/* =====================================================
   ExcelQuest – Design System Global
   ===================================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800;900&display=swap');

/* ---- CSS Variables ---- */
:root {
  --green: #58cc02;
  --green-dark: #3f8e01;
  --green-glow: rgba(88, 204, 2, 0.25);
  --blue: #1cb0f6;
  --blue-dark: #0a8fc4;
  --red: #ea2b2b;
  --red-dark: #c01a1a;
  --orange: #ff9600;
  --purple: #a560f8;
  --gold: #ffd900;
  --gold-dark: #d4a900;

  --bg: #0e1a20;
  --bg-2: #131f24;
  --card: #1a2b33;
  --card-2: #1f3340;
  --border: #263645;
  --border-light: #2f4455;

  --text: #ffffff;
  --text-muted: #8ea5b5;
  --text-dim: #5a7588;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);

  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --header-h: 64px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

a {
  color: var(--green);
  text-decoration: none;
  transition: opacity var(--transition);
}

a:hover {
  opacity: 0.8;
}

img {
  max-width: 100%;
}

/* ---- Tipografia ---- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
}

h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
}

p {
  color: var(--text-muted);
  line-height: 1.6;
}

small {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ---- Botões ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: translateY(2px);
}

.btn-primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 4px 0 var(--green-dark);
}

.btn-primary:hover {
  background: var(--green-dark);
  transform: translateY(-1px);
  box-shadow: 0 5px 0 #2a6000;
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--green);
  border: 2px solid var(--green);
}

.btn-outline:hover {
  background: var(--green-glow);
  color: var(--green);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 2px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--border-light);
  color: var(--text);
}

.btn-danger {
  background: var(--red);
  color: #fff;
  box-shadow: 0 4px 0 var(--red-dark);
}

.btn-full {
  width: 100%;
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.1rem;
  border-radius: 16px;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
  border-radius: 10px;
}

/* ---- Alertas ---- */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.alert-error {
  background: rgba(234, 43, 43, 0.15);
  border: 1px solid rgba(234, 43, 43, 0.4);
  color: #ff8080;
}

.alert-success {
  background: rgba(88, 204, 2, 0.15);
  border: 1px solid rgba(88, 204, 2, 0.4);
  color: #88ee44;
}

/* ---- App Header (Dashboard + Ranking) ---- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 26, 32, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  height: var(--header-h);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.header-logo {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: auto;
}

.header-logo:hover {
  color: var(--green);
  opacity: 1;
}

.header-stats {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
}

.stat-icon {
  font-size: 1rem;
}

.stat-value {
  font-weight: 800;
  font-size: 0.95rem;
}

.user-avatar {
  font-size: 1.5rem;
  cursor: pointer;
  user-select: none;
}

.header-actions {
  display: flex;
  gap: 8px;
}

.xp-bar-container {
  height: 4px;
  background: var(--border);
  overflow: hidden;
}

.xp-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green), #88ee44);
  border-radius: 2px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal-card {
  background: var(--card);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  max-width: 460px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease;
}

.modal-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.modal-card h3 {
  margin-bottom: 8px;
}

.modal-card p {
  margin-bottom: 20px;
}

.modal-tips {
  background: var(--bg-2);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tip-item {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

/* ---- Spinner ---- */
.loading-spinner {
  text-align: center;
  color: var(--text-muted);
  padding: 40px;
  font-size: 1.1rem;
}

/* ---- Utilities ---- */
.text-center {
  text-align: center;
}

.text-green {
  color: var(--green);
}

.text-red {
  color: var(--red);
}

.text-gold {
  color: var(--gold);
}

.text-muted {
  color: var(--text-muted);
}

/* ---- Animations ---- */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-8px);
  }
}

@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(-8px);
  }

  40% {
    transform: translateX(8px);
  }

  60% {
    transform: translateX(-6px);
  }

  80% {
    transform: translateX(6px);
  }
}

@keyframes pop {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.15);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes confettiFall {
  to {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.6;
  }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-2);
}

::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 3px;
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .header-inner {
    padding: 0 12px;
    gap: 8px;
  }

  .header-stats {
    gap: 6px;
  }

  .stat-item {
    padding: 5px 10px;
  }

  .modal-card {
    padding: 24px 20px;
  }
}