/* =========================================================
   AtlasRoute common modal
   Reusable on public pages and admin pages.

   Basic markup:
   <button type="button" data-modal-open="example-modal">Open</button>

   <div class="app-modal" id="example-modal" hidden data-modal>
       <div class="app-modal__backdrop" data-modal-close></div>
       <div class="app-modal__dialog" role="dialog" aria-modal="true"
            aria-labelledby="example-modal-title" tabindex="-1">
           <div class="app-modal__header">
               <div>
                   <small>INFORMATION</small>
                   <h2 id="example-modal-title">Title</h2>
               </div>
               <button class="app-modal__close" type="button"
                       aria-label="閉じる" data-modal-close>×</button>
           </div>
           <div class="app-modal__body">...</div>
       </div>
   </div>
   ========================================================= */

:root {
    --app-modal-duration: 280ms;
    --app-modal-ease: cubic-bezier(.22, .8, .24, 1);
    --app-modal-blue: #03346b;
    --app-modal-gold: #c9a45d;
}

body.app-modal-open {
    overflow: hidden;
}

.app-modal[hidden] {
    display: none !important;
}

.app-modal {
    position: fixed;
    inset: 0;
    z-index: 5000;
    display: grid;
    place-items: center;
    box-sizing: border-box;
    padding: 22px;

    visibility: hidden;
    pointer-events: none;
}

.app-modal.is-active {
    visibility: visible;
    pointer-events: auto;
}

.app-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 18, 38, .64);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);

    opacity: 0;
    transition:
        opacity var(--app-modal-duration) ease;
}

.app-modal__dialog {
    position: relative;
    z-index: 1;
    width: min(560px, 100%);
    max-height: min(78vh, 620px);
    overflow: auto;
    overscroll-behavior: contain;

    border: 1px solid rgba(255, 255, 255, .46);
    border-radius: 22px;
    background:
        radial-gradient(circle at 92% 0%, rgba(201, 164, 93, .11), transparent 16rem),
        #fff;
    box-shadow: 0 30px 90px rgba(1, 20, 45, .34);

    opacity: 0;
    transform: translateY(16px) scale(.982);
    transform-origin: center center;
    transition:
        opacity var(--app-modal-duration) ease,
        transform var(--app-modal-duration) var(--app-modal-ease);
    will-change: opacity, transform;
}

.app-modal.is-open .app-modal__backdrop {
    opacity: 1;
}

.app-modal.is-open .app-modal__dialog {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.app-modal__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding: 24px 24px 18px;
    border-bottom: 1px solid #e9eef4;
}

.app-modal__header small {
    display: block;
    margin-bottom: 5px;
    color: var(--app-modal-gold);
    font-size: 9px;
    font-weight: 900;
    letter-spacing: .16em;
}

.app-modal__header h1,
.app-modal__header h2,
.app-modal__header h3 {
    margin: 0;
    color: var(--app-modal-blue);
    font-size: 22px;
    line-height: 1.35;
    letter-spacing: -.025em;
}

.app-modal__close {
    display: grid;
    place-items: center;
    flex: 0 0 34px;
    width: 34px;
    height: 34px;
    padding: 0;

    border: 1px solid #dce5ee;
    border-radius: 50%;
    background: #f7f9fb;
    color: #46647f;

    font: inherit;
    font-size: 21px;
    font-weight: 400;
    line-height: 1;
    cursor: pointer;

    transition:
        background .18s ease,
        color .18s ease,
        transform .18s ease,
        border-color .18s ease;
}

.app-modal__close:hover {
    transform: rotate(5deg);
    border-color: #cddbe8;
    background: #edf3f9;
    color: var(--app-modal-blue);
}

.app-modal__close:focus-visible,
[data-modal-open]:focus-visible {
    outline: 0;
    box-shadow: 0 0 0 3px rgba(10, 92, 168, .14);
}

.app-modal__body {
    padding: 22px 24px 26px;
    color: #526b82;
    font-size: 13px;
    line-height: 1.9;
}

.app-modal__body p {
    margin: 0;
}

.app-modal__body p + p {
    margin-top: 12px;
}

.app-modal__body code {
    font-size: .94em;
}

/* Optional size modifiers for future pages */
.app-modal--small .app-modal__dialog {
    width: min(430px, 100%);
}

.app-modal--wide .app-modal__dialog {
    width: min(820px, 100%);
}

.app-modal--large .app-modal__dialog {
    width: min(1040px, 100%);
    max-height: min(86vh, 820px);
}

@media (max-width: 520px) {
    .app-modal {
        padding: 14px;
    }

    .app-modal__dialog {
        max-height: 84vh;
        border-radius: 18px;
    }

    .app-modal__header {
        padding: 20px 18px 15px;
    }

    .app-modal__header h1,
    .app-modal__header h2,
    .app-modal__header h3 {
        font-size: 19px;
    }

    .app-modal__body {
        padding: 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    :root {
        --app-modal-duration: 1ms;
    }

    .app-modal__backdrop,
    .app-modal__dialog {
        transition-duration: 1ms !important;
    }
}