/* style.css */

/* ======================================== */
/*          1. ГЛОБАЛЬНЫЕ СТИЛИ             */
/* ======================================== */

/* 
  Определяем переменные-фоллбэки. Они будут использоваться,
  если вы откроете приложение в обычном браузере, а не в Telegram.
*/
:root {
    --tg-theme-bg-color: #ffffff;
    --tg-theme-text-color: #000000;
    --tg-theme-hint-color: #999999;
    --tg-theme-link-color: #007aff;
    --tg-theme-button-color: #007aff;
    --tg-theme-button-text-color: #ffffff;
    --tg-theme-secondary-bg-color: #f2f2f7;
    --tg-theme-destructive-text-color: #ff3b30;
}

/* Стили для всей страницы, имитирующие Telegram */
body {
    margin: 0;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    background-color: var(--tg-theme-bg-color);
    color: var(--tg-theme-text-color);
    overscroll-behavior: none; /* Убирает "оттягивание" страницы на мобильных */
    text-align: center;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased; /* Улучшает рендеринг шрифтов */
    -moz-osx-font-smoothing: grayscale;
}

h1 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 8px 0;
}

h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 12px 0;
    text-align: left;
}

p {
    margin: 0;
}

.subtitle {
    color: var(--tg-theme-hint-color);
    font-size: 15px;
    line-height: 1.4;
    max-width: 320px;
    margin: 0 auto 24px auto;
}

.hidden {
    display: none !important;
}

/* ======================================== */
/*         2. УПРАВЛЕНИЕ ЭКРАНАМИ           */
/* ======================================== */

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 100vh;
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    
    /* Анимация перехода */
    opacity: 0;
    transform: scale(0.98);
    pointer-events: none;
    transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

.screen.active {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
    z-index: 10;
}


/* ======================================== */
/*          3. ОСНОВНЫЕ ЭЛЕМЕНТЫ UI         */
/* ======================================== */

.button {
    width: 100%;
    max-width: 320px;
    padding: 14px;
    border-radius: 12px;
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    transition: transform 0.1s ease, opacity 0.2s;
}
.button:active {
    transform: scale(0.97);
}
.button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Спиннер загрузки */
.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--tg-theme-hint-color);
    border-top-color: var(--tg-theme-button-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}


/* ======================================== */
/*         4. СТИЛИ ДЛЯ ФОРМ                */
/* ======================================== */

.form-layout, .admin-layout, .result-layout {
    width: 100%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
}

.form-group {
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--tg-theme-hint-color);
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 14px;
    border-radius: 10px;
    border: none;
    background-color: var(--tg-theme-secondary-bg-color);
    color: var(--tg-theme-text-color);
    font-size: 16px;
    box-sizing: border-box;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    outline: none;
}


/* ======================================== */
/*        5. СТИЛИ КОНКРЕТНЫХ ЭКРАНОВ       */
/* ======================================== */

/* --- Главный экран (Idle) --- */
.idle-layout {
    display: flex;
    flex-direction: column;
    width: 100%;
    justify-content: space-between;
    gap: 30px;
}
#history-container {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}
.history-section {
    margin-bottom: 24px;
}
.history-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.history-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background-color: var(--tg-theme-secondary-bg-color);
    border-radius: 12px;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.2s;
}
.history-card:active {
    background-color: rgba(120, 120, 128, 0.2); /* Цвет нажатия в Telegram */
}
.history-name {
    font-weight: 500;
    word-break: break-word;
}
.history-status {
    font-size: 14px;
    color: var(--tg-theme-hint-color);
    text-transform: capitalize;
    flex-shrink: 0;
    margin-left: 10px;
}

/* --- Экран Администрирования --- */
.admin-layout {
    justify-content: flex-start;
    gap: 24px;
}
.share-title {
    margin: 0;
    font-weight: 600;
    text-align: left;
    color: var(--tg-theme-text-color);
}
#admin-share-section {
    width: 100%;
    border-radius: 12px;
    background-color: var(--tg-theme-secondary-bg-color);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    box-sizing: border-box;
}
.share-input-wrapper {
    display: flex;
    width: 100%;
}
#admin-invite-link {
    flex-grow: 1;
    border: none;
    background-color: var(--tg-theme-bg-color);
    color: var(--tg-theme-hint-color);
    padding: 10px 12px;
    border-radius: 8px 0 0 8px;
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
#admin-copy-link-btn {
    position: relative;
    border: none;
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    padding: 10px 16px;
    border-radius: 0 8px 8px 0;
    font-weight: 600;
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color 0.2s, transform 0.1s;
}
#admin-copy-link-btn:active {
    transform: scale(0.98);
}
#admin-edit-count-section {
    width: 100%;
    box-sizing: border-box;
}
.edit-count-wrapper {
    display: flex;
    gap: 8px;
}
#admin-giveaway-count {
    flex-grow: 1;
}
.button-save {
    border: none;
    background-color: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    padding: 0 16px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
}
#admin-participants-list {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}
.participant-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background-color: var(--tg-theme-secondary-bg-color);
    border-radius: 10px;
}
.participant-name {
    word-break: break-all;
}
.button-remove {
    border: none;
    background: none;
    color: var(--tg-theme-destructive-text-color);
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    padding: 0 8px;
    margin-left: 10px;
}
#admin-result-section {
    width: 100%;
}
.admin-result-text {
    padding: 16px;
    background-color: var(--tg-theme-secondary-bg-color);
    border-radius: 12px;
    text-align: center;
    font-size: 16px;
}
.admin-result-text strong {
    font-weight: 600;
    color: var(--tg-theme-link-color);
}

/* --- Экран Результата --- */
.result-layout {
    gap: 24px;
    /* --- ДОБАВИТЬ ЭТИ СВОЙСТВА --- */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1; /* Заставит layout занять все доступное место на экране */
    /* ------------------------------ */
}
.result-card {
    background-color: transparent;
    width: 300px;
    height: 180px;
    perspective: 1000px;
    cursor: pointer;
}
.result-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.7s cubic-bezier(0.25, 1, 0.5, 1);
    transform-style: preserve-3d;
}
.result-card.is-flipped .result-card-inner {
    transform: rotateY(180deg);
}
.result-card-front, .result-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
}
.result-card-front {
    background: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    font-size: 18px;
    font-weight: 600;
}
.result-card-back {
    background-color: var(--tg-theme-secondary-bg-color);
    color: var(--tg-theme-text-color);
    transform: rotateY(180deg);
}
#result-recipient-name {
    font-size: 24px;
    font-weight: bold;
}

/* ======================================== */
/*             6. АНИМАЦИИ                  */
/* ======================================== */

/* Анимация "выезда" снизу */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.screen.active .idle-layout > *,
.screen.active .form-layout > *,
.screen.active .admin-layout > *,
.screen.active .result-layout > *,
.screen.active > h1, .screen.active > .subtitle {
    opacity: 0;
    animation: fadeInUp 0.5s ease-out forwards;
}

.screen.active > *:nth-child(2),
.screen.active .idle-layout > *:nth-child(2),
.screen.active .form-layout > *:nth-child(2) {
    animation-delay: 0.1s;
}

.screen.active > *:nth-child(3),
.screen.active .idle-layout > *:nth-child(3),
.screen.active .form-layout > *:nth-child(3) {
    animation-delay: 0.2s;
}

/* Анимация для карточек в истории */
.history-card {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.4s ease-out forwards;
}

/* Анимация галочки */
.checkmark-wrapper {
    width: 120px;
    height: 120px;
    margin-bottom: 20px;
    overflow: visible; /* <-- ДОБАВИТЬ ЭТУ СТРОКУ */
}
.checkmark-circle {
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    stroke-width: 4;
    stroke: var(--tg-theme-button-color);
    fill: none;
    animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) 0.3s forwards;
}
.checkmark-check {
    transform-origin: 50% 50%;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    stroke-width: 5;
    stroke: var(--tg-theme-button-color);
    animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 1s forwards;
}
@keyframes stroke {
    100% { stroke-dashoffset: 0; }
}

/* Анимация конфетти */
.confetti-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 100;
}
.confetti {
    width: 8px;
    height: 8px;
    background-color: #f00;
    position: absolute;
    animation: confetti-fall 3s linear forwards;
    border-radius: 50%;
}
@keyframes confetti-fall {
    0% {
        transform: translateY(-10vh) rotateZ(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(110vh) rotateZ(720deg);
        opacity: 0;
    }
}