/* =============================================================
   EXCEN — home.css
   Hero + homepage sections
   ============================================================= */

/* ---------- HERO ---------- */
.ex-hero {
  position: relative;
  overflow: hidden;
  background: var(--ex-charcoal);
  color: #fff;
  padding-block: var(--ex-space-8) var(--ex-space-9);
}
.ex-hero__bg { position: absolute; inset: 0; z-index: 0; }
/* Hero photo: drops in `assets/img/hero.webp` when present; the warm
   gradient below is the fallback, so the hero never breaks if the
   image is missing. The scrim (.ex-hero__scrim) keeps text legible. */
.ex-hero__photo {
  position: absolute; inset: 0;
  background-image:
    url('../img/hero.webp'),
    linear-gradient(160deg, #2b1d16 0%, #3a221a 45%, #1c1411 100%);
  background-size: cover, cover;
  background-position: center right, center;
  background-repeat: no-repeat, no-repeat;
}
.ex-hero__photo::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(120% 90% at 85% 15%, rgba(254,126,33,0.40), transparent 55%),
    radial-gradient(90% 80% at 70% 90%, rgba(226,10,18,0.34), transparent 60%);
}
/* faint power-line / grid texture */
.ex-hero__photo::after {
  content: ""; position: absolute; inset: 0; opacity: 0.5;
  background-image:
    repeating-linear-gradient(115deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 64px);
}
.ex-hero__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(95deg, rgba(12,8,5,0.92) 0%, rgba(12,8,5,0.72) 38%, rgba(12,8,5,0.35) 68%, rgba(12,8,5,0.15) 100%);
}
/* big motion streaks bleeding off the right edge */
.ex-hero__streaks { position: absolute; top: 0; right: -4%; bottom: 0; width: 70%; z-index: 1; pointer-events: none; opacity: 0.9; }
.ex-hero__streaks span {
  position: absolute; right: 0; height: clamp(10px, 2.4vw, 26px); border-radius: var(--ex-radius-pill);
  background: var(--ex-gradient); filter: drop-shadow(0 0 30px rgba(254,126,33,0.4));
}
.ex-hero__streaks span:nth-child(1) { top: 24%; width: 70%; opacity: 0.95; }
.ex-hero__streaks span:nth-child(2) { top: 44%; width: 84%; opacity: 0.8; }
.ex-hero__streaks span:nth-child(3) { top: 64%; width: 60%; opacity: 0.7; }
@media (max-width: 720px) { .ex-hero__streaks { opacity: 0.4; width: 110%; } }
.ex-hero__streaks--faint { opacity: 0.18; }

.ex-hero__inner { position: relative; z-index: 2; }
.ex-hero__copy { max-width: 640px; }
.ex-hero__title {
  font-size: var(--ex-text-4xl);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: var(--ex-tracking-tight);
  color: #fff;
  margin: var(--ex-space-5) 0 0;
}
.ex-hero__title .hl { color: var(--ex-orange-light); }
.ex-hero__sub {
  font-size: var(--ex-text-md);
  line-height: var(--ex-lh-relaxed);
  color: rgba(255,255,255,0.82);
  margin: var(--ex-space-5) 0 var(--ex-space-6);
  max-width: 520px;
}
.ex-hero__cta { display: flex; flex-direction: column; gap: var(--ex-space-3); }
@media (min-width: 480px) { .ex-hero__cta { flex-direction: row; flex-wrap: wrap; } }

/* hero stat band */
.ex-hero__stats {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--ex-space-5);
  margin-top: var(--ex-space-8);
  padding-top: var(--ex-space-6);
  border-top: 1px solid rgba(255,255,255,0.14);
  max-width: 640px;
}
@media (min-width: 720px) { .ex-hero__stats { grid-template-columns: repeat(4, 1fr); max-width: none; } }
.ex-stat__num { font-family: var(--ex-font-display); font-weight: 700; font-size: clamp(1.9rem, 1.2rem + 2vw, 2.6rem); line-height: 1; color: #fff; letter-spacing: -0.02em; }
.ex-stat__num .unit { color: var(--ex-orange-light); }
.ex-stat__label { font-size: var(--ex-text-sm); color: rgba(255,255,255,0.66); margin-top: 8px; line-height: 1.35; }

/* ---------- ABOUT ---------- */
.ex-about__grid { display: grid; grid-template-columns: 1fr; gap: var(--ex-space-7); align-items: center; }
@media (min-width: 900px) { .ex-about__grid { grid-template-columns: 1.05fr 0.95fr; gap: var(--ex-space-8); } }
.ex-about__body p { font-size: var(--ex-text-md); color: var(--ex-text); }
.ex-about__signature { display: flex; align-items: center; gap: var(--ex-space-4); margin-top: var(--ex-space-6); padding-top: var(--ex-space-5); border-top: 1px solid var(--ex-border); }
.ex-about__affil { font-size: var(--ex-text-sm); color: var(--ex-text-muted); }
.ex-about__media { position: relative; }
.ex-figure {
  position: relative; border-radius: var(--ex-radius-xl); overflow: hidden;
  aspect-ratio: 4/3; box-shadow: var(--ex-shadow-card);
  background: linear-gradient(150deg, #3a221a, #1c1411);
}
.ex-figure__ph {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  color: rgba(255,255,255,0.55); font-size: var(--ex-text-sm); text-align: center; padding: var(--ex-space-5);
}
.ex-figure__ph svg { width: 38px; height: 38px; opacity: 0.7; }
.ex-figure--energy::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(110% 90% at 80% 20%, rgba(254,126,33,0.35), transparent 55%), radial-gradient(90% 80% at 20% 90%, rgba(226,10,18,0.3), transparent 60%);
}
.ex-about__badge {
  position: absolute; left: -10px; bottom: -16px;
  background: var(--ex-white); border-radius: var(--ex-radius-lg); box-shadow: var(--ex-shadow-card);
  padding: var(--ex-space-4) var(--ex-space-5); display: flex; align-items: center; gap: var(--ex-space-3);
  border: 1px solid var(--ex-border);
}
.ex-about__badge .big { font-family: var(--ex-font-display); font-weight: 700; font-size: 2rem; color: var(--ex-red); line-height: 1; }
.ex-about__badge .lbl { font-size: var(--ex-text-xs); color: var(--ex-text); line-height: 1.3; max-width: 110px; }

/* ---------- AREAS (what we do) ---------- */
.ex-grid { display: grid; gap: var(--ex-space-5); grid-template-columns: 1fr; }
@media (min-width: 560px) { .ex-grid--2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 880px) { .ex-grid--3 { grid-template-columns: repeat(3, 1fr); } .ex-grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .ex-grid--4 { grid-template-columns: repeat(4, 1fr); } }

.ex-area {
  background: var(--ex-white); border: 1px solid var(--ex-border); border-radius: var(--ex-radius-lg);
  padding: var(--ex-space-6); transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
  position: relative; overflow: hidden;
}
.ex-area:hover { transform: translateY(-5px); box-shadow: var(--ex-shadow-card-hover); border-color: transparent; }
.ex-area__icon {
  width: 54px; height: 54px; border-radius: var(--ex-radius); display: inline-flex; align-items: center; justify-content: center;
  background: var(--ex-red-tint); color: var(--ex-red); margin-bottom: var(--ex-space-4);
}
.ex-area:nth-child(even) .ex-area__icon { background: var(--ex-orange-tint); color: var(--ex-orange-dark); }
.ex-area__icon svg { width: 26px; height: 26px; }
.ex-area h3 { margin-bottom: var(--ex-space-3); }
.ex-area p { font-size: var(--ex-text-sm); margin-bottom: 0; }
.ex-area__num { position: absolute; top: var(--ex-space-4); right: var(--ex-space-5); font-family: var(--ex-font-display); font-weight: 700; font-size: 1.1rem; color: var(--ex-border); }

/* ---------- PRODUCTION / PROJECTS ---------- */
.ex-proj {
  display: flex; gap: var(--ex-space-4); padding: var(--ex-space-5);
  background: var(--ex-white); border: 1px solid var(--ex-border); border-radius: var(--ex-radius-lg);
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.ex-proj:hover { transform: translateY(-3px); box-shadow: var(--ex-shadow-card); }
.ex-proj__icon { flex-shrink: 0; width: 46px; height: 46px; border-radius: var(--ex-radius); background: var(--ex-gradient); color: #fff; display: inline-flex; align-items: center; justify-content: center; }
.ex-proj__icon svg { width: 24px; height: 24px; }
.ex-proj h4 { margin-bottom: 6px; color: var(--ex-ink); }
.ex-proj p { font-size: var(--ex-text-sm); margin: 0; color: var(--ex-text); }
.ex-proj__tag { font-size: var(--ex-text-xs); font-weight: 700; letter-spacing: 0.04em; color: var(--ex-red); text-transform: uppercase; display: block; margin-bottom: 4px; }
.ex-proj--soft { background: var(--ex-mist); border-color: transparent; align-items: center; }

/* ---------- LABS (dark) ---------- */
.ex-lab { display: grid; grid-template-columns: 1fr; gap: var(--ex-space-5); }
@media (min-width: 820px) { .ex-lab { grid-template-columns: repeat(2, 1fr); } }
.ex-lab__card {
  background: var(--ex-charcoal-2); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--ex-radius-xl);
  overflow: hidden; transition: transform 220ms ease, border-color 220ms ease;
}
.ex-lab__card:hover { transform: translateY(-5px); border-color: rgba(254,126,33,0.4); }
.ex-lab__thumb { aspect-ratio: 16/9; position: relative; display: flex; align-items: flex-end; padding: var(--ex-space-4); }
.ex-lab__thumb--feature { border-radius: var(--ex-radius-xl); aspect-ratio: 4/3; }
.ex-lab__thumb--1 { background: linear-gradient(140deg, #2c1c14, #4a2a1c 70%, #2c1c14); }
.ex-lab__thumb--2 { background: linear-gradient(140deg, #1c2226, #20303a 70%, #161d22); }
.ex-lab__thumb::after { content: ""; position: absolute; inset: 0; background: radial-gradient(80% 120% at 90% 10%, rgba(254,126,33,0.3), transparent 60%); }
.ex-lab__thumb .ex-chip { position: relative; z-index: 1; }
.ex-lab__body { padding: var(--ex-space-6); }
.ex-lab__body h3 { color: #fff; margin-bottom: var(--ex-space-3); }
.ex-lab__body p { font-size: var(--ex-text-sm); margin-bottom: 0; }

/* ---------- PROFESSORS ---------- */
.ex-prof {
  background: var(--ex-white); border: 1px solid var(--ex-border); border-radius: var(--ex-radius-lg);
  padding: var(--ex-space-5); text-align: center; transition: transform 220ms ease, box-shadow 220ms ease;
}
.ex-prof:hover { transform: translateY(-4px); box-shadow: var(--ex-shadow-card-hover); }
.ex-prof__avatar {
  width: 84px; height: 84px; border-radius: 50%; margin: 0 auto var(--ex-space-4);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
  font-family: var(--ex-font-display); font-weight: 700; font-size: 1.5rem; color: #fff;
  background: var(--ex-gradient); letter-spacing: 0.02em;
}
.ex-prof h4 { color: var(--ex-ink); margin-bottom: 4px; }
.ex-prof__role { font-size: var(--ex-text-sm); color: var(--ex-red); font-weight: 600; margin-bottom: var(--ex-space-3); }
.ex-prof__email { font-size: var(--ex-text-xs); color: var(--ex-text-muted); word-break: break-word; }

/* ---------- PARTNERS ---------- */
.ex-partners__row { display: flex; flex-wrap: wrap; gap: var(--ex-space-4); justify-content: center; align-items: center; }
.ex-partner-logo {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 130px; height: 72px; padding: 0 var(--ex-space-5);
  background: var(--ex-white); border: 1px solid var(--ex-border); border-radius: var(--ex-radius);
  font-family: var(--ex-font-display); font-weight: 700; font-size: 1.05rem; color: var(--ex-ink);
  letter-spacing: 0.02em; transition: border-color 160ms, box-shadow 160ms, transform 160ms;
}
.ex-partner-logo:hover { border-color: var(--ex-red); transform: translateY(-3px); box-shadow: var(--ex-shadow-card); }
.ex-partner-logo span { font-size: var(--ex-text-xs); font-weight: 500; color: var(--ex-text-muted); margin-left: 6px; }
.ex-partner-logo img { max-height: 42px; max-width: 130px; width: auto; object-fit: contain; display: block; }
.ex-partners__note { text-align: center; max-width: 620px; margin: var(--ex-space-6) auto 0; }
.ex-partners__note p { font-size: var(--ex-text-sm); margin: 0; }

/* academic network chips */
.ex-netchips { display: flex; flex-wrap: wrap; gap: var(--ex-space-3); justify-content: center; margin-top: var(--ex-space-5); }
.ex-netchip { display: inline-flex; align-items: center; gap: 7px; padding: 9px 16px; border-radius: var(--ex-radius-pill); background: var(--ex-sand); font-size: var(--ex-text-sm); font-weight: 500; color: var(--ex-ink); }
.ex-netchip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ex-red); }

/* ---------- NEWSLETTER ---------- */
.ex-newsletter__card {
  background: var(--ex-charcoal); color: #fff; border-radius: var(--ex-radius-xl);
  padding: var(--ex-space-7) var(--ex-space-5); text-align: center; position: relative; overflow: hidden;
}
@media (min-width: 768px) { .ex-newsletter__card { padding: var(--ex-space-8); } }
.ex-newsletter__card::before { content: ""; position: absolute; top: -60px; right: -40px; width: 240px; height: 240px; background: radial-gradient(circle, rgba(254,126,33,0.35), transparent 70%); }
.ex-newsletter__card::after { content: ""; position: absolute; bottom: -70px; left: -50px; width: 240px; height: 240px; background: radial-gradient(circle, rgba(226,10,18,0.3), transparent 70%); }
.ex-newsletter__inner { position: relative; z-index: 1; max-width: 540px; margin: 0 auto; }
.ex-newsletter__card .ex-eyebrow { color: var(--ex-orange-light); }
.ex-newsletter__card h2 { color: #fff; margin-bottom: var(--ex-space-3); }
.ex-newsletter__card p { color: rgba(255,255,255,0.74); margin-bottom: var(--ex-space-6); }
.ex-newsletter__form { display: flex; flex-direction: column; gap: var(--ex-space-3); }
@media (min-width: 520px) { .ex-newsletter__form { flex-direction: row; } .ex-newsletter__form .ex-input { flex: 1; } }
.ex-newsletter__msg { margin-top: var(--ex-space-4); font-size: var(--ex-text-sm); color: var(--ex-orange-light); min-height: 1.2em; font-weight: 500; }

/* ---------- CONTACT CTA ---------- */
.ex-contact__grid { display: grid; grid-template-columns: 1fr; gap: var(--ex-space-7); }
@media (min-width: 900px) { .ex-contact__grid { grid-template-columns: 1fr 1fr; gap: var(--ex-space-8); } }
.ex-contact__info { display: flex; flex-direction: column; gap: var(--ex-space-5); }
.ex-contact__item { display: flex; gap: var(--ex-space-4); align-items: flex-start; }
.ex-contact__item-icon { flex-shrink: 0; width: 48px; height: 48px; border-radius: var(--ex-radius); background: var(--ex-red-tint); color: var(--ex-red); display: inline-flex; align-items: center; justify-content: center; }
.ex-contact__item-icon svg { width: 22px; height: 22px; }
.ex-contact__item h4 { color: var(--ex-ink); margin-bottom: 4px; }
.ex-contact__item p { font-size: var(--ex-text-sm); margin: 0; }
.ex-form { display: flex; flex-direction: column; gap: var(--ex-space-4); background: var(--ex-white); border: 1px solid var(--ex-border); border-radius: var(--ex-radius-xl); padding: var(--ex-space-6); box-shadow: var(--ex-shadow-card); }
.ex-form__msg { font-size: var(--ex-text-sm); font-weight: 600; color: var(--ex-red); min-height: 1.2em; }
.ex-form__title { font-size: var(--ex-text-xl); }
.ex-form__hint { font-size: var(--ex-text-sm); color: var(--ex-text-muted); margin: 8px 0 0; }
.ex-form__hint .req { color: var(--ex-red); }
.ex-map { aspect-ratio: 16/10; border-radius: var(--ex-radius-xl); overflow: hidden; border: 1px solid var(--ex-border); }
.ex-map iframe { width: 100%; height: 100%; border: 0; display: block; }