/* ===== GLOBAL STYLES ===== */
:root {
    --dark-bg: #000000;
    --dark-secondary: #1a1a2e;
    --neon-blue: #4cc9f0;
    --neon-magenta: #f72585;
    --neon-purple: #7209b7;
    --text-light: #f8f9fa;
    --text-gray: #adb5bd;
    --transition: all 0.3s ease;
    --form-bg: #1e1e24;
    --form-border: #2a2a35;
    --input-bg: #2c2c38;
    --input-focus: #3a3a4a;
    --success: #2ecc71;
    --error: #e74c3c;
    --heading-color: #4cc9f0;
    --section-heading-color: #f72585;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

.container {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 15px;
}

a {
    text-decoration: none;
    color: var(--text-light);
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-heading {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--section-heading-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--neon-purple);
    text-transform: uppercase;
}

.section-title .accent {
    color: var(--neon-blue);
    position: relative;
}

.section-title .accent::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--neon-magenta);
    border-radius: 2px;
}

.section-description {
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 3rem;
    font-size: 1.1rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== FORM STYLES ===== */
.form-section, .section-card {
    background-color: #121212;
    border-radius: 8px;
    margin-bottom: 30px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.section-card {
    margin-top: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-description {
    font-size: 14px;
    color: #999;
    margin-top: 5px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.form-group:last-child {
    margin-bottom: 0;
}

h2 {
    font-size: 32px;
    font-weight: 700;
    color: #EEEEEE;
    margin-bottom: 15px;
    margin-top: 10px;
    line-height: 1.4;
    position: relative;
    padding-bottom: 10px;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, var(--neon-blue), var(--neon-magenta));
    border-radius: 2px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--neon-blue);
}

.additional-sections-input label {
    display: inline-block !important;
    margin-bottom: 0 !important;
}

input[type="text"],
input[type="url"],
input[type="date"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: 12px 15px;
    border-radius: 5px;
    border: 1px solid var(--form-border);
    background-color: var(--input-bg);
    color: var(--text-light);
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 16px;
    transition: var(--transition);
}

input[type="text"]:focus,
input[type="url"]:focus,
input[type="date"]:focus,
input[type="email"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--neon-blue);
    background-color: var(--input-focus);
    box-shadow: 0 0 0 2px rgba(76, 201, 240, 0.3);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-gray);
    opacity: 0.7;
}

/* ===== CHECKBOX GRID ===== */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 10px;
}

.checkbox-item {
    display: flex;
    align-items: center;
}

.checkbox-item input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--neon-blue);
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    cursor: pointer;
    background-color: var(--input-bg);
}

.checkbox-item input[type="checkbox"]:checked {
    background-color: var(--neon-blue);
}

.checkbox-item input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    color: var(--dark-bg);
    font-size: 14px;
    font-weight: bold;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.checkbox-item label {
    cursor: pointer;
    margin-bottom: 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== OTHER INPUT FIELD ===== */
.other-input {
    display: none;
    margin-top: 10px;
}

.other-input.show {
    display: block;
}

/* ===== FILE UPLOAD ===== */
.file-upload-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.file-upload-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 15px;
    border: 1px solid #333;
    border-radius: 8px;
    background: var(--dark-secondary);
    min-height: 140px;
    position: relative;
}

.file-upload-label {
    font-weight: 600;
    color: var(--neon-blue);
    margin-bottom: 4px;
    font-size: 14px;
}

.file-upload-note {
    font-size: 11px;
    color: #aaa;
    margin: 0;
    margin-top: -4px;
    font-style: italic;
    line-height: 1.3;
}

.file-upload {
    width: 100%;
    padding: 8px;
    border: 1px solid #555;
    border-radius: 4px;
    font-size: 14px;
    background: var(--dark-bg);
    color: #fff;
}

.file-name {
    display: block;
    font-size: 0.85rem;
    color: #ccc;
    margin-top: 5px;
    word-break: break-all;
}


.remove-file-upload {
    position: absolute;
    top: 8px;
    right: 8px;
    background-color: var(--neon-magenta);
    color: white;
    border: none;
    padding: 4px 8px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s ease;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-file-upload:hover {
    background-color: #e91e63;
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .file-upload-container {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .file-upload-group {
        min-height: 120px;
        padding: 12px;
    }
}

/* ===== BUTTON SETTINGS ===== */
.button-setting {
    background-color: var(--input-bg);
    border-radius: 5px;
    padding: 15px;
    margin-bottom: 15px;
    position: relative;
}

.button-setting-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

.button-setting-field {
    margin-bottom: 10px;
}

.remove-button {
    background-color: var(--error);
    color: var(--text-light);
    border: none;
    border-radius: 5px;
    padding: 5px 10px;
    cursor: pointer;
    font-size: 0.85rem;
    margin-top: 10px;
}

.add-button {
    background-color: var(--neon-blue);
    color: var(--dark-bg);
    border: none;
    border-radius: 5px;
    padding: 10px 15px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    margin-top: 10px;
}

.add-button:hover {
    background-color: var(--neon-magenta);
    color: var(--text-light);
}

/* ===== DEADLINE & PLAN SECTION ===== */
#deadline-plan-section {
    background-color: var(--dark-bg);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    padding: 20px;
    margin-bottom: 30px;
    color: var(--text-light);
    border: 1px solid #333;
}

#deadline-plan-section h2 {
    color: var(--text-light);
}

#deadline-plan-section label {
    color: var(--neon-blue);
}

.plan-selection-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.plan-comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.plan-card {
    background-color: #121212;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
    position: relative;
    transition: transform 0.3s ease;
    color: #FFFFFF;
}

.plan-card, 
.plan-card h3, 
.plan-card p, 
.plan-card li {
  color: #FFFFFF !important;
}

.plan-card:hover {
    transform: translateY(-5px);
}

.plan-card.popular {
    border: 2px solid #007ACC;
}

.popular-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background-color: #007ACC;
    color: #fff;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.plan-price {
    margin-bottom: 15px;
}

.original-price {
    display: inline-block;
    color: #888;
    text-decoration: line-through;
    margin-right: 10px;
    font-size: 1rem;
}

.discount-price {
    display: block;
    color: #007ACC;
    font-weight: 700;
    font-size: 1.5rem;
    margin-top: 5px;
}

.plan-description {
    color: #666;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.feature-list {
    list-style: none;
    margin: 0 0 20px 0;
    padding: 0;
}

.feature-list li {
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    line-height: 1.4;
    color: #333;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background-color: #007ACC;
    color: #fff;
    border-radius: 50%;
    font-size: 0.75rem;
    margin-right: 10px;
    flex-shrink: 0;
}

.plan-support {
    border-top: 1px solid #eee;
    padding-top: 15px;
}

.plan-support p {
    margin-bottom: 5px;
    color: #333;
}

/* ===== DEADLINE & BUDGET ===== */
.deadline-budget {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

/* ===== SUBMIT BUTTON ===== */
.form-submit {
    text-align: center;
    margin-top: 40px;
}

.submit-button {
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    color: var(--text-light);
    border: none;
    border-radius: 50px;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(76, 201, 240, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-button:hover {
    background: linear-gradient(135deg, var(--neon-magenta), var(--neon-purple));
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(247, 37, 133, 0.4);
}

/* ===== CHECKBOX SELECTION LIMIT ===== */
/* CSS-only implementation for limiting checkbox selection based on plan */

/* Message moved to HTML */

/* Simple plan message */
#plan-select[value="simple"] ~ #sections-checkbox-grid::after {
    content: "シンプルLPプラン: 最大4セクションまで選択可能";
    color: var(--neon-magenta);
}

/* Standard plan message */
#plan-select[value="standard"] ~ #sections-checkbox-grid::after {
    content: "スタンダードLPプラン: 最大7セクションまで選択可能";
    color: var(--neon-blue);
}

/* Hide all checkboxes when they exceed the limit */
#plan-select:not(:checked) ~ #sections-checkbox-grid input[type="checkbox"]:nth-of-type(n+5):not(:checked) {
    opacity: 0.5;
    pointer-events: none;
}

#plan-select:not(:checked) ~ #sections-checkbox-grid input[type="checkbox"]:nth-of-type(n+5):not(:checked) + label {
    color: var(--text-gray);
    opacity: 0.5;
}

/* When simple plan is selected, limit to 4 checkboxes */
#plan-select[value="simple"] ~ #sections-checkbox-grid input[type="checkbox"]:nth-of-type(n+5):not(:checked) {
    opacity: 0.5;
    pointer-events: none;
}

#plan-select[value="simple"] ~ #sections-checkbox-grid input[type="checkbox"]:nth-of-type(n+5):not(:checked) + label {
    color: var(--text-gray);
    opacity: 0.5;
}

/* When standard plan is selected, limit to 7 checkboxes */
#plan-select[value="standard"] ~ #sections-checkbox-grid input[type="checkbox"]:nth-of-type(n+8):not(:checked) {
    opacity: 0.5;
    pointer-events: none;
}

#plan-select[value="standard"] ~ #sections-checkbox-grid input[type="checkbox"]:nth-of-type(n+8):not(:checked) + label {
    color: var(--text-gray);
    opacity: 0.5;
}

/* ===== BUTTON SETTING STYLES ===== */
.button-setting {
    position: relative;
    margin-bottom: 20px;
    padding: 15px;
    background: var(--dark-secondary);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.button-setting-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: 15px;
    align-items: end;
}

.button-setting-field {
    display: flex;
    flex-direction: column;
}

.button-setting .remove-button {
    width: 32px;
    height: 32px;
    min-width: 32px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 10px;
    flex-shrink: 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(231, 76, 60, 0.3);
}

.button-setting .remove-button:hover {
    background: linear-gradient(135deg, #c0392b, #a93226);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.4);
}

.button-setting .remove-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(231, 76, 60, 0.3);
}

/* ===== BUTTON POSITION OTHER CONTAINER ===== */
.button-position-other-container {
    grid-column: 1 / -1;
    margin-top: 15px;
    padding: 15px;
    background: var(--dark-primary);
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.button-position-other-container label {
    color: var(--neon-blue);
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: block;
}

.button-position-other-container input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 4px;
    border: 1px solid var(--form-border);
    background-color: var(--input-bg);
    color: var(--text-light);
    font-size: 14px;
}

.button-position-other-container input:focus {
    border-color: var(--neon-blue);
    background-color: var(--input-focus);
    box-shadow: 0 0 0 2px rgba(76, 201, 240, 0.3);
}


/* ===== PC表示（768px以上）での独自ドメイン欄調整 ===== */
@media (min-width: 769px) {
    .domain-input-container input[type="text"] {
        width: 100%;
    }
    
    .domain-input-container label {
        font-size: 14px;
    }
    
    /* オプション選択欄を1行表示に */
    #options-checkbox-grid {
        display: flex;
        flex-wrap: nowrap;
        gap: 15px;
        overflow-x: auto;
        width: 100%;
    }
    
    #options-section .checkbox-item {
        flex: 0 0 auto;
        min-width: 280px;
        margin-bottom: 0;
    }
    
    #options-section .checkbox-item label {
        white-space: nowrap;
        width: 260px;
    }
}

/* ===== モバイル対応 ===== */
@media (max-width: 768px) {
    .domain-input-container {
        max-width: 100%;
        overflow: hidden;
    }
    
    .domain-input-container label {
        font-size: 14px;
    }
    
    .domain-input-container .form-description {
        white-space: normal !important;
        font-size: 12px !important;
        line-height: 1.4 !important;
        word-wrap: break-word !important;
    }
    
    .domain-input-container input[type="text"] {
        max-width: 100%;
        width: 100%;
        box-sizing: border-box;
    }
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 600px) {
    .container {
        width: 100%;
        padding: 20px 10px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-heading {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 24px;
    }
    
    .checkbox-grid,
    .file-upload-container,
    .button-setting-row,
    .deadline-budget,
    .plan-comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .plan-card {
        margin-bottom: 20px;
    }
    
    .discount-price {
        font-size: 1.3rem;
    }
    
    .form-section {
        padding: 15px;
    }
    
    .submit-button {
        width: 100%;
        padding: 12px 20px;
    }
}

.status-message {
  color: var(--neon-blue);
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 15px;
  line-height: 1.5;
}

/* プラン詳細スタイル */
.plan-details {
  color: var(--text-light);
}

.plan-details h4 {
  color: var(--neon-blue);
  margin: 20px 0 10px 0;
  font-size: 1.1rem;
}

.plan-details ol, .plan-details p {
  color: var(--text-light);
  margin-bottom: 15px;
}

.plan-details ol {
  padding-left: 20px;
}

/* 機能リストスタイル */
.feature-list {
  list-style: none;
  padding: 0;
  margin: 15px 0;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 8px;
  padding: 5px 0;
}

.feature-icon {
  width: 20px;
  height: 20px;
  background-color: var(--neon-blue);
  border-radius: 50%;
  margin-right: 10px;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-title {
  color: var(--neon-blue);
  font-weight: 600;
  margin-right: 10px;
  width: 140px;
  flex-shrink: 0;
}

.feature-desc {
  color: var(--text-light);
  font-weight: 400;
  flex: 1;
}

/* プランサポート情報スタイル */
.plan-support {
  margin-top: 20px;
}

.plan-support p {
  margin-bottom: 15px;
  color: var(--text-light);
}

.plan-support strong {
  color: var(--neon-blue);
  font-weight: 600;
}

.plan-support ul {
  list-style: none;
  padding: 0;
  margin: 10px 0;
}

.plan-support ul li {
  color: var(--text-light);
  margin-bottom: 5px;
  padding-left: 15px;
}

/* 支払い条件ボックスのスタイル調整 */
.payment-terms {
  background: rgba(76, 201, 240, 0.05);
  border: 1px solid rgba(76, 201, 240, 0.2);
  border-radius: 8px;
  padding: 20px;
  margin: 20px 0;
  color: var(--neon-blue);
}

.payment-terms p {
  margin: 0;
}

/* プラン比較表スタイル */
.plan-comparison-table {
  margin: 20px 0;
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--form-bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.comparison-table th,
.comparison-table td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid var(--form-border);
  border-right: 1px solid var(--form-border);
  vertical-align: top;
}

.comparison-table th:last-child,
.comparison-table td:last-child {
  border-right: none;
}

.comparison-table th {
  background: var(--dark-secondary);
  color: var(--text-light);
  font-weight: 600;
}

.feature-column {
  width: 200px;
  background: var(--dark-secondary);
  color: var(--neon-blue);
  font-weight: 600;
  position: sticky;
  left: 0;
  z-index: 10;
}

.simple-plan-column,
.standard-plan-column {
  width: 300px;
}

.standard-plan-column {
  background: rgba(76, 201, 240, 0.05);
}

.plan-header {
  text-align: center;
  position: relative;
  padding-top: 10px;
}

.plan-header h3 {
  margin: 0 0 10px 0;
  color: var(--neon-blue);
  font-size: 1.2rem;
}

.standard-plan-title {
  margin-top: 5px !important;
}

.plan-price {
  color: var(--neon-magenta);
  font-size: 1.1rem;
  font-weight: 600;
}

.popular-badge {
  background: var(--neon-magenta);
  color: white;
  padding: 4px 12px;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 10px;
  display: inline-block;
}

.feature-name {
  background: var(--dark-secondary);
  color: var(--neon-blue);
  font-weight: 600;
  position: sticky;
  left: 0;
  z-index: 5;
}

.comparison-table td {
  color: var(--text-light);
  line-height: 1.5;
}

.comparison-table td small {
  color: var(--text-gray);
  font-size: 0.8rem;
  line-height: 1.3;
  display: block;
  margin-top: 5px;
}

.not-included {
  color: var(--text-gray);
  text-align: center;
  font-style: italic;
}

.included {
  color: var(--neon-blue);
  font-weight: 500;
}

/* ===== TABLE RESPONSIVE WRAPPER ===== */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 20px 0;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.plan-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--form-bg);
}

.plan-table th,
.plan-table td {
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  text-align: left;
  vertical-align: top;
  word-break: break-word;
}

/* プラン差分の文字色分け */
.plan-difference-text {
  color: var(--neon-magenta);
  font-weight: 600;
}

.plan-table td.not-included {
  color: var(--text-gray);
  text-align: center;
  font-style: italic;
}

.plan-table td.included {
  color: var(--neon-blue);
  font-weight: 500;
}

/* オプション選択欄のスタイル */
#options-section {
  margin: 20px 0;
  padding: 20px;
  background: var(--form-bg);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.simple-options,
.standard-options {
  display: none;
}

/* オプション選択欄専用のスタイル */
#options-section .checkbox-item {
  margin-bottom: 15px;
}

#options-section .checkbox-item label {
  display: flex;
  align-items: center;
  padding: 12px 15px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  width: 100%;
  color: white !important;
  font-size: 14px;
  line-height: 1.4;
}

/* 通常のチェックボックス項目（セクション情報、デザイン方向性用） */
.checkbox-item {
  margin-bottom: 15px;
}

.checkbox-item label {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  color: var(--text-color);
  font-size: 14px;
  line-height: 1.4;
}

#options-section .checkbox-item label:hover {
  background: rgba(255, 255, 255, 0.1);
}

#options-section .checkbox-item input[type="checkbox"] {
  margin-right: 12px;
  flex-shrink: 0;
}

.checkbox-item label:hover {
  background: rgba(255, 255, 255, 0.1);
}

.checkbox-item input[type="checkbox"] {
  margin-right: 12px;
  flex-shrink: 0;
}

.additional-sections-input {
  margin-top: 5px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.additional-sections-input label {
  font-size: 14px;
  color: var(--text-color);
  margin: 0;
  white-space: nowrap;
}

.additional-sections-input input[type="number"] {
  width: 60px;
  padding: 4px 6px;
  background: var(--input-bg);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  color: var(--text-color);
  font-size: 14px;
}

/* お問い合わせフォーム詳細設定のスタイル */
.contact-form-details {
  margin: 20px 0;
  padding: 15px;
  background: rgba(76, 201, 240, 0.05);
  border: 1px solid rgba(76, 201, 240, 0.2);
  border-radius: 8px;
}

.contact-form-details .form-group {
  margin-bottom: 15px;
}

.contact-form-details .form-group:last-child {
  margin-bottom: 0;
}

.contact-form-details > label {
  color: var(--neon-blue);
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
}

.contact-form-details .form-group label {
  color: var(--neon-blue);
  font-weight: 600;
  font-size: 14px !important;
  margin-bottom: 8px;
  display: block;
}

.contact-form-details input,
.contact-form-details textarea {
  width: 100%;
  padding: 12px 15px;
  background: var(--input-bg);
  border: 1px solid var(--form-border);
  border-radius: 5px;
  color: var(--text-light);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  transition: var(--transition);
}

.contact-form-details input:focus,
.contact-form-details textarea:focus {
  border-color: var(--neon-blue);
  background-color: var(--input-focus);
  box-shadow: 0 0 0 2px rgba(76, 201, 240, 0.3);
}

/* スマホ表示での二重枠削除 */
@media (max-width: 768px) {
  .plan-comparison-table {
    background: transparent;
    border: none;
    box-shadow: none;
  }
}

/* ===== SNSリンク入力欄スタイル ===== */
#sns-links-section {
  margin: 20px 0;
  padding: 15px;
  background: rgba(76, 201, 240, 0.05);
  border: 1px solid rgba(76, 201, 240, 0.2);
  border-radius: 8px;
}

.sns-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin-top: 15px;
}

/* PCでも2列表示を維持（5個の入力欄対応） */
@media (min-width: 1024px) {
  .sns-links-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sns-link-item {
  display: flex;
  flex-direction: column;
}

.sns-link-item label {
  color: var(--neon-blue);
  font-size: 14px;
  margin-bottom: 5px;
  font-weight: 500;
}

.sns-link-item input[type="url"] {
  width: 100%;
  padding: 10px 12px;
  background: var(--input-bg);
  border: 1px solid var(--form-border);
  border-radius: 4px;
  color: var(--text-light);
  font-size: 14px;
  transition: var(--transition);
  box-sizing: border-box;
}

.sns-link-item input[type="url"]:focus {
  border-color: var(--neon-blue);
  background-color: var(--input-focus);
  box-shadow: 0 0 0 2px rgba(76, 201, 240, 0.3);
  outline: none;
}

/* スマホ表示でのSNSリンク入力欄 */
@media (max-width: 768px) {
  .sns-links-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .sns-link-item input[type="url"] {
    font-size: 16px;
    padding: 12px 14px;
  }
}

/* レスポンシブ対応 */
@media (max-width: 1024px) {
  .table-responsive {
    overflow-x: hidden;
    width: 100%;
  }
  
  #options-section .checkbox-item label {
    white-space: normal;
    flex-wrap: wrap;
    min-width: auto;
  }
  
  .feature-column {
    width: 180px;
  }
  
  .simple-plan-column,
  .standard-plan-column {
    width: 100%;
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .payment-terms p {
    white-space: normal;
    font-size: 0.9rem;
  }
  
  /* モバイルで表が必ず表示されるように修正 */
  .plan-table-mobile {
    display: table;
    opacity: 1;
    visibility: visible;
    width: 100%;
  }
  
  .table-responsive {
    margin: 15px 0;
  }
  
  /* モバイル時の納期・プラン縦並び */
  .plan-selection-grid {
    display: block !important;
  }
  
  .plan-selection-grid .form-group {
    margin-bottom: 20px;
  }
  
  
  /* モバイル時の価格表示 */
  .mobile-plan-prices {
    display: flex !important;
    flex-direction: column;
    gap: 15px;
    margin: 20px 0;
    padding: 15px;
    background: var(--dark-secondary);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .mobile-plan-price-card {
    padding: 15px;
    border-radius: 8px;
    border: 2px solid var(--neon-blue);
    background: var(--form-bg);
    text-align: center;
  }
  
  .mobile-plan-price-card.popular {
    border-color: var(--neon-magenta);
    position: relative;
  }
  
  .mobile-plan-price-card.popular::before {
    content: "人気プラン";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--neon-magenta);
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
  }
  
  .mobile-plan-price-card h3 {
    color: var(--neon-blue);
    font-size: 1.2rem;
    margin: 0 0 10px 0;
  }
  
  .mobile-plan-price-card .price {
    color: var(--neon-magenta);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 5px 0;
  }
  
  .mobile-plan-price-card .delivery-time {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-top: 8px;
  }
  
  .mobile-plan-table-container {
    margin-bottom: 30px;
  }
  
  .mobile-plan-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--dark-secondary);
    border: 2px solid var(--neon-blue);
    border-radius: 12px;
    overflow: hidden;
  }
  
  .mobile-plan-table.popular-plan {
    border-color: var(--neon-magenta);
  }
  
  .mobile-plan-header {
    text-align: center;
    padding: 20px;
    background: var(--dark-secondary);
  }
  
  .mobile-plan-header h3 {
    color: var(--neon-blue);
    font-size: 1.3rem;
    margin: 0 0 10px 0;
  }
  
  .mobile-plan-header .plan-price {
    color: var(--neon-magenta);
    font-size: 1.1rem;
    font-weight: bold;
  }
  
  .popular-badge {
    background: var(--neon-magenta);
    color: white;
    font-size: 0.8rem;
    padding: 4px 12px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 10px;
  }
  
  .mobile-plan-table td {
    padding: 12px 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    line-height: 1.4;
  }
  
  .mobile-plan-table td.feature-name {
    background: var(--dark-secondary);
    color: var(--neon-blue);
    font-weight: bold;
    width: 30%;
    min-width: 120px;
  }
  
  .mobile-plan-table td small {
    display: block;
    font-size: 0.8rem;
    color: #aaa;
    margin-top: 5px;
    line-height: 1.3;
  }
  
  .mobile-plan-table td.not-included {
    color: #888;
    text-align: center;
    font-style: italic;
  }
  
  .mobile-plan-table td.included {
    color: var(--neon-blue);
    font-weight: 500;
  }
}

/* スタック型テーブル（極小画面用） */
@media (max-width: 480px) {
  .plan-table {
    min-width: 100%;
  }
  
  .plan-table thead {
    display: none;
  }
  
  .plan-table,
  .plan-table tbody,
  .plan-table tr,
  .plan-table td {
    display: block;
    width: 100%;
  }
  
  .plan-table tr {
    border: 1px solid rgba(255, 255, 255, 0.15);
    margin-bottom: 12px;
    border-radius: 8px;
    background: var(--dark-secondary);
    padding: 15px;
  }
  
  .plan-table td {
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 8px 0;
    position: relative;
    padding-left: 40%;
  }
  
  .plan-table td:last-child {
    border-bottom: none;
  }
  
  .plan-table td::before {
    content: attr(data-label);
    font-weight: 700;
    color: var(--neon-blue);
    display: block;
    position: absolute;
    left: 0;
    top: 8px;
    width: 35%;
    margin-bottom: 4px;
    opacity: 0.9;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .mobile-plan-table-container {
    margin-bottom: 25px;
  }
  
  .mobile-plan-header {
    padding: 15px;
  }
  
  .mobile-plan-header h3 {
    font-size: 1.1rem;
  }
  
  .mobile-plan-header .plan-price {
    font-size: 1rem;
  }
  
  .popular-badge {
    font-size: 0.7rem;
    padding: 3px 10px;
  }
  
  .mobile-plan-table td {
    padding: 10px 12px;
    font-size: 0.9rem;
  }
  
  .mobile-plan-table td.feature-name {
    font-size: 0.9rem;
    min-width: 100px;
  }
  
  .mobile-plan-table td small {
    font-size: 0.75rem;
  }
  
  .payment-terms {
    padding: 15px;
    margin: 15px 0;
  }
  
  .payment-terms p {
    font-size: 0.8rem;
    line-height: 1.4;
  }
}



/* 重複スタイルは上記の統一スタイルで処理済み */