:root{
  --bg0:#f7fbff;
  --bg1:#eef6ff;
  --text:#0b1b33;
  --muted:#5a6b86;

  --blue-900:#0a2a66;
  --blue-800:#0d3a8a;
  --blue-700:#1557c0;
  --blue-600:#1f6fff;

  --line: rgba(15, 44, 90, .12);
  --shadow2: 0 10px 28px rgba(10, 42, 102, .12);
  --radius: 18px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Noto Sans Thai", "Sarabun", Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(1100px 700px at 15% 10%, rgba(31,111,255,.22), transparent 60%),
    radial-gradient(900px 600px at 90% 25%, rgba(21,87,192,.18), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x:hidden;
}

a{ color:inherit; text-decoration:none; }
.wrap{ max-width:1100px; margin:0 auto; padding: 20px 16px 60px; }

/* ===== TOP NAV BASE ===== */
.topbar{
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(247, 251, 255, .70);
  border-bottom: 1px solid var(--line);
}
.topbar .inner{
  max-width:1100px;
  margin:0 auto;
  padding: 12px 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  letter-spacing:.2px;
}
.logo{
  width:38px; height:38px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-900));
  box-shadow: 0 10px 26px rgba(31,111,255,.22);
  position:relative;
  overflow:hidden;
}
.logo::after{
  content:"";
  position:absolute;
  inset:-40%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent);
  transform: rotate(25deg);
  animation: shine 3.2s linear infinite;
}
@keyframes shine{
  0%{ transform: translateX(-60%) rotate(25deg); }
  100%{ transform: translateX(60%) rotate(25deg); }
}

.brand-text{ display:flex; flex-direction:column; line-height:1.05; }
.brand-name{ font-weight:900; letter-spacing:.2px; }
.brand-sub{ font-size:12px; color: rgba(11,27,51,.55); font-weight:700; margin-top:2px; }

.nav-right{ display:flex; align-items:center; gap:10px; }
.nav-links{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; justify-content:flex-end; }

/* ===== BUTTONS ===== */
.btn{
  border: 1px solid var(--line);
  background: rgba(255,255,255,.75);
  color: var(--blue-900);
  padding: 10px 14px;
  border-radius: 14px;
  font-weight:800;
  display:inline-flex;
  gap:8px;
  align-items:center;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
  box-shadow: 0 10px 20px rgba(10,42,102,.06);
  user-select:none;
}
.btn:hover{ transform: translateY(-1px); box-shadow: 0 16px 28px rgba(10,42,102,.10); }
.btn:active{ transform: translateY(0px) scale(.99); }

.btn.primary{
  border-color: rgba(31,111,255,.35);
  background: linear-gradient(135deg, var(--blue-600), var(--blue-900));
  color:white;
  box-shadow: 0 16px 34px rgba(31,111,255,.22);
}
.btn.primary:hover{ box-shadow: 0 22px 46px rgba(31,111,255,.26); }

/* ===== NAVLINKS (modern) ===== */
.navlink{
  border: 1px solid transparent;
  background: rgba(255,255,255,.35);
  padding: 10px 12px;
  border-radius: 14px;
  font-weight:900;
  color: var(--blue-900);
  box-shadow: 0 10px 18px rgba(10,42,102,.05);
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease, border-color .12s ease;
  display:inline-flex;
  align-items:center;
  gap:8px;
  user-select:none;
}
.navlink:hover{
  transform: translateY(-1px);
  background: rgba(255,255,255,.65);
  border-color: rgba(31,111,255,.20);
  box-shadow: 0 16px 26px rgba(10,42,102,.10);
}
.navlink:active{ transform: translateY(0px) scale(.99); }

.divider{
  width: 1px;
  height: 26px;
  background: var(--line);
  border-radius: 999px;
  margin: 0 2px;
}

/* Dropdown */
.dropdown{ position:relative; }
.dropbtn{ cursor:pointer; }
.caret{ font-size: 12px; opacity:.75; }

.dropmenu{
  position:absolute;
  right:0;
  top: calc(100% + 8px);
  min-width: 220px;
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(15,44,90,.12);
  border-radius: 16px;
  box-shadow: 0 18px 60px rgba(10,42,102,.18);
  padding: 8px;
  display:none;
  backdrop-filter: blur(10px);
}
.dropdown.open .dropmenu{ display:block; }

.dropitem{
  display:flex;
  padding: 10px 10px;
  border-radius: 12px;
  font-weight:900;
  color: var(--blue-900);
  transition: background .12s ease;
}
.dropitem:hover{ background: rgba(31,111,255,.10); }

/* Hamburger (mobile) */
.hamburger{
  display:none;
  width:44px; height:44px;
  border-radius: 14px;
  border: 1px solid rgba(15,44,90,.12);
  background: rgba(255,255,255,.65);
  box-shadow: 0 10px 18px rgba(10,42,102,.06);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  gap:4px;
  padding: 10px;
}
.hamburger span{
  display:block;
  width: 18px;
  height: 2px;
  background: rgba(11,27,51,.75);
  border-radius: 999px;
}
.hamburger:active{ transform: scale(.99); }

/* Mobile drawer */
.mobile-drawer{
  display:none;
  border-top: 1px solid var(--line);
  background: rgba(247, 251, 255, .85);
  backdrop-filter: blur(12px);
}
.mobile-drawer.open{ display:block; }

.mobile-inner{
  max-width:1100px;
  margin:0 auto;
  padding: 10px 16px 14px;
  display:grid;
  gap:8px;
}
.mobile-item{
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(15,44,90,.10);
  background: rgba(255,255,255,.72);
  font-weight:900;
  color: var(--blue-900);
  box-shadow: 0 10px 18px rgba(10,42,102,.06);
}
.mobile-item:active{ transform: scale(.99); }
.mobile-item.subtle{
  background: rgba(255,255,255,.40);
  font-weight:800;
  color: rgba(11,27,51,.70);
}

.mobile-auth{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top: 4px;
}

/* ===== HERO ===== */
.hero{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 18px;
  align-items:stretch;
  margin-top: 18px;
}
.panel{
  background: rgba(255,255,255,.78);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow2);
  overflow:hidden;
}
.hero-left{ padding: 22px; }

.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:900;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(31,111,255,.25);
  background: rgba(31,111,255,.08);
  color: var(--blue-900);
}
h1{
  margin: 14px 0 10px;
  font-size: clamp(26px, 3.2vw, 44px);
  line-height: 1.08;
  letter-spacing:-.6px;
}
.lead{
  margin:0 0 18px;
  color: var(--muted);
  font-size: 15.5px;
  line-height:1.65;
  max-width: 60ch;
}
.cta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

/* Right card */
.hero-right{
  padding: 18px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.mini{
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.72);
  box-shadow: 0 10px 22px rgba(10,42,102,.06);
}
.mini h3{
  margin:0 0 6px;
  font-size: 15px;
  letter-spacing:-.2px;
}
.mini p{
  margin:0;
  color: var(--muted);
  font-size: 13.5px;
  line-height:1.55;
}

/* Feature grid */
.grid{
  margin-top: 18px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.feat{
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.72);
  box-shadow: 0 12px 24px rgba(10,42,102,.07);
  position:relative;
  overflow:hidden;
  min-height: 120px;
}
.feat::before{
  content:"";
  position:absolute;
  width:240px;
  height:240px;
  border-radius:50%;
  background: radial-gradient(circle, rgba(31,111,255,.16), transparent 62%);
  right:-120px;
  top:-120px;
}
.feat b{ display:block; margin-bottom:6px; font-size:14.5px; }
.feat span{ color:var(--muted); font-size:13.5px; line-height:1.55; display:block; }

/* Footer */
.footer{
  margin-top: 20px;
  display:flex;
  justify-content:space-between;
  gap:12px;
  color: rgba(11,27,51,.65);
  font-size: 13px;
  flex-wrap:wrap;
}
.kbd{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.65);
}

/* Responsive */
@media (max-width: 920px){
  .hero{ grid-template-columns: 1fr; }
  .grid{ grid-template-columns: 1fr; }
  .nav-links{ display:none; }
  .hamburger{ display:inline-flex; }
  .btn{ padding: 10px 12px; }
}

/* ===== SweetAlert2 theme ===== */
.swal2-popup{
  border-radius: 18px !important;
  border: 1px solid rgba(15,44,90,.12) !important;
  background: rgba(255,255,255,.92) !important;
  box-shadow: 0 18px 60px rgba(10,42,102,.22) !important;
  backdrop-filter: blur(12px);
}
.swal2-title{ color: var(--blue-900) !important; }
.swal2-html-container{ color: rgba(11,27,51,.78) !important; }
.swal2-confirm{
  border-radius: 14px !important;
  font-weight:900 !important;
  padding: 10px 14px !important;
}
.swal2-styled.swal2-confirm{
  background: linear-gradient(135deg, var(--blue-600), var(--blue-900)) !important;
  box-shadow: 0 16px 34px rgba(31,111,255,.22) !important;
}

/* ===== Font Awesome spacing (neat) ===== */
.navlink i,
.btn i,
.dropitem i,
.mobile-item i {
  margin-right: 6px;
  font-size: 0.95em;
  opacity: .9;
}
.brand-name i {
  margin-right: 6px;
  color: var(--blue-600);
}
.dropitem i { width: 18px; text-align: center; }
.mobile-item i { width: 20px; text-align: center; }

/* ===================================================================== */
/* ===================== ADD: MOBILE BOTTOM NAV ========================= */
/* ===================================================================== */

/* ปรับพื้นที่ด้านล่างให้ไม่โดนแทบล่างทับ (เฉพาะมือถือ) */
@media (max-width: 920px){
  body{ padding-bottom: calc(86px + env(safe-area-inset-bottom)); }

  /* บนมือถือ: ซ่อน topbar + drawer เพื่อใช้ bottom nav แทน */
  .topbar{ display:none; }
  .mobile-drawer{ display:none !important; }
}

/* Bottom nav (โชว์เฉพาะมือถือ) */
.mobile-bottom-nav{
  display:none;
}

@media (max-width: 920px){
  .mobile-bottom-nav{
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;

    height: 66px;
    display: flex;
    align-items: center;
    justify-content: space-around;

    background: rgba(247, 251, 255, .92);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(14px);
    z-index: 9999;

    padding-bottom: env(safe-area-inset-bottom);
  }

  .mnav-item{
    flex: 1;
    text-align: center;
    padding: 10px 0;
    color: rgba(11,27,51,.78);
    font-weight: 900;
    font-size: 11px;
    line-height: 1.1;
    user-select: none;
  }

  .mnav-item i{
    display:block;
    font-size: 18px;
    margin-bottom: 5px;
    opacity: .95;
  }

  .mnav-item:active{
    transform: scale(.99);
  }

  /* ปุ่มกลางวงกลมสีฟ้า */
  .mnav-center-btn{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: -20px;

    width: 58px;
    height: 58px;
    border-radius: 999px;

    background: linear-gradient(135deg, var(--blue-600), var(--blue-900));
    display: grid;
    place-items: center;

    color: #fff;
    text-decoration: none;

    box-shadow: 0 18px 38px rgba(31,111,255,.28);
    border: 3px solid rgba(247, 251, 255, .92);
  }

  .mnav-center-btn i{
    font-size: 20px;
  }

  .mnav-center-btn:active{
    transform: translateX(-50%) scale(.98);
  }
}

/* ===== AUTH FORMS (added) ===== */
.auth-form{ display:flex; flex-direction:column; gap:12px; margin-top:14px; }
.form-row{ display:flex; flex-direction:column; gap:6px; }
.form-row label{ font-weight:800; color: rgba(11,27,51,.70); font-size: 13.5px; }
.form-row input{
  width:100%;
  padding: 11px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.85);
  outline: none;
  font-weight:700;
  color: var(--blue-900);
  box-shadow: 0 6px 18px rgba(11,27,51,.06);
}
.form-row input:focus{
  border-color: rgba(31,111,255,.55);
  box-shadow: 0 10px 26px rgba(31,111,255,.12);
}

/* =========================
   AUTH PAGES (LOGIN / REGISTER)
   ========================= */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px 96px;
  background: linear-gradient(135deg, #eaf2ff, #f7faff);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border-radius: 18px;
  padding: 24px 22px 26px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.auth-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 4px;
  color: #1f2d5a;
}

.auth-subtitle {
  font-size: 0.95rem;
  color: #6b7aa6;
  margin-bottom: 20px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-form label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #2b3a67;
}

.auth-form input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1.5px solid #dbe3ff;
  font-size: 1rem;
  transition: 0.2s;
}

.auth-form input:focus {
  outline: none;
  border-color: #2f6bff;
  box-shadow: 0 0 0 3px rgba(47,107,255,0.15);
}

.auth-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.auth-actions .btn {
  flex: 1;
  height: 44px;
  border-radius: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Mobile */
@media (max-width: 480px) {
  .auth-card {
    padding: 20px 18px 22px;
  }

  .auth-title {
    font-size: 1.4rem;
  }

  .auth-actions {
    flex-direction: column;
  }
}