/* ==========================================
   Intro Animation
   ========================================== */

.intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: #F7F4E5;
    background-image:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 1px,
            rgba(74, 66, 55, 0.18) 1px,
            rgba(74, 66, 55, 0.18) 2px
        ),
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 1px,
            rgba(74, 66, 55, 0.15) 1px,
            rgba(74, 66, 55, 0.15) 2px
        ),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 1px,
            rgba(74, 66, 55, 0.08) 1px,
            rgba(74, 66, 55, 0.08) 2px
        );
    background-size: 3px 3px;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.intro-overlay.hidden {
    display: none;
}

/* Контейнер для призрачных страниц */
.ghost-pages {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Общие стили для призрачных страниц */
.ghost-page {
    position: absolute;
    height: 150vh;
    width: auto;
    opacity: 0.6;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
}

/* Анимация движения для первой страницы */
.ghost-page-1 {
    animation: ghostFloat1 3s steps(1, jump-start) infinite;
}

@keyframes ghostFloat1 {
    0% {
        transform: translateX(-50%) translateX(-15px);
    }
    10% {
        transform: translateX(-50%) translateX(8px);
    }
    20% {
        transform: translateX(-50%) translateX(-12px);
    }
    30% {
        transform: translateX(-50%) translateX(5px);
    }
    40% {
        transform: translateX(-50%) translateX(-8px);
    }
    50% {
        transform: translateX(-50%) translateX(3px);
    }
    60% {
        transform: translateX(-50%) translateX(-5px);
    }
    70% {
        transform: translateX(-50%) translateX(2px);
    }
    80% {
        transform: translateX(-50%) translateX(-2px);
    }
    90% {
        transform: translateX(-50%) translateX(1px);
    }
    100% {
        transform: translateX(-50%) translateX(0);
    }
}

/* Анимация движения для второй страницы */
.ghost-page-2 {
    animation: ghostFloat2 3s steps(1, jump-start) infinite;
}

@keyframes ghostFloat2 {
    0% {
        transform: translateX(-50%) translateX(12px);
    }
    10% {
        transform: translateX(-50%) translateX(-18px);
    }
    20% {
        transform: translateX(-50%) translateX(10px);
    }
    30% {
        transform: translateX(-50%) translateX(-14px);
    }
    40% {
        transform: translateX(-50%) translateX(7px);
    }
    50% {
        transform: translateX(-50%) translateX(-9px);
    }
    60% {
        transform: translateX(-50%) translateX(4px);
    }
    70% {
        transform: translateX(-50%) translateX(-5px);
    }
    80% {
        transform: translateX(-50%) translateX(2px);
    }
    90% {
        transform: translateX(-50%) translateX(-1px);
    }
    100% {
        transform: translateX(-50%) translateX(0);
    }
}

/* Анимация движения для третьей страницы */
.ghost-page-3 {
    animation: ghostFloat3 3s steps(1, jump-start) infinite;
}

@keyframes ghostFloat3 {
    0% {
        transform: translateX(-50%) translateX(-20px);
    }
    10% {
        transform: translateX(-50%) translateX(11px);
    }
    20% {
        transform: translateX(-50%) translateX(-16px);
    }
    30% {
        transform: translateX(-50%) translateX(9px);
    }
    40% {
        transform: translateX(-50%) translateX(-11px);
    }
    50% {
        transform: translateX(-50%) translateX(6px);
    }
    60% {
        transform: translateX(-50%) translateX(-7px);
    }
    70% {
        transform: translateX(-50%) translateX(3px);
    }
    80% {
        transform: translateX(-50%) translateX(-3px);
    }
    90% {
        transform: translateX(-50%) translateX(1px);
    }
    100% {
        transform: translateX(-50%) translateX(0);
    }
}

/* Финальная непрозрачная страница */
.final-page {
    position: absolute;
    height: 150vh;
    width: auto;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    pointer-events: none;
}

.final-page.visible {
    opacity: 1;
}

/* Зеленый полноэкранный overlay */
.green-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: #00FF53;
    opacity: 0;
    pointer-events: none;
    z-index: 5;
    mix-blend-mode: color;
}

.green-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.3'/%3E%3C/svg%3E");
    opacity: 0.6;
}

.green-overlay.greening {
    animation: turnGreen 2s ease-in-out forwards;
}

@keyframes turnGreen {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

/* Windows 95 окно для жеста */
.gesture-window {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    background: #AFAD9E;
    border: none;
    border-top: 3px solid #DFDFDF;
    border-left: 3px solid #DFDFDF;
    border-bottom: 3px solid #404040;
    border-right: 3px solid #404040;
    box-shadow: inset 1px 1px 0 #FFFFFF, inset -1px -1px 0 #808080, 2px 2px 4px rgba(0,0,0,0.3);
    border-radius: 0;
    opacity: 0;
    pointer-events: none;
    z-index: 10;
    transition: opacity 0.5s ease;
    font-family: 'MS Sans Serif', Arial, sans-serif;
}

.gesture-window.visible {
    opacity: 1;
    pointer-events: auto;
}

/* Заголовок окна в стиле Windows 95 */
.gesture-window-header {
    background: linear-gradient(90deg, #b3987c 0%, #DAB892 100%);
    border: none;
    padding: 3px 4px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: 0;
    border: #000000 1px solid;
}

.gesture-window-title {
    font-size: 14px;
    font-weight: bold;
    color: #FFFFFF;
    margin: 0;
    letter-spacing: 0.5px;
}

/* Содержимое окна */
.gesture-window-content {
    padding: 20px;
}

/* Основная инструкция */
.gesture-instruction-main {
    font-size: 16px;
    color: #000000;
    margin: 0 0 15px 0;
    text-align: center;
    line-height: 1.3;
}

/* Вторичная инструкция */
.gesture-instruction-sub {
    font-size: 16px;
    color: #FFFFFF;
    padding: 6px 10px;
    margin: 0 0 15px 0;
    text-align: center;
    line-height: 1.4;
}

/* Приветственный текст */
.welcome-text {
    font-size: 16px;
    /* font-family: 'Courier New', Courier, monospace; */
    color: #000000;
    text-align: center;
    line-height: 1.6;
    margin-bottom: 25px;
    padding: 20px 10px;
}

/* Кнопка готовности */
.ready-button {
    display: block;
    margin: 0 auto;
    padding: 6px 20px;
    font-size: 14px;
    /* font-family: 'Courier New', Courier, monospace; */
    background: #C0C0C0;
    color: #000000;
    border: none;
    border-top: 2px solid #FFFFFF;
    border-left: 2px solid #FFFFFF;
    border-bottom: 2px solid #808080;
    border-right: 2px solid #808080;
    box-shadow: inset 1px 1px 0 #DFDFDF, inset -1px -1px 0 #000000;
    cursor: pointer;
    outline: none;
}

.ready-button:active {
    border-top: 2px solid #808080;
    border-left: 2px solid #808080;
    border-bottom: 2px solid #FFFFFF;
    border-right: 2px solid #FFFFFF;
    box-shadow: inset 1px 1px 0 #000000, inset -1px -1px 0 #DFDFDF;
}

/* GIF демонстрация жеста */
.gesture-demo {
    display: block;
    width: 120px;
    height: auto;
    margin: 0 auto 15px;
    /* border: 1px solid #4A4237; */
}

/* Контейнер видео */
.video-container {
    position: relative;
    width: 100%;
    height: 280px;
    background: #000;
    border: none;
    border-top: 2px solid #808080;
    border-left: 2px solid #808080;
    border-bottom: 2px solid #FFFFFF;
    border-right: 2px solid #FFFFFF;
    box-shadow: inset 1px 1px 0 #404040, inset -1px -1px 0 #DFDFDF;
    border-radius: 0;
    overflow: hidden;
    margin-bottom: 15px;
}

#gestureVideo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: sepia(1) contrast(1.2) brightness(0.9);
    transform: scaleX(-1); /* Зеркало для удобства */
}

#gestureCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* Статус детекции */
.gesture-status {
    text-align: center;
    font-size: 14px;
    color: #000000;
    padding: 8px 12px;
    background: #F7F4E5;
    border: 1px solid #4A4237;
    border-radius: 0;
    font-weight: normal;
    /* font-family: Courier, monospace; */
    letter-spacing: 0.5px;
    position: relative;
}

.gesture-status::before {
    content: '●';
    margin-right: 8px;
    font-size: 8px;
    color: #808080;
    vertical-align: middle;
}

.gesture-status.detecting {
    background: #E5DCC5;
    border-color: #4A4237;
}

.gesture-status.detecting::before {
    color: #D9A547;
    animation: pulse 1s infinite;
}

.gesture-status.success {
    background: #0aee4e;
    color: #FFFFFF;
    border-color: #2D5039;
}

.gesture-status.success::before {
    color: #FFFFFF;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

/* Сообщение об успехе */
.success-message {
    display: none;
    padding: 0;
}

.success-message.visible {
    display: block;
}

.success-header {
    background: #00FF00;
    color: #000000;
    font-size: 14px;
    font-weight: bold;
    padding: 3px 4px;
    text-align: left;
    letter-spacing: 0.5px;
    border: 1px solid #000000;
}

/* Скрыть основную шапку когда показывается success */
.gesture-window:has(.success-message.visible) .gesture-window-header {
    display: none;
}

.success-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 30px 20px;
    background: #C0C0C0;
}

.hand-left {
    width: 100px;
    height: auto;
    transform: scaleX(-1);
}

.hand-right {
    width: 100px;
    height: auto;
}

.peace-text {
    font-size: 18px;
    font-weight: bold;
    color: #000000;
    margin: 0;
    white-space: nowrap;
}

/* Скрыть основной контент при успехе */
.gesture-window-content.hidden {
    display: none;
}

/* ==========================================
   Адаптивность
   ========================================== */

@media (max-width: 768px) {
    .ghost-page,
    .final-page {
        height: 120vh;
    }

    .gesture-window {
        width: 90%;
        max-width: 450px;
    }

    .video-container {
        height: 240px;
    }

    .gesture-instruction {
        font-size: 16px;
    }

    br.desktop-only {
        display: none;
    }
}

@media (max-width: 480px) {
    .ghost-page,
    .final-page {
        height: 100vh;
        width: 100%;
        object-fit: contain;
    }

    .gesture-window {
        width: 95%;
        max-width: 100%;
    }

    .video-container {
        height: 200px;
    }

    .gesture-instruction {
        font-size: 16px;
        margin-bottom: 15px;
    }

    .gesture-window-content {
        padding: 15px;
    }

    .gesture-window-title {
        font-size: 14px;
    }

    .gesture-status {
        font-size: 14px;
        padding: 8px 10px;
    }

    .hand-left, .hand-right {
        width: 80px;
    }

    .peace-text {
        font-size: 16px;
    }
}