/* =========================================================
   BV Being We — World-Class NGO Website Styles
   Mobile-First · CSS Custom Properties · Modern Layout
   ========================================================= */

/* ---------- Custom Properties ---------- */
:root {
  --clr-primary:    #6C63FF;
  --clr-primary-d:  #5046E5;
  --clr-accent:     #E94560;
  --clr-accent-d:   #D13350;
  --clr-dark:       #0F0E17;
  --clr-body:       #1A1A2E;
  --clr-surface:    #16213E;
  --clr-surface-lt: #1E2A47;
  --clr-text:       #E4E4E7;
  --clr-muted:      #A1A1AA;
  --clr-white:      #FFFFFF;
  --clr-glass:      rgba(255,255,255,.06);
  --clr-glass-border: rgba(255,255,255,.10);
  --ff-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --ff-serif: 'Playfair Display', Georgia, serif;
  --radius-sm: .5rem;
  --radius:    1rem;
  --radius-lg: 1.5rem;
  --shadow-sm:  0 2px 8px rgba(0,0,0,.18);
  --shadow:     0 8px 32px rgba(0,0,0,.25);
  --shadow-lg:  0 16px 64px rgba(0,0,0,.35);
  --transition: .35s cubic-bezier(.4,0,.2,1);
  --max-w:    1200px;
  --header-h: 72px;
}

/* ---------- Reset & Base ---------- */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  font-family: var(--ff-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--clr-text);
  background: var(--clr-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; }
::selection { background: var(--clr-primary); color: #fff; }

.container { width: 90%; max-width: var(--max-w); margin: 0 auto; }

/* Gradient text utility */
.text-gradient {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Preloader ---------- */
.preloader {
  position: fixed; inset: 0; z-index: 9999;
  display: grid; place-items: center;
  background: var(--clr-dark);
  transition: opacity .5s, visibility .5s;
}
.preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-ring {
  width: 56px; height: 56px;
  border: 4px solid var(--clr-glass-border);
  border-top-color: var(--clr-primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Header / Navbar ---------- */
.header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  height: var(--header-h);
  background: rgba(15,14,23,.6);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--clr-glass-border);
  transition: background var(--transition), box-shadow var(--transition);
}
.header.scrolled { background: rgba(15,14,23,.92); box-shadow: var(--shadow-sm); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }

/* Logo */
.logo { display: flex; align-items: center; gap: .6rem; font-weight: 700; }
.logo__icon {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: #fff; font-size: .85rem; font-weight: 800; letter-spacing: 1px;
}
.logo__text { font-size: 1.15rem; color: var(--clr-white); }

/* Nav — Desktop */
.nav__list { display: flex; gap: .25rem; align-items: center; }
.nav__link {
  display: inline-block; padding: .5rem 1rem;
  font-size: .875rem; font-weight: 500;
  color: var(--clr-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover, .nav__link.active { color: var(--clr-white); background: var(--clr-glass); }
.nav__cta {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent)) !important;
  color: #fff !important; font-weight: 600;
  border-radius: 50px; padding: .5rem 1.3rem;
}
.nav__cta:hover { opacity: .9; }

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

/* ---------- HERO ---------- */
.hero {
  position: relative; display: flex; align-items: center; justify-content: center;
  min-height: 100vh; overflow: hidden;
  background: radial-gradient(ellipse at center, var(--clr-surface) 0%, var(--clr-dark) 80%);
}
.hero__canvas { position: absolute; inset: 0; z-index: 1; }
.hero__overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(180deg, rgba(15,14,23,.4) 0%, rgba(15,14,23,.85) 100%);
}
.hero__content {
  position: relative; z-index: 3; text-align: center;
  padding: 6rem 1rem 4rem;
  max-width: 720px;
}
.hero__badge {
  display: inline-block; padding: .35rem .9rem;
  border: 1px solid var(--clr-glass-border);
  border-radius: 50px;
  font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 2px;
  color: var(--clr-muted); margin-bottom: 1.5rem;
}
.hero__title {
  font-family: var(--ff-serif); font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 700; line-height: 1.15; color: var(--clr-white);
  margin-bottom: 1.25rem;
}
.hero__title em { font-style: italic; color: var(--clr-primary); }
.hero__sub { font-size: 1.05rem; color: var(--clr-muted); margin-bottom: 1rem; max-width: 600px; margin-inline: auto; }
.hero__tagline { font-family: var(--ff-serif); font-style: italic; font-size: 1.05rem; color: var(--clr-accent); margin-bottom: 2.5rem; }
.hero__actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Scroll cue */
.scroll-cue {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  z-index: 3; color: var(--clr-muted); font-size: 1.5rem;
  animation: bounce 2s infinite;
}
@keyframes bounce { 0%,100%{ transform: translateX(-50%) translateY(0); } 50%{ transform: translateX(-50%) translateY(8px); } }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.75rem;
  font-weight: 600; font-size: .95rem;
  border-radius: 50px;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}
.btn:hover { transform: translateY(-2px); }
.btn--accent {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: #fff; box-shadow: 0 4px 20px rgba(108,99,255,.35);
}
.btn--accent:hover { box-shadow: 0 8px 32px rgba(108,99,255,.45); }
.btn--outline {
  border: 2px solid rgba(255,255,255,.2); color: var(--clr-white); background: transparent;
}
.btn--outline:hover { border-color: var(--clr-primary); color: var(--clr-primary); }
.btn--sm { padding: .55rem 1.3rem; font-size: .85rem; }
.btn--block { width: 100%; justify-content: center; }

/* ---------- SECTIONS (shared) ---------- */
.section { padding: 6rem 0; }
.section__head { text-align: center; margin-bottom: 3.5rem; }
.section__tag {
  display: inline-block; padding: .3rem .9rem;
  border: 1px solid var(--clr-glass-border);
  border-radius: 50px;
  font-size: .7rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--clr-primary); margin-bottom: .75rem;
}
.section__title {
  font-family: var(--ff-serif); font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700; color: var(--clr-white); line-height: 1.25;
}
.section__sub { color: var(--clr-muted); font-size: 1rem; max-width: 520px; margin-inline: auto; margin-top: .75rem; }

/* ---------- ABOUT ---------- */
.about__grid { display: grid; gap: 3rem; align-items: center; }
.about__text .lead { font-size: 1.1rem; line-height: 1.8; margin-bottom: 1rem; }
.about__text p { color: var(--clr-muted); margin-bottom: 1.25rem; }
.about__stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; margin-top: 1.5rem; }
.stat {
  background: var(--clr-glass);
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius);
  padding: 1.25rem; text-align: center;
}
.stat__num { display: block; font-size: 2rem; font-weight: 800; color: var(--clr-primary); }
.stat__label { font-size: .78rem; font-weight: 500; color: var(--clr-muted); letter-spacing: 1px; text-transform: uppercase; }
.about__img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.about__img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

/* ---------- IMPACT ---------- */
.impact { background: var(--clr-dark); }
.impact__grid { display: grid; gap: 1.5rem; }
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--clr-primary); }
.card__icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: 14px;
  font-size: 1.3rem;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: #fff; margin-bottom: 1.25rem;
}
.card__title { font-size: 1.1rem; font-weight: 700; color: var(--clr-white); margin-bottom: .5rem; }
.card p { color: var(--clr-muted); font-size: .92rem; }

/* ---------- VISION ---------- */
.vision__grid { display: grid; gap: 3rem; align-items: center; }
.vision__text .lead { font-size: 1.1rem; line-height: 1.8; margin-bottom: 1rem; }
.vision__text p { color: var(--clr-muted); margin-bottom: 1rem; }
.vision__text .italic { font-style: italic; color: var(--clr-accent); }
.vision__badge {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--clr-glass); border: 1px solid var(--clr-glass-border);
  border-radius: 50px; padding: .4rem 1rem;
  font-size: .85rem; color: var(--clr-accent); margin-bottom: 1.5rem;
}
.vision__badge i { font-size: .8rem; }
.vision__img { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.vision__img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.vision__year {
  position: absolute; bottom: 1rem; right: 1rem;
  font-family: var(--ff-serif); font-weight: 700; font-size: 3.5rem;
  color: rgba(255,255,255,.12); pointer-events: none;
}

/* ---------- PROGRAMS ---------- */
.programs { background: var(--clr-dark); }
.programs__grid { display: grid; gap: 1.25rem; }
.prog {
  display: flex; gap: 1.25rem; align-items: flex-start;
  background: var(--clr-surface);
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.prog:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--clr-primary); }
.prog__icon {
  flex-shrink: 0; width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--clr-glass); color: var(--clr-primary); font-size: 1.1rem;
}
.prog h3 { font-size: 1rem; font-weight: 700; color: var(--clr-white); margin-bottom: .25rem; }
.prog p { color: var(--clr-muted); font-size: .9rem; }

/* ---------- TEAM ---------- */
.team__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 1.5rem; }
.member {
  text-align: center;
  transition: transform var(--transition);
}
.member:hover { transform: translateY(-6px); }
.member img {
  width: 120px; height: 120px;
  border-radius: 50%; object-fit: cover;
  border: 3px solid var(--clr-glass-border);
  margin: 0 auto 0.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.member:hover img { border-color: var(--clr-primary); box-shadow: 0 0 0 6px rgba(108,99,255,.2); }
.member figcaption { font-weight: 600; font-size: .9rem; color: var(--clr-white); }

.volunteers {
  margin-top: 3rem; text-align: center;
  background: var(--clr-glass); border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius-lg); padding: 2.5rem 2rem;
}
.volunteers h3 { font-size: 1.25rem; font-weight: 700; color: var(--clr-white); margin-bottom: .5rem; }
.volunteers h3 i { color: var(--clr-accent); }
.volunteers p { color: var(--clr-muted); max-width: 600px; margin: 0 auto 1.5rem; font-size: .95rem; }

/* ---------- CONTACT ---------- */
.contact { background: var(--clr-dark); }
.contact__grid { display: grid; gap: 2.5rem; }
.contact__card {
  display: flex; align-items: center; gap: 1rem;
  background: var(--clr-surface); border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius); padding: 1.15rem 1.25rem;
  text-decoration: none; color: inherit;
  transition: transform var(--transition), border-color var(--transition);
}
.contact__card:hover { transform: translateX(6px); border-color: var(--clr-primary); }
.contact__card i { font-size: 1.3rem; color: var(--clr-primary); flex-shrink: 0; }
.contact__card strong { color: var(--clr-white); }
.contact__info { display: flex; flex-direction: column; gap: 1rem; }
.contact__socials { display: flex; gap: .75rem; margin-top: .5rem; }
.contact__socials a {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--clr-glass); border: 1px solid var(--clr-glass-border);
  font-size: 1.15rem; color: var(--clr-muted);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.contact__socials a:hover { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); }

/* Form */
.contact__form {
  background: var(--clr-surface); border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius-lg); padding: 2rem 1.5rem;
}
.contact__form h3 { font-size: 1.25rem; font-weight: 700; color: var(--clr-white); margin-bottom: 1.5rem; }
.form__row { display: grid; gap: 1rem; margin-bottom: 1rem; }
.form__field { position: relative; margin-bottom: .5rem; }
.form__field input,
.form__field textarea,
.form__field select {
  width: 100%; padding: .85rem 1rem;
  background: var(--clr-surface-lt); border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius-sm); color: var(--clr-white);
  font-size: .95rem; font-family: inherit;
  transition: border-color var(--transition);
  outline: none;
}
.form__field input:focus,
.form__field textarea:focus,
.form__field select:focus { border-color: var(--clr-primary); }
.form__field label {
  position: absolute; left: 1rem; top: .85rem;
  font-size: .9rem; color: var(--clr-muted);
  pointer-events: none;
  transition: var(--transition);
}
.form__field input:not(:placeholder-shown) + label,
.form__field textarea:not(:placeholder-shown) + label,
.form__field input:focus + label,
.form__field textarea:focus + label {
  transform: translateY(-1.6rem) scale(.78);
  color: var(--clr-primary);
  background: var(--clr-surface-lt);
  padding: 0 .3rem;
}
.form__field select { appearance: none; cursor: pointer; }
.form__field select option { background: var(--clr-surface); }

/* ---------- FOOTER ---------- */
.footer { background: var(--clr-surface); padding-top: 4rem; }
.footer__inner { display: grid; gap: 2.5rem; padding-bottom: 3rem; }
.footer__brand p { color: var(--clr-muted); font-size: .9rem; font-style: italic; margin: .75rem 0; max-width: 280px; }
.footer__socials { display: flex; gap: .5rem; }
.footer__socials a {
  width: 38px; height: 38px;
  display: grid; place-items: center; border-radius: 50%;
  background: var(--clr-glass); border: 1px solid var(--clr-glass-border);
  color: var(--clr-muted); font-size: .95rem;
  transition: background var(--transition), color var(--transition);
}
.footer__socials a:hover { background: var(--clr-primary); color: #fff; }
.footer__links h4 { font-size: .85rem; font-weight: 700; color: var(--clr-white); text-transform: uppercase; letter-spacing: 1px; margin-bottom: .75rem; }
.footer__links a { display: block; padding: .25rem 0; font-size: .9rem; color: var(--clr-muted); transition: color var(--transition), padding var(--transition); }
.footer__links a:hover { color: var(--clr-primary); padding-left: .3rem; }
.footer__bottom {
  border-top: 1px solid var(--clr-glass-border);
  padding: 1.25rem 0; font-size: .82rem; color: var(--clr-muted); text-align: center;
}
.footer__bottom i { color: var(--clr-accent); }

/* ---------- Scroll-to-top ---------- */
.totop {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 900;
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: #fff; font-size: 1rem;
  box-shadow: var(--shadow);
  opacity: 0; visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
}
.totop.show { opacity: 1; visibility: visible; transform: translateY(0); }
.totop:hover { transform: translateY(-3px); }

/* ---------- WhatsApp Float ---------- */
.wa-float {
  position: fixed; bottom: 2rem; left: 2rem; z-index: 900;
  width: 54px; height: 54px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #25D366; color: #fff; font-size: 1.6rem;
  box-shadow: 0 4px 16px rgba(37,211,102,.45);
  transition: transform var(--transition), box-shadow var(--transition);
  animation: pulse-wa 2s infinite;
}
.wa-float:hover { transform: scale(1.1); box-shadow: 0 6px 24px rgba(37,211,102,.55); }
@keyframes pulse-wa {
  0%,100%{ box-shadow: 0 4px 16px rgba(37,211,102,.45); }
  50%{ box-shadow: 0 4px 24px rgba(37,211,102,.65), 0 0 0 10px rgba(37,211,102,.1); }
}

/* ---------- Scroll Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1);
}
.reveal--right { transform: translateX(40px); }
.reveal.visible { opacity: 1; transform: translate(0); }

/* ---------- Notification Toast ---------- */
.toast {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(120%);
  z-index: 2000;
  background: var(--clr-primary); color: #fff;
  padding: .85rem 1.75rem; border-radius: 50px;
  font-size: .9rem; font-weight: 600;
  box-shadow: var(--shadow);
  transition: transform .4s cubic-bezier(.4,0,.2,1);
  white-space: nowrap;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* =========================================================
   RESPONSIVE — Tablet (≥640px)
   ========================================================= */
@media (min-width: 640px) {
  .about__grid  { grid-template-columns: 1fr 1fr; }
  .vision__grid { grid-template-columns: 1fr 1fr; }
  .impact__grid { grid-template-columns: repeat(2, 1fr); }
  .programs__grid { grid-template-columns: repeat(2, 1fr); }
  .contact__grid { grid-template-columns: 1fr 1fr; }
  .form__row { grid-template-columns: 1fr 1fr; }
  .footer__inner { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
  .about__stats { grid-template-columns: repeat(4, 1fr); }
  .team__grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}

/* =========================================================
   RESPONSIVE — Desktop (≥1024px)
   ========================================================= */
@media (min-width: 1024px) {
  .impact__grid { grid-template-columns: repeat(4, 1fr); }
  .programs__grid { grid-template-columns: repeat(2, 1fr); }
  .team__grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 2rem; }
  .member img { width: 140px; height: 140px; }
  .contact__form { padding: 2.5rem; }
}

/* =========================================================
   RESPONSIVE — Mobile menu (≤768px)
   ========================================================= */
@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav {
    position: fixed; inset: 0; z-index: 999;
    display: flex; align-items: center; justify-content: center;
    background: rgba(15,14,23,.97);
    backdrop-filter: blur(12px);
    opacity: 0; visibility: hidden;
    transition: opacity .3s, visibility .3s;
  }
  .nav.open { opacity: 1; visibility: visible; }
  .nav__list { flex-direction: column; gap: .75rem; text-align: center; }
  .nav__link { font-size: 1.25rem; padding: .75rem 1.5rem; }
}

/* Small tweaks for very small screens */
@media (max-width: 480px) {
  .hero__title { font-size: 2rem; }
  .section { padding: 4rem 0; }
  .card { padding: 1.5rem 1.15rem; }
  .about__stats { grid-template-columns: repeat(2, 1fr); }
}