* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    background: #f0f2f5;
    color: #222;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Шапка ===== */
header {
    background: #2c5f8a;
    color: #fff;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header .logo {
    font-size: 1.15rem;
    font-weight: bold;
    color: #fff;
    text-decoration: none;
}

header nav a {
    color: #cde4f5;
    text-decoration: none;
    margin-left: 16px;
    font-size: .9rem;
}
header nav a:hover { color: #fff; text-decoration: underline; }
header nav a.active { color: #fff; font-weight: bold; }
header nav span { color: #cde4f5; font-size: .9rem; margin-left: 16px; }

/* ===== Основной контент ===== */
main {
    flex: 1;
    max-width: 540px;
    width: 100%;
    margin: 30px auto;
    padding: 0 16px;
}

/* ===== Карточка ===== */
.card {
    background: #fff;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    padding: 28px 28px 24px;
    box-shadow: 0 1px 4px rgba(0,0,0,.08);
}

.card h1 {
    font-size: 1.3rem;
    margin-bottom: 4px;
    color: #1a1a2e;
}

.card .subtitle {
    color: #666;
    font-size: .85rem;
    margin-bottom: 22px;
}

/* ===== Формы ===== */
.form-group {
    margin-bottom: 14px;
}

label {
    display: block;
    font-size: .875rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 4px;
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    border: 1px solid #aaa;
    border-radius: 4px;
    font-size: .95rem;
    padding: 8px 10px;
    background: #fff;
    color: #222;
    outline: none;
}
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus {
    border-color: #2c5f8a;
    box-shadow: 0 0 0 2px rgba(44,95,138,.15);
}

/* ===== Кнопки ===== */
.btn {
    display: inline-block;
    padding: 9px 20px;
    border-radius: 4px;
    border: 1px solid transparent;
    font-size: .9rem;
    font-weight: bold;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: #2c5f8a;
    color: #fff;
    width: 100%;
    margin-top: 6px;
    border-color: #235075;
}
.btn-primary:hover { background: #235075; }

.btn-secondary {
    background: #e8edf2;
    color: #333;
    border-color: #bbc4cc;
}
.btn-secondary:hover { background: #d8e2eb; }

.btn-copy {
    background: #e8edf2;
    color: #444;
    border: 1px solid #bbc4cc;
    padding: 7px 14px;
    font-size: .85rem;
    white-space: nowrap;
}
.btn-copy:hover { background: #d0dce8; }
.btn-copy.copied { background: #d4edda; border-color: #5a9e75; color: #2d6a4a; }

/* ===== Уведомления ===== */
.alert {
    padding: 10px 14px;
    border-radius: 4px;
    font-size: .875rem;
    margin-bottom: 16px;
    border: 1px solid;
}
.alert-error   { background: #fff0f0; border-color: #e8a0a0; color: #a00; }
.alert-success { background: #f0fff4; border-color: #8ec9a8; color: #1e5c38; }

/* ===== Ссылка под формой ===== */
.footer-link {
    text-align: center;
    margin-top: 16px;
    font-size: .875rem;
    color: #555;
}
.footer-link a { color: #2c5f8a; }
.footer-link a:hover { text-decoration: underline; }

/* ===== Поле с паролем ===== */
.pw-output {
    background: #f5f8fc;
    border: 1px solid #c0ccd8;
    border-radius: 4px;
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.pw-output #pw-display {
    flex: 1;
    font-family: 'Courier New', monospace;
    font-size: .95rem;
    color: #1a1a2e;
    word-break: break-all;
    min-height: 22px;
}

/* ===== Полоска сложности ===== */
.strength-wrap {
    margin-bottom: 16px;
}
.strength-label {
    display: flex;
    justify-content: space-between;
    font-size: .8rem;
    color: #555;
    margin-bottom: 4px;
}
.strength-bar {
    height: 8px;
    border-radius: 3px;
    background: #dde3ea;
    border: 1px solid #c8d0d9;
    overflow: hidden;
}
.strength-fill {
    height: 100%;
    transition: width .3s, background .3s;
}

/* ===== Настройки ===== */
.settings-grid {
    margin-bottom: 18px;
}

.setting-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    border-bottom: 1px solid #f0f2f5;
}
.setting-row:last-child { border-bottom: none; }

.setting-row label {
    font-weight: normal;
    font-size: .9rem;
    color: #222;
    cursor: pointer;
    flex: 1;
    margin: 0;
}

.setting-row input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: #2c5f8a;
    flex-shrink: 0;
}

input[type="range"] {
    width: 130px;
    cursor: pointer;
    accent-color: #2c5f8a;
    flex-shrink: 0;
}

.range-val {
    min-width: 28px;
    text-align: right;
    font-size: .9rem;
    font-weight: bold;
    color: #2c5f8a;
}

/* Разделитель */
.divider {
    border: none;
    border-top: 1px solid #dde3ea;
    margin: 16px 0;
}

/* ===== Подвал ===== */
footer {
    text-align: center;
    padding: 14px;
    font-size: .8rem;
    color: #888;
    border-top: 1px solid #dde3ea;
    background: #fff;
}