/* ==========================================================================
   PINNACLE GLOBAL ACADEMY - MAIN DESIGN SYSTEM & FOUNDATION
   Colors: #0B3D2E (Primary), #176B45 (Secondary), #B7E84B (Accent),
           #F1F8F1 (Light BG), #FFFFFF, #142B3B (Dark Navy), #52616B (Body Text)
   ========================================================================== */

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

:root {
  /* Color Tokens */
  --color-primary: #0B3D2E;
  --color-primary-dark: #07261D;
  --color-secondary: #176B45;
  --color-secondary-light: #229963;
  --color-accent: #B7E84B;
  --color-accent-hover: #A5D63B;
  --color-accent-soft: rgba(183, 232, 75, 0.15);
  --color-light-bg: #F1F8F1;
  --color-light-bg-soft: #F8FCF8;
  --color-white: #FFFFFF;
  --color-dark-navy: #142B3B;
  --color-body: #52616B;
  --color-body-dark: #2F3B43;
  --color-border: #E3EAE5;
  --color-border-dark: #C9D9CD;
  --color-warning-bg: #FFFBEB;
  --color-warning-border: #FCD34D;
  --color-warning-text: #92400E;
  --color-success: #10B981;
  --color-error: #EF4444;

  /* Typography */
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing Scale */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* Elevation & Shadows */
  --shadow-sm: 0 1px 3px rgba(11, 61, 46, 0.05), 0 1px 2px rgba(11, 61, 46, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(11, 61, 46, 0.07), 0 2px 4px -2px rgba(11, 61, 46, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(11, 61, 46, 0.08), 0 4px 6px -4px rgba(11, 61, 46, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(11, 61, 46, 0.1), 0 8px 10px -6px rgba(11, 61, 46, 0.05);
  --shadow-card-hover: 0 16px 32px -4px rgba(11, 61, 46, 0.12), 0 6px 12px -3px rgba(11, 61, 46, 0.08);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Layout */
  --container-max: 1320px;
  --container-narrow: 880px;
  --header-height: 84px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Zero-Overflow Foundation */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  max-width: 100%;
  overflow-x: hidden;
  position: relative;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-body);
  background-color: var(--color-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: 100%;
  overflow-x: hidden;
  position: relative;
  margin: 0;
  padding: 0;
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--color-accent);
  color: var(--color-primary);
  padding: 10px 18px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  z-index: 99999;
  transition: top var(--transition-fast);
  text-decoration: none;
}
.skip-link:focus {
  top: 15px;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-dark-navy);
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

h1 {
  font-size: clamp(2.1rem, 4vw, 3.25rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  letter-spacing: -0.015em;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

h4 {
  font-size: 1.15rem;
}

p {
  margin-bottom: var(--space-md);
}

p.lead {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-body-dark);
}

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

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

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

.btn svg,
.nav-link svg,
.top-bar-item svg,
.top-bar-cta svg,
.badge svg {
  display: inline-block;
  flex-shrink: 0;
  vertical-align: middle;
}

ul, ol {
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

li {
  margin-bottom: var(--space-xs);
}

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

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

.section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  position: relative;
}

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

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

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

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

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--space-2xl) auto;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-secondary);
  background-color: var(--color-light-bg);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
  border: 1px solid var(--color-border);
}

.section-bg-dark .eyebrow {
  color: var(--color-accent);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(183, 232, 75, 0.3);
}

.section-subtitle {
  font-size: 1.08rem;
  color: var(--color-body);
}

.section-bg-dark .section-subtitle {
  color: rgba(241, 248, 241, 0.85);
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-normal);
  line-height: 1.3;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(11, 61, 46, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(11, 61, 46, 0.28);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(183, 232, 75, 0.35);
}

.btn-accent:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(183, 232, 75, 0.45);
}

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

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

/* Editable Client Placeholder Notice Badge */
.placeholder-notice {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background-color: var(--color-warning-bg);
  border: 1px dashed var(--color-warning-border);
  color: var(--color-warning-text);
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.3;
}

.placeholder-notice svg {
  flex-shrink: 0;
}

/* Card Foundations */
.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-secondary-light);
}

/* Grid Layout Utilities */
.grid {
  display: grid;
  gap: var(--space-xl);
}

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

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

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

/* Breadcrumbs */
.breadcrumbs {
  padding: var(--space-md) 0;
  background-color: var(--color-light-bg-soft);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.88rem;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: var(--space-xs);
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  margin: 0;
}

.breadcrumbs li::after {
  content: "›";
  margin-left: var(--space-xs);
  color: var(--color-body);
}

.breadcrumbs li:last-child::after {
  content: "";
}

.breadcrumbs a {
  color: var(--color-body);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.breadcrumbs li[aria-current="page"] {
  color: var(--color-primary);
  font-weight: 600;
}

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