/* =============================================================
   GLOBAL — CSS Variables, Reset, Typography
   FIFA World Cup 2026 Poll — AMO
   Theme: #000101 Black + Gold
   ============================================================= */

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

/* ─── CSS Variables ─────────────────────────────────────────── */
:root {
  --black:        #000101;
  --black-2:      #0a0a0b;
  --black-3:      #111213;
  --black-4:      #1a1b1c;
  --black-5:      #222324;

  --gold:         #C9A84C;
  --gold-light:   #FFD700;
  --gold-bright:  #FFE566;
  --gold-dark:    #8B6914;
  --gold-glow:    rgba(201, 168, 76, 0.35);

  --white:        #FFFFFF;
  --off-white:    #F0EDE4;
  --text-muted:   #888;
  --text-dim:     #555;

  --error:        #FF4757;
  --success:      #2ED573;
  --warning:      #FFA502;

  --radius-sm:    6px;
  --radius:       12px;
  --radius-lg:    20px;
  --radius-xl:    32px;

  --shadow-gold:  0 0 20px rgba(201, 168, 76, 0.4), 0 0 60px rgba(201, 168, 76, 0.15);
  --shadow-card:  0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-lift:  0 20px 60px rgba(0, 0, 0, 0.8);

  --transition:   all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  --font-display: 'Bebas Neue', 'Impact', sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--black);
  color: var(--white);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--gold);
  text-decoration: none;
  transition: var(--transition-fast);
}
a:hover { color: var(--gold-bright); }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

ul, ol { list-style: none; }

/* ─── Typography ─────────────────────────────────────────────── */
.heading-xl {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--gold-light);
  text-shadow: 0 0 40px rgba(255, 215, 0, 0.5);
}

.heading-lg {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: 0.04em;
  line-height: 1.1;
  color: var(--gold-light);
}

.heading-md {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  letter-spacing: 0.06em;
  color: var(--gold);
}

.heading-sm {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.text-gold   { color: var(--gold); }
.text-bright { color: var(--gold-bright); }
.text-muted  { color: var(--text-muted); }
.text-center { text-align: center; }

/* ─── Utility ────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

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

/* ─── Gold Divider ──────────────────────────────────────────── */
.gold-divider {
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold-light), transparent);
  margin: 0 auto;
  border-radius: 2px;
}

/* ─── Flash / Toast Messages ─────────────────────────────────── */
.flash {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 20px;
  border: 1px solid transparent;
  animation: slideDown 0.3s ease;
}
.flash-error   { background: rgba(255, 71, 87, 0.12); border-color: rgba(255, 71, 87, 0.4); color: #ff8a93; }
.flash-success { background: rgba(46, 213, 115, 0.1); border-color: rgba(46, 213, 115, 0.3); color: #7effa0; }
.flash-warning { background: rgba(255, 165, 2, 0.1);  border-color: rgba(255, 165, 2, 0.3);  color: #ffca6b; }
.flash-info    { background: rgba(201, 168, 76, 0.1);  border-color: rgba(201, 168, 76, 0.3);  color: var(--gold-light); }

/* ─── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 36px;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  user-select: none;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background 0.2s;
}
.btn:hover::before { background: rgba(255,255,255,0.07); }
.btn:active { transform: scale(0.97); }

.btn-gold {
  background: linear-gradient(135deg, var(--gold-dark) 0%, var(--gold) 50%, var(--gold-light) 100%);
  color: var(--black);
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.4);
  font-weight: 700;
}
.btn-gold:hover {
  box-shadow: 0 8px 40px rgba(255, 215, 0, 0.6);
  transform: translateY(-2px);
}

.btn-outline-gold {
  background: transparent;
  border: 2px solid var(--gold);
  color: var(--gold);
}
.btn-outline-gold:hover {
  background: var(--gold-glow);
  color: var(--gold-bright);
  border-color: var(--gold-bright);
}

.btn-danger {
  background: rgba(255, 71, 87, 0.15);
  border: 1px solid rgba(255, 71, 87, 0.4);
  color: #ff6b78;
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}
.btn-danger:hover {
  background: rgba(255, 71, 87, 0.3);
  color: #fff;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ─── Form Elements ──────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.form-input {
  background: var(--black-4);
  border: 1px solid rgba(201, 168, 76, 0.25);
  border-radius: var(--radius);
  color: var(--white);
  padding: 14px 18px;
  font-size: 1rem;
  transition: var(--transition);
  outline: none;
  width: 100%;
}

.form-input::placeholder { color: var(--text-dim); }

.form-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
  background: var(--black-3);
}

.form-input.error {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(255, 71, 87, 0.15);
}

.field-error {
  font-size: 0.8rem;
  color: var(--error);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ─── Particle canvas background ─────────────────────────────── */
#particle-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

/* ─── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black-2); }
::-webkit-scrollbar-thumb { background: var(--gold-dark); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ─── Keyframes shared ───────────────────────────────────────── */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 20px rgba(201, 168, 76, 0.3); }
  50%       { box-shadow: 0 0 40px rgba(255, 215, 0, 0.7); }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

/* ─── Reduced motion ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ─── Responsive breakpoints ─────────────────────────────────── */
@media (max-width: 768px) {
  .container { padding: 0 16px; }
}

@media (max-width: 480px) {
  .container { padding: 0 12px; }
}