/* SnapFlow Base Stylesheet (Shared) */

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

/* SHARED ROOT VARIABLES (Common to all pages) */
:root {
  --primary: #0982dd;
  --primary-light: #dbebf6;
  --dark-text: #111827;
  --muted-text: #6b7280;
  --border-color: #d1d5db;
  --bg-light: #f1f5f9;
  --white: #ffffff;
  --dark-bg: #111827;
  --font-main: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* HTML & BODY */
html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  color: var(--dark-text);
  background-color: var(--white);
  line-height: 1.5;
}

body {
  overflow-x: hidden;
}

/* CONTAINER */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(209, 213, 219, 0.5);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-box {
  width: 36px;
  height: 36px;
  background-color: var(--primary);
  color: var(--white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.125rem;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--dark-text);
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-item>a {
  text-decoration: none;
  color: var(--dark-text);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s ease;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.nav-item>a:hover,
.nav-item>a.active {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-arrow {
  font-size: 0.65rem;
  transition: transform 0.2s ease;
  display: inline-block;
}

.nav-item:hover .nav-arrow,
.nav-item:focus-within .nav-arrow,
.nav-item.is-open .nav-arrow {
  transform: rotate(180deg);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(9, 130, 221, 0.12);
  min-width: 200px;
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 100;
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown,
.nav-item.is-open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--dark-text);
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav-dropdown a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.nav-dropdown-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-text);
  padding: 0.5rem 1rem 0.25rem 1rem;
}

/* NAV TOGGLE (Desktop hidden) */
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  position: relative;
  color: var(--dark-text);
}

/* FOOTER */
footer {
  background-color: var(--dark-bg);
  color: var(--white);
  border-top: 1px solid #1f2937;
  padding: 4rem 0 2rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-tagline {
  color: #9ca3af;
  font-size: 0.95rem;
  max-width: 300px;
}

.footer-copy {
  color: #6b7280;
  font-size: 0.85rem;
  margin-top: 1rem;
}

.footer-links-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links-col a {
  color: var(--white);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.footer-links-col a:hover {
  color: var(--primary);
}

/* MOBILE MEDIA QUERY (<= 768px) */
@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  /* Hamburger toggle button */
  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
  }

  .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--dark-text);
    border-radius: 2px;
    transition: transform 180ms ease-out, opacity 180ms ease-out;
  }

  /* Hamburger morph to X when navbar is open */
  .navbar.is-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .navbar.is-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .navbar.is-open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Mobile Nav Panel */
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem 1.25rem;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 180ms ease-out, transform 180ms ease-out, visibility 180ms ease-out;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  }

  .navbar.is-open .nav-links {
    visibility: visible;
    opacity: 1;
    transform: none;
  }

  .nav-item {
    width: 100%;
  }

  .nav-item>a {
    min-height: 44px;
    padding: 0.75rem;
    font-size: 1rem;
    border-radius: 8px;
  }

  /* Dropdowns always expanded inline on mobile */
  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    min-width: 0;
    padding: 0 0 0.5rem 0.75rem;
    transition: none;
  }

  .nav-dropdown a {
    min-height: 44px;
    padding: 0.75rem;
    font-size: 0.92rem;
  }

  .nav-dropdown-label {
    display: none;
  }

  .nav-arrow {
    display: none;
  }
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  .nav-links,
  .nav-toggle span,
  .nav-dropdown,
  .nav-arrow {
    transition: none !important;
  }
}