/* ============================================
   VoteGuide AI — Base Styles
   Reset, typography, global defaults
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

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

/* Accessibility: WCAG 2.1 AA keyboard focus indicators */
*:focus-visible {
  outline: 2px solid var(--saffron-400);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Accessibility: Enhanced skip-to-content link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  padding: 8px 24px;
  background: var(--saffron-400);
  color: #000;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 8px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-regular);
  line-height: var(--leading-normal);
  color: var(--gray-800);
  background-color: var(--gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--navy-800);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--space-4);
  color: var(--gray-600);
  line-height: var(--leading-relaxed);
}

a {
  color: var(--navy-500);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--saffron-500);
}

strong { font-weight: var(--font-semibold); }

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: var(--font-body);
  border: none;
  outline: none;
  background: none;
}

input, textarea, select {
  font-family: var(--font-body);
  font-size: var(--text-base);
  outline: none;
}

/* ── Selection ── */
::selection {
  background: var(--saffron-500);
  color: var(--white);
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--navy-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--navy-400);
}

/* ── Focus Styles ── */
:focus-visible {
  outline: 2px solid var(--saffron-500);
  outline-offset: 2px;
}

/* ── Skip Link (a11y) ── */
.skip-link {
  position: absolute;
  top: -1000px;
  left: 0;
  background: var(--saffron-500);
  color: var(--white);
  padding: var(--space-2) var(--space-4);
  z-index: var(--z-toast);
  font-weight: var(--font-semibold);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* ── Screen Reader Only ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes borderGlow {
  0%, 100% { border-color: var(--saffron-500); box-shadow: 0 0 5px var(--saffron-glow); }
  50% { border-color: var(--emerald-500); box-shadow: 0 0 15px var(--emerald-glow); }
}

@keyframes tricolorShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── Utility Animation Classes ── */
.animate-fade-in { animation: fadeIn 0.6s ease forwards; }
.animate-fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.animate-fade-in-down { animation: fadeInDown 0.5s ease forwards; }
.animate-fade-in-left { animation: fadeInLeft 0.6s ease forwards; }
.animate-fade-in-right { animation: fadeInRight 0.6s ease forwards; }
.animate-scale-in { animation: scaleIn 0.4s ease forwards; }
.animate-float { animation: float 3s ease-in-out infinite; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-spin { animation: spin 1s linear infinite; }

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ── Tricolor Bar ── */
.tricolor-bar {
  height: 4px;
  background: var(--gradient-tricolor);
  width: 100%;
}

.tricolor-bar-animated {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 299;
  height: 4px;
  background: linear-gradient(90deg, #FF9933, #FFFFFF, #138808, #FF9933);
  background-size: 300% 100%;
  animation: tricolorShift 4s ease-in-out infinite;
}

/* ── Accessibility: Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ── Accessibility: High Contrast ── */
@media (prefers-contrast: high) {
  :root {
    --shadow-card: 0 0 0 2px var(--navy-800);
    --shadow-card-hover: 0 0 0 3px var(--navy-800);
  }
  .btn, button, a { text-decoration: underline; }
  :focus-visible { outline-width: 3px; }
}