/* teal บน slate = primary/neutral เดียวกับ web/app/app.config.ts — แก้แบรนด์ที่นั่นแล้วต้องตามมาแก้ที่นี่ด้วย
   (landing ไม่ผ่าน build ของ Nuxt จึงอ่าน theme ของแอปไม่ได้) */
:root {
    --bg: #f8fafc;
    --bg-soft: #f1f5f9;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
    --primary: #0f766e;
    --primary-hover: #115e59;
    --primary-text: #ffffff;
    --primary-soft: #ccfbf1;
    --primary-soft-text: #115e59;
    --accent: #14b8a6;
    --success: #16a34a;
    --success-soft: #dcfce7;
    --paper: #ffffff;
    --paper-text: #0f172a;
    --paper-muted: #64748b;
    --paper-line: #e2e8f0;
    --code-bg: #0f172a;
    --code-text: #e2e8f0;
    --code-muted: #64748b;
    --code-key: #5eead4;
    --code-str: #fcd34d;
    --shadow: 0 24px 48px -24px rgb(15 23 42 / 0.25);
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #020617;
        --bg-soft: #0b1222;
        --card: #0f172a;
        --text: #f1f5f9;
        --muted: #94a3b8;
        --border: #1e293b;
        --primary: #2dd4bf;
        --primary-hover: #5eead4;
        --primary-text: #042f2e;
        --primary-soft: #134e4a;
        --primary-soft-text: #99f6e4;
        --accent: #2dd4bf;
        --success: #4ade80;
        --success-soft: #14532d;
        /* สลิปยังเป็นกระดาษขาวในโหมดมืด — สลิปจริงจากแอปธนาคารก็ขาวเสมอ */
        --paper: #f8fafc;
        --code-bg: #0b1222;
        --shadow: 0 24px 48px -24px rgb(0 0 0 / 0.7);
    }
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
}
body {
    font-family: "IBM Plex Sans Thai", ui-sans-serif, system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
a {
    color: inherit;
    text-decoration: none;
}
svg.i {
    width: 1.25rem;
    height: 1.25rem;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}
.wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1rem;
}
@media (min-width: 640px) {
    .wrap {
        padding: 0 1.5rem;
    }
}
.num {
    font-variant-numeric: tabular-nums;
}

/* ── header ── */
header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    height: 4rem;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
    white-space: nowrap;
}
.logo b {
    color: var(--primary);
}
/* mark เป็น SVG ที่มีมุมโค้ง + gradient ในตัว — จัดแค่ขนาด ห้ามใส่ background/เงาทับ (กติกาใน brand/README.md) */
.logo img {
    width: 2rem;
    height: 2rem;
    display: block;
}
nav {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.nav-link {
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.4rem 0.7rem;
    border-radius: 0.5rem;
}
.nav-link:hover {
    color: var(--text);
    background: var(--bg-soft);
}
@media (max-width: 860px) {
    .nav-link {
        display: none;
    }
}
@media (max-width: 420px) {
    nav .btn-ghost {
        display: none;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.6rem 1.15rem;
    border-radius: 0.65rem;
    font: inherit;
    font-weight: 600;
    font-size: 0.92rem;
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition:
        background 0.15s ease,
        border-color 0.15s ease,
        transform 0.15s ease;
}
.btn:active {
    transform: translateY(1px);
}
.btn:focus-visible,
.nav-link:focus-visible,
summary:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.btn-primary {
    background: var(--primary);
    color: var(--primary-text);
}
.btn-primary:hover {
    background: var(--primary-hover);
}
.btn-outline {
    border-color: var(--border);
    background: var(--card);
}
.btn-outline:hover {
    border-color: var(--primary);
}
.btn-ghost:hover {
    background: var(--bg-soft);
}
.btn-lg {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
}
.btn-block {
    width: 100%;
}

/* ── hero ── */
.hero {
    position: relative;
    overflow: hidden;
    padding: 4.5rem 0 5rem;
}
.hero::before {
    content: "";
    position: absolute;
    inset: -30% -10% auto auto;
    width: 42rem;
    height: 42rem;
    background: radial-gradient(
        closest-side,
        color-mix(in srgb, var(--accent) 22%, transparent),
        transparent
    );
    pointer-events: none;
}
.hero .wrap {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 3rem;
    align-items: center;
}
@media (max-width: 920px) {
    .hero {
        padding: 3rem 0 4rem;
    }
    .hero .wrap {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.3rem 0.8rem 0.3rem 0.45rem;
    border-radius: 99px;
    background: var(--primary-soft);
    color: var(--primary-soft-text);
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 1.4rem;
}
.eyebrow .dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 25%, transparent);
    margin-left: 0.3rem;
}
.hero h1 {
    font-size: clamp(2.1rem, 5.2vw, 3.4rem);
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.2rem;
}
.hero h1 em {
    font-style: normal;
    color: var(--primary);
}
.lead {
    color: var(--muted);
    font-size: 1.1rem;
    max-width: 34rem;
    margin-bottom: 2rem;
}
.hero-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}
.hero-points {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.4rem;
    color: var(--muted);
    font-size: 0.9rem;
}
.hero-points li {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.hero-points svg {
    color: var(--success);
    width: 1.05rem;
    height: 1.05rem;
}

/* ── demo: สลิป + ผลตรวจ ── */
.demo {
    position: relative;
    min-height: 27rem;
    max-width: 30rem;
    width: 100%;
    margin: 0 auto;
}
/* เงาอยู่ที่ตัวห่อ ไม่ใช่ที่ .slip — mask ของขอบหยักตัดเงาของ element ตัวเองทิ้งไปด้วย */
.slip-wrap {
    position: absolute;
    top: 0;
    left: 0;
    width: 68%;
    transform: rotate(-4deg);
    filter: drop-shadow(0 18px 24px rgb(15 23 42 / 0.22));
}
.slip {
    position: relative;
    background: var(--paper);
    color: var(--paper-text);
    border-radius: 1rem 1rem 0 0;
    padding: 1.25rem 1.25rem 1.6rem;
    overflow: hidden;
    /* ขอบล่างหยักแบบกระดาษฉีก — ล้อกับรูปทรงสลิปในโลโก้ */
    -webkit-mask:
        conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg)
        50% / 1rem 100%;
    mask:
        conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg)
        50% / 1rem 100%;
}
.slip-head {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 0.9rem;
}
.slip-bank {
    width: 1.9rem;
    height: 1.9rem;
    border-radius: 50%;
    background: linear-gradient(135deg, #2dd4bf, #0f766e);
    flex-shrink: 0;
}
.slip-head strong {
    display: block;
    font-size: 0.88rem;
    line-height: 1.3;
}
.slip-head span {
    display: block;
    font-size: 0.7rem;
    color: var(--paper-muted);
}
.slip-amount {
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.8rem;
}
.slip-amount small {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--paper-muted);
}
.slip dl {
    font-size: 0.74rem;
    border-top: 1px dashed var(--paper-line);
    padding-top: 0.7rem;
    display: grid;
    gap: 0.45rem;
}
.slip dt {
    color: var(--paper-muted);
}
.slip dd {
    font-weight: 600;
    line-height: 1.35;
}
.slip dd span {
    display: block;
    font-weight: 400;
    color: var(--paper-muted);
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    font-size: 0.68rem;
}
.slip-foot {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 0.6rem;
    margin-top: 0.8rem;
}
.slip-ref {
    font-size: 0.65rem;
    color: var(--paper-muted);
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    word-break: break-all;
}
.slip-qr {
    width: 3.6rem;
    height: 3.6rem;
    flex-shrink: 0;
    color: var(--paper-text);
}
.scanline {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 3.5rem;
    background: linear-gradient(
        to bottom,
        transparent,
        color-mix(in srgb, #14b8a6 28%, transparent) 85%,
        #14b8a6
    );
    animation: scan 2.8s cubic-bezier(0.45, 0, 0.55, 1) infinite;
    pointer-events: none;
}
@keyframes scan {
    0% {
        transform: translateY(-3.5rem);
    }
    55%,
    100% {
        transform: translateY(26rem);
    }
}

.result {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 64%;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 1rem;
    box-shadow: var(--shadow);
    overflow: hidden;
    animation: rise 0.7s 0.25s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}
@keyframes rise {
    from {
        opacity: 0;
        transform: translateY(1rem);
    }
}
.result-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.85rem 1rem;
    background: var(--success-soft);
    color: var(--success);
    font-weight: 700;
    font-size: 0.92rem;
}
.result-head > span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.pill {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.15rem 0.55rem;
    border-radius: 99px;
    background: var(--card);
    color: var(--muted);
    white-space: nowrap;
}
.result dl {
    padding: 0.4rem 1rem;
    font-size: 0.82rem;
}
.result .row {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--border);
}
.result .row:last-child {
    border-bottom: 0;
}
.result dt {
    color: var(--muted);
}
.result dd {
    font-weight: 600;
    text-align: right;
}
.result-foot {
    display: flex;
    justify-content: space-between;
    padding: 0.7rem 1rem;
    background: var(--bg-soft);
    font-size: 0.8rem;
    color: var(--muted);
}
.result-foot b {
    color: var(--text);
}
@media (max-width: 480px) {
    .demo {
        min-height: 25rem;
    }
    .slip-wrap {
        width: 78%;
    }
    .result {
        width: 76%;
    }
}
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .scanline {
        display: none;
    }
    .result {
        animation: none;
    }
}

/* ── sections ── */
section.block {
    padding: 5rem 0;
}
section.alt {
    background: var(--bg-soft);
    border-block: 1px solid var(--border);
}
.section-head {
    max-width: 40rem;
    margin: 0 auto 3rem;
    text-align: center;
}
.kicker {
    display: block;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
}
.section-head h2,
.dev-copy h2 {
    font-size: clamp(1.6rem, 3.4vw, 2.15rem);
    font-weight: 700;
    letter-spacing: -0.015em;
    line-height: 1.3;
    margin-bottom: 0.75rem;
}
.section-head p {
    color: var(--muted);
}

/* steps */
.steps {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    counter-reset: step;
}
@media (max-width: 820px) {
    .steps {
        grid-template-columns: 1fr;
        max-width: 30rem;
        margin: 0 auto;
    }
}
.step {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.6rem 1.5rem 1.5rem;
    counter-increment: step;
}
.step::after {
    content: "0" counter(step);
    position: absolute;
    top: 1.1rem;
    right: 1.3rem;
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    font-size: 0.85rem;
    color: var(--muted);
}
.icon-tile {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.75rem;
    background: var(--primary-soft);
    color: var(--primary-soft-text);
    display: grid;
    place-items: center;
    margin-bottom: 1rem;
}
.step h3,
.feature h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}
.step p,
.feature p {
    color: var(--muted);
    font-size: 0.92rem;
}

/* features */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 1.1rem;
    overflow: hidden;
}
@media (max-width: 900px) {
    .features {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 580px) {
    .features {
        grid-template-columns: 1fr;
    }
}
.feature {
    background: var(--card);
    padding: 1.75rem 1.6rem;
}
.feature .icon-tile {
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 0.65rem;
}

/* developer */
.dev {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 3rem;
    align-items: center;
}
@media (max-width: 900px) {
    .dev {
        grid-template-columns: 1fr;
    }
}
.dev-copy p {
    color: var(--muted);
    margin-bottom: 1.5rem;
}
.dev-copy code {
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    font-size: 0.88em;
    padding: 0.1rem 0.35rem;
    border-radius: 0.35rem;
    background: var(--primary-soft);
    color: var(--primary-soft-text);
}
.checklist {
    list-style: none;
    display: grid;
    gap: 0.85rem;
    margin-bottom: 2rem;
}
.checklist li {
    display: flex;
    gap: 0.7rem;
    font-size: 0.95rem;
}
.checklist svg {
    color: var(--primary);
    margin-top: 0.2rem;
}
.checklist b {
    display: block;
    font-weight: 600;
}
.checklist span {
    color: var(--muted);
    font-size: 0.88rem;
}
.code {
    background: var(--code-bg);
    color: var(--code-text);
    border-radius: 1rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
    min-width: 0;
}
.code-bar {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgb(255 255 255 / 0.08);
    font-size: 0.75rem;
    color: var(--code-muted);
}
.code-bar i {
    width: 0.65rem;
    height: 0.65rem;
    border-radius: 50%;
    background: rgb(255 255 255 / 0.14);
}
.code-bar span {
    margin-left: 0.5rem;
}
.code pre {
    margin: 0;
    padding: 1.1rem 1.2rem 1.3rem;
    overflow-x: auto;
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    font-size: 0.8rem;
    line-height: 1.75;
}
.code .c {
    color: var(--code-muted);
}
.code .k {
    color: var(--code-key);
}
.code .s {
    color: var(--code-str);
}

/* pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
    gap: 1.25rem;
    max-width: 64rem;
    margin: 0 auto;
}
.price-card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 1.1rem;
    padding: 1.9rem 1.6rem 1.6rem;
    display: flex;
    flex-direction: column;
}
.price-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary), var(--shadow);
}
.price-badge {
    position: absolute;
    top: -0.75rem;
    left: 1.6rem;
    background: var(--primary);
    color: var(--primary-text);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.2rem 0.7rem;
    border-radius: 99px;
}
.price-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
}
.price {
    font-size: 2.3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 1.3rem;
}
.price small {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--muted);
    letter-spacing: 0;
}
.price-card ul {
    list-style: none;
    display: grid;
    gap: 0.55rem;
    margin-bottom: 1.6rem;
    padding-top: 1.1rem;
    border-top: 1px solid var(--border);
    flex: 1;
    font-size: 0.92rem;
}
.price-card li {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}
.price-card li svg {
    color: var(--success);
    width: 1.05rem;
    height: 1.05rem;
}
.pricing-note {
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
    margin-top: 1.75rem;
}
.pricing-error {
    grid-column: 1 / -1;
    text-align: center;
    background: var(--card);
    border: 1px dashed var(--border);
    border-radius: 1.1rem;
    padding: 2.5rem 1.5rem;
    color: var(--muted);
}
.pricing-error p {
    margin-bottom: 1rem;
}
.skeleton {
    background: linear-gradient(90deg, var(--bg-soft) 25%, var(--border) 50%, var(--bg-soft) 75%);
    background-size: 300% 100%;
    animation: shimmer 1.4s ease infinite;
    border-radius: 0.5rem;
}
@keyframes shimmer {
    from {
        background-position: 100% 0;
    }
    to {
        background-position: 0 0;
    }
}

/* faq */
.faq {
    max-width: 46rem;
    margin: 0 auto;
    display: grid;
    gap: 0.75rem;
}
.faq details {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 0.9rem;
    padding: 0 1.25rem;
}
.faq details[open] {
    border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
}
.faq summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.05rem 0;
    font-weight: 600;
    border-radius: 0.4rem;
}
.faq summary::-webkit-details-marker {
    display: none;
}
.faq summary svg {
    color: var(--muted);
    transition: transform 0.2s ease;
}
.faq details[open] summary svg {
    transform: rotate(45deg);
}
.faq details p {
    color: var(--muted);
    padding-bottom: 1.15rem;
    font-size: 0.95rem;
}

/* cta */
.cta {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0f766e, #134e4a);
    color: #f0fdfa;
    border-radius: 1.5rem;
    padding: 3.5rem 2rem;
    text-align: center;
}
.cta::after {
    content: "";
    position: absolute;
    inset: auto -6rem -9rem auto;
    width: 22rem;
    height: 22rem;
    border-radius: 50%;
    background: radial-gradient(closest-side, rgb(45 212 191 / 0.35), transparent);
}
.cta h2 {
    position: relative;
    font-size: clamp(1.6rem, 3.6vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.015em;
    margin-bottom: 0.6rem;
}
.cta p {
    position: relative;
    color: #99f6e4;
    margin-bottom: 1.8rem;
}
.cta .btn {
    position: relative;
}
/* ปุ่มบนพื้นเขียวเข้มคงที่ทั้งสองโหมด — ใช้ token ของโหมดสว่างไม่ได้เพราะพื้นไม่เปลี่ยนตาม */
.cta .btn-on-dark {
    background: #f0fdfa;
    color: #134e4a;
}
.cta .btn-on-dark:hover {
    background: #ffffff;
}
.cta .btn-on-dark-outline {
    border-color: rgb(240 253 250 / 0.35);
    color: #f0fdfa;
}
.cta .btn-on-dark-outline:hover {
    border-color: #f0fdfa;
}
.cta .btn:focus-visible {
    outline-color: #f0fdfa;
}
.cta-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0 2.5rem;
    margin-top: 5rem;
}
footer .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--muted);
    font-size: 0.88rem;
}
footer .logo {
    color: var(--text);
    font-size: 1rem;
}
footer .logo img {
    width: 1.6rem;
    height: 1.6rem;
}
.foot-links {
    display: flex;
    gap: 1.25rem;
}
.foot-links a:hover {
    color: var(--text);
}