/* Цвета и размеры задаются в js/config.js через CSS-переменные. */

:root { color-scheme: light; --font-multiplier: 1; }
:root[data-theme="dark"] { color-scheme: dark; }

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
    font-family: 'Roboto', sans-serif;
    user-select: none;
}
img { -webkit-user-drag: none; }

/* Переключение темы */
.theme-switching *,
.theme-switching *::before,
.theme-switching *::after { transition: none !important; }
::view-transition-old(root),
::view-transition-new(root) { animation-duration: 0.3s; }

#theme-toggle {
    appearance: none;
    border: none;
    background: none;
    color: var(--main-color);
    position: absolute;
    top: 12px;
    right: 12px;
    width: var(--theme-toggle-size);
    height: var(--theme-toggle-size);
    padding: 3px;
    cursor: pointer;
    z-index: 10;
    border-radius: 50%;
    transition: transform 0.15s ease, background-color var(--fade-time) ease;
}
#theme-toggle:active { transform: scale(0.9); }
#theme-toggle svg { width: 100%; height: 100%; display: block; }
#theme-toggle .hidden-icon { display: none; }

.logo-dark { display: none; }
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block; }

/* Страница */
body, html {
    width: 100%;
    height: 100%;
    height: 100dvh;
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}
#app-container {
    width: 100%;
    height: 100%;
    max-width: var(--content-max-width);
    padding: var(--page-pad-top) var(--page-pad-x) max(var(--page-pad-bottom), env(safe-area-inset-bottom, 0px));
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

/* Логотип */
.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--logo-gap);
    width: 100%;
    flex-shrink: 0;
}
.logo-wrap { position: relative; display: flex; }
.policy-logo {
    height: var(--logo-height);
    min-height: var(--logo-min-height);
    max-height: var(--logo-max-height);
    width: auto;
    object-fit: contain;
}

/* Иконка книги справа от логотипа; размер — доля высоты логотипа */
.book-btn {
    appearance: none;
    border: none;
    background: none;
    padding: 0;
    position: absolute;
    left: calc(100% + var(--book-gap));
    top: 50%;
    height: calc(100% * var(--book-scale));
    aspect-ratio: 1;
    margin-top: var(--book-offset-y);
    transform: translateY(-50%);
    opacity: var(--book-opacity);
    cursor: pointer;
    transition: transform 0.15s ease;
}
.book-btn img { width: 100%; height: 100%; display: block; object-fit: contain; }
.book-btn:active { transform: translateY(-50%) scale(var(--press-scale)); }
.book-btn:focus-visible {
    outline: 2px solid var(--accent-border);
    outline-offset: 2px;
    border-radius: 8px;
}

/* Ряды иконок: по центру, если помещаются, иначе листаются вбок */
.apps-strip { position: relative; width: 100%; }
.apps-container {
    display: flex;
    flex-direction: column;
    gap: var(--app-rows-gap);
    width: 100%;
    margin-bottom: var(--apps-gap);
    flex-shrink: 0;
}
.apps-row {
    display: flex;
    align-items: flex-start;
    gap: var(--app-gap);
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scroll-snap-type: x proximity;
    scroll-padding-inline: 4px;
    scrollbar-width: none;
    padding: 2px 4px;
}
.apps-row::-webkit-scrollbar { display: none; }
/* Затухание края, за которым есть скрытые иконки */
.apps-row {
    --fade-l: 0px;
    --fade-r: 0px;
    -webkit-mask-image: linear-gradient(to right, transparent 0, #000 var(--fade-l), #000 calc(100% - var(--fade-r)), transparent 100%);
    mask-image: linear-gradient(to right, transparent 0, #000 var(--fade-l), #000 calc(100% - var(--fade-r)), transparent 100%);
}
.apps-strip.can-left .apps-row { --fade-l: var(--strip-fade); }
.apps-strip.can-right .apps-row { --fade-r: var(--strip-fade); }
.strip-arrow {
    appearance: none;
    border: none;
    position: absolute;
    top: calc(2px + var(--app-icon-size) / 2);
    width: var(--strip-arrow-size);
    height: var(--strip-arrow-size);
    margin-top: calc(var(--strip-arrow-size) / -2);
    border-radius: 50%;
    background: var(--gray-color);
    color: var(--text-color);
    box-shadow: 0 1px 3px var(--shadow-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--fade-time) ease, visibility var(--fade-time) ease;
}
.strip-arrow::before {
    content: "";
    position: absolute;
    inset: calc(var(--strip-arrow-hit-pad) * -1);
    border-radius: 50%;
}
.strip-arrow svg { width: var(--strip-arrow-icon); height: var(--strip-arrow-icon); display: block; }
.strip-arrow.left { left: 0; }
.strip-arrow.right { right: 0; }
/* Перетаскивание ряда мышью */
.apps-row.dragging { scroll-snap-type: none; cursor: grabbing; }
.apps-row.dragging .app-item { cursor: grabbing; }
.apps-strip.can-left .strip-arrow.left,
.apps-strip.can-right .strip-arrow.right { opacity: 0.9; visibility: visible; }
.apps-row > :first-child { margin-left: auto; }
.apps-row > :last-child { margin-right: auto; }
.app-item {
    flex: 0 0 auto;
    width: var(--app-item-width);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    text-decoration: none;
    color: inherit;
    scroll-snap-align: start;
    appearance: none;
    border: none;
    padding: 0;
    background: none;
    cursor: pointer;
    font: inherit;
}
.app-item img {
    width: var(--app-icon-size);
    height: var(--app-icon-size);
    object-fit: cover;
    display: block;
    border-radius: var(--app-icon-radius);
    transition: transform 0.15s ease;
}
.app-item:active img { transform: scale(var(--press-scale)); }
.apps-row.dragging .app-item:active img { transform: none; }
.app-item.dev-link img {
    object-fit: contain;
    border-radius: 0;
    padding: var(--dev-icon-pad);
}
.app-cap {
    font-size: var(--app-caption-size);
    line-height: 1.15;
    text-align: center;
    color: var(--slogan-color);
    width: 100%;
    min-height: 2.3em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.app-item:focus-visible {
    outline: 2px solid var(--accent-border);
    outline-offset: 2px;
    border-radius: 8px;
}

/* Окно политики */
.policy-wrapper {
    width: 100%;
    flex: 1;
    min-height: 0;
    border: 2px solid var(--gray-color);
    border-left: var(--panel-accent-width) solid var(--accent-border);
    border-radius: var(--panel-radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--panel-color);
}
.scroll-arrow {
    width: 100%;
    height: var(--scroll-arrow-height);
    background-color: var(--gray-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: calc(12px * var(--font-multiplier));
    cursor: pointer;
    flex-shrink: 0;
}
.policy-scroll-area {
    flex: 1;
    overflow-y: auto;
    scrollbar-width: none;
    padding: var(--policy-pad);
    font-size: calc(var(--text-size) * var(--font-multiplier));
    line-height: 1.5;
    text-align: left;
    user-select: text;
}
.policy-scroll-area::-webkit-scrollbar { display: none; }
.policy-title {
    font-size: calc(var(--title-size) * var(--font-multiplier));
    font-weight: 700;
    margin-bottom: 12px;
    text-align: center;
}
.policy-date {
    font-size: calc(var(--label-size) * var(--font-multiplier));
    color: var(--slogan-color);
    text-align: center;
    margin: -6px 0 12px;
}
.policy-box { display: none; }
.policy-box.active { display: block; }
ul { padding-left: 40px; margin: 8px 0 15px; }
li { margin-bottom: 4px; }

/* Кнопки языков и ползунок шрифта */
.controls-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-bottom: 15px;
}
.btn-lang {
    appearance: none;
    border: none;
    width: 60%;
    padding: 3px 0;
    font-size: calc(var(--lang-btn-size) * var(--font-multiplier));
    font-weight: bold;
    background-color: var(--gray-color);
    color: var(--text-color);
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    margin-bottom: 7px;
    box-shadow: 0 1px 2px var(--shadow-color);
    transition: width 0.3s ease, background-color var(--fade-time) ease;
    flex-shrink: 0;
}
.btn-lang.active-lang { width: 65%; background-color: var(--green-color); }
.font-size-box { width: 100%; margin: 15px 0 10px; text-align: center; flex-shrink: 0; }
#font-size-label { font-size: calc(var(--label-size) * var(--font-multiplier)); }
/* Ползунок шрифта: двигается только перетаскиванием кружка */
.font-slider {
    --pos: 0.5;
    position: relative;
    width: 80%;
    height: var(--slider-height);
    margin: 4px auto 0;
    outline: none;
}
.font-slider-track {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: var(--slider-track-height);
    transform: translateY(-50%);
    background: var(--gray-color);
    border-radius: 5px;
}
.font-slider-thumb {
    position: absolute;
    top: 50%;
    left: calc(var(--pos) * (100% - var(--slider-thumb-size)));
    width: var(--slider-thumb-size);
    height: var(--slider-thumb-size);
    margin-top: calc(var(--slider-thumb-size) / -2);
    border-radius: 50%;
    background: var(--range-color);
    box-shadow: 0 1px 2px var(--thumb-shadow);
    cursor: grab;
    touch-action: none;
    transition: transform 0.15s ease;
}
.font-slider-thumb::before {
    content: "";
    position: absolute;
    inset: calc(var(--slider-hit-pad) * -1);
    border-radius: 50%;
}
.font-slider-thumb.dragging { cursor: grabbing; transform: scale(1.2); }
.font-slider:focus-visible .font-slider-thumb {
    outline: 2px solid var(--accent-border);
    outline-offset: 2px;
}

/* Email и всплывающее уведомление */
.copy-email {
    color: var(--link-color);
    font-weight: bold;
    text-decoration: underline;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    transition: background-color var(--fade-time);
}
.copy-email:active { background-color: var(--gray-color); }
#toast {
    visibility: hidden;
    min-width: 250px;
    background-color: var(--toast-bg);
    color: var(--toast-text);
    text-align: center;
    border-radius: 8px;
    padding: 12px 16px;
    position: absolute;
    z-index: 1000;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: calc(var(--toast-size) * var(--font-multiplier));
    opacity: 0;
    transition: opacity 0.3s, bottom 0.3s, visibility 0.3s;
    box-shadow: 0 4px 6px var(--toast-shadow);
    pointer-events: none;
}
#toast.show { visibility: visible; opacity: 1; bottom: 50px; }

/* Окно приложения или книги */
.modal-overlay {
    position: fixed;
    inset: 0;
    height: 100%;
    height: 100dvh;
    background-color: var(--modal-backdrop);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--fade-time) ease, visibility var(--fade-time) ease;
}
.modal-overlay.show { opacity: 1; visibility: visible; }
.modal-window {
    background-color: var(--bg-color);
    width: 100%;
    max-width: var(--modal-max-width);
    height: 100%;
    border-radius: var(--modal-radius);
    box-shadow: 0 15px 35px var(--modal-shadow);
    display: flex;
    flex-direction: column;
    padding: var(--modal-pad);
    overflow: hidden;
}
.modal-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    margin-bottom: var(--modal-section-gap);
}
.modal-app-icon {
    width: var(--modal-icon-width);
    max-width: var(--modal-icon-max);
    aspect-ratio: 1;
    object-fit: contain;
    margin-bottom: 4px;
}
.modal-app-title {
    font-size: calc(var(--modal-title-size) * var(--font-multiplier));
    font-weight: bold;
    color: var(--text-color);
    text-decoration: none;
    margin-bottom: 8px;
    text-align: center;
    display: block;
}
#modal-drive-icon {
    display: none;
    height: 1.1em;
    vertical-align: middle;
    margin-left: 6px;
    position: relative;
    top: -2px;
}
#modal-drive-icon.show { display: inline-block; }
#modal-btn-drive {
    display: none;
    height: 1.1em;
    margin-left: 6px;
}
#modal-btn-drive.show { display: inline-block; }
.modal-app-slogan {
    font-size: calc(var(--modal-slogan-size) * var(--font-multiplier));
    font-weight: 600;
    color: var(--slogan-color);
    text-align: center;
}

/* Карусель картинок */
.modal-carousel {
    position: relative;
    overflow: hidden;
    padding-bottom: 5px;
    margin-bottom: var(--modal-section-gap);
    flex-shrink: 0;
    cursor: grab;
    touch-action: pan-y;
}
.modal-carousel.is-dragging { cursor: grabbing; }
.carousel-track {
    display: flex;
    gap: var(--carousel-gap);
    width: max-content;
    will-change: transform;
}
.modal-carousel img {
    height: var(--carousel-height);
    min-height: var(--carousel-min-height);
    width: auto;
    aspect-ratio: var(--screen-ratio);
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    flex-shrink: 0;
}
.modal-desc-area {
    flex: 1;
    overflow-y: auto;
    scrollbar-width: none;
    font-size: calc(var(--modal-desc-size) * var(--font-multiplier));
    line-height: 1.4;
    text-align: center;
    margin-bottom: var(--modal-section-gap);
    padding: 0 5px;
    user-select: text;
}
.modal-desc-area::-webkit-scrollbar { display: none; }
.modal-buttons { display: flex; gap: 10px; flex-shrink: 0; }
.modal-btn {
    appearance: none;
    border: none;
    flex: 1;
    padding: 3px 0;
    border-radius: 8px;
    font-weight: bold;
    font-size: calc(var(--modal-btn-size) * var(--font-multiplier));
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    cursor: pointer;
    box-shadow: 0 1px 2px var(--shadow-color);
    transition: background-color var(--fade-time);
    display: flex;
    justify-content: center;
    align-items: center;
}
.modal-btn-close { background-color: var(--gray-color); }
.modal-btn-play { background-color: var(--green-color); }

/* Полноэкранный просмотр */
.viewer-overlay {
    position: fixed;
    inset: 0;
    height: 100%;
    height: 100dvh;
    background-color: var(--viewer-backdrop);
    z-index: 3000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--fade-time) ease, visibility var(--fade-time) ease;
    cursor: pointer;
    touch-action: none;
}
.viewer-overlay.show { opacity: 1; visibility: visible; }
.viewer-image {
    max-width: 92vw;
    max-width: 92dvw;
    max-height: var(--viewer-max-size);
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 30px var(--viewer-shadow);
    transform: scale(0.95);
    transition: transform var(--fade-time) ease, opacity 0.15s ease;
}
.viewer-overlay.show .viewer-image { transform: scale(1); }
.viewer-counter {
    position: absolute;
    left: 50%;
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    transform: translateX(-50%);
    padding: 3px 10px;
    border-radius: 12px;
    background: var(--viewer-backdrop);
    color: #fff;
    font-size: var(--viewer-counter-size);
    font-variant-numeric: tabular-nums;
    pointer-events: none;
}
/* Стрелки листания: только для мыши */
.viewer-nav {
    appearance: none;
    border: none;
    position: absolute;
    top: 50%;
    width: var(--viewer-nav-size);
    height: var(--viewer-nav-size);
    margin-top: calc(var(--viewer-nav-size) / -2);
    border-radius: 50%;
    background: var(--viewer-backdrop);
    color: #fff;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
.viewer-nav svg { width: 50%; height: 50%; display: block; }
.viewer-nav.prev { left: 16px; }
.viewer-nav.next { right: 16px; }
.viewer-nav:active { transform: scale(var(--press-scale)); }
@media (hover: hover) and (pointer: fine) {
    .viewer-nav { display: flex; }
}

/* Страница 404 */
.page-404 #app-container { justify-content: center; }
.nf-card {
    width: 100%;
    max-width: var(--not-found-card-width);
    background-color: var(--panel-color);
    border: 2px solid var(--gray-color);
    border-left: var(--panel-accent-width) solid var(--accent-border);
    border-radius: var(--panel-radius);
    padding: 32px 24px 28px;
    text-align: center;
    box-shadow: 0 1px 2px var(--shadow-color);
}
.nf-code {
    font-size: var(--not-found-code-size);
    font-weight: 700;
    line-height: 1;
    letter-spacing: 2px;
    color: var(--not-found-code);
    margin-bottom: 12px;
}
.nf-title { font-size: var(--not-found-title-size); font-weight: 700; margin-bottom: 10px; }
.nf-text { font-size: var(--not-found-text-size); line-height: 1.5; color: var(--slogan-color); }