/**
 * BK-0010/0011M Emulator - Modern Dark Theme
 * Современный тёмный дизайн с адаптивной вёрсткой
 */

/* ============================================== */
/* Root Variables - Цветовая схема */
/* ============================================== */
:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --accent-primary: #e94560;
    --accent-secondary: #533483;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --border-color: #2a2a3e;
    --canvas-border: #e94560;
    --success-color: #00d9ff;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

/* ============================================== */
/* Base Styles - Базовые стили */
/* ============================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    padding: 20px;
}

a:link {
    color: var(--success-color)
}
a:visited {
    color: var(--success-color)
}
a:hover {
    color: var(--accent-primary)
}

/* Disable text selection */
.disSel {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    outline: 0;
}

/* ============================================== */
/* Main Container - Главный контейнер */
/* ============================================== */
#bg {
    display: none; /* Не используется в новом дизайне */
}

.main-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    gap: 30px;
}

/* Header - Заголовок */
.emulator-header {
    text-align: center;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 15px;
    box-shadow: 0 8px 32px var(--shadow-color);
    width: 50%;
    max-width: 1200px;
}

.emulator-header h1 {
    font-size: 1.5rem;
    background: linear-gradient(45deg, var(--accent-primary), var(--success-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.emulator-header p {
    color: var(--text-secondary);
    font-size: 1.0rem;
}

/* ============================================== */
/* Canvas Container - Контейнер канваса */
/* Адаптивная ширина: 720p–5k (ограничено 1600px для читаемости) */
/* ============================================== */
#dropfile {
    position: relative;
    width: 100%;
    /* Базовое ограничение ширины: по ширине окна и максимум 1600px.
       Вертикальное вписывание дорабатывается в JS (resizeDropfile()). */
    max-width: min(1600px, 95vw);
    background: var(--bg-secondary);
    border: 3px solid var(--canvas-border);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 8px 32px var(--shadow-color),
                0 0 60px rgba(233, 69, 96, 0.3);
    text-align: center;
    transition: all 0.3s ease;
}

.fullscreen-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--success-color);
    background: rgba(0, 0, 0, 0.55);
    color: var(--success-color);
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.fullscreen-btn:hover {
    background: rgba(0, 0, 0, 0.9);
}

#dropfile:hover {
    border-color: var(--success-color);
    box-shadow: 0 8px 40px var(--shadow-color),
                0 0 80px rgba(0, 217, 255, 0.4);
}

#dropfile.drag-over {
    background: var(--bg-tertiary);
    border-color: var(--success-color);
    transform: scale(1.02);
}

/* Полноэкранный режим: fullscreen для контейнера #dropfile, внутри центрируется #BK_canvas (4:3) */
#dropfile:fullscreen,
#dropfile:-webkit-full-screen,
#dropfile:-moz-full-screen,
#dropfile:-ms-fullscreen {
    max-width: none;
    width: 100vw;
    height: 100vh;
    padding: 0;
    border: none;
    border-radius: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #000;
}

#dropfile:fullscreen #BK_canvas,
#dropfile:-webkit-full-screen #BK_canvas,
#dropfile:-moz-full-screen #BK_canvas,
#dropfile:-ms-fullscreen #BK_canvas {
    max-width: 100vw;
    max-height: 100vh;
}

#dropfile:fullscreen #filesloaded {
    display: none;
}

#filesloaded {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 500;
}

/* BK Canvas: внутреннее разрешение 512×256 или 256×256, вывод в пропорции 4:3 как на мониторе/ТВ БК */
#BK_canvas {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    max-width: 100%;
    border-radius: 8px;
    background: #000;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
}

/* ============================================== */
/* Options Panel - Панель управления */
/* ============================================== */
#options {
    position: relative;
    width: 80%;
    max-width: 900px;
    background: var(--bg-secondary);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 8px 32px var(--shadow-color);
}

/* Options Grid Layout */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    align-items: start;
}

/* Option Group Container */
.option-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.option-group-small {
    min-width: 150px;
}

/* Info Display (PC Address and MHz) */
.info-display {
    display: flex;
    gap: 8px;
    margin: 8px 0;
}

.info-display > div {
    flex: 1;
}

/* Select Styling - Стилизация селектов */
select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23e0e0e0' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 30px;
}

select:hover {
    border-color: var(--accent-primary);
    background-color: var(--bg-secondary);
}

select:focus {
    outline: none;
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.2);
}

select option {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 10px;
}

/* Button Styling - Стилизация кнопок */
input[type="button"] {
    width: 100%;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
}

input[type="button"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(233, 69, 96, 0.5);
}

input[type="button"]:active {
    transform: translateY(0);
}

/* Checkbox Styling - Стилизация чекбоксов */
.Ckbx {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent-primary);
}

input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent-primary);
}

/* Info Display - Информационные блоки */
#PCaddr, #MHZshow {
    background: var(--bg-primary);
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    color: var(--success-color);
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 0.85rem;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
    text-align: center;
}

/* Sound Label */
.sound-label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    cursor: pointer;
}

/* Volume control */
.volume-control {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 0.9rem;
}
.volume-label {
    white-space: nowrap;
    min-width: 4.5em;
}
.volume-slider {
    flex: 1;
    min-width: 80px;
    max-width: 140px;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
}
.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--success-color);
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 0 8px var(--success-color), 0 1px 3px var(--shadow-color);
}
.volume-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--success-color);
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 0 8px var(--success-color), 0 1px 3px var(--shadow-color);
}

/* ============================================== */
/* Keyboard Section - Секция клавиатуры */
/* ============================================== */
.keyboard-container {
    margin-top: 20px;
}

#kbimage {
    text-align: center;
    background: var(--bg-tertiary);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

#kbimage img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

#kbvprsd {
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-primary);
    font-size: 28px;
    font-weight: bold;
    text-shadow: 0 0 10px var(--accent-primary);
    z-index: 100;
}

/* ============================================== */
/* Debug Window - Окно отладки */
/* ============================================== */
#debug_div {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 900px;
    height: 80vh;
    max-height: 600px;
    visibility: hidden;
    background: var(--bg-secondary);
    border: 2px solid var(--accent-primary);
    border-radius: 15px;
    box-shadow: 0 8px 40px var(--shadow-color);
    padding: 20px;
    z-index: 9999;
    overflow: auto;
}

.dbg0 {
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    color: var(--text-primary);
}

/* ============================================== */
/* Touch Buttons - Сенсорные кнопки */
/* ============================================== */
#touch_buttons_container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.touch-button-container {
    position: absolute;
    visibility: hidden;
}

.touch-button-container img {
    z-index: 5555;
    visibility: visible;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.5));
    transition: all 0.2s ease;
}

.touch-button-container img:active {
    transform: scale(0.95);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.7)) brightness(1.2);
}

/* ============================================== */
/* Utility Classes - Вспомогательные классы */
/* ============================================== */
hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 8px 0;
}

font {
    color: var(--text-primary);
}

/* ============================================== */
/* Responsive Design - Адаптивный дизайн */
/* ============================================== */

/* Tablets and smaller */
@media screen and (max-width: 1024px) {
    .emulator-header h1 {
        font-size: 2rem;
    }
    
    #options {
        padding: 15px;
    }
    
    .options-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 10px;
    }
}

/* Mobile devices */
@media screen and (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .emulator-header h1 {
        font-size: 1.5rem;
    }
    
    .emulator-header p {
        font-size: 0.9rem;
    }
    
    #dropfile {
        padding: 15px;
    }
    
    #options {
        padding: 12px;
    }
    
    .options-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    select {
        font-size: 0.85rem;
        padding: 8px 10px;
    }
    
    input[type="button"] {
        padding: 8px 12px;
        font-size: 0.85rem;
    }
    
    #kbimage img {
        max-width: 100%;
    }
    
    #debug_div {
        width: 95%;
        height: 90vh;
    }
}

/* Small mobile devices */
@media screen and (max-width: 480px) {
    .emulator-header h1 {
        font-size: 1.3rem;
    }
    
    .emulator-header p {
        font-size: 0.85rem;
    }
    
    #dropfile {
        padding: 10px;
    }
    
    #options {
        padding: 10px;
    }
    
    .options-grid {
        gap: 8px;
    }
    
    select {
        font-size: 0.8rem;
        padding: 6px 8px;
    }
    
    input[type="button"] {
        padding: 6px 10px;
        font-size: 0.8rem;
    }
    
    #PCaddr, #MHZshow {
        font-size: 0.75rem;
        padding: 5px 8px;
    }
}

/* ============================================== */
/* Animations - Анимации */
/* ============================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.emulator-header,
#dropfile,
#options {
    animation: fadeIn 0.6s ease-out;
}

#dropfile {
    animation-delay: 0.1s;
    animation-fill-mode: backwards;
}

#options {
    animation-delay: 0.2s;
    animation-fill-mode: backwards;
}

/* Loading indicator */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* ============================================== */
/* Scrollbar Styling - Стилизация скроллбара */
/* ============================================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--success-color);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--accent-primary) var(--bg-primary);
}

#virtualkbd {
    visibility: collapse;
}

#kbrd {
    visibility: collapse;
}

#toucheson {
    visibility: collapse;
}

#overjoyst {
    visibility: collapse;
}

#usergames {
    visibility: hidden;
}

#usergm2 {
    visibility: hidden;
}

#userbasic {
    visibility: hidden;
}