/* Light theme, responsive nav */
/* thanh nav */
.site-nav { position: sticky; top:0; z-index:1000; background:#fff; border-bottom:1px solid #eee; }
.site-nav .nav-inner { display:flex; align-items:center; gap:16px; padding:10px 16px; }
.site-nav .brand img { display:block; }

/* menu desktop */
.site-nav .menu { display:flex; gap:8px; list-style:none; margin:0; padding:0; }
.site-nav .menu > li { position:relative; }
.site-nav a, .site-nav .nolink { display:inline-flex; align-items:center; padding:8px 12px; border-radius:8px; text-decoration:none; color:#111; }
.site-nav .menu > li.active > a { background:#eef3ff; }

/* dropdown desktop */
.site-nav .menu > li.has-children > a::after {
  content:"▾"; font-size:.72rem; margin-left:.35rem;
}
.site-nav .menu > li .submenu {
  display:none; position:absolute; top:100%; left:0; min-width:220px;
  background:#fff; border:1px solid #eee; border-radius:10px; padding:8px; list-style:none;
}
.site-nav .menu > li:hover > .submenu { display:block; }
.site-nav .menu > li .submenu li a { display:block; padding:8px 10px; border-radius:6px; }
.site-nav .menu > li .submenu li a:hover { background:#f5f7fb; }

/* ẩn nút caret trên desktop */
.site-nav .caret { display:none; }

/* toggle nút menu */
.site-nav .nav-toggle { display:none; border:0; background:transparent; padding:8px; }
.site-nav .nav-toggle span { display:block; width:22px; height:2px; background:#111; margin:5px 0; }

/* overlay khi mở menu mobile */
body.nav-locked {
  overflow: hidden;
}


/* ================= MOBILE NAV ================= */
@media (max-width: 992px) {
  .site-nav .nav-toggle { display:block; }

  /* logo giữa, menu trái, Thoát phải */
  .site-nav .nav-inner {
    position:relative;
    align-items:center;
  }
  .site-nav .brand {
    position:absolute;
    left:50%;
    top:50%;
    transform:translate(-50%, -50%);
  }
  .site-nav .nav-right {
    margin-left:auto;
    z-index:10;
  }

  /* panel menu cấp 1 (cha) */
  .site-nav .menu {
  display:none;
  position:fixed;
  top:56px;
  bottom:0;
  left:0;                     /* panel cha ở vị trí 0 */
  width:280px;
  background:#fff;
  border-right:1px solid #e5e7eb;
  padding:0;
  margin:0;
  flex-direction:column;
  gap:0;
  overflow-y:auto;
  z-index:1000;
  transition:left .18s ease-out;  /* dùng left để trượt, KHÔNG dùng transform */
}
.site-nav.is-open .menu {
  display:flex;
}
.site-nav.sub-open .menu {
  left:-280px;                /* trượt panel cha ra trái */
}

  .site-nav .menu > li {
    display:flex;
    align-items:center;
    border-bottom:1px solid #f1f5f9;
  }
  .site-nav .menu > li:last-child {
    border-bottom:none;
  }

  .site-nav .menu > li > a,
  .site-nav .menu > li > .nolink {
    flex:1;
    padding:12px 16px;
    border-radius:0;
    font-size:.95rem;
  }

  .site-nav .menu > li > a:hover,
  .site-nav .menu > li.active > a {
    background:#f3f4f6;
  }

  /* bỏ dấu ▾ trên mobile, dùng caret riêng */
  .site-nav .menu > li.has-children > a::after { content:""; }

  /* nút caret (mũi tên > bên phải) */
  .site-nav .caret {
    display:flex;
    align-items:center;
    justify-content:center;
    width:36px;
    height:36px;
    margin-right:4px;
    border:0;
    background:transparent;
    flex-shrink:0;
  }
  .site-nav .caret::before {
    content:">";
    font-size:1.1rem;
    color:#9ca3af;
  }

  /* panel submenu (cấp 2) – đè lên vị trí panel cha, panel cha đã trượt ra ngoài */
  .site-nav .menu > li .submenu {
    display:none;           /* override desktop */
    position:fixed;
    top:56px;
    bottom:0;
    left:280px;             /* ban đầu nằm ngoài bên phải */
    width:280px;
    background:#fff;
    border-right:1px solid #e5e7eb;
    padding:0;
    margin:0;
    list-style:none;
    overflow-y:auto;
    z-index:1001;
    box-shadow:-1px 0 4px rgba(15,23,42,.08);
  }
  .site-nav.sub-open .menu > li.open > .submenu {
    display:block;
    left:0;                 /* trượt vào đúng vị trí panel cha */
    animation:submenuSlide .18s ease-out;
  }

  /* header của panel submenu: < LƯU TRÚ */
  .submenu-header {
    display:flex;
    align-items:center;
    gap:8px;
    padding:12px 16px;
    border-bottom:1px solid #f1f5f9;
    font-size:.9rem;
    font-weight:600;
    text-transform:uppercase;
    letter-spacing:.06em;
  }
  .submenu-back {
    border:0;
    background:transparent;
    font-size:1.1rem;
    line-height:1;
    padding:0;
    margin-right:4px;
  }
  .submenu-header-title {
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }

  /* item trong submenu */
  .site-nav .menu > li .submenu li {
    border-bottom:1px solid #f1f5f9;
  }
  .site-nav .menu > li .submenu li:last-child {
    border-bottom:none;
  }
  .site-nav .menu > li .submenu li a {
    display:block;
    padding:12px 16px;
    font-size:.95rem;
    border-radius:0;
  }
  .site-nav .menu > li .submenu li a:hover {
    background:#f3f4f6;
  }
}

/* animation */
@keyframes submenuSlide {
  from { opacity:0; transform:translateX(12px); }
  to   { opacity:1; transform:translateX(0); }
}

/* ===== Flash / toast ===== */
.flash {
  position: fixed;
  top: 64px;              /* giữ nguyên khoảng cách với top, chỉnh nếu muốn thấp hơn/cao hơn */
  left: 50%;              /* căn giữa ngang */
  right: auto;            /* override cấu hình cũ */
  transform: translateX(-50%); /* đẩy lại đúng giữa */
  max-width: 320px;
  padding: 10px 14px;
  border-radius: 999px;
  font-size: .9rem;
  line-height: 1.3;
  box-shadow: 0 10px 25px rgba(15,23,42,.18);
  background: #f3f4f6;
  color: #111827;
  z-index: 1200;
  opacity: 1;
  transition: opacity .25s ease, transform .25s ease;
}

.flash.success { background:#ecfdf3; color:#166534; }
.flash.danger  { background:#fef2f2; color:#b91c1c; }
.flash.info    { background:#eff6ff; color:#1d4ed8; }

.flash.hide {
  opacity: 0;
  transform: translate(-50%, -8px); /* ẩn đi nhưng vẫn căn giữa */
  pointer-events: none;
}
/* =========================
   LOGIN PAGE LAYOUT
   ========================= */

.container--auth {
  max-width: 100%;
  padding: 0;
}

/* Wrapper toàn bộ trang login, full-height, căn giữa */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: radial-gradient(circle at top, #e0f2fe 0, #eef2ff 40%, #f9fafb 100%);
}

/* Card đăng nhập */
.auth-card {
  width: 100%;
  max-width: 420px;
  padding: 28px 20px;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.18);
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-sizing: border-box;
}

@media (min-width: 768px) {
  .auth-card {
    padding: 36px 32px;
    max-width: 440px;
  }
}

/* Logo ở giữa */
.auth-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}

.auth-logo__img {
  height: 64px;
  max-width: 180px;
  object-fit: contain;
}

/* Tiêu đề + mô tả */
.auth-title {
  margin: 0 0 8px;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
  color: #0f172a;
}

.auth-subtitle {
  margin: 0 0 24px;
  text-align: center;
  font-size: 0.875rem;
  color: #64748b;
}

/* Form & fields */
.auth-form {
  margin: 0;
}

.auth-field {
  margin-bottom: 16px;
}

.auth-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  color: #0f172a;
}

.auth-input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  font-size: 0.95rem;
  line-height: 1.4;
  color: #0f172a;
  background-color: #f8fafc;
  box-sizing: border-box;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.auth-input::placeholder {
  color: #94a3b8;
}

.auth-input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.25);
  background-color: #ffffff;
}

/* Button / actions */
.auth-actions {
  margin-top: 8px;
}

.auth-button {
  width: 100%;
  padding: 11px 16px;
  border-radius: 999px;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #ffffff;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.auth-button:hover {
  background: linear-gradient(135deg, #1d4ed8, #1d4ed8);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.35);
}

.auth-button:active {
  transform: translateY(1px);
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.35);
}

/* Link phụ (nếu dùng quên mật khẩu) */
.auth-extra {
  margin-top: 12px;
  text-align: right;
}

.auth-link {
  font-size: 0.85rem;
  color: #2563eb;
  text-decoration: none;
}

.auth-link:hover {
  text-decoration: underline;
}

/* Flash message trên login (nếu có) */
.flash {
  max-width: 480px;
  margin: 0 auto 12px;
  box-sizing: border-box;
}