/* ========================================
   汎用スターターLP デモ
   ======================================== */

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

:root {
    --primary-color: #0f172a;
    --accent-color: #f59e0b;
    --text-color: #1e293b;
    --text-light: #64748b;
    --white: #ffffff;
    --bg-light: #f8fafc;
    --transition-base: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-color);
    line-height: 1.8;
    background: var(--white);
}

.container {
    width: min(1100px, 92%);
    margin: 0 auto;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    border: none;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--white);
}

.btn-primary:hover {
    background: #ff7a00;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

.btn-outline:hover {
    background: var(--accent-color);
    color: var(--white);
}

/* --- Header --- */
header {
    background: #fff;
    padding: 20px 0;
    box-shadow: 0 1px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--primary-color);
}

.logo span {
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.9rem;
}

/* --- Demo Header --- */
.demo-head {
    padding: 40px 0 22px;
    background: #0b1220;
    color: #fff;
}

.demo-head__inner {
    width: min(1100px, 92%);
    margin: 0 auto;
}

.demo-badge {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(245, 158, 11, 0.18);
    border: 1px solid rgba(245, 158, 11, 0.35);
    color: #f59e0b;
    font-weight: 800;
    margin-bottom: 10px;
}

.demo-title {
    font-size: 1.9rem;
    font-weight: 900;
    margin-bottom: 10px;
    line-height: 1.25;
}

.demo-desc {
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
}

.demo-actions {
    display: flex;
    gap: 12px;
    margin: 16px 0 8px;
    flex-wrap: wrap;
}

.demo-note {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.9rem;
}

.btn-demo-primary {
    background: #fff;
    color: #0b1220;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 800;
}

.btn-demo-accent {
    background: #f59e0b;
    color: #0b1220;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 800;
}

/* --- LP Specific Styles --- */
.lp-hero {
    padding: 110px 0 60px;
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
}

.lp-inner {
    width: min(980px, 92%);
    margin: 0 auto;
}

.lp-badge {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(245, 158, 11, 0.14);
    border: 1px solid rgba(245, 158, 11, 0.35);
    color: #b45309;
    font-weight: 800;
    margin-bottom: 10px;
}

.lp-title {
    font-size: 2.2rem;
    line-height: 1.25;
    margin-bottom: 12px;
}

.lp-lead {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 18px;
}

.lp-note {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #64748b;
}

.lp-section {
    padding: 56px 0;
}

.lp-alt {
    background: #f8fafc;
}

.lp-h2 {
    font-size: 1.6rem;
    margin-bottom: 16px;
}

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

.lp-list li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 10px;
    color: #475569;
    line-height: 1.75;
}

.lp-list li::before {
    content: "・";
    position: absolute;
    left: 0;
    top: 0;
    color: #f59e0b;
    font-weight: 800;
}

.lp-list-small li {
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.lp-cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.lp-cta-center {
    justify-content: center;
}

.lp-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 10px;
}

@media (min-width: 900px) {
    .lp-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

.lp-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 18px;
}

.lp-card h3 {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.lp-pricebox {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 20px;
}

.lp-price {
    padding: 14px 0;
    border-bottom: 1px dashed #e2e8f0;
}

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

.lp-price-main {
    font-size: 1.7rem;
    font-weight: 900;
}

.lp-price-sub {
    color: #64748b;
    margin-top: 4px;
}

.lp-steps {
    padding-left: 18px;
    color: #475569;
    line-height: 1.85;
}

.lp-faq {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 14px 16px;
    margin-bottom: 12px;
}

.lp-faq summary {
    font-weight: 800;
    cursor: pointer;
}

/* --- Footer --- */
footer {
    background: #1a1a1a;
    color: #fff;
    text-align: center;
    padding: 40px 0;
}

.footer-logo {
    font-weight: 900;
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.footer-copy {
    font-size: 0.8rem;
    opacity: 0.6;
    margin-bottom: 4px;
}

.footer-demo {
    font-size: 0.75rem;
    opacity: 0.4;
}

/* --- Mobile Nav --- */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}