/* INFO-03 NOTE: The audit tool flagged 182 occurrences of the keyword "var" in dashboard.html.
 * These are all CSS custom property references — var(--token) — which is correct, modern CSS.
 * Zero (0) JavaScript `var` declarations exist in this codebase; all JS uses const/let already.
 * No code changes required for INFO-03. */

/* ── SCHOLARS HUB — SHARED STYLES ── */
/* Font loaded via <link> in each HTML <head> — @import removed (render-blocking) */

:root {
  --navy: #2D2D5E;
  --accent: #7878B4;
  --accent-dark: #4A4A8C;
  --lavender: #E1E1FF;
  --border: #D2D2F0;
  --bg: #F0F0FF;
  --white: #FFFFFF;
  --mid: #6B6B9A;
  --text-mid: #6B6B9A;
  --sky: #E8F4FD;
  --mint: #E8F8F0;
  --peach: #FDF0E8;
  --purple-soft: #F0E8FD;
  --card-shadow: 0 2px 8px rgba(120,120,180,0.08);
  --green: #22c55e;
  --amber: #f59e0b;
  --red: #ef4444;
  --purple-hl: #a855f7;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Switzer', 'Plus Jakarta Sans', sans-serif; background: var(--bg); color: var(--navy); }

/* ANIMATIONS */
@keyframes spin      { to { transform: rotate(360deg); } }
@keyframes fadeUp    { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn    { from { opacity:0; } to { opacity:1; } }
@keyframes slideDown { from { opacity:0; transform:translateY(-20px); } to { opacity:1; transform:translateY(0); } }
@keyframes slideUp   { from { opacity:0; transform:translateY(40px); } to { opacity:1; transform:translateY(0); } }
@keyframes pulse     { 0%,100% { transform:scale(1); } 50% { transform:scale(1.04); } }
@keyframes ripple    { to { transform:scale(3); opacity:0; } }
@keyframes modalIn   { from { opacity:0; transform:scale(0.94) translateY(16px); } to { opacity:1; transform:scale(1) translateY(0); } }
@keyframes barGrow   { from { width:0; } to { width:var(--w); } }
@keyframes float     { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-8px); } }

/* SHARED BUTTONS */
.btn-primary {
  background: var(--navy); color: white; border: none;
  padding: 11px 24px; border-radius: 10px;
  font-family: 'Switzer', 'Plus Jakarta Sans', sans-serif; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
}
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(45,45,94,0.25); }
.btn-primary:active { transform: translateY(0); }

.btn-accent {
  background: var(--accent); color: white; border: none;
  padding: 11px 24px; border-radius: 10px;
  font-family: 'Switzer', 'Plus Jakarta Sans', sans-serif; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; position: relative; overflow: hidden;
  display: inline-flex; align-items: center; text-decoration: none;
}
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(120,120,180,0.3); }

.btn-ghost {
  background: transparent; color: var(--navy); border: 1.5px solid var(--border);
  padding: 10px 24px; border-radius: 10px;
  font-family: 'Switzer', 'Plus Jakarta Sans', sans-serif; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; text-decoration: none; display: inline-block;
}
.btn-ghost:hover { background: var(--lavender); border-color: var(--accent); color: var(--accent); }

.card {
  background: var(--white); border-radius: 12px;
  box-shadow: var(--card-shadow); border: 1px solid var(--border);
  overflow: hidden; transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover { box-shadow: 0 6px 24px rgba(120,120,180,0.14); }

/* ACCESSIBILITY — focus-visible outline for keyboard users (WCAG 2.1 SC 1.4.11) */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.input-field {
  width: 100%; padding: 11px 14px;
  border: 1px solid var(--border); border-radius: 8px;
  font-family: 'Switzer', 'Plus Jakarta Sans', sans-serif; font-size: 14px; color: var(--navy);
  outline: none; transition: border-color 0.2s, box-shadow 0.2s; background: white;
}
.input-field:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(120,120,180,0.12); }

.badge { display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-sky    { background: var(--sky); color: var(--navy); }
.badge-mint   { background: var(--mint); color: #166534; }
.badge-peach  { background: var(--peach); color: #c05c00; }
.badge-purple { background: var(--lavender); color: var(--navy); }

/* RIPPLE */
.ripple-effect {
  position: absolute; border-radius: 50%;
  width: 60px; height: 60px;
  background: rgba(255,255,255,0.3);
  transform: scale(0);
  animation: ripple 0.5s linear;
  pointer-events: none;
}

/* SHARED NAV */
.top-nav {
  background: var(--white); border-bottom: 1px solid var(--border);
  padding: 0 60px; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100;
  transition: box-shadow 0.3s;
  animation: slideDown 0.4s ease;
}
.top-nav.scrolled { box-shadow: 0 4px 20px rgba(120,120,180,0.12); }
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo-mark {
  width: 36px; height: 36px; background: var(--navy); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 16px; font-weight: 800;
  transition: transform 0.2s;
}
.nav-logo:hover .nav-logo-mark { transform: rotate(8deg) scale(1.05); }
.nav-logo-text { font-size: 17px; font-weight: 700; color: var(--navy); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { text-decoration: none; font-size: 14px; font-weight: 500; color: var(--text-mid); transition: color 0.2s; }
.nav-links a:hover { color: var(--navy); }
.nav-links a.active { color: var(--accent); font-weight: 700; border-bottom: 2px solid var(--accent); padding-bottom: 2px; }

/* HAMBURGER — CSS controlled only */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 8px; background: none; border: none;
}
.hamburger span { width: 22px; height: 2px; background: var(--navy); border-radius: 2px; transition: all 0.3s; display: block; }

/* MOBILE MENU */
.mob-menu {
  display: none; position: fixed; inset: 0; background: var(--white);
  z-index: 300; flex-direction: column; padding: 80px 30px 30px;
  animation: fadeIn 0.2s ease;
}
.mob-menu.open { display: flex; }
.mob-menu a {
  font-size: 22px; font-weight: 600; color: var(--navy); text-decoration: none;
  padding: 14px 0; border-bottom: 1px solid var(--border); transition: color 0.2s;
}
.mob-menu a:hover { color: var(--accent); }
.mob-close { position: absolute; top: 20px; right: 20px; background: none; border: none; font-size: 28px; cursor: pointer; color: var(--navy); }

/* FOOTER */
.footer { background: var(--navy); color: rgba(255,255,255,0.7); padding: 48px 60px 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand-text { font-size: 13px; line-height: 1.7; margin-top: 12px; max-width: 260px; }
.footer-col-title { font-size: 12px; font-weight: 700; color: white; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,0.6); text-decoration: none; margin-bottom: 8px; transition: color 0.2s; }
.footer-col a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; font-size: 12px; }
.compliance-badges { display: flex; gap: 12px; flex-wrap: wrap; }
.cbadge { background: rgba(255,255,255,0.1); padding: 5px 12px; border-radius: 6px; font-size: 11px; color: rgba(255,255,255,0.8); font-weight: 500; }

/* COOKIE BANNER */
.cookie-banner {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--navy); color: white; padding: 14px 20px; border-radius: 12px;
  display: flex; align-items: center; gap: 16px; z-index: 400;
  box-shadow: 0 8px 32px rgba(45,45,94,0.3);
  animation: slideUp 0.4s ease; max-width: 520px; width: calc(100% - 40px);
  font-size: 13px; flex-wrap: wrap;
}
.cookie-banner.hidden { display: none; }
.cookie-btns { display: flex; gap: 8px; flex-shrink: 0; flex-wrap: wrap; }
.cookie-accept { padding: 7px 16px; border-radius: 8px; border: none; font-family: 'Switzer', 'Plus Jakarta Sans', sans-serif; font-size: 12px; font-weight: 600; cursor: pointer; background: var(--accent); color: white; transition: all 0.2s; }
.cookie-accept:hover { background: var(--accent-dark); }
.cookie-decline { padding: 7px 16px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.3); font-family: 'Switzer', 'Plus Jakarta Sans', sans-serif; font-size: 12px; font-weight: 600; cursor: pointer; background: transparent; color: white; transition: all 0.2s; }

/* SECTION EYEBROW — shared across all pages */
.section-eyebrow {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--accent); margin-bottom: 12px;
}

/* SCROLL REVEAL */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* LOW-04: Respect reduced-motion preference — disable all animations */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .top-nav { padding: 0 20px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .footer { padding: 40px 20px 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ===== ANIMATION SYSTEM — GRAMMARLY-STYLE ===== */

/* #34 Card hover micro-interactions */
.card, .feature-card, .step-card, .tier-card, .comp-badge, .blog-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover, .feature-card:hover, .step-card:hover, .tier-card:hover, .comp-badge:hover, .blog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(15,27,60,0.12);
}

/* #35 CTA button hover states */
.btn-primary {
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease !important;
}
.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 16px rgba(0,168,150,0.3);
  filter: brightness(1.08);
}

/* #36 Mobile menu slide animation */
.mob-menu {
  transition: max-height 0.25s ease-in-out, opacity 0.25s ease-in-out;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
}
.mob-menu.open {
  max-height: 600px;
  opacity: 1;
}

/* #37 Form field focus glow */
.form-input:focus, .form-textarea:focus {
  box-shadow: 0 0 0 3px rgba(0,168,150,0.25) !important;
  border-color: #00A896 !important;
  outline: none;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

/* #39 Skeleton loading shimmer */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* #40 FAQ accordion animation */
.faq-a {
  transition: max-height 0.35s ease, padding 0.3s ease, opacity 0.3s ease;
  opacity: 0;
}
.faq-item.open .faq-a {
  opacity: 1;
}

/* #41 Password strength bar transition */
#strength-fill {
  transition: width 300ms ease, background 300ms ease;
}

/* #44 Nav shadow on scroll */
.top-nav {
  transition: box-shadow 0.3s ease;
}
.top-nav.scrolled {
  box-shadow: 0 2px 12px rgba(15,27,60,0.08);
}

/* #43 Trust badge fade-in stagger */
.trust-badge-stagger {
  opacity: 0;
  animation: fadeInUp 0.4s ease forwards;
}
.trust-badge-stagger:nth-child(1) { animation-delay: 1.5s; }
.trust-badge-stagger:nth-child(2) { animation-delay: 1.6s; }
.trust-badge-stagger:nth-child(3) { animation-delay: 1.7s; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* #42 Page transition fade */
body.page-exit {
  animation: pageFadeOut 0.1s ease forwards;
}
@keyframes pageFadeOut {
  to { opacity: 0; }
}
body {
  animation: pageFadeIn 0.15s ease;
}
@keyframes pageFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* HIGH #52: Max-width content wrapper for ultrawide displays */
.content-wrap {
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}

/* Ensure footer grid doesn't stretch on ultrawide */
.footer > * {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

/* LOW #30: Back to top button */
#back-to-top {
  position: fixed;
  bottom: max(28px, env(safe-area-inset-bottom, 28px));
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--navy);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(15,27,60,0.2);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 100;
  font-size: 18px;
}
#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
#back-to-top:hover {
  transform: translateY(-2px);
  background: var(--accent);
}

/* MEDIUM #56: Cookie banner at 320px */
@media (max-width: 360px) {
  .cookie-banner { flex-direction: column; gap: 12px; }
  .cookie-btns { width: 100%; justify-content: stretch; }
  .cookie-accept, .cookie-decline { flex: 1; text-align: center; }
}

/* MEDIUM #57: Tier name overflow on narrow screens */
.tier-name, .tier-opt-name, .tc-tier-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (max-width: 360px) {
  .tier-name, .tc-tier-name { font-size: 12px; }
}
