@font-face {
  font-family: 'Coconut Services';
  src: url('/coconut-services.ttf') format('truetype');
  font-display: swap;
}

/* ---- Design System Tokens ---- */
:root {
  /* Colors */
  --color-navy: #101820;
  --color-brown: #744F28;
  --color-gray: #7E8389;
  --color-light: #E5E1E6;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f8f8;
  --color-bg-hover: #eeeded;
  --color-bg-msg: #f4f3f5;
  --color-bg-toolbar: #fafafa;
  --color-danger: #c0392b;
  --color-success: #27ae60;
  --color-muted: #b0b0b0;
  --color-code-bg: #1e1e1e;
  --color-code-fg: #d4d4d4;

  /* Fonts */
  --font-brand: 'Coconut Services', 'Montserrat', sans-serif;
  --font-body: 'Montserrat', sans-serif;
  --font-mono: 'Courier New', monospace;

  /* Font weights */
  --fw-light: 300;
  --fw-medium: 500;
  --fw-bold: 700;

  /* Border radius */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-xl: 12px;

  /* Spacing */
  --space-xs: 0.2rem;
  --space-sm: 0.4rem;
  --space-md: 0.8rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;

  /* Transitions */
  --transition: 0.3s ease;
}

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

body {
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  font-family: var(--font-body);
  color: var(--color-navy);
  overflow: hidden;
}

/* Header */
header {
  width: 100%;
  display: flex;
  align-items: center;
  padding: 1.2rem var(--space-xl);
  border-bottom: 2px solid var(--color-brown);
  position: relative;
  z-index: 200;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

header .brand {
  font-family: var(--font-brand);
  font-size: 1.4rem;
  color: var(--color-navy);
  letter-spacing: normal;
  position: relative;
  top: 4px;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 0.5rem;
}

nav a {
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: 0.85rem;
  padding: var(--space-sm) 1rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
  color: var(--color-gray);
}

nav a:hover {
  color: var(--color-navy);
}

nav a.active {
  background-color: var(--color-brown);
  color: var(--color-bg);
}

/* Nav Dropdown */
.nav-dropdown {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 150px;
  z-index: 50;
  padding-top: 6px;
  background-color: transparent;
}

.nav-dropdown-menu::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
}

.nav-dropdown-menu-inner {
  background-color: var(--color-bg);
  border: 1px solid var(--color-light);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  padding: var(--space-xs) 0;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  display: block;
}

.nav-dropdown-item {
  display: block;
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: 0.8rem;
  color: var(--color-gray);
  padding: var(--space-sm) 1rem;
  transition: background-color 0.2s, color 0.2s;
}

.nav-dropdown-item:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-navy);
}

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-switch {
  display: none; /* hidden for now */
  gap: 0.3rem;
}

.lang-switch a {
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: 0.75rem;
  color: var(--color-gray);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.lang-switch a:hover {
  color: var(--color-navy);
}

.lang-switch a.active {
  color: var(--color-brown);
  font-weight: var(--fw-bold);
}

.lang-switch a.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.lang-separator {
  color: var(--color-light);
  font-size: 0.75rem;
}

.login-btn {
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: 0.85rem;
  padding: var(--space-sm) 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-navy);
  color: var(--color-navy);
  transition: background-color var(--transition), color var(--transition);
}

.login-btn:hover {
  background-color: var(--color-navy);
  color: var(--color-bg);
}

.user-account {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: 0.5rem;
  padding-left: var(--space-md);
  border-left: 1px solid var(--color-light);
}

.user-email {
  font-size: 0.75rem;
  font-weight: var(--fw-medium);
  color: var(--color-navy);
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.logout-btn {
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: 0.7rem;
  color: var(--color-gray);
  padding: var(--space-xs) 0.5rem;
  border: 1px solid var(--color-light);
  border-radius: var(--radius-sm);
  transition: color var(--transition), border-color var(--transition);
}

.logout-btn:hover {
  color: var(--color-navy);
  border-color: var(--color-navy);
}

/* Container */
.container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-lg);
}

h1 {
  font-size: 2rem;
  font-weight: var(--fw-bold);
  letter-spacing: normal;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  color: var(--color-navy);
}

h1.brand-title {
  font-family: var(--font-brand);
  font-size: 2.8rem;
}

.divider {
  width: 60px;
  height: 3px;
  background-color: var(--color-brown);
  margin: 0 auto 1.2rem;
  border-radius: 2px;
}

p {
  font-size: 1.05rem;
  font-weight: var(--fw-light);
  color: var(--color-gray);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

/* IA Hub */
.ia-hub {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
}

.ia-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  padding: var(--space-xl) var(--space-xl) var(--space-lg);
  border: 2px solid var(--color-light);
  border-radius: var(--radius-xl);
  width: 260px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  color: var(--color-navy);
}

.ia-card:hover {
  border-color: var(--color-brown);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.ia-card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-lg);
  color: var(--color-brown);
}

.ia-card-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.ia-card-title {
  font-size: 1.1rem;
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-sm);
}

.ia-card-desc {
  font-size: 0.85rem;
  font-weight: var(--fw-light);
  color: var(--color-gray);
  line-height: 1.5;
}

/* Footer */
footer {
  width: 100%;
  text-align: center;
  padding: 1rem;
  font-size: 0.75rem;
  color: var(--color-gray);
  border-top: 1px solid var(--color-light);
}

footer span {
  margin: 0 var(--space-sm);
  color: var(--color-brown);
}

/* Responsive - Tablet */
@media (max-width: 768px) {
  header {
    padding: var(--space-md) 1rem;
  }

  .header-left {
    gap: 1rem;
  }

  h1 {
    font-size: 1.6rem;
  }

  .ia-card {
    width: 220px;
    padding: var(--space-lg) var(--space-lg) var(--space-md);
  }

  .ia-card-icon {
    width: 40px;
    height: 40px;
  }

  .ia-card-title {
    font-size: 1rem;
  }

  .ia-card-desc {
    font-size: 0.8rem;
  }
}

/* Responsive - Mobile */
@media (max-width: 480px) {
  header {
    padding: 0.6rem 0.75rem;
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  header .brand {
    font-size: 0.9rem;
  }

  .header-left {
    width: 100%;
    gap: 0.6rem;
  }

  nav {
    gap: var(--space-xs);
  }

  nav a {
    font-size: 0.65rem;
    padding: 0.25rem 0.5rem;
  }

  .header-right {
    width: 100%;
    justify-content: flex-end;
    gap: 0.5rem;
  }

  .login-btn {
    font-size: 0.65rem;
    padding: 0.25rem 0.5rem;
  }

  .lang-switch a {
    font-size: 0.6rem;
  }

  .lang-separator {
    font-size: 0.6rem;
  }

  .user-account {
    margin-left: 0.3rem;
    padding-left: 0.5rem;
    gap: 0.3rem;
  }

  .user-email {
    font-size: 0.55rem;
    max-width: 80px;
  }

  .logout-btn {
    font-size: 0.55rem;
    padding: 0.15rem 0.35rem;
  }

  /* Dropdown: on mobile, tap opens it */
  .nav-dropdown-menu {
    min-width: 130px;
  }

  .nav-dropdown-item {
    font-size: 0.7rem;
    padding: var(--space-sm) var(--space-md);
  }

  h1 {
    font-size: 1.2rem;
  }

  p {
    font-size: 0.9rem;
  }

  /* Hub: cards stacked */
  .ia-hub {
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
  }

  .ia-card {
    width: 100%;
    max-width: 280px;
    padding: var(--space-lg) var(--space-lg) var(--space-md);
  }

  .ia-card-icon {
    width: 36px;
    height: 36px;
    margin-bottom: var(--space-md);
  }

  .ia-card-title {
    font-size: 0.95rem;
  }

  .ia-card-desc {
    font-size: 0.75rem;
  }

  footer {
    font-size: 0.6rem;
    padding: 0.6rem;
  }
}