/* Google Fonts - Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

/* CSS Custom Properties */
:root {
  --bg: #0d0d0d;
  --surface: #1e1e1e;
  --primary: #4CAF50;
  --accent: #FFD700;
  --text: #FFFFFF;
  --text-muted: #aaaaaa;
  --error: #E53935;
  --success: #4CAF50;
  --warning: #FFC107;
  --radius-card: 8px;
  --radius-btn: 4px;
  --transition: 200ms ease;
}

/* Base Styles */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover {
  color: var(--accent);
}

img {
  max-width: 100%;
  height: auto;
}

/* Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

.card {
  background-color: var(--surface);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-btn);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition), transform var(--transition);
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn-primary {
  background-color: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background-color: #43a047;
}

/* Feedback */
.feedback {
  padding: 12px 16px;
  border-radius: var(--radius-btn);
  font-size: 0.875rem;
  margin-top: 12px;
}

.feedback[hidden] {
  display: none;
}

.feedback-success {
  background-color: rgba(76, 175, 80, 0.15);
  color: var(--success);
  border: 1px solid var(--success);
}

.feedback-error {
  background-color: rgba(229, 57, 53, 0.15);
  color: var(--error);
  border: 1px solid var(--error);
}

/* Form Group */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-group input,
.form-group select {
  min-height: 44px;
  padding: 10px 14px;
  background-color: var(--bg);
  border: 1px solid #333;
  border-radius: var(--radius-btn);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
}

/* Header Compartilhado */
.app-header {
  background-color: var(--surface);
  border-bottom: 1px solid #333;
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  gap: 12px;
}

.header-logo .logo {
  height: 36px;
  width: auto;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 8px 12px;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-btn);
  transition: color var(--transition), background-color var(--transition);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background-color: rgba(255, 255, 255, 0.05);
}

.btn-logout {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 8px 16px;
  background-color: transparent;
  border: 1px solid var(--error);
  border-radius: var(--radius-btn);
  color: var(--error);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition);
}

.btn-logout:hover {
  background-color: rgba(229, 57, 53, 0.1);
}

/* Responsive Breakpoints (Mobile First) */
@media (min-width: 640px) {
  .container {
    padding: 0 24px;
  }

  .header-nav {
    gap: 8px;
  }
}

@media (min-width: 768px) {
  .header-logo .logo {
    height: 40px;
  }

  .nav-link {
    font-size: 1rem;
    padding: 8px 16px;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 32px;
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}