/* ================================================================
   RUMDIGI v2 — Layout (Header, Footer, Grid, Sections)
   ================================================================ */

/* === HEADER === */
#rd-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  /* Height includes safe-area for notch phones */
  height: calc(var(--rd-header-h) + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  z-index: var(--rd-z-header);
  /* Always semi-transparent so visible on all page types */
  background: rgba(7, 15, 26, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(86,186,220,0.08);
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s, border-color 0.3s;
}
#rd-header.scrolled {
  background: rgba(7, 15, 26, 0.92);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border-bottom: 1px solid var(--rd-glass-border);
  box-shadow: var(--rd-shadow-lg);
}
#rd-header .rd-container {
  height: 100%;
}
.rd-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.rd-logo {
  display: flex;
  align-items: center;
  gap: var(--rd-space-3);
  text-decoration: none;
  flex-shrink: 0;
}
.rd-logo img { height: 40px; width: auto; }
.rd-logo-text {
  font-size: var(--rd-text-xl);
  font-weight: var(--rd-fw-bold);
  letter-spacing: -0.03em;
  background: var(--rd-grad-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Nav desktop */
.rd-nav {
  display: flex;
  align-items: center;
  gap: var(--rd-space-1);
}
.rd-nav-item { position: relative; }
.rd-nav-link {
  display: flex;
  align-items: center;
  gap: var(--rd-space-1);
  padding: var(--rd-space-2) var(--rd-space-3);
  font-size: var(--rd-text-sm);
  font-weight: var(--rd-fw-medium);
  color: var(--rd-text-2);
  border-radius: var(--rd-radius-md);
  transition: var(--rd-trans-fast);
  white-space: nowrap;
}
.rd-nav-link:hover, .rd-nav-link.active { color: var(--rd-text); background: rgba(86,186,220,0.08); }
.rd-nav-link.active { color: var(--rd-primary-light); }
.rd-nav-link svg { width: 14px; height: 14px; transition: transform 0.2s; }
.rd-nav-item:hover .rd-nav-link svg { transform: rotate(180deg); }

/* Dropdown */
.rd-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 280px;
  background: var(--rd-glass-bg);
  backdrop-filter: var(--rd-glass-blur);
  -webkit-backdrop-filter: var(--rd-glass-blur);
  border: 1px solid var(--rd-glass-border);
  border-radius: var(--rd-radius-lg);
  box-shadow: var(--rd-shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  padding: var(--rd-space-2);
  z-index: var(--rd-z-overlay);
}
.rd-nav-item:hover .rd-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.rd-dropdown-link {
  display: flex;
  align-items: center;
  gap: var(--rd-space-3);
  padding: var(--rd-space-3) var(--rd-space-4);
  font-size: var(--rd-text-sm);
  color: var(--rd-text-2);
  border-radius: var(--rd-radius-md);
  transition: var(--rd-trans-fast);
}
.rd-dropdown-link:hover { background: rgba(86,186,220,0.1); color: var(--rd-primary-light); }
.rd-dropdown-link .dd-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--rd-radius-sm);
  background: rgba(42,111,151,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
  color: var(--rd-primary-light);
  overflow: hidden;
}
.dd-product-thumb {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.dd-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.dd-name { font-size: 13px; color: var(--rd-text); font-weight: 600; line-height: 1.3; }
.dd-desc { font-size: 11px; color: var(--rd-text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 200px; }
.rd-dropdown-footer {
  padding: 8px 12px;
  border-top: 1px solid var(--rd-border);
  margin-top: 4px;
}
.rd-dropdown-all {
  font-size: 12px;
  color: var(--rd-primary-light);
  display: flex;
  align-items: center;
  gap: 5px;
  transition: var(--rd-trans-fast);
}
.rd-dropdown-all:hover { gap: 8px; }

/* Nav CTA */
.rd-header-actions { display: flex; align-items: center; gap: var(--rd-space-3); }
.rd-btn-zalo {
  display: inline-flex;
  align-items: center;
  gap: var(--rd-space-2);
  padding: var(--rd-space-2) var(--rd-space-4);
  font-size: var(--rd-text-sm);
  font-weight: var(--rd-fw-semi);
  color: var(--rd-accent);
  border: 1px solid var(--rd-border-accent);
  border-radius: var(--rd-radius-md);
  transition: var(--rd-trans-fast);
}
.rd-btn-zalo:hover { background: rgba(232,101,26,0.1); }

/* Hamburger */
.rd-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--rd-space-2);
  cursor: pointer;
  border-radius: var(--rd-radius-md);
  transition: var(--rd-trans-fast);
}
.rd-hamburger:hover { background: rgba(86,186,220,0.08); }
.rd-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--rd-text);
  border-radius: 2px;
  transition: var(--rd-trans-base);
  transform-origin: center;
}
.rd-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.rd-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.rd-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* === MOBILE MENU === */
#rd-mobile-menu {
  position: fixed;
  inset: 0;
  z-index: calc(var(--rd-z-header) - 1);
  background: var(--rd-bg);
  padding: calc(var(--rd-header-h) + var(--rd-space-6)) var(--rd-space-6) var(--rd-space-6);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  overflow-y: auto;
}
#rd-mobile-menu.open { transform: translateX(0); }
.rd-mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--rd-space-4) 0;
  font-size: var(--rd-text-lg);
  font-weight: var(--rd-fw-medium);
  color: var(--rd-text-2);
  border-bottom: 1px solid var(--rd-border);
  transition: var(--rd-trans-fast);
}
.rd-mobile-nav-link:hover { color: var(--rd-primary-light); }
.rd-mobile-submenu { display: none; padding: var(--rd-space-3) 0; }
.rd-mobile-submenu.open { display: block; }
.rd-mobile-submenu-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: var(--rd-space-3) var(--rd-space-4);
  font-size: var(--rd-text-base);
  color: var(--rd-text-3);
  border-radius: var(--rd-radius-md);
  transition: var(--rd-trans-fast);
}
.rd-mobile-submenu-link:hover { color: var(--rd-primary-light); background: rgba(86,186,220,0.06); }
.rd-mobile-product-thumb {
  width: 22px; height: 22px; border-radius: 5px;
  object-fit: cover; display: block; flex-shrink: 0;
}
.rd-mobile-all-products {
  color: var(--rd-primary-light);
  border-top: 1px solid var(--rd-border);
  margin-top: 4px; padding-top: 10px;
  font-weight: 500;
}
.rd-mobile-actions { margin-top: var(--rd-space-6); display: flex; flex-direction: column; gap: var(--rd-space-3); }

/* === BODY OFFSET === */
body { padding-top: calc(var(--rd-header-h) + env(safe-area-inset-top, 0px)); }
body.has-hero { padding-top: 0; }

/* === MAIN CONTENT === */
#rd-main { min-height: 60vh; }

/* === FOOTER === */
#rd-footer {
  background: var(--rd-bg-2);
  border-top: 1px solid var(--rd-border);
  padding: var(--rd-space-16) 0 0;
}
.rd-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.2fr;
  gap: var(--rd-space-10);
  padding-bottom: var(--rd-space-12);
  border-bottom: 1px solid var(--rd-border);
}
.rd-footer-brand .rd-logo { margin-bottom: var(--rd-space-4); }
.rd-footer-brand p { font-size: var(--rd-text-sm); color: var(--rd-text-3); line-height: var(--rd-lh-loose); }
.rd-footer-social { display: flex; gap: var(--rd-space-3); margin-top: var(--rd-space-5); }
.rd-social-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--rd-radius-md);
  border: 1px solid var(--rd-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--rd-text-3);
  font-size: 14px;
  transition: var(--rd-trans-fast);
}
.rd-social-btn:hover { border-color: var(--rd-primary); color: var(--rd-primary-light); background: rgba(42,111,151,0.1); }

.rd-footer-col h4 {
  font-size: var(--rd-text-sm);
  font-weight: var(--rd-fw-semi);
  color: var(--rd-text);
  margin-bottom: var(--rd-space-5);
  padding-bottom: var(--rd-space-3);
  border-bottom: 1px solid var(--rd-border);
}
.rd-footer-links { list-style: none; display: flex; flex-direction: column; gap: var(--rd-space-3); }
.rd-footer-links li a {
  font-size: var(--rd-text-sm);
  color: var(--rd-text-3);
  transition: var(--rd-trans-fast);
  display: flex;
  align-items: center;
  gap: var(--rd-space-2);
}
.rd-footer-links li a:hover { color: var(--rd-primary-light); padding-left: var(--rd-space-1); }

/* Newsletter */
.rd-newsletter-form { display: flex; gap: var(--rd-space-2); margin-top: var(--rd-space-2); }
.rd-newsletter-form input {
  flex: 1;
  padding: var(--rd-space-3) var(--rd-space-4);
  background: var(--rd-bg-card);
  border: 1px solid var(--rd-border);
  border-radius: var(--rd-radius-md);
  color: var(--rd-text);
  font-size: var(--rd-text-sm);
  transition: var(--rd-trans-fast);
}
.rd-newsletter-form input:focus { outline: none; border-color: var(--rd-primary); }
.rd-newsletter-form input::placeholder { color: var(--rd-text-3); }
.rd-newsletter-form button {
  padding: var(--rd-space-3);
  background: var(--rd-grad-blue);
  border-radius: var(--rd-radius-md);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--rd-trans-fast);
  flex-shrink: 0;
}
.rd-newsletter-form button:hover { opacity: 0.85; transform: scale(1.05); }

/* Footer bottom */
.rd-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--rd-space-5) 0;
  font-size: var(--rd-text-sm);
  color: var(--rd-text-3);
  flex-wrap: wrap;
  gap: var(--rd-space-4);
}
.rd-footer-bottom-links { display: flex; gap: var(--rd-space-5); }
.rd-footer-bottom-links a { color: var(--rd-text-3); transition: var(--rd-trans-fast); }
.rd-footer-bottom-links a:hover { color: var(--rd-primary-light); }

/* === GRID LAYOUTS === */
.rd-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--rd-space-8); }
.rd-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--rd-space-6); }
.rd-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--rd-space-6); }
.rd-grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--rd-space-6); }

/* Two column with sidebar */
.rd-layout-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--rd-space-10);
  align-items: start;
}

/* === SIDEBAR === */
.rd-sidebar { position: sticky; top: calc(var(--rd-header-h) + var(--rd-space-6)); }
.rd-widget {
  background: var(--rd-bg-card);
  border: 1px solid var(--rd-border);
  border-radius: var(--rd-radius-lg);
  padding: var(--rd-space-6);
  margin-bottom: var(--rd-space-5);
}
.rd-widget-title {
  font-size: var(--rd-text-sm);
  font-weight: var(--rd-fw-semi);
  color: var(--rd-text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-bottom: var(--rd-space-3);
  border-bottom: 1px solid var(--rd-border);
  margin-bottom: var(--rd-space-4);
}

/* =====================================================
   WordPress Default Widget Overrides (dynamic_sidebar)
   ===================================================== */

/* Widget container — match .rd-widget styling */
.rd-sidebar .widget {
  background: var(--rd-bg-card);
  border: 1px solid var(--rd-border);
  border-radius: var(--rd-radius-lg);
  padding: var(--rd-space-6);
  margin-bottom: var(--rd-space-5);
  overflow: hidden;
}

/* Widget titles — WP block widgets might just use h2/h3 without class */
.rd-sidebar .widget-title,
.rd-sidebar .widget h2,
.rd-sidebar .widget h3 {
  font-size: var(--rd-text-sm) !important;
  font-weight: var(--rd-fw-semi) !important;
  color: var(--rd-text) !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-bottom: var(--rd-space-3);
  border-bottom: 1px solid var(--rd-border);
  margin-bottom: var(--rd-space-4);
  margin-top: 0;
  line-height: 1.4;
}

/* Search widget input */
.rd-sidebar .widget input[type="search"],
.rd-sidebar .widget input[type="text"],
.rd-sidebar .wp-block-search__input {
  width: 100%;
  padding: var(--rd-space-3) var(--rd-space-4);
  background: var(--rd-bg-2) !important;
  border: 1px solid var(--rd-border) !important;
  border-radius: var(--rd-radius-md);
  color: var(--rd-text) !important;
  font-size: var(--rd-text-sm);
  font-family: var(--rd-font);
  box-shadow: none !important;
  outline: none;
  transition: border-color 0.2s;
}
.rd-sidebar .widget input[type="search"]:focus,
.rd-sidebar .widget input[type="text"]:focus {
  border-color: var(--rd-primary) !important;
  background: var(--rd-bg-card) !important;
}
.rd-sidebar .widget input::placeholder { color: var(--rd-text-3); }

/* Search submit button */
.rd-sidebar .widget button[type="submit"],
.rd-sidebar .widget input[type="submit"],
.rd-sidebar .wp-block-search__button {
  margin-top: var(--rd-space-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--rd-space-2) var(--rd-space-4);
  background: var(--rd-grad-blue) !important;
  color: white !important;
  border: none !important;
  border-radius: var(--rd-radius-md);
  font-size: var(--rd-text-sm);
  font-family: var(--rd-font);
  font-weight: var(--rd-fw-semi);
  cursor: pointer;
  width: 100%;
  transition: opacity 0.2s;
}
.rd-sidebar .widget button[type="submit"]:hover,
.rd-sidebar .widget input[type="submit"]:hover {
  opacity: 0.85;
}

/* Widget UL lists (Recent Posts, Recent Comments) */
.rd-sidebar .widget ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--rd-space-2);
}
.rd-sidebar .widget ul li {
  padding: var(--rd-space-2) 0;
  border-bottom: 1px solid var(--rd-border);
  font-size: var(--rd-text-sm);
}
.rd-sidebar .widget ul li:last-child { border-bottom: none; }
.rd-sidebar .widget ul li a {
  color: var(--rd-text-2);
  transition: var(--rd-trans-fast);
  display: flex;
  align-items: center;
  gap: var(--rd-space-2);
  line-height: 1.4;
}
.rd-sidebar .widget ul li a::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--rd-primary);
  flex-shrink: 0;
}
.rd-sidebar .widget ul li a:hover { color: var(--rd-primary-light); }

/* Recent Comments tweak */
.rd-sidebar .widget_recent_comments li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.rd-sidebar .widget_recent_comments .comment-author-link a { color: var(--rd-accent); }
.rd-sidebar .widget_recent_comments .comment-author-link a::before { display: none; }