/* style.css — Стили с переменными Telegram темы */

:root {
    /* Дефолтные значения (будут переопределены JS) */
    --bg-color: #ffffff;
    --text-color: #000000;
    --hint-color: #999999;
    --button-color: #3390ec;
    --button-text: #ffffff;
    --danger-color: #e53935;
    --success-color: #4caf50;
    --card-bg: var(--bg-color);
    --border-radius: 16px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    padding: 16px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

#app {
    width: 100%;
    max-width: 480px;
}

.screen {
    display: none;
    animation: fadeIn 0.3s ease;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    text-align: center;
}

.card-error {
    border: 2px solid var(--danger-color);
}

h1 {
    font-size: 24px;
    margin-bottom: 16px;
    font-weight: 600;
}

p {
    margin: 8px 0;
    font-size: 16px;
}

.hint {
    color: var(--hint-color);
    font-size: 14px;
    margin-top: 12px;
}

.hint.small {
    font-size: 12px;
    margin-top: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 20px;
    margin: 16px 0 8px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background: var(--button-color);
    color: var(--button-text);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-secondary {
    background: transparent;
    color: var(--button-color);
    border: 2px solid var(--button-color);
}

.loading-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    color: white;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Адаптив для маленьких экранов */
@media (max-height: 600px) {
    body { padding: 8px; }
    .card { padding: 16px; }
    h1 { font-size: 20px; }
    .btn { padding: 12px; font-size: 15px; }
}