/* Design System - VitaminaWeb SuperApp */

:root {
  /* Primary Colors */
  --color-primary-500: #00A8E8;
  --color-primary-600: #0096D1;
  --color-primary-700: #007FB3;
  
  /* Secondary Colors */
  --color-orange-500: #FFA500;
  --color-purple-500: #9C27B0;
  
  /* Functional Colors */
  --color-success: #4CAF50;
  --color-error: #F44336;
  --color-warning: #FFEB3B;
  --color-info: #2196F3;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-gray-50: #FAFAFA;
  --color-gray-100: #F5F5F5;
  --color-gray-200: #EEEEEE;
  --color-gray-300: #E0E0E0;
  --color-gray-600: #757575;
  --color-gray-700: #616161;
  --color-gray-800: #424242;
  --color-gray-900: #212121;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--color-gray-900);
  background: var(--color-white);
  line-height: 1.5;
  font-size: 14px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  padding: 16px 0;
}

nav {
  justify-content: space-between;
  align-items: center;
}

.nav-brand h1 {
  color: var(--color-primary-500);
  font-size: 20px;
  font-weight: 600;
}

.nav-menu {
  display: flex;
  gap: 24px;
}

.nav-menu a {
  color: var(--color-gray-700);
  text-decoration: none;
  font-weight: 500;
}

.nav-menu a:hover {
  color: var(--color-primary-500);
}

/* Buttons */
.btn-primary {
  background: var(--color-primary-500);
  color: var(--color-white);
  padding: 8px 20px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background 0.2s;
  line-height: 1.4;
}

.btn-primary:hover {
  background: var(--color-primary-600);
}

.btn-block {
  width: 100%;
}

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

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  color: var(--color-gray-800);
  font-size: 13px;
}

.form-group input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-gray-300);
  border-radius: 6px;
  font-size: 14px;
  line-height: 1.4;
  height: 38px;
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-primary-500);
}

/* Cards */
.features-grid,
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.feature-card,
.plan-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 8px;
  padding: 24px;
}

.plan-card .price {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary-500);
  margin: 16px 0;
}

/* Footer */
footer {
  background: var(--color-gray-100);
  padding: 40px 0;
  margin-top: 80px;
  text-align: center;
  color: var(--color-gray-600);
}

/* Hero */
.hero {
  text-align: center;
  padding: 80px 20px;
}

.hero h2 {
  font-size: 36px;
  margin-bottom: 12px;
  font-weight: 600;
}

.hero p {
  font-size: 16px;
  color: var(--color-gray-700);
  margin-bottom: 24px;
}

/* Login Page */
.login {
  padding: 80px 20px;
}

.login-container {
  max-width: 400px;
  margin: 0 auto;
}

.login-form {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 8px;
  padding: 40px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.login-form h2 {
  font-size: 24px;
  margin-bottom: 6px;
  text-align: center;
  color: var(--color-gray-900);
  font-weight: 600;
}

.login-form .subtitle {
  text-align: center;
  color: var(--color-gray-600);
  margin-bottom: 32px;
}

.alert {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.5;
}

.alert-error {
  background: #FEE;
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  color: var(--color-gray-600);
}

.login-footer a {
  color: var(--color-primary-500);
  text-decoration: none;
}

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

.login-footer-secondary {
  text-align: center;
  margin-top: 16px;
  color: var(--color-gray-600);
  font-size: 14px;
}

.login-footer-secondary a {
  color: var(--color-primary-500);
  text-decoration: none;
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 40px auto;
}

.form-group textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-gray-300);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
}

.alert {
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 20px;
}

.alert-success {
  background: #E8F5E9;
  border: 1px solid #4CAF50;
  color: #2E7D32;
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.5;
}