/* Основные стили, которые точно будут использованы */

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --body-bg: #f8f9fa;
    --text-color: #212529;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-color);
    background-color: var(--body-bg);
    min-height: 100vh;
}

/* Утилитарные классы */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }

.m-0 { margin: 0 !important; }
.p-0 { padding: 0 !important; }

/* Для печати */
@media print {
    .no-print { display: none !important; }
    body { background: white; }
}


/* === Переменные тем === */
:root {
    --bg-primary: #f5f7fa;
    --bg-secondary: #e4e9f0;
    --text-primary: #1a1a1a;
    --text-secondary: #555;
    --accent: #007bff;
    --border: #ddd;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --radius: 12px;
}

.dark-theme {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --text-primary: #f0f0f0;
    --text-secondary: #aaa;
    --border: #333;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* === Общие стили === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 600px;
    margin: 40px auto;
    padding: 20px;
}

/* === Переключатель темы === */
.theme-switcher {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
    font-size: 14px;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #007bff;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* === Форма входа === */
.auth-form {
    background-color: var(--bg-secondary);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.auth-form h2 {
    margin-bottom: 20px;
    text-align: center;
    color: var(--text-primary);
}

.input-group {
    margin-bottom: 18px;
}

.input-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 14px;
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 16px;
    transition: border 0.3s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.auth-form button {
    width: 100%;
    padding: 12px;
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.auth-form button:hover {
    background-color: #0056b3;
}

/* === Дашборд === */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.dashboard {
    text-align: center;
    padding: 40px 20px;
}

.dashboard h2 {
    margin-bottom: 16px;
    color: var(--text-primary);
}

.btn-logout {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #6c757d;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    transition: background 0.3s;
}

.btn-logout:hover {
    background-color: #545b62;
}

/* === Адаптивность === */
@media (max-width: 600px) {
    .container {
        margin: 20px;
        padding: 15px;
    }

    .auth-form,
    .dashboard {
        padding: 20px 15px;
    }

    .theme-switcher {
        font-size: 13px;
    }

    .input-group input,
    .auth-form button {
        font-size: 15px;
        padding: 10px;
    }
}