/* 관리자 로그인 페이지 스타일 */
:root {
    color-scheme: dark;
    font-family: 'Noto Sans KR', sans-serif;
    background-color: #0f172a;
    color: #eef2ff;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: radial-gradient(circle at top left, rgba(96, 165, 250, 0.18), transparent 28%),
                radial-gradient(circle at bottom right, rgba(236, 72, 153, 0.18), transparent 30%),
                linear-gradient(180deg, #020617 0%, #0b122e 100%);
}

.admin-login-page {
    width: 100%;
    max-width: 420px;
}

.login-card {
    width: 100%;
    padding: 36px 32px;
    border-radius: 24px;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.12);
    box-shadow: 0 32px 80px rgba(15, 23, 42, 0.35);
}

.login-header h1 {
    margin: 0 0 10px;
    font-size: 28px;
    letter-spacing: -0.04em;
}

.login-header p {
    margin: 0;
    color: #94a3b8;
    line-height: 1.7;
}

.login-form {
    margin-top: 28px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group label {
    font-size: 14px;
    color: #cbd5e1;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(15, 23, 42, 0.85);
    color: #f8fafc;
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus {
    border-color: #60a5fa;
    box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.12);
}

.login-button {
    width: 100%;
    padding: 14px 0;
    margin-top: 4px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, #60a5fa, #c084fc);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.login-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 30px rgba(96, 165, 250, 0.22);
}

.login-status {
    margin-top: 14px;
    min-height: 20px;
    font-size: 14px;
    color: #cbd5e1;
    text-align: center;
    line-height: 1.5;
}

.login-status.success {
    color: #86efac;
}

.login-status.error {
    color: #fda4af;
}

.login-footer {
    margin-top: 18px;
    text-align: center;
    color: #94a3b8;
    font-size: 13px;
}

.login-footer .back-button {
    display: inline-block;
    padding: 10px 18px;
    margin-top: 10px;
    border-radius: 12px;
    border: 1px solid rgba(148, 163, 184, 0.24);
    background: rgba(15, 23, 42, 0.72);
    color: #cbd5e1;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.login-footer .back-button:hover {
    background: rgba(96, 165, 250, 0.12);
    transform: translateY(-1px);
}

@media (max-width: 480px) {
    .login-card {
        padding: 28px 20px;
        border-radius: 20px;
    }

    .login-header h1 {
        font-size: 24px;
    }

    .form-group input {
        font-size: 14px;
    }

    .login-button {
        font-size: 15px;
    }
}