/* Kokushi-Pack Base Styles */

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

html, body {
  height: 100%;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #333;
  background-color: #f9f9f9;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: #2c3e50;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
  line-height: 1.6;
}

a {
  color: #3498db;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #2980b9;
}

/* Lists */
ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.5rem;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Form Elements */
input, textarea, select, button {
  font-family: inherit;
  font-size: 1rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  background-color: #fff;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  margin-bottom: 1rem;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
  border-color: #3498db;
  outline: none;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.25);
}

textarea {
  resize: vertical;
  min-height: 100px;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #2c3e50;
}

button,
.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  text-align: center;
  transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

button:hover,
.button:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

button:focus,
.button:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.4);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

th, td {
  padding: 0.75rem;
  border-bottom: 1px solid #e9ecef;
  text-align: left;
}

th {
  font-weight: 600;
  background-color: #f8f9fa;
  color: #2c3e50;
}

tr:hover {
  background-color: #f8f9fa;
}

/* Focus Styles */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.4);
}

/* Helper Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-bold { font-weight: 700; }

.text-primary { color: #3498db; }
.text-secondary { color: #2c3e50; }
.text-success { color: #2ecc71; }
.text-warning { color: #f39c12; }
.text-danger { color: #e74c3c; }
.text-muted { color: #6c757d; }

.bg-white { background-color: #fff; }
.bg-light { background-color: #f8f9fa; }
.bg-primary { background-color: #3498db; color: white; }
.bg-secondary { background-color: #2c3e50; color: white; }
.bg-success { background-color: #2ecc71; color: white; }
.bg-warning { background-color: #f39c12; color: white; }
.bg-danger { background-color: #e74c3c; color: white; }

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.5s ease-in;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.8rem; }
  h3 { font-size: 1.5rem; }
  h4 { font-size: 1.3rem; }
  h5 { font-size: 1.1rem; }
  h6 { font-size: 1rem; }
}

@media (max-width: 576px) {
  html {
    font-size: 14px;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  h3 { font-size: 1.4rem; }
  h4 { font-size: 1.2rem; }
  h5 { font-size: 1.1rem; }
  h6 { font-size: 1rem; }
  
  button,
  .button {
    padding: 0.5rem 1rem;
  }
}