/*
CSIR Bharat — reusable UI components: buttons, sliders, cards, forms,
tabs, and small utility widgets shared across pages.
*/

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 30px;border-radius:2px;border:2px solid transparent;
  font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.btn .arw{transition:transform .3s var(--ease)}
.btn:hover .arw{transform:translateX(5px)}
.btn--solid{background:var(--orange);color:#fff;border-color:var(--orange)}
.btn--solid:hover{background:var(--orange-dark);border-color:var(--orange-dark);transform:translateY(-2px);box-shadow:0 12px 28px rgba(224,106,43,.34)}
.btn--ghost{border-color:rgba(255,255,255,.5);color:#fff}
.btn--ghost:hover{background:#fff;border-color:#fff;color:var(--navy);transform:translateY(-2px)}
.btn--navy{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn--navy:hover{background:var(--orange);border-color:var(--orange);transform:translateY(-2px);box-shadow:0 12px 28px rgba(224,106,43,.3)}

/* ---------------------------------------------------------------
   Reusable heading animation — gradient sweep + underline draw.
   Applied via .heading-sweep / .rule--draw, triggered once by the
   existing scroll-reveal system (.rv.is-in). Used by About Us and
   Diplomatic Insights; safe to reuse on any .h-sec heading.
--------------------------------------------------------------- */
.heading-sweep{
  background-image:linear-gradient(100deg,var(--navy) 30%,var(--gold-dark) 50%,var(--navy) 70%);
  background-size:250% 100%;background-position:200% 0;
  color:var(--navy);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.rv.is-in .heading-sweep{animation:heading-sweep-anim 1.6s ease-out .25s forwards}
@keyframes heading-sweep-anim{to{background-position:-40% 0}}
.rule--draw{transform:scaleX(0);transition:transform .9s var(--ease) .5s}
.rv.is-in .rule--draw{transform:scaleX(1)}

/* ---------------------------------------------------------------
   Slider (events, diplomatic insights)
--------------------------------------------------------------- */
.slider{position:relative;overflow:hidden;border-radius:3px;background:#000}
.slider__track{display:flex;transition:transform .8s var(--ease)}
.slider__slide{position:relative;min-width:100%;aspect-ratio:16/8}
.slider__slide img{width:100%;height:100%;object-fit:cover}
.slider__cap{
  position:absolute;inset:auto 0 0 0;padding:70px 40px 34px;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(21,27,43,.9));
}
.slider__cap h3{font-family:var(--f-display);font-size:clamp(17px,2vw,25px);font-weight:600;margin:0;line-height:1.35}
.slider__nav{
  position:absolute;top:50%;transform:translateY(-50%);z-index:3;
  width:46px;height:46px;border-radius:50%;border:0;
  background:rgba(255,255,255,.9);color:var(--navy);
  display:grid;place-items:center;font-size:19px;
  opacity:0;transition:opacity .3s var(--ease),background .3s var(--ease);
}
.slider:hover .slider__nav,.slider__nav:focus-visible{opacity:1}
.slider__nav:hover{background:var(--orange);color:#fff}
.slider__nav--prev{left:18px}
.slider__nav--next{right:18px}
.slider__dots{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);z-index:3;display:flex;gap:9px}
.slider__dots button{
  width:9px;height:9px;padding:0;border-radius:50%;border:0;
  background:rgba(255,255,255,.45);transition:background .3s var(--ease),width .3s var(--ease);
}
.slider__dots button.is-on{background:var(--orange);width:26px;border-radius:5px}
.sec-actions{
  margin-top:34px;text-align:center;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;
}

/* Diplomatic insights slider override — shared by homepage + gallery.php */
.insights .slider__slide{aspect-ratio:16/8.6}
.insights .slider__slide img{object-fit:contain;background:#000}
.insights .slider__cap h3{max-width:26ch}
.insights .slider__cap span{
  display:inline-block;margin-bottom:10px;font-size:11px;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--orange);
}

/* Caption-below treatment: image fitted with no letterboxing and the
   caption set underneath rather than overlaid. Used by the gallery and
   by every events slider. */
#gallery .slider,
.slider--below{background:none}
#gallery .slider__slide,
.slider--below .slider__slide{aspect-ratio:auto}
#gallery .slider__slide img,
.slider--below .slider__slide img{
  width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;border-radius:3px;
}
#gallery .slider__cap,
.slider--below .slider__cap{
  position:static;padding:22px 4px 0;background:none;color:var(--ink);
}
#gallery .slider__cap span,
.slider--below .slider__cap span{color:var(--orange)}
#gallery .slider__cap h3,
.slider--below .slider__cap h3{color:var(--navy);max-width:none}

/* The track clips to the slider box, but the caption sits outside the
   image, so the frame needs its own clip to keep neighbours hidden. */
.slider--below .slider__track{align-items:flex-start}
/* Arrows stay centred on the image, not on image+caption. */
.slider--below .slider__nav{top:33%}
.slider--below:hover .slider__nav{opacity:1}
.slider--below .slider__dots{position:static;transform:none;margin-top:22px;justify-content:center}
.slider--below .slider__dots button{background:rgba(21,27,43,.22)}
.slider--below .slider__dots button.is-on{background:var(--orange)}
.slider--below .slider__cap span{
  display:inline-block;margin-bottom:9px;font-size:11px;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;
}
.slider--below .slider__cap p{
  margin:10px auto 0;font-size:14.5px;line-height:1.7;color:var(--muted);max-width:70ch;
}

/* Institutional caption block. Lives inside .slider__slide, so it travels
   with its own image on every slide change — never an overlay, never fixed
   below the carousel. min-height reserves room for a two-line caption so
   short and long captions occupy the same space and the slider never jumps;
   anything longer simply grows the block. */
.slider--below .slider__cap{
  --cap-min:116px;
  text-align:center;padding:20px 20px 2px;min-height:var(--cap-min);
}
.slider--below .slider__cap h3{
  max-width:62ch;margin-inline:auto;line-height:1.45;text-wrap:balance;
}
.slider--below .slider__cap h3 a{
  color:inherit;background-image:linear-gradient(var(--orange),var(--orange));
  background-size:0 1px;background-position:0 100%;background-repeat:no-repeat;
  transition:background-size .35s var(--ease),color .25s var(--ease);
}
.slider--below .slider__cap h3 a:hover{color:var(--orange-dark);background-size:100% 1px}

@media (max-width:900px){
  .slider--below .slider__cap{--cap-min:96px;padding:16px 14px 2px}
}
@media (max-width:560px){
  .slider--below .slider__cap{--cap-min:84px;padding:14px 10px 2px}
  .slider--below .slider__cap h3{line-height:1.4}
  .slider--below .slider__dots{margin-top:16px}
}

/* Date / location line on an event report page */
.event-meta{
  margin:16px 0 0;font-size:12px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gold-dark);
}

/* ---------------------------------------------------------------
   Key initiatives
--------------------------------------------------------------- */
.inits{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:52px}
.init{
  position:relative;background:var(--paper);border:1px solid var(--line);
  padding:44px 28px 38px;border-radius:3px;overflow:hidden;
  transition:transform .38s var(--ease),box-shadow .38s var(--ease),border-color .38s var(--ease);
}
.init::before{
  content:"";position:absolute;inset:auto 0 0 0;height:3px;background:var(--orange);
  transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease);
}
.init:hover{transform:translateY(-9px);box-shadow:0 24px 48px rgba(21,27,43,.13);border-color:transparent}
.init:hover::before{transform:scaleX(1)}
.init__ico{
  width:56px;height:56px;display:grid;place-items:center;border-radius:50%;
  background:rgba(245,131,69,.1);color:var(--orange);font-size:21px;margin-bottom:22px;
  transition:background .38s var(--ease),color .38s var(--ease),transform .38s var(--ease);
}
.init:hover .init__ico{background:var(--orange);color:#fff;transform:rotate(90deg)}
.init h3{font-family:var(--f-display);font-size:20px;font-weight:700;color:var(--navy);margin:0 0 12px;line-height:1.3}
.init p{color:var(--muted);font-size:14.5px;margin:0;line-height:1.72}

/* ---------------------------------------------------------------
   Ask the CSIR Bharat / Contact
   Full-bleed photograph behind a left-aligned white glass card.
   Shared by the homepage #contact section and contact.php.
--------------------------------------------------------------- */
.ask{
  position:relative;overflow:hidden;
  /* navy-deep stays as the base so the section still reads correctly
     if the photograph is missing or slow to arrive */
  background:var(--navy-deep) url("../img/contact-bg.jpg") center/cover no-repeat;
}
/* Dark overlay — keeps the card edge and any text legible over the photo. */
.ask::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(100deg,rgba(13,44,56,.92) 0%,rgba(13,44,56,.74) 42%,rgba(13,44,56,.44) 100%),
    linear-gradient(180deg,rgba(13,44,56,.5) 0%,transparent 30%,rgba(13,44,56,.55) 100%);
}
/* Soft warm accent, echoing the previous section treatment. */
.ask::after{
  content:"";position:absolute;z-index:1;width:520px;height:520px;right:-160px;top:-160px;
  border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(197,107,60,.22),transparent 70%);
}

.ask__inner{position:relative;z-index:2;max-width:none;margin:0}
.ask__card{
  width:min(640px,100%);margin:0;padding:52px 52px 46px;
  background:rgba(255,253,252,.94);
  -webkit-backdrop-filter:blur(14px) saturate(115%);
  backdrop-filter:blur(14px) saturate(115%);
  border:1px solid rgba(255,255,255,.6);border-radius:22px;
  box-shadow:0 2px 6px rgba(13,44,56,.08),0 30px 70px rgba(13,44,56,.34);
}
/* Card lifts into place with the existing .rv scroll-reveal — no extra JS. */
.ask__card.rv{transform:translateY(28px) scale(.99)}
.ask__card.rv.is-in{transform:none}

.ask__head{text-align:left}
.ask .h-sec{color:var(--navy)}
.ask .h-sec .rule{margin-left:0;margin-right:0}
.ask .lede{color:var(--muted);margin-top:14px;max-width:46ch}

/* ---------------------------------------------------------------
   Enquiry form — light card treatment
--------------------------------------------------------------- */
.form{margin-top:34px}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{margin-bottom:18px;position:relative}
.field label{
  display:block;font-size:11.5px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--navy);margin-bottom:8px;
}
.field input,.field textarea{
  width:100%;padding:14px 16px;border-radius:12px;font:inherit;font-size:15px;
  color:var(--ink);background:var(--paper-alt);border:1px solid var(--line);
  transition:border-color .3s var(--ease),background .3s var(--ease),
             box-shadow .3s var(--ease),transform .3s var(--ease);
}
.field textarea{resize:vertical;min-height:128px}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);opacity:.7}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--orange);background:var(--paper);
  box-shadow:0 0 0 4px rgba(197,107,60,.14);transform:translateY(-1px);
}
.field.has-error input,.field.has-error textarea{
  border-color:#c0483f;background:rgba(192,72,63,.05);
}
.field__err{
  display:block;min-height:16px;margin-top:6px;font-size:12px;color:#b23b33;
  opacity:0;transform:translateY(-4px);
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.field.has-error .field__err{opacity:1;transform:none}

.form__submit{
  position:relative;overflow:hidden;min-width:210px;justify-content:center;
  border-radius:12px;background:var(--orange);color:#fff;border:2px solid var(--orange);
}
.form__submit:hover{
  background:var(--orange-dark);border-color:var(--orange-dark);
  transform:translateY(-2px);box-shadow:0 14px 32px rgba(197,107,60,.42);
}
.form__submit:focus-visible{outline:3px solid var(--gold-dark);outline-offset:3px}
.form__submit .lbl{display:inline-flex;align-items:center;gap:10px;transition:transform .4s var(--ease),opacity .3s var(--ease)}
.form__submit .done{
  position:absolute;inset:0;display:inline-flex;align-items:center;justify-content:center;gap:9px;
  transform:translateY(110%);transition:transform .45s var(--ease);
}
.form__submit.is-done{background:#2e9e6b;border-color:#2e9e6b;pointer-events:none}
.form__submit.is-done .lbl{transform:translateY(-110%);opacity:0}
.form__submit.is-done .done{transform:none}
.form__submit.is-sending{pointer-events:none;opacity:.75}
.tick{width:17px;height:17px;stroke:#fff;stroke-width:3;fill:none;stroke-linecap:round;stroke-linejoin:round}
.tick path{stroke-dasharray:26;stroke-dashoffset:26}
.form__submit.is-done .tick path{animation:tick .4s var(--ease) .15s forwards}
@keyframes tick{to{stroke-dashoffset:0}}
.form__note{margin-top:16px;font-size:13px;color:var(--muted)}
.form__status{margin-top:14px;font-size:14px;color:#1f7a52;min-height:20px}

@media (min-width:1025px){
  /* Very subtle parallax; desktop pointers only — iOS ignores fixed
     attachment and Android repaints badly while scrolling. */
  @media (hover:hover) and (prefers-reduced-motion:no-preference){
    .ask{background-attachment:fixed}
  }
}
@media (max-width:900px){
  .ask__card{width:100%;padding:40px 32px 36px}
  .ask::after{width:340px;height:340px;right:-120px;top:-120px}
}
@media (max-width:560px){
  .ask__card{padding:32px 22px 28px;border-radius:18px}
  .ask .lede{max-width:none}
  .form__submit{width:100%}
}
@media (prefers-reduced-motion:reduce){
  .ask__card.rv{transform:none}
  .field input:focus,.field textarea:focus{transform:none}
}

/* ---------------------------------------------------------------
   Work with us
--------------------------------------------------------------- */
.work__grid{display:grid;grid-template-columns:1.05fr 1fr;gap:62px;align-items:center}
.work__media{position:relative;border-radius:3px;overflow:hidden}
.work__media img{transition:transform 1.1s var(--ease)}
.work__media:hover img{transform:scale(1.05)}
.work__body h3{font-family:var(--f-display);font-size:clamp(23px,2.6vw,31px);font-weight:700;color:var(--navy);margin:0 0 16px}
.work__body p{color:var(--muted);font-size:16.5px;margin:0 0 14px}
.work__dur{
  display:inline-flex;align-items:center;gap:9px;margin:6px 0 30px;
  padding:9px 17px;border-radius:2px;background:rgba(245,131,69,.1);
  color:var(--orange-dark);font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
}

/* Longer copy reads better against the top of the image than centred. */
.work__grid:has(.work__facts){align-items:start}
.work__body p{max-width:62ch;line-height:1.8}
.work__body p+p{margin-top:14px}

/* Key facts — Duration / Format side by side, Contact spanning beneath,
   so the row breaks deliberately rather than wrapping into a ragged gap. */
.work__facts{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;margin:30px 0 32px;
}
.work__fact:last-child{grid-column:1/-1}
.work__fact{
  padding:16px 18px;border-radius:14px;
  background:var(--paper-alt);border:1px solid var(--line);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.work__fact:hover{
  transform:translateY(-3px);border-color:var(--gold);
  box-shadow:0 14px 30px rgba(21,27,43,.09);
}
.work__fact dt{
  font-size:10.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--orange-dark);margin-bottom:7px;line-height:1.4;
}
.work__fact dd{
  margin:0;font-family:var(--f-display);font-size:16.5px;font-weight:700;
  color:var(--navy);line-height:1.45;
}
.work__fact dd a{
  color:var(--navy);background-image:linear-gradient(var(--orange),var(--orange));
  background-size:0 1px;background-position:0 100%;background-repeat:no-repeat;
  transition:background-size .35s var(--ease),color .25s var(--ease);word-break:break-word;
}
.work__fact dd a:hover{color:var(--orange-dark);background-size:100% 1px}
.work__fact dd a:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:2px}

/* Continuous soft glow on the primary CTA. Halo only — the label never
   changes opacity, so contrast and readability stay constant. */
.btn--pulse{position:relative;animation:btn-glow 2.8s var(--ease) infinite}
@keyframes btn-glow{
  0%,100%{box-shadow:0 0 0 0 rgba(18,59,74,.34),0 8px 20px rgba(21,27,43,.12)}
  50%{box-shadow:0 0 0 12px rgba(18,59,74,0),0 8px 20px rgba(21,27,43,.12)}
}
/* Hover/focus takes over from the pulse so the two never fight. */
.btn--pulse:hover,.btn--pulse:focus-visible{animation:none}
@media (prefers-reduced-motion:reduce){
  .btn--pulse{animation:none}
  .work__fact:hover{transform:none}
}

@media (max-width:900px){
  .work__facts{grid-template-columns:1fr;gap:12px;margin:26px 0 28px}
  .work__fact:last-child{grid-column:auto}
  .work__body p{max-width:none}
}
@media (max-width:560px){
  .work__cta .btn{width:100%;justify-content:center}
}

/* ---------------------------------------------------------------
   Collaborators
--------------------------------------------------------------- */
.collabs{display:grid;grid-template-columns:1fr 1fr;gap:34px;margin-top:52px;max-width:930px;margin-left:auto;margin-right:auto}
.collab{
  position:relative;overflow:hidden;border-radius:3px;border:1px solid var(--line);background:#fff;
  transition:transform .42s var(--ease),box-shadow .42s var(--ease),border-color .42s var(--ease);
}
.collab img{aspect-ratio:3/2;object-fit:contain;width:100%;padding:26px;background:#fff;transition:transform .6s var(--ease)}
.collab:hover{transform:translateY(-8px);box-shadow:0 22px 46px rgba(21,27,43,.15);border-color:transparent}
.collab:hover img{transform:scale(1.045)}
.collab::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,transparent 38%,rgba(245,131,69,.16) 50%,transparent 62%);
  transform:translateX(-120%);transition:transform .85s var(--ease);
}
.collab:hover::after{transform:translateX(120%)}

/* ---------------------------------------------------------------
   Publications
--------------------------------------------------------------- */
.tabs{display:flex;justify-content:center;gap:8px;margin:38px 0 52px}
.tabs button{
  padding:12px 30px;border:1px solid var(--line);background:#fff;border-radius:2px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.tabs button:hover{color:var(--navy);border-color:var(--navy)}
.tabs button.is-on{background:var(--navy);border-color:var(--navy);color:#fff}
.tabpanel[hidden]{display:none}

.books{display:grid;grid-template-columns:repeat(2,minmax(0,268px));gap:56px;justify-content:center}
.book{perspective:1400px}
.book__fig{
  position:relative;margin:0;border-radius:2px;overflow:hidden;
  transform-style:preserve-3d;
  box-shadow:0 12px 28px rgba(21,27,43,.16);
  transition:transform .6s var(--ease),box-shadow .6s var(--ease);
  will-change:transform;
}
.book:hover .book__fig,.book:focus-within .book__fig{
  transform:translateY(-12px) rotateX(4deg) rotateY(-7deg) scale(1.035);
  box-shadow:0 40px 66px rgba(21,27,43,.3);
}
.book__fig img{width:100%;aspect-ratio:3/4.4;object-fit:cover}
.book__fig::before{
  content:"";position:absolute;inset:0 auto 0 0;width:11px;z-index:2;
  background:linear-gradient(90deg,rgba(0,0,0,.3),rgba(0,0,0,.05) 62%,transparent);
}
.book__fig::after{
  content:"";position:absolute;inset:-60%;z-index:3;pointer-events:none;
  background:linear-gradient(115deg,transparent 40%,rgba(255,255,255,.55) 50%,transparent 60%);
  transform:translateX(-130%) rotate(0deg);
  transition:transform 1s var(--ease);
}
.book:hover .book__fig::after,.book:focus-within .book__fig::after{transform:translateX(130%)}
.book__meta{margin-top:20px;text-align:center}
.book__meta h3{font-family:var(--f-display);font-size:17px;font-weight:700;color:var(--navy);margin:0 0 5px;line-height:1.35}
.book__meta span{font-size:13px;color:var(--muted)}

.briefs{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:760px;margin:0 auto}
.brief{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:26px 28px;border:1px solid var(--line);border-radius:3px;background:#fff;
  transition:border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.brief:hover{border-color:var(--orange);transform:translateY(-4px);box-shadow:0 16px 34px rgba(21,27,43,.1)}
.brief h3{font-family:var(--f-display);font-size:17px;font-weight:700;color:var(--navy);margin:0 0 3px}
.brief span{font-size:13px;color:var(--muted)}
.brief .arw{color:var(--orange);font-size:19px;transition:transform .3s var(--ease)}
.brief:hover .arw{transform:translateX(5px)}

/* ---------------------------------------------------------------
   Closing
--------------------------------------------------------------- */
.closing{background:var(--paper-alt);text-align:center;padding:104px 0}
.closing h2{
  font-family:var(--f-display);font-weight:600;color:var(--navy);margin:0 0 20px;
  font-size:clamp(28px,4.4vw,50px);line-height:1.2;
}
.closing h2 span{color:var(--orange)}
.closing p{max-width:60ch;margin:0 auto;color:var(--muted);font-size:17px}

/* ---------------------------------------------------------------
   Inner pages
--------------------------------------------------------------- */
.page-main{padding-top:calc(var(--header-h) + var(--topbar-h))}
/* Shown by includes/partials/events-slider.php when a list has no entries. */
.events-empty{
  max-width:560px;margin:44px auto 0;padding:44px 32px;text-align:center;
  background:var(--paper);border:1px solid var(--line);border-radius:20px;
}
.events-empty p{margin:0 0 24px;color:var(--muted);font-size:16.5px;line-height:1.7}

.page-body{max-width:760px;margin:52px auto 0;color:var(--muted);font-size:17px}
.page-body h2{font-family:var(--f-display);font-size:28px;font-weight:700;color:var(--navy);margin:38px 0 14px}
.page-body h3{font-family:var(--f-display);font-size:21px;font-weight:700;color:var(--navy);margin:30px 0 12px}
.page-body p{margin:0 0 18px}
.page-body a{color:var(--orange-dark);text-decoration:underline;text-underline-offset:3px}
.page-body img{border-radius:3px;margin:26px 0}
.page-body ul,.page-body ol{margin:0 0 18px;padding-left:22px}
.page-body li{margin-bottom:8px}
.page-body blockquote{
  margin:26px 0;padding:4px 0 4px 22px;border-left:3px solid var(--orange);
  font-family:var(--f-display);font-size:19px;font-style:italic;color:var(--navy);
}

/* ---------------------------------------------------------------
   Back-to-top button
--------------------------------------------------------------- */
.totop{
  position:fixed;right:24px;bottom:24px;z-index:90;width:46px;height:46px;border-radius:50%;border:0;
  background:var(--orange);color:#fff;font-size:17px;display:grid;place-items:center;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s,background .3s var(--ease);
  box-shadow:0 10px 26px rgba(224,106,43,.36);
}
.totop.is-on{opacity:1;visibility:visible;transform:none}
.totop:hover{background:var(--navy)}

/* ---------------------------------------------------------------
   Reveal on scroll
--------------------------------------------------------------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .75s var(--ease),transform .75s var(--ease)}
.rv.is-in{opacity:1;transform:none}
.rv[data-d="1"]{transition-delay:.1s}
.rv[data-d="2"]{transition-delay:.2s}
.rv[data-d="3"]{transition-delay:.3s}

/* ---------------------------------------------------------------
   Our Team
--------------------------------------------------------------- */
.team .lede{max-width:56ch;margin:14px auto 0}
.team__section-head{margin-top:80px}

.team__directors{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;
  max-width:680px;margin:48px auto 0;
}
.team__grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:24px;
  max-width:620px;margin:40px auto 0;
}
.team__fellow{max-width:300px;margin:40px auto 0}

/* Portrait-led card: a small arched photo above centred type, rather
   than a full-bleed image. Keeps the row calm at any column count. */
.team-card{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  background:var(--paper);border:1px solid var(--line);border-radius:20px;
  padding:32px 22px 28px;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
}
.team-card--director{padding:38px 26px 32px}
.team-card:hover{
  transform:translateY(-6px);box-shadow:0 22px 44px rgba(21,27,43,.12);
  border-color:var(--gold);
}

/* Gold hairline traced just outside the arch — the detail that makes a
   photo and a monogram read as the same deliberate frame. */
.team-card__media{
  position:relative;width:106px;aspect-ratio:4/5;flex:none;
  border-radius:53px 53px 12px 12px;background:var(--paper-alt);
}
.team-card--director .team-card__media{width:130px;border-radius:65px 65px 14px 14px}
.team-card__media::before{
  content:"";position:absolute;inset:-7px;border-radius:60px 60px 18px 18px;
  border:1px solid var(--gold);opacity:.5;
  transition:opacity .4s var(--ease),transform .4s var(--ease);
}
.team-card--director .team-card__media::before{border-radius:72px 72px 20px 20px}
.team-card:hover .team-card__media::before{opacity:1;transform:scale(1.04)}

.team-card__media img,
.team-card__placeholder{border-radius:inherit}
/* Absolute, not height:100% — against the container's aspect-ratio height
   the intrinsic size would win and make photo cards taller than monograms. */
.team-card__media img{
  position:absolute;inset:0;display:block;width:100%;height:100%;
  object-fit:cover;object-position:center top;
  box-shadow:0 8px 20px rgba(21,27,43,.16);transition:transform .8s var(--ease);
}
.team-card:hover .team-card__media img{transform:translateY(-2px)}
.team-card__placeholder{
  position:absolute;inset:0;display:grid;place-items:center;
  font-family:var(--f-display);font-weight:700;color:var(--navy);
  letter-spacing:.06em;opacity:.32;
  background:linear-gradient(165deg,var(--paper-alt) 0%,var(--paper) 100%);
  box-shadow:inset 0 0 0 1px var(--line);
  transition:opacity .4s var(--ease);
}
.team-card:hover .team-card__placeholder{opacity:.46}
.team-card--director .team-card__placeholder{font-size:32px}
.team-card--advisory .team-card__placeholder,
.team-card--fellow .team-card__placeholder{font-size:26px}

.team-card__body{padding:26px 0 0;display:flex;flex-direction:column;align-items:center}
.team-card--director .team-card__body{padding-top:30px}
.team-card__name{
  font-family:var(--f-display);font-weight:700;color:var(--navy);
  margin:0 0 10px;line-height:1.28;
}
.team-card--director .team-card__name{font-size:20px}
.team-card--advisory .team-card__name,
.team-card--fellow .team-card__name{font-size:17px}

/* Title sits between two short gold rules — echoes .rule on the headings. */
.team-card__title{
  position:relative;font-size:10.5px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gold-dark);margin:0;padding-bottom:14px;
}
.team-card__title::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:26px;height:1px;background:var(--gold-dark);opacity:.55;
}
.team-card__email{
  display:inline-block;margin-top:14px;font-size:12.5px;color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.team-card__email:hover{color:var(--orange-dark);border-bottom-color:var(--orange-dark)}

.team-card--fellow .team-card__title{color:var(--orange-dark)}
.team-card--fellow .team-card__title::after{background:var(--orange-dark)}
.team-card--fellow .team-card__media::before{border-color:var(--orange);opacity:.4}

@media (max-width:900px){
  .team__section-head{margin-top:60px}
}
@media (max-width:560px){
  .team__directors{grid-template-columns:1fr;max-width:300px;gap:22px}
  .team__grid{grid-template-columns:1fr;max-width:300px}
}

/* ---------------------------------------------------------------
   Research Articles table
   Layout, spacing and interaction from the supplied design, mapped
   onto the CSIR tokens. Everything is scoped to .articles so the bare
   table/th/td rules cannot leak into other pages.
--------------------------------------------------------------- */
.articles__inner{max-width:var(--wrap);margin:44px auto 0}

.articles .controls{
  display:flex;justify-content:space-between;align-items:center;
  margin-bottom:20px;flex-wrap:wrap;gap:12px;
}
.articles .entries-control,
.articles .search-control{
  display:flex;align-items:center;gap:8px;font-size:.875rem;color:var(--muted);
}
.articles .entries-control select,
.articles .search-control input{
  border:1px solid var(--line);border-radius:6px;
  font-family:var(--f-body);font-size:.875rem;color:var(--ink);
  background:var(--paper);outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.articles .entries-control select{padding:5px 8px;cursor:pointer}
.articles .search-control input{padding:6px 12px;width:200px}
.articles .entries-control select:focus,
.articles .search-control input:focus{
  border-color:var(--orange);box-shadow:0 0 0 3px rgba(197,107,60,.12);
}

.articles .table-wrap{
  border:1px solid var(--line);border-radius:10px;overflow:hidden;
  box-shadow:0 2px 12px rgba(21,27,43,.06);background:var(--paper);
}
.articles table{width:100%;border-collapse:collapse;font-size:.9rem}
.articles thead tr{background:var(--paper-alt);border-bottom:2px solid var(--line)}
.articles th{
  padding:14px 18px;font-weight:600;font-size:.82rem;text-align:left;
  text-transform:uppercase;letter-spacing:.05em;color:var(--muted);
  white-space:nowrap;user-select:none;transition:color .2s var(--ease);
}
.articles th[data-sort]{cursor:pointer}
.articles th[data-sort]:hover,
.articles th[data-sort]:focus-visible{color:var(--navy)}
.articles th[data-sort]:focus-visible{outline:2px solid var(--orange);outline-offset:-2px}
.articles th .sort-icon{
  display:inline-flex;flex-direction:column;margin-left:5px;gap:2px;
  vertical-align:middle;opacity:.5;transition:opacity .2s var(--ease);
}
.articles th[aria-sort="ascending"] .sort-icon,
.articles th[aria-sort="descending"] .sort-icon{opacity:1;color:var(--orange)}
.articles th[aria-sort="ascending"] .sort-icon .desc,
.articles th[aria-sort="descending"] .sort-icon .asc{opacity:.25}
.articles th .sort-icon .asc{
  width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;
  border-bottom:5px solid currentColor;
}
.articles th .sort-icon .desc{
  width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;
  border-top:5px solid currentColor;
}
.articles th:nth-child(1){width:80px;text-align:center}
.articles th:nth-child(3){width:260px}
.articles th:nth-child(4){width:130px;text-align:center}

.articles tbody tr{
  border-bottom:1px solid var(--line);
  transition:background .18s var(--ease),transform .18s var(--ease);
  animation:row-in .4s var(--ease) both;
}
@keyframes row-in{
  from{opacity:0;transform:translateX(-8px)}
  to{opacity:1;transform:translateX(0)}
}
.articles tbody tr:nth-child(even){background:var(--paper-alt)}
.articles tbody tr:hover{background:rgba(197,107,60,.07);transform:translateX(3px)}
.articles tbody tr:last-child{border-bottom:none}

.articles td{padding:15px 18px;vertical-align:middle;line-height:1.5}
.articles td:first-child{text-align:center;color:var(--muted);font-weight:500}
.articles td:last-child{text-align:center}
.articles .article-title{font-weight:500;color:var(--ink)}
.articles .author-name{color:var(--muted);font-size:.875rem}

.articles .view-link{
  position:relative;color:var(--orange-dark);font-weight:600;font-size:.85rem;
  white-space:nowrap;transition:color .2s var(--ease);
}
.articles .view-link::after{
  content:"";position:absolute;bottom:-2px;left:0;width:0;height:1.5px;
  background:var(--orange);transition:width .25s var(--ease);
}
.articles a.view-link:hover{color:var(--orange)}
.articles a.view-link:hover::after{width:100%}
/* Links not published yet — keeps the column structure without a dead anchor. */
.articles .view-link--pending{cursor:default;opacity:.9}

.articles .no-results{
  text-align:center;padding:48px 24px;color:var(--muted);font-size:.95rem;
}
.articles .no-results[hidden]{display:none}

.articles .table-footer{
  display:flex;justify-content:space-between;align-items:center;
  margin-top:20px;flex-wrap:wrap;gap:12px;
}
.articles .showing-info{font-size:.85rem;color:var(--muted)}
.articles .pagination{display:flex;gap:4px;align-items:center;flex-wrap:wrap}
.articles .pagination button{
  border:1px solid var(--line);background:var(--paper);color:var(--ink);
  font-family:var(--f-body);font-size:.85rem;padding:6px 11px;border-radius:6px;
  cursor:pointer;transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.articles .pagination button:hover:not(:disabled){
  background:var(--orange);border-color:var(--orange);color:#fff;
}
.articles .pagination button.is-active{
  background:var(--orange);border-color:var(--orange);color:#fff;font-weight:600;
}
.articles .pagination button:disabled{opacity:.35;cursor:default}

@media (max-width:700px){
  .articles th:nth-child(3),
  .articles td:nth-child(3){display:none}
  .articles th:nth-child(2){width:auto}
  .articles .search-control input{width:140px}
  .articles .controls{gap:10px}
  .articles th,.articles td{padding:12px 10px}
  /* The desktop 80px / 130px columns plus nowrap headers overflow a phone
     and get clipped by .table-wrap; let them shrink and wrap instead. */
  .articles th{white-space:normal}
  .articles th:nth-child(1){width:46px}
  .articles th:nth-child(4){width:92px}
  .articles .view-link{font-size:.78rem;white-space:normal}
}
@media (prefers-reduced-motion:reduce){
  .articles tbody tr{animation:none}
  .articles tbody tr:hover{transform:none}
}