/* Modal owner: shell, quick-start guide and card-feature navigator. */

.modal {
    --modal-overlay-padding: 16px;
    --modal-small-width: 580px;
    --modal-small-max-height: 780px;
    --modal-large-width: 1040px;
    --modal-content-gap: clamp(18px, 1.9vw, 26px);
    --modal-content-padding-top: clamp(52px, 4.5vw, 66px);
    --modal-content-padding-x: clamp(20px, 2.5vw, 34px);
    --modal-content-padding-bottom: clamp(20px, 2.4vw, 32px);
    --modal-title-size: clamp(24px, 2.15vw, 40px);
    --modal-title-line-height: 1.2;
    --modal-title-letter-spacing: -0.015em;
    --modal-body-font-size: clamp(14px, 1.2vw, 16px);
    --modal-body-line-height: 1.58;
    --modal-list-gap: var(--space-4);
    --modal-close-size: 34px;
    --modal-close-offset: 14px;
    --modal-close-icon-width: 12px;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--modal-overlay-padding, 16px);
    margin: 0;
    box-sizing: border-box;
    background: transparent;
    overflow: auto;
    overscroll-behavior: contain;
}

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

.modal[data-open="true"] {
    display: flex;
}

.modal__dialog {
    width: min(var(--modal-large-width, 1040px), calc(100vw - 32px));
    max-width: min(var(--modal-large-width, 1040px), calc(100vw - 32px));
    max-height: calc(100dvh - 32px);
    margin: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.modal[data-modal-size="small"] .modal__dialog {
    width: min(var(--modal-small-width, 580px), calc(100vw - 32px));
    max-width: min(var(--modal-small-width, 580px), calc(100vw - 32px));
}

.modal__sheet {
    --modal-quick-start-block-radius: var(--surface-radius);
    --modal-quick-start-block-border: 1px solid var(--theme-border-normal);
    --modal-quick-start-block-bg: var(--theme-surface-subtle);
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    min-height: 0;
    border-radius: var(--surface-radius);
    border: 1px solid var(--theme-border-normal);
    background: var(--theme-surface-base);
    box-shadow: none;
    overflow: hidden;
}

.modal__body {
    width: 100%;
    min-height: 0;
    display: grid;
    gap: var(--modal-content-gap, 18px);
    padding: var(--modal-content-padding-top, clamp(52px, 4.5vw, 66px))
             var(--modal-content-padding-x, clamp(20px, 2.5vw, 34px))
             var(--modal-content-padding-bottom, clamp(20px, 2.4vw, 32px));
    overflow-y: auto;
}

.modal[data-modal-size="small"] .modal__body {
    max-height: min(var(--modal-small-max-height, 780px), calc(100dvh - 96px));
}

.modal__body > * {
    min-width: 0;
}

.modal__body > :is(h1, h2, h3):first-child {
    padding-right: 44px;
}

:where(.modal) h2 {
    margin: 0;
    font-size: var(--modal-title-size, clamp(24px, 2.15vw, 40px));
    line-height: var(--modal-title-line-height, 1.2);
    letter-spacing: var(--modal-title-letter-spacing, -0.015em);
    color: var(--text-primary);
}

.modal__body p,
.modal__body li {
    margin: 0;
    color: var(--text-primary);
    font-size: var(--modal-body-font-size, clamp(14px, 1.2vw, 16px));
    line-height: var(--modal-body-line-height, 1.58);
}

.modal__body ul {
    margin: 0;
    padding-left: 20px;
    display: grid;
    gap: var(--modal-list-gap, 12px);
}

.blackout {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal-backdrop);
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--motion-duration-base) var(--motion-ease),
                visibility var(--motion-duration-base) var(--motion-ease);
}

.blackout[data-open="true"] {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}

.modal__close {
    cursor: pointer;
    position: relative;
    width: var(--modal-close-size, 34px);
    height: var(--modal-close-size, 34px);
    min-width: var(--modal-close-size, 34px);
    min-height: var(--modal-close-size, 34px);
    padding: 0;
    border-radius: var(--modal-close-radius);
    border: var(--modal-close-border);
    background: var(--modal-close-bg);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    appearance: none;
    -webkit-appearance: none;
}

.modal__sheet > .modal__close {
    position: absolute;
    right: var(--modal-close-offset, 14px);
    top: var(--modal-close-offset, 14px);
}

.modal__close[data-close-compact] {
    --modal-close-size: 30px;
}

.modal__close::before,
.modal__close::after {
    content: "";
    position: absolute;
    width: var(--modal-close-icon-width, 12px);
    height: 1.5px;
    border-radius: var(--radius-pill);
    background: currentColor;
}

.modal__close::before {
    transform: rotate(45deg);
}

.modal__close::after {
    transform: rotate(-45deg);
}

.modal__close:hover,
.modal__close:focus-visible {
    border-color: var(--modal-close-hover-border);
    background: var(--modal-close-hover-bg);
    color: var(--modal-close-hover-color);
    outline: none;
}

.modal__footer {
    display: flex;
    width: fit-content;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 0 8px 8px auto;
    align-self: flex-end;
}

.modal__footer.is-single {
    gap: 0;
}

.modal-nav-button {
    position: relative;
    width: 42px;
    height: 42px;
    min-width: 42px;
    margin: 0;
    border-radius: var(--radius-pill);
    border: 1px solid var(--surface-border-subtle);
    background: var(--theme-surface-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.modal-nav-button::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 44%;
    height: 44%;
    background: url('/static/assets/ui/angle_right.png') center / contain no-repeat;
    transform: translate(-50%, -50%);
}

.modal-nav-button.is-prev::before {
    transform: translate(-50%, -50%) scaleX(-1);
}

.modal-nav-button:hover,
.modal-nav-button:focus-visible {
    background: var(--hover-btn-bg-color);
    outline: none;
}

.modal-nav-button[hidden] {
    display: none;
}

.modal--card-feature {
    --modal-large-width: 1120px;
}

.modal--card-feature .modal__body {
    gap: clamp(20px, 2.6vw, 30px);
    padding-top: clamp(74px, 6vw, 100px);
    padding-left: clamp(24px, 3vw, 42px);
    padding-right: clamp(24px, 3vw, 42px);
    padding-bottom: clamp(28px, 3.2vw, 40px);
}

.card-feature-modal__content,
.card-feature-modal__content .guide-modal-step,
.card-feature-modal__content .home-head {
    display: grid;
    gap: 18px;
}

.card-feature-modal__content .guide-modal-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card-feature-modal__content .guide-checklist {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px;
}

.card-feature-modal__content .guide-checklist li {
    position: relative;
    padding-inline-start: 18px;
}

.card-feature-modal__content .guide-checklist li::before {
    content: "";
    position: absolute;
    inset-inline-start: 0;
    top: 0.72em;
    width: 8px;
    height: 8px;
    border-radius: var(--radius-pill);
    background: var(--theme-surface-accent-soft);
    transform: translateY(-50%);
}

.modal--quick-start .modal__body {
    gap: clamp(20px, 2.4vw, 28px);
    padding: clamp(72px, 6vw, 108px) clamp(28px, 4vw, 56px) clamp(40px, 4vw, 64px);
}

.modal--quick-start .quick-start-guide {
    display: grid;
    gap: clamp(18px, 2.6vw, 28px);
}

.modal--quick-start .quick-start-block {
    display: grid;
    gap: 12px;
    padding: clamp(20px, 2.8vw, 30px);
    border-radius: var(--modal-quick-start-block-radius);
    border: var(--modal-quick-start-block-border);
    background: var(--modal-quick-start-block-bg);
}

.modal--quick-start .quick-start-block--hero {
    gap: 14px;
    padding: clamp(22px, 3vw, 34px);
    background: var(--theme-surface-base);
}

.modal--quick-start .quick-start-kicker {
    margin: 0;
    font-size: var(--type-label-size);
    line-height: var(--type-label-line);
    font-weight: var(--hierarchy-title-weight);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.modal--quick-start h2 {
    font-size: clamp(30px, 3vw, 46px);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.modal--quick-start h3 {
    margin: 0;
    font-size: clamp(20px, 2vw, 30px);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.modal--quick-start .quick-start-block > :is(h2, h3, p, ul) {
    max-width: 72ch;
}

.modal--quick-start .quick-start-grid {
    display: grid;
    gap: clamp(12px, 1.8vw, 18px);
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.modal--quick-start .quick-start-stack {
    display: grid;
    gap: 10px;
    align-content: start;
}

.modal--quick-start .quick-start-note {
    color: var(--text-secondary);
    font-size: clamp(13px, 1.05vw, 15px);
}

body.modal-open {
    overflow: hidden;
}

body.modal-open .site-header {
    pointer-events: none;
}

@media (max-width: 960px) {
    .modal[data-open="true"] {
        padding: 10px;
    }

    .modal__dialog {
        width: calc(100vw - 20px);
        max-width: calc(100vw - 20px);
        max-height: calc(100dvh - 20px);
    }

    .modal--quick-start .quick-start-grid,
    .card-feature-modal__content .guide-modal-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :where(.modal) h2 {
        font-size: clamp(22px, 5.8vw, 28px);
    }

    .modal[data-modal-size="large"] {
        align-items: flex-start;
        padding-top: max(10px, env(safe-area-inset-top));
        padding-bottom: max(0px, env(safe-area-inset-bottom));
    }

    .modal[data-modal-size="large"] .modal__dialog {
        width: 100%;
        max-width: none;
        max-height: none;
    }

    .modal[data-modal-size="large"] .modal__sheet {
        min-height: calc(100dvh - max(10px, env(safe-area-inset-top)) - max(0px, env(safe-area-inset-bottom)));
        border-radius: var(--radius-3xl) var(--radius-3xl) var(--radius-none) var(--radius-none);
        border-left: 0;
        border-right: 0;
        border-bottom: 0;
    }

    .modal[data-modal-size="large"] .modal__body {
        padding-bottom: calc(16px + env(safe-area-inset-bottom));
    }

    .modal--quick-start .quick-start-block {
        padding: 16px;
        border-radius: var(--radius-xl);
    }

    .modal--quick-start h2 {
        font-size: 24px;
    }

    .modal--quick-start h3 {
        font-size: 20px;
    }

    .modal__footer {
        margin-left: auto;
        margin-right: auto;
        margin-bottom: max(4px, env(safe-area-inset-bottom));
    }
}

@media (max-width: 480px) {
    .modal {
        --modal-close-size: 32px;
        --modal-close-offset: 10px;
        --modal-close-icon-width: 11px;
    }
}