/* ============================================
   RESET & VARIABLES
   ============================================ */

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

:root {
  --primary: #90EFFF;
  --primary-dark: #004AAC;
  --primary-light: #e8f1ff;
  --accent-green: #22c55e;
  --accent-yellow: #eab308;
  --accent-red: #ef4444;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --text-lighter: #9ca3af;
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-gray: #f3f4f6;
  --border: #e5e7eb;
  --border-light: #f0f1f3;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --transition: 0.2s ease;
}

html,
body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.5;
}

/* ============================================
   BUTTONS
   ============================================ */

button {
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  border-radius: 10px;
  background-color: var(--primary-dark);
  color: white;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.btn-primary:hover {
  background-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  padding: 10px 20px;
  background-color: var(--text-light);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--text-dark);
  box-shadow: var(--shadow-md);
}

.btn-tertiary {
  padding: 10px 20px;
  background-color: transparent;
  color: black;
  border: 2px solid var(--primary-dark);
}

.btn-tertiary:hover {
  background-color: var(--primary-dark);
  color: white;
}

.btn-full {
  width: 100%;
}

.btn-lg {
  padding: 12px 24px;
}

/* ============================================
   FORMS
   ============================================ */

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

.form-group label {
  font-weight: 600;
  font-size: 13px;
  color: var(--text-dark);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background-color: var(--bg-white);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group input:disabled,
.form-group textarea:disabled,
.form-group select:disabled {
  background-color: var(--bg-gray);
  cursor: not-allowed;
  color: var(--text-lighter);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-button-group {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}

/* ============================================
   UTILITY
   ============================================ */

.oculto {
  display: none !important;
}
.visible {
  display: block !important;
}
.text-center {
  text-align: center;
}
.mt-2 {
  margin-top: 8px;
}
.mt-4 {
  margin-top: 16px;
}
.mb-2 {
  margin-bottom: 8px;
}
.mb-4 {
  margin-bottom: 16px;
}