/* ===== GLOBAL STYLES ===== */
:root {
    --dark-bg: #121212;
    --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;
    border: 1px solid #333;
    position: relative;
}

.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);
}

input[type="text"],
input[type="url"],
input[type="date"],
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,
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-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.file-upload-group {
    margin-bottom: 15px;
}

.file-upload-label {
    display: inline-block;
    padding: 10px 15px;
    background-color: var(--neon-purple);
    color: var(--text-light);
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    margin-bottom: 8px;
}

.file-upload-label:hover {
    background-color: var(--neon-magenta);
}

.file-upload {
    position: absolute;
    left: -9999px;
}

.file-name {
    display: block;
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-top: 5px;
    word-break: break-all;
}

/* ===== 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;
}

/* ===== 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;
}