/* ====================================================
   LeadCar — Design System
   Calculadora de Pré-Avaliação de Seminovos
   ==================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ── Reset & Base ───────────────────────────────── */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── CSS Variables ──────────────────────────────── */

:root {
  --bg-primary: #080c18;
  --bg-secondary: #0f172a;
  --bg-card: rgba(15, 23, 42, 0.8);
  --bg-card-hover: rgba(15, 23, 42, 0.95);
  --bg-input: rgba(15, 23, 42, 0.6);

  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-border-hover: rgba(255, 255, 255, 0.12);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dark: #1e293b;

  --accent: #00d4aa;
  --accent-hover: #00eabb;
  --accent-dim: #008c70;
  --accent-glow: rgba(0, 212, 170, 0.15);
  --accent-glow-strong: rgba(0, 212, 170, 0.35);
  --gradient: linear-gradient(135deg, #00d4aa, #3b82f6);
  --gradient-warm: linear-gradient(135deg, #f59e0b, #ef4444);

  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.1);
  --warning: #f59e0b;
  --success: #10b981;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 50px;

  --transition-fast: 150ms ease;
  --transition-base: 280ms ease;
  --transition-slow: 450ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── Animated Background ────────────────────────── */

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 20%, rgba(0, 212, 170, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ── App Container ──────────────────────────────── */

.app-container {
  position: relative;
  z-index: 1;
  max-width: 540px;
  margin: 0 auto;
  padding: 24px 20px 40px;
  min-height: 100vh;
}

/* ── Header ─────────────────────────────────────── */

.app-header {
  text-align: center;
  padding: 16px 0 28px;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 8px;
}

.logo-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 4px 20px var(--accent-glow-strong);
}

.logo-text {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.tagline {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 400;
}

/* ── Progress Bar ───────────────────────────────── */

.progress-bar {
  margin-bottom: 32px;
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  padding: 0 8px;
}

.progress-track {
  position: absolute;
  top: 16px;
  left: 32px;
  right: 32px;
  height: 3px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 3px;
  z-index: 0;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient);
  border-radius: 3px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 12px var(--accent-glow-strong);
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
  flex: 1;
}

.step-dot {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 2px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: all var(--transition-slow);
  position: relative;
}

.progress-step.active .step-dot {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-dark);
  box-shadow: 0 0 20px var(--accent-glow-strong), 0 0 6px var(--accent-glow);
  transform: scale(1.1);
}

.progress-step.completed .step-dot {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  color: white;
}

.progress-step.completed .step-dot::after {
  content: '✓';
  font-size: 0.85rem;
}

.step-label {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color var(--transition-base);
}

.progress-step.active .step-label {
  color: var(--accent);
}

.progress-step.completed .step-label {
  color: var(--text-secondary);
}

/* ── Steps Container ────────────────────────────── */

.steps-container {
  position: relative;
  overflow: hidden;
  min-height: 460px;
}

.step {
  display: none;
  opacity: 0;
  transform: translateX(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.step.active {
  display: block;
  opacity: 1;
  transform: translateX(0);
}

.step-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.step-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ── Vehicle Type Cards ─────────────────────────── */

.type-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.type-card {
  background: var(--bg-card);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 16px 8px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.type-card:hover {
  border-color: var(--glass-border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.type-card.active {
  border-color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 20px var(--accent-glow), inset 0 0 20px var(--accent-glow);
}

.type-card-icon {
  font-size: 1.8rem;
  margin-bottom: 6px;
  display: block;
}

.type-card-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.type-card.active .type-card-label {
  color: var(--accent);
}

/* ── Form Elements ──────────────────────────────── */

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group select,
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"] {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-input);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-base);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-group select:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.form-group select:focus,
.form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 0 20px var(--accent-glow);
}

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

.form-group select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 8px;
}

.form-group .input-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-group.error select,
.form-group.error input {
  border-color: var(--error);
  box-shadow: 0 0 0 3px var(--error-bg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ── Conservation Cards ─────────────────────────── */

.conservation-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.conservation-card {
  background: var(--bg-card);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  cursor: pointer;
  transition: all var(--transition-base);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.conservation-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.conservation-card.active {
  border-color: var(--card-accent-color, var(--accent));
  box-shadow: 0 0 24px rgba(var(--card-accent-rgb, 0, 212, 170), 0.2);
}

.conservation-card.active::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(var(--card-accent-rgb, 0, 212, 170), 0.06);
  pointer-events: none;
}

.conservation-icon {
  font-size: 2rem;
  margin-bottom: 8px;
  display: block;
}

.conservation-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.conservation-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.conservation-card .check-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--card-accent-color, var(--accent));
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--text-dark);
  font-weight: 800;
}

.conservation-card.active .check-badge {
  display: flex;
  animation: popIn 0.3s var(--transition-spring);
}

/* ── Contact Form ───────────────────────────────── */

.contact-info {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  margin-bottom: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.contact-info .lock-icon {
  text-align: center;
  margin-bottom: 16px;
}

.contact-info .lock-icon span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.whatsapp-required {
  position: relative;
}

.whatsapp-required::after {
  content: '📱';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
}

/* ── Buttons ────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 32px;
  border: none;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  outline: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient);
  color: var(--text-dark);
  width: 100%;
  box-shadow: 0 4px 20px var(--accent-glow-strong);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow-strong), 0 0 40px var(--accent-glow);
}

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

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1.5px solid var(--glass-border);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  border-color: var(--glass-border-hover);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.btn-whatsapp {
  background: #25D366;
  color: white;
  width: 100%;
  font-size: 1rem;
  padding: 16px 32px;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #20bd5a;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.4);
}

.btn-whatsapp svg {
  width: 22px;
  height: 22px;
  fill: white;
}

.btn-group {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.btn-group .btn-secondary {
  flex: 0 0 auto;
  padding: 15px 20px;
}

.btn-group .btn-primary {
  flex: 1;
}

.btn .spinner {
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(0, 0, 0, 0.2);
  border-top-color: var(--text-dark);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ── Result Section ─────────────────────────────── */

.result-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  gap: 20px;
}

.result-loading .loader {
  width: 48px;
  height: 48px;
  border: 3px solid var(--glass-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.result-loading p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  animation: pulse 1.5s ease infinite;
}

.result-content {
  animation: fadeInUp 0.6s ease;
}

.result-vehicle-info {
  text-align: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--glass-border);
}

.result-vehicle-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.result-vehicle-year {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.result-fipe-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.result-fipe-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.result-fipe-value {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.result-estimate-card {
  background: var(--bg-card);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 40px var(--accent-glow), 0 8px 32px rgba(0, 0, 0, 0.3);
}

.result-estimate-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.result-estimate-title {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  margin-bottom: 16px;
  position: relative;
}

.result-estimate-range {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  position: relative;
}

.result-estimate-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.result-estimate-separator {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 400;
}

.result-reference {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 12px;
  position: relative;
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.result-disclaimer {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 20px;
  line-height: 1.5;
  padding: 0 8px;
}

/* ── Toast Notifications ────────────────────────── */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 14px 24px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  z-index: 9999;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
              opacity 0.35s ease;
  opacity: 0;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  max-width: 90%;
  text-align: center;
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast-error {
  background: rgba(239, 68, 68, 0.9);
  color: white;
  box-shadow: 0 4px 24px rgba(239, 68, 68, 0.3);
}

.toast-success {
  background: rgba(16, 185, 129, 0.9);
  color: white;
  box-shadow: 0 4px 24px rgba(16, 185, 129, 0.3);
}

.toast-info {
  background: rgba(59, 130, 246, 0.9);
  color: white;
  box-shadow: 0 4px 24px rgba(59, 130, 246, 0.3);
}

/* ── Footer / Branding ──────────────────────────── */

.app-footer {
  text-align: center;
  padding: 32px 0 16px;
  border-top: 1px solid var(--glass-border);
  margin-top: 32px;
}

.app-footer p {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.app-footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.app-footer a:hover {
  text-decoration: underline;
}

/* ── Animations ─────────────────────────────────── */

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

@keyframes popIn {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  70% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

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

@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 20px var(--accent-glow), 0 0 40px var(--accent-glow);
  }
  50% {
    box-shadow: 0 0 30px var(--accent-glow-strong), 0 0 60px var(--accent-glow);
  }
}

.glow-pulse {
  animation: glowPulse 2s ease infinite;
}

/* ── Loading Skeleton ───────────────────────────── */

.skeleton {
  background: linear-gradient(90deg,
    var(--bg-card) 25%,
    rgba(255, 255, 255, 0.05) 37%,
    var(--bg-card) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.5s ease infinite;
  border-radius: var(--radius-sm);
}

/* ── Responsive ─────────────────────────────────── */

@media (max-width: 480px) {
  .app-container {
    padding: 16px 16px 32px;
  }

  .step-title {
    font-size: 1.2rem;
  }

  .type-cards {
    gap: 8px;
  }

  .type-card {
    padding: 12px 6px;
  }

  .type-card-icon {
    font-size: 1.5rem;
  }

  .conservation-cards {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .conservation-card {
    display: flex;
    align-items: center;
    text-align: left;
    gap: 14px;
    padding: 16px;
  }

  .conservation-icon {
    font-size: 1.6rem;
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .result-estimate-value {
    font-size: 1.3rem;
  }

  .btn-group {
    flex-direction: column-reverse;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .conservation-card {
    padding: 18px 14px;
  }
}

@media (min-width: 769px) {
  .app-container {
    padding-top: 48px;
  }
}

/* ── New Evaluation Button ──────────────────────── */

.btn-new-eval {
  background: transparent;
  border: 1.5px solid var(--glass-border);
  color: var(--text-secondary);
  width: 100%;
  margin-top: 8px;
}

.btn-new-eval:hover {
  border-color: var(--glass-border-hover);
  color: var(--text-primary);
}

/* ── Optional Badge ─────────────────────────────── */

.optional-badge {
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--text-muted);
  text-transform: lowercase;
  letter-spacing: 0;
  margin-left: 4px;
}

/* ── Back Arrow ─────────────────────────────────── */

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  padding: 4px 0;
  margin-bottom: 16px;
  transition: color var(--transition-fast);
}

.btn-back:hover {
  color: var(--text-primary);
}

.btn-back svg {
  width: 16px;
  height: 16px;
}