/* ========================================
   グローバルスタイル
======================================== */

:root {
    /* カラーパレット */
    --primary-color: #4F46E5;
    --primary-hover: #4338CA;
    --secondary-color: #10B981;
    --accent-color: #F59E0B;
    --danger-color: #EF4444;
    
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;
    
    --border-color: #E5E7EB;
    --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);
    
    /* サイズ */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ========================================
   タイポグラフィ
======================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

/* ========================================
   ボタン
======================================== */

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

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

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-secondary);
}

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

.btn-success:hover:not(:disabled) {
    background-color: #059669;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

/* ========================================
   フォーム
======================================== */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

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

/* ========================================
   カード
======================================== */

.card {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.card-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

/* ========================================
   プログレスバー
======================================== */

.progress-bar-container {
    width: 100%;
    height: 8px;
    background-color: var(--bg-tertiary);
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 999px;
    transition: width 0.3s ease;
}

/* ========================================
   バッジ
======================================== */

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.badge-primary {
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--accent-color);
}

.badge-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

/* ========================================
   ログインページ
======================================== */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 480px;
}

.login-card {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: var(--spacing-xl);
}

.logo-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.logo-image {
    margin-bottom: var(--spacing-md);
}

.logo-image img {
    max-width: 280px;
    width: 100%;
    height: auto;
}

.logo-tagline {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.logo-title {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.logo-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--spacing-xs);
}

.logo-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.login-form-section {
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
    text-align: center;
    color: var(--text-primary);
}

.section-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

/* Googleログインボタン */
.btn-google {
    background-color: white;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-google:hover {
    background-color: var(--bg-secondary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

.btn-google svg {
    flex-shrink: 0;
}

/* 区切り線 */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider span {
    padding: 0 var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* フォームグループ */
.form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-group label i {
    color: var(--primary-color);
}

/* パスワード入力 */
.password-input-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s;
}

.password-toggle:hover {
    color: var(--primary-color);
}

/* フォームオプション */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.forgot-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.forgot-link:hover {
    text-decoration: underline;
}

.forgot-password {
    text-align: center;
    margin-top: var(--spacing-md);
}

.forgot-password a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-decoration: none;
}

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

.signup-section {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.signup-section p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

/* 役割選択 */
.role-selector {
    margin-bottom: var(--spacing-lg);
}

.role-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.role-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.role-option {
    cursor: pointer;
}

.role-option input[type="radio"] {
    display: none;
}

.role-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
    background-color: white;
}

.role-card i {
    font-size: 2rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.role-card span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.role-option:hover .role-card {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.role-option input[type="radio"]:checked + .role-card {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(79, 70, 229, 0.05) 100%);
}

.role-option input[type="radio"]:checked + .role-card i {
    color: var(--primary-color);
    transform: scale(1.1);
}

.role-option input[type="radio"]:checked + .role-card span {
    color: var(--primary-color);
}

.demo-notice {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.demo-notice i {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.demo-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.demo-title {
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.demo-title::before {
    content: '💡';
    font-size: 1.25rem;
}

.demo-accounts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.demo-account {
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.demo-account-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.demo-account-header i {
    font-size: 1rem;
    color: var(--primary-color);
}

.demo-account p {
    font-size: 0.75rem;
    margin: 4px 0;
    color: var(--text-secondary);
}

.demo-account p:first-of-type {
    margin-top: 0;
}

/* ========================================
   レスポンシブ
======================================== */

@media (max-width: 768px) {
    .demo-accounts {
        grid-template-columns: 1fr;
    }
    
    .login-container {
        max-width: 100%;
    }
}

@media (max-width: 640px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    
    .login-card {
        padding: var(--spacing-lg);
    }
    
    .logo-image img {
        max-width: 220px;
    }
    
    .logo-title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .role-options {
        grid-template-columns: 1fr;
    }
    
    .demo-notice {
        padding: var(--spacing-md);
    }
    
    .form-options {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }
}