-row__link:hover{ color: var(--bdc-accent); border-color: var(--bdc-accent); }
.project-row__media{ position:relative; display:block; border-radius: var(--radius); overflow:hidden; aspect-ratio: 4/3; background: var(--bdc-ink); }
.project-row__media img{ width:100%; height:100%; object-fit:cover; transition: transform .5s var(--ease); }
.project-row:hover .project-row__media img{ transform: scale(1.05); }
.project-row__placeholder{ display:block; width:100%; height:100%; background: linear-gradient(160deg,#2a2a26,#0a0a08); }
.project-row__badge{ position:absolute; left:16px; bottom:16px; background: var(--bdc-bg-alt); color:var(--bdc-ink); font-size:.68rem; font-weight:700; letter-spacing:.06em; padding:7px 14px; border-radius:999px; text-transform:uppercase; }
.projects-empty{ text-align:center; padding: 60px 0; color: var(--bdc-ink-soft); }
.pagination{ display:flex; justify-content:center; gap:8px; margin-top: 20px; }
.pagination .page-numbers{ width:38px; height:38px; display:flex; align-items:center; justify-content:center; border-radius:50%; border:1px solid var(--bdc-border); font-weight:700; font-size:.85rem; }
.pagination .page-numbers.current{ background: var(--bdc-ink); color: var(--bdc-bg); border-color: var(--bdc-ink); }

/* =========================== SINGLE PROJECT =========================== */
.project-single__header{ padding: 60px 0 36px; }
.project-single__back{ display:inline-block; margin-bottom: 20px; font-size:.8rem; font-weight:700; letter-spacing:.05em; text-transform:uppercase; color: var(--bdc-ink-soft); }
.project-single__back:hover{ color: var(--bdc-accent); }
.project-single__facts{ display:flex; gap:22px; justify-content:center; flex-wrap:wrap; font-size:.85rem; font-weight:600; color: var(--bdc-ink-soft); margin-top: 10px; }
.project-single__badge{ background: var(--bdc-ink); color: var(--bdc-bg); padding: 4px 12px; border-radius: 999px; font-size:.7rem; letter-spacing:.06em; text-transform:uppercase; }
.project-single__hero{ border-radius: 28px; overflow:hidden; margin: 0 24px 10px; max-width: 1400px; margin-left:auto; margin-right:auto; }
.project-single__hero img{ width:100%; max-height: 640px; object-fit:cover; }
.project-single__body{ padding: 50px 0 90px; font-size: 1.05rem; }
.project-single__body p{ color: var(--bdc-ink); }

/* =========================== CONTACT PAGE =========================== */
.contact-section{ padding-top: 60px; }
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items:flex-start; }
.contact-grid__copy h1{ font-size: clamp(2.4rem, 5vw, 3.4rem); }
.contact-facts{ margin: 30px 0; display:flex; flex-direction:column; gap:16px; }
.contact-facts li{ display:flex; gap:12px; align-items:baseline; }
.contact-facts__label{ font-size:.68rem; letter-spacing:.08em; text-transform:uppercase; color: var(--bdc-ink-soft); width: 70px; flex-shrink:0; }
.contact-facts a:hover{ color: var(--bdc-accent); }
.bdc-social-icons{ display:flex; gap: 12px; margin-top: 20px; }
.bdc-social-icon{ width:38px; height:38px; border-radius:50%; border:1px solid var(--bdc-border); display:flex; align-items:center; justify-content:center; }
.bdc-social-icon:hover{ background: var(--bdc-ink); color: var(--bdc-bg); border-color: var(--bdc-ink); }

/* =========================== FOOTER =========================== */
.site-footer{ background: var(--bdc-ink); color: var(--bdc-bg); margin-top: 60px; border-radius: 32px 32px 0 0; }
.site-footer a{ color: var(--bdc-bg); }
.site-footer p{ color: #b9b6ab; }
.site-footer__top{ max-width: var(--container); margin:0 auto; padding: 72px 28px 40px; display:grid; grid-template-columns: 1.6fr 1fr 1.2fr 1fr; gap: 40px; }
.footer-logo{ margin-bottom: 16px; }
.footer-logo img{ max-height:40px; filter: brightness(0) invert(1); }
.footer-tagline{ max-width: 280px; margin-bottom: 24px; }
.footer-col__title{ font-family: var(--font-body); font-weight:800; text-transform:uppercase; font-size:.78rem; letter-spacing:.08em; margin-bottom: 20px; }
.footer-menu, .footer-contact{ display:flex; flex-direction:column; gap: 12px; }
.footer-menu a, .footer-contact a{ font-size:.9rem; color:#d9d6cb; }
.footer-menu a:hover, .footer-contact a:hover{ color: var(--bdc-accent); }
.footer-contact li{ display:flex; gap:6px; flex-wrap:wrap; font-size:.9rem; color:#d9d6cb; }
.footer-contact span{ color:#8f8c81; }
.site-footer .bdc-social-icon{ border-color:#3a3934; color:#d9d6cb; }
.site-footer .bdc-social-icon:hover{ background: var(--bdc-accent); border-color: var(--bdc-accent); color: var(--bdc-ink); }
.site-footer__bottom{ border-top:1px solid #2c2b26; padding: 22px 28px; text-align:center; }
.site-footer__bottom p{ margin:0; font-size:.8rem; color:#8f8c81; }

/* =========================== GENERIC PAGE / 404 =========================== */
.generic-content{ padding: 70px 0; }
.generic-page__header{ margin-bottom: 28px; }
.generic-list{ display:flex; flex-direction:column; gap: 30px; }
.error-404{ text-align:center; padding: 120px 0; }
.error-404 h1{ font-size: 6rem; color: var(--bdc-accent); }

/* =========================== MOBILE MENU OVERLAY =========================== */
@media (max-width: 1024px){
  :root{ --header-h: var(--header-h-mobile); }
  .section{ padding: 64px 0; }
  .menu-toggle{ display:flex; }

  .site-header__nav{
    position: fixed;
    top: var(--header-h-live, var(--header-h-mobile));
    left:0; right:0; z-index: 480;
    max-height: calc(100vh - var(--header-h-live, var(--header-h-mobile)) - 12px);
    overflow-y: auto;
    background: color-mix(in srgb, var(--bdc-bg) 90%, transparent);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-top: 1px solid var(--bdc-border);
    border-bottom: 1px solid var(--bdc-border);
    box-shadow: 0 40px 70px -35px rgba(20,20,20,.35);
    display:block;
    padding: 10px 28px 30px;
    transform: translateY(-10px);
    opacity:0; visibility:hidden; pointer-events:none;
    transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
  }
  .site-header__nav.is-open{ opacity:1; visibility:visible; pointer-events:auto; transform:none; }
  .primary-nav{ display:block; width:100%; }
  .primary-menu{ flex-direction:column; align-items:flex-start; gap: 2px; width:100%; }
  .primary-menu a{ display:block; font-size: 1.7rem; font-family: var(--font-display); text-transform:uppercase; color: var(--bdc-ink); padding: 14px 0; border-bottom: 1px solid var(--bdc-border); }
  .primary-menu li:last-child a{ border-bottom:none; }
  .primary-menu .current-menu-item > a::after{ display:none; }
  /* Mobile keeps the Contact link in the menu list instead of a separate button */
  .primary-menu .menu-item-bdc-contact{ display:list-item; }
  .site-header__actions{ width:100%; justify-content:flex-start; gap:16px; margin-top: 18px; padding-top: 18px; }
  .site-header__cta{ display:none; }

  .why-us__grid{ grid-template-columns:1fr; }
  .leaders-grid{ grid-template-columns:1fr; }
  .phase-card, .phase-card--reverse{ grid-template-columns:1fr; padding: 30px; }
  .phase-card__copy, .phase-card--reverse .phase-card__copy{ order:1; }
  .phase-card__media, .phase-card--reverse .phase-card__media{ order:2; }
  .project-row{ grid-template-columns:1fr; padding: 26px; }
  .contact-grid{ grid-template-columns:1fr; }
  .site-footer__top{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px){
  .project-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px){
  .container{ padding: 0 20px; }
  .project-grid{ grid-template-columns: 1fr; }
  .consult-form__row{ grid-template-columns: 1fr; }
  .why-us{ margin: 0 12px; border-radius: 24px; }
  .site-footer{ border-radius: 24px 24px 0 0; }
  .site-footer__top{ grid-template-columns: 1fr; padding: 56px 24px 30px; }
  .stat-row{ gap: 24px; }
  .leader-card{ grid-template-columns: 1fr; }
  .leader-card__photo{ min-height: 240px; }
  .hero{ padding: 64px 0 48px; }
}