/* ============================================
   AI WITH US — Design System & Styles
   Aesthetic: Premium Editorial + Slow Tech
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Backgrounds */
  --bg-primary: #FAFAF7;
  --bg-secondary: #F2F0EC;
  --bg-dark: #1A1A18;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F7F6F3;

  /* Text */
  --text-primary: #1A1A18;
  --text-secondary: #6B6B63;
  --text-tertiary: #9A9A91;
  --text-inverse: #FAFAF7;
  --text-inverse-secondary: #B8B8AE;

  /* Accent — Deep Forest Green */
  --accent: #3B6B5A;
  --accent-light: #4D8570;
  --accent-subtle: rgba(59, 107, 90, 0.08);
  --accent-border: rgba(59, 107, 90, 0.2);

  /* Borders & Dividers */
  --border: #E8E6E1;
  --border-light: #F0EEEA;
  --border-dark: #2F2F2C;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(26, 26, 24, 0.04);
  --shadow-md: 0 4px 16px rgba(26, 26, 24, 0.06);
  --shadow-lg: 0 8px 32px rgba(26, 26, 24, 0.08);
  --shadow-xl: 0 16px 48px rgba(26, 26, 24, 0.10);

  /* Typography Scale */
  --font-serif: 'Playfair Display', 'Georgia', serif;
  --font-sans: 'Inter', 'Helvetica Neue', sans-serif;

  --fs-hero: clamp(3rem, 6vw, 5.5rem);
  --fs-h1: clamp(2.2rem, 4vw, 3.5rem);
  --fs-h2: clamp(1.8rem, 3vw, 2.5rem);
  --fs-h3: clamp(1.3rem, 2vw, 1.6rem);
  --fs-body: 1.05rem;
  --fs-body-lg: 1.2rem;
  --fs-small: 0.875rem;
  --fs-caption: 0.8rem;
  --fs-label: 0.75rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
  --space-4xl: 12rem;

  /* Layout */
  --max-width: 1280px;
  --max-width-narrow: 860px;
  --nav-height: 72px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 700ms;

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


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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol { list-style: none; }

::selection {
  background: var(--accent);
  color: var(--text-inverse);
}


/* ---------- Utility / Layout ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.section {
  padding: var(--space-3xl) 0;
}

.section--dark {
  background-color: var(--bg-dark);
  color: var(--text-inverse);
}

.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;
}

/* Reveal animation utility */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-label {
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background-color: var(--accent);
}

.section-label--inverse {
  color: var(--text-inverse-secondary);
}

.section-label--inverse::before {
  background-color: var(--text-inverse-secondary);
}

.section-title {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-md);
  max-width: 720px;
}

.section-subtitle {
  font-size: var(--fs-body-lg);
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 600px;
}

.section-subtitle--inverse {
  color: var(--text-inverse-secondary);
}


/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(250, 250, 247, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out);
}

.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(250, 250, 247, 0.95);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.nav__logo-mark {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.nav__logo-mark::after {
  content: '';
  width: 14px;
  height: 14px;
  border: 2px solid var(--text-inverse);
  border-radius: 50%;
  position: absolute;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width var(--duration-normal) var(--ease-out);
}

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

.nav__link:hover::after {
  width: 100%;
}

.nav__cta {
  font-size: var(--fs-small);
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 100px;
  background: var(--text-primary);
  color: var(--text-inverse);
  transition: all var(--duration-fast) var(--ease-out);
}

.nav__cta:hover {
  background: var(--accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--duration-fast) var(--ease-out);
}

/* Mobile menu */
.nav__mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  padding: var(--space-xl) var(--space-lg);
  flex-direction: column;
  gap: var(--space-md);
  z-index: 999;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.nav__mobile-menu.open {
  opacity: 1;
  transform: translateY(0);
}

.nav__mobile-link {
  font-family: var(--font-serif);
  font-size: var(--fs-h3);
  color: var(--text-primary);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
}


/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-xl);
  padding: var(--space-3xl) 0;
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__eyebrow {
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.hero__eyebrow-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2.5s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero__title {
  font-size: var(--fs-hero);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  font-weight: 700;
}

.hero__title em {
  font-style: italic;
  color: var(--accent);
}

.hero__description {
  font-size: var(--fs-body-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: var(--space-xl);
}

.hero__actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-small);
  padding: 16px 32px;
  border-radius: 100px;
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

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

.btn--primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(59, 107, 90, 0.25);
}

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}

.btn--secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn__arrow {
  transition: transform var(--duration-fast) var(--ease-out);
  font-size: 1.1em;
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

/* Hero Visual */
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 500px;
}

.hero__geo {
  position: relative;
  width: 420px;
  height: 420px;
}

/* Geometric animation - harmony circles */
.geo-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.geo-ring--1 {
  width: 380px;
  height: 380px;
  border-color: rgba(59, 107, 90, 0.12);
  animation: rotate-ring 40s linear infinite;
}

.geo-ring--2 {
  width: 280px;
  height: 280px;
  border-color: rgba(59, 107, 90, 0.18);
  animation: rotate-ring 30s linear infinite reverse;
}

.geo-ring--3 {
  width: 180px;
  height: 180px;
  border-color: rgba(59, 107, 90, 0.25);
  animation: rotate-ring 20s linear infinite;
}

.geo-ring::before {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
}

.geo-ring--2::before {
  width: 6px;
  height: 6px;
  top: auto;
  bottom: -3px;
  background: var(--text-tertiary);
}

.geo-ring--3::before {
  width: 10px;
  height: 10px;
  top: 50%;
  left: -5px;
  transform: translateY(-50%);
  background: var(--accent);
  opacity: 0.6;
}

.geo-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  background: var(--accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px rgba(59, 107, 90, 0.2);
}

.geo-center::after {
  content: '';
  width: 24px;
  height: 24px;
  border: 2.5px solid var(--text-inverse);
  border-radius: 50%;
}

/* Floating data nodes */
.geo-node {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: var(--fs-caption);
  color: var(--text-secondary);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  animation: float-node 6s ease-in-out infinite;
}

.geo-node--1 {
  top: 10%;
  right: -10%;
  animation-delay: 0s;
}

.geo-node--2 {
  bottom: 15%;
  left: -5%;
  animation-delay: 2s;
}

.geo-node--3 {
  top: 50%;
  right: -20%;
  animation-delay: 4s;
}

.geo-node__label {
  font-weight: 600;
  color: var(--accent);
  font-size: var(--fs-label);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

@keyframes rotate-ring {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes float-node {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Subtle grid pattern behind hero */
.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-light) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.5;
  mask-image: radial-gradient(ellipse 70% 60% at 70% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 70% 50%, black 20%, transparent 70%);
  z-index: 0;
}


/* ============================================
   MANIFESTO / PILLARS SECTION
   ============================================ */
.manifesto {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.manifesto__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.manifesto__header .section-title {
  margin-left: auto;
  margin-right: auto;
}

.manifesto__header .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.manifesto__header .section-label {
  justify-content: center;
}

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.pillar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.pillar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-out);
}

.pillar:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-border);
}

.pillar:hover::before {
  transform: scaleX(1);
}

.pillar__number {
  font-family: var(--font-serif);
  font-size: var(--fs-h1);
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  margin-bottom: var(--space-md);
  transition: color var(--duration-normal) var(--ease-out);
}

.pillar:hover .pillar__number {
  color: var(--accent-border);
}

.pillar__icon {
  width: 48px;
  height: 48px;
  background: var(--accent-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.pillar__icon svg {
  width: 24px;
  height: 24px;
  color: var(--accent);
}

.pillar__title {
  font-size: var(--fs-h3);
  margin-bottom: var(--space-xs);
}

.pillar__tag {
  font-size: var(--fs-caption);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

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


/* ============================================
   KNOWLEDGE HUB / INSIGHTS SECTION
   ============================================ */
.insights__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
}

.insights__header-right {
  flex-shrink: 0;
}

.insights__link {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--duration-fast) var(--ease-out);
}

.insights__link:hover {
  gap: 10px;
}

.insights__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.insight-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  transition: all var(--duration-normal) var(--ease-out);
  display: flex;
  flex-direction: column;
}

.insight-card:first-child {
  grid-row: span 2;
}

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

.insight-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.insight-card:first-child .insight-card__image {
  aspect-ratio: 4 / 3;
}

.insight-card__image-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.15;
}

.insight-card__body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.insight-card__category {
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.insight-card__title {
  font-size: var(--fs-h3);
  line-height: 1.3;
  margin-bottom: var(--space-sm);
  transition: color var(--duration-fast) var(--ease-out);
}

.insight-card:hover .insight-card__title {
  color: var(--accent);
}

.insight-card__excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
  flex: 1;
}

.insight-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-caption);
  color: var(--text-tertiary);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-light);
}


/* ============================================
   FRAMEWORKS / RESOURCES SECTION
   ============================================ */
.frameworks {
  background: var(--bg-dark);
  color: var(--text-inverse);
  position: relative;
  overflow: hidden;
}

.frameworks__bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(59, 107, 90, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(59, 107, 90, 0.05) 0%, transparent 50%);
}

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

.frameworks__header {
  margin-bottom: var(--space-2xl);
}

.frameworks__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.framework-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.framework-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(59, 107, 90, 0.08) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.framework-card:hover {
  border-color: rgba(59, 107, 90, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.framework-card:hover::before {
  opacity: 1;
}

.framework-card__content {
  position: relative;
  z-index: 1;
}

.framework-card__icon {
  width: 56px;
  height: 56px;
  background: rgba(59, 107, 90, 0.15);
  border: 1px solid rgba(59, 107, 90, 0.25);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.framework-card__icon svg {
  width: 28px;
  height: 28px;
  color: var(--accent-light);
}

.framework-card__type {
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: var(--space-xs);
}

.framework-card__title {
  font-size: var(--fs-h3);
  color: var(--text-inverse);
  margin-bottom: var(--space-sm);
}

.framework-card__description {
  color: var(--text-inverse-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: var(--space-lg);
}

.framework-card__action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--accent-light);
  padding: 12px 24px;
  border: 1px solid rgba(59, 107, 90, 0.3);
  border-radius: 100px;
  transition: all var(--duration-fast) var(--ease-out);
}

.framework-card__action:hover {
  background: rgba(59, 107, 90, 0.15);
  border-color: var(--accent-light);
  gap: 12px;
}


/* ============================================
   NEWSLETTER / CTA BAND
   ============================================ */
.newsletter {
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.newsletter__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
}

.newsletter__content {
  max-width: 480px;
}

.newsletter__title {
  font-size: var(--fs-h2);
  margin-bottom: var(--space-xs);
}

.newsletter__subtitle {
  color: var(--text-secondary);
  font-size: var(--fs-body);
}

.newsletter__form {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.newsletter__input {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  padding: 16px 24px;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  background: var(--bg-card);
  color: var(--text-primary);
  width: 320px;
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-out);
}

.newsletter__input::placeholder {
  color: var(--text-tertiary);
}

.newsletter__input:focus {
  border-color: var(--accent);
}

.newsletter__submit {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-small);
  padding: 16px 32px;
  border-radius: 100px;
  background: var(--text-primary);
  color: var(--text-inverse);
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-out);
}

.newsletter__submit:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(59, 107, 90, 0.2);
}


/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-dark);
  color: var(--text-inverse);
  padding: var(--space-3xl) 0 var(--space-lg);
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--border-dark);
}

.footer__brand-description {
  color: var(--text-inverse-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-top: var(--space-md);
  max-width: 320px;
}

.footer__col-title {
  font-family: var(--font-sans);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-inverse-secondary);
  margin-bottom: var(--space-md);
}

.footer__link {
  display: block;
  font-size: var(--fs-small);
  color: var(--text-inverse-secondary);
  padding: 6px 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__link:hover {
  color: var(--text-inverse);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-lg);
  font-size: var(--fs-caption);
  color: var(--text-inverse-secondary);
}

.footer__legal {
  display: flex;
  gap: var(--space-md);
}


/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-xl);
  }

  .hero__description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__visual {
    min-height: 350px;
  }

  .hero__geo {
    width: 320px;
    height: 320px;
  }

  .geo-ring--1 { width: 300px; height: 300px; }
  .geo-ring--2 { width: 220px; height: 220px; }
  .geo-ring--3 { width: 140px; height: 140px; }

  .geo-node--1 { right: 5%; }
  .geo-node--3 { right: -5%; }

  .pillars {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }

  .insights__grid {
    grid-template-columns: 1fr;
  }

  .insight-card:first-child {
    grid-row: span 1;
  }

  .insight-card:first-child .insight-card__image {
    aspect-ratio: 16 / 9;
  }

  .frameworks__grid {
    grid-template-columns: 1fr;
  }

  .newsletter__inner {
    flex-direction: column;
    text-align: center;
  }

  .newsletter__form {
    flex-direction: column;
    width: 100%;
    max-width: 440px;
  }

  .newsletter__input {
    width: 100%;
  }

  .footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer__brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  :root {
    --space-3xl: 5rem;
    --space-2xl: 3.5rem;
  }

  .nav__links {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__mobile-menu {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + var(--space-xl));
    padding-bottom: var(--space-xl);
  }

  .hero__visual {
    min-height: 280px;
  }

  .hero__geo {
    width: 260px;
    height: 260px;
  }

  .geo-ring--1 { width: 240px; height: 240px; }
  .geo-ring--2 { width: 180px; height: 180px; }
  .geo-ring--3 { width: 120px; height: 120px; }

  .geo-node { display: none; }

  .insights__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .footer__top {
    grid-template-columns: 1fr;
  }

  .footer__brand {
    grid-column: span 1;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-sm);
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    justify-content: center;
    width: 100%;
  }

  .newsletter__form {
    gap: var(--space-xs);
  }
}


/* ============================================
   DECORATIVE PATTERNS (SVG in CSS)
   ============================================ */
.pattern-grid {
  background-image:
    linear-gradient(rgba(59, 107, 90, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 107, 90, 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
}

.pattern-dots {
  background-image: radial-gradient(rgba(59, 107, 90, 0.12) 1px, transparent 1px);
  background-size: 24px 24px;
}

.pattern-lines {
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(59, 107, 90, 0.04) 10px,
    rgba(59, 107, 90, 0.04) 11px
  );
}