/* ═══════════════════════════════════════════════════════════════
   PREDITOR BRASILEIRÃO — style.css (Enhanced Edition)
   Paleta CBF: Amarelo #FDB913 · Verde #009B3A · Azul #002776 · Branco #FFFFFF
   ═══════════════════════════════════════════════════════════════ */

/* ─── 1. DESIGN TOKENS ───────────────────────────────────────── */
:root {
  --amarelo:      #FDB913;
  --amarelo-dark: #e6a30f;
  --verde:        #009B3A;
  --verde-dark:   #007a2e;
  --verde-light:  #00c44a18;
  --azul:         #002776;
  --azul-dark:    #001a55;
  --azul-mid:     #003999;
  --branco:       #FFFFFF;

  --bg:           #07112b;
  --bg-card:      rgba(255,255,255,0.04);
  --border:       rgba(255,255,255,0.1);
  --border-focus: var(--amarelo);
  --text-primary: #e8edf8;
  --text-secondary:#8fa3c8;
  --text-muted:   #4e6285;

  --glass-blur:   blur(18px);
  --glass-bg:     rgba(0,39,118,0.25);
  --glass-border: rgba(253,185,19,0.15);

  --shadow-card:  0 8px 40px rgba(0,0,0,0.5);
  --shadow-btn:   0 4px 24px rgba(253,185,19,0.4);
  --shadow-metric:0 4px 24px rgba(0,155,58,0.25);

  --radius-lg:  20px;
  --radius-md:  12px;
  --radius-sm:  8px;
  --gap:        1.5rem;
  --transition: 0.3s ease;
}

/* ─── 2. RESET & BASE ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* Garante que [hidden] nunca seja sobrescrito pelo CSS */
[hidden] { display: none !important; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    linear-gradient(135deg, #001a55 0%, #07112b 40%, #001a2e 100%),
    radial-gradient(ellipse at 20% 20%, rgba(0,155,58,0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(253,185,19,0.08) 0%, transparent 60%);
  background-blend-mode: screen;
}

/* ─── 3. PARTICLE CANVAS ─────────────────────────────────────── */
#particleCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

/* ─── 4. CONFETTI ────────────────────────────────────────────── */
#confettiContainer {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  top: -12px;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  animation: confetti-fall var(--dur, 2.5s) var(--delay, 0s) ease-in forwards;
}

@keyframes confetti-fall {
  0%   { transform: translateY(-20px) rotate(0deg); opacity: 1; }
  80%  { opacity: 1; }
  100% { transform: translateY(110vh) rotate(720deg); opacity: 0; }
}

/* ─── 5. HEADER ──────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0,23,75,0.85);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
}

.header-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
  z-index: 1;
}

.brand { display: flex; align-items: center; gap: 0.75rem; }

.brand-badge {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--amarelo), var(--verde));
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(253,185,19,0.25), 0 0 20px rgba(253,185,19,0.3);
  animation: badge-glow 3s ease-in-out infinite;
}

@keyframes badge-glow {
  0%, 100% { box-shadow: 0 0 0 3px rgba(253,185,19,0.25), 0 0 16px rgba(253,185,19,0.25); }
  50%       { box-shadow: 0 0 0 5px rgba(253,185,19,0.35), 0 0 32px rgba(253,185,19,0.5); }
}

.brand-title {
  display: block;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--branco);
}

.brand-sub {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--amarelo);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.model-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0,155,58,0.12);
  border: 1px solid rgba(0,155,58,0.3);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: #5fdb8b;
  white-space: nowrap;
}

.pill-dot {
  width: 7px; height: 7px;
  background: #00e76a;
  border-radius: 50%;
  box-shadow: 0 0 6px #00e76a;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.75); }
}

/* ─── 6. HERO ────────────────────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 1.5rem 3rem;
  text-align: center;
  z-index: 1;
}

.hero-content { position: relative; z-index: 1; }

.hero-title {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--branco);
  margin-bottom: 1rem;
}

/* Animated highlight underline */
.highlight {
  position: relative;
  display: inline-block;
  background: linear-gradient(90deg, var(--amarelo) 0%, #ffdf72 50%, var(--amarelo) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer-text 3s linear infinite;
}

.highlight::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--amarelo), transparent);
  border-radius: 2px;
  animation: underline-sweep 2.5s ease-in-out infinite;
}

@keyframes shimmer-text {
  to { background-position: 200% center; }
}

@keyframes underline-sweep {
  0%   { transform: scaleX(0); opacity: 0; }
  50%  { transform: scaleX(1); opacity: 1; }
  100% { transform: scaleX(0); opacity: 0; }
}

.hero-sub {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.6;
  animation: fade-up 1s ease 0.3s both;
}

/* Decorative circles */
.hero-decoration { position: absolute; inset: 0; z-index: 0; pointer-events: none; }

.deco-circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.18;
  filter: blur(60px);
}
.deco-1 {
  width: 400px; height: 400px;
  background: var(--verde);
  top: -120px; left: -100px;
  animation: float 8s ease-in-out infinite;
}
.deco-2 {
  width: 300px; height: 300px;
  background: var(--amarelo);
  top: -80px; right: -80px;
  animation: float 10s ease-in-out infinite reverse;
}
.deco-3 {
  width: 200px; height: 200px;
  background: var(--azul-mid);
  bottom: 0; left: 50%;
  animation: float 12s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-20px) scale(1.05); }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── 7. MAIN LAYOUT ─────────────────────────────────────────── */
.main-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  position: relative;
  z-index: 1;
}

/* ─── 8. CARDS — animated gradient border ────────────────────── */
.card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  isolation: isolate;
}

/* Rotating gradient border via conic-gradient pseudo-element */
.card::before {
  content: '';
  position: absolute;
  inset: -1.5px;
  border-radius: calc(var(--radius-lg) + 2px);
  background: conic-gradient(
    from var(--angle, 0deg),
    var(--azul-mid),
    var(--amarelo),
    var(--verde),
    var(--amarelo),
    var(--azul-mid)
  );
  z-index: -1;
  animation: rotate-border 6s linear infinite;
  opacity: 0.6;
}

.card::after {
  content: '';
  position: absolute;
  inset: 1.5px;
  border-radius: calc(var(--radius-lg) - 1px);
  background: #0a1835;
  z-index: -1;
}

@property --angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

@keyframes rotate-border {
  to { --angle: 360deg; }
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.75rem;
}

.card-icon { font-size: 1.35rem; }

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--branco);
  letter-spacing: -0.01em;
}

/* ─── 9. FORM ────────────────────────────────────────────────── */
.form-row { display: grid; gap: 1rem; margin-bottom: 1rem; }
.two-cols  { grid-template-columns: 1fr 1fr; }
.three-cols{ grid-template-columns: 1fr 1fr 1fr; }

.form-group { display: flex; flex-direction: column; gap: 0.45rem; }

.form-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.form-group:focus-within .form-label { color: var(--amarelo); }

.select-wrapper { position: relative; }

.select-wrapper select,
.form-input {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: rgba(0,39,118,0.35);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.72rem 1rem;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: pointer;
}

.select-wrapper select { padding-right: 2.5rem; }

.select-arrow {
  position: absolute;
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--amarelo);
  font-size: 0.85rem;
  pointer-events: none;
  transition: transform var(--transition);
}

.select-wrapper:focus-within .select-arrow {
  transform: translateY(-50%) rotate(180deg);
}

.select-wrapper select:focus,
.form-input:focus {
  outline: none;
  border-color: var(--amarelo);
  box-shadow: 0 0 0 3px rgba(253,185,19,0.2), 0 0 16px rgba(253,185,19,0.15);
  background: rgba(0,39,118,0.55);
}

.select-wrapper select:hover,
.form-input:hover {
  border-color: rgba(253,185,19,0.5);
}

.form-input[type="number"] { -moz-appearance: textfield; }
.form-input[type="number"]::-webkit-inner-spin-button,
.form-input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }

select option { background: #0d1f4a; color: var(--text-primary); }

/* ─── 10. BOTÃO PRINCIPAL ────────────────────────────────────── */
.btn-primary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  margin-top: 1.5rem;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--amarelo) 0%, #ffc93c 100%);
  color: var(--azul-dark);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  overflow: hidden;
  box-shadow: var(--shadow-btn);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.015);
  box-shadow: 0 10px 36px rgba(253,185,19,0.6), 0 0 60px rgba(253,185,19,0.2);
  filter: brightness(1.07);
}

.btn-primary:active { transform: translateY(0) scale(0.98); }

.btn-primary:disabled {
  cursor: not-allowed;
  filter: brightness(0.6);
  transform: none;
  box-shadow: none;
}

/* Shimmer sweep */
.btn-shimmer {
  position: absolute;
  top: 0; left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    rgba(255,255,255,0.45) 50%,
    transparent 100%
  );
  transform: skewX(-20deg);
  animation: shimmer-btn 3.5s ease-in-out infinite;
}

@keyframes shimmer-btn {
  0%   { left: -75%; opacity: 0; }
  15%  { opacity: 1; }
  50%  { left: 135%; opacity: 1; }
  51%  { opacity: 0; }
  100% { left: 135%; opacity: 0; }
}

/* Ripple */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  transform: scale(0);
  animation: ripple-anim 0.6s linear;
  pointer-events: none;
}

@keyframes ripple-anim {
  to { transform: scale(4); opacity: 0; }
}

/* Loader */
.btn-loader {
  display: none;
  width: 18px; height: 18px;
  border: 2.5px solid rgba(0,39,118,0.35);
  border-top-color: var(--azul-dark);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn-primary.loading .btn-label,
.btn-primary.loading .btn-shimmer { display: none; }
.btn-primary.loading .btn-loader { display: inline-block; }

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

/* ─── 11. RESULT CARD ─────────────────────────────────────────── */
.result-card {
  animation: slide-up 0.5s cubic-bezier(0.25, 1, 0.5, 1) both;
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(32px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.match-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--branco);
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
  animation: fade-up 0.4s ease both;
}

.match-meta {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 1.75rem;
  animation: fade-up 0.4s ease 0.1s both;
}

/* ─── 12. METRIC CARDS — 3D tilt ─────────────────────────────── */
.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.metric-card {
  border-radius: var(--radius-md);
  padding: 1.4rem 1.25rem;
  text-align: center;
  border: 1.5px solid transparent;
  transition: transform 0.1s ease, box-shadow var(--transition);
  transform-style: preserve-3d;
  will-change: transform;
  animation: fade-up 0.4s ease 0.2s both;
}

.metric-green {
  background: rgba(0,155,58,0.12);
  border-color: rgba(0,155,58,0.35);
  box-shadow: var(--shadow-metric);
}

.metric-yellow {
  background: rgba(253,185,19,0.1);
  border-color: rgba(253,185,19,0.3);
  box-shadow: 0 4px 24px rgba(253,185,19,0.15);
}

.metric-icon { font-size: 1.6rem; margin-bottom: 0.4rem; }

.metric-label {
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.metric-value {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--branco);
  margin-bottom: 0.25rem;
  /* glow pulse after result appears */
}

.metric-value.glow-green {
  animation: glow-pulse-green 1.8s ease-out;
}
.metric-value.glow-yellow {
  animation: glow-pulse-yellow 1.8s ease-out;
}

@keyframes glow-pulse-green {
  0%   { text-shadow: 0 0 0 rgba(0,155,58,0); }
  40%  { text-shadow: 0 0 24px rgba(0,155,58,0.9), 0 0 48px rgba(0,155,58,0.5); }
  100% { text-shadow: none; }
}

@keyframes glow-pulse-yellow {
  0%   { text-shadow: 0 0 0 rgba(253,185,19,0); }
  40%  { text-shadow: 0 0 24px rgba(253,185,19,0.9), 0 0 48px rgba(253,185,19,0.4); }
  100% { text-shadow: none; }
}

.metric-unit {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ─── 13. HISTORICAL SECTION ─────────────────────────────────── */
.historical-section {
  background: rgba(0,39,118,0.2);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.25rem;
  animation: fade-up 0.4s ease 0.35s both;
}

.historical-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--amarelo);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}

.historical-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
}

.historical-item { display: flex; flex-direction: column; gap: 0.2rem; }

.hist-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hist-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.delta-banner {
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  animation: fade-up 0.4s ease 0.45s both;
}

.delta-banner.positive {
  background: rgba(0,155,58,0.15);
  border: 1px solid rgba(0,155,58,0.3);
  color: #4ade80;
}

.delta-banner.negative {
  background: rgba(253,185,19,0.12);
  border: 1px solid rgba(253,185,19,0.3);
  color: var(--amarelo);
}

/* ─── 14. ERROR TOAST ────────────────────────────────────────── */
.error-toast {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: rgba(200,30,30,0.15);
  border: 1.5px solid rgba(255,80,80,0.35);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: #fca5a5;
  animation: slide-up 0.35s ease both;
  position: relative;
  z-index: 1;
}

.error-icon { font-size: 1.1rem; flex-shrink: 0; }

/* ─── 15. PERFORMANCE CARD ───────────────────────────────────── */
.perf-card {
  border-color: rgba(0,155,58,0.2);
}

.perf-badge {
  margin-left: auto;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(253,185,19,0.15);
  border: 1px solid rgba(253,185,19,0.3);
  color: var(--amarelo);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

.perf-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  line-height: 1.5;
}

.perf-explainer {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.45;
  margin-bottom: 1.25rem;
  background: rgba(255, 255, 255, 0.03);
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.perf-explainer strong {
  color: var(--text-secondary);
  font-weight: 600;
}

.perf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.perf-item {
  background: rgba(0,39,118,0.2);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.perf-model-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.85rem;
}

.perf-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.perf-stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.perf-stat-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.perf-stat-value {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--branco);
  letter-spacing: -0.02em;
}

.perf-stat-unit {
  font-size: 0.65rem;
  color: var(--text-muted);
}

/* Animated progress bar for R² */
.perf-bar-wrap {
  height: 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 0.2rem;
}

.perf-bar {
  height: 100%;
  border-radius: 3px;
  width: 0%;
  transition: width 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.perf-bar-green  { background: linear-gradient(90deg, var(--verde-dark), var(--verde)); }
.perf-bar-yellow { background: linear-gradient(90deg, var(--amarelo-dark), var(--amarelo)); }

/* ─── 16. FOOTER ─────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.site-footer a {
  color: var(--amarelo);
  text-decoration: none;
  transition: color var(--transition);
}
.site-footer a:hover { color: #ffe07a; }

/* ─── 16. SCROLLBAR ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(253,185,19,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--amarelo); }

/* ─── 17. RESPONSIVIDADE ─────────────────────────────────────── */
@media (max-width: 640px) {
  .card { padding: 1.4rem 1.1rem; }
  .two-cols, .three-cols { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: 1fr; }
  .historical-grid { grid-template-columns: 1fr; }
  .hero { padding: 3rem 1.25rem 2rem; }
  .header-inner { flex-wrap: wrap; }
  .model-pill { font-size: 0.65rem; }
}

@media (max-width: 400px) {
  .brand-title { font-size: 0.85rem; }
}