/* ============================================================
   VISIONARY MINDS — RESPONSIVE STYLESHEET
   Breakpoints:
     Desktop  : > 1024px  (default, style.css)
     Tablet   : ≤ 1024px
     Mobile   : ≤ 768px
     Small    : ≤ 480px
     XSmall   : ≤ 360px
   ============================================================ */


/* ── GLOBAL MOBILE SAFETY ─────────────────────────────────── */
html, body {
  overflow-x: hidden;
}

/* Minimum touch target size (WCAG 2.5.5) */
a, button, [role="button"], input[type="submit"],
input[type="button"], label[for], select {
  touch-action: manipulation;
}

img {
  max-width: 100%;
  height: auto;
}


/* ── HEADER SQUEEZE (desktop nav between 769px and 1200px) ─── */
/* Step the header down as space runs out so Donate always stays on screen. */
@media (max-width: 1200px) {
  .nav-inner { gap: 1rem; }
  .nav-link { padding: 0.5rem 0.6rem; }
  .nav-link::after { left: 0.6rem; right: 0.6rem; }
  .logo-wordmark__sub { display: none; }
  .nav-donate { margin-left: -0.375rem; }
}
@media (max-width: 1080px) {
  .nav-cta { display: none; }
  .nav-donate { margin-left: 0; }
}
@media (min-width: 769px) and (max-width: 960px) {
  .logo-wordmark { display: none; }
}


/* ── TABLET (≤ 1024px) ────────────────────────────────────── */
@media (max-width: 1024px) {

  :root {
    --section-py: 4rem;
  }

  /* About split: stack vertically */
  .about-split {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .about-split-img { max-width: 560px; margin: 0 auto; width: 100%; }

  /* Impact & leaders: 2 columns on tablet */
  .impact-grid   { grid-template-columns: repeat(2, 1fr); }
  .leaders-grid  { grid-template-columns: repeat(2, 1fr); }

  /* Stats: 2 columns */
  .stats-band-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }

  /* Values: 2 columns */
  .values-grid { grid-template-columns: repeat(2, 1fr); }

  /* Programs grid: 2 columns */
  .program-grid { grid-template-columns: repeat(2, 1fr); }

  /* Program detail: stack */
  .prog-detail {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .prog-detail--alt .prog-detail-img,
  .prog-detail--alt .prog-detail-content { order: unset; }

  /* Contact: stack */
  .contact-layout { grid-template-columns: 1fr; gap: 3rem; }

  /* Footer: 2 columns */
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }

  /* Lightbox nav arrows — bring inside */
  .lightbox-prev { left: -2rem; }
  .lightbox-next { right: -2rem; }
}


/* ── MOBILE (≤ 768px) ─────────────────────────────────────── */
@media (max-width: 768px) {

  :root {
    --section-py: 3.5rem;
    --px: 1.25rem;
  }

  /* ── Navigation ── */
  /* 44×44 tap target for the hamburger (bars stay the same size) */
  .nav-toggle {
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 44px;
    min-height: 44px;
  }
  .nav-cta    { display: none; }
  /* Donate stays visible on phones as a compact button beside the menu toggle */
  .nav-inner { gap: 0.5rem; }
  .nav-donate {
    margin-left: auto;
    padding: 0.5rem 0.875rem;
    font-size: 0.875rem;
  }

  /* Shrink logo on mobile */
  .nav-logo-img { height: 48px; }
  .logo-wordmark__sub { display: none; }
  .logo-wordmark__name { font-size: 1rem; }

  .nav-menu {
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 1rem 1.5rem 2rem;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 850;
    box-shadow: var(--shadow-xl);
  }

  .nav-menu.open { transform: translateX(0); }

  .nav-link {
    font-size: 1.0625rem;
    padding: 0.875rem 0;
    border-radius: 0;
    border-bottom: 1px solid var(--border);
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .nav-link::after { display: none; }
  .nav-menu li:last-child .nav-link { border-bottom: none; }

  /* ── Hero ── */
  /* padding-block only: keep the container's side gutters */
  .hero-content { padding-block: 1.5rem; }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    min-height: 48px;
  }
  .hero-stats  { display: none; }
  .hero-scroll { display: none; }

  /* ── Grids: all single column ── */
  .impact-grid,
  .program-grid,
  .leaders-grid { grid-template-columns: 1fr; }

  /* ── About ── */
  .about-stats { grid-template-columns: 1fr 1fr; }

  /* ── Mission / Vision ── */
  .mv-grid { grid-template-columns: 1fr; }

  /* ── Values: 2 cols ── */
  .values-grid { grid-template-columns: 1fr 1fr; }

  /* ── Gallery ── */
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 180px;
  }
  .gal-item:nth-child(1) { grid-row: span 1; }
  .gal-item:nth-child(6) { grid-column: span 1; }

  .gallery-preview-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: repeat(2, 170px);
  }

  /* ── Stats band: 2 cols ── */
  .stats-band-grid { grid-template-columns: repeat(2, 1fr); }

  /* ── CTA actions: stack ── */
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; max-width: 320px; min-height: 48px; }

  /* ── Footer: single column ── */
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 0.5rem; }
  .footer-bottom-links { justify-content: center; }
  .footer-bottom-links a { display: inline-block; padding-block: 0.625rem; }
  .footer-social-a { width: 44px; height: 44px; }

  /* ── Form row: single column ── */
  .form-row { grid-template-columns: 1fr; }

  /* Larger form controls for touch */
  .form-control {
    padding: 0.875rem 1rem;
    font-size: 1rem;
    min-height: 48px;
  }
  textarea.form-control { min-height: 120px; }

  /* ── Buttons: ensure tap-friendly height ── */
  .btn { min-height: 44px; }

  /* ── Back to top ── */
  #back-to-top { bottom: 1.25rem; right: 1.25rem; }

  /* ── Lightbox arrows: hide on mobile (use swipe) ── */
  .lightbox-prev,
  .lightbox-next { display: none; }

  /* ── Contact form section ── */
  .contact-form-section { margin-top: 2rem; }
}


/* ── SMALL MOBILE (≤ 480px) ──────────────────────────────── */
@media (max-width: 480px) {

  :root {
    --section-py: 3rem;
    --px: 1rem;
  }

  /* Typography scale-down */
  h1 { font-size: 1.875rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.125rem; }

  /* Tighten hero */
  .hero-eyebrow { font-size: 0.6875rem; letter-spacing: 0.1em; }
  .hero-title   { font-size: 1.875rem; }
  .hero-desc    { font-size: 1rem; }

  /* Values: single column */
  .values-grid { grid-template-columns: 1fr; }

  /* About stats: single column */
  .about-stats { grid-template-columns: 1fr; }

  /* Stats band: single column */
  .stats-band-grid { grid-template-columns: 1fr; gap: 1rem; }
  .stat-num { font-size: 2.25rem; }

  /* Gallery: single column */
  .gallery-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: 200px;
  }
  .gal-item:nth-child(6) { grid-column: span 1; }

  .gallery-preview-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, 180px);
  }

  /* Contact form */
  .form-wrap { padding: 1.25rem; }

  /* Impact, program, leader cards */
  .impact-card,
  .prog-card,
  .leader-card { margin: 0; }

  /* Page hero */
  .page-hero { padding-top: calc(var(--nav-h) + 3rem); padding-bottom: 3rem; }

  /* Footer bottom */
  .footer-bottom-links { flex-direction: column; align-items: center; gap: 0.5rem; }

  /* Nav logo: minimal */
  .nav-logo-img { height: 40px; }
  .nav-logo { gap: 0.5rem; }

  /* Compact Donate: text only so logo, Donate and ☰ share one row */
  .nav-donate { padding: 0.5rem 0.75rem; font-size: 0.8125rem; }
  .nav-donate svg { display: none; }
}


/* ── XSMALL (≤ 360px) ─────────────────────────────────────── */
@media (max-width: 360px) {

  :root { --px: 0.875rem; }

  .hero-title { font-size: 1.625rem; }
  .nav-logo-img { height: 36px; }
  .logo-wordmark__name { font-size: 0.9rem; }
}

/* ── TINY (≤ 340px, e.g. iPhone SE 1st gen) ───────────────── */
@media (max-width: 340px) {
  .nav-logo-img { height: 30px; }
  .logo-wordmark__name { font-size: 0.78rem; letter-spacing: 0.02em; }
  .nav-donate { padding: 0.5rem 0.6rem; }
  .nav-toggle { min-width: 40px; padding: 4px; }

  .btn-lg { padding: 0.875rem 1.5rem; font-size: 0.9375rem; }
}


/* ── REDUCED MOTION ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  [data-fade] { opacity: 1 !important; transform: none !important; }
}


/* ── HIGH CONTRAST MODE ───────────────────────────────────── */
@media (forced-colors: active) {
  .btn { border: 2px solid ButtonText; }
  .nav-link::after { background: Highlight; }
  .impact-card, .prog-card, .leader-card { border: 1px solid ButtonText; }
}