:root {
    --bg-color: #f0f2f5;
    --card-bg: #ffffff;
    --text-primary: #111b21;
    --text-secondary: #667781;
    --primary-color: #00a884;
    --primary-hover: #008f72;
    --border-color: #e9edef;
    --error-color: #ea0038;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0b141a;
        --card-bg: #111b21;
        --text-primary: #e9edef;
        --text-secondary: #8696a0;
        --primary-color: #00a884;
        --primary-hover: #008f72;
        --border-color: #222d34;
        --error-color: #f15c6d;
    }
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 450px;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease;
}

.auth-header {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 30px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.auth-header svg {
    fill: currentColor;
    width: 48px;
    height: 48px;
}

.auth-header h1 {
    font-size: 24px;
    font-weight: 600;
}

.auth-header p {
    font-size: 14px;
    opacity: 0.9;
}

.auth-body {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 550;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-input:focus {
    border-color: var(--primary-color);
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-check input {
    accent-color: var(--primary-color);
    width: 16px;
    height: 16px;
}

.btn-primary {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 6px;
    background-color: var(--primary-color);
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

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

.auth-footer {
    padding: 20px 30px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.alert-danger {
    background-color: rgba(234, 0, 56, 0.1);
    color: var(--error-color);
    border: 1px solid var(--error-color);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-danger ul {
    list-style-type: none;
}