:root {
    /* Нативная интеграция цветов Telegram */
    --bg: var(--tg-theme-bg-color, #ffffff);
    --sec-bg: var(--tg-theme-secondary-bg-color, #f4f4f5);
    --text: var(--tg-theme-text-color, #000000);
    --hint: var(--tg-theme-hint-color, #8e8e93);
    --btn: var(--tg-theme-button-color, #007aff);
    --btn-text: var(--tg-theme-button-text-color, #ffffff);
    --err: var(--tg-theme-destructive-text-color, #ff3b30);
    
    /* Формирование стекол с учетом адаптивных цветов */
    --glass-bg: color-mix(in srgb, var(--bg) 70%, transparent);
    --glass-sec-bg: color-mix(in srgb, var(--sec-bg) 65%, transparent);
    --glass-border: color-mix(in srgb, var(--hint) 25%, transparent);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

@media (prefers-color-scheme: dark) {
    :root {
        --err: var(--tg-theme-destructive-text-color, #ff453a);
        --glass-bg: color-mix(in srgb, var(--bg) 75%, transparent);
        --glass-sec-bg: color-mix(in srgb, var(--sec-bg) 65%, transparent);
        --glass-border: color-mix(in srgb, var(--hint) 30%, transparent);
        --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
    }
}

* {
    -webkit-tap-highlight-color: transparent;
    outline: none;
    box-sizing: border-box;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 0;
    user-select: none;
    min-height: 100vh;
}

/* ФОНОВЫЙ БЛЮР */
#dynamic-bg {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: -2;
    overflow: hidden;
}
#dynamic-bg img {
    width: 100%; height: 100%;
    object-fit: cover;
    filter: blur(40px) brightness(0.6);
    transform: scale(1.15);
    transition: opacity 0.5s ease;
}
.bg-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: linear-gradient(to bottom, color-mix(in srgb, var(--bg) 60%, transparent), var(--bg));
    z-index: -1;
}

/* ЭФФЕКТ НАЖАТИЯ */
.tap-effect {
    transition: transform 0.15s ease, opacity 0.15s ease;
    cursor: pointer;
}
.tap-effect:active {
    transform: scale(0.96);
    opacity: 0.85;
}

/* ПАРЯЩИЕ ПАНЕЛИ CLOUD-BAR */
.cloud-bar {
    position: fixed;
    left: 15px; right: 15px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: var(--glass-shadow);
    z-index: 100;
}

.cloud-bar-top {
    top: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
}

.top-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-avatar {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: var(--glass-sec-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}
.top-titles {
    display: flex;
    flex-direction: column;
}
.header-title {
    font-weight: 700;
    font-size: 15px;
    letter-spacing: -0.2px;
}
.header-sub {
    font-size: 11px;
    color: var(--hint);
}
.perf-badge {
    background: var(--glass-sec-bg);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    color: var(--btn);
}

/* НИЖНИЙ БАР */
.bottom-bar {
    bottom: 20px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 6px 10px;
}
.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--hint);
    width: 30%;
    padding: 6px 0;
    transition: color 0.2s;
}
.nav-item.active {
    color: var(--btn);
}
.nav-icon {
    width: 24px; height: 24px;
}
.nav-icon svg {
    width: 100%; height: 100%;
    stroke: currentColor; fill: none; stroke-width: 2;
}
.nav-label {
    font-size: 10px;
    margin-top: 3px;
    font-weight: 600;
}

/* ЭКРАНЫ */
#screens-container {
    padding: 85px 15px 100px;
}
.app-screen {
    display: none;
    flex-direction: column;
    gap: 15px;
}
.app-screen.active {
    display: flex;
}

/* СТЕКЛЯННЫЕ БЛОКИ */
.glass-block {
    background: var(--glass-bg);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 16px;
    box-shadow: var(--glass-shadow);
}

/* СТАТИСТИКА (ДАШБОРД) */
.welcome-card {
    background: linear-gradient(135deg, color-mix(in srgb, var(--btn) 15%, transparent), var(--glass-bg));
}
.welcome-header {
    display: flex;
    align-items: center;
    gap: 16px;
}
.avatar-large {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: var(--btn);
    color: var(--btn-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 4px 15px rgba(0, 122, 255, 0.3);
}
.welcome-texts h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
}
.subtitle {
    margin: 4px 0 0;
    font-size: 13px;
    color: var(--hint);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.stat-card {
    display: flex;
    flex-direction: column;
    padding: 14px;
}
.stat-icon {
    width: 28px; height: 28px;
    margin-bottom: 8px;
}
.stat-icon svg {
    width: 100%; height: 100%;
    stroke: currentColor; fill: none; stroke-width: 2;
}
.stat-value {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
}
.stat-label {
    font-size: 11px;
    color: var(--hint);
    margin-top: 2px;
    text-transform: uppercase;
    font-weight: 600;
}
.action-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: color-mix(in srgb, var(--btn) 12%, transparent);
    border-color: color-mix(in srgb, var(--btn) 30%, transparent);
}
.action-title {
    font-weight: 700;
    font-size: 15px;
    color: var(--btn);
}
.action-subtitle {
    font-size: 12px;
    color: var(--hint);
    margin-top: 2px;
}
.action-arrow {
    color: var(--btn);
    font-weight: bold;
}

/* ФИЛЬТРЫ И ИНПУТЫ */
.glass-input {
    width: 100%;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid var(--glass-border);
    background: var(--glass-sec-bg);
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    appearance: none;
}
.input-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--hint);
    text-transform: uppercase;
    margin-bottom: 6px;
    display: block;
}
.select-row:not(:last-child) {
    margin-bottom: 12px;
}

/* ПЛАВАЮЩИЙ БАР ВЫБОРА */
.selection-bar {
    position: sticky;
    top: 75px;
    z-index: 50;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass-bg);
    border-color: var(--btn);
    padding: 10px 14px;
    margin-bottom: 10px;
}
.sel-count {
    font-size: 14px;
}
.sel-buttons {
    display: flex;
    gap: 8px;
}
.glass-btn-inline {
    padding: 8px 14px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: var(--glass-sec-bg);
    color: var(--text);
    font-weight: 600;
    font-size: 13px;
}
.glass-btn-inline.primary {
    background: var(--btn);
    color: var(--btn-text);
    border-color: transparent;
}

/* СЕТКА ПОСТОВ */
.content-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.post-card {
    background: var(--sec-bg);
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    border: 2px solid transparent;
    transition: transform 0.2s, border-color 0.2s;
}
.card-cover-wrapper {
    position: relative;
    width: 100%;
    padding-top: 135%;
    background: var(--sec-bg);
}
.card-cover {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.3s;
}
.post-card.selected {
    border-color: var(--btn);
    transform: scale(0.96);
}
.badge-status {
    position: absolute;
    top: 8px; right: 8px;
    padding: 4px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 700;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #fff;
}
.badge-status.sent {
    background: rgba(52, 199, 89, 0.85);
}
.badge-status.selected-tick {
    background: var(--btn);
}
.badge-rating {
    position: absolute;
    bottom: 8px; left: 8px;
    padding: 3px 6px;
    border-radius: 8px;
    font-size: 10px;
    font-weight: 700;
    backdrop-filter: blur(6px);
    background: rgba(0, 0, 0, 0.65);
    color: #fff;
}

/* МОДАЛКА */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: rgba(0, 0, 0, 0.45);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.modal-overlay.active {
    display: flex;
}
.glass-modal {
    width: 85vw;
    background: var(--glass-bg);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 20px;
    box-shadow: var(--glass-shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
}
.modal-badge-warn {
    background: color-mix(in srgb, var(--err) 20%, transparent);
    color: var(--err);
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
}
.glass-btn {
    padding: 12px;
    border-radius: 14px;
    border: 1px solid var(--glass-border);
    background: var(--glass-sec-bg);
    color: var(--text);
    font-weight: 600;
    font-size: 14px;
}
.glass-btn.danger {
    background: var(--err);
    color: #fff;
    border-color: transparent;
}

/* ГРУППЫ СПИСКОВ (КОНФИГИ) */
.list-group {
    padding: 8px 16px;
}
.list-group-header {
    font-size: 12px;
    font-weight: 700;
    color: var(--hint);
    text-transform: uppercase;
    padding: 8px 0;
    border-bottom: 1px solid var(--glass-border);
}
.list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--glass-border);
}
.list-item:last-child {
    border-bottom: none;
}
.item-title {
    font-size: 14px;
    font-weight: 600;
}
.item-subtitle {
    font-size: 12px;
    color: var(--hint);
}

/* РЕЖИМ ПРОИЗВОДИТЕЛЬНОСТИ */
body.performance-mode .cloud-bar,
body.performance-mode .glass-block,
body.performance-mode .glass-modal,
body.performance-mode .badge-status {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: var(--sec-bg) !important;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1) !important;
}
body.performance-mode #dynamic-bg,
body.performance-mode .bg-overlay {
    display: none !important;
}
.cloud-bar-inline {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 12px 16px;
    margin-bottom: 15px;
    font-weight: 600;
    color: var(--btn);
    box-shadow: var(--glass-shadow);
    cursor: pointer;
    text-align: center;
}