:root {
  --color-bg: #FCFCFB;
  --color-bg-alt: #F5F5F4;
  --color-text: #0A0A0A;
  --color-text-secondary: #555555;
  --color-border: #E0E0E0;
  --color-accent: #0A0A0A;
  --color-accent-hover: #333333;
  --shadow-ambient: 0 4px 12px rgba(0, 0, 0, 0.04);
  --transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  --radius: 12px;
  --container-width: 1100px;
  --spacing-xs: 0.75rem;
  --spacing-sm: 1.5rem;
  --spacing-md: 3rem;
  --spacing-lg: 5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--spacing-sm);
}

h3 {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
}

p {
  max-width: 65ch;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-secondary);
  font-weight: 400;
  font-size: 1.05rem;
}

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

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

.container {
  width: min(92%, var(--container-width));
  margin-inline: auto;
}

/* Buttons */
.btn {
  display: inline-block;
  background: var(--color-accent);
  color: white;
  padding: 0.875rem 1.75rem;
  border-radius: 50rem;
  font-family: 'Manrope', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

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

.btn-secondary:hover {
  border-color: var(--color-accent);
  background: rgba(0, 0, 0, 0.02);
  transform: translateY(-2px);
}

section {
  padding-block: var(--spacing-lg);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.section-header h2 {
  margin-bottom: 0;
}

.section-subtitle {
  margin-top: 1rem;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 60ch;
  margin-inline: auto;
  text-align: center;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(252, 252, 251, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding-block: 1rem;
  transition: all 0.3s ease;
  border-bottom: 1px solid transparent;
}

header.scrolled {
  padding-block: 0.75rem;
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 56px;
  width: auto;
}

@media (max-width: 768px) {
  .logo img {
    height: 42px;
  }
}

.nav-links {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.2s ease;
  color: var(--color-text-secondary);
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform 0.3s ease;
  transform-origin: right;
}

.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all 0.2s ease;
}

.lang-btn:hover {
  border-color: var(--color-accent);
  background: white;
}

.lang-flag {
  font-size: 1.1rem;
  line-height: 1;
}

.lang-code {
  font-weight: 600;
}

.lang-arrow {
  transition: transform 0.2s ease;
}

.lang-switcher.open .lang-arrow {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 140px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease;
  z-index: 200;
  overflow: hidden;
}

.lang-switcher.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: background 0.15s ease;
}

.lang-option:hover {
  background: var(--color-bg-alt);
}

.lang-option.active {
  background: rgba(10, 10, 10, 0.06);
  font-weight: 600;
}

.lang-option .lang-flag {
  font-size: 1.2rem;
}

/* ===== HERO ===== */
.hero {
  padding: var(--spacing-lg) 0 calc(var(--spacing-lg) * 1.3);
  position: relative;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 750px;
  margin-inline: auto;
}

.hero h1 {
  margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 50ch;
  margin-inline: auto;
  margin-bottom: var(--spacing-md);
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== PROBLEM SECTION ===== */
.problem {
  background: var(--color-bg-alt);
}

.problem-content {
  max-width: 700px;
  margin-inline: auto;
}

.problem-content h2 {
  text-align: center;
}

.problem-body {
  margin-top: var(--spacing-sm);
}

.problem-body p {
  max-width: none;
  text-align: center;
  margin-inline: auto;
}

.problem-body p + p {
  margin-top: 0.5rem;
}

.problem-highlight {
  font-weight: 500;
  color: var(--color-text);
}

/* ===== WHAT WE DO ===== */
.what-we-do-content {
  max-width: 700px;
  margin-inline: auto;
  text-align: center;
}

.what-we-do-content p {
  max-width: none;
  margin-inline: auto;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  background: var(--color-bg-alt);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: var(--spacing-md);
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all 0.3s ease;
}

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

.card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  color: white;
  border-radius: 50%;
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
}

.card h3 {
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.card p {
  max-width: none;
  font-size: 1rem;
}

/* ===== FOUNDERS ===== */
.founders-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  margin-top: var(--spacing-md);
}

.founder {
  text-align: center;
}

.founder-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-text-secondary);
  border: 2px solid var(--color-border);
}

.founder-avatar-img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--spacing-sm);
  border: 2px solid var(--color-border);
}

.founder h3 {
  margin-bottom: 0.25rem;
}

.founder-role {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.founder-bio {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 45ch;
  margin-inline: auto;
  margin-bottom: var(--spacing-sm);
}

.founder-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-accent);
  transition: all 0.2s ease;
}

.founder-link:hover {
  opacity: 0.7;
}

.founder-link svg {
  width: 18px;
  height: 18px;
}

/* ===== VISION ===== */
.vision {
  background: var(--color-bg-alt);
}

.vision-content {
  max-width: 700px;
  margin-inline: auto;
  text-align: center;
}

.vision-content p {
  max-width: none;
  margin-inline: auto;
}

/* ===== CONTACT ===== */
.contact-content {
  max-width: 600px;
  margin-inline: auto;
  text-align: center;
}

.contact-content p {
  max-width: none;
  margin-inline: auto;
}

.contact-email {
  display: inline-block;
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  margin: var(--spacing-sm) 0;
  color: var(--color-text);
  transition: opacity 0.2s ease;
}

.contact-email:hover {
  opacity: 0.6;
}

.contact-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-xs);
}

.contact-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

.contact-links a:hover {
  color: var(--color-text);
}

.contact-links svg {
  width: 18px;
  height: 18px;
}

/* ===== HIDDEN SECTIONS ===== */
.hidden-section {
  display: none;
}

/* ===== FOOTER ===== */
footer {
  background: var(--color-accent);
  color: rgba(255, 255, 255, 0.7);
  padding-block: var(--spacing-md);
  text-align: center;
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.footer-brand p {
  margin-bottom: 0;
  color: white;
  font-weight: 600;
}

.footer-address {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-contact {
  margin-top: 0.25rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 0.25rem;
}

footer a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
}

footer a:hover {
  color: white;
}

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 50;
  box-shadow: var(--shadow-ambient);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  color: var(--color-text);
}

/* ===== COOKIE BANNER ===== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #0A0A0A;
  color: #fff;
  padding: 1rem 1.5rem;
  z-index: 9999;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-content {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cookie-text {
  flex: 1;
  min-width: 280px;
}

.cookie-text strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.cookie-text p {
  margin: 0;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}

.cookie-text a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: underline;
}

.cookie-text a:hover {
  color: white;
}

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

.cookie-btn {
  padding: 0.625rem 1.25rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.cookie-btn-accept {
  background: white;
  color: #0A0A0A;
}

.cookie-btn-accept:hover {
  background: #E0E0E0;
}

.cookie-btn-reject {
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.cookie-btn-reject:hover {
  border-color: white;
  color: white;
}

/* ===== LEGAL PAGES ===== */
.legal-content {
  padding: var(--spacing-lg) 0;
}

.legal-body {
  max-width: 750px;
  margin-inline: auto;
}

.legal-body h2 {
  font-size: 1.35rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
}

.legal-body h2:first-child {
  margin-top: 0;
}

.legal-body p {
  max-width: none;
}

.legal-body ul {
  padding-left: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

.legal-body li {
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.legal-body li strong {
  color: var(--color-text);
}

.legal-body a {
  color: var(--color-accent);
  text-decoration: underline;
}

.legal-contact {
  background: var(--color-bg-alt);
  padding: 1.5rem;
  border-radius: var(--radius);
  margin: var(--spacing-xs) 0;
}

.legal-contact p {
  margin-bottom: 0.25rem;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-xs) 0;
}

.legal-table th,
.legal-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.legal-table th {
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-bg-alt);
}

.legal-table td {
  color: var(--color-text-secondary);
}

/* ===== SEPARATOR ===== */
.section-divider {
  width: 60px;
  height: 2px;
  background: var(--color-accent);
  margin: 0 auto var(--spacing-sm);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  :root {
    --spacing-lg: 3.5rem;
    --spacing-md: 2rem;
  }

  .nav-links {
    display: none;
  }

  .cards-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .founders-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .contact-email {
    font-size: 1.1rem;
  }

  .contact-links {
    flex-direction: column;
    align-items: center;
  }

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

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

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.85rem;
  }

  .card {
    padding: 1.5rem;
  }

  .founder-avatar {
    width: 100px;
    height: 100px;
    font-size: 2.5rem;
  }

  .back-to-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 42px;
    height: 42px;
  }
}