/**
 * main.css – ChuyennhuongEcopark Design System
 * Complete design tokens, reset, layout, components & responsive rules.
 * Version: 0.2.0
 */

/* ==========================================================================
   A. CSS Custom Properties (:root)
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  /* ---- Brand Colors ---- */
  --color-primary:        #1e541a;
  --color-primary-hover:  #246b1f;
  --color-primary-dark:   #143d12;
  --color-primary-50:     #f0f7ef;
  --color-primary-100:    #d4ead2;

  /* ---- Ink & Neutral ---- */
  --color-ink:            #1a1a2e;
  --color-ink-light:      #4a4a5a;
  --color-muted:          #6b7280;
  --color-border:         #e5e7eb;
  --color-surface:        #f8f9fa;
  --color-white:          #ffffff;

  /* ---- Accent & Semantic ---- */
  --color-accent:         #c79a3b;
  --color-accent-light:   #fdf6e3;
  --color-success:        #22c55e;
  --color-warning:        #f59e0b;
  --color-error:          #ef4444;

  /* ---- Typography ---- */
  --font-family:          'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs:         0.75rem;   /* 12px */
  --font-size-sm:         0.875rem;  /* 14px */
  --font-size-base:       1rem;      /* 16px */
  --font-size-lg:         1.125rem;  /* 18px */
  --font-size-xl:         1.25rem;   /* 20px */
  --font-size-2xl:        1.5rem;    /* 24px */
  --font-size-3xl:        2rem;      /* 32px */

  /* ---- Spacing Scale ---- */
  --space-1:  0.25rem;   /* 4px  */
  --space-2:  0.5rem;    /* 8px  */
  --space-3:  0.75rem;   /* 12px */
  --space-4:  1rem;      /* 16px */
  --space-5:  1.25rem;   /* 20px */
  --space-6:  1.5rem;    /* 24px */
  --space-8:  2rem;      /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */

  /* ---- Layout ---- */
  --container-max:             1200px;
  --container-padding-desktop: 24px;
  --container-padding-tablet:  20px;
  --container-padding-mobile:  16px;
  --header-height:             80px;
  --header-height-mobile:      64px;

  /* ---- Radius ---- */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-full: 9999px;

  /* ---- Shadows ---- */
  --shadow-sm:  0 1px  2px  rgba(0, 0, 0, 0.05);
  --shadow-md:  0 4px  6px  rgba(0, 0, 0, 0.07);
  --shadow-lg:  0 10px 15px rgba(0, 0, 0, 0.10);
  --shadow-xl:  0 20px 25px rgba(0, 0, 0, 0.12);

  /* ---- Transitions ---- */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ==========================================================================
   B. Reset & Base
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-ink);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  line-height: 1.25;
}

p {
  margin-top: 0;
}

button {
  font-family: inherit;
}

/* -- Utility: Screen-reader only -- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* -- Utility: Text Truncate -- */
.text-truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* -- Utility: Text Clamp 2 lines -- */
.text-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================================
   C. Container
   ========================================================================== */
.container {
  width: min(100% - 2 * var(--container-padding-mobile), var(--container-max));
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .container {
    width: min(100% - 2 * var(--container-padding-tablet), var(--container-max));
  }
}

@media (min-width: 1024px) {
  .container {
    width: min(100% - 2 * var(--container-padding-desktop), var(--container-max));
  }
}

/* ==========================================================================
   D. Button System
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-weight: 600;
  font-size: var(--font-size-sm);
  line-height: 1;
  cursor: pointer;
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base),
              box-shadow var(--transition-base);
  border: none;
  min-height: 44px;
  text-align: center;
  white-space: nowrap;
  user-select: none;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

@media (hover: hover) {
  .btn--primary:hover {
    background-color: var(--color-primary-hover);
  }
}

.btn--primary:active {
  background-color: var(--color-primary-dark);
}

.btn--outline {
  background-color: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
}

@media (hover: hover) {
  .btn--outline:hover {
    background-color: var(--color-primary-50);
  }
}

.btn--outline:active {
  background-color: var(--color-primary-100);
}

.btn--sm {
  padding: 8px 16px;
  font-size: var(--font-size-xs);
  min-height: 36px;
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-muted);
}

@media (hover: hover) {
  .btn--ghost:hover {
    color: var(--color-primary);
  }
}

.btn--ghost:active {
  color: var(--color-primary-dark);
}

.btn.is-disabled,
.btn:disabled {
  pointer-events: none;
  opacity: 0.6;
  cursor: not-allowed;
}

/* ==========================================================================
   E. Header Styles
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  height: var(--header-height);
  gap: 32px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.header__logo-img {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
}

.header__logo-text {
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  white-space: nowrap;
}

/* -- Nav -- */
.header__nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.header__nav .menu {
  display: flex;
  gap: 4px;
}

.header__nav .menu li a {
  display: flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  color: var(--color-ink-light);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
  white-space: nowrap;
}

@media (hover: hover) {
  .header__nav .menu li a:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-50);
  }
}

.header__nav .menu li.current-menu-item a,
.header__nav .menu li.current_page_item a {
  color: var(--color-primary);
  font-weight: 600;
}

/* -- Actions -- */
.header__actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

/* -- Hamburger (hidden on desktop) -- */
.header__hamburger {
  display: none;
}

/* --- Mobile Header --- */
@media (max-width: 1023px) {
  .header__inner {
    height: var(--header-height-mobile);
  }

  .header__logo-img {
    width: 36px;
    height: 36px;
  }

  .header__logo-text {
    font-size: var(--font-size-base);
  }

  .header__nav {
    display: none;
  }

  .header__actions {
    display: none;
  }

  .header__hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-left: auto;
  }

  .header__hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-ink);
    border-radius: 2px;
    position: relative;
    transition: background-color var(--transition-fast);
  }

  .header__hamburger-line::before,
  .header__hamburger-line::after {
    content: '';
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-ink);
    border-radius: 2px;
    position: absolute;
    left: 0;
    transition: transform var(--transition-base);
  }

  .header__hamburger-line::before {
    top: -7px;
  }

  .header__hamburger-line::after {
    top: 7px;
  }
}

/* ==========================================================================
   F. Mobile Drawer Styles
   ========================================================================== */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 2000;
  pointer-events: none;
  visibility: hidden;
}

.drawer.is-open {
  pointer-events: auto;
  visibility: visible;
}

/* -- Backdrop -- */
.drawer__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.drawer.is-open .drawer__backdrop {
  opacity: 1;
}

/* -- Panel -- */
.drawer__panel {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background-color: var(--color-white);
  transform: translateX(-100%);
  transition: transform var(--transition-slow) cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.drawer.is-open .drawer__panel {
  transform: translateX(0);
}

/* -- Drawer Header -- */
.drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.drawer__close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: background-color var(--transition-fast);
  order: 1;
}

@media (hover: hover) {
  .drawer__close:hover {
    background-color: var(--color-surface);
  }
}

.drawer__close:active {
  background-color: var(--color-border);
}

.drawer__close-icon {
  width: 20px;
  height: 20px;
  color: var(--color-ink);
}

/* -- Drawer Brand -- */
.drawer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.drawer__brand-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
}

.drawer__brand-text {
  font-weight: 700;
  color: var(--color-primary);
}

/* -- Drawer Nav -- */
.drawer__nav {
  flex: 1;
  padding: 8px 0;
}

.drawer__menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

.drawer__menu-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.drawer__menu-link {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 14px 8px 14px 20px;
  color: var(--color-ink);
  font-size: var(--font-size-base);
  font-weight: 500;
  min-height: 48px;
  transition: background-color var(--transition-fast);
}

.drawer__menu-link:active {
  background-color: var(--color-primary-50);
}

.drawer__toggle {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  transition: transform var(--transition-base);
  flex-shrink: 0;
  color: var(--color-muted);
  margin-right: 8px;
}

.drawer__toggle.is-expanded {
  transform: rotate(180deg);
}

/* -- Submenu -- */
.drawer__submenu {
  display: none;
  width: 100%;
  background-color: var(--color-surface);
}

.drawer__submenu.is-open {
  display: block;
}

.drawer__submenu a {
  display: block;
  padding: 12px 20px 12px 36px;
  color: var(--color-ink-light);
  font-size: var(--font-size-sm);
  transition: background-color var(--transition-fast),
              color var(--transition-fast);
}

.drawer__submenu a:active {
  background-color: var(--color-primary-50);
  color: var(--color-primary);
}

/* -- Drawer Actions -- */
.drawer__actions {
  padding: 16px 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}

/* ==========================================================================
   G. Footer Styles
   ========================================================================== */
.site-footer {
  background-color: var(--color-ink);
  color: rgba(255, 255, 255, 0.85);
  padding-top: 64px;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer__logo-img {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
}

.footer__brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-white);
}

.footer__desc {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  margin-top: 12px;
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__links li + li {
  margin-top: 12px;
}

.footer__links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast),
              padding-left var(--transition-fast);
}

@media (hover: hover) {
  .footer__links a:hover {
    color: var(--color-white);
    padding-left: 4px;
  }
}

.footer__bottom {
  margin-top: 48px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
}

/* -- Footer Responsive -- */
@media (max-width: 1023px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .site-footer {
    padding-top: 48px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* ==========================================================================
   H. Section Header Component
   ========================================================================== */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
}

.section-header__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-ink);
  margin: 0;
}

.section-header__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: gap var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.section-header__link::after {
  content: '→';
  transition: transform var(--transition-fast);
}

@media (hover: hover) {
  .section-header__link:hover {
    gap: 10px;
  }
}

/* ==========================================================================
   I. Responsive Grid
   ========================================================================== */
.grid {
  display: grid;
  gap: 24px;
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1023px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 479px) {
  .grid--2 {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   J. Card Component
   ========================================================================== */

/* -- Base Card -- */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base),
              transform var(--transition-base);
  display: flex;
  flex-direction: column;
}

@media (hover: hover) {
  .card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
  }
}

/* -- Thumbnail -- */
.card__thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--color-surface);
}

.card__thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

@media (hover: hover) {
  .card:hover .card__thumb-img {
    transform: scale(1.05);
  }
}

/* -- Badge -- */
.card__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  background-color: var(--color-primary);
  color: var(--color-white);
  z-index: 1;
}

/* -- Photo Count -- */
.card__photo-count {
  position: absolute;
  bottom: 8px;
  right: 8px;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  background-color: rgba(0, 0, 0, 0.6);
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 4px;
  z-index: 1;
}

/* -- Body -- */
.card__body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* -- Title -- */
.card__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-ink);
  margin: 0 0 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

/* -- Price -- */
.card__price {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* -- Meta -- */
.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  margin-bottom: 8px;
}

.card__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* -- Location -- */
.card__location {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* -- Footer -- */
.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

/* -- Time -- */
.card__time {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

/* -- Save Button -- */
.card__save {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-full);
  color: var(--color-muted);
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
}

@media (hover: hover) {
  .card__save:hover {
    color: var(--color-error);
    background-color: rgba(239, 68, 68, 0.1);
  }
}

.card__save:active {
  color: var(--color-error);
}

/* -- Card Variant: BDS (default) -- */
.card--bds .card__thumb {
  aspect-ratio: 4 / 3;
}

/* -- Card Variant: Project -- */
.card--project .card__thumb {
  aspect-ratio: 16 / 9;
}

.card--project .card__developer {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

/* -- Card Variant: Article -- */
.card--article .card__category {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.card--article .card__excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.6;
}

/* ==========================================================================
   K. Empty State
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 64px 24px;
}

.empty-state__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  color: var(--color-muted);
  opacity: 0.5;
}

.empty-state__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-ink);
  margin: 0 0 8px;
}

.empty-state__desc {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  max-width: 400px;
  margin: 0 auto 24px;
  line-height: 1.6;
}

/* ==========================================================================
   L. Hero Section (front-page)
   ========================================================================== */
.hero {
  min-height: 480px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
  padding: 64px 0;
}

/* Decorative circle */
.hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  top: -200px;
  right: -150px;
  opacity: 0.6;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
  opacity: 0.5;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.8;
  margin-bottom: 16px;
  font-weight: 600;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 20px;
  max-width: 700px;
}

.hero__desc {
  font-size: var(--font-size-lg);
  opacity: 0.85;
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* -- Hero Buttons -- */
.btn--hero {
  background-color: var(--color-white);
  color: var(--color-primary);
  font-weight: 700;
}

@media (hover: hover) {
  .btn--hero:hover {
    background-color: var(--color-primary-50);
  }
}

.btn--hero:active {
  background-color: var(--color-primary-100);
}

.btn--hero-outline {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

@media (hover: hover) {
  .btn--hero-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
}

.btn--hero-outline:active {
  background-color: rgba(255, 255, 255, 0.15);
}

/* -- Hero Responsive -- */
@media (max-width: 767px) {
  .hero {
    min-height: 400px;
    padding: 40px 0;
  }

  .hero__desc {
    font-size: var(--font-size-base);
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }
}

/* ==========================================================================
   M. Content / Entry Styles
   ========================================================================== */
.content-entry {
  padding: 48px 0;
}

.entry-content {
  max-width: 760px;
  line-height: 1.8;
}

.entry-content h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-top: 32px;
  margin-bottom: 16px;
}

.entry-content h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 12px;
}

.entry-content p {
  margin-bottom: 16px;
  color: var(--color-ink-light);
}

.entry-content ul,
.entry-content ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.entry-content li {
  margin-bottom: 6px;
  color: var(--color-ink-light);
}

.entry-content img {
  border-radius: var(--radius-lg);
  margin: 24px 0;
}

.entry-content blockquote {
  margin: 24px 0;
  padding: 16px 24px;
  border-left: 4px solid var(--color-primary);
  background-color: var(--color-primary-50);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-ink);
  font-style: italic;
}

/* ==========================================================================
   N. Additional Breakpoint Adjustments
   ========================================================================== */

/* Ensure no horizontal overflow at any breakpoint */
html,
body {
  overflow-x: hidden;
}

/* Section spacing responsive */
@media (max-width: 767px) {
  .content-entry {
    padding: 32px 0;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .section-header__title {
    font-size: var(--font-size-xl);
  }
}

/* Print-friendly basics */
@media print {
  .site-header,
  .drawer,
  .site-footer {
    display: none;
  }

  body {
    font-size: 12pt;
    color: #000;
  }
}

/* ==========================================================================
   Filter Component (P4-002)
   ========================================================================== */
.listing-content {
  flex: 1;
}

.listing-sidebar {
  width: 300px;
  flex-shrink: 0;
}

.layout-listing {
  display: flex;
  gap: 32px;
  margin-top: 24px;
}

@media (max-width: 1023px) {
  .listing-sidebar--desktop {
    display: none;
  }
  .layout-listing {
    flex-direction: column;
  }
}

.filter-bar {
  background: var(--color-surface);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.filter-form .form-group {
  margin-bottom: 16px;
}

.filter-form label {
  display: block;
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: 8px;
}

.filter-input, .filter-select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: var(--font-size-sm);
}

.filter-range {
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.filter-toggle-btn {
  display: none;
  margin-bottom: 24px;
  width: 100%;
}

@media (max-width: 1023px) {
  .filter-toggle-btn {
    display: flex;
  }
}

.filter-drawer {
  position: fixed;
  inset: 0;
  z-index: 2000;
  pointer-events: none;
  visibility: hidden;
}

.filter-drawer.is-open {
  pointer-events: auto;
  visibility: visible;
}

.filter-drawer__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.filter-drawer.is-open .filter-drawer__overlay {
  opacity: 1;
}

.filter-drawer__content {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background-color: var(--color-white);
  transform: translateX(100%);
  transition: transform var(--transition-slow) cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.filter-drawer.is-open .filter-drawer__content {
  transform: translateX(0);
}

.filter-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}

.filter-drawer__header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
}

.filter-drawer__header .btn-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
}

.filter-drawer__body {
  padding: 20px;
}

/* Pagination */
.pagination-wrapper {
  margin-top: 40px;
  margin-bottom: 40px;
}

.pagination-wrapper ul.page-numbers {
  display: flex;
  list-style: none;
  gap: 8px;
  padding: 0;
  margin: 0;
  justify-content: center;
}

.pagination-wrapper ul.page-numbers li a, 
.pagination-wrapper ul.page-numbers li span.page-numbers {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.pagination-wrapper ul.page-numbers li span.current {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.pagination-wrapper ul.page-numbers li a:hover {
  background-color: var(--color-primary-50);
  color: var(--color-primary);
}

/* ==========================================================================
   O. Single Property Styles
   ========================================================================== */
.single-property {
  margin-top: 24px;
}

.single-property__layout {
  display: flex;
  gap: 32px;
}

.single-property__main {
  width: 70%;
  flex-shrink: 0;
}

.single-property__sidebar {
  width: 30%;
  flex-shrink: 0;
}

/* -- Breadcrumb -- */
.breadcrumb {
  font-size: var(--font-size-sm);
  margin-bottom: 20px;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 8px;
  align-items: center;
  color: var(--color-muted);
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: '/';
  color: var(--color-border);
}

.breadcrumb__link {
  color: var(--color-ink-light);
  transition: color var(--transition-fast);
}

.breadcrumb__link:hover {
  color: var(--color-primary);
}

.breadcrumb__item--active {
  color: var(--color-ink);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 300px;
}

/* -- Gallery -- */
.property-gallery {
  position: relative;
}

.property-gallery__main-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
}

.property-gallery__main {
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.property-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.property-gallery__main img:hover {
  transform: scale(1.02);
}

.property-gallery__count {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background-color: rgba(0, 0, 0, 0.7);
  color: var(--color-white);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  z-index: 2;
}

.property-gallery__zoom-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background-color: rgba(0, 0, 0, 0.7);
  border: none;
  color: var(--color-white);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: background-color var(--transition-fast);
}

.property-gallery__zoom-btn:hover {
  background-color: var(--color-primary);
}

.property-gallery__thumbs {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.property-gallery__thumb {
  width: 100px;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  padding: 0;
  cursor: pointer;
  background-color: var(--color-surface);
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}

.property-gallery__thumb.is-active {
  border-color: var(--color-primary);
}

.property-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.property-gallery__video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.property-gallery__video-embed iframe,
.property-gallery__video-embed object,
.property-gallery__video-embed embed {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* -- Lightbox -- */
.property-gallery__lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.95);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.property-gallery__lightbox.is-active {
  opacity: 1;
  pointer-events: auto;
}

.property-gallery__lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 36px;
  cursor: pointer;
  line-height: 1;
  z-index: 3100;
}

.property-gallery__lightbox-content {
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.property-gallery__lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.property-gallery__lightbox-prev,
.property-gallery__lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--color-white);
  font-size: 24px;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
  z-index: 3100;
}

.property-gallery__lightbox-prev { left: 24px; }
.property-gallery__lightbox-next { right: 24px; }

.property-gallery__lightbox-prev:hover,
.property-gallery__lightbox-next:hover {
  background-color: var(--color-primary);
}

.property-gallery__lightbox-caption {
  position: absolute;
  bottom: 24px;
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
}

/* -- Property Info -- */
.property-info__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.property-info__badges {
  display: flex;
  gap: 8px;
}

.badge {
  display: inline-flex;
  padding: 4px 12px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.badge--featured {
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.badge--verified {
  background-color: rgba(34, 197, 94, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.property-info__code {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.property-info__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-ink);
  margin-top: 12px;
  margin-bottom: 12px;
  line-height: 1.35;
}

.property-info__address {
  font-size: var(--font-size-base);
  color: var(--color-ink-light);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.property-info__address .location-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.property-info__price-banner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  gap: 12px;
}

.property-info__price-group {
  display: flex;
  align-items: baseline;
}

.price-label {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-right: 8px;
}

.property-info__price {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-primary);
}

.property-info__price-per-sqm {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-left: 8px;
}

.property-info__posted-time {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.property-info__metrics {
  display: flex;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  gap: 32px;
}

.property-info__metric-item {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  margin-bottom: 4px;
}

.metric-val {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-ink);
}

/* -- Spec Table -- */
.spec-table {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 32px;
  padding: 20px;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.spec-table__row {
  display: flex;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.spec-table__label {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.spec-table__value {
  font-weight: 600;
  color: var(--color-ink);
  font-size: var(--font-size-sm);
}

/* -- Contact Card (Sidebar) -- */
.contact-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 104px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.contact-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.contact-card__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-card__avatar {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--color-primary-100);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.contact-card__meta {
  display: flex;
  flex-direction: column;
}

.contact-card__name {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 800;
  color: var(--color-ink);
  line-height: 1.2;
}

.contact-card__badge {
  font-size: 12px;
  color: var(--color-primary);
  background-color: var(--color-primary-50);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  display: inline-block;
  margin-bottom: 2px;
  align-self: flex-start;
}

.contact-card__agency {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  display: block;
}

.contact-card__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-card__phone-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  font-weight: 700;
  padding: 14px 20px;
  font-size: var(--font-size-base);
  border-radius: var(--radius-md);
  width: 100%;
  cursor: pointer;
  min-height: 52px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(30, 84, 26, 0.2);
}

.contact-card__phone-btn:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(30, 84, 26, 0.3);
}

.contact-card__phone-btn .phone-icon {
  margin-right: 8px;
}

.contact-card__phone-btn .reveal-text {
  font-size: var(--font-size-xs);
  margin-left: 8px;
  opacity: 0.8;
  font-weight: 400;
}

.contact-card__actions-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.contact-card__action-btn {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  gap: 8px;
  transition: all 0.3s ease;
  text-decoration: none;
}

.contact-card__action-btn--zalo {
  background-color: #0068ff;
  color: white;
  border: 1px solid #0068ff;
}

.contact-card__action-btn--zalo:hover {
  background-color: #005ce6;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 104, 255, 0.2);
}

.contact-card__action-btn--email {
  background-color: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-border);
}

.contact-card__action-btn--email:hover {
  background-color: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* -- Sticky Bottom Bar for Mobile (< 1024px) -- */
.contact-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.08);
  padding: 12px 16px;
  z-index: 900;
}

.contact-bottom-bar__container {
  display: flex;
  gap: 12px;
  max-width: 600px;
  margin: 0 auto;
}

.contact-bottom-bar__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: var(--font-size-sm);
  text-align: center;
  cursor: pointer;
  border: none;
}

.contact-bottom-bar__btn--call {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.contact-bottom-bar__btn--zalo {
  background-color: #0068ff;
  color: var(--color-white);
}

.contact-bottom-bar__btn--details {
  background-color: var(--color-surface);
  color: var(--color-ink);
  border: 1px solid var(--color-border);
}

/* -- Map Section -- */
.map-section__container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-section__placeholder {
  padding: 40px 24px;
  text-align: center;
  background-color: var(--color-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.map-placeholder-icon {
  color: var(--color-muted);
  margin-bottom: 16px;
  opacity: 0.7;
}

.placeholder-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 4px;
}

.placeholder-desc {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  max-width: 380px;
  margin: 0 auto 16px;
  line-height: 1.5;
}

.placeholder-coords {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
}

.map-loading {
  height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  background-color: var(--color-surface);
}

/* -- Related Section -- */
.related-section__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.related-section__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-ink);
  margin: 0;
}

.related-section__more-btn {
  color: var(--color-primary);
  font-weight: 700;
  font-size: var(--font-size-sm);
}

.related-section__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* ==========================================================================
   Responsive Breakpoints for Single Property
   ========================================================================== */
@media (max-width: 1023px) {
  .single-property__layout {
    flex-direction: column;
  }

  .single-property__main {
    width: 100%;
  }

  .single-property__sidebar {
    width: 100%;
    margin-top: 32px;
  }

  .contact-card {
    position: static;
    box-shadow: none;
    background-color: var(--color-surface);
  }

  /* Kích hoạt Sticky Bottom Bar */
  .contact-bottom-bar {
    display: block;
  }

  /* Spacing để tránh che content */
  .single-property {
    padding-bottom: 84px; /* bottom bar height 68px + 16px gap */
  }
  
  .related-section__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .spec-table {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .property-gallery__main {
    aspect-ratio: 4 / 3;
  }

  .related-section__grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   P6-003: Homepage UI Refactor Styles (Slideshow, Spacing, Card Ngang)
   ========================================================================== */

/* 1. Slideshow Hero Styles */
.hero.slideshow-hero {
  min-height: 700px;
  height: 700px;
  position: relative;
  overflow: hidden;
  padding: 0;
  background-color: #000;
}

.slides-container {
  width: 100%;
  height: 100%;
  position: relative;
}

.slide-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  z-index: 1;
  transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out;
  display: flex;
  align-items: flex-end;
  padding-bottom: 110px;
}

.slide-item.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.slide-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.75) 100%);
  z-index: 2;
  pointer-events: none;
}

.hero__bg-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero__container {
  position: relative;
  z-index: 3;
  width: 100%;
  padding-left: 24px;
  padding-right: 24px;
  display: flex;
  justify-content: center;
}

.hero__inner {
  max-width: 680px;
  width: 100%;
}

@media (min-width: 992px) {
  .hero__inner {
    transform: translateX(-5%);
  }
}

/* Animations for slide elements (Premium Fade-In Up) */
.slide-item .hero__title,
.slide-item .hero__desc,
.slide-item .hero__actions {
  opacity: 0;
  transform: translateY(24px);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s ease;
  will-change: transform, opacity;
}

.slide-item.active .hero__title,
.slide-item.active .hero__desc,
.slide-item.active .hero__actions {
  opacity: 1;
  transform: translateY(0);
}

.slide-item.active .hero__title {
  transition-delay: 0.15s;
}

.slide-item.active .hero__desc {
  transition-delay: 0.3s;
}

.slide-item.active .hero__actions {
  transition-delay: 0.45s;
}

.hero__title {
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-white);
  margin: 0 0 16px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero__desc {
  font-size: clamp(14px, 1.8vw, 18px);
  font-weight: 500;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 28px;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.6);
}

.btn--hero {
  background-color: var(--color-white);
  color: var(--color-primary);
  font-weight: 700;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  font-size: var(--font-size-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
}

.btn--hero:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.03) translateY(-2px);
  box-shadow: 0 6px 20px rgba(30, 84, 26, 0.35);
}

.hero__dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 4;
}

.hero__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.4);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: all 0.3s ease;
}

.hero__dot:hover {
  background-color: rgba(255, 255, 255, 0.8);
}

.hero__dot.active {
  width: 24px;
  border-radius: 6px;
  background-color: var(--color-white);
}

/* 2. Responsive Slideshow */
@media (max-width: 767px) {
  .hero.slideshow-hero {
    min-height: 520px;
    height: 520px;
  }

  .slide-item {
    align-items: flex-end;
    padding-bottom: 85px;
  }

  .hero__inner {
    text-align: center;
  }

  .hero__actions {
    display: flex;
    justify-content: center;
  }

  .btn--hero {
    width: 100%;
    max-width: 280px;
  }
}

/* 3. Section Spacing & Premium Heading */
.section {
  margin-top: 56px;
  margin-bottom: 56px;
}

.section-header {
  border-left: 4px solid var(--color-primary);
  padding-left: 16px;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-header__content {
  flex: 1;
  min-width: 0;
}

.section-header__title {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.3;
  margin: 0;
}

.section-header__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-top: 6px;
  margin-bottom: 0;
  font-weight: 400;
  line-height: 1.4;
}

.section-header__link {
  color: var(--color-primary);
  font-weight: 600;
  font-size: var(--font-size-sm);
  transition: all 0.2s ease;
}

.section-header__link:hover {
  color: var(--color-accent);
}

/* 4. Horizontal Card & Responsive Article Grid */
.grid--article-horizontal {
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card--article.card--horizontal {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 16px;
  padding: 12px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  height: 100%;
}

.card--article.card--horizontal .card__thumb {
  width: 110px;
  height: 110px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  aspect-ratio: 1 / 1;
}

.card--article.card--horizontal .card__thumb-img {
  border-radius: var(--radius-md);
}

.card--article.card--horizontal .card__content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
  min-width: 0; /* Cho phép line-clamp hoạt động chính xác trong flex container */
}

.card--article.card--horizontal .card__body {
  padding: 0;
  flex: 1;
}

.card--article.card--horizontal .card__category {
  font-size: 11px;
  margin-bottom: 4px;
}

.card--article.card--horizontal .card__title {
  font-size: var(--font-size-sm);
  margin-bottom: 6px;
  font-weight: 600;
  line-height: 1.4;
  -webkit-line-clamp: 2;
}

.card--article.card--horizontal .card__excerpt {
  font-size: var(--font-size-xs);
  line-height: 1.5;
  -webkit-line-clamp: 2;
  margin-bottom: 0;
}

.card--article.card--horizontal .card__footer {
  padding: 8px 0 0;
  border-top: none;
  margin-top: 4px;
}

/* Responsive cho layout Card ngang bài viết */
@media (max-width: 1023px) {
  .grid--article-horizontal {
    grid-template-columns: repeat(2, 1fr);
  }

  .card--article.card--horizontal .card__excerpt {
    display: none; /* Ẩn excerpt để tránh chật chội trên tablet */
  }
}

@media (max-width: 767px) {
  .grid--article-horizontal {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Chuyển card ngang thành dọc trên mobile để có diện tích hiển thị tối đa */
  .card--article.card--horizontal {
    flex-direction: column;
    padding: 0;
    gap: 0;
  }

  .card--article.card--horizontal .card__thumb {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }

  .card--article.card--horizontal .card__thumb-img {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }

  .card--article.card--horizontal .card__content {
    padding: 16px;
  }

  .card--article.card--horizontal .card__excerpt {
    display: -webkit-box; /* Hiện lại excerpt trên mobile dạng dọc */
    -webkit-line-clamp: 2;
  }

  .card--article.card--horizontal .card__footer {
    border-top: 1px solid var(--color-border);
    padding-top: 12px;
    margin-top: 12px;
  }
}

/* 5. SEO & Tag Cloud Polish */
.section--seo-block {
  border-top: 1px solid var(--color-border);
  padding-top: 48px;
  margin-top: 48px;
}

.seo-intro__title {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  margin-bottom: 16px;
  font-weight: 700;
}

.seo-intro__content {
  line-height: 1.7;
  color: var(--color-ink-light);
  font-size: var(--font-size-sm);
}

.seo-intro__content p {
  margin-bottom: 12px;
}

.seo-cloud {
  border-top: 1px dashed var(--color-border);
  padding-top: 24px;
  margin-top: 24px;
}

.seo-cloud__title {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 16px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.seo-cloud__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.seo-cloud__tag-link {
  padding: 8px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  text-decoration: none;
  color: var(--color-ink-light);
  font-size: var(--font-size-xs);
  font-weight: 500;
  transition: all 0.2s ease;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
}

.seo-cloud__tag-link:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}