/* =========================================
   TaleInn 全站 Footer — 第五版
========================================= */

/*
   Sticky footer 的正確做法：
   讓頁面的 main 自己撐滿剩餘高度，而不是讓 footer 用 margin-top:auto
   製造一塊屬於 body 的空白區。

   這樣探書櫃檯內容較短時，footer 上方延伸出來的區域仍屬於
   .discover-page，因此會維持 var(--bg-lightbrown) 背景。
*/
html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    min-height: 100dvh;

    display: flex;
    flex-direction: column;
}

body > main {
    flex: 1 0 auto;
    width: 100%;
}

.taleinn-footer {
    width: 100%;
    flex: 0 0 auto;

    background-color: var(--bg-darkbrown);
    color: var(--text-lightbrown);
}


/* =========================================
   桌機：三個區塊

   1. Logo + 標語
   2. 四大社群
   3. 法律資訊 + Copyright

   三個區塊之間使用同一組 gap，
   視窗縮小時兩段間距會一起縮小。
========================================= */

.taleinn-footer > .taleinn-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;

    width: 100%;
    max-width: none;

    margin: 0;

    gap:
        clamp(
            18px,
            3vw,
            54px
        );

    padding:
        18px
        20px;
}


/* =========================================
   1. Logo + 標語
========================================= */

.taleinn-footer-brand {
    display: flex;
    align-items: center;

    min-width: 0;

    gap: 12px;

    flex: 0 1 auto;
}


/* 與 Header Logo 同尺寸。 */
.taleinn-footer-logo {
    display: block;

    width: 25px;
    height: auto;
    min-width: 25px;

    flex-shrink: 0;

    object-fit: contain;
}


.taleinn-footer-tagline {
    margin: 0;

    color: var(--text-lightbrown);

    font-size: 0.94rem;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: 0.03em;

    white-space: nowrap;
}


/* =========================================
   2. 四大社群
========================================= */

.taleinn-footer-socials {
    display: flex;
    align-items: center;
    justify-content: center;

    gap: 14px;

    min-width: max-content;
    flex: 0 0 auto;
}


.taleinn-footer-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    width: 28px;
    height: 28px;

    padding: 4px;

    color: var(--text-lightbrown);
    text-decoration: none;

    background-color: transparent;

    transition:
        color 0.18s ease,
        background-color 0.18s ease;
}


.taleinn-footer-social-link:not(.is-placeholder) {
    cursor: pointer;
}


.taleinn-footer-social-link:hover,
.taleinn-footer-social-link:focus-visible {
    background-color: var(--bg-card-lightbrown);
    color: var(--title-darkbrown);
}


.taleinn-footer-social-link:focus-visible {
    outline: 2px solid var(--bg-card-lightbrown);
    outline-offset: 2px;
}


.taleinn-footer-social-icon {
    display: block;

    width: 100%;
    height: 100%;

    fill: currentColor;
}


/* =========================================
   3. 法律資訊 + Copyright
========================================= */

.taleinn-footer-meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;

    gap: 16px;

    min-width: max-content;
    flex: 0 0 auto;
}


.taleinn-footer-legal {
    display: flex;
    align-items: center;
    justify-content: flex-end;

    gap: 7px;

    min-width: max-content;

    text-align: right;
}


.taleinn-footer-legal a,
.taleinn-footer-legal-separator,
.taleinn-footer-copyright {
    color: var(--text-lightbrown);

    font-size: 0.82rem;
    line-height: 1.45;
}


.taleinn-footer-legal a {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 2px 5px;

    background-color: transparent;
    color: var(--text-lightbrown);
    text-decoration: none;

    transition:
        color 0.18s ease,
        background-color 0.18s ease;
}


.taleinn-footer-legal a:hover,
.taleinn-footer-legal a:focus-visible {
    background-color: var(--bg-card-lightbrown);
    color: var(--title-darkbrown);
}


.taleinn-footer-legal a:focus-visible {
    outline: 2px solid var(--bg-card-lightbrown);
    outline-offset: 2px;
}


.taleinn-footer-copyright {
    margin: 0;

    letter-spacing: 0.025em;

    text-align: right;
    white-space: nowrap;
}


/* =========================================
   <= 850px

   當桌機三區之間已經不適合繼續縮時，
   四大社群移到標語下方。

   法律資訊 + Copyright 仍視為同一個右側區塊。
========================================= */

@media (max-width: 850px) {

    .taleinn-footer > .taleinn-footer-inner {
        display: grid;
        grid-template-columns:
            minmax(0, 1fr)
            max-content;
        grid-template-areas:
            "brand meta"
            "social meta";

        align-items: center;

        row-gap: 8px;
        column-gap:
            clamp(
                16px,
                3vw,
                28px
            );
    }


    .taleinn-footer-brand {
        grid-area: brand;
    }


    .taleinn-footer-socials {
        grid-area: social;

        justify-self: start;
    }


    .taleinn-footer-meta {
        grid-area: meta;
    }

}


/* =========================================
   <= 650px

   Copyright 排到法律資訊下方。
========================================= */

@media (max-width: 650px) {

    .taleinn-footer-meta {
        flex-direction: column;
        align-items: flex-end;

        gap: 6px;
    }

}


/* =========================================
   <= 520px：手機版

   Logo + 標語
   四大社群
   服務條款 ｜ 隱私權政策
   © 2026 TaleInn

   全部置中。
========================================= */

@media (max-width: 520px) {

    .taleinn-footer > .taleinn-footer-inner {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;

        padding:
            18px
            20px;

        gap: 10px;
    }


    .taleinn-footer-brand {
        justify-content: center;

        width: 100%;
    }


    .taleinn-footer-tagline {
        white-space: normal;
        text-align: center;
    }


    .taleinn-footer-socials {
        justify-content: center;
    }


    .taleinn-footer-meta {
        align-items: center;
        justify-content: center;

        gap: 6px;
    }


    .taleinn-footer-legal,
    .taleinn-footer-copyright {
        justify-content: center;

        text-align: center;
    }

}


/* =========================================
   <= 400px
   Footer 左右 padding 跟 Header 一致改成 8px。
========================================= */

@media (max-width: 400px) {

    .taleinn-footer > .taleinn-footer-inner {
        padding-left: 8px;
        padding-right: 8px;
    }


    .taleinn-footer-brand {
        gap: 8px;
    }


    .taleinn-footer-tagline {
        font-size: 0.82rem;
        letter-spacing: 0.015em;
    }


    .taleinn-footer-social-link {
        width: 24px;
        height: 24px;
    }


    .taleinn-footer-socials {
        gap: 12px;
    }


    .taleinn-footer-legal a,
    .taleinn-footer-legal-separator,
    .taleinn-footer-copyright {
        font-size: 0.76rem;
    }

}