/* ═══════════════════════════════════════════════
   main.css — Kamarob Nature Fund
   Main site styles (index.html)
   ═══════════════════════════════════════════════ */

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

/* ── CSS Variables ──────────────────────────── */
:root {
  --bg:       #0b160d;
  --bg2:      #111e13;
  --bg3:      #0e1a0f;
  --green:    #2a5c24;
  --accent:   #6db840;
  --gold:     #c9a227;
  --text:     #ddebd8;
  --muted:    #7a9b76;
  --white:    #f0f5ee;
  --card-bg:  rgba(20, 40, 18, 0.75);
  --radius:   14px;
  --tr:       .35s cubic-bezier(.4, 0, .2, 1);
}

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a   { color: inherit; text-decoration: none; }

/* ── Scrollbar ──────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ── Skip link (accessibility) ──────────────── */
.skip-link {
  position: absolute; top: -50px; left: 1rem;
  padding: .6rem 1rem; background: var(--accent); color: var(--bg);
  font-weight: 700; border-radius: 6px; z-index: 9999;
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }

/* ── Floating particles ─────────────────────── */
.particles { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.particle {
  position: absolute; width: 5px; height: 5px;
  background: var(--accent); border-radius: 50%; opacity: 0;
  animation: float var(--dur, 12s) var(--delay, 0s) infinite linear;
}
@keyframes float {
  0%   { transform: translateY(110vh) translateX(0) scale(0); opacity: 0; }
  10%  { opacity: .2; }
  90%  { opacity: .08; }
  100% { transform: translateY(-10vh) translateX(var(--dx, 20px)) scale(1.2); opacity: 0; }
}

/* ═══════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 5%;
  transition: background var(--tr), backdrop-filter var(--tr);
}
nav.scrolled {
  background: rgba(11, 22, 13, .9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(109, 184, 64, .15);
}
.nav-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.3rem; font-weight: 700; color: var(--white);
  display: flex; align-items: center; gap: .5rem;
}
.nav-logo em { color: var(--accent); font-style: normal; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a {
  font-size: .88rem; font-weight: 500; color: var(--muted);
  transition: color var(--tr); position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -3px; left: 0; right: 0;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transition: transform var(--tr);
}
.nav-links a:hover, .nav-links a:focus { color: var(--white); outline: none; }
.nav-links a:hover::after, .nav-links a:focus::after { transform: scaleX(1); }
.nav-links a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 3px; }
.nav-cta {
  background: var(--accent) !important; color: var(--bg) !important;
  padding: .45rem 1.2rem; border-radius: 50px; font-weight: 600 !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { box-shadow: 0 6px 18px rgba(109, 184, 64, .4); }

/* Language switcher */
.lang-switcher { display: flex; gap: .3rem; margin-left: .5rem; }
.lang-btn {
  background: transparent; border: 1px solid rgba(109, 184, 64, .25);
  color: var(--muted); padding: .3rem .55rem; border-radius: 6px;
  font-size: .75rem; font-weight: 600; cursor: pointer;
  transition: all var(--tr); text-transform: uppercase;
  font-family: 'Inter', sans-serif;
}
.lang-btn:hover, .lang-btn.active {
  background: var(--accent); color: var(--bg); border-color: var(--accent);
}

/* Hamburger menu */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: .4rem;
}
.hamburger span { width: 24px; height: 2px; background: var(--white); transition: var(--tr); display: block; }

/* Mobile menu open */
nav.menu-open .nav-links {
  display: flex; flex-direction: column;
  position: fixed; inset: 0; top: 65px;
  background: rgba(5, 13, 6, .97); backdrop-filter: blur(12px);
  padding: 3rem 2rem; gap: 2rem; z-index: 99;
}
nav.menu-open .nav-links a { font-size: 1.3rem; }

/* ═══════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════ */
#hero {
  position: relative; height: 100vh; min-height: 580px;
  display: flex; align-items: center; overflow: hidden;
}
.hero-video-wrap { position: absolute; inset: 0; }
.hero-video-wrap video { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); }
.hero-fallback {
  position: absolute; inset: 0;
  background: url('../images/hero.jpg') center/cover no-repeat; z-index: -1;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(11,22,13,.88) 0%, rgba(11,22,13,.45) 55%, rgba(11,22,13,.75) 100%);
}
.hero-content { position: relative; z-index: 2; padding: 0 10%; max-width: 800px; }
.hero-tag {
  display: inline-block; font-size: .73rem; font-weight: 600;
  letter-spacing: .15em; text-transform: uppercase;
  color: var(--accent); border: 1px solid rgba(109,184,64,.4);
  padding: .3rem .85rem; border-radius: 50px; margin-bottom: 1.4rem;
  animation: fadeUp .8s .2s both;
}
.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.6rem, 6vw, 5.2rem); font-weight: 900;
  line-height: 1.08; color: var(--white);
  animation: fadeUp .8s .4s both;
}
.hero-title em { color: var(--accent); font-style: normal; }
.hero-sub {
  margin-top: 1.3rem; font-size: 1.05rem; color: var(--muted);
  max-width: 500px; animation: fadeUp .8s .6s both;
}
.hero-btns { display: flex; gap: 1rem; margin-top: 2.3rem; flex-wrap: wrap; animation: fadeUp .8s .8s both; }
.hero-scroll {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  z-index: 2; display: flex; flex-direction: column; align-items: center; gap: .4rem;
  color: var(--muted); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase;
  animation: fadeIn 1s 1.2s both;
}
.hero-scroll .line {
  width: 1px; height: 46px;
  background: linear-gradient(to bottom, var(--muted), transparent);
  animation: lineGrow 1.5s 1.4s infinite;
}
@keyframes lineGrow { 0%,100%{transform:scaleY(1);opacity:.5} 50%{transform:scaleY(1.3);opacity:1} }

/* ═══════════════════════════════════════════════
   BUTTONS (shared)
   ═══════════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .8rem 1.8rem; border-radius: 50px;
  font-weight: 600; font-size: .92rem; cursor: pointer;
  border: none; transition: all var(--tr); font-family: 'Inter', sans-serif;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(109,184,64,.4); }
.btn-outline { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,.3); }
.btn-outline:hover { background: rgba(255,255,255,.08); transform: translateY(-3px); }

/* ═══════════════════════════════════════════════
   STATS BAR
   ═══════════════════════════════════════════════ */
#stats {
  position: relative; z-index: 5;
  background: linear-gradient(90deg, #1a3d16, var(--green));
  padding: 3rem 10%; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem;
}
.stat-item { text-align: center; }
.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 900; color: var(--white);
}
.stat-num sup { font-size: .5em; vertical-align: super; }
.stat-label {
  font-size: .78rem; color: rgba(255,255,255,.6);
  text-transform: uppercase; letter-spacing: .1em; margin-top: .3rem;
}

/* ═══════════════════════════════════════════════
   SECTIONS (shared)
   ═══════════════════════════════════════════════ */
section { position: relative; z-index: 1; }
.section-inner { padding: 6rem 10%; }
.section-tag {
  font-size: .73rem; font-weight: 600; letter-spacing: .18em;
  text-transform: uppercase; color: var(--accent); margin-bottom: .7rem;
}
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.9rem, 3.8vw, 3rem); font-weight: 800;
  color: var(--white); line-height: 1.15;
}
.section-title em { color: var(--accent); font-style: normal; }
.section-sub { color: var(--muted); max-width: 540px; margin-top: .9rem; }

/* ═══════════════════════════════════════════════
   MISSION SECTION
   ═══════════════════════════════════════════════ */
#mission { background: var(--bg2); }
.mission-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; margin-top: 3.5rem; }
.mission-text p { color: var(--muted); margin-top: 1rem; }
.quote { margin-top: 2rem; border-left: 3px solid var(--accent); padding-left: 1.1rem; font-family: 'Playfair Display', serif; font-size: 1rem; color: var(--white); font-style: italic; }
.mission-pillars { display: flex; flex-direction: column; gap: 1.3rem; }
.pillar {
  background: var(--card-bg); border: 1px solid rgba(109,184,64,.12);
  border-radius: var(--radius); padding: 1.3rem 1.6rem; backdrop-filter: blur(8px);
  display: flex; gap: 1rem; align-items: flex-start;
  transition: border-color var(--tr), transform var(--tr);
}
.pillar:hover { border-color: rgba(109,184,64,.35); transform: translateX(6px); }
.pillar-icon { font-size: 1.6rem; min-width: 2rem; filter: drop-shadow(0 0 6px rgba(109,184,64,.4)); }
.pillar h3 { font-size: .95rem; font-weight: 600; color: var(--white); margin-bottom: .3rem; }
.pillar p  { font-size: .85rem; color: var(--muted); }

/* ═══════════════════════════════════════════════
   PROGRAMS SECTION
   ═══════════════════════════════════════════════ */
#programs { background: var(--bg); }
#programs::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(42,92,36,.18) 0%, transparent 70%);
  pointer-events: none;
}
.programs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; margin-top: 3.5rem; }
.program-card {
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid rgba(109,184,64,.1); background: var(--card-bg); backdrop-filter: blur(8px);
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
}
.program-card:hover { transform: translateY(-8px); box-shadow: 0 20px 50px rgba(0,0,0,.5); border-color: rgba(109,184,64,.3); }
.program-img { width: 100%; height: 210px; object-fit: cover; transition: transform .6s ease; }
.program-card:hover .program-img { transform: scale(1.05); }
.program-body { padding: 1.4rem; }
.program-badge {
  display: inline-block; font-size: .68rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); background: rgba(109,184,64,.12);
  border-radius: 50px; padding: .22rem .7rem; margin-bottom: .8rem;
}
.program-body h3 { font-size: 1.08rem; font-weight: 700; color: var(--white); margin-bottom: .5rem; }
.program-body p  { font-size: .85rem; color: var(--muted); }

/* ═══════════════════════════════════════════════
   ABOUT SECTION
   ═══════════════════════════════════════════════ */
#about { background: #0e1a0f; }
#about::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 50% at 0% 50%, rgba(109,184,64,.06) 0%, transparent 70%);
  pointer-events: none;
}
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; margin-top: 3.5rem; }
.about-photos { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.about-photos img { border-radius: 10px; width: 100%; object-fit: cover; transition: transform var(--tr); }
.about-photos img:first-child { grid-column: span 2; height: 250px; }
.about-photos img:nth-child(2), .about-photos img:nth-child(3) { height: 170px; }
.about-photos img:hover { transform: scale(1.02); }
.about-text p { color: var(--muted); margin-top: .9rem; }

/* ═══════════════════════════════════════════════
   VIDEO SECTION
   ═══════════════════════════════════════════════ */
#video-section { background: #060e07; }
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 3rem; }
.video-wrap {
  border-radius: var(--radius); overflow: hidden;
  position: relative; background: #000;
  border: 1px solid rgba(109,184,64,.12);
}
.video-wrap video { width: 100%; display: block; max-height: 340px; object-fit: cover; }
.video-caption { padding: 1rem 1.2rem; background: var(--card-bg); }
.video-caption h4 { font-size: .95rem; font-weight: 600; color: var(--white); margin-bottom: .3rem; }
.video-caption p  { font-size: .82rem; color: var(--muted); }

/* ═══════════════════════════════════════════════
   GALLERY SECTION
   ═══════════════════════════════════════════════ */
#gallery { background: var(--bg2); }
.gallery-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 190px; gap: .7rem; margin-top: 2.5rem;
}
.gallery-item { overflow: hidden; border-radius: 8px; cursor: pointer; position: relative; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.gallery-item:hover img, .gallery-item:focus img { transform: scale(1.08); }
.gallery-item .overlay {
  position: absolute; inset: 0; background: rgba(11,22,13,.55);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity var(--tr);
}
.gallery-item:hover .overlay, .gallery-item:focus .overlay { opacity: 1; }
.overlay-icon { font-size: 1.8rem; }
.gi-wide { grid-column: span 2; }
.gi-tall { grid-row: span 2; }

/* ── Lightbox ── */
#lightbox {
  position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,.93); display: none; align-items: center; justify-content: center;
}
#lightbox.active { display: flex; }
#lightbox img { max-width: 90vw; max-height: 85vh; border-radius: 8px; }
#lb-close {
  position: absolute; top: 1.2rem; right: 1.2rem;
  font-size: 2rem; color: #fff; cursor: pointer; background: none; border: none; z-index: 1000;
}
#lb-prev, #lb-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,.1); border: none; color: #fff;
  font-size: 2rem; padding: .5rem .9rem; cursor: pointer; border-radius: 8px; transition: background .2s;
}
#lb-prev:hover, #lb-next:hover { background: rgba(255,255,255,.2); }
#lb-prev { left: 1.2rem; }
#lb-next { right: 1.2rem; }

/* ═══════════════════════════════════════════════
   EXPEDITIONS SECTION
   ═══════════════════════════════════════════════ */
#expeditions { background: var(--bg); }
#expeditions::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 100% 50%, rgba(42,92,36,.12) 0%, transparent 70%);
  pointer-events: none;
}
.expeditions-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.6rem; margin-top: 3rem; }
.exp-card {
  background: var(--card-bg); border: 1px solid rgba(109,184,64,.12);
  border-radius: var(--radius); padding: 2rem; backdrop-filter: blur(8px);
  transition: border-color var(--tr), transform var(--tr);
}
.exp-card:hover { border-color: rgba(109,184,64,.3); transform: translateY(-4px); }
.exp-meta { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 1rem; }
.exp-chip {
  font-size: .72rem; font-weight: 600; letter-spacing: .08em;
  padding: .2rem .7rem; border-radius: 50px;
  background: rgba(109,184,64,.1); color: var(--accent);
}
.exp-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--white); margin-bottom: .6rem; }
.exp-card p  { font-size: .86rem; color: var(--muted); }
.exp-card .exp-link { display: inline-block; margin-top: 1.2rem; font-size: .85rem; font-weight: 600; color: var(--accent); transition: color var(--tr); }
.exp-card .exp-link:hover { color: var(--white); }
#exp-loading { text-align: center; color: var(--muted); padding: 2rem; }

/* ═══════════════════════════════════════════════
   GET INVOLVED SECTION
   ═══════════════════════════════════════════════ */
#involve { background: var(--bg2); }
.involve-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 3.5rem; }
.involve-card {
  background: var(--card-bg); border: 1px solid rgba(109,184,64,.12);
  border-radius: var(--radius); padding: 2.3rem; backdrop-filter: blur(8px);
  display: flex; flex-direction: column; gap: .9rem; transition: border-color var(--tr);
}
.involve-card:hover { border-color: rgba(109,184,64,.3); }
.involve-card .ic-icon { font-size: 2.3rem; }
.involve-card h3 { font-family: 'Playfair Display', serif; font-size: 1.4rem; color: var(--white); }
.involve-card p { color: var(--muted); font-size: .92rem; flex: 1; }
.involve-card .btn { align-self: flex-start; }

/* ═══════════════════════════════════════════════
   CONTACT SECTION
   ═══════════════════════════════════════════════ */
#contact { background: #0a1209; }
#contact::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 70% at 50% 100%, rgba(42,92,36,.15) 0%, transparent 70%);
  pointer-events: none;
}
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 5rem; align-items: start; margin-top: 3.5rem; }
.contact-info p { color: var(--muted); margin-top: 1rem; }
.contact-detail { display: flex; align-items: center; gap: .7rem; margin-top: .8rem; color: var(--muted); font-size: .88rem; }
.contact-detail span:first-child { font-size: 1.1rem; }
.security-badge {
  display: flex; align-items: flex-start; gap: .6rem; margin-top: 2rem;
  padding: 1rem 1.2rem; background: rgba(109,184,64,.06);
  border: 1px solid rgba(109,184,64,.18); border-radius: 10px; font-size: .8rem; color: var(--muted);
}
.security-badge .lock { font-size: 1.1rem; flex-shrink: 0; }
.security-badge strong { color: var(--accent); }

/* ── Contact Form ── */
.contact-form {
  background: var(--card-bg); border: 1px solid rgba(109,184,64,.12);
  border-radius: var(--radius); padding: 2.3rem; backdrop-filter: blur(8px);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .35rem; margin-bottom: 1.1rem; }
.form-group label { font-size: .8rem; font-weight: 500; color: var(--muted); letter-spacing: .04em; }
.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(255,255,255,.04); border: 1px solid rgba(109,184,64,.18);
  border-radius: 8px; color: var(--white); font-family: 'Inter', sans-serif;
  font-size: .93rem; padding: .75rem .95rem; outline: none;
  transition: border-color var(--tr), box-shadow var(--tr);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(109,184,64,.15); }
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,.18); }
.form-group select option { background: #0b160d; }
.form-group textarea { resize: vertical; min-height: 110px; }
.hp-field { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }
.form-submit {
  width: 100%; padding: .95rem; background: var(--accent); color: var(--bg);
  border: none; border-radius: 50px; font-family: 'Inter', sans-serif;
  font-size: .97rem; font-weight: 700; cursor: pointer; transition: all var(--tr);
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(109,184,64,.4); }
.form-submit:disabled { opacity: .5; cursor: not-allowed; transform: none; }
#form-msg { margin-top: .7rem; text-align: center; font-size: .85rem; color: var(--accent); min-height: 1.1em; }
#form-msg.error { color: #e05a5a; }

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
footer { background: #050d06; padding: 3.5rem 10% 2rem; border-top: 1px solid rgba(109,184,64,.1); }
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 3rem;
  padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,.05);
}
.footer-brand .nav-logo { margin-bottom: .9rem; }
.footer-brand p { color: var(--muted); font-size: .86rem; max-width: 280px; line-height: 1.7; }
.footer-col h4 { color: var(--white); font-weight: 600; font-size: .88rem; margin-bottom: 1.1rem; }
.footer-col a { display: block; color: var(--muted); font-size: .85rem; margin-bottom: .55rem; transition: color var(--tr); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 1.6rem; font-size: .8rem; color: var(--muted); flex-wrap: wrap; gap: .5rem;
}
.footer-bottom a { color: var(--muted); transition: color var(--tr); }
.footer-bottom a:hover { color: var(--accent); }

/* ═══════════════════════════════════════════════
   TOAST NOTIFICATION
   ═══════════════════════════════════════════════ */
#toast {
  position: fixed; bottom: 2rem; left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--card-bg); backdrop-filter: blur(12px);
  border: 1px solid rgba(109,184,64,.3); color: var(--white);
  padding: .8rem 1.5rem; border-radius: 50px; font-size: .88rem;
  z-index: 500; transition: transform .4s cubic-bezier(.34,1.56,.64,1), opacity .4s; opacity: 0;
}
#toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ═══════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.reveal { opacity: 0; transform: translateY(38px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left  { opacity: 0; transform: translateX(-38px); transition: opacity .7s ease, transform .7s ease; }
.reveal-right { opacity: 0; transform: translateX(38px);  transition: opacity .7s ease, transform .7s ease; }
.reveal-left.visible, .reveal-right.visible { opacity: 1; transform: translateX(0); }
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }
.delay-4 { transition-delay: .4s; }

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .mission-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .programs-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  #stats { grid-template-columns: repeat(2, 1fr); }
  .expeditions-grid { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section-inner { padding: 4rem 6%; }
  .hero-content { padding: 0 6%; }
  .programs-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 150px; }
  .involve-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  #stats { padding: 2.5rem 6%; }
}