/* Shared CSS for Static Pages of Nội Thất Phát Lộc */
:root {
  --bg-color: #F8F7F4;
  --text-color: #141414;
  --text-muted: #606266;
  --text-sub: #8C8E94;
  --accent-cyan: #00D0E8;
  --accent-teal: #00A8BC;
  --dark-bg: #121316;
  --card-bg: #FFFFFF;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-light: rgba(0, 0, 0, 0.04);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .font-heading {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #141414;
}

.font-mono-num {
  font-family: 'JetBrains Mono', monospace;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(248, 247, 244, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -0.02em;
  line-height: 1;
}

.brand-tagline {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-teal);
  margin-top: 4px;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  color: #2A2B2E;
  transition: color 0.2s;
  padding: 4px 0;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-teal);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--accent-teal);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-hotline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: #141414;
  color: #FFFFFF;
  padding: 9px 18px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all 0.2s;
}

.btn-hotline:hover {
  background-color: var(--accent-teal);
  color: #FFFFFF;
}

/* Mobile Menu Button */
.btn-mobile-toggle {
  display: block;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: #141414;
}

@media (min-width: 1024px) {
  .btn-mobile-toggle {
    display: none;
  }
}

.mobile-menu {
  display: none;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-color);
  padding: 16px 20px 24px;
}

.mobile-menu.open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mobile-nav-list a {
  display: block;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-light);
}

/* Breadcrumb */
.breadcrumb-bar {
  background-color: #EFECE6;
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
  font-size: 12px;
  color: var(--text-muted);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.breadcrumb-item a {
  color: var(--text-muted);
  transition: color 0.2s;
}

.breadcrumb-item a:hover {
  color: var(--accent-teal);
}

.breadcrumb-separator {
  color: var(--text-sub);
}

.breadcrumb-item.active {
  color: #141414;
  font-weight: 600;
}

/* Hero Section */
.page-hero {
  padding: 50px 0 35px;
  background: linear-gradient(180deg, rgba(239, 236, 230, 0.4) 0%, rgba(248, 247, 244, 0) 100%);
  border-bottom: 1px solid var(--border-color);
}

.hero-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-teal);
  margin-bottom: 10px;
}

.hero-title {
  font-size: 28px;
  line-height: 1.25;
  margin-bottom: 16px;
  color: #141414;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 40px;
  }
}

.hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 800px;
  line-height: 1.6;
}

/* Main Content Body */
.main-content {
  padding: 40px 0 70px;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

@media (min-width: 992px) {
  .content-grid {
    grid-template-columns: 2fr 1fr;
    align-items: start;
  }
}

.article-body h2 {
  font-size: 22px;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #EFECE6;
}

.article-body h3 {
  font-size: 18px;
  margin: 24px 0 12px;
  color: #2A2B2E;
}

.article-body p {
  margin-bottom: 16px;
  color: #333333;
}

.article-body ul, .article-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
}

/* Cards & Highlights */
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 6px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.02);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 24px 0;
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.step-box {
  display: flex;
  gap: 16px;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: 6px;
  margin-bottom: 16px;
}

.step-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-teal);
  background: rgba(0, 168, 188, 0.1);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 16px;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* CTA Box */
.cta-banner {
  background: #141414;
  color: #FFFFFF;
  padding: 36px 28px;
  border-radius: 8px;
  margin: 36px 0;
  text-align: center;
}

.cta-banner h3 {
  color: #FFFFFF;
  font-size: 22px;
  margin-bottom: 12px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 650px;
  margin: 0 auto 24px;
  font-size: 14px;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.btn-primary-cyan {
  background: var(--accent-cyan);
  color: #141414;
  padding: 12px 24px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all 0.2s;
}

.btn-primary-cyan:hover {
  background: #FFFFFF;
}

.btn-secondary-outline {
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #FFFFFF;
  padding: 12px 24px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all 0.2s;
}

.btn-secondary-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #FFFFFF;
}

/* Sidebar */
.sidebar-box {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 6px;
  margin-bottom: 24px;
}

.sidebar-title {
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.sidebar-links {
  list-style: none;
}

.sidebar-links li {
  margin-bottom: 10px;
}

.sidebar-links a {
  display: block;
  font-size: 13.5px;
  color: #333333;
  padding: 6px 0;
  transition: color 0.2s;
}

.sidebar-links a:hover {
  color: var(--accent-teal);
  font-weight: 600;
}

/* Footer */
.site-footer {
  background: var(--dark-bg);
  color: #FFFFFF;
  padding: 50px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1.5fr 1fr;
  }
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-family: 'Montserrat', sans-serif;
}

.footer-desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

/* Floating Action Buttons for Mobile */
.floating-contact-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  background: #FFFFFF;
  border-top: 1px solid var(--border-color);
  padding: 8px 16px;
  display: flex;
  gap: 12px;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.08);
}

@media (min-width: 768px) {
  .floating-contact-bar {
    display: none;
  }
}

.floating-btn-phone {
  flex: 1;
  background: #141414;
  color: #FFFFFF;
  text-align: center;
  padding: 10px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
}

.floating-btn-zalo {
  flex: 1;
  background: #0088FF;
  color: #FFFFFF;
  text-align: center;
  padding: 10px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
}

/* =====================================================================
   HEADER DROPDOWN & INTERACTIVE HOTLINE MODAL
   ===================================================================== */

/* Navigation Dropdown */
.nav-item-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.nav-item-dropdown .dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}
.dropdown-chevron {
  transition: transform 0.2s ease;
}
.nav-item-dropdown:hover .dropdown-chevron {
  transform: rotate(180deg);
}
.nav-item-dropdown .dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 220px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 6px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  padding: 8px 0;
  display: none;
  z-index: 100;
  animation: fadeInDown 0.15s ease-out;
}
.nav-item-dropdown:hover .dropdown-menu {
  display: block;
}
.dropdown-menu a {
  display: block;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: normal;
  color: #2A2B2E;
  transition: all 0.15s;
}
.dropdown-menu a:hover {
  background: #F4F7F6;
  color: var(--accent-teal);
  padding-left: 22px;
}

/* Mobile Submenu */
.mobile-submenu-group {
  margin: 4px 0;
  padding-left: 8px;
  border-left: 2px solid var(--accent-teal);
}
.mobile-submenu-header {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-teal);
  margin-bottom: 6px;
}
.mobile-submenu-items {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mobile-submenu-items a {
  font-size: 13px;
  color: #505156;
  text-decoration: none;
  display: block;
  padding: 4px 0;
}
.mobile-submenu-items a:hover {
  color: #141414;
}

/* Hotline Modal Overlay */
.hotline-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.hotline-modal-overlay.active {
  display: flex;
}
.hotline-modal-card {
  width: 100%;
  max-width: 380px;
  background: #141416;
  color: #FFFFFF;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  position: relative;
  animation: modalFadeIn 0.2s ease-out;
}
@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.hotline-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 12px;
  margin-bottom: 12px;
}
.hotline-modal-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 13.5px;
  text-transform: uppercase;
  color: #FFFFFF;
}
.hotline-modal-close {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: color 0.15s;
}
.hotline-modal-close:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.1);
}
.hotline-modal-desc {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 14px;
  line-height: 1.5;
}
.hotline-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.hotline-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 10px 14px;
  transition: background 0.15s;
}
.hotline-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(0, 208, 232, 0.3);
}
.hotline-info {
  display: flex;
  flex-direction: column;
}
.hotline-name {
  font-size: 13px;
  font-weight: 600;
  color: #FFFFFF;
}
.hotline-number {
  font-size: 13px;
  color: #00D0E8;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  margin-top: 2px;
}
.btn-call-item {
  background: #00A8BC;
  color: #FFFFFF;
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.15s;
}
.btn-call-item:hover {
  background: #00D0E8;
  color: #000000;
}