@charset "UTF-8";

/* ==========================================================================
   CSS Reset & Base Settings
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Zen Kaku Gothic New', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f7f7f7;
    color: #333333;
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   Layout Container (Mobile First, Max-width 600px)
   ========================================================================== */
.lp-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background-color: #ffffff;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   Header Section
   ========================================================================== */
.site-header {
    background-color: #ffffff;
    padding: 15px 20px;
    text-align: center;
    border-bottom: 1px solid #eaeaea;
}

.site-header .logo {
    font-family: 'Noto Serif JP', serif;
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.15em;
    color: #4a4a4a;
    text-transform: uppercase;
}

/* ==========================================================================
   Manga Section (Seamless scroll)
   ========================================================================== */
.manga-section {
    width: 100%;
    background-color: #ffffff;
    font-size: 0; /* 画像間の謎の隙間防止 */
    line-height: 0;
}

.manga-image {
    display: block;
    width: 100%;
    height: auto;
    margin: 0;
    padding: 0;
    border: none;
}

/* ==========================================================================
   Message Section (Story Appeal)
   ========================================================================== */
.message-section {
    padding: 60px 30px;
    text-align: center;
    background: linear-gradient(to bottom, #ffffff, #faf9f6);
}

.message-section .subtitle {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.1rem;
    color: #a38b75;
    margin-bottom: 15px;
    letter-spacing: 0.2em;
    font-weight: 600;
}

.message-section .main-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.5rem;
    color: #2b2b2b;
    line-height: 2;
    margin-bottom: 35px;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.message-section .description {
    font-size: 0.95rem;
    color: #555555;
    line-height: 2;
    text-align: justify;
    text-justify: inter-character;
    margin: 0 auto;
    max-width: 480px;
    letter-spacing: 0.03em;
}

.message-section .description p {
    margin-bottom: 15px;
}

.message-section .description p:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   CTA Section (Call to Action)
   ========================================================================== */
.cta-section {
    padding: 50px 30px 70px;
    text-align: center;
    background-color: #faf9f6;
}

.cta-box {
    background-color: #ffffff;
    border: 1px solid #f2efe9;
    border-radius: 12px;
    padding: 35px 20px;
    box-shadow: 0 10px 30px rgba(163, 139, 117, 0.08);
}

.cta-tag {
    display: inline-block;
    background-color: #e5dfd3;
    color: #6e6456;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
    letter-spacing: 0.1em;
}

.cta-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.3rem;
    color: #2b2b2b;
    margin-bottom: 12px;
    font-weight: 600;
}

.cta-text {
    font-size: 0.9rem;
    color: #666666;
    margin-bottom: 30px;
    line-height: 1.6;
}

/* Premium Instagram Button */
.btn-instagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
    padding: 18px 24px;
    font-size: 1rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    border-radius: 50px;
    box-shadow: 0 8px 20px rgba(220, 39, 67, 0.25);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-instagram:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(220, 39, 67, 0.35);
}

.btn-instagram:active {
    transform: translateY(1px);
}

.btn-instagram svg {
    fill: currentColor;
    width: 22px;
    height: 22px;
}

/* Premium LINE Button & Components */
.cta-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, #e2dfd8, transparent);
    margin: 40px auto;
    width: 80%;
}

.cta-tag-line {
    background-color: #d8ebd5 !important;
    color: #4a6644 !important;
}

.btn-line {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
    padding: 18px 24px;
    font-size: 1rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    background-color: #06C755;
    border-radius: 50px;
    box-shadow: 0 8px 20px rgba(6, 199, 85, 0.25);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-line:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(6, 199, 85, 0.35);
}

.btn-line:active {
    transform: translateY(1px);
}

.btn-line svg {
    fill: currentColor;
    width: 22px;
    height: 22px;
}

/* ==========================================================================
   Footer Section
   ========================================================================== */
.site-footer {
    background-color: #ffffff;
    padding: 40px 20px;
    text-align: center;
    border-top: 1px solid #eaeaea;
    margin-top: auto;
}

.footer-logo {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.1rem;
    color: #4a4a4a;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 0.1em;
}

.footer-tagline {
    font-size: 0.8rem;
    color: #888888;
    margin-bottom: 25px;
    letter-spacing: 0.05em;
}

.copyright {
    font-size: 0.7rem;
    color: #b0b0b0;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   Animation / Smooth Scroll
   ========================================================================== */
html {
    scroll-behavior: smooth;
}