/* =============================================================================
   PRSTI ENERGIES — CORPORATE DESIGN SYSTEM & STYLESHEET
   Domain: prstienergies.com
   Typography: Poppins (Google Fonts)
   Aesthetic: International Clean Energy & Climate Infrastructure
   ============================================================================= */

/* --- 1. CSS Custom Properties / Variables --- */
:root {
  /* Brand Color Palette */
  --primary: #123f32;          /* Deep forest green */
  --primary-dark: #0b2b23;     /* Midnight forest green */
  --primary-light: #1b5343;    /* Mid-tone evergreen */
  --primary-subtle: #f0f5f2;   /* Very soft green tint */
  
  --accent: #2e8b57;           /* Sea green natural accent */
  --accent-hover: #246e45;     /* Darker hover green */
  --accent-light: #e8f5ec;     /* Light mint accent surface */
  --accent-soft: rgba(46, 139, 87, 0.12);

  --dark: #111816;             /* Charcoal near-black */
  --dark-surface: #18221f;     /* Dark card/section surface */
  
  --text: #374151;             /* Primary high-contrast body text */
  --text-muted: #64748b;       /* Secondary neutral text */
  --text-light: #94a3b8;       /* Subtle caption text */

  --light: #f5f7f4;            /* Off-white warm neutral section bg */
  --white: #ffffff;            /* Pure white */
  
  --border: #dfe5e1;           /* Crisp neutral border */
  --border-light: #edf2ef;     /* Subtle divider */
  --border-focus: #2e8b57;     /* Focus outline ring */

  /* Typography */
  --font-sans: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(17, 24, 22, 0.04);
  --shadow-sm: 0 2px 4px rgba(17, 24, 22, 0.06), 0 1px 2px rgba(17, 24, 22, 0.04);
  --shadow-md: 0 4px 12px rgba(17, 24, 22, 0.08), 0 2px 4px rgba(17, 24, 22, 0.04);
  --shadow-lg: 0 12px 28px rgba(17, 24, 22, 0.10), 0 4px 8px rgba(17, 24, 22, 0.05);
  --shadow-xl: 0 20px 40px rgba(17, 24, 22, 0.14);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout & Spacing */
  --container-max: 1240px;
  --container-narrow: 880px;
  --container-padding: clamp(1rem, 4vw, 2rem);
  --header-height: 80px;
  --header-scrolled-height: 70px;
}

/* --- 2. CSS Reset & Baseline --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--white);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

main {
  flex: 1 0 auto;
}

img, svg, picture, video {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

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

a:hover {
  color: var(--accent);
}

ul, ol {
  list-style: none;
}

/* Accessibility: Focus styles & Skip link */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-to-content {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--primary);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 500;
  transition: top var(--transition-normal);
}

.skip-to-content:focus {
  top: 1rem;
}

/* --- 3. Typography Hierarchy --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--dark);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin-bottom: 0.75rem;
}

h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

h5 {
  font-size: 1.1rem;
  font-weight: 600;
}

h6 {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  margin-bottom: 1rem;
  color: var(--text);
  font-size: 1.025rem;
  font-weight: 400;
}

p.lead {
  font-size: clamp(1.1rem, 1.8vw, 1.25rem);
  line-height: 1.65;
  color: #4b5563;
  font-weight: 400;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.825rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 1.5rem;
  height: 2px;
  background-color: var(--accent);
  border-radius: 1px;
}

.eyebrow.light {
  color: var(--accent-light);
}

.eyebrow.light::before {
  background-color: var(--accent-light);
}

/* --- 4. Layout & Containers --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: clamp(4rem, 8vw, 6.5rem);
  padding-bottom: clamp(4rem, 8vw, 6.5rem);
  position: relative;
}

.section-sm {
  padding-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-dark {
  background-color: var(--primary-dark);
  color: #e2e8f0;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--white);
}

.section-dark p {
  color: #cbd5e1;
}

.section-light {
  background-color: var(--light);
}

.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header.text-center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-header.text-center .eyebrow {
  justify-content: center;
}

.section-header.text-center .eyebrow::after {
  content: '';
  display: inline-block;
  width: 1.5rem;
  height: 2px;
  background-color: var(--accent);
  border-radius: 1px;
}

.grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.25rem);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* --- 5. Buttons & Interactive Controls --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.975rem;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  transition: all var(--transition-normal);
  cursor: pointer;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-light);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-accent {
  background-color: var(--accent);
  color: var(--white);
  border: 1px solid var(--accent);
}

.btn-accent:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: var(--white);
  color: var(--dark);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background-color: var(--light);
  border-color: #cbd5e1;
  color: var(--primary);
  transform: translateY(-1px);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 0.6rem 1.15rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.btn-icon-right svg {
  transition: transform var(--transition-fast);
}

.btn-icon-right:hover svg {
  transform: translateX(3px);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--primary);
}

.link-arrow svg {
  transition: transform var(--transition-fast);
}

.link-arrow:hover {
  color: var(--accent);
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* --- 6. Header & Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(223, 229, 225, 0.6);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.site-header.is-scrolled {
  height: var(--header-scrolled-height);
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--border);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}

.brand-emblem {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: 0 2px 6px rgba(18, 63, 50, 0.2);
}

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

.brand-name {
  font-size: 1.225rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--primary-dark);
  line-height: 1.1;
}

.brand-tagline {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
}

/* Desktop Navigation */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--dark);
  padding: 0.5rem 0.25rem;
  position: relative;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--accent);
  border-radius: 1px;
}

/* Dropdown Navigation */
.nav-item-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 320px;
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.75rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition-normal);
  z-index: 1010;
}

.nav-item-dropdown:hover .dropdown-menu,
.nav-item-dropdown:focus-within .dropdown-menu,
.dropdown-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-link {
  display: block;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
  text-decoration: none;
}

.dropdown-link:hover {
  background-color: var(--light);
}

.dropdown-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dropdown-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 0;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  color: var(--dark);
}

.mobile-nav-toggle:hover {
  background-color: var(--light);
}

/* Mobile Off-Canvas Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 380px;
  height: 100vh;
  background-color: var(--white);
  box-shadow: var(--shadow-xl);
  z-index: 2000;
  transition: right var(--transition-normal);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.mobile-drawer.is-open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.mobile-drawer-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.mobile-drawer-close:hover {
  background-color: var(--light);
  color: var(--dark);
}

.mobile-drawer-body {
  padding: 1.5rem;
  flex: 1;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0.5rem;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--dark);
  border-bottom: 1px solid var(--border-light);
}

.mobile-nav-link.active {
  color: var(--accent);
  font-weight: 600;
}

.mobile-submenu {
  padding-left: 1rem;
  margin-top: 0.25rem;
  margin-bottom: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-sub-link {
  font-size: 0.925rem;
  color: var(--text-muted);
  padding: 0.4rem 0.5rem;
}

.mobile-sub-link:hover {
  color: var(--accent);
}

.mobile-drawer-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border);
  background-color: var(--light);
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(17, 24, 22, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 960px) {
  .desktop-nav,
  .header-actions {
    display: none;
  }
  .mobile-nav-toggle {
    display: flex;
  }
}

/* --- 7. Cards & Surface Styling --- */
.card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: clamp(1.5rem, 2.5vw, 2rem);
  transition: all var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
}

.card:hover {
  border-color: #cbd5e1;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-icon-wrapper {
  width: 52px;
  height: 52px;
  background-color: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: all var(--transition-normal);
}

.card:hover .card-icon-wrapper {
  background-color: var(--primary);
  color: var(--white);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.65rem;
  color: var(--dark);
}

.card-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
}

/* Feature/Pillar Highlight Cards */
.card-pillar {
  border-left: 4px solid var(--accent);
}

.card-dark {
  background-color: var(--dark-surface);
  border-color: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
}

.card-dark .card-title {
  color: var(--white);
}

.card-dark .card-text {
  color: #94a3b8;
}

/* --- 8. Badges, Tags & Status Indicators --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.785rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-accent {
  background-color: var(--accent-light);
  color: var(--accent);
}

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

.badge-neutral {
  background-color: #e2e8f0;
  color: #475569;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot.active {
  background-color: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.status-dot.pending {
  background-color: #eab308;
  box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.2);
}

/* --- 9. Hero Sections --- */
.page-hero {
  padding-top: calc(var(--header-height) + clamp(3rem, 6vw, 5.5rem));
  padding-bottom: clamp(3rem, 6vw, 5.5rem);
  background: linear-gradient(180deg, #f0f5f2 0%, #ffffff 100%);
  position: relative;
  overflow: hidden;
}

.page-hero-dark {
  padding-top: calc(var(--header-height) + clamp(3.5rem, 7vw, 6rem));
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
  background: radial-gradient(circle at 80% 20%, #174e3e 0%, var(--primary-dark) 70%);
  color: var(--white);
  position: relative;
}

.page-hero-dark h1,
.page-hero-dark h2 {
  color: var(--white);
}

.page-hero-dark p.lead {
  color: #cbd5e1;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.75rem;
}

/* Hero Stats / Trust Strip */
.trust-strip {
  padding: 1.5rem 0;
  background-color: var(--white);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.trust-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  align-items: center;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.trust-item-icon {
  color: var(--accent);
  flex-shrink: 0;
}

.trust-item-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dark);
  line-height: 1.35;
}

/* --- 10. Process Flow & Stepper --- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1.25rem;
  position: relative;
}

@media (max-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}

.process-step {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.25rem;
  position: relative;
  display: flex;
  flex-direction: column;
}

.process-step-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.75rem;
  line-height: 1;
}

.process-step-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.process-step-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* --- 11. Project & Editorial Cards --- */
.project-card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.project-media {
  position: relative;
  height: 220px;
  background-color: #1e2925;
  overflow: hidden;
}

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

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

.project-badge-overlay {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
}

.project-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.project-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.project-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex: 1;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.85rem;
}

/* Article Card */
.article-card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.article-media {
  height: 200px;
  background-color: #22352f;
  overflow: hidden;
}

.article-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.article-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.65rem;
  line-height: 1.35;
}

.article-title a {
  color: inherit;
}

.article-title a:hover {
  color: var(--accent);
}

.article-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex: 1;
}

/* --- 12. Accordion / FAQ --- */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background-color: var(--white);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.accordion-item.is-open {
  border-color: #cbd5e1;
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  background: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

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

.accordion-icon {
  color: var(--accent);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-collapse {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
}

.accordion-body {
  padding: 0 1.5rem 1.25rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- 13. Form Controls & Contact --- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dark);
  margin-bottom: 0.4rem;
}

.form-label .required {
  color: #dc2626;
  margin-left: 0.2rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  color: var(--dark);
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

.form-checkbox-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-top: 1rem;
}

.form-checkbox-wrapper input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.form-checkbox-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Anti-Spam Bot Trap */
.honeypot-field {
  display: none !important;
  opacity: 0 !important;
  position: absolute !important;
  left: -9999px !important;
  height: 0 !important;
  width: 0 !important;
  z-index: -1 !important;
}

/* Form Feedback Alerts */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.925rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  line-height: 1.5;
}

.alert-success {
  background-color: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.alert-error {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

/* --- 14. Breadcrumb Trail --- */
.breadcrumb-nav {
  margin-bottom: 1.5rem;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

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

.breadcrumb-separator {
  color: #cbd5e1;
}

.breadcrumb-item.active {
  color: var(--dark);
  font-weight: 500;
}

/* --- 15. Call to Action Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 5vw, 4.5rem);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  color: var(--white);
}

.cta-banner p {
  color: #cbd5e1;
  max-width: 680px;
}

/* --- 16. Footer --- */
.site-footer {
  background-color: var(--primary-dark);
  color: #cbd5e1;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
}

.footer-top {
  padding-top: clamp(3.5rem, 6vw, 5.5rem);
  padding-bottom: clamp(3rem, 5vw, 4.5rem);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.25fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-title {
  color: var(--white);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: #94a3b8;
  transition: color var(--transition-fast);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: #94a3b8;
}

.footer-contact-item svg {
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 0.2rem;
}

.footer-bottom {
  padding: 1.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.825rem;
  color: #64748b;
}

.footer-bottom-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-legal-links a {
  color: #64748b;
}

.footer-legal-links a:hover {
  color: #cbd5e1;
}

/* Back to Top Floating Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background-color: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 900;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--accent);
  transform: translateY(-2px);
}

/* --- 17. Utilities & Animations --- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.font-semibold { font-weight: 600; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

/* Scroll Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Print Styles */
@media print {
  .site-header, .site-footer, .back-to-top, .mobile-drawer, .mobile-overlay {
    display: none !important;
  }
  body {
    color: #000 !important;
    background: #fff !important;
  }
}