/* ─── Base ──────────────────────────────── */
html,
body {
    margin: 0;
    padding: 0;
    background-color: #111;
}

.lp * {
    box-sizing: border-box;
}

.lp {
    font-family: 'Hiragino Mincho ProN', 'Yu Mincho', 'Noto Serif JP', Georgia, serif;
    color: #f5f0e8;
    background: #111;
    line-break: strict;
    word-break: normal;
    overflow-wrap: break-word;
    text-wrap: pretty;
}

/* ─── Hero ──────────────────────────────── */
.lp-hero {
    background: #111;
    min-height: 88vh;
    display: flex;
    align-items: center;
    padding: 2.5rem 3rem 2rem;
    position: relative;
    overflow: hidden;
}

.lp-hero-deco {
    position: absolute;
    left: 5%;
    top: 50%;
    transform: translateY(-50%);
    writing-mode: vertical-rl;
    font-size: clamp(5rem, 13vw, 11rem);
    color: rgba(255, 255, 255, 0.03);
    letter-spacing: 0.08em;
    line-height: 1;
    user-select: none;
    pointer-events: none;
    white-space: nowrap;
}

.lp-hero-inner {
    max-width: 1080px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
}

/* hero: vertical text block (title right, desc left) */
.lp-hero-vblock {
    display: flex;
    flex-direction: row-reverse;
    align-items: flex-end;
    gap: 2.5rem;
    margin-bottom: 2rem;
}

.lp-hero-title {
    writing-mode: vertical-rl;
    font-size: clamp(2.4rem, 5.5vw, 4.2rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: 0.06em;
    color: #f5f0e8;
    margin: 0;
    flex-shrink: 0;
    height: 50vh;
    overflow: hidden;
}

.lp-hero-subdesc {
    display: flex;
    flex-direction: row-reverse;
    align-items: flex-end;
    gap: 1.8rem;
}

.lp-eyebrow {
    writing-mode: vertical-rl;
    font-size: 0.68rem;
    letter-spacing: 0.45em;
    color: #b8965a;
    font-family: 'Helvetica Neue', sans-serif;
    margin: 0;
    flex-shrink: 0;
}

.lp-hero-desc {
    writing-mode: vertical-rl;
    font-size: clamp(0.9rem, 1.8vw, 1.05rem);
    color: rgba(245, 240, 232, 0.68);
    line-height: 2;
    margin: 0;
    height: 50vh;
    /* column length: text wraps into multiple columns */
}

/* buttons: always horizontal */
.lp-btn-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    writing-mode: horizontal-tb;
}

.lp-btn {
    display: inline-block;
    padding: 0.85rem 2.4rem;
    background: #b8965a;
    color: #111;
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.12em;
    font-family: inherit;
    transition: background 0.2s, transform 0.15s;
    writing-mode: horizontal-tb;
}

.lp-btn:hover {
    background: #cba96e;
    color: #111;
    transform: translateY(-2px);
}

.lp-btn-ghost {
    display: inline-block;
    padding: 0.85rem 2rem;
    border: 1px solid rgba(245, 240, 232, 0.3);
    color: rgba(245, 240, 232, 0.78);
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.12em;
    font-family: inherit;
    transition: border-color 0.2s, color 0.2s;
    writing-mode: horizontal-tb;
}

.lp-btn-ghost:hover {
    border-color: rgba(245, 240, 232, 0.7);
    color: #f5f0e8;
}

/* ─── App Demo ──────────────────────────── */
.lp-demo-wrap {
    background: #1a1a1c;
    padding: 4rem 2rem;
}

.lp-demo {
    max-width: 860px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 7px;
    overflow: hidden;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.55);
}

.lp-demo-gif {
    display: block;
    width: 100%;
    height: auto;
}

/* ─── Section common ────────────────────── */
.lp-section {
    padding: 5.5rem 3rem;
}

.lp-section-dark {
    background: #111;
}

.lp-section-mid {
    background: #1a1a1c;
}

.lp-inner {
    max-width: 1000px;
    margin: 0 auto;
}

/* section header: label + h2 both vertical, right-to-left */
.lp-sechead {
    display: flex;
    flex-direction: row-reverse;
    align-items: flex-end;
    gap: 1rem;
    margin-bottom: 3rem;
}

.lp-label {
    writing-mode: vertical-rl;
    font-size: 0.67rem;
    letter-spacing: 0.45em;
    color: #b8965a;
    font-family: 'Helvetica Neue', sans-serif;
    margin: 0;
}

.lp-h2 {
    writing-mode: vertical-rl;
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    font-weight: 400;
    color: #f5f0e8;
    margin: 0;
}

/* ─── Features ──────────────────────────── */
.lp-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.4rem;
    direction: rtl;
}

.lp-card {
    padding: 1.5rem 1.7rem;
    border: 1px solid rgba(255, 255, 255, 0.07);
    position: relative;
    overflow: hidden;
    direction: ltr;
}

.lp-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(to left, #b8965a, transparent);
}

/* vertical writing card content */
.lp-card-v {
    writing-mode: vertical-rl;
    height: 260px;
    width: 100%;
    overflow: hidden;
}

.lp-card-num {
    font-size: 0.75rem;
    color: #b8965a;
    font-family: 'Helvetica Neue', sans-serif;
    margin: 0 0 0.5em;
    text-combine-upright: all;
}

.lp-card-title {
    font-size: 1rem;
    font-weight: 400;
    color: #f5f0e8;
    margin: 0 0 0.6em;
    white-space: nowrap;
}

.lp-card-desc {
    font-size: 0.83rem;
    color: rgba(245, 240, 232, 0.58);
    line-height: 1.85;
    margin: 0;
}

/* ─── How it works ──────────────────────── */
.lp-steps {
    display: flex;
    flex-direction: row-reverse;
    gap: 2.5rem;
}

.lp-step {
    flex: 1;
    display: flex;
    flex-direction: row-reverse;
    align-items: flex-start;
    gap: 2rem;
}

.lp-step-n {
    writing-mode: vertical-rl;
    text-orientation: upright;
    font-size: 3rem;
    color: rgba(184, 150, 90, 0.2);
    line-height: 1;
    flex-shrink: 0;
    font-family: 'Helvetica Neue', sans-serif;
    font-weight: 300;
}

/* vertical writing step content */
.lp-step-v {
    writing-mode: vertical-rl;
    height: 220px;
    overflow: hidden;
    flex: 1;
}

.lp-step-title {
    font-size: 1.05rem;
    font-weight: 400;
    color: #f5f0e8;
    margin: 0 0 0.5em;
    white-space: nowrap;
}

.lp-step-desc {
    font-size: 0.87rem;
    color: rgba(245, 240, 232, 0.58);
    line-height: 1.85;
    margin: 0;
}

/* ─── CTA ───────────────────────────────── */
.lp-cta {
    background: #111;
    padding: 7rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.lp-cta-deco {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    writing-mode: vertical-rl;
    font-size: clamp(8rem, 22vw, 18rem);
    color: rgba(255, 255, 255, 0.025);
    letter-spacing: 0.08em;
    user-select: none;
    pointer-events: none;
}

.lp-divider {
    width: 1px;
    height: 52px;
    background: linear-gradient(to bottom, transparent, #b8965a, transparent);
    margin: 0 auto 3rem;
}

/* vertical CTA title centered via flex wrapper */
.lp-cta-title-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
    position: relative;
}

.lp-cta-title {
    writing-mode: vertical-rl;
    font-size: clamp(1.8rem, 4.5vw, 3rem);
    font-weight: 400;
    color: #f5f0e8;
    margin: 0;
    white-space: nowrap;
}

.lp-cta-sub {
    font-size: 0.87rem;
    color: rgba(245, 240, 232, 0.45);
    margin: 2.5rem;
    font-family: 'Helvetica Neue', sans-serif;
    letter-spacing: 0.06em;
    position: relative;
}

.lp-cta .lp-btn {
    position: relative;
    font-size: 1.05rem;
    padding: 1rem 3.2rem;
}

/* ─── FAQ ───────────────────────────────── */
.lp-faq-list {
    display: flex;
    flex-direction: row-reverse;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.lp-faq-item {
    flex: 0 0 auto;
    min-width: 11rem;
    padding: 1.4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.lp-faq-v {
    writing-mode: vertical-rl;
    height: 17rem;
    width: 100%;
}

.lp-faq-marker {
    font-size: 0.72rem;
    font-family: 'Helvetica Neue', sans-serif;
    color: #b8965a;
    margin: 0 0 0.4em;
    text-combine-upright: all;
}

.lp-faq-marker-a {
    color: rgba(245, 240, 232, 0.3);
    margin: 0 0.4rem 0 0;
}

.lp-faq-q {
    font-size: 0.93rem;
    font-weight: 400;
    color: #f5f0e8;
    line-height: 1.75;
    margin: 0 0 0;
}

.lp-faq-a {
    font-size: 0.82rem;
    color: rgba(245, 240, 232, 0.55);
    line-height: 1.85;
    margin: 0;
}

/* ─── Footer ────────────────────────────── */
.lp-foot {
    background: #0c0c0c;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 1.8rem 2rem;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(245, 240, 232, 0.28);
    font-family: 'Helvetica Neue', sans-serif;
}

.lp-foot a {
    color: rgba(245, 240, 232, 0.35);
    text-decoration: none;
}

.lp-foot a:hover {
    text-decoration: underline;
    color: rgba(245, 240, 232, 0.7);
}

.lp-foot-meta {
    margin-top: 1rem;
}

.lp-foot-sep {
    margin: 0 0.6rem;
    color: rgba(245, 240, 232, 0.15);
}

/* ─── Tablet ────────────────────────────────── */
@media (max-width: 960px) and (min-width: 641px) {
    .lp-hero {
        padding: 3rem 2rem 2.5rem;
    }

    .lp-hero-title {
        font-size: clamp(2rem, 4vw, 3rem);
        height: 44vh;
    }

    .lp-hero-desc {
        height: 44vh;
    }

    .lp-hero-vblock {
        gap: 1.8rem;
    }

    /* Features: 2 columns */
    .lp-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .lp-card-v {
        height: 280px;
    }

    /* Steps: 2 columns */
    .lp-steps {
        flex-wrap: wrap;
    }

    .lp-step {
        flex: 0 0 calc(50% - 1.25rem);
    }

    .lp-step-v {
        height: 200px;
    }

    /* FAQ */
    .lp-faq-item {
        padding: 1.4rem 1.2rem;
    }

    .lp-faq-v {
        height: 16rem;
    }

    .lp-section {
        padding: 4.5rem 2rem;
    }
}

/* ─── Mobile ────────────────────────────────── */
@media (max-width: 640px) {

    /* Hero: smaller font to keep columns within viewport width */
    .lp-hero {
        min-height: 80vh;
        padding: 4.5rem 1.5rem 3.5rem;
    }

    .lp-hero-deco {
        display: none;
    }

    .lp-hero-title {
        font-size: 1.7rem;
    }

    .lp-hero-vblock {
        gap: 1.5rem;
        margin-bottom: 2rem;
    }

    .lp-hero-subdesc {
        gap: 1rem;
    }

    .lp-hero-desc {
        font-size: 0.85rem;
        height: 55vh;
    }

    /* Sections */
    .lp-section {
        padding: 4rem 1.5rem;
    }

    /* Features: single column */
    .lp-grid {
        grid-template-columns: 1fr;
    }

    /* Steps: single column */
    .lp-steps {
        flex-direction: column;
        gap: 2rem;
    }

    /* CTA */
    .lp-cta {
        padding: 5rem 1.5rem;
    }

    /* FAQ */
    .lp-faq-item {
        padding: 1.2rem 1rem;
    }

    .lp-faq-v {
        height: 15rem;
    }

    /* Demo */
    .lp-demo-wrap {
        padding: 2.5rem 1rem;
    }

    .lp-demo {
        max-width: 100%;
    }
}