:root {
    --primary-color: #ff4757; /* Vibrant Red */
    --accent-blue: #2e86de;    /* Vibrant Blue */
    --header-bg: #e3f2fd;      /* Light Blue for Header */
    --card-bg: #fff5f5;        /* Light Red for Cards */
    --bg-light: #f8f9fa;       /* Very Light Gray for background */
    --text-main: #2d3436;      /* Dark Gray for text */
    --text-dim: #636e72;       /* Medium Gray for descriptions */
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
}

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

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

.background-overlay {
    background: radial-gradient(circle at top right, rgba(46, 134, 222, 0.05) 0%, transparent 70%);
    position: fixed;
    inset: 0;
    z-index: -1;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--header-bg);
    padding: 40px 0;
    text-align: center;
    border-bottom: 3px solid var(--accent-blue);
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

header h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    color: var(--accent-blue);
    margin-bottom: 5px;
}

.subtitle {
    font-family: 'Outfit', sans-serif;
    color: var(--text-dim);
    letter-spacing: 1px;
    font-size: 0.9rem;
    font-weight: 600;
}

.card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 71, 87, 0.1);
}

.intro-card {
    border-left: 6px solid var(--accent-blue);
    font-size: 1.05rem;
}

/* Form Styles */
.form-group-row {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.form-group {
    flex: 1;
    min-width: 200px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: var(--text-main);
}

input[type="number"],
input[type="text"],
select {
    width: 100%;
    padding: 12px;
    background: #ffffff;
    border: 2px solid #eee;
    border-radius: 10px;
    color: var(--text-main);
    font-size: 1rem;
    transition: all 0.3s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 4px rgba(46, 134, 222, 0.1);
}

/* Radio Group */
.mode-selection {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px dashed #ddd;
}

.radio-group {
    display: flex;
    gap: 12px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    padding: 12px 18px;
    border-radius: 12px;
    cursor: pointer;
    border: 2px solid #eee;
    transition: all 0.3s;
    font-weight: 500;
}

.radio-label:hover {
    border-color: var(--accent-blue);
}

.radio-label:has(input:checked) {
    border-color: var(--accent-blue);
    background: var(--header-bg);
    color: var(--accent-blue);
}

.radio-label input {
    display: none;
}

.evidence-section {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.evidence-column {
    flex: 1;
    min-width: 300px;
}

.input-row {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.btn-add {
    background: #fff;
    color: var(--accent-blue);
    border: 2px solid var(--accent-blue);
    padding: 10px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: bold;
    width: 100%;
    transition: all 0.3s;
}

.btn-add:hover {
    background: var(--header-bg);
}

.btn-remove {
    background: #eee;
    color: #999;
    border: none;
    border-radius: 8px;
    width: 40px;
    cursor: pointer;
}

.btn-remove:hover {
    background: var(--danger);
    color: #fff;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
    border: none;
    padding: 18px 50px;
    font-size: 1.25rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 6px 20px rgba(255, 71, 87, 0.3);
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 71, 87, 0.4);
    background: #ff5e6c;
}

.result-actions {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.btn-secondary {
    background: #f1f2f6;
    color: var(--text-dim);
    border: 2px solid #dfe4ea;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: var(--header-bg);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(46, 134, 222, 0.1);
}

/* Modal/Sidebar Menu */
#menu-btn {
    background: white;
    border: 2px solid #eee;
    border-radius: 12px;
}

#side-menu {
    background: white;
}

/* Result Card */
.result-header {
    border-bottom: 3px solid var(--primary-color);
    margin-bottom: 25px;
    padding-bottom: 15px;
}

.result-header h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.result-content {
    background: #ffffff;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid #eee;
    font-size: 1.1rem;
    color: var(--text-main);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}

.affiliate-section h3 {
    color: var(--accent-blue);
    text-align: center;
    margin-bottom: 25px;
    font-size: 1.2rem;
}

.dynamic-ad-title {
    text-align: center;
    color: var(--accent-blue);
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px dashed #ddd;
}

/* Dynamic Ads (Synced with KikonChecker) */
.ad-item {
    background: #fff;
    padding: 15px;
    border-radius: 12px;
    border: 1px solid rgba(46, 134, 222, 0.2);
    text-align: center;
    min-width: 280px;
    max-width: 350px;
    flex: 1 1 300px;
    transition: transform 0.3s;
    box-shadow: 0 4px 10px rgba(0,0,0,0.03);
}

.ad-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}

.ad-label {
    font-size: 0.85rem;
    font-weight: bold;
    color: var(--accent-blue);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
    border-bottom: 1px solid rgba(46, 134, 222, 0.3);
    padding-bottom: 6px;
}

.ad-item img {
    display: block;
    margin: 10px auto 0;
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    border: 1px solid #eee;
}

.affiliate-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.affiliate-card {
    display: flex;
    align-items: center;
    gap: 15px;
    background: #fff;
    padding: 15px;
    border-radius: 10px;
    border: 1px solid #eee;
    text-decoration: none;
    color: var(--text-main);
    transition: transform 0.2s, background 0.2s, border-color 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.affiliate-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-blue);
    background: var(--header-bg);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.affiliate-card .icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.affiliate-card strong {
    display: block;
    color: var(--accent-blue);
    font-size: 1rem;
    margin-bottom: 2px;
}

.affiliate-card p {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin: 0;
}

.ad-item img {
    border: 1px solid #eee;
}

.loader {
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--accent-blue);
}

footer {
    border-top: 1px solid #eee;
    padding-top: 40px;
    color: var(--text-dim);
}

@media (max-width: 600px) {
    .evidence-section {
        flex-direction: column;
    }
    header h1 {
        font-size: 1.8rem;
    }
}