/* ===== LP Specific Styles (Stylish Light Theme) ===== */

/* --- Variables --- */
:root {
    --lp-bg: transparent; /* Inherit global gradient from style.css */
    --lp-surface: #ffffff;
    --lp-surface-light: rgba(255, 255, 255, 0.5);
    --lp-text: #1a1a1a;
    --lp-text-muted: #475569;
    --lp-accent: #c5a059; /* Elegant Gold */
    --lp-accent-light: #e6c587;
    --lp-border: #e2e8f0;
    --lp-font: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    --lp-font-serif: 'Minion Pro', 'Times New Roman', 'Yu Mincho', 'Hiragino Mincho ProN', serif;
    --lp-transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* --- Base --- */
body.lp-body {
    background: var(--lp-bg);
    color: var(--lp-text);
    font-family: var(--lp-font);
    line-height: 1.8;
    margin: 0;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Typography --- */
.lp-body h1, .lp-body h2, .lp-body h3 {
    font-family: var(--lp-font-serif);
    font-weight: 400;
    margin: 0;
    letter-spacing: 0.05em;
}

/* --- Layout --- */
.lp-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- Header --- */
.lp-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 2rem;
    transition: var(--lp-transition);
    background: transparent;
    border-bottom: 1px solid transparent;
}

.lp-header.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--lp-border);
}

.lp-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lp-logo {
    color: var(--lp-accent);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-decoration: none;
}

.lp-nav {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.lp-nav a {
    color: var(--lp-text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    transition: var(--lp-transition);
    font-weight: 500;
}

.lp-nav a:hover {
    color: var(--lp-accent);
}

/* --- Buttons --- */
.lp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    text-decoration: none;
    transition: var(--lp-transition);
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 600;
}

.lp-btn-primary {
    background: var(--lp-accent);
    color: #fff;
}

.lp-btn-primary:hover {
    background: var(--lp-accent-light);
    box-shadow: 0 4px 15px rgba(197, 160, 89, 0.3);
}

.lp-btn-outline {
    background: transparent;
    color: var(--lp-text);
    border-color: var(--lp-border);
}

.lp-btn-outline:hover {
    border-color: var(--lp-accent);
    color: var(--lp-accent);
}

/* --- Hero Section --- */
.lp-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding-top: 5rem;
}

.lp-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 2rem;
}

.lp-hero-badge {
    font-size: 0.75rem;
    color: var(--lp-accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    display: block;
    animation: fadeIn 1s ease 0.2s both;
    font-weight: 600;
}

.lp-hero h1 {
    font-size: 2.8rem;
    line-height: 1.4;
    margin-bottom: 2rem;
    color: var(--lp-text);
    animation: fadeIn 1s ease 0.4s both;
    font-weight: 600;
}

.lp-hero h1 span {
    color: var(--lp-accent);
}

.lp-hero p {
    font-size: 1rem;
    color: var(--lp-text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeIn 1s ease 0.6s both;
}

.lp-hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: fadeIn 1s ease 0.8s both;
}

/* --- Section Formatting --- */
.lp-section {
    padding: 8rem 0;
    border-bottom: 1px solid var(--lp-border);
}

.lp-section:last-of-type {
    border-bottom: none;
}

.lp-section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.lp-section-header h2 {
    font-size: 2.2rem;
    color: var(--lp-text);
    margin-bottom: 1rem;
    font-weight: 600;
}

.lp-section-header h2::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: var(--lp-accent);
    margin: 1.5rem auto 0;
}

.lp-section-header p {
    color: var(--lp-text-muted);
    font-size: 1rem;
}

/* --- Features Grid --- */
.lp-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.lp-feature-card {
    text-align: center;
    padding: 2.5rem;
    background: var(--lp-surface);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    border: 1px solid var(--lp-border);
    transition: var(--lp-transition);
}

.lp-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.06);
    border-color: var(--lp-accent-light);
}

.lp-feature-icon {
    font-size: 1.8rem;
    color: var(--lp-accent);
    margin-bottom: 1.5rem;
    font-family: var(--lp-font-serif);
    font-weight: 600;
}

.lp-feature-card h3 {
    font-size: 1.2rem;
    color: var(--lp-text);
    margin-bottom: 1rem;
    font-weight: 600;
}

.lp-feature-card p {
    font-size: 0.95rem;
    color: var(--lp-text-muted);
}

/* --- Server Section --- */
.lp-server-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.lp-server-card {
    background: var(--lp-surface);
    padding: 3rem;
    border: 1px solid var(--lp-border);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
}

.lp-server-card h3 {
    font-size: 1.4rem;
    color: var(--lp-text);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.lp-server-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lp-server-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    color: var(--lp-text-muted);
}

.lp-server-list li::before {
    content: '・';
    position: absolute;
    left: 0;
    color: var(--lp-accent);
    font-weight: bold;
}

/* --- Q&A Section --- */
.lp-faq-item {
    border-bottom: 1px solid var(--lp-border);
    padding: 2rem 0;
}

.lp-faq-item:first-child {
    border-top: 1px solid var(--lp-border);
}

.lp-faq-q {
    font-size: 1.15rem;
    color: var(--lp-text);
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    gap: 1rem;
}

.lp-faq-q span.q-mark {
    color: var(--lp-accent);
    font-family: var(--lp-font-serif);
    font-weight: 700;
}

.lp-faq-a {
    color: var(--lp-text-muted);
    font-size: 1rem;
    display: flex;
    gap: 1rem;
    padding-left: 0;
}

.lp-faq-a span.a-mark {
    color: #94a3b8;
    font-family: var(--lp-font-serif);
    font-weight: 700;
}

/* --- Footer --- */
.lp-footer {
    padding: 4rem 2rem;
    text-align: center;
    border-top: 1px solid var(--lp-border);
    background: var(--lp-surface);
}

.lp-footer-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.lp-footer-nav a {
    color: var(--lp-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    font-weight: 500;
}

.lp-footer-nav a:hover {
    color: var(--lp-accent);
}

.lp-copy {
    color: #94a3b8;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}

/* --- Scroll to Top Button --- */
.lp-scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    background: var(--lp-accent);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: var(--lp-transition);
    z-index: 999;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.lp-scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.lp-scroll-top:hover {
    background: var(--lp-accent-light);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(197, 160, 89, 0.3);
    color: #fff;
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .lp-hero h1 { font-size: 2rem; }
    .lp-features { grid-template-columns: 1fr; gap: 2rem; }
    .lp-server-grid { grid-template-columns: 1fr; gap: 2rem; }
    .lp-nav { display: none; }
    .lp-hero-cta { flex-direction: column; }
    .lp-section { padding: 4rem 0; }
}