/* ==========================================================================
   LAYOUT
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-16) 0;
}

@media (min-width: 768px) {
  .section {
    padding: var(--space-24) 0;
  }
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

.section-label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--text-4xl);
  }
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  max-width: 700px;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-light);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

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

.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);
}

/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-primary);
  transition: box-shadow var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-lg);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  letter-spacing: 0.05em;
}

.logo img {
  height: 32px;
  width: auto;
}

.nav {
  display: none;
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
  }
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  padding: 0;
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-primary);
  padding: var(--space-8) var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
}

.mobile-menu.active {
  transform: translateX(0);
}

@media (min-width: 1024px) {
  .mobile-menu {
    display: none;
  }
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.mobile-nav-link {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-white);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding-top: 72px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(45, 74, 124, 0.4) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(201, 162, 39, 0.1) 0%, transparent 40%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 800px;
  text-align: center;
  margin: 0 auto;
  padding: var(--space-12) 0;
}

.hero-eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

.hero-title {
  font-size: var(--text-4xl);
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: var(--text-5xl);
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: var(--text-6xl);
  }
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto var(--space-10);
  line-height: var(--leading-relaxed);
}

@media (min-width: 768px) {
  .hero-subtitle {
    font-size: var(--text-xl);
  }
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

/* ==========================================================================
   CONTEXT SECTION (The World Has Changed)
   ========================================================================== */

.context {
  background-color: var(--color-background-alt);
}

.context-grid {
  display: grid;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .context-grid {
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
  }
}

.context-aside {
  position: relative;
}

.pull-quote {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-dark);
  line-height: var(--leading-tight);
}

@media (min-width: 768px) {
  .pull-quote {
    font-size: var(--text-3xl);
    position: sticky;
    top: 120px;
  }
}

.context-content p {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  margin-bottom: var(--space-6);
  line-height: var(--leading-relaxed);
}

.context-content p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   RESPONSE SECTION (How Europe Must Respond)
   ========================================================================== */

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

.response-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-16);
}

.stakeholder-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .stakeholder-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .stakeholder-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.stakeholder-item {
  text-align: center;
  padding: var(--space-6);
}

.stakeholder-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-4);
  color: var(--color-accent);
}

.stakeholder-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
}

.stakeholder-desc {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

/* ==========================================================================
   WHAT WE DO SECTION
   ========================================================================== */

.what-we-do {
  background-color: var(--color-background-alt);
}

.what-we-do-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-16);
}

.feature-grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-card {
  background-color: var(--color-white);
  padding: var(--space-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-base);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 40px;
  height: 40px;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.feature-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.feature-desc {
  font-size: var(--text-base);
  color: var(--color-text-light);
  line-height: var(--leading-relaxed);
}

/* ==========================================================================
   HOW IT WORKS SECTION
   ========================================================================== */

.how-it-works {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.how-it-works .section-label {
  color: var(--color-accent);
}

.how-it-works .section-title {
  color: var(--color-white);
}

.how-it-works-intro {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-16);
}

.layer-grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .layer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.layer-card {
  background-color: var(--color-white);
  color: var(--color-text);
  padding: var(--space-8);
  border-radius: var(--radius-md);
}

.layer-icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.layer-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-2);
}

.layer-subtitle {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.layer-desc {
  font-size: var(--text-base);
  color: var(--color-text-light);
  margin-bottom: var(--space-6);
  line-height: var(--leading-relaxed);
}

.layer-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.layer-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.layer-feature strong {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

/* ==========================================================================
   DOMAINS SECTION
   ========================================================================== */

.domains {
  background-color: var(--color-background-alt);
}

.domains-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
}

.domain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .domain-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .domain-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.domain-card {
  background-color: var(--color-white);
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition-base);
}

.domain-card:hover {
  box-shadow: var(--shadow-md);
}

.domain-card.featured {
  border-color: var(--color-accent);
  border-width: 2px;
}

.domain-icon {
  width: 40px;
  height: 40px;
  color: var(--color-primary);
  margin: 0 auto var(--space-4);
}

.domain-card.featured .domain-icon {
  color: var(--color-accent);
}

.domain-title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
}

.domain-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent-dark);
  background-color: rgba(201, 162, 39, 0.15);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  margin-top: var(--space-2);
}

/* ==========================================================================
   WHY PONTIS SECTION
   ========================================================================== */

.why-pontis {
  background-color: var(--color-white);
}

.why-pontis-intro {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-16);
}

.advantage-grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .advantage-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.advantage-item {
  text-align: center;
}

@media (min-width: 768px) {
  .advantage-item {
    text-align: left;
  }
}

.advantage-icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .advantage-icon {
    margin: 0 0 var(--space-4);
  }
}

.advantage-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.advantage-desc {
  font-size: var(--text-base);
  color: var(--color-text-light);
  margin-bottom: var(--space-4);
  line-height: var(--leading-relaxed);
}

.advantage-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.advantage-list li {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  padding-left: var(--space-4);
  position: relative;
}

.advantage-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

/* ==========================================================================
   FOUNDER SECTION
   ========================================================================== */

.founder {
  background-color: var(--color-background-alt);
}

.founder-grid {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 768px) {
  .founder-grid {
    grid-template-columns: 300px 1fr;
    gap: var(--space-16);
  }
}

.founder-image-wrapper {
  max-width: 300px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .founder-image-wrapper {
    margin: 0;
  }
}

.founder-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.founder-name {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-2);
}

.founder-title {
  font-size: var(--text-lg);
  color: var(--color-accent);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-6);
}

.founder-bio {
  font-size: var(--text-base);
  color: var(--color-text-light);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.founder-bio p {
  margin-bottom: var(--space-4);
}

.founder-bio p:last-child {
  margin-bottom: 0;
}

.founder-education {
  margin-bottom: var(--space-6);
}

.founder-education-title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.founder-education-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.founder-education-list li {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.founder-linkedin {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.founder-linkedin:hover {
  color: var(--color-accent);
}

.founder-linkedin svg {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   FRONTLINE SECTION
   ========================================================================== */

.frontline {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

.frontline .section-label {
  color: var(--color-accent);
}

.frontline-content {
  max-width: 700px;
  margin: 0 auto;
}

.frontline-title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.frontline-subtitle {
  font-size: var(--text-xl);
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

.frontline-desc {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-10);
  line-height: var(--leading-relaxed);
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */

.contact {
  background-color: var(--color-background-alt);
}

.contact-grid {
  display: grid;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.contact-form-wrapper h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-3);
}

.contact-form-wrapper > p {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  margin-bottom: var(--space-8);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
}

.form-label .required {
  color: var(--color-error);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.15);
}

.form-input.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-error {
  font-size: var(--text-sm);
  color: var(--color-error);
  display: none;
}

.form-error.visible {
  display: block;
}

.form-submit {
  align-self: flex-start;
}

.form-message {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  display: none;
}

.form-message.success {
  display: block;
  background-color: rgba(5, 150, 105, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-message.error {
  display: block;
  background-color: rgba(220, 38, 38, 0.1);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

/* Contact Info */
.contact-info h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: color var(--transition-fast);
}

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

.social-link svg {
  width: 24px;
  height: 24px;
}

.contact-note {
  margin-top: var(--space-8);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: italic;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-12);
  }
}

.footer-brand .logo {
  margin-bottom: var(--space-4);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

.footer-title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

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

.footer-social {
  display: flex;
  gap: var(--space-4);
}

.footer-social a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

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

.footer-social svg {
  width: 24px;
  height: 24px;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 100ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 200ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 300ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 500ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(7) { transition-delay: 600ms; opacity: 1; transform: translateY(0); }

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.text-center {
  text-align: center;
}

.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;
}

/* Body scroll lock for mobile menu */
body.menu-open {
  overflow: hidden;
}