/* ==============================
   assets/css/styles.css (UPDATED)
   - Adds mobile hamburger menu (proper stacked bars)
   - Mobile nav becomes dropdown
   - Lightbox actually hidden until opened
============================== */

/* ------------------------------
   Brand + base
-------------------------------- */
:root{
  --kah-red:#e31836;
  --kah-blue:#0055a4;
  --kah-green:#00a950;

  --bg:#ffffff;
  --text:#111111;
  --muted:#555555;
  --border: rgba(17,17,17,.12);

  --shadow: 0 18px 40px rgba(0,0,0,.08);
  --radius: 18px;

  --ease: cubic-bezier(.2,.8,.2,1);

  --header-h: 92px;
  --header-h-small: 64px;
}

*{ box-sizing: border-box; }
html, body{ height:100%; }

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  padding-top: var(--header-h);
}
body.is-scrolled{ padding-top: var(--header-h-small); }

img{ max-width:100%; display:block; }

.container{
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

a{ color: inherit; text-decoration: none; }

@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* ------------------------------
   Header / nav (fixed + shrink)
-------------------------------- */
.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;

  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);

  height: var(--header-h);
  display:flex;
  align-items:center;

  transition:
    height 220ms var(--ease),
    box-shadow 220ms var(--ease),
    background 220ms var(--ease);
}

.header-inner{
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;

  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 22px;
  padding: 0;

  position: relative; /* anchor mobile dropdown */
}

.brand{ display:flex; align-items:center; min-width: 0; }

.brand-logo{
  height: auto;
  max-height: 66px;
  width: auto;
  object-fit: contain;
  transition: max-height 220ms var(--ease);
}

/* Desktop nav */
.nav{
  display:flex;
  align-items:center;
  gap: 18px;
}

.nav-link{
  position: relative;
  padding: 10px 6px;
  color: rgba(17,17,17,.82);
  font-weight: 800;
  letter-spacing: .2px;
  transition: color 220ms var(--ease), background 220ms var(--ease);
}
.nav-link:hover{ color: rgba(17,17,17,1); }

.nav-link::after{
  content:"";
  position:absolute;
  left: 6px; right: 6px;
  bottom: 6px;
  height: 2px;
  background: linear-gradient(90deg, var(--kah-red), var(--kah-blue), var(--kah-green));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 260ms var(--ease);
  border-radius: 99px;
}
.nav-link:hover::after{ transform: scaleX(1); }

/* Shrunk state (body.is-scrolled) */
body.is-scrolled .site-header{
  height: var(--header-h-small);
  background: rgba(255,255,255,.96);
  box-shadow: 0 10px 24px rgba(0,0,0,.06);
}
body.is-scrolled .brand-logo{ max-height: 48px; }

/* ------------------------------
   Hamburger (mobile)
-------------------------------- */
.nav-toggle{
  display:none; /* hidden on desktop */
  -webkit-appearance:none;
  appearance:none;

  border: 1px solid var(--border);
  background: rgba(255,255,255,.7);
  border-radius: 14px;
  padding: 10px 12px;
  cursor:pointer;

  /* ✅ stack bars */
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;

  transition: transform 160ms var(--ease), box-shadow 160ms var(--ease), background 160ms var(--ease);
}

.nav-toggle:active{ transform: scale(.99); }
.nav-toggle:focus-visible{
  outline: 3px solid rgba(0,85,164,.25);
  outline-offset: 2px;
}

.nav-toggle-bar{
  display:block;
  width: 22px;
  height: 2px;
  margin: 0; /* ✅ no margins; gap controls spacing */
  background: rgba(17,17,17,.9);
  border-radius: 999px;
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

/* ------------------------------
   Footer
-------------------------------- */
.site-footer{
  border-top: 1px solid var(--border);
  padding: 28px 0;
  margin-top: 64px;
  background: linear-gradient(180deg, rgba(0,85,164,.06), rgba(255,255,255,1));
}

.footer-inner{
  display:flex;
  align-items:flex-start;
  justify-content: space-between;
  gap: 16px;
}
.footer-title{ font-weight: 900; }
.footer-muted{ color: var(--muted); font-size: 14px; margin-top: 4px; }
.footer-right{ display:flex; align-items:center; gap: 10px; color: rgba(17,17,17,.78); }
.footer-link{ font-weight: 800; }
.footer-link:hover{ text-decoration: underline; }
.footer-dot{ opacity:.5; }

/* ------------------------------
   Hero
-------------------------------- */
main{ padding-bottom: 36px; }

.hero{
  padding: 54px 0 22px;
  position: relative;
  overflow: hidden;
}

.hero::before{
  content:"";
  position:absolute;
  inset: 0;
  background-image: url("../img/PXL_20251108_185216411.jpg");
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
  filter: saturate(1.05);
  z-index: 0;
  pointer-events:none;
}

.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.78));
  z-index: 1;
  pointer-events:none;
}

.hero > .container{ position: relative; z-index: 2; }

.hero-grid{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 28px;
  align-items: center;
}
@media (max-width: 860px){
  .hero-grid{ grid-template-columns: 1fr; }
}

h1{
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.05;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}

.lead{
  color: rgba(17,17,17,.78);
  font-size: 18px;
  margin: 0 0 18px;
}

.section{ padding: 34px 0; }

.section-title{
  font-size: 26px;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}

.section-sub{
  margin: 0 0 22px;
  color: rgba(17,17,17,.72);
}

.rule{
  border-top: 1px solid var(--border);
  margin: 26px 0;
}

/* ------------------------------
   Buttons
-------------------------------- */
.hero-actions{
  display:flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 900;
  cursor: pointer;
  transition: transform 160ms var(--ease), box-shadow 160ms var(--ease), filter 160ms var(--ease);
  user-select: none;
}

.btn:focus-visible{
  outline: 3px solid rgba(0,85,164,.25);
  outline-offset: 2px;
}

.btn-cta{
  min-width: 168px;
  font-size: 16px;
  box-shadow: 0 12px 26px rgba(0,0,0,.10);
}

.btn:hover{ transform: translateY(-1px); }
.btn:active{ transform: translateY(0) scale(.99); }

.btn-volunteer{ background: var(--kah-blue); color:#fff; }
.btn-donate{ background: var(--kah-red); color:#fff; }
.btn-green{ background: var(--kah-green); color:#fff; }

.btn-volunteer:hover,
.btn-donate:hover,
.btn-green:hover{ filter: brightness(1.03); }

/* ------------------------------
   Two-col + panels
-------------------------------- */
.two-col{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: stretch;
}
@media (max-width: 900px){
  .two-col{ grid-template-columns: 1fr; }
}

.panel{
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 18px;
  overflow: hidden;

  transform: translateY(0);
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
  will-change: transform;
}

.panel-blue{ background: linear-gradient(180deg, rgba(0,85,164,.10), rgba(255,255,255,.90)); }
.panel-red{ background: linear-gradient(180deg, rgba(227,24,54,.10), rgba(255,255,255,.90)); }
.panel-green{ background: linear-gradient(180deg, rgba(0,169,80,.10), rgba(255,255,255,.90)); }

.panel::before{
  content:"";
  position:absolute;
  inset:-1px;
  opacity: 0;
  transition: opacity 220ms var(--ease);
  pointer-events:none;
  background:
    radial-gradient(
      420px circle at var(--mx, 50%) var(--my, 50%),
      rgba(255,255,255,.55),
      rgba(255,255,255,0) 60%
    );
}

.panel:hover{
  transform: translateY(-3px);
  box-shadow: 0 18px 34px rgba(0,0,0,.10);
}
.panel:hover::before{ opacity: 1; }

.panel::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius: inherit;
  pointer-events:none;
  opacity: 0;
  transition: opacity 220ms var(--ease);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.55);
}
.panel:hover::after{ opacity: 1; }

.bullets{
  margin: 10px 0 0;
  padding-left: 18px;
  color: rgba(17,17,17,.78);
}
.bullets li{ margin: 8px 0; }

/* ------------------------------
   Impact block
-------------------------------- */
.impact{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(0,85,164,.06), rgba(255,255,255,.92));
  padding: 18px;

  cursor: pointer;
  user-select: none;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}
.impact:hover{
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(0,0,0,.10);
}
.impact:active{ transform: translateY(-1px) scale(.995); }

.impact-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  align-items: stretch;
}
@media (max-width: 900px){
  .impact-grid{ grid-template-columns: 1fr; }
}

.stat{
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.92);
  padding: 16px;
}

.stat-number{
  font-size: 34px;
  font-weight: 1000;
  letter-spacing: -0.02em;
  margin: 0;
}
.stat-label{
  margin: 4px 0 0;
  color: rgba(17,17,17,.72);
  font-weight: 800;
}

.small-note{
  margin-top: 12px;
  color: rgba(17,17,17,.72);
  font-size: 14px;
}

/* =========================
   LIGHTBOX (actually hidden)
========================= */
.lightbox{
  position: fixed;
  inset: 0;
  z-index: 9999;

  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  transition: opacity 180ms var(--ease);
}

.lightbox.is-open{
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.lightbox-backdrop{
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.78);
}

.lightbox-dialog{
  position: relative;
  width: min(1100px, calc(100% - 36px));
  margin: 0 auto;
  height: 100%;
  display:flex;
  align-items:center;
  justify-content:center;
}

.lightbox-img{
  width: 100%;
  height: min(78vh, 760px);
  object-fit: contain;
  display:block;
  background: rgba(0,0,0,.35);
  border-radius: 18px;
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
}

.lightbox-meta{
  position: absolute;
  bottom: 24px;
  left: 24px;
  color: rgba(255,255,255,.92);
  font-weight: 900;
  background: rgba(0,0,0,.35);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 12px;
  padding: 8px 10px;
}

.lightbox-close-x{
  position: absolute;
  top: 18px;
  right: 18px;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(0,0,0,.35);
  color: rgba(255,255,255,.92);
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 900;
  cursor: pointer;
}

.lightbox-arrow{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(0,0,0,.35);
  color: rgba(255,255,255,.92);
  border-radius: 14px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  font-size: 28px;
  line-height: 40px;
  text-align: center;
  font-weight: 900;
}
.lightbox-arrow.left{ left: 14px; }
.lightbox-arrow.right{ right: 14px; }

@media (max-width: 640px){
  .lightbox-arrow{ width: 40px; height: 40px; font-size: 24px; line-height: 36px; }
  .lightbox-meta{ left: 14px; bottom: 14px; }
  .lightbox-close-x{ top: 14px; right: 14px; }
}

/* ==============================
   Contact form (Formspree)
============================== */

.contact-form{
  margin-top: 14px;
}

.form-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 640px){
  .form-grid{ grid-template-columns: 1fr; }
}

.field{
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}

.field label{
  font-weight: 900;
  color: rgba(17,17,17,.82);
  font-size: 14px;
}

.field input,
.field textarea{
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 12px;
  font: inherit;
  background: rgba(255,255,255,.92);
  color: var(--text);
  outline: none;
  transition: box-shadow 160ms var(--ease), border-color 160ms var(--ease);
}

.field textarea{
  resize: vertical;
  min-height: 140px;
}

.field input:focus,
.field textarea:focus{
  border-color: rgba(0,85,164,.35);
  box-shadow: 0 0 0 4px rgba(0,85,164,.12);
}

.form-actions{
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Honeypot field (hidden) */
.hp-field{
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

/* ------------------------------
   Reveal animations
-------------------------------- */
[data-reveal]{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
  will-change: transform, opacity;
}
[data-reveal].is-visible{
  opacity: 1;
  transform: translateY(0);
}

.hero [data-hero]{
  opacity: 0;
  transform: translateY(12px);
}
body.is-loaded .hero [data-hero]{
  opacity: 1;
  transform: translateY(0);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
body.is-loaded .hero [data-hero="1"]{ transition-delay: 80ms; }
body.is-loaded .hero [data-hero="2"]{ transition-delay: 160ms; }
body.is-loaded .hero [data-hero="3"]{ transition-delay: 240ms; }
body.is-loaded .hero [data-hero="4"]{ transition-delay: 320ms; }

/* ======================================================
   MOBILE
====================================================== */
@media (max-width: 900px){
  .container,
  .header-inner{
    width: min(1120px, calc(100% - 28px));
  }

  .section{ padding: 28px 0; }
  .section-title{ font-size: 24px; }
  .lead{ font-size: 17px; }
  .btn-cta{ min-width: 0; }
}

@media (max-width: 640px){
  :root{
    --header-h: 86px;
    --header-h-small: 62px;
  }

  body{ padding-top: var(--header-h); }
  body.is-scrolled{ padding-top: var(--header-h-small); }

  .hero{ padding: 34px 0 16px; }
  h1{ font-size: clamp(28px, 7vw, 40px); }
  .lead{ font-size: 16px; }

  .header-inner{ gap: 12px; }
  .brand-logo{ max-height: 52px; }
  body.is-scrolled .brand-logo{ max-height: 44px; }

  /* ✅ show hamburger on mobile */
  .nav-toggle{ display:flex; }

  /* ✅ hide nav by default on mobile */
  .nav{ display:none; }

  /* ✅ dropdown when open */
  body.nav-open .nav{
    display:flex;
    flex-direction: column;
    gap: 6px;

    position: absolute;
    right: 0;
    top: calc(100% + 10px);

    width: min(240px, calc(100vw - 28px));
    padding: 10px;
    border-radius: 16px;

    border: 1px solid var(--border);
    background: rgba(255,255,255,.96);
    box-shadow: 0 18px 34px rgba(0,0,0,.10);
    backdrop-filter: blur(10px);
    z-index: 1001;
  }

  body.nav-open .nav-link{
    padding: 10px 10px;
    border-radius: 12px;
  }
  body.nav-open .nav-link:hover{
    background: rgba(0,85,164,.06);
  }

  /* Optional: animate hamburger into X */
  body.nav-open .nav-toggle-bar:nth-child(1){
    transform: translateY(7px) rotate(45deg);
  }
  body.nav-open .nav-toggle-bar:nth-child(2){
    opacity: 0;
  }
  body.nav-open .nav-toggle-bar:nth-child(3){
    transform: translateY(-7px) rotate(-45deg);
  }

  /* CTAs full width */
  .hero-actions{ gap: 10px; }
  .btn-cta{
    width: 100%;
    justify-content: center;
  }

  .panel{ padding: 16px; }
  .impact{ padding: 16px; }
  .stat-number{ font-size: 30px; }

  .footer-inner{
    flex-direction: column;
    gap: 10px;
  }
  .footer-right{
    flex-wrap: wrap;
    gap: 8px;
  }
}

@media (max-width: 420px){
  .container,
  .header-inner{
    width: min(1120px, calc(100% - 22px));
  }

  .nav-link{ font-size: 13px; }
  .btn{ padding: 13px 14px; }
  .panel{ padding: 14px; }
  .stat{ padding: 14px; }
  .stat-number{ font-size: 28px; }
}