/**
 * IELTS LMS — Standalone Preview Shell
 * Shared viewport and preview-only shell styles for reading, listening,
 * writing, and speaking standalone templates.
 */

/* :has() fallback — class-based selectors for browsers without :has() support */
html.ielts-standalone-active {
    margin-top: 0 !important;
    height: 100%;
}

/* Modern browsers: use :has() */
html:has(body.ielts-standalone-preview),
html:has(body.ielts-standalone-mode) {
    margin-top: 0 !important;
    height: 100%;
}

body.ielts-standalone-preview,
body.ielts-standalone-mode {
    --ielts-standalone-bg: var(--ielts-lms-bg-subtle, #f1f5f9);
    margin: 0 !important;
    padding: 0 !important;
    min-height: 100vh;
    min-height: 100dvh;
    height: 100vh;
    height: 100dvh;
    overflow: hidden !important;
    background-color: var(--ielts-standalone-bg) !important;
    font-family: var(--ielts-lms-font-sans, "Inter", sans-serif) !important;
    color: var(--ielts-lms-text-body, #1e293b);
}

body.ielts-standalone-preview.admin-bar,
body.ielts-standalone-mode.admin-bar {
    margin-top: 0 !important;
}

body.ielts-standalone-preview #wpadminbar,
body.ielts-standalone-mode #wpadminbar {
    display: none !important;
}

body.ielts-standalone-preview .ielts-final-wrapper,
body.ielts-standalone-mode .ielts-final-wrapper {
    min-height: 100vh;
    min-height: 100dvh;
    height: 100vh;
    height: 100dvh;
    max-width: 100% !important;
    margin: 0 !important;
    background: #fff !important;
    border: none !important;
    border-radius: 0 !important;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

body.ielts-standalone-preview .ielts-main-interface-container,
body.ielts-standalone-mode .ielts-main-interface-container {
    flex: 1 1 auto !important;
    min-height: 0 !important;
    box-sizing: border-box !important;
}

body.reading-preview,
body.listening-preview,
body.writing-preview {
    --ielts-standalone-bg: var(--ielts-lms-bg-subtle, #f1f5f9);
}

body.speaking-preview {
    --ielts-standalone-bg: var(--ielts-lms-bg-page, #f8fafc);
}

body.reading-preview .ielts-main-interface-container {
    height: 100% !important;
    max-height: none !important;
    padding-bottom: var(--footer-height) !important;
}

body.reading-preview .ielts-passage-content p,
body.reading-preview .ielts-question-content p {
    margin-bottom: 1.5em !important;
    line-height: 1.8 !important;
    font-size: 16px !important;
    display: block !important;
}

body.reading-preview .ielts-passage-content h1,
body.reading-preview .ielts-passage-content h2,
body.reading-preview .ielts-passage-content h3,
body.reading-preview .ielts-passage-content h4 {
    margin-top: 1.5em !important;
    margin-bottom: 0.8em !important;
    color: #111827 !important;
    font-weight: 700 !important;
    line-height: 1.3 !important;
    display: block !important;
}

body.reading-preview .ielts-passage-content ul,
body.reading-preview .ielts-passage-content ol {
    margin-bottom: 1.5em !important;
    padding-left: 25px !important;
    display: block !important;
}

body.listening-preview .ielts-main-interface-container {
    height: 100% !important;
    max-height: none !important;
    padding-bottom: 45px !important;
}

body.writing-preview .ielts-main-interface-container {
    height: 100% !important;
    overflow: hidden !important;
}

/* :has() fallback — class-based selectors for writing test-completed scroll restoration */
html.ielts-writing-completed,
html.ielts-writing-completed body.ielts-standalone-preview.writing-preview,
html.ielts-writing-completed body.ielts-standalone-mode.writing-preview {
    height: auto !important;
    min-height: 100%;
    overflow: auto !important;
}

html.ielts-writing-completed body.ielts-standalone-preview.writing-preview .ielts-final-wrapper,
html.ielts-writing-completed body.ielts-standalone-mode.writing-preview .ielts-final-wrapper {
    height: auto !important;
    min-height: 100vh;
    min-height: 100dvh;
    overflow: visible !important;
}

html.ielts-writing-completed body.ielts-standalone-preview.writing-preview .ielts-main-interface-container,
html.ielts-writing-completed body.ielts-standalone-mode.writing-preview .ielts-main-interface-container {
    overflow: visible !important;
}

/* Modern browsers: use :has() */
html:has(body.writing-preview .ielts-writing-box.test-completed),
html:has(body.writing-preview .ielts-writing-box.test-completed) body.ielts-standalone-preview.writing-preview,
html:has(body.writing-preview .ielts-writing-box.test-completed) body.ielts-standalone-mode.writing-preview {
    height: auto !important;
    min-height: 100%;
    overflow: auto !important;
}

html:has(body.writing-preview .ielts-writing-box.test-completed) body.ielts-standalone-preview.writing-preview .ielts-final-wrapper,
html:has(body.writing-preview .ielts-writing-box.test-completed) body.ielts-standalone-mode.writing-preview .ielts-final-wrapper {
    height: auto !important;
    min-height: 100vh;
    min-height: 100dvh;
    overflow: visible !important;
}

html:has(body.writing-preview .ielts-writing-box.test-completed) body.ielts-standalone-preview.writing-preview .ielts-main-interface-container,
html:has(body.writing-preview .ielts-writing-box.test-completed) body.ielts-standalone-mode.writing-preview .ielts-main-interface-container {
    overflow: visible !important;
}

body.speaking-preview .ielts-final-wrapper {
    overflow-y: auto;
}

body.speaking-preview .speaking-widget-screen {
    min-height: calc(100vh - 100px);
    min-height: calc(100dvh - 100px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

@media (max-width: 768px) {
    body.reading-preview .ielts-main-interface-container,
    body.listening-preview .ielts-main-interface-container {
        padding-bottom: 50px !important;
        padding-bottom: calc(50px + env(safe-area-inset-bottom)) !important;
    }

    body.reading-preview .ielts-final-wrapper {
        padding: 0 !important;
    }

    body.speaking-preview .ielts-final-wrapper {
        padding: 10px 10px calc(14px + env(safe-area-inset-bottom)) !important;
    }
}