@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');
@import url('https://cdn.jsdelivr.net/npm/remixicon@2.5.0/fonts/remixicon.css');

:root {
  --primary: #2D6A4F;
  --primary-light: #52B788;
  --primary-dark: #1B4332;
  --secondary: #D8F3DC;
  --accent: #F77F00;
  --accent-light: #FCBF49;
  --accent-dark: #C56200;
  --neutral-100: #F8FAF9;
  --neutral-200: #EDF4F0;
  --neutral-300: #C8DDD2;
  --neutral-700: #4A6360;
  --neutral-900: #1C2B27;
  --text-primary: #1C2B27;
  --text-secondary: #4A6360;
  --text-light: #7A9E96;
  --bg-main: #F8FAF9;
  --bg-card: #FFFFFF;
  --shadow-sm: 0 2px 8px rgba(45, 106, 79, 0.08);
  --shadow-md: 0 4px 20px rgba(45, 106, 79, 0.14);
  --shadow-lg: 0 8px 40px rgba(45, 106, 79, 0.18);
  --shadow-accent: 0 4px 20px rgba(247, 127, 0, 0.25);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 36px;
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===================== SCROLLBAR ===================== */
::-webkit-scrollbar {
  width: 8px;
  background: var(--neutral-200);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-light), var(--primary));
  border-radius: 8px;
  border: 2px solid var(--neutral-200);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

/* ===================== TYPOGRAPHY ===================== */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.7rem); }
h4 { font-size: 1.2rem; }

p {
  color: var(--text-secondary);
  line-height: 1.75;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--primary-light);
}

/* ===================== STICKY HEADER ===================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: rgba(248, 250, 249, 0.92);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1.5px solid var(--neutral-300);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}

.site-header.scrolled {
  background: rgba(248, 250, 249, 0.98);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 70px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.site-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.3rem;
  box-shadow: 0 2px 10px rgba(45,106,79,0.3);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.site-logo:hover .logo-icon {
  transform: rotate(-8deg) scale(1.08);
  box-shadow: 0 4px 16px rgba(45,106,79,0.4);
}

.site-logo .logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -0.03em;
}

.site-logo .logo-text span {
  color: var(--accent);
}

/* ===================== NAVIGATION ===================== */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  position: relative;
  padding: 0.45rem 0.9rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - 1.4rem);
  height: 2.5px;
  background: linear-gradient(90deg, var(--primary-light), var(--accent));
  border-radius: 2px;
  transition: transform var(--transition-base);
}

.nav-link:hover {
  color: var(--primary);
  background: var(--secondary);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
  color: var(--primary-dark);
  background: var(--secondary);
}

.nav-cta {
  margin-left: 0.75rem;
}

/* ===================== MOBILE MENU BUTTON ===================== */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.menu-toggle:hover {
  background: var(--secondary);
}

.menu-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--primary-dark);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast), width var(--transition-base);
  transform-origin: center;
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
  width: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ===================== MOBILE MENU ===================== */
.mobile-menu {
  background: #fff;
  border-top: 1.5px solid var(--neutral-300);
  padding: 1rem 1.5rem 1.5rem;
  box-shadow: var(--shadow-md);
  animation: slideDown 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.mobile-menu .nav-link {
  display: block;
  padding: 0.7rem 0.9rem;
  margin-bottom: 0.2rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
}

.mobile-menu .nav-link::after {
  display: none;
}

.mobile-menu .nav-cta {
  margin-left: 0;
  margin-top: 0.75rem;
  display: block;
  text-align: center;
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.6rem;
  font-size: 0.95rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition-fast);
}

.btn:hover::before {
  background: rgba(255,255,255,0.12);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  box-shadow: 0 3px 14px rgba(45,106,79,0.28);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 22px rgba(45,106,79,0.36);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(45,106,79,0.2);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color: #fff;
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 28px rgba(247,127,0,0.38);
  color: #fff;
}

.btn-accent:active {
  transform: translateY(0) scale(0.98);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  box-shadow: none;
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(45,106,79,0.25);
}

.btn-ghost {
  background: var(--secondary);
  color: var(--primary-dark);
  box-shadow: none;
}

.btn-ghost:hover {
  background: var(--neutral-300);
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 0.45rem 1.1rem;
  font-size: 0.875rem;
  border-radius: 10px;
}

.btn-lg {
  padding: 0.9rem 2.2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
}

/* ===================== COOKIE BANNER ===================== */
.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 99999;
  width: calc(100% - 3rem);
  max-width: 820px;
  background: #fff;
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(45,106,79,0.06);
  padding: 1.4rem 1.8rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  animation: cookieSlideUp 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes cookieSlideUp {
  from { opacity: 0; transform: translateX(-50%) translateY(30px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.cookie-banner .cookie-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 4px rgba(247,127,0,0.3));
}

.cookie-banner .cookie-content {
  flex: 1;
}

.cookie-banner .cookie-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.cookie-banner .cookie-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.cookie-banner .cookie-content a {
  color: var(--primary-light);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cookie-banner .cookie-actions {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* ===================== FORMS ===================== */
.form-group {
  margin-bottom: 1.4rem;
  position: relative;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.form-label .required {
  color: var(--accent);
  margin-left: 3px;
}

.form-control {
  width: 100%;
  padding: 0.7rem 1.1rem;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: #fff;
  border: 2px solid var(--neutral-300);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  font-family: inherit;
  line-height: 1.5;
}

.form-control:hover {
  border-color: var(--primary-light);
  background: var(--neutral-100);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(45,106,79,0.12), 0 2px 8px rgba(45,106,79,0.08);
  background: #fff;
}

.form-control::placeholder {
  color: var(--text-light);
  font-weight: 400;
}

.form-control.is-valid {
  border-color: var(--primary-light);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2352B788'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 1.2rem;
  padding-right: 2.6rem;
}

.form-control.is-invalid {
  border-color: #E63946;
  box-shadow: 0 0 0 4px rgba(230,57,70,0.1);
}

.form-error {
  font-size: 0.8rem;
  color: #E63946;
  margin-top: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 0.35rem;
}

textarea.form-control {
  resize: vertical;
  min-height: 130px;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%234A6360'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 1.3rem;
  padding-right: 2.6rem;
  cursor: pointer;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.form-check-input {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: 2px solid var(--neutral-300);
  border-radius: 6px;
  background: #fff;
  appearance: none;
  cursor: pointer;
  margin-top: 1px;
  transition: all var(--transition-fast);
  position: relative;
}

.form-check-input:checked {
  background: var(--primary);
  border-color: var(--primary);
}

.form-check-input:checked::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 5px;
  width: 6px;
  height: 10px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

.form-check-input[type="radio"] {
  border-radius: 50%;
}

.form-check-input[type="radio"]:checked::after {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  border: none;
  background: #fff;
  border-radius: 50%;
}

.form-check-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1.5;
}

.input-icon-wrapper {
  position: relative;
}

.input-icon-wrapper .input-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  font-size: 1.1rem;
  pointer-events: none;
  transition: color var(--transition-fast);
}

.input-icon-wrapper .form-control {
  padding-left: 2.8rem;
}

.input-icon-wrapper .form-control:focus + .input-icon,
.input-icon-wrapper .form-control:focus ~ .input-icon {
  color: var(--primary);
}

.input-icon-wrapper .input-icon-left {
  left: 1rem;
  right: auto;
}

/* ===================== CARDS ===================== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1.5px solid var(--neutral-200);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-body {
  padding: 1.75rem;
}

.card-header {
  padding: 1.25rem 1.75rem;
  border-bottom: 1.5px solid var(--neutral-200);
  background: var(--neutral-100);
}

.card-footer {
  padding: 1.1rem 1.75rem;
  border-top: 1.5px solid var(--neutral-200);
  background: var(--neutral-100);
}

.card-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.card:hover .card-img {
  transform: scale(1.04);
}

.card-img-wrapper {
  overflow: hidden;
}

.card-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-primary {
  background: var(--secondary);
  color: var(--primary-dark);
}

.badge-accent {
  background: rgba(247,127,0,0.12);
  color: var(--accent-dark);
}

.badge-success {
  background: rgba(82, 183, 136, 0.15);
  color: #1B4332;
}

/* ===================== ARTICLE/BLOG CARD ===================== */
.article-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1.5px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.article-card .article-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}

.article-card .article-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 0.5rem;
  transition: color var(--transition-fast);
}

.article-card:hover .article-title {
  color: var(--primary);
}

.article-card .article-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}

.article-card .article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  margin-top: 1rem;
  border-top: 1px solid var(--neutral-200);
}

/* ===================== FEATURE CARDS ===================== */
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  border: 1.5px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--neutral-300);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
  transition: transform var(--transition-base);
  background: linear-gradient(135deg, var(--secondary), var(--neutral-200));
  color: var(--primary);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(-5deg);
}

/* ===================== HERO SECTION ===================== */
.hero-section {
  position: relative;
  overflow: hidden;
  background: linear-gradient(150deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(82,183,136,0.25) 0%, transparent 65%),
              radial-gradient(ellipse at 20% 80%, rgba(247,127,0,0.12) 0%, transparent 50%);
  pointer-events: none;
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  animation: floatParticle linear infinite;
}

@keyframes floatParticle {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 6rem 1.5rem;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 3rem;
}

.hero-text h1 {
  color: #fff;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-text h1 .highlight {
  background: linear-gradient(90deg, var(--accent-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  color: rgba(255,255,255,0.82);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat .stat-number {
  font-size: 1.8rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}

.hero-stat .stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  margin-top: 0.2rem;
}

/* ===================== SECTION STYLES ===================== */
.section {
  padding: 5rem 1.5rem;
}

.section-sm {
  padding: 3rem 1.5rem;
}

.section-lg {
  padding: 7rem 1.5rem;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
}

.container-narrow {
  max-width: 820px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--secondary);
  color: var(--primary-dark);
  padding: 0.35rem 1rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto;
  color: var(--text-secondary);
}

.section-divider {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent-light));
  border-radius: 4px;
  margin: 1rem auto 0;
}

/* ===================== GRID LAYOUTS ===================== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* ===================== ACCORDION ===================== */
.accordion {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1.5px solid var(--neutral-300);
  box-shadow: var(--shadow-sm);
}

.accordion-item {
  border-bottom: 1.5px solid var(--neutral-200);
  background: #fff;
  transition: background var(--transition-fast);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-item.open {
  background: var(--neutral-100);
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: left;
  gap: 1rem;
  transition: color var(--transition-fast);
}

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

.accordion-icon {
  width: 30px;
  height: 30px;
  min-width: 30px;
  border-radius: 8px;
  background: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
  transition: transform var(--transition-base), background var(--transition-base);
}

.accordion-item.open .accordion-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-base);
  padding: 0 1.5rem;
}

.accordion-item.open .accordion-body {
  max-height: 600px;
  padding: 0 1.5rem 1.4rem;
}

.accordion-body p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ===================== ALERTS & NOTICES ===================== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  font-size: 0.9rem;
  line-height: 1.6;
}

.alert-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.alert-success {
  background: rgba(82,183,136,0.1);
  border-color: rgba(82,183,136,0.3);
  color: #1B4332;
}

.alert-warning {
  background: rgba(247,127,0,0.1);
  border-color: rgba(247,127,0,0.3);
  color: #7A3E00;
}

.alert-info {
  background: rgba(45,106,79,0.08);
  border-color: rgba(45,106,79,0.2);
  color: var(--primary-dark);
}

.alert-error {
  background: rgba(230,57,70,0.08);
  border-color: rgba(230,57,70,0.25);
  color: #8B1120;
}

/* ===================== TESTIMONIALS ===================== */
.testimonial-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1.5px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 5rem;
  line-height: 1;
  color: var(--secondary);
  font-family: Georgia, serif;
  pointer-events: none;
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.testimonial-rating {
  display: flex;
  gap: 3px;
  margin-bottom: 1rem;
}

.testimonial-rating .star {
  color: var(--accent);
  font-size: 1.1rem;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  font-style: italic;
  margin-bottom: 1.25rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.testimonial-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  border: 2.5px solid var(--secondary);
}

.testimonial-avatar-placeholder {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.testimonial-title {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* ===================== LOADING SPINNER ===================== */
.spinner {
  display: inline-block;
  width: 44px;
  height: 44px;
  border: 3.5px solid var(--neutral-300);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

.spinner-sm {
  width: 22px;
  height: 22px;
  border-width: 2.5px;
}

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 5px;
}

.spinner-accent {
  border-color: rgba(247,127,0,0.2);
  border-top-color: var(--accent);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner-dots {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.spinner-dots span {
  width: 9px;
  height: 9px;
  background: var(--primary);
  border-radius: 50%;
  animation: dotBounce 1.2s ease-in-out infinite;
}

.spinner-dots span:nth-child(2) { animation-delay: 0.2s; }
.spinner-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotBounce {
  0%, 80%, 100% { transform: scale(0.75); opacity: 0.5; }
  40% { transform: scale(1.1); opacity: 1; }
}

/* ===================== PROGRESS BAR ===================== */
.progress-bar {
  width: 100%;
  height: 10px;
  background: var(--neutral-200);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 999px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.progress-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.35), transparent);
  animation: shimmer 1.8s infinite;
}

@keyframes shimmer {
  from { transform: translateX(-100%); }
  to   { transform: translateX(100%); }
}

/* ===================== TAGS & TOPICS ===================== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.85rem;
  background: var(--secondary);
  color: var(--primary-dark);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--neutral-300);
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-1px);
}

/* ===================== BREADCRUMB ===================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  padding: 0.75rem 0;
}

.breadcrumb-item {
  color: var(--text-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb-item.active {
  color: var(--text-primary);
  font-weight: 600;
}

.breadcrumb-sep {
  color: var(--neutral-300);
  font-size: 0.75rem;
}

/* ===================== TABLE OF CONTENTS ===================== */
.toc {
  background: var(--neutral-100);
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.toc-title {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.toc-link {
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--transition-fast);
  padding: 0.2rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
  margin-left: -0.15rem;
}

.toc-link:hover,
.toc-link.active {
  color: var(--primary);
  border-left-color: var(--primary-light);
}

/* ===================== SIDEBAR ===================== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1.5px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.sidebar-widget-header {
  padding: 1rem 1.5rem;
  background: var(--neutral-100);
  border-bottom: 1.5px solid var(--neutral-200);
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.sidebar-widget-body {
  padding: 1.25rem 1.5rem;
}

/* ===================== NEWSLETTER SECTION ===================== */
.newsletter-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  position: relative;
  overflow: hidden;
}

.newsletter-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(82,183,136,0.2) 0%, transparent 65%);
  pointer-events: none;
}

.newsletter-section::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: 5%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(247,127,0,0.1) 0%, transparent 65%);
  pointer-events: none;
}

.newsletter-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.newsletter-content h2 {
  color: #fff;
  margin-bottom: 0.75rem;
}

.newsletter-content p {
  color: rgba(255,255,255,0.78);
  margin-bottom: 2rem;
}

.newsletter-form {
  display: flex;
  max-width: 480px;
  margin: 0 auto;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

.newsletter-form .form-control {
  flex: 1;
  border: none;
  border-radius: 0;
  font-size: 0.95rem;
  background: rgba(255,255,255,0.95);
}

.newsletter-form .form-control:focus {
  box-shadow: none;
  background: #fff;
}

.newsletter-form .btn {
  border-radius: 0;
  white-space: nowrap;
}

/* ===================== FOOTER ===================== */
.site-footer {
  background: var(--neutral-900);
  color: rgba(255,255,255,0.75);
  padding: 4rem 1.5rem 2rem;
}

.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 2rem;
}

.footer-brand .logo-text {
  color: #fff;
  font-size: 1.5rem;
  font-weight: 800;
}

.footer-brand .logo-text span {
  color: var(--accent-light);
}

.footer-brand p {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

.footer-social {
  display: flex;
  gap: 0.6rem;
}

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.social-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
}

.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.83rem;
  color: rgba(255,255,255,0.4);
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: var(--primary-light);
}

/* ===================== SEARCH ===================== */
.search-box {
  position: relative;
  max-width: 500px;
}

.search-input {
  width: 100%;
  padding: 0.8rem 1.1rem 0.8rem 3rem;
  border: 2px solid var(--neutral-300);
  border-radius: 999px;
  font-size: 0.95rem;
  background: #fff;
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(45,106,79,0.12);
}

.search-icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  font-size: 1.1rem;
  pointer-events: none;
}

.search-btn {
  position: absolute;
  right: 0.4rem;
  top: 50%;
  transform: translateY(-50%);
}

/* ===================== STAT COUNTER ===================== */
.stat-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-card .stat-number {
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-card .stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* ===================== BACK TO TOP ===================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9000;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 16px rgba(45,106,79,0.3);
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(45,106,79,0.4);
}

/* ===================== PULSE ANIMATION ===================== */
@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 0 rgba(82,183,136,0.4); }
  50% { box-shadow: 0 0 0 12px rgba(82,183,136,0); }
}

.pulse-primary {
  animation: pulse-green 2s infinite;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  animation: fadeInUp 0.55s cubic-bezier(0.4, 0, 0.2, 1) both;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.5s ease both;
}

/* ===================== UTILITY CLASSES ===================== */
.text-primary-color { color: var(--primary); }
.text-accent-color  { color: var(--accent); }
.text-secondary-color { color: var(--text-secondary); }
.text-light-color   { color: var(--text-light); }

.bg-primary-gradient {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.bg-accent-gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

.bg-soft {
  background: var(--neutral-100);
}

.bg-white-card {
  background: var(--bg-card);
}

.rounded-custom {
  border-radius: var(--radius-lg);
}

.shadow-custom {
  box-shadow: var(--shadow-md);
}

.separator {
  height: 1.5px;
  background: linear-gradient(90deg, transparent, var(--neutral-300), transparent);
  margin: 0;
  border: none;
}

/* ===================== MEDIA QUERIES ===================== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 4rem 1.5rem;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr