html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
        "Segoe UI Emoji";
    color: #1e1b18;
    background: #f7f3ef;
}

.landing-page {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px;
    box-sizing: border-box;
}

.landing-card {
    position: relative;
    z-index: 1;
    width: min(980px, 100%);
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    border-radius: 26px;
    overflow: hidden;
    background: rgba(247, 243, 239, 0.88);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 26px 60px rgba(20, 12, 8, 0.22);
    backdrop-filter: blur(10px);
}

.guide-overlay {
    position: absolute;
    right: 14px;
    bottom: 14px;
    width: min(220px, 42vw);
    padding: 10px 10px 12px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(0, 0, 0, 0.10);
    box-shadow: 0 16px 30px rgba(20, 12, 8, 0.18);
    backdrop-filter: blur(10px);
}

.guide-overlay__img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

.guide-overlay__text {
    margin-top: 8px;
    font-size: 13px;
    line-height: 1.25;
    color: #1e1b18;
    text-align: center;
    font-weight: 700;
    letter-spacing: 0.02em;
    font-variant-caps: all-small-caps;
}

.guide-card {
    display: none;
    margin-top: 12px;
    padding: 10px 10px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(0, 0, 0, 0.10);
    box-shadow: 0 12px 22px rgba(20, 12, 8, 0.14);
    gap: 10px;
    align-items: center;
}

.guide-card__img {
    width: 64px;
    height: auto;
    display: block;
    border-radius: 10px;
    flex: 0 0 auto;
}

.guide-card__text {
    font-size: 13px;
    line-height: 1.25;
    color: #1e1b18;
    font-weight: 700;
    letter-spacing: 0.02em;
    font-variant-caps: all-small-caps;
}

.landing-card__content {
    padding: 44px 44px 40px;
    box-sizing: border-box;
    min-width: 0;
}

.landing-card__media {
    background-image: url("/img/image.png");
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-color: rgba(255, 255, 255, 0.7);
    min-height: 520px;
}

.landing__brand {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
}

.landing__logo {
    max-width: 170px;
    height: auto;
}

.landing__title {
    font-family: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
    font-size: clamp(30px, 2.2vw, 46px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin: 0 0 18px;
    white-space: nowrap;
    padding-right: 14px;
}

.countdown {
    --flip-w: 40px;
    --flip-h: 52px;
    --flip-font: 26px;
    --flip-radius: 10px;
    --digit-gap: 5px;
    --group-gap: 8px;
    --sep-size: 18px;
    --sep-pad: 8px;

    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: var(--group-gap);
    margin: 6px 0 18px;
    user-select: none;
    overflow: hidden;
}

.countdown::-webkit-scrollbar {
    display: none;
}

.countdown__group {
    display: grid;
    gap: 6px;
}

.countdown__label {
    font-size: 11px;
    letter-spacing: 0.04em;
    font-variant-caps: all-small-caps;
    color: #3a332d;
    text-align: center;
}

.countdown__label-short {
    display: none;
}

.countdown__digits {
    display: flex;
    gap: var(--digit-gap);
}

.countdown__sep {
    font-family: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
    font-size: var(--sep-size);
    line-height: 1;
    color: rgba(30, 27, 24, 0.6);
    padding-bottom: var(--sep-pad);
}

.flip-card {
    position: relative;
    --card-h: var(--flip-h);
    width: var(--flip-w);
    height: var(--card-h);
    border-radius: var(--flip-radius);
    perspective: 900px;
}

.flip-card::after {
    content: "";
    position: absolute;
    left: 6px;
    right: 6px;
    top: 50%;
    height: 1px;
    transform: translateY(-0.5px);
    background: rgba(255, 255, 255, 0.35);
    z-index: 5;
    pointer-events: none;
}

.flip-card__top,
.flip-card__bottom,
.flip-card__top-flip,
.flip-card__bottom-flip {
    position: absolute;
    left: 0;
    right: 0;
    height: 50%;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-weight: 800;
    font-size: var(--flip-font);
    color: #f3f3f2;
    background: linear-gradient(#1f1f1f, #121212);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-sizing: border-box;
}

.flip-card__value {
    position: absolute;
    left: 0;
    right: 0;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    height: var(--card-h);
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.55);
}

.flip-card__top,
.flip-card__top-flip {
    top: 0;
    border-bottom: 0;
    border-top-left-radius: var(--flip-radius);
    border-top-right-radius: var(--flip-radius);
    overflow: hidden;
}

.flip-card__bottom,
.flip-card__bottom-flip {
    bottom: 0;
    border-top: 0;
    border-bottom-left-radius: var(--flip-radius);
    border-bottom-right-radius: var(--flip-radius);
    overflow: hidden;
}

.flip-card__top .flip-card__value,
.flip-card__top-flip .flip-card__value {
    top: 0;
}

.flip-card__bottom .flip-card__value,
.flip-card__bottom-flip .flip-card__value {
    bottom: 0;
}

.flip-card__top::after,
.flip-card__top-flip::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.14);
}

.flip-card__top-flip,
.flip-card__bottom-flip {
    backface-visibility: hidden;
}

.flip-card__top-flip {
    transform-origin: bottom;
    transform: rotateX(0deg);
    z-index: 3;
    display: none;
}

.flip-card__bottom-flip {
    transform-origin: top;
    transform: rotateX(90deg);
    z-index: 2;
    display: none;
}

.flip-card.is-flipping .flip-card__top-flip {
    display: flex;
    animation: flipTop 0.12s linear forwards;
}

.flip-card.is-flipping .flip-card__bottom-flip {
    display: flex;
    animation: flipBottom 0.12s linear forwards;
    animation-delay: 0.06s;
}

@keyframes flipTop {
    to {
        transform: rotateX(-90deg);
    }
}

@keyframes flipBottom {
    to {
        transform: rotateX(0deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    .flip-card.is-flipping .flip-card__top-flip,
    .flip-card.is-flipping .flip-card__bottom-flip {
        animation: none;
    }
}

.landing__lead {
    font-size: 16px;
    line-height: 1.6;
    margin: 0 0 10px;
    color: #2a2622;
}

.flash {
    margin: 0 0 18px;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(6px);
    font-size: 14px;
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.flash--success {
    border-color: rgba(46, 125, 50, 0.22);
}

.flash--error {
    border-color: rgba(198, 40, 40, 0.22);
}

.flash--hide {
    opacity: 0;
    transform: translateY(-6px);
}

.flash-dialog {
    width: min(720px, calc(100vw - 32px));
    border: 0;
    padding: 0;
    background: transparent;
}

.flash-dialog::backdrop {
    background: rgba(20, 12, 8, 0.5);
}

.flash-dialog__panel {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 26px 60px rgba(20, 12, 8, 0.28);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.flash-dialog__content {
    padding: 16px 16px 18px;
}

.flash-dialog__close {
    position: absolute;
    top: 8px;
    right: 10px;
    border: 0;
    background: transparent;
    cursor: pointer;
    font-size: 24px;
    line-height: 1;
    padding: 0 4px;
    color: #2a2622;
}

.flash-dialog--hide {
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.signup-card {
    margin-top: 22px;
    padding: 18px 18px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 18px 36px rgba(20, 12, 8, 0.15);
    backdrop-filter: blur(10px);
}

.signup-card__title {
    text-align: center;
    font-size: 13px;
    margin: 2px 0 12px;
    color: #2a2622;
}

.signup-form {
    display: grid;
    gap: 10px;
}

.signup-input {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid rgba(0, 0, 0, 0.18);
    border-radius: 10px;
    padding: 12px 12px;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.95);
    outline: none;
}

.signup-input:focus {
    border-color: rgba(93, 74, 130, 0.55);
    box-shadow: 0 0 0 4px rgba(93, 74, 130, 0.12);
}

.signup-submit {
    width: 100%;
    border: 0;
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 15px;
    cursor: pointer;
    background: #8f86a2;
    color: #fff;
}

.signup-submit:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.signup-submit:hover {
    background: #7f7496;
}

.signup-errors {
    margin: 2px 0 0;
    padding: 0;
    list-style: none;
    font-size: 13px;
    color: #7b1f1f;
}

.signup-card__privacy {
    margin: 12px 0 0;
    font-size: 12px;
    line-height: 1.5;
    color: #3a332d;
}

.signup-card__note {
    margin: 12px 0 0;
    font-size: 12px;
    line-height: 1.5;
    color: #3a332d;
}

.signup-card__link {
    display: inline-block;
    margin-left: 6px;
    color: #5d4a82;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.signup-card__link:hover {
    color: #4c3b70;
}

.unsubscribe-dialog {
    width: min(520px, calc(100vw - 32px));
    border: 0;
    border-radius: 18px;
    padding: 0;
    box-shadow: 0 26px 60px rgba(20, 12, 8, 0.28);
}

.unsubscribe-dialog::backdrop {
    background: rgba(20, 12, 8, 0.5);
}

.unsubscribe-dialog__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    background: rgba(247, 243, 239, 0.95);
}

.unsubscribe-dialog__title {
    font-size: 14px;
    font-weight: 700;
}

.unsubscribe-dialog__close {
    border: 0;
    background: transparent;
    cursor: pointer;
    font-size: 24px;
    line-height: 1;
    padding: 0 4px;
    color: #2a2622;
}

.unsubscribe-dialog__body {
    padding: 16px 16px 18px;
    background: rgba(255, 255, 255, 0.96);
}

.unsubscribe-dialog__text {
    margin: 0 0 12px;
    font-size: 13px;
    line-height: 1.5;
    color: #3a332d;
}

.landing__social {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 22px;
    font-size: 13px;
    color: #2a2622;
}

.social-link {
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #1e1b18;
    text-decoration: none;
}

.social-link svg {
    width: 20px;
    height: 20px;
    display: block;
}

@media (max-width: 960px) {
    .landing-page {
        padding: 18px;
    }

    .landing-card {
        grid-template-columns: 1fr;
    }

    .landing-card__content {
        padding: 34px 22px 28px;
    }

    .landing-card__media {
        background-image: url("/img/image_mobile.png");
        min-height: 220px;
        order: -1;
    }

    .guide-overlay {
        display: none;
    }

    .guide-card {
        display: flex;
    }

    .landing__title {
        font-size: clamp(26px, 8.6vw, 40px);
        letter-spacing: -0.03em;
    }

    .countdown {
        --flip-w: clamp(18px, 5.8vw, 34px);
        --flip-h: calc(var(--flip-w) * 1.25);
        --flip-font: calc(var(--flip-w) * 0.68);
        --flip-radius: calc(var(--flip-w) * 0.23);
        --digit-gap: clamp(3px, 0.9vw, 5px);
        --group-gap: clamp(4px, 1.2vw, 7px);
        --sep-size: clamp(14px, 4vw, 18px);
        --sep-pad: clamp(6px, 1.8vw, 9px);
    }

    .flip-card {
        height: var(--card-h);
    }

    .flip-card__top,
    .flip-card__bottom,
    .flip-card__top-flip,
    .flip-card__bottom-flip {
        font-size: var(--flip-font);
    }
}

@media (max-width: 420px) {
    .countdown {
        --flip-w: clamp(14px, 4.8vw, 24px);
        --flip-h: calc(var(--flip-w) * 1.22);
        --flip-font: calc(var(--flip-w) * 0.72);
        --flip-radius: calc(var(--flip-w) * 0.24);
        --digit-gap: clamp(2px, 0.7vw, 4px);
        --group-gap: clamp(3px, 0.9vw, 6px);
        --sep-size: clamp(12px, 3.4vw, 16px);
        --sep-pad: 0px;
        align-items: center;
    }

    .countdown__label {
        font-size: 10px;
    }

    .countdown__label-full {
        display: none;
    }

    .countdown__label-short {
        display: inline;
    }

    .landing__title {
        font-size: clamp(22px, 7.6vw, 30px);
        letter-spacing: -0.03em;
        white-space: nowrap;
    }
}

@media (max-width: 360px) {
    .countdown {
        --flip-w: clamp(12px, 4.2vw, 20px);
        --digit-gap: 2px;
        --group-gap: 3px;
        --sep-size: 12px;
    }
}

@media (max-height: 700px) {
    .landing-page {
        align-items: flex-start;
    }
}