:root {
    --bg: #fffaf6;
    --surface: #fff;
    --text: #3f3a36;
    --muted: #7b726d;
    --main: #ee7f8f;
    --sub: #f3c35f;
    --line: #e8ddd6;
    --shadow: 0 12px 28px rgba(125, 89, 72, 0.12);
}

html {
    scroll-behavior: smooth;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Noto Sans JP", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    animation: pageEnter 0.55s ease-out;
}

@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

html.page-transition-out body {
    opacity: 0;
    transition: opacity 0.38s ease, transform 0.38s ease;
    transform: translateY(-6px);
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(1080px, 92%);
    margin-inline: auto;
}

.header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 250, 246, 0.9);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(6px);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 72px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.logo__mark {
    width: 42px;
    height: 42px;
}

.logo__mark img {
    width: 100%;
    height: 100%;
    transform-origin: 50% 50%;
    animation: logoSway 8s ease-in-out infinite;
}

.logo__text strong {
    display: block;
    font-family: "Marcellus", serif;
    letter-spacing: 0.04em;
    font-size: 1.2rem;
    line-height: 1.1;
}

.logo__text small {
    color: var(--muted);
    font-size: 0.75rem;
}

.nav {
    display: flex;
    gap: 18px;
    font-family: "Marcellus", serif;
}

.nav a {
    color: var(--muted);
}

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

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: #fff;
    place-items: center;
    gap: 4px;
}

.menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
}

.hero {
    padding: 72px 0 46px;
}

.hero__inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 24px;
    align-items: center;
}

.eyebrow {
    color: #c96f80;
    letter-spacing: 0.08em;
    font-size: 0.88rem;
}

h1,
h2 {
    font-family: "Marcellus", serif;
    line-height: 1.25;
}

h1 {
    margin: 10px 0 18px;
    font-size: clamp(2rem, 4vw, 3.2rem);
}

h2 {
    margin: 0 0 18px;
    font-size: clamp(1.4rem, 2.2vw, 2rem);
}

.btn {
    display: inline-block;
    margin-top: 10px;
    padding: 10px 22px;
    border-radius: 999px;
    color: #fff;
    background: linear-gradient(135deg, #ee7f8f, #e7a85a);
    box-shadow: 0 8px 18px rgba(231, 137, 124, 0.25);
    animation: btnPulse 2.8s ease-in-out infinite;
}

.btn:hover {
    animation-duration: 1.8s;
}

.hero__art {
    aspect-ratio: 1 / 1;
    border-radius: 28px;
    background: #fff;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.hero__art img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: translate3d(var(--tx, 0), var(--ty, 0), 0) scale(1.02);
    transition: transform 0.28s ease-out;
}

.section {
    padding: 62px 0;
}

.lead {
    margin-top: 0;
    color: var(--muted);
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.card {
    position: relative;
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 20px;
    box-shadow: var(--shadow);
    transform: translateY(0);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(180px circle at var(--mx, 50%) var(--my, 50%),
            rgba(255, 180, 195, 0.2),
            transparent 60%);
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 34px rgba(125, 89, 72, 0.16);
}

.card:hover::after {
    opacity: 1;
}

.card h3 {
    margin-top: 0;
    color: #bd6173;
}

.section--accent {
    background: linear-gradient(180deg, #fff3f6, #fffdf7);
}

.item-grid {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    padding: 0;
    margin: 24px 0 0;
}

.item-grid li {
    position: relative;
    overflow: hidden;
    background: #fff;
    border: 1px dashed #e8c7cc;
    border-radius: 14px;
    padding: 16px;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.item-grid li::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(160px circle at var(--mx, 50%) var(--my, 50%),
            rgba(243, 195, 95, 0.2),
            transparent 62%);
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
}

.item-grid li:hover {
    transform: translateY(-3px);
    border-color: #e9b7c0;
}

.item-grid li:hover::after {
    opacity: 1;
}

.item-grid span {
    display: block;
    font-size: 0.8rem;
    color: #b1988a;
}

.gift {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 20px;
    align-items: center;
}

.gift__illustration {
    height: 240px;
}

.gift__illustration img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.season-message {
    font-weight: 500;
    color: #bc6375;
}

.section--last {
    padding-top: 36px;
}

.info {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 20px;
}

.contact-form {
    margin-top: 20px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.form-row {
    display: grid;
    gap: 8px;
    margin-bottom: 16px;
}

.form-row label {
    font-weight: 500;
    color: #6b625e;
}

.form-row input,
.form-row textarea {
    width: 100%;
    border: 1px solid #e7d9d2;
    border-radius: 12px;
    padding: 10px 12px;
    font: inherit;
    color: var(--text);
    background: #fffdfb;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-row input:focus,
.form-row textarea:focus {
    outline: none;
    border-color: #df8f9f;
    box-shadow: 0 0 0 3px rgba(238, 127, 143, 0.18);
}

.form-submit {
    border: none;
    cursor: pointer;
}

.form-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-status {
    min-height: 1.5em;
    margin: 12px 0 0;
    font-weight: 500;
    color: #bc6375;
}

.form-status.is-error {
    color: #c45454;
}

.form-status.is-success {
    color: #5b8e58;
}

.footer {
    text-align: center;
    color: var(--muted);
    padding: 26px 0 34px;
}

@keyframes btnPulse {

    0%,
    100% {
        transform: translateY(0) scale(1);
        box-shadow: 0 8px 18px rgba(231, 137, 124, 0.25);
    }

    50% {
        transform: translateY(-1px) scale(1.03);
        box-shadow: 0 12px 24px rgba(231, 137, 124, 0.35);
    }
}

@keyframes logoSway {

    0%,
    100% {
        transform: rotate(0deg);
    }

    25% {
        transform: rotate(-2deg);
    }

    75% {
        transform: rotate(2deg);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    body {
        animation: none;
    }

    html.page-transition-out body {
        transition: none;
        transform: none;
    }

    .reveal,
    .reveal.is-visible,
    .hero__art img,
    .card,
    .item-grid li {
        transition: none;
        transform: none;
    }

    .btn,
    .logo__mark img {
        animation: none;
    }
}

@media (max-width: 860px) {

    .hero__inner,
    .cards,
    .gift {
        grid-template-columns: 1fr;
    }

    .hero__art {
        max-width: 420px;
        margin-inline: auto;
        width: 100%;
    }
}

@media (max-width: 640px) {
    .menu-toggle {
        display: grid;
    }

    .nav {
        position: fixed;
        inset: 72px 0 auto;
        padding: 12px 18px 16px;
        background: #fffaf6;
        border-bottom: 1px solid var(--line);
        transform: translateY(-140%);
        transition: transform 0.3s;
        display: grid;
        gap: 12px;
    }

    .nav.is-open {
        transform: translateY(0);
    }

    .item-grid {
        grid-template-columns: 1fr;
    }

    h1 {
        line-height: 1.35;
    }
}