@import url('variables.css');

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

body {
  margin: 0;
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

::placeholder {
  color: var(--text-placeholder);
  opacity: 1; /* Firefox 用 */
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

a:visited {
  color: var(--primary);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-top: 0;
  color: var(--text-main);
}

button {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  border-radius: var(--radius-md);
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

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

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--secondary);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--secondary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background-color: var(--card-bg);
  border-color: var(--text-muted);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.main-content {
  min-height: calc(100vh - 140px);
  padding: 2rem 0;
}

/* Card classes */
.card {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Form inputs */
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 0.75rem;
  margin-bottom: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-color);
  color: var(--text-main) !important; /* 修正: ブラウンセルのデフォルトや一部の特定環境で上書きされないよう固定 */
  font-family: var(--font-sans);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Header & Footer Styles inside components */

/* Global Utilities */
.hidden {
  display: none !important;
}

/* Header & Layout Utilities */
.header-flex-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  align-items: flex-start;
}

.button-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.no-wrap {
  white-space: nowrap;
}

/* Highlight & Animation Utilities */
.highlight-new {
  background-color: #ecfdf5 !important;
  font-weight: bold;
}

.flash-danger {
  background-color: #FEF2F2 !important;
}

@media (prefers-color-scheme: dark) {
  .highlight-new {
    background-color: rgba(16, 185, 129, 0.2) !important;
  }
  .flash-danger {
    background-color: rgba(239, 68, 68, 0.2) !important;
  }
}
@media (prefers-color-scheme: dark) {
  a:visited {
    color: #A5B4FC !important;
  }
}