/* ═══════════════════════════════════════════
   GRAJALES CAPITAL — Shared Stylesheet
   Multi-page website
═══════════════════════════════════════════ */

/* ── Reset & Variables ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:       #1a75bb;
  --blue-dark:  #0d5a92;
  --blue-light: #2ab3e8;
  --blue-pale:  #e8f4fc;
  --navy:       #0a2d4a;
  --accent:     #f0a500;
  --white:      #ffffff;
  --gray-bg:    #f4f7fb;
  --text:       #1e2a38;
  --muted:      #596f80;
  --border:     #d8e3ec;
  --radius:     10px;
  --shsm:       0 2px 10px rgba(0,0,0,.08);
  --shmd:       0 6px 24px rgba(0,0,0,.12);
  --shlg:       0 16px 48px rgba(0,0,0,.16);
  --tr:         .28s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Segoe UI', system-ui, Arial, sans-serif;
  color: var(--text); background: var(--white);
  line-height: 1.7; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; object-fit: cover; }
ul  { list-style: none; }

/* ── Container ── */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ── Section ── */
.section     { padding: 96px 0; }
.section-alt { background: var(--gray-bg); }

/* ── Tags & Titles ── */
.tag {
  display: inline-block;
  background: var(--blue-pale); color: var(--blue);
  font-size: .72rem; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; padding: 6px 14px; border-radius: 20px;
  margin-bottom: 12px;
}
.tag.white { background: rgba(255,255,255,.18); color: #fff; }

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 800; color: var(--navy);
  line-height: 1.2; margin-bottom: 14px;
}
.section-title.white { color: #fff; }

.section-lead {
  color: var(--muted); font-size: 1.05rem;
  max-width: 620px; margin-bottom: 52px;
}
.section-lead.white { color: rgba(255,255,255,.78); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 30px; border-radius: var(--radius);
  font-weight: 700; font-size: .95rem;
  cursor: pointer; transition: var(--tr); border: 2px solid transparent;
}
.btn-primary  { background: var(--blue); color: #fff; }
.btn-primary:hover  { background: var(--blue-dark); transform: translateY(-2px); box-shadow: var(--shmd); }
.btn-outline  { background: transparent; color: #fff; border-color: #fff; }
.btn-outline:hover  { background: #fff; color: var(--blue); }
.btn-accent   { background: var(--accent); color: var(--navy); }
.btn-accent:hover   { filter: brightness(1.08); transform: translateY(-2px); }
.btn-ghost    { background: transparent; color: var(--blue); border-color: var(--blue); }
.btn-ghost:hover    { background: var(--blue); color: #fff; }

/* ══════════════════════════════════════════
   HEADER / NAV
══════════════════════════════════════════ */
#header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: var(--blue-dark);
  box-shadow: 0 2px 20px rgba(0,0,0,.22);
  transition: background var(--tr);
}
#header.hero-page { background: transparent; }
#header.scrolled  { background: var(--blue-dark) !important; box-shadow: 0 2px 20px rgba(0,0,0,.22); }

.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}

/* Logo */
.nav-logo {
  display: flex; align-items: center; gap: 12px;
  color: #fff; font-weight: 800; font-size: 1.1rem;
}
.logo-badge {
  width: 44px; height: 44px; background: #fff;
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  font-weight: 900; color: var(--blue); font-size: 1rem; flex-shrink: 0;
}
.logo-text { line-height: 1.2; }
.logo-text small { display: block; font-size: .62rem; font-weight: 400; opacity: .7; letter-spacing: 1px; }

/* Nav links */
.nav-links { display: flex; gap: 4px; }
.nav-links a {
  color: rgba(255,255,255,.85); font-size: .88rem; font-weight: 600;
  padding: 8px 13px; border-radius: 8px; transition: var(--tr);
}
.nav-links a:hover,
.nav-links a.active { color: #fff; background: rgba(255,255,255,.18); }
.nav-cta { background: var(--accent); color: var(--navy) !important; padding: 8px 18px !important; border-radius: 8px; }
.nav-cta:hover { filter: brightness(1.1); background: var(--accent) !important; }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 8px; background: none; border: none;
}
.hamburger span { display: block; width: 26px; height: 2px; background: #fff; border-radius: 2px; transition: var(--tr); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

.mobile-nav { display: none; background: var(--navy); padding: 8px 0 20px; }
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block; color: rgba(255,255,255,.88); padding: 13px 24px;
  font-weight: 600; border-bottom: 1px solid rgba(255,255,255,.08);
}
.mobile-nav a.active { color: var(--blue-light); }

/* ══════════════════════════════════════════
   PAGE HERO (inner pages)
══════════════════════════════════════════ */
.page-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  padding: 140px 0 80px; color: #fff; position: relative; overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; top: -80px; right: -80px;
  width: 420px; height: 420px;
  background: rgba(255,255,255,.05); border-radius: 50%;
}
.page-hero-content { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 900; margin-bottom: 12px; }
.page-hero p  { color: rgba(255,255,255,.78); font-size: 1.1rem; max-width: 560px; }
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: .8rem; color: rgba(255,255,255,.6);
  margin-bottom: 20px;
}
.breadcrumb a { color: rgba(255,255,255,.7); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { color: var(--blue-light); font-weight: 700; }

/* ══════════════════════════════════════════
   STATS BAR
══════════════════════════════════════════ */
.stats-bar { background: var(--blue); padding: 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.stat-item {
  text-align: center; padding: 28px 20px;
  border-right: 1px solid rgba(255,255,255,.15);
}
.stat-item:last-child { border-right: none; }
.stat-num   { font-size: 2.2rem; font-weight: 900; color: #fff; display: block; }
.stat-label { font-size: .8rem; color: rgba(255,255,255,.75); }

/* ══════════════════════════════════════════
   SERVICE CARDS
══════════════════════════════════════════ */
.services-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }

.srv-card {
  background: #fff; border-radius: 14px;
  padding: 32px 26px; border: 1px solid var(--border);
  box-shadow: var(--shsm); transition: var(--tr);
  position: relative; overflow: hidden;
}
.srv-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 4px; background: var(--blue);
  transform: scaleX(0); transform-origin: left; transition: var(--tr);
}
.srv-card:hover { transform: translateY(-6px); box-shadow: var(--shlg); }
.srv-card:hover::after { transform: scaleX(1); }

.srv-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--blue-pale);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; margin-bottom: 20px;
}
.srv-title { font-size: 1rem; font-weight: 800; color: var(--navy); margin-bottom: 10px; }
.srv-desc  { font-size: .89rem; color: var(--muted); line-height: 1.68; }
.srv-link  {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--blue); font-size: .85rem; font-weight: 700;
  margin-top: 14px; transition: var(--tr);
}
.srv-link:hover { gap: 10px; }

/* ══════════════════════════════════════════
   TABS (SERVICIOS DETALLE)
══════════════════════════════════════════ */
.tabs-section { background: var(--navy); padding: 96px 0; }

.tabs-nav { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 40px; }
.tab-btn {
  padding: 10px 20px; border-radius: 8px; font-size: .86rem; font-weight: 700;
  cursor: pointer; border: 2px solid rgba(255,255,255,.2);
  background: transparent; color: rgba(255,255,255,.7); transition: var(--tr);
}
.tab-btn.active, .tab-btn:hover { background: var(--blue); border-color: var(--blue); color: #fff; }

.tab-content { display: none; }
.tab-content.active { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }

.tab-img { height: 360px; border-radius: 16px; overflow: hidden; box-shadow: var(--shlg); }
.tab-img img { width: 100%; height: 100%; }

.tab-text h3 { font-size: 1.7rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
.tab-text p  { color: rgba(255,255,255,.75); line-height: 1.75; margin-bottom: 16px; }

.tab-bullets { margin-top: 20px; }
.tab-bullets li {
  display: flex; align-items: flex-start; gap: 12px;
  color: rgba(255,255,255,.8); font-size: .93rem; margin-bottom: 12px;
}
.tab-bullets li::before { content: '✓'; color: var(--blue-light); font-weight: 900; flex-shrink: 0; }

/* ══════════════════════════════════════════
   TEAM CARDS
══════════════════════════════════════════ */
.team-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 32px; max-width: 860px; margin: 0 auto; }

.team-card {
  background: #fff; border-radius: 18px;
  overflow: hidden; box-shadow: var(--shmd);
  transition: var(--tr); cursor: pointer;
}
.team-card:hover { transform: translateY(-8px); box-shadow: var(--shlg); }

.team-photo { height: 260px; overflow: hidden; position: relative; }
.team-photo img { width: 100%; height: 100%; transition: transform .5s ease; }
.team-card:hover .team-photo img { transform: scale(1.07); }

.team-photo-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,45,74,.7) 0%, transparent 55%);
  display: flex; align-items: flex-end; padding: 20px;
}
.team-role-badge {
  background: var(--blue); color: #fff;
  font-size: .72rem; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; padding: 5px 12px; border-radius: 20px;
}
.team-info { padding: 24px; }
.team-name  { font-size: 1.2rem; font-weight: 800; color: var(--navy); }
.team-title { font-size: .85rem; color: var(--blue); font-weight: 600; margin: 4px 0 10px; }
.team-short { font-size: .88rem; color: var(--muted); line-height: 1.6; }
.team-cta   {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--blue); font-size: .84rem; font-weight: 700; margin-top: 14px;
}

/* ══════════════════════════════════════════
   GALLERY
══════════════════════════════════════════ */
.gallery-filter { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.gf-btn {
  padding: 8px 20px; border-radius: 20px; font-size: .85rem; font-weight: 700;
  cursor: pointer; border: 2px solid var(--border); background: #fff;
  color: var(--muted); transition: var(--tr);
}
.gf-btn.active, .gf-btn:hover { background: var(--blue); border-color: var(--blue); color: #fff; }

.gallery-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.gallery-item {
  position: relative; border-radius: 12px; overflow: hidden;
  cursor: pointer; aspect-ratio: 4/3;
}
.gallery-item img { width: 100%; height: 100%; transition: transform .4s; }
.gallery-item:hover img { transform: scale(1.08); }
.gallery-item.large { grid-column: span 2; }

.gi-overlay {
  position: absolute; inset: 0;
  background: rgba(10,45,74,.6);
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; opacity: 0; transition: var(--tr);
  color: #fff; text-align: center; padding: 16px;
}
.gallery-item:hover .gi-overlay { opacity: 1; }
.gi-overlay h4 { font-size: 1rem; font-weight: 800; margin-bottom: 4px; }
.gi-overlay p  { font-size: .8rem; opacity: .85; }
.gi-overlay .zoom { font-size: 1.5rem; margin-bottom: 8px; }

/* ══════════════════════════════════════════
   VALUES
══════════════════════════════════════════ */
.values-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.val-card {
  background: #fff; border-radius: 14px; padding: 28px 22px;
  border-top: 4px solid var(--blue); box-shadow: var(--shsm);
  transition: var(--tr);
}
.val-card:hover { transform: translateY(-4px); box-shadow: var(--shmd); }
.val-icon  { font-size: 2rem; margin-bottom: 14px; }
.val-title { font-weight: 800; color: var(--navy); font-size: .97rem; margin-bottom: 8px; }
.val-text  { font-size: .87rem; color: var(--muted); line-height: 1.65; }

/* ══════════════════════════════════════════
   CONTACT
══════════════════════════════════════════ */
.contact-layout { display: grid; grid-template-columns: 1fr 1.6fr; gap: 56px; align-items: start; }

.contact-card { background: var(--navy); color: #fff; border-radius: 18px; padding: 40px 34px; }
.contact-card h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 8px; }
.contact-card > p { color: rgba(255,255,255,.7); font-size: .95rem; margin-bottom: 32px; }

.cinfo-item { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
.cinfo-icon {
  width: 46px; height: 46px; background: var(--blue); border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.15rem; flex-shrink: 0;
}
.cinfo-label { font-size: .72rem; font-weight: 700; color: var(--blue-light); text-transform: uppercase; letter-spacing: 1px; }
.cinfo-value { font-size: .95rem; font-weight: 600; }

.social-row { display: flex; gap: 12px; margin-top: 28px; }
.soc-btn {
  width: 44px; height: 44px; background: rgba(255,255,255,.12); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: .95rem; transition: var(--tr); cursor: pointer;
}
.soc-btn:hover { background: var(--blue); transform: translateY(-3px); }

.form-wrap { background: #fff; border-radius: 18px; padding: 42px 38px; box-shadow: var(--shmd); }
.form-wrap h3 { font-size: 1.3rem; font-weight: 800; color: var(--navy); margin-bottom: 28px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: .82rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%; padding: 12px 16px; border: 2px solid var(--border);
  border-radius: 8px; font-size: .95rem; color: var(--text);
  font-family: inherit; background: var(--gray-bg); transition: var(--tr);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none; border-color: var(--blue); background: #fff;
  box-shadow: 0 0 0 3px rgba(26,117,187,.12);
}
.form-group textarea { min-height: 130px; resize: vertical; }
.form-submit {
  width: 100%; padding: 15px; background: var(--blue); color: #fff;
  border: none; border-radius: 10px; font-size: 1rem; font-weight: 700;
  cursor: pointer; transition: var(--tr);
}
.form-submit:hover { background: var(--blue-dark); transform: translateY(-2px); }
.form-note { text-align: center; font-size: .78rem; color: var(--muted); margin-top: 12px; }
.form-toast { display: none; text-align: center; padding: 14px; border-radius: 8px; margin-top: 16px; font-weight: 600; }
.form-toast.ok  { background: #e8f5e9; color: #2e7d32; display: block; }
.form-toast.err { background: #fbe9e7; color: #c62828; display: block; }

/* ══════════════════════════════════════════
   FOUNDATION SECTION
══════════════════════════════════════════ */
.fund-section {
  padding: 96px 0;
  background: linear-gradient(135deg, var(--navy) 0%, #0d3d68 100%);
  color: #fff;
}
.fund-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.fund-img { height: 400px; border-radius: 16px; overflow: hidden; box-shadow: var(--shlg); position: relative; }
.fund-img img { width: 100%; height: 100%; }
.fund-img-badge {
  position: absolute; top: 20px; left: 20px;
  background: rgba(255,255,255,.15); backdrop-filter: blur(8px);
  color: #fff; padding: 10px 18px; border-radius: 20px;
  font-size: .78rem; font-weight: 700;
}
.fund-pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
.fund-pillar { background: rgba(255,255,255,.08); border-radius: 12px; padding: 20px 18px; border: 1px solid rgba(255,255,255,.1); }
.fund-pillar-icon  { font-size: 1.6rem; margin-bottom: 8px; }
.fund-pillar-title { font-weight: 700; color: var(--blue-light); font-size: .92rem; }
.fund-pillar-text  { font-size: .83rem; color: rgba(255,255,255,.7); margin-top: 4px; }

/* ══════════════════════════════════════════
   CTA BANNER
══════════════════════════════════════════ */
.cta-banner {
  background: var(--blue); padding: 72px 0; text-align: center;
}
.cta-banner h2 { font-size: clamp(1.6rem,3vw,2.4rem); font-weight: 800; color: #fff; margin-bottom: 14px; }
.cta-banner p  { color: rgba(255,255,255,.8); font-size: 1.05rem; margin-bottom: 32px; }
.cta-banner .btn-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
#footer { background: var(--navy); padding: 64px 0 0; color: rgba(255,255,255,.7); }

.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand p { font-size: .88rem; line-height: 1.7; margin-top: 16px; }
.footer-col h4 {
  color: #fff; font-size: .9rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 18px;
}
.footer-col a {
  display: block; color: rgba(255,255,255,.65); font-size: .88rem;
  margin-bottom: 10px; transition: var(--tr);
}
.footer-col a:hover { color: var(--blue-light); padding-left: 4px; }
.footer-bottom { text-align: center; padding: 20px 0; font-size: .82rem; color: rgba(255,255,255,.4); }

/* ══════════════════════════════════════════
   MODALS
══════════════════════════════════════════ */
.modal-overlay {
  position: fixed; inset: 0; z-index: 9000;
  background: rgba(10,45,74,.82); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px; opacity: 0; pointer-events: none; transition: opacity .3s;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }

.modal-box {
  background: #fff; border-radius: 18px; max-width: 780px;
  width: 100%; max-height: 90vh; overflow-y: auto;
  transform: translateY(30px); transition: transform .3s; box-shadow: var(--shlg);
  position: relative;
}
.modal-overlay.open .modal-box { transform: translateY(0); }

.modal-close {
  position: absolute; top: 16px; right: 18px;
  background: rgba(0,0,0,.08); border: none;
  width: 38px; height: 38px; border-radius: 50%;
  font-size: 1.2rem; cursor: pointer; transition: var(--tr);
}
.modal-close:hover { background: rgba(0,0,0,.18); }

.modal-header { height: 220px; overflow: hidden; border-radius: 18px 18px 0 0; position: relative; }
.modal-header img { width: 100%; height: 100%; }
.modal-header-info {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,45,74,.85) 0%, transparent 55%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 28px;
}
.modal-header-info h2 { font-size: 1.6rem; font-weight: 900; color: #fff; }
.modal-header-info span { font-size: .85rem; color: var(--blue-light); font-weight: 600; }

.modal-body { padding: 32px; }
.modal-body p  { color: var(--muted); font-size: .97rem; line-height: 1.75; margin-bottom: 16px; }
.modal-body h4 { font-size: 1rem; font-weight: 800; color: var(--navy); margin: 20px 0 10px; }
.spec-list { display: flex; flex-wrap: wrap; gap: 10px; }
.spec-tag { background: var(--blue-pale); color: var(--blue); font-size: .8rem; font-weight: 700; padding: 6px 14px; border-radius: 20px; }

/* ══════════════════════════════════════════
   LIGHTBOX
══════════════════════════════════════════ */
.lightbox {
  position: fixed; inset: 0; z-index: 9500;
  background: rgba(0,0,0,.92);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img  { max-width: 90vw; max-height: 85vh; border-radius: 8px; }
.lb-close {
  position: absolute; top: 20px; right: 24px;
  color: #fff; font-size: 2rem; cursor: pointer; background: none; border: none;
}
.lb-cap { position: absolute; bottom: 24px; left: 0; right: 0; text-align: center; color: rgba(255,255,255,.8); font-size: .9rem; }

/* ══════════════════════════════════════════
   LIGHTBOX (alias class used in pages)
══════════════════════════════════════════ */
.lightbox-overlay {
  position: fixed; inset: 0; z-index: 9500;
  background: rgba(0,0,0,.92);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.lightbox-overlay.open { opacity: 1; pointer-events: auto; }
.lb-img  { max-width: 90vw; max-height: 80vh; border-radius: 8px; object-fit: contain; }
.lb-close {
  position: absolute; top: 20px; right: 24px;
  color: #fff; font-size: 2rem; cursor: pointer; background: none; border: none;
}
.lb-cap { text-align: center; color: rgba(255,255,255,.8); font-size: .9rem; margin-top: 14px; }

/* ── Gallery overlays (used in servicios.html) ── */
.gallery-filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.gal-overlay {
  position: absolute; inset: 0;
  background: rgba(10,45,74,.6);
  display: flex; align-items: flex-end; padding: 16px;
  opacity: 0; transition: var(--tr);
}
.gallery-item:hover .gal-overlay { opacity: 1; }
.gal-caption { color: #fff; font-size: .9rem; font-weight: 700; }

/* ── Page hero title classes ── */
.hero-page-title { font-size: clamp(2rem, 4vw, 3rem); font-weight: 900; color: #fff; margin-bottom: 12px; }
.hero-page-lead  { color: rgba(255,255,255,.78); font-size: 1.1rem; max-width: 580px; }

/* ── Scroll top ── */
#scroll-top {
  position: fixed; bottom: 30px; right: 30px; z-index: 800;
  width: 48px; height: 48px; background: var(--blue); color: #fff;
  border: none; border-radius: 50%; font-size: 1.3rem; cursor: pointer;
  box-shadow: var(--shmd); transition: var(--tr); opacity: 0; pointer-events: none;
}
#scroll-top.visible { opacity: 1; pointer-events: auto; }
#scroll-top:hover { background: var(--blue-dark); transform: translateY(-3px); }

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid   { grid-template-columns: 1fr 1fr; }
  .stats-grid    { grid-template-columns: repeat(2,1fr); }
  .values-grid   { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 860px) {
  .contact-layout { grid-template-columns: 1fr; }
  .fund-layout    { grid-template-columns: 1fr; }
  .tab-content.active { grid-template-columns: 1fr; }
  .team-grid      { grid-template-columns: 1fr 1fr; }
  .gallery-grid   { grid-template-columns: 1fr 1fr; }
  .gallery-item.large { grid-column: span 1; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section   { padding: 64px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .team-grid     { grid-template-columns: 1fr; }
  .gallery-grid  { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr; gap: 28px; }
  .values-grid   { grid-template-columns: 1fr 1fr; }
  .fund-pillars  { grid-template-columns: 1fr; }
  .form-row      { grid-template-columns: 1fr; }
  .form-wrap     { padding: 28px 20px; }
  .stats-grid    { grid-template-columns: repeat(2,1fr); }
}