/* --- Timebox OS / Landing Page -------------------------------------------
   独自ブランドとしてのLPスタイル。maemichi.comのheader/footerは流用しない。
   クラスは .lp- 接頭辞でアプリ側（.tb-）と衝突させない。
------------------------------------------------------------------------- */

.skip-link {
    position: absolute;
    top: -100px;
    left: 12px;
    background: var(--accent-color);
    color: #fff;
    padding: 10px 18px;
    border-radius: 100px;
    z-index: 5000;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 12px;
}

/* --- Header --- */
.lp-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 3000;
    padding: 18px 0;
    background: rgba(88, 178, 220, 0.92);
    backdrop-filter: blur(10px);
}

.lp-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.lp-logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-family: var(--font-en);
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.lp-logo-sub {
    font-family: var(--font-jp);
    font-size: 0.62rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
}

.lp-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.lp-nav-links {
    display: flex;
    gap: 24px;
    font-family: var(--font-en);
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 0.02em;
}

.lp-nav-links a:hover {
    opacity: 0.65;
}

@media (max-width: 640px) {
    .lp-nav-links {
        display: none;
    }
}

/* --- Buttons (shared visual language with the app's .tb-btn) --- */
.lp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 100px;
    padding: 13px 28px;
    border: 2px solid var(--accent-color);
    background: var(--accent-color);
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.lp-btn:hover {
    opacity: 0.82;
    transform: translateY(-1px);
}

.lp-btn-sm {
    padding: 9px 20px;
    font-size: 0.78rem;
}

.lp-btn-ghost {
    background: transparent;
    color: var(--accent-color);
}

/* --- Hero --- */
.lp-hero {
    padding: 168px 0 96px;
}

.lp-eyebrow {
    font-family: var(--font-en);
    font-weight: 800;
    letter-spacing: 0.2em;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.lp-badge {
    font-family: var(--font-jp);
    font-size: 0.68rem;
    font-weight: 700;
    background: var(--accent-color);
    color: var(--bg-color);
    padding: 3px 10px;
    border-radius: 100px;
}

.lp-hero-title {
    font-size: clamp(2.2rem, 6vw, 3.8rem);
    line-height: 1.25;
    margin: 20px 0 22px;
    letter-spacing: -0.02em;
    max-width: 18em;
}

.lp-hero-lead {
    font-size: 1.05rem;
    line-height: 1.9;
    max-width: 42em;
    color: var(--text-primary);
}

.lp-hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-top: 32px;
}

.lp-hero-notes {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

.lp-hero-notes li {
    font-size: 0.78rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(13, 13, 13, 0.12);
    border-radius: 100px;
    padding: 6px 14px;
}

/* --- Section shell --- */
.lp-section {
    padding: 88px 0;
}

.lp-section-quiet {
    background: rgba(255, 255, 255, 0.28);
}

.lp-section-head {
    max-width: 42em;
    margin-bottom: 44px;
}

.lp-section-eyebrow {
    font-family: var(--font-en);
    font-weight: 800;
    letter-spacing: 0.14em;
    font-size: 0.72rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: block;
}

.lp-section-title {
    font-size: clamp(1.6rem, 3.6vw, 2.4rem);
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.lp-section-lead {
    margin-top: 14px;
    font-size: 0.95rem;
    line-height: 1.9;
    color: var(--text-primary);
}

/* --- Problem --- */
.lp-problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 720px) {
    .lp-problem-grid {
        grid-template-columns: 1fr;
    }
}

.lp-problem-card {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    box-shadow: 0 12px 30px rgba(13, 13, 13, 0.08);
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.lp-problem-mark {
    flex: 0 0 auto;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(197, 48, 48, 0.1);
    color: #c53030;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.95rem;
}

.lp-problem-text {
    font-size: 0.9rem;
    line-height: 1.8;
}

/* --- Solution / How it works --- */
.lp-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}

@media (max-width: 992px) {
    .lp-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 520px) {
    .lp-steps {
        grid-template-columns: 1fr;
    }
}

.lp-step {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    padding: 22px 20px;
    box-shadow: 0 12px 30px rgba(13, 13, 13, 0.08);
    position: relative;
}

.lp-step-number {
    font-family: var(--font-en);
    font-weight: 800;
    font-size: 1.6rem;
    color: rgba(13, 13, 13, 0.18);
    margin-bottom: 10px;
}

.lp-step-title {
    font-weight: 700;
    font-size: 0.95rem;
    line-height: 1.6;
}

.lp-step-arrow {
    display: none;
}

@media (min-width: 993px) {
    .lp-step:not(:last-child)::after {
        content: "→";
        position: absolute;
        right: -20px;
        top: 50%;
        transform: translateY(-50%);
        font-weight: 800;
        color: rgba(13, 13, 13, 0.3);
    }
}

/* --- Feature grid --- */
.lp-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

@media (max-width: 860px) {
    .lp-feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 520px) {
    .lp-feature-grid {
        grid-template-columns: 1fr;
    }
}

.lp-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: var(--surface-color);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    font-size: 0.85rem;
    line-height: 1.6;
    box-shadow: 0 6px 18px rgba(13, 13, 13, 0.06);
}

.lp-feature-check {
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--tb-life, #2f855a);
    color: #fff;
    font-size: 0.68rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
}

/* --- Future / roadmap list --- */
.lp-future-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

@media (max-width: 860px) {
    .lp-future-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 520px) {
    .lp-future-grid {
        grid-template-columns: 1fr;
    }
}

.lp-future-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    border: 1px dashed rgba(13, 13, 13, 0.25);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.lp-future-tag {
    flex: 0 0 auto;
    font-size: 0.62rem;
    font-weight: 700;
    background: rgba(13, 13, 13, 0.08);
    border-radius: 100px;
    padding: 3px 9px;
    margin-top: 1px;
    white-space: nowrap;
}

.lp-future-note {
    margin-top: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --- Final CTA --- */
.lp-final-cta {
    text-align: center;
    padding: 100px 0 120px;
}

.lp-final-cta-title {
    font-size: clamp(1.8rem, 4.5vw, 2.6rem);
    line-height: 1.4;
    margin-bottom: 28px;
}

/* --- Footer --- */
.lp-footer {
    padding: 40px 0 56px;
    border-top: 1px solid rgba(13, 13, 13, 0.12);
}

.lp-footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.lp-footer-brand {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.lp-footer-logo {
    font-family: var(--font-en);
    font-weight: 800;
    font-size: 1rem;
}

.lp-footer-sub {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.lp-footer-links {
    display: flex;
    gap: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.lp-footer-links a:hover {
    opacity: 0.65;
}

@media (max-width: 768px) {
    .lp-hero {
        padding: 132px 0 64px;
    }
    .lp-section {
        padding: 64px 0;
    }
    .lp-final-cta {
        padding: 72px 0 88px;
    }
}