/* ===================================
   ペラサイト汎用テンプレート CSS
   デザインシステム + レスポンシブ対応
   =================================== */

/* --- カスタムプロパティ（カラースキーム） --- */
:root {
    --font-main: 'Noto Sans JP', sans-serif;
    --color-text: #1a1a2e;
    --color-text-light: #555;
    --color-bg: #f8f9fb;
    --color-white: #ffffff;
    --color-shadow: rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --max-width: 780px;
    --transition: 0.3s ease;
}

/* カラースキーム: blue */
.hero--blue,
.cta-box--blue {
    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --accent-light: #dbeafe;
    --gradient: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #3b82f6 100%);
}

/* カラースキーム: green */
.hero--green,
.cta-box--green {
    --accent: #16a34a;
    --accent-dark: #15803d;
    --accent-light: #dcfce7;
    --gradient: linear-gradient(135deg, #14532d 0%, #16a34a 50%, #22c55e 100%);
}

/* カラースキーム: pink */
.hero--pink,
.cta-box--pink {
    --accent: #db2777;
    --accent-dark: #be185d;
    --accent-light: #fce7f3;
    --gradient: linear-gradient(135deg, #831843 0%, #db2777 50%, #ec4899 100%);
}

/* カラースキーム: orange */
.hero--orange,
.cta-box--orange {
    --accent: #ea580c;
    --accent-dark: #c2410c;
    --accent-light: #fff7ed;
    --gradient: linear-gradient(135deg, #7c2d12 0%, #ea580c 50%, #f97316 100%);
}

/* カラースキーム: purple */
.hero--purple,
.cta-box--purple {
    --accent: #7c3aed;
    --accent-dark: #6d28d9;
    --accent-light: #ede9fe;
    --gradient: linear-gradient(135deg, #3b0764 0%, #7c3aed 50%, #8b5cf6 100%);
}

/* --- リセット・ベース --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 80px;
    /* スティッキーCTA用余白 */
}

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

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* --- セクション共通 --- */
.section {
    padding: 60px 0;
}

.section__heading {
    text-align: center;
    font-size: 1.6rem;
    font-weight: 900;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 16px;
}

.section__heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--accent, #2563eb);
    border-radius: 2px;
}

.section__heading strong {
    color: var(--accent, #2563eb);
}

/* --- ヒーロー --- */
.hero {
    background: var(--gradient);
    color: #fff;
    padding: 80px 20px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
}

.hero__inner {
    position: relative;
    z-index: 1;
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero__label {
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.85;
    margin-bottom: 12px;
}

.hero__title {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1.4;
    margin-bottom: 16px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.hero__subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 32px;
    line-height: 1.7;
}

/* --- CTAボタン --- */
.cta-btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.05rem;
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.cta-btn:hover::before {
    left: 100%;
}

.cta-btn--hero {
    background: #fff;
    color: var(--accent, #2563eb);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.cta-btn--hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.cta-btn--large,
.cta-btn--final {
    background: var(--accent, #2563eb);
    color: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    font-size: 1.15rem;
    padding: 18px 50px;
}

.cta-btn--large:hover,
.cta-btn--final:hover {
    background: var(--accent-dark, #1d4ed8);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

/* マイクロコピー */
.micro-copy {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    color: #e11d48;
    margin-bottom: 6px;
    letter-spacing: 1px;
}

/* 権威性バッジ */
.authority-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    color: #b45309;
    border: 2px solid #f59e0b;
    border-radius: 50px;
    padding: 6px 16px;
    font-size: 0.9rem;
    font-weight: 900;
    margin-bottom: 20px;
    box-shadow: 0 4px 10px rgba(245, 158, 11, 0.2);
}

.authority-badge__icon {
    font-size: 1.1rem;
    margin-right: 6px;
}

/* パルスアニメーション */
.cta-btn--final {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.5);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(37, 99, 235, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
    }
}

/* --- 商品紹介カード --- */
.product-card {
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 4px 20px var(--color-shadow);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
    transition: border-color var(--transition);
}

.product-card:hover {
    border-color: var(--accent, #2563eb);
}

.product-card__catch {
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.6;
    color: var(--color-text);
}

.product-card__badge {
    position: absolute;
    top: 16px;
    right: -30px;
    background: var(--accent, #2563eb);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 40px;
    transform: rotate(45deg);
}

/* --- メリットカード --- */
.benefits {
    background: var(--color-white);
}

.benefits__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.benefit-card {
    background: var(--color-bg);
    border-radius: var(--radius);
    padding: 30px 24px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    transition: transform var(--transition), box-shadow var(--transition);
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--color-shadow);
}

.benefit-card__number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent, #2563eb);
    line-height: 1;
    flex-shrink: 0;
    opacity: 0.7;
}

.benefit-card__text {
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.7;
    padding-top: 4px;
}

/* --- チェックリスト --- */
.check-list {
    list-style: none;
    max-width: 500px;
    margin: 0 auto;
}

.check-list__item {
    font-size: 1.05rem;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    line-height: 1.7;
}

.check-list__item:last-child {
    border-bottom: none;
}

/* --- CTAボックス --- */
.cta-box {
    background: var(--accent-light, #dbeafe);
    border-radius: var(--radius);
    padding: 48px 32px;
    text-align: center;
}

.cta-box__text {
    font-size: 0.95rem;
    color: var(--accent, #2563eb);
    font-weight: 700;
    margin-bottom: 8px;
}

.cta-box__product {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 24px;
    color: var(--color-text);
}

.cta-box--final {
    background: var(--gradient);
    color: #fff;
    padding: 60px 32px;
}

.cta-box__heading {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 12px;
}

.cta-box__catch {
    font-size: 1.1rem;
    margin-bottom: 28px;
    opacity: 0.9;
}

/* --- FAQ --- */
.faq {
    background: var(--color-white);
}

.faq__list {
    max-width: 600px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #eee;
    padding: 16px 0;
}

.faq-item__q {
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    padding: 8px 0;
    list-style: none;
    position: relative;
    padding-right: 30px;
}

.faq-item__q::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.4rem;
    color: var(--accent, #2563eb);
    transition: transform var(--transition);
}

.faq-item[open] .faq-item__q::after {
    content: '−';
}

.faq-item__a {
    padding: 12px 0 8px;
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* --- フッター --- */
.footer {
    text-align: center;
    padding: 40px 20px;
    background: #1a1a2e;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8rem;
}

.footer__text {
    margin-bottom: 8px;
}

/* --- レスポンシブ --- */
@media (min-width: 600px) {
    .hero__title {
        font-size: 2.4rem;
    }

    .benefits__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .benefit-card {
        flex-direction: column;
        text-align: center;
    }

    .benefit-card__number {
        font-size: 2.5rem;
    }
}

@media (min-width: 768px) {
    .hero {
        padding: 100px 20px 80px;
    }

    .hero__title {
        font-size: 2.8rem;
    }

    .section {
        padding: 80px 0;
    }

    .section__heading {
        font-size: 1.8rem;
    }
}

/* --- 口コミ・レビュー --- */
.reviews {
    background: var(--color-bg);
}

.reviews__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .reviews__grid {
        grid-template-columns: 1fr 1fr;
    }
}

.review-card {
    background: var(--color-white);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: 0 4px 15px var(--color-shadow);
    border-left: 4px solid var(--accent, #2563eb);
}

.review-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.review-card__stars {
    color: #fbbf24;
    font-size: 1.2rem;
    letter-spacing: 2px;
}

.review-card__user {
    font-size: 0.9rem;
    color: var(--color-text-light);
    font-weight: 700;
}

.review-card__text {
    font-size: 0.95rem;
    line-height: 1.7;
    font-style: italic;
}

/* --- 緊急性・マイクロコピー --- */
.cta-box__urgency {
    color: #e11d48;
    background: #fff1f2;
    padding: 8px 16px;
    border-radius: 5px;
    border: 1px dashed #e11d48;
    display: inline-block;
    font-size: 0.95rem;
    font-weight: 900;
    margin-bottom: 20px;
    animation: blink 2.5s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* --- スティッキーCTA --- */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    padding: 12px 20px;
    z-index: 50;
    display: flex;
    justify-content: center;
    transform: translateY(100%);
    animation: slideUp 0.5s forwards 1s;
}

@keyframes slideUp {
    to {
        transform: translateY(0);
    }
}

.sticky-cta__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--accent, #2563eb);
    color: #fff;
    width: 100%;
    max-width: 400px;
    padding: 14px 24px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition), box-shadow var(--transition);
}

.sticky-cta__btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    background: var(--accent-dark, #1d4ed8);
}

/* --- シャインエフェクト --- */
.cta-btn--shine {
    position: relative;
    overflow: hidden;
}

.cta-btn--shine::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -100%;
    width: 50%;
    height: 200%;
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.6) 50%, rgba(255, 255, 255, 0) 100%);
    transform: rotate(30deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% {
        left: -100%;
    }

    20% {
        left: 200%;
    }

    100% {
        left: 200%;
    }
}