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

:root {
  /* legacy tokens still used by the side menu */
  --primary-brand: #3b82f6;
  --surface-bg: #ffffff;
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --border-light: #e5e7eb;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --transition-fast: 0.15s ease-out;
  --transition-std: 0.25s ease-out;

  /* Airy Flow header tokens (from the new design system) */
  --af-bg: #f9fafb;
  --af-text: #0f1b2d;
  --af-sub: #647592;
  --af-chip: #eef2f9;
  --af-brand: #2563eb;
  --af-header-h: 64px;
}

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

body {
  font-family: "Poppins", sans-serif;
  background-color: var(--af-bg);
  color: #1f2937;
  padding-top: calc(var(--af-header-h) + env(safe-area-inset-top, 0px));
  padding-bottom: 65px;
  line-height: 1.6;
}

/* ── Airy Flow app header ── */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: calc(var(--af-header-h) + env(safe-area-inset-top, 0px));
  background: var(--af-bg);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 18px;
  padding-top: env(safe-area-inset-top, 0px);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
  overflow: hidden;
  text-decoration: none;
}

.header-logo {
  height: 40px;
  width: auto;
  flex-shrink: 0;
}

.header-greeting {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  overflow: hidden;
}

.header-greeting .greeting-sub {
  font-size: 11px;
  font-weight: 500;
  color: var(--af-sub);
  line-height: 1.4;
}

.header-greeting .greeting-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--af-text);
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Header action icons ── */
.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.auth-buttons-container {
  display: flex;
  align-items: center;
}

.hdr-icon-btn,
.menu-button-style,
.auth-icon-btn {
  width: 42px;
  height: 42px;
  border: none;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  color: var(--af-text);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.15s ease;
  position: relative;
}

.hdr-icon-btn:hover,
.menu-button-style:hover,
.auth-icon-btn:hover {
  background: var(--af-chip);
}

.hdr-icon-btn:active,
.menu-button-style:active,
.auth-icon-btn:active {
  transform: scale(0.94);
}

.hdr-icon-btn svg,
.menu-button-style svg {
  width: 24px;
  height: 24px;
}

/* Account button keeps a soft brand tint so it reads as "you" */
.auth-icon-btn {
  background: #eaf1ff;
  color: var(--af-brand);
}

.auth-icon-btn:hover {
  background: #dbe7ff;
}

.auth-icon-btn i {
  font-size: 1.05rem;
}

/* ── Slide-in expanded menu (side menu) ── */
.expanded-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 320px;
  max-width: 86vw;
  height: 100vh;
  height: 100dvh;
  background: var(--surface-bg);
  box-shadow: var(--shadow-lg);
  padding: 1.5rem;
  padding-top: 4.5rem;
  transform: translateX(100%);
  transition: transform 0.3s var(--transition-std);
  z-index: 1100;
  overflow-y: auto;
}

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

.menu-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 12px;
  background: var(--af-chip);
  color: #dc2626;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.menu-close-btn:hover {
  background: #fde2e2;
  transform: scale(1.05);
}

.menu-close-btn svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.5;
}

.menu-items-container,
.menu-items {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.menu-item {
  padding: 0.8rem 1rem;
  color: var(--af-text);
  text-decoration: none;
  border-radius: 12px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  width: 100%;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
}

.menu-item:hover {
  background-color: var(--af-chip);
  color: var(--af-brand);
}

/* ── Dropdown groups inside the menu ── */
.menu-item-dropdown {
  display: flex;
  flex-direction: column;
}

.dropdown-icon {
  width: 16px;
  height: 16px;
  transition: transform 0.2s var(--transition-fast);
  flex-shrink: 0;
  margin-left: 0.5rem;
}

.dropdown-icon.open {
  transform: rotate(180deg);
}

.dropdown-content {
  display: none;
  padding-left: 1rem;
  margin-top: 0.25rem;
}

.dropdown-content.active {
  display: block;
}

.dropdown-item {
  display: block;
  padding: 0.6rem 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.dropdown-item:hover {
  background-color: rgba(37, 99, 235, 0.08);
  color: var(--af-brand);
}

/* ── Expanded-menu scrollbar ── */
.expanded-menu::-webkit-scrollbar {
  width: 6px;
}

.expanded-menu::-webkit-scrollbar-track {
  background: transparent;
}

.expanded-menu::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #cbd5e1 0%, #94a3b8 100%);
  border-radius: 10px;
}

.expanded-menu {
  scrollbar-width: thin;
  scrollbar-color: #cbd5e1 transparent;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  :root {
    --af-header-h: 58px;
  }

  body {
    padding-bottom: 60px;
  }

  .app-header {
    padding: 0 14px;
    padding-top: env(safe-area-inset-top, 0px);
  }

  .header-logo {
    height: 36px;
  }

  .header-greeting .greeting-name {
    font-size: 16px;
  }

  .hdr-icon-btn,
  .menu-button-style,
  .auth-icon-btn {
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 380px) {
  .header-greeting .greeting-sub {
    font-size: 10px;
  }

  .header-greeting .greeting-name {
    font-size: 15px;
  }
}