:root {
    --primary-blue: #bae6fd;   /* Light Blue */
    --primary-green: #bbf7d0;  /* Light Green */
    --btn-blue: #0284c7;
    --btn-blue-hover: #0369a1;
    --text-main: #1e293b;
    --bg-card: rgba(255, 255, 255, 0.85);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-main);
    overflow: hidden;
}

/* Smooth Animated Gradient Background */
.bg-animated {
    position: absolute;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-green), #f0fdf4, #e0f2fe);
    background-size: 400% 400%;
    animation: gradientShift 12s ease infinite;
    z-index: -1;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    width: 100%;
    max-width: 500px;
    padding: 20px;
}

.lang-switcher {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 10px;
    gap: 8px;
}

.lang-switcher button {
    background: none;
    border: 1px solid var(--btn-blue);
    color: var(--btn-blue);
    padding: 4px 12px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-switcher button.active, .lang-switcher button:hover {
    background: var(--btn-blue);
    color: white;
}

.card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    text-align: center;
    backdrop-filter: blur(10px);
}

h1 { margin-bottom: 10px; font-size: 2rem; }
p { margin-bottom: 25px; color: #475569; }

.primary-btn, .success-btn {
    background-color: var(--btn-blue);
    color: white;
    border: none;
    padding: 14px 28px;
    font-size: 1.1rem;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.3s;
    width: 100%;
    font-weight: bold;
}

.primary-btn:hover, .success-btn:hover {
    background-color: var(--btn-blue-hover);
    transform: translateY(-2px);
}

/* Кнопка "Показать инструкцию" */
.secondary-btn {
    background-color: transparent;
    color: var(--btn-blue);
    border: 2px solid var(--btn-blue);
    padding: 12px 28px;
    font-size: 1.1rem;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.3s, color 0.3s;
    width: 100%;
    font-weight: bold;
    margin-top: 15px;
}

.secondary-btn:hover {
    background-color: var(--btn-blue);
    color: white;
    transform: translateY(-2px);
}

/* Modal Styling */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.4);
    backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 16px;
    width: 90%;
    max-width: 400px;
    position: relative;
    text-align: center;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: translateY(0);
}

.close {
    position: absolute;
    top: 15px; right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: #94a3b8;
}

/* Общие стили для полей ввода */
input[type="text"],
input[type="email"] {
    width: 100%;
    padding: 12px;
    margin: 15px 0;
    border: 2px solid #cbd5e1;
    border-radius: 8px;
    text-align: center;
}

/* Специфичные стили для 6-значного ключа */
input[type="text"] {
    font-size: 1.5rem;
    letter-spacing: 4px;
}

/* Специфичные стили для ввода Apple ID */
input[type="email"] {
    font-size: 1.1rem;
    letter-spacing: normal;
}

.error { color: #ef4444; font-size: 0.9rem; margin-bottom: 10px; }
.hidden { display: none; }

/* Стили для шагов инструкции */
.instruction-step {
    text-align: left;
    margin-bottom: 25px;
}

.instruction-step h3 {
    color: var(--btn-blue);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.instruction-step p {
    margin-bottom: 10px;
    line-height: 1.5;
    color: var(--text-main);
}

.instruction-step img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    border: 1px solid #e2e8f0;
}