/* ============================================================
   Empower Best Solution — shared stylesheet
   Design tokens
   ============================================================ */
:root {
  --ink: #1E3A28;      /* dark green */
  --cream: #F7F2E3;    /* page background */
  --amber: #BE7C3E;    /* accent */
  --amber-hover: #A8692F;
  --body: #4A564C;     /* body text */
  --border: #E4DCC8;
  --white: #FFFFFF;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cream);
  font-family: 'Noto Sans Thai', sans-serif;
  color: var(--body);
}

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--amber); }

img, svg { max-width: 100%; }

button { font-family: inherit; }

/* Container = the old fixed 1440px canvas, now fluid */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  background: var(--cream);
}

.navlink:hover { color: var(--amber) !important; }

.footer-link {
  color: rgba(247, 242, 227, 0.9) !important;
  text-decoration: none;
}
.footer-link:hover {
  color: var(--amber) !important;
  text-decoration: underline;
}
.btn-amber:hover { background: var(--amber-hover) !important; }
.btn-outline:hover { background: var(--ink) !important; color: var(--cream) !important; }

input, select, textarea { font-family: 'Noto Sans Thai', sans-serif; }
input:focus, textarea:focus { outline: 2px solid var(--amber); outline-offset: 1px; }

/* FAQ accordions */
summary::-webkit-details-marker { display: none; }
summary { list-style: none; }
details[open] summary svg { transform: rotate(180deg); }
summary svg { transition: transform 0.15s ease; }

/* ============================================================
   Header / mobile nav toggle (checkbox hack, no JS needed)
   ============================================================ */
.nav-toggle-input { display: none; }

.nav-toggle-label {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  margin: -8px;
}
.nav-toggle-label span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
}

/* ============================================================
   Responsive grids — the mockup used inline "repeat(N, 1fr)"
   grids; on small screens these classes collapse to 1 column.
   ============================================================ */
.grid-2, .grid-3, .grid-4 { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Rows that should stack on mobile */
.stack-row { display: flex; }

/* Netlify form honeypot field */
.hidden-field { position: absolute; left: -9999px; }

/* Reminder-program LINE registration: mobile-only simplified content
   (hidden on desktop, swapped in under the 900px breakpoint below) */
.mobile-line-block { display: none; }
.mobile-line-heading { display: none; }

/* ============================================================
   Mobile breakpoint
   ============================================================ */
@media (max-width: 900px) {
  .site-header { padding: 18px 24px !important; }
  .site-header .brand span:first-child { font-size: 16px !important; }

  .site-nav {
    display: none !important;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 4px !important;
    background: var(--cream);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px 24px;
    z-index: 40;
  }
  .site-nav a { padding: 10px 0; width: 100%; }

  .nav-toggle-input:checked ~ .site-nav { display: flex !important; }
  .nav-toggle-label { display: flex; }

  .header-cta { display: none !important; }

  .container > div { padding-left: 24px !important; padding-right: 24px !important; }

  h1 { font-size: 28px !important; }
  h2 { font-size: 24px !important; }

  .stack-row {
    flex-direction: column !important;
    gap: 32px !important;
  }
  .stack-row > * { max-width: 100% !important; flex: none !important; width: 100% !important; }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr !important;
  }

  .footer-cols {
    flex-direction: column !important;
    gap: 40px !important;
  }
  .footer-cols > div { width: 100% !important; }

  .icon-band { flex-direction: column !important; gap: 20px !important; align-items: flex-start !important; }

  .hero-stats { flex-wrap: wrap; gap: 28px !important; }

  .form-grid { grid-template-columns: 1fr !important; }
  .form-grid > div[style*="span 2"] { grid-column: auto !important; }

  /* Reminder-program LINE registration: LINE-only flow on mobile —
     hide the website/email fallback card and the form entirely, and
     swap the LINE card's copy for the shorter mobile version. */
  #reminder-website-box,
  #reminder-form-row,
  #line-intro-desktop-text,
  #line-step2-block,
  #choose-path-heading { display: none !important; }

  .mobile-line-block { display: flex !important; }
  .mobile-line-heading { display: inline !important; }
  #line-heading-desktop { display: none !important; }
}

@media (max-width: 600px) {
  h1 { font-size: 24px !important; }
  .container > div { padding-left: 18px !important; padding-right: 18px !important; }
}

/* ============================================================
   Sparkle / shine accents — draws the eye to "ไม่มีค่าใช้จ่าย" and
   "ฟรี" specifically (used sparingly; keep it tasteful, not flashy)
   ============================================================ */
.sparkle-mini {
  display: inline-block;
  animation: sparkle-twinkle 1.8s ease-in-out infinite;
}

@keyframes sparkle-twinkle {
  0%, 100% { opacity: 0.25; transform: scale(0.5) rotate(0deg); }
  50% { opacity: 1; transform: scale(1.05) rotate(15deg); }
}

.badge-shine {
  position: relative;
  overflow: hidden;
}

.badge-shine::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 45%;
  height: 100%;
  background: linear-gradient(115deg, transparent, rgba(247, 242, 227, 0.65), transparent);
  transform: skewX(-20deg);
  animation: shine-sweep 3.4s ease-in-out infinite;
}

@keyframes shine-sweep {
  0% { left: -60%; }
  38% { left: 130%; }
  100% { left: 130%; }
}

@media (prefers-reduced-motion: reduce) {
  .sparkle-mini { animation: none; opacity: 0.9; }
  .badge-shine::after { animation: none; display: none; }
}