/* フォーム専用CSS - モダンビジネスデザイン */

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

:root {
    --primary-color: #637cd0;
    --secondary-color: #64748b;
    --success-color: #256ca9;
    --warning-color: #d97706;
    --error-color: #dc2626;
    --bg-color: #f8fafc;
    --bg-white: #ffffff;
    --bg-white2:#ffffffbd;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --border-focus: #3b82f6;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(90deg, rgba(222, 249, 232, 1), rgba(181, 237, 244, 1));
    min-height: 100vh;
    overflow-x: hidden;
}

/* パーティクル背景 */
.particles-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(0deg, #000000 0, #1B2735 36%, #1B2735 53%, #1B2735 71%, #000000 91%, #000000 100%);
    z-index: -1;
    overflow: hidden;
}

#stars, #stars2, #stars3 {
    position: absolute;
    top: 0;
    left: 0;
    background: transparent;
}

#stars {
    width: 1px;
    height: 1px;
    animation: animStar 50s linear infinite;
}

#stars2 {
    width: 2px;
    height: 2px;
    animation: animStar 100s linear infinite;
}

#stars3 {
    width: 3px;
    height: 3px;
    animation: animStar 150s linear infinite;
}

@keyframes animStar {
    from { transform: translateY(0px); }
    to { transform: translateY(-2000px); }
}

.field-error {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    padding: 8px 12px;
    background: #fef2f2;
    border: 1px solid #fca5a5;
    border-radius: 6px;
    color: var(--error-color);
    font-size: 14px;
    font-weight: 500;
    animation: slideIn 0.2s ease-out;
}

.field-error i {
    flex-shrink: 0;
    font-size: 14px;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px;
}

/* ヘッダー */
.header {
    text-align: center;
    margin-bottom: 48px;
    padding: 32px;
    /*background: var(--bg-white2);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);*/
}

.header h1 {
    font-size: clamp(24px, 4vw, 32px);
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
    line-height: 1.2;
}

.company-name {
    font-size: 18px;
    color: #7facee;
    font-weight: 500;
}

/* プログレスインジケーター - モダンデザイン */
.progress-wrapper {
    margin-bottom: 48px;
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 0;
}

.progress-container {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 24px;
    background: var(--bg-white2);
    border-radius: 100px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.progress-container::before {
    content: '';
    position: absolute;
    top: 38%;
    left: 15%;
    right: 15%;
    height: 4px;
    background: linear-gradient(90deg, var(--border-color) 0%, var(--border-color) 100%);
    border-radius: 2px;
    z-index: 1;
    transition: all 0.8s ease;
}

.progress-container.step-2::before {
    background: linear-gradient(90deg, var(--success-color) 0%, var(--success-color) 33%, var(--border-color) 33%, var(--border-color) 100%);
}

.progress-container.step-3::before {
    background: linear-gradient(90deg, var(--success-color) 0%, var(--success-color) 66%, var(--border-color) 66%, var(--border-color) 100%);
}

.progress-container.step-4::before {
    background: linear-gradient(90deg, var(--success-color) 0%, var(--success-color) 100%);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
    flex: 1;
    transition: all 0.3s ease;
}

.step-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--bg-white);
    border: 4px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    color: var(--text-muted);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.step-number {
    transition: all 0.3s ease;
}

.step-check {
    position: absolute;
    font-size: 20px;
    transition: all 0.3s ease;
}

.progress-step.active .step-circle {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1d4ed8 100%);
    color: white;
    transform: scale(1.15);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
}

.progress-step.completed .step-circle {
    background: linear-gradient(135deg, var(--success-color) 0%, #047857 100%);
    border-color: var(--success-color);
    color: white;
    animation: completePulse 0.6s ease-out;
}

.progress-step.completed .step-number {
    opacity: 0;
    transform: scale(0);
}

.progress-step.completed .step-check {
    opacity: 1;
    transform: scale(1);
    display: block !important;
}

@keyframes completePulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.step-label {
    margin-top: 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.progress-step.active .step-label {
    color: var(--primary-color);
    font-weight: 700;
    transform: translateY(-2px);
}

.progress-step.completed .step-label {
    color: var(--success-color);
    font-weight: 600;
}

/* フォームページ */
.form-page {
    display: none;
    background: var(--bg-white2);
    border-radius: var(--border-radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.form-page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.page-header {
    margin-bottom: 40px;
}

.page-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-header h2 i {
    font-size: 24px;
}

.intro-text, .page-header > p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.intro-text p.note {
    background: #fef3c7;
    border: 1px solid #fde68a;
    border-radius: var(--border-radius);
    padding: 16px;
    margin: 16px 0;
    font-size: 14px;
}

.file-requirements {
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    border-radius: var(--border-radius);
    padding: 24px;
    margin: 24px 0;
        word-wrap: break-word;
    overflow-wrap: break-word;
}

.file-requirements h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 12px;
}

.file-requirements ul {
    margin: 12px 0 12px 20px;
}

.file-requirements li {
    word-break: break-all;
    margin-bottom: 8px;
    line-height: 1.6;
}

/* フォームレイアウト */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

/* ラベル */
label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 15px;
}

.required {
    color: var(--error-color);
    margin-left: 4px;
}

/* 入力フィールド */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px;
    line-height: 1.5;
    transition: all 0.2s ease;
    background: var(--bg-white);
    font-family: inherit;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
    transform: translateY(-1px);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 48px;
}

/* ラジオボタンとチェックボックス */
.theme-grid, .checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.theme-option, .checkbox-option {
    display: flex;
    align-items: flex-start;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-white);
    transition: all 0.2s ease;
    cursor: pointer;
}

.theme-option:hover, .checkbox-option:hover {
    border-color: var(--border-focus);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.theme-option input[type="radio"],
.checkbox-option input[type="checkbox"] {
    width: auto;
    margin-right: 12px;
    margin-top: 2px;
    flex-shrink: 0;
}

.theme-option input[type="radio"]:checked + label,
.checkbox-option input[type="checkbox"]:checked + label {
    color: var(--primary-color);
    font-weight: 600;
}

.theme-option:has(input:checked),
.checkbox-option:has(input:checked) {
    border-color: var(--primary-color);
    background: #f0f9ff;
}

.theme-option label, .checkbox-option label {
    cursor: pointer;
    margin: 0;
    font-weight: 500;
    line-height: 1.5;
}

/* ファイルアップロード */
.file-upload-wrapper {
    position: relative;
}

.file-input {
    position: absolute;
    opacity: 0;
    z-index: -1;
}

.file-upload-area {
    border: 3px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 48px 24px;
    text-align: center;
    background: #fafafa;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-upload-area:hover {
    border-color: var(--primary-color);
    background: #f0f9ff;
}

.file-upload-area i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: 16px;
    display: block;
}

.file-upload-area p {
    margin: 8px 0;
    color: var(--text-secondary);
}

.file-upload-area .file-info {
    font-size: 14px;
    color: var(--text-muted);
}

.file-selected {
    margin-top: 16px;
    padding: 16px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-selected i {
    color: var(--success-color);
    font-size: 18px;
}

.file-selected .file-name {
    font-weight: 600;
    color: var(--text-primary);
}

.file-selected .file-size {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ボタン */
.btn {
    padding: 16px 32px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    font-family: inherit;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1d4ed8 100%);
    color: white;
}

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

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #047857 100%);
    color: white;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* ナビゲーション */
.form-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.form-navigation .btn {
    min-width: 120px;
}

/* 確認ページ */
.confirmation-section {
    margin-bottom: 32px;
    padding: 24px;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.confirmation-section h3 {
    color: var(--primary-color);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.confirmation-item {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 16px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e2e8f0;
}

.confirmation-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.confirmation-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.confirmation-value {
    color: var(--text-primary);
    word-break: break-word;
    overflow-wrap: break-word;
}

.file-attachment {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--border-radius);
    margin-top: 8px;
}

.file-attachment i {
    color: var(--success-color);
}

/* 完了ページ */
.completion-content {
    text-align: center;
    padding: 48px 24px;
}

.success-icon {
    font-size: 80px;
    color: var(--success-color);
    margin-bottom: 32px;
}

.completion-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 32px;
}

.completion-details {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--border-radius);
    padding: 24px;
    margin: 32px 0;
    text-align: left;
}

.completion-info {
    margin: 32px 0;
    color: var(--text-secondary);
    line-height: 1.8;
}

.completion-actions {
    margin-top: 48px;
}

/* ローディング */
.loading {
    text-align: center;
    padding: 48px;
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 24px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}



/* レスポンシブデザイン */
@media (max-width: 768px) {
    .container {
        padding: 16px 12px; /* 修正: 16px → 12px */
    }
    
    .header {
        padding: 20px 12px; /* 修正: 24px 16px → 20px 12px */
        margin-bottom: 24px; /* 修正: 32px → 24px */
    }
    
    .header h1 {
        font-size: 24px;
    }
    
    .form-page {
        padding: 20px; /* 修正: 24px 16px → 20px */
        margin: 0 -8px; /* 追加 */
        border-radius: 0; /* 追加 */
        box-shadow: none; /* 追加 */
    }
    
    .page-header h2 {
        font-size: 24px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* プログレスバー関連を完全に書き換え */
    .progress-wrapper {
        margin-bottom: 32px; /* 修正: 48px → 32px */
        position: static; /* 追加 */
        padding: 8px; /* 追加 */
    }
    
    .progress-container {
        padding: 16px 8px; /* 修正: 24px → 16px 8px */
        max-width: 100%; /* 追加 */
        box-shadow: var(--shadow-md); /* 修正 */
        overflow-x: auto; /* 削除（元のコードから削除） */
    }
    
    .progress-container::before {
        left: 20%; /* 修正: 15% → 20% */
        right: 20%; /* 修正: 15% → 20% */
    }
    
    .progress-step {
        min-width: 80px;
    }
    
    .step-circle {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }
    
    .step-label {
        font-size: 10px; /* 修正: 11px → 10px */
        margin-top: 8px;
        white-space: normal; /* 追加 */
        max-width: 60px; /* 追加 */
        line-height: 1.2; /* 追加 */
    }
    
    /* ファイル要件の修正 */
    .file-requirements {
        padding: 16px; /* 追加 */
        margin: 16px -8px; /* 追加 */
        border-radius: 0; /* 追加 */
    }
    
    .file-requirements ul {
        margin-left: 16px; /* 追加 */
        padding-right: 8px; /* 追加 */
    }
    
    .theme-grid, .checkbox-grid {
        grid-template-columns: 1fr;
    }
    
    .form-navigation {
        flex-direction: column-reverse;
        gap: 12px;
    }
    
    .form-navigation .btn {
        width: 100%;
    }
    
    .confirmation-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .file-upload-area {
        padding: 32px 16px;
    }
    
    .file-upload-area i {
        font-size: 36px;
    }
    
    .completion-content {
        padding: 32px 16px;
    }
    
    .success-icon {
        font-size: 60px;
    }
    
    .completion-content h2 {
        font-size: 24px;
    }
}

/* @media (max-width: 480px) を以下に置き換え */
@media (max-width: 480px) {
    /* プログレス関連の追加修正 */
    .progress-wrapper {
        padding: 4px; /* 追加 */
    }
    
    .progress-container {
        padding: 12px 4px; /* 追加 */
        border-radius: 50px; /* 追加 */
    }
    
    .progress-step {
        padding: 0 2px; /* 追加 */
    }
    
    .step-circle {
        width: 36px; /* 修正: 40px → 36px */
        height: 36px; /* 修正: 40px → 36px */
        font-size: 12px; /* 修正: 14px → 12px */
    }
    
    .step-label {
        font-size: 9px; /* 追加 */
        margin-top: 6px; /* 追加 */
        max-width: 50px; /* 追加 */
    }
    
    .header h1 {
        font-size: 20px;
        line-height: 1.3;
    }
    
    .page-header h2 {
        font-size: 20px;
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .form-page {
        padding: 16px 12px; /* 追加 */
    }
    
    /* ファイル要件の追加修正 */
    .file-requirements {
        font-size: 14px; /* 追加 */
    }
    
    .file-requirements h4 {
        font-size: 15px; /* 追加 */
    }
    
    .file-requirements strong {
        display: inline-block; /* 追加 */
        margin-right: 4px; /* 追加 */
    }
    
    .btn {
        padding: 14px 24px;
        font-size: 15px;
    }
    
    input[type="text"],
    input[type="email"],
    input[type="tel"],
    input[type="url"],
    select,
    textarea {
        padding: 12px; /* 修正: 14px → 12px */
        font-size: 16px; /* 修正: 15px → 16px（iOS zoom防止） */
    }
}

/* 印刷用スタイル */
@media print {
    body {
        background: white;
    }
    
    .container {
        max-width: none;
        margin: 0;
        padding: 0;
    }
    
    .progress-wrapper,
    .form-navigation,
    .btn {
        display: none;
    }
    
    .form-page {
        display: block !important;
        box-shadow: none;
        border: none;
        page-break-after: always;
    }
    
    .form-page:last-child {
        page-break-after: auto;
    }
}